From nobody Mon Apr 6 03:46:08 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fpwGp600gz6YXvV for ; Mon, 06 Apr 2026 03:46:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fpwGp2lxYz3hYJ for ; Mon, 06 Apr 2026 03:46:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775447170; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; 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Mon, 6 Apr 2026 03:46:09 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 282140] igc(4): Wake on LAN not working with Intel I226-V and GENERIC Kernel Date: Mon, 06 Apr 2026 03:46:08 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hnishida@thelustrecollective.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc attachments.created Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282140 Hiroshi Nishida changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hnishida@thelustrecollectiv | |e.com --- Comment #3 from Hiroshi Nishida --- Created attachment 269399 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D269399&action= =3Dedit Fix Wake-on-LAN for Intel I226-V (igc driver) Tested on Intel NUC 13 Pro (Arena Canyon, Core i5-1340P) with FreeBSD 14.4-RELEASE. Two issues were found: 1. igc_get_wakeup() never sets IGC_WUFC_MAG (magic packet bit), causing igc_enable_wakeup() to always skip WOL setup and jump to pme: label without arming the NIC for magic packet wakeup. 2. The PHY Power Management register has DIS_100_D3, DIS_1000_D3, and DIS_2500_D3 bits set, which disable link speeds in D3 state and prevent the NIC from receiving magic packets after shutdown. Fix: Always set IGC_WUFC_MAG in igc_get_wakeup(), and clear the DIS_*_D3 bits in the PHPM register in igc_enable_wakeup(). --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Apr 6 03:52:19 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fpwPv3fyJz6YYgv for ; Mon, 06 Apr 2026 03:52:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fpwPv28CJz3k8L for ; Mon, 06 Apr 2026 03:52:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Mon, 06 Apr 2026 03:52:19 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 6363qJlj005074 for ; Mon, 6 Apr 2026 03:52:19 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 6363qJDD005073 for net@FreeBSD.org; Mon, 6 Apr 2026 03:52:19 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 282140] igc(4): Wake on LAN not working with Intel I226-V and GENERIC Kernel Date: Mon, 06 Apr 2026 03:52:19 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hnishida@thelustrecollective.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282140 --- Comment #4 from Hiroshi Nishida --- Comment on attachment 269399 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D269399 Fix Wake-on-LAN for Intel I226-V (igc driver) I experienced the same issue on Intel NUC 13 Pro (Arena Canyon, Core i5-134= 0P) with FreeBSD 14.4-RELEASE and Intel I226-V NIC. SYMPTOMS: WOL works when shutting down from BIOS, but does not work after "shutdown -p now" from FreeBSD. ifconfig shows WOL_MAGIC in options, but the machine never po= wers on when a magic packet is sent. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Apr 6 03:53:12 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fpwQx0zm3z6YYlW for ; Mon, 06 Apr 2026 03:53:13 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fpwQw6qpZz3l1X for ; 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Mon, 06 Apr 2026 03:53:12 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 6363rCbH005592 for ; Mon, 6 Apr 2026 03:53:12 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 6363rC7W005591 for net@FreeBSD.org; Mon, 6 Apr 2026 03:53:12 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 282140] igc(4): Wake on LAN not working with Intel I226-V and GENERIC Kernel Date: Mon, 06 Apr 2026 03:53:12 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hnishida@thelustrecollective.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282140 --- Comment #5 from Hiroshi Nishida --- Comment on attachment 269399 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D269399 Fix Wake-on-LAN for Intel I226-V (igc driver) I experienced the same issue on Intel NUC 13 Pro (Arena Canyon, Core i5-134= 0P) with FreeBSD 14.4-RELEASE and Intel I226-V NIC. SYMPTOMS: WOL works when shutting down from BIOS, but does not work after "shutdown -p now" from FreeBSD. ifconfig shows WOL_MAGIC in options, but the machine never po= wers on when a magic packet is sent. ROOT CAUSE: Two issues were found in the igc driver: 1. igc_get_wakeup() never sets IGC_WUFC_MAG (magic packet bit). As a result, igc_enable_wakeup() always jumps to the pme: label without arming the NIC for magic packet wakeup, even though WOL_MAGIC appears in ifconfig outpu= t. 2. The PHY Power Management register (IGC_I225_PHPM) has DIS_100_D3, DIS_1000_D3, and DIS_2500_D3 bits set on shutdown, which disables all link speeds in D3 state and prevents the NIC from receiving magic packet= s. FIX: - Always set IGC_WUFC_MAG in igc_get_wakeup() - Clear DIS_100_D3, DIS_1000_D3 and DIS_2500_D3 bits in the PHPM register inside igc_enable_wakeup() I built a custom kernel with the attached patch on 14.4-RELEASE and confirm= ed that WOL works correctly after "shutdown -p now". --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Apr 6 12:36:29 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fq82k1G8Nz6Wwdx for ; Mon, 06 Apr 2026 12:36:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fq82k0dvJz3WWB for ; 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Mon, 06 Apr 2026 12:36:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 636CaT6B087034 for ; Mon, 6 Apr 2026 12:36:29 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 636CaTeA087029 for net@FreeBSD.org; Mon, 6 Apr 2026 12:36:29 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 253888] exclusive sleep mutex vtnet0-rx0 (vtnet0-rx0) r = 0 (0xfffff800035d4780) locked Date: Mon, 06 Apr 2026 12:36:29 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: giorgitchankvetadze1997@gmail.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253888 Giorgi Tchankvetadze changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |giorgitchankvetadze1997@gma | |il.com --- Comment #18 from Giorgi Tchankvetadze --- I can confirm this LOR is still actively triggering on the latest 16.0-CURR= ENT.=20 Environment: - Host: QEMU/KVM on AMD Ryzen 9 6900HX=20 - Guest: FreeBSD 16.0-CURRENT (amd64) with SMP (8 cores) - Interface: VirtIO (vtnet0) --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Apr 6 23:57:32 2026 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fqR8Z12pVz6YGQR for ; 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Mon, 06 Apr 2026 23:57:33 +0000 (UTC) (envelope-from scf@FreeBSD.org) Received: from thor.farley.org (thor.farley.org [192.168.1.5]) by farley.org (8.18.2/8.18.2) with ESMTPS id 636NvWlD044075 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Mon, 6 Apr 2026 19:57:32 -0400 (EDT) (envelope-from scf@FreeBSD.org) Date: Mon, 6 Apr 2026 19:57:32 -0400 (EDT) From: "Sean C. Farley" To: Kevin Lo cc: freebsd-net@freebsd.org Subject: Re: rge(4) RTL8126 simple testing In-Reply-To: Message-ID: References: <823b482e-ec8f-8738-0ea3-23778f558693@FreeBSD.org> <8476fab9-91ca-ef23-e189-52d981af61b2@FreeBSD.org> <4f806cc0-4fa7-5620-94a4-ad0ff1bb19b9@FreeBSD.org> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Spam-Status: No, score=-1.0 required=4.0 tests=ALL_TRUSTED,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=4.0.2 X-Spam-Checker-Version: SpamAssassin 4.0.2 (2025-08-27) on mail.farley.org On Sun, 29 Mar 2026, Kevin Lo wrote: > On Sat, Mar 28, 2026 at 03:12:56PM -0400, Sean C. Farley wrote: >> >> On Fri, 27 Mar 2026, Kevin Lo wrote: >> >>> On Wed, Mar 04, 2026 at 04:02:37PM -0500, Sean C. Farley wrote: >>>> >>>> On Sat, 28 Feb 2026, Sean C. Farley wrote: *snip* >>>> I have spent awhile trying different things yet cannot get these to >>>> work at 2.5G. The Realtek vendor driver cannot negotiate at 2.5G >>>> nor can Linux 6.18 (Arch Linux). >>>> >>>> Important details: >>>> - FreeBSD dmesg chip rev: RTL8126_2 (0x64a00000) >>> >>> Since all the RTL8126 chip revisions I have on hand are RTL8126_1 >>> (0x64900000), I went ahead and bought the BrosTrend 5G network card you >>> recommended. >>> Purchasing directly from the BrosTrend official website wasn't an option >>> since they don't ship to Taiwan, so I ordered from Amazon [1] instead. >>> Unfortunately, the one I received turned out to be RTL8126_1 as well. :( >>> >>> [1] https://www.amazon.com/dp/B0CYZ9M3LR >> >> I take it that the RTL8126_1 cards you have can negotiate to 2.5G? That >> gives me hope that these can do it too. > > Regardless of the chipset, it should have no problem negotiating to 2.5G. > If there is an issue, it's definitely a bug. I haven't encountered any > problems so far. > >> That is too bad. I guess that the warehouse for Amazon near you has older >> stock. I appreciate you looking. It is too bad that Realtek does not >> produce reference cards. > > I want to know if the RTL8126_2 actually has a bug. > Anyway, I'll keep looking into it. Thank you. I will continue to look at it too although I am an amateur with hardware drivers. Out of curiosity, are my cards actually revision 2? In the Realtek driver, it looks like there are three revisions of the 8126, or is the first version something that was a test model? - 0x64800000: re_type = MACFG_90, calls re_set_mac_mcu_8126a_1 re_sw_ram_code_ver = NIC_RAMCODE_VERSION_8126A_REV_A - 0x64900000: re_type = MACFG_91, calls re_set_mac_mcu_8126a_2 re_sw_ram_code_ver = NIC_RAMCODE_VERSION_8126A_REV_B - 0x64A00000: re_type = MACFG_92, calls re_set_mac_mcu_8126a_3 re_sw_ram_code_ver = NIC_RAMCODE_VERSION_8126A_REV_C Sean -- scf@FreeBSD.org From nobody Tue Apr 7 14:04:37 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fqnxx54gXz6YK8J for ; Tue, 07 Apr 2026 14:04:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fqnxx1ll6z3X62 for ; Tue, 07 Apr 2026 14:04:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775570677; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kDWaoJ8uDIR/zgvJCweg1qlAJtSXApCgTzC791Vj7FQ=; b=ZwNt/Y1cxHntaGKDwUHdoRLTBJIh3EicSq/YNBy1FOLD0NrgwwCJ076qs4H3WReXt0i2oL 6QzDzggaUCH8PQXaF1xSV3BC1WlxpElPyyTtF32WeI/FOZEyEJRgk0KWICXG15J7Z2nnSs JeA1X0d+1sJc5vbn6sTjPoaQnaqYOXDphxmKt6JR6pspwla4mMfalbbQz/HQkuJhQHWj7D 6B9H16X1FPr5Fag7wvW9zog7O00TR1eG5jbsmkW7wcsX66KDknY05cTTJv6Y804vgx1Ra9 ki1sUWG4VrJP1U4qT1Zd95Ignq8GVdoR03s7gpDxVhR5vXpDvXMszhBnTmwuBg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775570677; a=rsa-sha256; cv=none; b=UOn+zp5y8wssYpcBtLELkiSsBYZvO97qWVh0Yn8PAVi9FB9fDx+WbnbPjNAk8PJ3vaIIE2 kr3pQqmmuDvPqThD5+JWuYzUksSJF6Sqfl6ZbcvhQmWVsHt/3CDL4XugQbldYMNx+dY1sw nu4BwrbIPoQHj0I49XMX4E83XLspJmzTkLN/RqCqIqz5HKAC0Ns96GGwkzEr4ezNWc2RfO AR47b775DkMn0tKK/gHAy2TBTwltpdMrj+g7tys7hrnNVJ3I4eEJyUCly+HjR2T4H+CUuB fNyKOPzY4zZIRRKlEDjNLj3Pw2HjeRKSzhCMCPHSLW7pfVwaD0Xtvu0HhIzpJw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775570677; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kDWaoJ8uDIR/zgvJCweg1qlAJtSXApCgTzC791Vj7FQ=; b=OjFNA2baKX1ppT3/9nV9IVo3e+Xs4Lz6SdJBJhHDlG48n/hH21+x2X1M7vPRbVkVU7pTUc 4tA+9+ujapS+Zc15qfV7vE5JS3V4WlJKY2b0HyEGJYS/u9l7O68GW+/HPxZSCstW55kOhF lJXAoxO26enA5XKvGDpQFgrYD1MJDOWUvmfx6vBqmgIdoh0k4K+yOeCnsiXK2Jznb8YDV5 kTkFbnXWcVKSmMzfjUZ2fDtV0FNQbn8MluxTMBWnbuToSYhJSulPOySczkQgY3pz04y8Xr aBL8XeyKio5w4zi9o98pkCxmFpCu/UC2IMGpmZCSdza07E2e67wYAPojykJdfA== Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4fqnxx0jwQzk4l for ; Tue, 07 Apr 2026 14:04:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 637E4akp073046 for ; Tue, 7 Apr 2026 14:04:36 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 637E4aUK073045 for net@FreeBSD.org; Tue, 7 Apr 2026 14:04:36 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 289869] if_io_tqg_* threads get stuck taking CPU time while doing nothing. Date: Tue, 07 Apr 2026 14:04:37 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to see_also Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D289869 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|bugs@FreeBSD.org |net@FreeBSD.org See Also| |https://bugs.freebsd.org/bu | |gzilla/show_bug.cgi?id=3D2= 409 | |44 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Tue Apr 7 14:04:37 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fqnxz5fZYz6YK5l for ; 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Wed, 08 Apr 2026 14:38:44 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Wed, 8 Apr 2026 15:38:40 +0100 From: Lexi Winter To: net@freebsd.org Subject: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="VUpSX5RcmlHCglXN" Content-Disposition: inline --VUpSX5RcmlHCglXN Content-Type: text/plain; charset=us-ascii Content-Disposition: inline hello, i'm using FreeBSD main: FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 UTC 2026 root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC64 as a qemu (KVM) guest on a Linux host: Linux 6.18.21-0-lts #1-Alpine SMP 2026-04-07 10:34:29 ppc64le on the Linux side, qemu is configured to provide a tap interface to the guest: qemu-system-ppc64 \ -smp cpus=176,sockets=2,cores=22,threads=4 \ -accel kvm -M pseries -m 8g -nographic -serial mon:stdio \ -drive file=/vm/ppc64-main/root.img,format=raw,if=virtio \ -netdev tap,id=net0,ifname=vm-ppc64-main,script=no,downscript=no \ -device virtio-net-pci,netdev=net0 the tap interface looks fine: 10: vm-ppc64-main: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether ae:dc:d8:39:be:fa brd ff:ff:ff:ff:ff:ff inet6 fe80::acdc:d8ff:fe39:befa/64 scope link proto kernel_ll valid_lft forever preferred_lft forever inet6 fe80::1/64 scope link valid_lft forever preferred_lft forever on the FreeBSD side, the vtnet interface also looks fine: vtnet0: flags=1008843 metric 0 mtu 1500 options=cc00ba ether 52:54:00:12:34:56 inet6 fe80::2%vtnet0 prefixlen 64 scopeid 0x1 media: Ethernet autoselect (10Gbase-T ) status: active nd6 options=821 on the host, i can ping fe80::2%vm-ppc64-main: PING fe80::2%vm-ppc64-main (fe80::2%10): 56 data bytes 64 bytes from fe80::2: seq=0 ttl=64 time=14.833 ms 64 bytes from fe80::2: seq=1 ttl=64 time=12.524 ms then i configured an IP address on lo0 on the guest: lo0: flags=1008049 metric 0 mtu 16384 options=680003 inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 inet6 fd00:0:0:1::b prefixlen 128 groups: lo nd6 options=21 a route exists for this on the host: fd00:0:0:1::b via fe80::2 dev vm-ppc64-main proto bird metric 32 pref medium when trying to ping this address, on the host, i can see ICMP packets leaving the tap interface: 15:34:39.106898 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo request, id 49664, seq 3, length 64 15:34:40.106951 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo request, id 49664, seq 4, length 64 but these packets never arrive on the guest; tcpdump shows nothing. however, 'netstat -in' shows that the packets *are* arriving on the guest, since Ipkts increments for each ICMP packet. it seems like they're just getting lost somewhere in the network stack. (Ierrs/Oerrs is zero.) does anyone have any ideas what might be causing this? --VUpSX5RcmlHCglXN Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadZobQAKCRD1nT63mIK/ YMrVAQC7NtsvPXmmZdh1O/iPfwQPvN0ezQiMjAnbE56YrgnglgD9Gp2V8m+qxOvv lweZlbovpTaCokoSu5TvCZAGqRKqSgA= =ZcM6 -----END PGP SIGNATURE----- --VUpSX5RcmlHCglXN-- From nobody Wed Apr 8 15:08:01 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frRJr6yJGz6YH2k for ; Wed, 08 Apr 2026 15:08:12 +0000 (UTC) (envelope-from SRS0=3lsU=CH=quip.cz=000.fbsd@elsa.codelab.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [94.124.105.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4frRJr4WcFz3xJL; Wed, 08 Apr 2026 15:08:12 +0000 (UTC) (envelope-from SRS0=3lsU=CH=quip.cz=000.fbsd@elsa.codelab.cz) Authentication-Results: mx1.freebsd.org; none Received: from elsa.codelab.cz (localhost [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id 0E2D4D78AC; Wed, 8 Apr 2026 17:08:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quip.cz; s=private; t=1775660884; bh=qShZSXfbvbnt4hhbafh1OAaGm9zWfq4rlyUBH13qECE=; h=Date:Subject:To:References:Cc:From:In-Reply-To; b=2EhSwtkVoOgdzmf34AwwHYQqWscfg8iAunzgDxnDqGKStG2ICsXb1L4LfBcnTLZLQ ii2lNpROFwILZh/opXQ+gXmGBIU3Q9rrHE1zbDRyLRdyed7Vg8qw5w4dWx+ny9BH80 tlSOINogtjD0U5XULRlOWWqPwVuDZ7XXJ3N8suTM= Received: from [192.168.145.49] (ip-78-102-30-65.bb.vodafone.cz [78.102.30.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id 42C27D789B; Wed, 8 Apr 2026 17:08:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quip.cz; s=private; t=1775660883; bh=qShZSXfbvbnt4hhbafh1OAaGm9zWfq4rlyUBH13qECE=; h=Date:Subject:To:References:Cc:From:In-Reply-To; b=Wnb2kucVBcOjHoo43MZe+BdDameTH9iQPAHCTp6FLQaMAO1rpkyW/lrT4P7v3v5wB HSXo9S3Pm9Qkep6UtS70JwTKcn5HNGOST990BVxOK0m1VZi1fi9y9ddBEckMfarrZN PeQ3eLjYB6uJSi1QwjBSwLbHi3yyhG8gMlnWjfDc= Message-ID: <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz> Date: Wed, 8 Apr 2026 17:08:01 +0200 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive To: net@freebsd.org References: Content-Language: cs-Cestina Cc: ivy@freebsd.org From: Miroslav Lachman <000.fbsd@quip.cz> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:42000, ipnet:94.124.104.0/21, country:CZ] X-Rspamd-Queue-Id: 4frRJr4WcFz3xJL X-Spamd-Bar: ---- On 08/04/2026 16:38, Lexi Winter wrote: > hello, > > i'm using FreeBSD main: > > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 UTC 2026 > root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC64 [..] > vtnet0: flags=1008843 metric 0 mtu 1500 > options=cc00ba > ether 52:54:00:12:34:56 > inet6 fe80::2%vtnet0 prefixlen 64 scopeid 0x1 > media: Ethernet autoselect (10Gbase-T ) > status: active > nd6 options=821 > 15:34:39.106898 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo request, id 49664, seq 3, length 64 > 15:34:40.106951 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo request, id 49664, seq 4, length 64 > > but these packets never arrive on the guest; tcpdump shows nothing. > > however, 'netstat -in' shows that the packets *are* arriving on the guest, > since Ipkts increments for each ICMP packet. it seems like they're just > getting lost somewhere in the network stack. (Ierrs/Oerrs is zero.) > > does anyone have any ideas what might be causing this? Can you try disabling rxcsum / txcsum? (add -rxcsum -txcsum to ifconfig_vtnet0 in rc.conf) I had similar problem in the past on KVM hosted FreeBSD guest and this solved the problem for me. Kind regards Miroslav Lachman From nobody Wed Apr 8 15:13:15 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frRQk61njz6YHFB for ; Wed, 08 Apr 2026 15:13:18 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frRQk3v2cz40YQ for ; Wed, 08 Apr 2026 15:13:18 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775661198; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6GTRnc1SdQyvsLl8CG+ETGLGfiMrwOmq7DggpCLsAtY=; b=tQMnQogUR3zxQIZuJ8n3vlq3cTYAzFFheaSWkZqXB6DuMZWljbEQNvYjqLsVqZQ0gd+PB8 pH+AVSN+5dYFXPvbf1kvzxagn3WfyDzEcLKhQVsBMMoapbpNViORixEIhTmAy9SeKMFCr/ 3GR3nQWaycFKybQtKdtSqY2Q4ja/FJBgptyBqvHQY/zx1oaU1Qcwl8vO32Kky6c0Y6JK55 l/Z+8fpznU1Rpsvol9TAYgHzVuulkZyh2D8EwzuL0/KcjKizmfxZ9BW8cy9k2lC8eU/31K WTzhtuV3qG0AsNDfIlzoVqUCWDXjQ0ELmsiIJLsXsuJZ9YSHL26vnv2KatYV3g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775661198; a=rsa-sha256; cv=none; b=YKFkPhMl0/QHSCcyYq+U8vqcPTJe/apPutrEjpxO8aOID1EY/1xwufbjoGv1rjfvGeo+mz p0XiK6atGv/NpQ+vA36DAg7IWB+ndMWjeCb2J+FA56NwyABDSWKHLk4R7XFYUx7RYRl2hP UYdbVlR1OHgHcVOavuSCpg2aIulJjffXVjo9hiAz18m+VD9sA/NcFDmFJI6eorHnHjucOU Oh4QTYNhPkKfc0E3Y8Mc1KqXsLg6JL+/0m6cQ0Vbxb8vb4Du+VElmcapcxyl+NutK/q9Us YcARCy41UQnOSYucmilGthn5yAye/hNUtBFi+wcAUr7l0R6+sbTZMXF7gvrgVw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775661198; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6GTRnc1SdQyvsLl8CG+ETGLGfiMrwOmq7DggpCLsAtY=; b=Rx6fWOlaew5vSNAXt8Ws3UToDSrfxhX2uMhtmViY8y/fPhK2s8WkvEdJbd8TQOhGj8tB1e OXHg79X+r+vGs3T9R0quJ5dcVrXe9WxPtU7fSI4udz1an7xH9QhDNQ2IDZYVjQvb26evyY UIUiYclEVwoB4FlXRrUB2JvllVUoYGw55lwAy+BXBDENLe/lXvIYpaNVCZuoig0QixBWen CEGxGcLmn/vCdVaUpHfA1R/Oz4EzM8oQ/hn0ha09WaGkrh5NV27yKCnicQU05amIxeMhr8 kYIK9o5Y+677Ti3WyvqC05pyOuyso20YSoHZ3OamjAu4TfIMTrn2M8uJ32OSZg== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4frRQk1T50z1kK for ; Wed, 08 Apr 2026 15:13:18 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Wed, 8 Apr 2026 16:13:15 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Bzel1IFdGMHykBft" Content-Disposition: inline In-Reply-To: <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz> --Bzel1IFdGMHykBft Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable hello, Miroslav Lachman wrote in <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz>: > On 08/04/2026 16:38, Lexi Winter wrote: > > vtnet0: flags=3D1008843 metric 0 mtu 1500 >=20 > Can you try disabling rxcsum / txcsum? (add -rxcsum -txcsum to > ifconfig_vtnet0 in rc.conf) > I had similar problem in the past on KVM hosted FreeBSD guest and this > solved the problem for me. unfortunately i tried disabling tx and rx csum, LRO, and TSO, and this made no difference (you can see above that those flags are not set on vtnet0). but i did notice a new oddity: even for network traffic that works, like ping to fe80::2 or an IPv4 ping, the traffic doesn't show in tcpdump. this is not the case on amd64 (main dc752c26b7e5) where tcpdump works fine on vtnet(4). so possibly there are two separate issues here. i'm currently installing a ppc64le guest, just in case this is an issue with endian translation on the Linux side. (the host is ppc64le.) --Bzel1IFdGMHykBft Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadZwiAAKCRD1nT63mIK/ YHJnAQD7LRDl7v1I0Zr26GLrRBVe4Q1c70tVTcUC4HgD4vG8fQD+NCQVS1CSvIXk Em9U6OPlVFF9afXKp8sbRZOoU3yTgAA= =dHDD -----END PGP SIGNATURE----- --Bzel1IFdGMHykBft-- From nobody Wed Apr 8 15:31:53 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frRrR0J9Nz6YJhp for ; Wed, 08 Apr 2026 15:32:07 +0000 (UTC) (envelope-from zlei@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frRrQ25zwz43L3; 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boundary="Apple-Mail=_CD540EA1-41DD-46EB-972D-B114ED7AEB3C"; protocol="application/pgp-signature"; micalg=pgp-sha512 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.10\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Zhenlei Huang In-Reply-To: Date: Wed, 8 Apr 2026 23:31:53 +0800 Cc: net@freebsd.org Message-Id: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> References: To: Lexi Winter X-Mailer: Apple Mail (2.3696.120.41.1.10) --Apple-Mail=_CD540EA1-41DD-46EB-972D-B114ED7AEB3C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Apr 8, 2026, at 10:38 PM, Lexi Winter wrote: >=20 > hello, >=20 > i'm using FreeBSD main: >=20 > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 = UTC 2026 > = root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERI= C64 >=20 > as a qemu (KVM) guest on a Linux host: >=20 > Linux 6.18.21-0-lts #1-Alpine SMP 2026-04-07 10:34:29 ppc64le >=20 > on the Linux side, qemu is configured to provide a tap interface to = the > guest: >=20 > qemu-system-ppc64 \ > -smp cpus=3D176,sockets=3D2,cores=3D22,threads=3D4 \ > -accel kvm -M pseries -m 8g -nographic -serial mon:stdio \ > -drive file=3D/vm/ppc64-main/root.img,format=3Draw,if=3Dvirtio \ > -netdev tap,id=3Dnet0,ifname=3Dvm-ppc64-main,script=3Dno,downscrip= t=3Dno \ > -device virtio-net-pci,netdev=3Dnet0 >=20 > the tap interface looks fine: >=20 > 10: vm-ppc64-main: mtu 1500 qdisc = pfifo_fast state UP group default qlen 1000 > link/ether ae:dc:d8:39:be:fa brd ff:ff:ff:ff:ff:ff > inet6 fe80::acdc:d8ff:fe39:befa/64 scope link proto kernel_ll > valid_lft forever preferred_lft forever > inet6 fe80::1/64 scope link > valid_lft forever preferred_lft forever >=20 > on the FreeBSD side, the vtnet interface also looks fine: >=20 > vtnet0: flags=3D1008843= metric 0 mtu 1500 > = options=3Dcc00ba > ether 52:54:00:12:34:56 > inet6 fe80::2%vtnet0 prefixlen 64 scopeid 0x1 > media: Ethernet autoselect (10Gbase-T ) > status: active > nd6 options=3D821 >=20 > on the host, i can ping fe80::2%vm-ppc64-main: >=20 > PING fe80::2%vm-ppc64-main (fe80::2%10): 56 data bytes > 64 bytes from fe80::2: seq=3D0 ttl=3D64 time=3D14.833 ms > 64 bytes from fe80::2: seq=3D1 ttl=3D64 time=3D12.524 ms So the traffic with link-local addresses looks good. >=20 > then i configured an IP address on lo0 on the guest: >=20 > lo0: flags=3D1008049 metric 0 = mtu 16384 > options=3D680003= > inet 127.0.0.1 netmask 0xff000000 > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 > inet6 fd00:0:0:1::b prefixlen 128 > groups: lo > nd6 options=3D21 >=20 > a route exists for this on the host: >=20 > fd00:0:0:1::b via fe80::2 dev vm-ppc64-main proto bird metric 32 pref = medium Just to confirm, do you have a reverse route on the guest ? >=20 > when trying to ping this address, on the host, i can see ICMP packets = leaving > the tap interface: >=20 > 15:34:39.106898 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo = request, id 49664, seq 3, length 64 > 15:34:40.106951 IP6 fd00:0:0:1::12 > fd00:0:0:1::b: ICMP6, echo = request, id 49664, seq 4, length 64 >=20 > but these packets never arrive on the guest; tcpdump shows nothing. >=20 > however, 'netstat -in' shows that the packets *are* arriving on the = guest, > since Ipkts increments for each ICMP packet. it seems like they're = just > getting lost somewhere in the network stack. (Ierrs/Oerrs is zero.) That puzzled me a bit. If the net stack sees the arriving packets, then = tcpdump shall intercept them correctly. >=20 > does anyone have any ideas what might be causing this? Does `netstat -sp ip6` and `netstat -sp icmp6` show anything unusual ? Best regards, Zhenlei --Apple-Mail=_CD540EA1-41DD-46EB-972D-B114ED7AEB3C Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQRj28YmNowGX1isJg7GJJ6Jgbd0XwUCadZ06V8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0NjNE QkM2MjYzNjhDMDY1RjU4QUMyNjBFQzYyNDlFODk4MUI3NzQ1RgAKCRDGJJ6Jgbd0 Xz7qAP9QZVFG6HGgNQ9OybIg0DwAvn5dehsRolkTJ6d5tthWuwD/QeoexfmqSWHW SdB65xIe44dZQ/oy8GMU4s0PhOpeEQA= =APpb -----END PGP SIGNATURE----- --Apple-Mail=_CD540EA1-41DD-46EB-972D-B114ED7AEB3C-- From nobody Wed Apr 8 15:39:27 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frS106KCsz6YKCc for ; Wed, 08 Apr 2026 15:39:32 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frS105CFpz45Lk for ; Wed, 08 Apr 2026 15:39:32 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775662772; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=RRBChFTiBCjQTQhkb5vuFC5Tu4t2b1MY1M2NHD0ASb8=; b=X5RXH+BeKiu9mO66pdvbTFXswMCoYIF6Sdy8kiYKSpTh/LoM7JEtFAiENZ8GPHs/mC//HW TszCgkvdjj7IaKdmrjuBUX9bQuBAwgOiXREkPX9ghlJg1lUTOypM7wmz1q92v+l2CxbOIG PnVbu5HDaOnePyRTDaNACWRh1TXXET73fzF+1OKVx6jcd/tt2H7vOZpsFQ483aWQK65mg4 amYULRhUp8WbYKtBNo2GExzp1n/9ksRnvbyyFrsxGR+YMBS+CxRyjvSLwJ6Fz49n8R76DR N2koSVQLAOd8nxxSoqqybvXMqxCG8N9jrZBWmjTwJTUNFChrjihfXQK4Rs4+uA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775662772; a=rsa-sha256; cv=none; b=FLbT6MYJ3Mor3HTRbwbEquJFH/8b+cnOl66YkrK7vVY4nUX1qBDlmo82gepD7dp3L2Q+S3 UdalZJjWyPj61sKkj2Yny9xOkPbfIb8Jd3C5nCbUdlzrPFGFMpai3djGGx/k7bc+jJ3ZbC uXiFdTSNhTDv8vJeC1uVV5c06pHmr5rElJQIPeBq+SSvTNeZ6SjzZUXahKpsBQC9aR4eHw 4cS1qp5XB1VoBr/Fd7dfYQ7nXPalO4b8n8ZQib2mcQh/khsmeueTlCZmbcRyX66Yl2L+31 Z0yll7GVKK0ySKVazMiSYL/g/3/lv5keNbSwIcmOsoDS+hghDSJFGPJS/mfc9Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775662772; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=RRBChFTiBCjQTQhkb5vuFC5Tu4t2b1MY1M2NHD0ASb8=; b=lWzx/NXP5ltI4Bip51YZyImPSar3KHZsEdpXsYBtjNsvCbkbgeUXgIGh1vU4Z/wxqB9Lw5 PtDvE7tJTyKqxcNjkbcTy6ATx/EXqVYG14C3QZCxOgBpNQl+OpYlx3RNakTJ+Be5wrHpGY nsnD4ZGJJqYJMO56Jfe+PMJi5a4f9ye7UQU7v5UyH225YEc+Afod0tTWggl8oI0kWjW5YX YyEOBea2XNKx/jdB2XLJkisJBcrXl7ipNBzu57Hs8OzcAUahnPItr1N5XTX7NkmeVWDSOb 51R3RWChDMQIzLLEEHOp5dOsaMmOlBwaS5XCeRLN610Tq5O9lONUtzz3726u9g== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4frS1022tkz30G for ; Wed, 08 Apr 2026 15:39:32 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Wed, 8 Apr 2026 16:39:27 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="yFpjVRScZsmC9w5k" Content-Disposition: inline In-Reply-To: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> --yFpjVRScZsmC9w5k Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Zhenlei Huang wrote in <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org>: > > a route exists for this on the host: > >=20 > > fd00:0:0:1::b via fe80::2 dev vm-ppc64-main proto bird metric 32 pref m= edium >=20 > Just to confirm, do you have a reverse route on the guest ? no, in fact, this was the problem. after adding a default route on the guest side: # route add -inet6 default fe80::1%vtnet0 =2E.. now everything is working fine. thanks! but i failed to notice that problem because of the tcpdump issue, which is still present... > That puzzled me a bit. If the net stack sees the arriving packets, then t= cpdump shall > intercept them correctly. even with the network working, tcpdump is still not showing any packets. i have no idea what's going on here or even where to start looking. i'm currently installing a ppc64le guest on the same host to see if that behaves any differently. > Does `netstat -sp ip6` and `netstat -sp icmp6` show anything unusual ? root@ppc64-main:~ # netstat -sp ip6 ip6: 18 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (dup or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 atomic fragments 0 packets reassembled ok 15 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 20 packets sent from this host 0 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 packets that violated scope rules 0 multicast packets which we don't join Input histogram: hop by hop: 18 Mbuf statistics: 0 one mbuf 18 one ext mbuf 0 two or more ext mbuf 0 packets whose headers are not contiguous 0 tunneling packets that can't find gif 0 packets discarded because of too many headers 0 failures of source address selection source addresses on an outgoing I/F 4 addresses scope=3D0 source addresses on a non-outgoing I/F 3 addresses scope=3D0 source addresses of same scope 3 addresses scope=3D0 source addresses of a different scope 4 addresses scope=3D0 Source addresses selection rule applied: 10 first candidate t@ppc64-main:~ # netstat -sp icmp6 icmp6: 0 calls to icmp6_error 0 errors not generated in response to an icmp6 message 0 errors not generated because of rate limitation Output histogram: echo: 8 neighbor solicitation: 2 neighbor advertisement: 2 MLDv2 listener report: 2 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length 0 total packets dropped due to failed NDP resolution Input histogram: unreach: 3 time exceed: 3 echo reply: 8 neighbor solicitation: 2 neighbor advertisement: 2 Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 0 message responses generated 0 messages with too many ND options 0 messages with bad ND options 0 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 default routers overflows 0 prefix overflows 0 neighbour entries overflows 0 redirect overflows 0 messages with invalid hop limit 0 path MTU changes --yFpjVRScZsmC9w5k Content-Type: application/pgp-signature; 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Wed, 08 Apr 2026 16:05:16 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Wed, 8 Apr 2026 17:05:14 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ZfASkT8rm11SxSXG" Content-Disposition: inline In-Reply-To: --ZfASkT8rm11SxSXG Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Lexi Winter wrote in : > even with the network working, tcpdump is still not showing any packets. > i have no idea what's going on here or even where to start looking. >=20 > i'm currently installing a ppc64le guest on the same host to see if that > behaves any differently. so, i tested on ppc64le and tcpdump works fine. FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 15:25:27 UTC = 2026 root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64le/sys/GENER= IC64LE this could be some sort of endian conversion issue, but since the ppc64 networking itself works fine, i would have thought any endian problems would have surfaced before that. --ZfASkT8rm11SxSXG Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadZ8tgAKCRD1nT63mIK/ YJT1APwLeSq5AB98219Ey+E3NqOE9eZIjoQZQM78KfAwg7MuJAD/VwG3O/Q7cquw sU9u7qbBlC08ge+iXbVA3r930fO3yQo= =de3X -----END PGP SIGNATURE----- --ZfASkT8rm11SxSXG-- From nobody Wed Apr 8 16:40:10 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frTM90fM0z6YPVL for ; Wed, 08 Apr 2026 16:40:21 +0000 (UTC) (envelope-from zlei@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frTM903rbz4DnJ; 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boundary="Apple-Mail=_77A5C17C-971C-4A95-9AF2-C37B7167C3E4"; protocol="application/pgp-signature"; micalg=pgp-sha512 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3696.120.41.1.10\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Zhenlei Huang In-Reply-To: Date: Thu, 9 Apr 2026 00:40:10 +0800 Cc: net@freebsd.org Message-Id: References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> To: Lexi Winter X-Mailer: Apple Mail (2.3696.120.41.1.10) --Apple-Mail=_77A5C17C-971C-4A95-9AF2-C37B7167C3E4 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Apr 9, 2026, at 12:05 AM, Lexi Winter wrote: >=20 > Lexi Winter wrote in : >> even with the network working, tcpdump is still not showing any = packets. >> i have no idea what's going on here or even where to start looking. >>=20 >> i'm currently installing a ppc64le guest on the same host to see if = that >> behaves any differently. >=20 > so, i tested on ppc64le and tcpdump works fine. >=20 > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 15:25:27 = UTC 2026 > = root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64le/sys/GENE= RIC64LE >=20 > this could be some sort of endian conversion issue, but since the = ppc64 > networking itself works fine, i would have thought any endian problems > would have surfaced before that. Nice ! To narrow down the problem, will you please test tcpdump with other = ethernet drivers, say if_bridge(8) and / or if_epair(8) ? Surely on PPC64 ( BE ). Best regards, Zhenlei --Apple-Mail=_77A5C17C-971C-4A95-9AF2-C37B7167C3E4 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iNUEARYKAH0WIQRj28YmNowGX1isJg7GJJ6Jgbd0XwUCadaE6l8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0NjNE QkM2MjYzNjhDMDY1RjU4QUMyNjBFQzYyNDlFODk4MUI3NzQ1RgAKCRDGJJ6Jgbd0 XwDFAP9Tc90fHCGM6KwtiyBtJS5zwlGsiXQFcb3AfSYAPwJFFQD/bojLvd/ifmB5 3h068J/ciqQbn8U3aSs82P8XGcwAwQ0= =U8Ct -----END PGP SIGNATURE----- --Apple-Mail=_77A5C17C-971C-4A95-9AF2-C37B7167C3E4-- From nobody Wed Apr 8 17:37:45 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frVds6D1Mz6YTQf for ; Wed, 08 Apr 2026 17:38:09 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frVds3wZxz4Lgc; Wed, 08 Apr 2026 17:38:09 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:c8fb:f72:7c45:36e8]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 986B7721E281C; Wed, 8 Apr 2026 19:37:46 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Wed, 8 Apr 2026 19:37:45 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <988675D4-26D6-44EA-AD05-48641442195F@lurchi.franken.de> References: <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4frVds3wZxz4Lgc X-Spamd-Bar: ---- > On 8. Apr 2026, at 17:13, Lexi Winter wrote: >=20 > hello, >=20 > Miroslav Lachman wrote in = <9ceaf2c2-26cd-430f-90ee-5f820d80a8cd@quip.cz>: >> On 08/04/2026 16:38, Lexi Winter wrote: >>> vtnet0: = flags=3D1008843 metric = 0 mtu 1500 >>=20 >> Can you try disabling rxcsum / txcsum? (add -rxcsum -txcsum to >> ifconfig_vtnet0 in rc.conf) >> I had similar problem in the past on KVM hosted FreeBSD guest and = this >> solved the problem for me. >=20 > unfortunately i tried disabling tx and rx csum, LRO, and TSO, and this > made no difference (you can see above that those flags are not set on > vtnet0). I expected this. Timo and myself fixed a couple of issues related to offloading. Would be interested to fix any issues which may still exits. Best regards Michael >=20 > but i did notice a new oddity: even for network traffic that works, = like > ping to fe80::2 or an IPv4 ping, the traffic doesn't show in tcpdump. > this is not the case on amd64 (main dc752c26b7e5) where tcpdump works > fine on vtnet(4). >=20 > so possibly there are two separate issues here. i'm currently > installing a ppc64le guest, just in case this is an issue with > endian translation on the Linux side. (the host is ppc64le.) From nobody Thu Apr 9 11:39:11 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4frydJ43X5z6Z1wC for ; Thu, 09 Apr 2026 11:39:16 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4frydJ35dcz3cY6 for ; Thu, 09 Apr 2026 11:39:16 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775734756; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=gYp3yjtzwlpT3d9hcKyW0D4/Q8PjbOvB/iGobbUA+mM=; b=Arn6s8Zr0KMrICUY0Y4+1PP3TQJGZWygS8eCT0dMbDXrshMVdzcnkeeafS5aj4GuTUaaTk q8IxrJSvMOqcGyf5jL0/6uyW4nlsgeXfVyRcb14mRP16Rf0KMgwVuFqfv3J3aFDGXp49LB 9c553zOXJQdt9ALxTbi5Em7rZIcsIUkLTLSbg1E6SKNggqlwdnj6JhRFB41/SJna5alZ+s 4X3KHFRpvpGW9MFhDpYBH/p1KnnAD3Ccsm+AVzDtywDQKpuM+5IsuFPM3OtsSLIGqXcwm6 yodwMsKtwYEU4Et3cwQBto+RTzazBKwy3bezO9fsDLe/fbgalaAdMreIikCf4Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775734756; a=rsa-sha256; cv=none; b=GD+/PM16kPLyg+zVafe7xU14CvvSkwEA1bi7Q2RjGiVMOGMVTvRy7bHDsrqTykPo75Ujs5 T73hrfM34uRrI4jWHk+X9MK3LmZrkYIuUbPJ3oesUJLXTRbUdokxSk682+Cpl07H3QwV1+ 8LQG1xHtlshZ8ICjEyI8j5YS5ThEC5mtoAh8cPSLDSLe+U7K8U8s9f3PDkasVAbxVVnWWz yDttQq6zYXc3Ky79rPa+c6jbtiRQB1At9NwhPNmMpqacep0a5V5Kii2W3yiFLy52nEQTEh LiDhaUe/fwoItofUlDg44AzicuavMwhTtoKFWYYhsbKFkcvcxCZiiygSD/gz3Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775734756; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=gYp3yjtzwlpT3d9hcKyW0D4/Q8PjbOvB/iGobbUA+mM=; b=GO3HpjZrKqPR9MiIkkY9YrIbvz4RNL4GnMQEsLqp3nN23DKlMUuErJy6Eyb8kLLPEZHifm q9Sfq4TYxrWFIrVSo0pc88qQWiyNlV8PBOLQcVjrgrKz60e07JeOeeqBMgjtTIPfXuw8zX PGQ/vQIUFjyypwA+K1az65fV3wisLSoAXrb+eLU/fmq4d5bWysawcHUgAVXBeBWoQpxBar h+kP7/frj7WrKcMINt/xNI3z907ER3f0u4iMxj0Vqfc6UVBN0jkXLH7Kl7GmdX40e0K1zs MEr5U0PQwACiwdlZfSl5pu8dPI+GFwicKMQiR4BQfA9oBZydqcYiu54Ut2AAXQ== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4frydJ0DKvzkG6 for ; Thu, 09 Apr 2026 11:39:15 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Thu, 9 Apr 2026 12:39:11 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ybpq2m+ReFcm97z6" Content-Disposition: inline In-Reply-To: --ybpq2m+ReFcm97z6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Zhenlei Huang wrote in : > To narrow down the problem, will you please test tcpdump with other ethernet drivers, > say if_bridge(8) and / or if_epair(8) ? Surely on PPC64 ( BE ). i was planning to test this, but i ran into a new problem which is that we seem to have broken crypto (TLS, SSH) on ppc64 at some point, so once i work out what's going on there, i'll come back to this issue :-) --ybpq2m+ReFcm97z6 Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadeP3AAKCRD1nT63mIK/ YLKxAQCN5w2C1F+UDcC7X92Y2y608WM8SOHjDgRzOM8EYnB16AD+P/RMDAG1uh4t BMN16SigoH8p7M+/PvWd4bSqdxwhAgY= =/Dnf -----END PGP SIGNATURE----- --ybpq2m+ReFcm97z6-- From nobody Thu Apr 9 13:23:05 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs0xM2QDCz6Z8WW for ; Thu, 09 Apr 2026 13:23:19 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs0xM08jFz3rj4; Thu, 09 Apr 2026 13:23:18 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 1261A721E280D; Thu, 9 Apr 2026 15:23:06 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 15:23:05 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fs0xM08jFz3rj4 X-Spamd-Bar: ---- > On 9. Apr 2026, at 13:39, Lexi Winter wrote: >=20 > Zhenlei Huang wrote in = : >> To narrow down the problem, will you please test tcpdump with other = ethernet drivers, >> say if_bridge(8) and / or if_epair(8) ? Surely on PPC64 ( BE ). >=20 > i was planning to test this, but i ran into a new problem which is = that > we seem to have broken crypto (TLS, SSH) on ppc64 at some point, so = once > i work out what's going on there, i'll come back to this issue :-) On big endian PPC? Best regards Michael From nobody Thu Apr 9 13:27:39 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs12X00sFz6Z8dV for ; Thu, 09 Apr 2026 13:27:48 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs12W6X2yz3sWw for ; Thu, 09 Apr 2026 13:27:47 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775741267; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ysEjuvE4IH/a1VF7HaPr9qSSSupzlnLrTYSYch3/PCg=; b=YvzOz5m5xWJaOeRGlY4ajDmSQcDZC8fvrh79ZtZtIlTLOwefpsFBG8uL9Q+7LX8eN4XU0F VntE6DoRwXkhTyq3CgCKkhs/bOYdU93++/SUYMh71GTr5tJ2ylrGJvWqneci+QZjqMTNjT Zx2+la7VE3eT3UntvY5NMjEfVhtxJKng0IuV+pLRvTsXzhb685Y4YBlxbkYcvUg6qTw8QE tSH39564zmEIctTHH0wpblX2Np4BbxhPT5J94gmxLELV8otqVVKVJHg4gR1EoPhgdoIgdv YdCSh1Bi/UGG1hG1DjTHGUaNMyUrYIXo4jFYebcUapCgEpP3UXvkzWJnea295Q== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775741267; a=rsa-sha256; cv=none; b=AraHl2wd7VgwPfhrmFcjB+XHEmVM2tlnx1MEkETlNS7nwh9kn8vj1NOyhjZCeWrzlxmfLf OgoARcpWKr65PKXODDOjkzuRPLrnzMDQfUhOaRRTO0cCWgTl2UaFhfaBIBDBk16VObnvra J0nHShv9yE6Ukklz11JuBwFH5kbFF1tAZpoHm3oPbvdJ3x6eibPCvOQe1oTPD8Po+s6QYb TPlotPsIHL3wrqr8PjBRBq6TD81kESro6mxJEMTsLs2pt/BmqN+sLV5CY25wzdK4Xuxgzd MPT5k6IpVh9x6Sv/k9BRtzltU4GlRGaFHWX2f59W2ToP674JLNS3Lk34JaRScQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775741267; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=ysEjuvE4IH/a1VF7HaPr9qSSSupzlnLrTYSYch3/PCg=; b=Rk1gJ7kqoBPuIsjo1hHebCDyc2tXTL9vRlx4+hym/N36QHryelXx3Ii0W/rsR/7hUhPXY9 1GzYNT3R2PhYSiNE84wPvVgFqMFfH2VtE3rMdV3ezZIjBSbCkOL2NUX1wPYEu9Z2Kl9gjz 6i/JKqlKdIqYvxaSJfYGn1JHYIqk9GS/0+ttdSPx61kwMBF2zWy+w+EBz4b30uNSI61PBt 8FXX3dC5iZd0bFcpoNUPRsDHeGavYSpjSkxtqxfA9eKY5JTF8X4vALjV1SOgkRXIF6siCO AP4omAu+uERClILg8v7mqQ6AhD+Wj4HkcTfbS/p+cTV5r0LfvNGWZYH6DVQjgw== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fs12W3vxjzmnm for ; Thu, 09 Apr 2026 13:27:47 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Thu, 9 Apr 2026 14:27:39 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="F+lbIMM1Mry8J4Ah" Content-Disposition: inline In-Reply-To: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> --F+lbIMM1Mry8J4Ah Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Michael Tuexen wrote in <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de>: > > On 9. Apr 2026, at 13:39, Lexi Winter wrote: > > i was planning to test this, but i ran into a new problem which is that > > we seem to have broken crypto (TLS, SSH) on ppc64 at some point, so once > > i work out what's going on there, i'll come back to this issue :-) > > On big endian PPC? yes. fetch(1) is broken: root@ppc64-main:~ # fetch https://bbc.co.uk 0000000801C59010:error:0A000119:SSL routines:tls_get_more_records:decryption failed or bad record mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: 0000000801C59010:error:0A000139:SSL routines::record layer failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: as is openssl(1): root@ppc64-main:~ # openssl s_client -connect www.freebsd.org:443 Connecting to 2a02:80:0:3ffd::50:3 CONNECTED(00000003) 0000000801D1E010:error:0A000119:SSL routines:tls_get_more_records:decryption failed or bad record mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: 0000000801D1E010:error:0A000139:SSL routines::record layer failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: and sshd(8): % ssh root@fd00:0:0:1::b ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message authentication code incorrect using: FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 UTC 2026 root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC64 powerpc --F+lbIMM1Mry8J4Ah Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadepSAAKCRD1nT63mIK/ YH5gAP9kdBY4bPSPoyCwG+eRSSGn/tVQjMqHzuN7tP4UpmHxLQD/fzg1tSfWCogB o1lmXGdDAdipYsQTMIJHBFqCq23qAQI= =5BUB -----END PGP SIGNATURE----- --F+lbIMM1Mry8J4Ah-- From nobody Thu Apr 9 13:52:29 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs1bV14jXz6XxWH for ; Thu, 09 Apr 2026 13:52:54 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs1bV0Fjvz3wqR; Thu, 09 Apr 2026 13:52:54 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 0383B721E281C; Thu, 9 Apr 2026 15:52:29 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 15:52:29 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fs1bV0Fjvz3wqR X-Spamd-Bar: ---- > On 9. Apr 2026, at 15:27, Lexi Winter wrote: >=20 > Michael Tuexen wrote in = <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de>: >>> On 9. Apr 2026, at 13:39, Lexi Winter wrote: >>> i was planning to test this, but i ran into a new problem which is = that >>> we seem to have broken crypto (TLS, SSH) on ppc64 at some point, so = once >>> i work out what's going on there, i'll come back to this issue :-) >>=20 >> On big endian PPC? >=20 > yes. fetch(1) is broken: >=20 > root@ppc64-main:~ # fetch https://bbc.co.uk > 0000000801C59010:error:0A000119:SSL = routines:tls_get_more_records:decryption failed or bad record = mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: > 0000000801C59010:error:0A000139:SSL routines::record layer = failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: >=20 > as is openssl(1): >=20 > root@ppc64-main:~ # openssl s_client -connect www.freebsd.org:443 > Connecting to 2a02:80:0:3ffd::50:3 > CONNECTED(00000003) > 0000000801D1E010:error:0A000119:SSL = routines:tls_get_more_records:decryption failed or bad record = mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: > 0000000801D1E010:error:0A000139:SSL routines::record layer = failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: >=20 > and sshd(8): >=20 > % ssh root@fd00:0:0:1::b > ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message = authentication code incorrect >=20 > using: >=20 > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 = UTC 2026 > = root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERI= C64 powerpc OK, I am updating my PPC machine. Please note that the above could result from a problem in the crypto = code or in data corruption in the network stack... Best regards Michael From nobody Thu Apr 9 14:44:09 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs2kv2zrDz6Y2WN for ; Thu, 09 Apr 2026 14:44:23 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qv1-f52.google.com (mail-qv1-f52.google.com [209.85.219.52]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs2kv0HvCz442V for ; Thu, 09 Apr 2026 14:44:23 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-qv1-f52.google.com with SMTP id 6a1803df08f44-8a093c784b0so12410466d6.3 for ; Thu, 09 Apr 2026 07:44:23 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1775745862; cv=none; d=google.com; s=arc-20240605; b=cq+MtZoqjz/scORAXXQSik9/6l+5d8ko2cPvJKNmnZ6PKitkJI1G/SfQkGX9YnN55t F+UA62VhrJBLT0HLOXxgiTa07+tsx7Ux8DOhCi1+GnazgSb1K6TJ0I0iVlLtlRBGCqXo vjNLuTsYyRi1wzPvtEsTOxMGGI1d0cPd7oWbf+xy0E/d09+7yVGdXZEUFjA9K9lBrjCu Jfsj91ABTHMqi4q/g7ZfAbXM9eJf80aHvIIEkE3VTXXtAc8Zv5XffWe7fQ9+D+j4s8vF SLtFYrIIeQefozuu4msR7WtoalOaN/lJzvWBOQvv67QQ2a6Q1GqyyMB3s6pAZm+IMKhh WwAg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version; bh=9rTqfG0OSljJKraLsbzwS8SjLHdVeeZrbd7tOe3hAZI=; fh=X8Wzo2ZH2S6eHIHelUIiTDAKIFtGdgzFyY9yQJ0nuRA=; b=bEI/RxEQ+i27abiJExZ9qRC8lMrLZvqOt8vm8WGhD0k5Y4k7pmcjS6o+xgZoPuCdfn 6xyOCn8KTV3DMcNRjoIc0qMslDEt6C1bFkVrKaEdiIQEL5VuOs68ktmegI3ZXNYzmWe1 kyjQgR76YGRtIbybdFoPjHlnu2FehICwPz9FYxUVnKVHtnryVlOs/NJH89I1mDGSHyV2 LquUAbn6svAhnHdMpGvjWtLUKZ80fXWI/TNDp9znSepc/J1Rup8KlqrCq7Wo7aJwS9yN ufGpC/cjcb85KSWh8tP7Yah7fUaz9vZkq7P/mA1ZgIre56GE7eXkw6MKn3tXIXBdTqag RCCw==; darn=freebsd.org ARC-Authentication-Results: i=1; mx.google.com; arc=none X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775745862; x=1776350662; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=9rTqfG0OSljJKraLsbzwS8SjLHdVeeZrbd7tOe3hAZI=; b=A0bQnGr88Acn+YAbl7xtNry9e5X9KmGjLxXzneQLHdwieq4wh28tGnkDYDHvLr8HdO 9sh44ESiNr9VdNmwXE04+iroWUXL+QSVSVnhagufvGVnIbsPtFfqKaO376/2+Kh7aG/t jN4mgAMVZeMIYLlZnJ3Vzy9Bio5WOPHq0uRnlVS87fiax5p6TjXDqjARv1Kh6J7nZd2P /TMmAnMI7JCxYvPvI7hK+1L6e1gYRQW92P3zIaMxis0bYLvrAz7kYT9TJLrdr7Q6JbbY 5VGEJvCrhbbaRFWVlxDho8Qx3PZhgD5sP2mvMBu8d184LEjhKe7rOX3kLI+3Wyfm6Ez3 Pdwg== X-Forwarded-Encrypted: i=1; AJvYcCVwdVxwPYVwkrBSFUOGawV2rX1VktDCMl570bOlDD8EdO7a9qXaIjUGyBUFHNnNXXAcSuc=@freebsd.org X-Gm-Message-State: AOJu0YwDmU/o9hlkimzSvu9lygYsPSedT8rgh6HKmwVVK/uuZiVMuLwO BslMOFgnw3tmZU+5OP/T3xBNfsSSjt3vnYZhIJS6udqoGuO9ifBIwOK4Zi9iQtbWIjg0nc49FgQ bV3EuHk2wrBe84oMOMgjue4h2TCKy9JI= X-Gm-Gg: AeBDietObY7XCZeqv/qdcxgACSaYwF7cPVA+/JfxsR2E9VDxBDpHhELdl7IXZK/ZFCH ekvbhTy0/wBgypHRHmF0ntvp1sR2tVjVeuGWgWOjZGSVxrKCVRVip0DEurRu3fvjmPK5sKf+G4M Gec679WvF4kjppGYEfeXbwTSDwU+H+kUuudi6lBGOp11KoynMg8xC5EY1sN54bw8txDnPRAPsFR WZ+hCpYTgQnrjs169g08TvPpE3cEJayk1swWYBsBmFGj6V4bDYl8j5xp67HBG3vLMn1ITtbWk40 rlHmDUUcV0Ac4SIDiRmnSrWuHXx2SL6aCQNWSEDxaBpQha/MQ7ky0uCZrf98CXKFXY8QU9C34RK ltrK0IqIN9WS/p+WeERRkn/O4D5LP+fMuO3tek4KgqwX61nLKX+YCnr5MbQ== X-Received: by 2002:ad4:5bc3:0:b0:8a5:fcce:4c with SMTP id 6a1803df08f44-8a7043edff1mr426280616d6.27.1775745861564; Thu, 09 Apr 2026 07:44:21 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> In-Reply-To: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> From: Adrian Chadd Date: Thu, 9 Apr 2026 07:44:09 -0700 X-Gm-Features: AQROBzBXjkZkvpBq8NIiJo66yUHcJ0gjXcpLFLg7S7cBq6MVnust1rSbHPIhpNQ Message-ID: Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive To: Michael Tuexen Cc: Lexi Winter , net@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; TAGGED_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US] X-Rspamd-Queue-Id: 4fs2kv0HvCz442V X-Spamd-Bar: ---- we can repro this in a ppc64be VM using the 2026-03-30 ppc64 (be) snapshot. I'm running it on qemu on freebsd-x86 as a host. -adrian On Thu, 9 Apr 2026 at 06:53, Michael Tuexen wrote: > > > On 9. Apr 2026, at 15:27, Lexi Winter wrote: > > > > Michael Tuexen wrote in <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de>: > >>> On 9. Apr 2026, at 13:39, Lexi Winter wrote: > >>> i was planning to test this, but i ran into a new problem which is that > >>> we seem to have broken crypto (TLS, SSH) on ppc64 at some point, so once > >>> i work out what's going on there, i'll come back to this issue :-) > >> > >> On big endian PPC? > > > > yes. fetch(1) is broken: > > > > root@ppc64-main:~ # fetch https://bbc.co.uk > > 0000000801C59010:error:0A000119:SSL routines:tls_get_more_records:decryption failed or bad record mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: > > 0000000801C59010:error:0A000139:SSL routines::record layer failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: > > > > as is openssl(1): > > > > root@ppc64-main:~ # openssl s_client -connect www.freebsd.org:443 > > Connecting to 2a02:80:0:3ffd::50:3 > > CONNECTED(00000003) > > 0000000801D1E010:error:0A000119:SSL routines:tls_get_more_records:decryption failed or bad record mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: > > 0000000801D1E010:error:0A000139:SSL routines::record layer failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: > > > > and sshd(8): > > > > % ssh root@fd00:0:0:1::b > > ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message authentication code incorrect > > > > using: > > > > FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 16:07:28 UTC 2026 > > root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC64 powerpc > OK, I am updating my PPC machine. > > Please note that the above could result from a problem in the crypto code or > in data corruption in the network stack... > > Best regards > Michael > > From nobody Thu Apr 9 17:59:06 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs7422p9rz6YJX9 for ; Thu, 09 Apr 2026 17:59:30 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs7416mGjz3C80; Thu, 09 Apr 2026 17:59:29 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 2C422721E2806; Thu, 9 Apr 2026 19:59:07 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 19:59:06 +0200 Cc: Lexi Winter , net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> To: Adrian Chadd X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fs7416mGjz3C80 X-Spamd-Bar: ---- > On 9. Apr 2026, at 16:44, Adrian Chadd wrote: >=20 > we can repro this in a ppc64be VM using the 2026-03-30 ppc64 (be) = snapshot. >=20 > I'm running it on qemu on freebsd-x86 as a host. Interesting. Updating kernel and world on a bare metal Power9 system works without a problem: FreeBSD blackbird.testbed 16.0-CURRENT FreeBSD 16.0-CURRENT #1 = main-n284938-aacf448007f7: Thu Apr 9 15:54:05 CEST 2026 = root@blackbird.testbed:/usr/obj/usr/home/tuexen/freebsd-src/powerpc.powerp= c64/sys/TCP powerpc Even scp'ing a 4GB file to the machine worked. What network interface are you using in the VM? Best regards Michael >=20 >=20 >=20 > -adrian >=20 > On Thu, 9 Apr 2026 at 06:53, Michael Tuexen > wrote: >>=20 >>> On 9. Apr 2026, at 15:27, Lexi Winter wrote: >>>=20 >>> Michael Tuexen wrote in = <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de>: >>>>> On 9. Apr 2026, at 13:39, Lexi Winter wrote: >>>>> i was planning to test this, but i ran into a new problem which is = that >>>>> we seem to have broken crypto (TLS, SSH) on ppc64 at some point, = so once >>>>> i work out what's going on there, i'll come back to this issue :-) >>>>=20 >>>> On big endian PPC? >>>=20 >>> yes. fetch(1) is broken: >>>=20 >>> root@ppc64-main:~ # fetch https://bbc.co.uk >>> 0000000801C59010:error:0A000119:SSL = routines:tls_get_more_records:decryption failed or bad record = mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: >>> 0000000801C59010:error:0A000139:SSL routines::record layer = failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: >>>=20 >>> as is openssl(1): >>>=20 >>> root@ppc64-main:~ # openssl s_client -connect www.freebsd.org:443 >>> Connecting to 2a02:80:0:3ffd::50:3 >>> CONNECTED(00000003) >>> 0000000801D1E010:error:0A000119:SSL = routines:tls_get_more_records:decryption failed or bad record = mac:/usr/src/crypto/openssl/ssl/record/methods/tls_common.c:869: >>> 0000000801D1E010:error:0A000139:SSL routines::record layer = failure:/usr/src/crypto/openssl/ssl/record/rec_layer_s3.c:703: >>>=20 >>> and sshd(8): >>>=20 >>> % ssh root@fd00:0:0:1::b >>> ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message = authentication code incorrect >>>=20 >>> using: >>>=20 >>> FreeBSD 16.0-CURRENT #0 main-n284768-e6eba5076929: Mon Mar 30 = 16:07:28 UTC 2026 >>> = root@releng3.nyi.freebsd.org:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERI= C64 powerpc >> OK, I am updating my PPC machine. >>=20 >> Please note that the above could result from a problem in the crypto = code or >> in data corruption in the network stack... >>=20 >> Best regards >> Michael >>=20 >>=20 From nobody Thu Apr 9 18:09:58 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs7JB4KYNz6YKcr for ; 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Thu, 09 Apr 2026 18:10:02 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Thu, 9 Apr 2026 19:09:58 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="aN82x0PrLsLw+Zsb" Content-Disposition: inline In-Reply-To: <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> --aN82x0PrLsLw+Zsb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Michael Tuexen wrote in <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franke= n.de>: > Interesting. Updating kernel and world on a bare metal Power9 system > works without a problem: > FreeBSD blackbird.testbed 16.0-CURRENT FreeBSD 16.0-CURRENT #1 main-n2849= 38-aacf448007f7: Thu Apr 9 15:54:05 CEST 2026 root@blackbird.testbed:/= usr/obj/usr/home/tuexen/freebsd-src/powerpc.powerpc64/sys/TCP powerpc >=20 > Even scp'ing a 4GB file to the machine worked. >=20 > What network interface are you using in the VM? =20 on my system: virtio_pci1: port 0x20-0x3f mem 0x810= 30000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device 2.0 numa-= domain 0 on pci0 vtnet0: numa-domain 0 on virtio_pci1 vtnet0: Ethernet address: 52:54:00:12:34:56 vtnet0: netmap queues/slots: TX 1/256, RX 1/128 000.000056 [ 452] vtnet_netmap_attach vtnet attached txq=3D1, txd=3D2= 56 rxq=3D1, rxd=3D128 the host is: QEMU emulator version 10.1.3 Copyright (c) 2003-2025 Fabrice Bellard and the QEMU Project developers i'm currently building latest main (which takes a while) to see if that wor= ks any better. i was able to netcat over a copy of src.tar.gz (2.2GB), which decompressed fine, suggesting the basic networking functionality is okay. --aN82x0PrLsLw+Zsb Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadfrcwAKCRD1nT63mIK/ YEzsAP9hc/kRj8QAymSF2xMznVVmAf9aXe68HV8XARu86OMdXQD/eYTnU2FR5U8J cm+ZYQd042l4X3BarIWpeXEmORwfjwg= =rq4v -----END PGP SIGNATURE----- --aN82x0PrLsLw+Zsb-- From nobody Thu Apr 9 18:30:54 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs7mX5nnvz6YMHf for ; Thu, 09 Apr 2026 18:31:08 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs7mX4yBZz3Gns; Thu, 09 Apr 2026 18:31:08 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 97EE6721E281F; Thu, 9 Apr 2026 20:30:55 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 20:30:54 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <28495B68-0BD1-4372-806C-C766DBCB8410@FreeBSD.org> <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fs7mX4yBZz3Gns X-Spamd-Bar: ---- > On 9. Apr 2026, at 20:09, Lexi Winter wrote: >=20 > Michael Tuexen wrote in = <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de>: >> Interesting. Updating kernel and world on a bare metal Power9 system >> works without a problem: >> FreeBSD blackbird.testbed 16.0-CURRENT FreeBSD 16.0-CURRENT #1 = main-n284938-aacf448007f7: Thu Apr 9 15:54:05 CEST 2026 = root@blackbird.testbed:/usr/obj/usr/home/tuexen/freebsd-src/powerpc.powerp= c64/sys/TCP powerpc >>=20 >> Even scp'ing a 4GB file to the machine worked. >>=20 >> What network interface are you using in the VM? >=20 > on my system: >=20 > virtio_pci1: port 0x20-0x3f mem = 0x81030000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device = 2.0 numa-domain 0 on pci0 > vtnet0: numa-domain 0 on virtio_pci1 > vtnet0: Ethernet address: 52:54:00:12:34:56 > vtnet0: netmap queues/slots: TX 1/256, RX 1/128 > 000.000056 [ 452] vtnet_netmap_attach vtnet attached txq=3D1, = txd=3D256 rxq=3D1, rxd=3D128 I have never tried vtnet on a big endian machine. >=20 > the host is: >=20 > QEMU emulator version 10.1.3 > Copyright (c) 2003-2025 Fabrice Bellard and the QEMU Project = developers >=20 > i'm currently building latest main (which takes a while) to see if = that works > any better. >=20 > i was able to netcat over a copy of src.tar.gz (2.2GB), which = decompressed > fine, suggesting the basic networking functionality is okay. I agree. Since you can do something on the PPC machine: When on the machine, can = you ssh into it over loopback? You to test if the ssh code works locally? Best regards Michael From nobody Thu Apr 9 18:34:41 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs7rh4Y9Wz6YMxg for ; Thu, 09 Apr 2026 18:34:44 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs7rh3d15z3HvK for ; Thu, 09 Apr 2026 18:34:44 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775759684; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=sZ6Q+f+Ed+aY9l11wgd+9N9SwPUSHUNpFPB2Nu/wahk=; b=h2H6G3RBETBXCaM2N2kPKSUaGFdmMNe+48t9spHwqFAOGppbnHLQcTLG7uRIu2b8QMDhVU Xr4tS+mV5Lo7wIs4kgA9TT49l0kxF0pTEilvUodtMMyAthQQ1gKTSuIniGp7LVkoyZR/V2 OjDaRNxgZzxXDWZGrfHnGDgoP7SGdpu+lNSLFjxoIQ19bJSYDsPZnF9xS0R7oHJW+IifvW 3yS3OFprUW+YwkRTqQKZgJDEW8g3mjU/q9ez6isFcFAMByF4arBB/+NKofmGdb2+yZ0E17 BL6udzl5FsrVy2WCKY2oLh0u1gBqVweZwoFodcGuJ8GCvr+NpIcxAfSDvKJovQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775759684; a=rsa-sha256; cv=none; b=Jx/mg8WtXKSARNXZYjjqETrcAx1Mh63OQxLCMbcWf1p8QNaPE/heeqxThnHDOTn4avtzFI lwRc28VyWv3eh84GqF78PU7sSiRfwR8fkHWDOYjKFkfT5kmB+QDhSw+aL4DJGMQfuYgq4c bbD3qZiwPh3KHjsLrqCK0cIUQAydHCFjMWzwlAYLjh9lMHnJPybxU6C5Hka0EGnePZieg9 tEcxmCcAwOQxJZtqEMRpi+A8h+n8WkLS8Z0hwXZYWYvfNPxRvTBBsu0H3+5pDTEGFTavxo klj0q3LeaThp1J3o+5I2Y/JesRkKpNAH6ZPYUoo2y5Qpk9RQevYJbG+VAXPLTw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775759684; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=sZ6Q+f+Ed+aY9l11wgd+9N9SwPUSHUNpFPB2Nu/wahk=; b=bvxjGJOHCH3vo2jbmYchhQxYQ72Xos2ymILZvgZqbP+KTAoOXAEiIpf1GT5GRANfwYGXh/ zSDY156sxoOE9LoumgC0H99OemgbzvA3T6Tssp58GKTfkZc96HehWFa9TkC9ollkCRkMn1 riV3qqOjdS8WZoMHxFRPP0Iv/IDVfFlLBj1OH3Pzx8s72v/WUBeAL5NJ0bQJJDO4RS40IO 0iUtVXCee2SL2Eoh8uL6ryOPv/E3/nn33ZfjryBsBEsZDe7V9/0tB4pra4DxI7LNYlq1/e NLZHazEp7nJDF2k7CzQbWiI1t2S6dlxJL70HpOzfH8pkG3M2tago7A2MON8IHg== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fs7rh0dYhztB0 for ; Thu, 09 Apr 2026 18:34:43 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Thu, 9 Apr 2026 19:34:41 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="7Bv3sa0tfEeP7lLI" Content-Disposition: inline In-Reply-To: --7Bv3sa0tfEeP7lLI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Michael Tuexen wrote in : > > On 9. Apr 2026, at 20:09, Lexi Winter wrote: > > i was able to netcat over a copy of src.tar.gz (2.2GB), which decompres= sed > > fine, suggesting the basic networking functionality is okay. > I agree. >=20 > Since you can do something on the PPC machine: When on the machine, can y= ou ssh into it over loopback? > You to test if the ssh code works locally? yes, local ssh seems to work fine: root@ppc64-main:/src/main # ssh-keygen [...] root@ppc64-main:/src/main # cat /root/.ssh/id_ed25519.pub >>/root/.ssh/auth= orized_keys root@ppc64-main:/src/main # ssh localhost Last login: Thu Apr 9 11:39:11 2026 FreeBSD 16.0-CURRENT (GENERIC64) #0 main-n284768-e6eba5076929: Mon Mar 30 1= 6:07:28 UTC 2026 root@ppc64-main:~ # --7Bv3sa0tfEeP7lLI Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadfxPgAKCRD1nT63mIK/ YPSOAP4gty2yhHccKMJn9g7pPuwIw6eo5hngKsx/TC5oe9r6kQEA1/llt4Vx+buw yMgE03DrpmL7Evlrs8iaEjB5PfLbTwQ= =/d+8 -----END PGP SIGNATURE----- --7Bv3sa0tfEeP7lLI-- From nobody Thu Apr 9 18:41:52 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs81D5bJ3z6YNJf for ; Thu, 09 Apr 2026 18:42:08 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs81D3M9zz3JyX; Thu, 09 Apr 2026 18:42:08 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 9A5D9721E2806; Thu, 9 Apr 2026 20:41:53 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 20:41:52 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <7BC92905-1F87-48AB-9E81-2B06E9D56DB6@lurchi.franken.de> References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fs81D3M9zz3JyX X-Spamd-Bar: ---- > On 9. Apr 2026, at 20:34, Lexi Winter wrote: >=20 > Michael Tuexen wrote in = : >>> On 9. Apr 2026, at 20:09, Lexi Winter wrote: >>> i was able to netcat over a copy of src.tar.gz (2.2GB), which = decompressed >>> fine, suggesting the basic networking functionality is okay. >> I agree. >>=20 >> Since you can do something on the PPC machine: When on the machine, = can you ssh into it over loopback? >> You to test if the ssh code works locally? >=20 > yes, local ssh seems to work fine: >=20 > root@ppc64-main:/src/main # ssh-keygen > [...] > root@ppc64-main:/src/main # cat /root/.ssh/id_ed25519.pub = >>/root/.ssh/authorized_keys > root@ppc64-main:/src/main # ssh localhost > Last login: Thu Apr 9 11:39:11 2026 > FreeBSD 16.0-CURRENT (GENERIC64) #0 main-n284768-e6eba5076929: Mon Mar = 30 16:07:28 UTC 2026 > root@ppc64-main:~ # OK. I am now setting up a QEMU VM for PPC on a Raspberry Pi (arm64) = running the latest Rasbian. I am using the snapshot from March 30th. Since I am not using = the package based install, the installer fetched tarballs over the Internet. That worked. Will = report once the installation is done. Will take a while, I guess. Best regards Michael From nobody Thu Apr 9 18:45:23 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fs8521Sr2z6YNgb for ; Thu, 09 Apr 2026 18:45:26 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fs8520gfwz3Kkl for ; Thu, 09 Apr 2026 18:45:26 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775760326; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=d9H3n62CaCCdDrNtlB5lrTtdbYbmx3TovcuL6xfVJz4=; b=cDRJ/27Oq6unt9qyxcRiprA+hzEfwvDjqMl1ienKQx4AdNe0qhTEZWNVssUVLt0EV75HHa Fd32D77GpmLxfocWewYsYPhVuf2zN5bqXSrG0OubhiY04t5XoXRFeSbIEeV+K/4uHB17tJ qrCvfvkXO5iQ6zZOhJlV3Bj/x6uEoEKAmBqa+YgVxm8JrrAYwMTumPnVDJ7iQ7dgHXRLHu Zi4/kd0LTroqdSYTddPXz+quFWlIjYArFodIusqF/UN+42z6opP1dojPBUzYlZWyOOtXuz HswmjjUA6OHPkng5mkWs0nW7aSUwxZZ6YT2dCj8rvpXblWQkouOYQ1w2vowXzg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775760326; a=rsa-sha256; cv=none; b=T+pia8URzsAG97LCcopcyKZPi1O0EwN0z2YQaQP/mw/QPuEFoLeLPO6HcTdoj5XXHD8ie6 7N5jGYIdUzbZ3g9gI+ZtiVCuuCrQOsi0HRKNiDDwuBdEJTu1d09js8fcnC0KPOY31qjYSa kD2fBnDH1LpKMXMlqaHo4cMZ59WR7dOFPwK3RE9mAuuxnaYpy9NctOpdRsEPGA7e1DTrKJ nFeDLA+vSGT4sWZPy7z7Vb33o//3KdGuByGsgy/c8zUwk43wARyL4aINjfr9znOVsKkBHv CB54NwXn3NnUWIxki8ZSPP1SV5Dc9Lh3THhEvsdtv+hviDAZimC+e0RfUuYu9A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775760326; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=d9H3n62CaCCdDrNtlB5lrTtdbYbmx3TovcuL6xfVJz4=; b=k3U0LFzXRzkzkCAdjuNnDZ2zZT7h63V7UKCHHQrHR1DbNgKrmmWaWhiWBX5n7QiD7LapmI DoogV8lseiyJF59VxH8SG0i1rrJur6nUVp/Oe3asEBmCi5vmbG8yc58CsLowEqATJbrUyN gNykMvZqjr9YsQsc58xYloNNt9xKCBj0RVJAcOCnNgYItGF1UCo9zeA8/YFtZJWifLp7rN 9ZwpbH2nZSMN2D0esp61A2iBUB+DnLln0Lwa/b8aTPEdx5CQ8WzbT+oSIlUC96D8dqTmrx wWg0WW2yQUjxnrBp98MPaRpLNKwYMM3njxcAu5Te1kVd4m9c5laQgop+uxD2cA== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fs8515T25zv6K for ; Thu, 09 Apr 2026 18:45:25 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Thu, 9 Apr 2026 19:45:23 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="IMj1WPs4bG6dl731" Content-Disposition: inline In-Reply-To: --IMj1WPs4bG6dl731 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Lexi Winter wrote in : > Michael Tuexen wrote in : > > > On 9. Apr 2026, at 20:09, Lexi Winter wrote: > > > i was able to netcat over a copy of src.tar.gz (2.2GB), which decompr= essed > > > fine, suggesting the basic networking functionality is okay. > > I agree. > >=20 > > Since you can do something on the PPC machine: When on the machine, can= you ssh into it over loopback? > > You to test if the ssh code works locally? >=20 > yes, local ssh seems to work fine: >=20 > root@ppc64-main:/src/main # ssh-keygen > [...] > root@ppc64-main:/src/main # cat /root/.ssh/id_ed25519.pub >>/root/.ssh/au= thorized_keys > root@ppc64-main:/src/main # ssh localhost > Last login: Thu Apr 9 11:39:11 2026 > FreeBSD 16.0-CURRENT (GENERIC64) #0 main-n284768-e6eba5076929: Mon Mar 30= 16:07:28 UTC 2026 > root@ppc64-main:~ # some additional information... SSH *does* work from FreeBSD/amd64 main: % ssh -V OpenSSH_10.0p2, OpenSSL 3.5.5 27 Jan 2026 but it does *not* work from my Linux/amd64 desktop: % ssh -V OpenSSH_10.0p2, OpenSSL 3.5.4 30 Sep 2025 (ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message authentication code incorrect) i'll try to get a debug log and compare ssh(d) options and algorithms later today or tomorrow. --IMj1WPs4bG6dl731 Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadfzvwAKCRD1nT63mIK/ YAJQAQDv6RSPXRoXizphCcS4t1BVVRgseBFcihlwEw8DUPqDFQD/bX7mQuhYhtZ0 qFFjime1O6+9J7F3UV0Kdd16OOYIiAQ= =5d5s -----END PGP SIGNATURE----- --IMj1WPs4bG6dl731-- From nobody Thu Apr 9 21:59:06 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsDNw0nsDz6Yf5w for ; Thu, 09 Apr 2026 21:59:28 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsDNv5LQDz3gJV; Thu, 09 Apr 2026 21:59:27 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id A9DCA721E2806; Thu, 9 Apr 2026 23:59:06 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Thu, 9 Apr 2026 23:59:06 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fsDNv5LQDz3gJV X-Spamd-Bar: ---- > On 9. Apr 2026, at 20:45, Lexi Winter wrote: >=20 > Lexi Winter wrote in : >> Michael Tuexen wrote in = : >>>> On 9. Apr 2026, at 20:09, Lexi Winter wrote: >>>> i was able to netcat over a copy of src.tar.gz (2.2GB), which = decompressed >>>> fine, suggesting the basic networking functionality is okay. >>> I agree. >>>=20 >>> Since you can do something on the PPC machine: When on the machine, = can you ssh into it over loopback? >>> You to test if the ssh code works locally? >>=20 >> yes, local ssh seems to work fine: >>=20 >> root@ppc64-main:/src/main # ssh-keygen >> [...] >> root@ppc64-main:/src/main # cat /root/.ssh/id_ed25519.pub = >>/root/.ssh/authorized_keys >> root@ppc64-main:/src/main # ssh localhost >> Last login: Thu Apr 9 11:39:11 2026 >> FreeBSD 16.0-CURRENT (GENERIC64) #0 main-n284768-e6eba5076929: Mon = Mar 30 16:07:28 UTC 2026 >> root@ppc64-main:~ # >=20 > some additional information... >=20 > SSH *does* work from FreeBSD/amd64 main: >=20 > % ssh -V > OpenSSH_10.0p2, OpenSSL 3.5.5 27 Jan 2026 >=20 > but it does *not* work from my Linux/amd64 desktop: >=20 > % ssh -V > OpenSSH_10.0p2, OpenSSL 3.5.4 30 Sep 2025 >=20 > (ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message > authentication code incorrect) >=20 > i'll try to get a debug log and compare ssh(d) options and algorithms > later today or tomorrow. Interesting. I can ssh into the PPC VM. No problem. I use FreeBSD and = macOS as clients. Best regards Michael From nobody Fri Apr 10 04:20:01 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsNrG3n47z6Z9Zh for ; Fri, 10 Apr 2026 04:20:14 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qt1-f180.google.com (mail-qt1-f180.google.com [209.85.160.180]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsNrG1tyDz3L7D for ; Fri, 10 Apr 2026 04:20:14 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-qt1-f180.google.com with SMTP id d75a77b69052e-50b69bf5638so17523691cf.1 for ; Thu, 09 Apr 2026 21:20:14 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1775794813; cv=none; d=google.com; s=arc-20240605; b=iWuUriL3Lm22th3lfmSJtFk0qRU/LjRyVGuZ2PJoCtX7rLIPNzphyysHI11j0R8qxj NeBdIPSlQcX+TescZ1UyeJNXukb9XqMIrKaOiaeRiPnycpevzZRSNL0mCe4mjpmxB7Gp 3OwyiLUf+grUwXiT+64YWiJBppRo7Q8JYm2j76KuKqAiVVQGzzo6oaEyxS28x+hjDFyM COhS5TmntATSqm2n48ikj4NyDnSmtU6N9d7t+HkMpkd2HTwAMQt18DsNut3FTLq6K9wF DjaiznIjNIVcd1JuPqXWTvhZstyZwWnbPty3awET1+aBoj0efVRGZX4FMMzTGuc69gEK I/ag== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version; bh=QRagTRQj1Lc1m21bUwD9ZBjvuWDhzDf2Ui6Fkmq4uGQ=; fh=5bt0Ort1TGdD97IEcqEl+ucFDvrn8ITBivWJaKjWA04=; b=XiWJqUBMoFGbLSOqt8f4+EzUSqHBdd45TZRKUKqCd0M6gol0HTni2H10mz2LJdzMp7 0pIti2LgSyibmd9d9I9kqb0O8enYTrhqL8uHUkO2SZgG3jQ+DFsiG7wuBqK7e7KN6Sb8 ERvfxq4NPD+nnPQvKT0rC2crEFuU4s0309cq3wx1EAsI5qa2o9zLvB+iHLokcUM23Qeb FUgqMeNLs0yLEjAA2sk68THPgD6SEv/LSJMkWIgqc4YaP1XiNuCrFrkcLVouXWJC2KtU rXnYmlglzpCZTpbn8WQAME/KHjOygKwZtwtLDl6HCaXY2HLLEvmU2k1uE6BRZl2wDQAj DEKA==; darn=freebsd.org ARC-Authentication-Results: i=1; mx.google.com; arc=none X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775794813; x=1776399613; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=QRagTRQj1Lc1m21bUwD9ZBjvuWDhzDf2Ui6Fkmq4uGQ=; b=EfWKImSj8BBfFTH+6oVH/o0cfrYT5O7xfroX3ILYEJseZTBpX1YGkkRggTaMP+jJXI p8Xie4lBGgwesOJ4a5MFRA19HbIay0xTsnJFmN3yPX68S2P5LRhzaRe/CfsAuHKerzmo 0ny+Zh2C9vwAik7McFstA6a2f6w1uODXpgdH85gICa3xdetNE1veLXCI+WHqqedSO9Lt AiwNvHXqKqI6cdZGXxAhM5IQhMKrY+t1P2DHcXiY7voK1u5+7D4IxDlD6TyOu2s7Zott ztUj8xiOTH94zHCN2OsndTvlhVnyDGq+AXiAVsCyUW4r6gs906aX39AtfUgH98nVRPUh lkhQ== X-Forwarded-Encrypted: i=1; AJvYcCUN80fZnuTfUTWi+wDBI30RlHPPrU2m4XolCLVqwcogInWlfCVX5zJkAESde+lAvzRYf5E=@freebsd.org X-Gm-Message-State: AOJu0Yz1Z/gfDmsJJCRL2MyN+6tTZ3ipTOnhQ58w2DDjpldK0/GU3eXR MRRTy8VmifUt7v1PkPurZX591vdzxJgPHts/cowZth+ykiOt6hO09/7GeTUs1p4M3uEORk+WJ8w w80SbyFhpBv2Xe1pQnaMVCgigTuFu7ww= X-Gm-Gg: AeBDiesiNFGzGy2MGfF/8zXnqIuIse2KHiRrDbUsKfXWvGJuy0eoHo2XzoYmyiqRRRD +amb5x1s1JvUQ4im9j4/gVK5N+lTc/SzkhW5oEGBTih2QMc0pwnFB8wdBsyrTzwvZZt6nheCfbU XKMUbFq0Lr+GMEzwrHq7OIgWltrykKKKW0y2/iE9O35RGdUgzLJK/MoDQ4LeqMwBjZIL1YYz271 Cn0GyQ8BKlqrWNUM1MLB+wbV08qtM5iqtRLFX7CRfkV9o08iK1yGqkXnn1q+o3BT6xfvH2ccBkf XnriZHXoDk+CM4OY63IVQeyC5nivthvcKUuOtjYEfeWHSWrLRbx+Uy36XFXMBDuG6oQVn1zj07b IcsbdDVXqyJI7A35CxvUlGiJKMAsZJNBBhMIvI2ePVgyF/5x9Q3sPHpGcfQ== X-Received: by 2002:a05:622a:a9ce:20b0:50b:49d4:e54 with SMTP id d75a77b69052e-50dd5bd9be6mr21738781cf.15.1775794812956; Thu, 09 Apr 2026 21:20:12 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> In-Reply-To: <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> From: Adrian Chadd Date: Thu, 9 Apr 2026 21:20:01 -0700 X-Gm-Features: AQROBzDOD1BNkbLa1XLuPozghUcG4NsGMresViccZFGEdxaQxtJIv75gbzEq1Nc Message-ID: Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive To: Michael Tuexen Cc: Lexi Winter , net@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; TAGGED_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US] X-Rspamd-Queue-Id: 4fsNrG1tyDz3L7D X-Spamd-Bar: ---- In your ppc64 bigendian VM try doing "pkg update". All I see are SSL errors. The same 16.0 build (mar 30 snapshot) build but ppc64 little endian in QEMU VM works fine. I can reproduce it with "fetch" to https://pkg.freebsd.org/. Host: qemu-devel on x86 freebsd, -head, late march VM: 16.0 mar-30 snapshot, one ppc64le, one ppc64be -adrian From nobody Fri Apr 10 07:21:40 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsSsj5l6Qz6YCnm for ; Fri, 10 Apr 2026 07:21:45 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsSsj3t6Jz3Xh3 for ; Fri, 10 Apr 2026 07:21:45 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775805705; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=a5ZleuqIiWquyZJqij42zJnF2UXp+pUycKYNhNP7rwU=; b=YHzFPdcBSQuoZiaLRgsn4JYiq8+U6BfbEnT1FcUtwyQJwQ3NRxZt6mOkd8rLpmnunDZnVH hKGwv2YUcJ/x6IzVZysLbI8DoK+WQ1/CTr7ky2KFxaBTlISQ47C4Ep2BWR0lwqsQk6/ULB BAFlaKvmBdx6S2RyaVhBdcqTqQrDp/N2KchtIorUfugahAR257DGBrDRcGVpKw9cGcWten Ex5/cWvVydCQgjrXyA6ZAXzslcF3wKew/WeKsJUVwRPAS5cUjU05CAcUR2YzL5s/hJmnuo KkDieWNvuv+KV8WqTjeDLSsR9O1s5JokEoj6Kn31IfPF5dBK1sCsMhbE8WRIpw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775805705; a=rsa-sha256; cv=none; b=roOvv24lUCuhEcwdGglZdskkANwaU6DuVQecMxPEre2ZpBV/+vWFrhiNouzZzp2DC7+sC8 QmA0PQV8O/+9R4QQxRr/ZUaLB7cP0usTbqw5G/gIAs/FOlzvu4H8yFm8cWP3ySOj2mbir2 o9mcOm3rv4F7+BUX3N30Yqj4ak/RFxx1sSz6DEyZ75NV8ox/4E+EJqM/Mo/K9B4/2AnhXk uLQk7YrSK7wlI/8+W3efKjotBLoed1X0Z3bMewJPF5iK0OZwiputZpSe5k8jaVkTIoY1cF 24z/9tkvbBFr/yvvJA3/7shtpVg6SfsJWm1c7BWUO/sXYNQxM4qgyUp+yPpdEQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775805705; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=a5ZleuqIiWquyZJqij42zJnF2UXp+pUycKYNhNP7rwU=; b=mH6H0ZzJ5sjM4myh4NqRh0mUIQQv5KOij4g1bi5S7eh+jzyC8lyg6lhoX++GbhzttMQzpy 36QSUUChlPWxyk0pJ2TowzE735r4SDuvJfqLw7NlUpGQ0CWQbnHcE6k9sEbextSrwqwCjm fHKUPCZYtZ9zmE7CmpAXam7RcYpzoo91nIiGC186H+ANMTYWcPHCSqLAv7z5DQkcAom7vA jrqcKsmLn6u2Uv/epjG6a1p9byQiz0hj1rwoCNdRP3lrfcnN/Z6C5ucH8pK57vplLd8FZi g1AUhI3rAVI5kFc1/Q9d8YaIx1eUN029/HdKuWTU00PKeIqrvNNWmC3Qx+2+UQ== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fsSsj1pDWz1BYc for ; Fri, 10 Apr 2026 07:21:44 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Fri, 10 Apr 2026 08:21:40 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <4FD8C144-5168-4B53-8AE9-0CFF038F209F@lurchi.franken.de> <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="gEiedsGKLLkV5oQk" Content-Disposition: inline In-Reply-To: <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> --gEiedsGKLLkV5oQk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Michael Tuexen wrote in <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franke= n.de>: > > On 9. Apr 2026, at 20:45, Lexi Winter wrote: > > SSH *does* work from FreeBSD/amd64 main: > >=20 > > % ssh -V > > OpenSSH_10.0p2, OpenSSL 3.5.5 27 Jan 2026 > >=20 > > but it does *not* work from my Linux/amd64 desktop: > >=20 > > % ssh -V > > OpenSSH_10.0p2, OpenSSL 3.5.4 30 Sep 2025 > > Interesting. I can ssh into the PPC VM. No problem. I use FreeBSD and mac= OS as clients. the problem seems to be due to choice of cipher: % ssh -oCiphers=3Daes256-gcm@openssh.com root@ppc64-main.vm.le-fay.org Fssh_ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message a= uthentication code incorrect % ssh -oCiphers=3Dchacha20-poly1305@openssh.com root@ppc64-main.vm.le-fay.o= rg Last login: Fri Apr 10 08:17:20 2026 from tansy.le-fay.org if AES is broken, that would also explain why TLS doesn't work. unfortunately while trying to rebuild world i ran into an unrelated panic[0], so i'll need to find a workaround for that before i can test more. [0] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D294369 --gEiedsGKLLkV5oQk Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadilAQAKCRD1nT63mIK/ YEk+AQCGAeH5ZOR1iW4EBnoe8T9oW2ITmSfiZOYtItXTcr8kaQEAyKlg+3UWhJ0E 5SVby8zPEMtMo6gjBWIK59HqgAE5xQI= =86+q -----END PGP SIGNATURE----- --gEiedsGKLLkV5oQk-- From nobody Fri Apr 10 09:24:26 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsWbQ5xtzz6YMyp for ; Fri, 10 Apr 2026 09:24:34 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsWbQ5KHSz3m5B for ; Fri, 10 Apr 2026 09:24:34 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775813074; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=f14UmhRGA2SJiqskVtxLte6y1fHvTs4zAdVU9MMIh9Y=; b=jiHK8mT4XIO77dsFINMap29HWxrQJBodjvKKq6QnFmsRTZpixH17CX2TUxGEyK6I7IfaZ1 0fIquAyJrb5SKhTbZKO7R5D9rJ++mtYPF8aKzHsABQUzPuWODJlyrfBXGIXitxR4oHx4xj krQp3wPNq7z9g0A/PE1X7cXYWtFCFKZbgMr+15pY6wiGTmGCDJrO+vndU8MjiE+5V88IOX p97SccuYhP4BweUhMIsWRiUXxV19Uo/Mpf8ci6EcT74KmbDYx7TWaTwQI4tdbqNYwfytci eOKCMxR/pCZpQPOszlIhWyFA6QvjVaWGRBq9WJ01jNk0lCuT6vRsI7Xy2m0vOA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775813074; a=rsa-sha256; cv=none; b=szmP2dP/1dfgUXcu28S29nxTNTqriBZB9VeBqV5uKJ1749YFjMn2oRZif77TD9Pe4X0o1u WCdLwB2i7ici/7LtSRjIsLjam6hdB7nJLFV3aywFIZ+f7l0rel6tdONK2e9VQw+xLGTDkv qKZqmKs0PInx7Zq8TL67se54yenVCcZ0Ws+eNtJldTHvvrMkI+3gsJLfAJ+qwcz3f20t7D Sq64bJMuNIzOxwAZylm10aJlBnoMPBNs/owavASK+Im734vXL+I/ekWELjZwdN9CgOM0U1 eb+2xcR+2fMdzwC7rgYoo7HQBmUK0vTSTZ7wRTdzBihAaiPp3amsnOxfbt2W1Q== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775813074; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=f14UmhRGA2SJiqskVtxLte6y1fHvTs4zAdVU9MMIh9Y=; b=ntDgsRCFGZeUcp3bYvzV06beTi13J5zd7jbd8u7e7dlPsj1nWqhP6R7zKyfVdG4n2Z0fzV JTAOibmFdqC9vMFsLSmbzEpC8YgzctsDc9S+UDB1Pv4YqxAyDwry6UiTElWVhsPNbUV+dc 0wOjZGHYdn/g/YqipH3PZNOCOc6F/R/M7IgICfVeNdHu0jAcx1yN+aYzG81oxnvlVzt1h5 Z6fqiF3nnY5C9qbGiDXU4T2uPkwuln2shGMwtMhcKIRzZZPdjKiQfM1aT1tfrRA/FxEMYa 17AH3dmc+WTNjvXQgXr2sV3Xn3N+WV6Y8IqtfmkIJHWZIrU9g2UJHKFlVnAK1Q== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fsWbQ2TcZzvN for ; Fri, 10 Apr 2026 09:24:34 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Fri, 10 Apr 2026 10:24:26 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="3wpZyxONdjgHv5GA" Content-Disposition: inline In-Reply-To: --3wpZyxONdjgHv5GA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Lexi Winter wrote in : > unfortunately while trying to rebuild world i ran into an unrelated > panic[0], so i'll need to find a workaround for that before i can > test more. >=20 > [0] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D294369 i attempted to update to latest main to see if this helped debug the ZFS issue, and ran into a new issue with vtnet, which is that it now doesn't attach at all: pci0: on pcib0 virtio_pci0: port 0x20-0x3f mem 0x810= 30000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device 2.0 numa-= domain 0 on pci0 vtnet0: numa-domain 0 on virtio_pci0 vtnet0: Invalid max_virtqueue_pairs value: 65535. Multiqueue feature disabl= ed. virtio_pci0: virtqueue 1 (vtnet0-tx0) does not exist (size is zero) virtio_pci0: cannot allocate virtqueue 1: 19 vtnet0: cannot allocate virtqueues device_attach: vtnet0 attach returned 19 this must have broken recently (the March 30 snapshot works) so i'll try to bisect this. --3wpZyxONdjgHv5GA Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadjBxgAKCRD1nT63mIK/ YMywAP9OiIUhIDeO3PtivAWKmVtguAnznIxJHUgLj27PZ+QDIwEA115lBEMVSro5 Z8W7V6DFF36yrBp8i+vmC9Gqsyybfwc= =ZcB1 -----END PGP SIGNATURE----- --3wpZyxONdjgHv5GA-- From nobody Fri Apr 10 09:44:27 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsX2f3ccLz6YPtw for ; Fri, 10 Apr 2026 09:44:42 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsX2f1B1Qz3sxw; Fri, 10 Apr 2026 09:44:41 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 4F7B1721E2806; Fri, 10 Apr 2026 11:44:28 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Fri, 10 Apr 2026 11:44:27 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: References: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fsX2f1B1Qz3sxw X-Spamd-Bar: ---- > On 10. Apr 2026, at 11:24, Lexi Winter wrote: >=20 > Lexi Winter wrote in : >> unfortunately while trying to rebuild world i ran into an unrelated >> panic[0], so i'll need to find a workaround for that before i can >> test more. >>=20 >> [0] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D294369 >=20 > i attempted to update to latest main to see if this helped debug the = ZFS > issue, and ran into a new issue with vtnet, which is that it now = doesn't > attach at all: >=20 > pci0: on pcib0 > virtio_pci0: port 0x20-0x3f mem = 0x81030000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device = 2.0 numa-domain 0 on pci0 > vtnet0: numa-domain 0 on virtio_pci0 > vtnet0: Invalid max_virtqueue_pairs value: 65535. Multiqueue feature = disabled. > virtio_pci0: virtqueue 1 (vtnet0-tx0) does not exist (size is zero) > virtio_pci0: cannot allocate virtqueue 1: 19 > vtnet0: cannot allocate virtqueues > device_attach: vtnet0 attach returned 19 >=20 > this must have broken recently (the March 30 snapshot works) so i'll = try to > bisect this. I guess this is related to = https://cgit.FreeBSD.org/src/commit/?id=3D0b39d72d0491c77e3e9883015b1fac46= 663c71de You can put hw.virtio.pci.transitional=3D0 in /boot/loader.conf to get the old behavior. Does that help? Best regards Michael= From nobody Fri Apr 10 09:54:13 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsXFh2qTDz6YQjZ for ; Fri, 10 Apr 2026 09:54:16 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsXFh21Kfz3vtS for ; Fri, 10 Apr 2026 09:54:16 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775814856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=INkwwOGOxTJwPh19mhWla9BciDo6dKGKbLdMAj0cwAw=; b=AwlUZTHVEhaBHNreo8GPwMWEXbeO1PkTrDnLDH1JDVfUyOtt6P4I7d8muAMbi5KknUEnQI s9JQ/kb87cd0cedl4wykArvNe9wtLZbpyBCni13hKAqXToYRsZ/FRdwIrHCXl8YTrXFhqF enEf+9cy4gg29Q3AKWxHhE9RvLJ32OpQRutGOGDxp2MZUqY8B300YF0/Kov7vI5Fwo/gwL 1zYG0xLtB4lkLg3R2GvnNbjqt3GH/v0GUX5JmCdTNLpRb3U+4RTNRavcNxfKB3mogebxez gJq7e/ufFGS7W9W1cXGGACwNkgumk1kGRPi2NpvhLIRjiVeE0GPDsNzfovEYIg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775814856; a=rsa-sha256; cv=none; b=oHFgiMNXyvM0yuYXUuw074iI+p2KoKR6v1guqg7oEbRGcQic4DYTa/gXYxRJlNJrmGO38D YO3Old2btLcekF1wYpAPYkuARJyIMNXZZo8XzWTDSlozf32Cbehv1Ol8WSWTYj59UxkVaB d8+yDizO6OCR9pCHVnKW/D8LkyK6u455oujRTvpy3mk4mjPKBff+l0/BkOuH6IGeNo5ZF9 ejT2KECtiI89XzrXXPnqI/Q1uf5CTGvK9mZ+H4vm0JtDzXNGmoRYx8LgeHh6LCglXrevXW vjntg9Z0HEZASyFoQYThdEgIhf85rxqvYY6QTztnzN4pdf9biO7TsolSHt/Xlw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775814856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=INkwwOGOxTJwPh19mhWla9BciDo6dKGKbLdMAj0cwAw=; b=na98KkG7IqLl/dJiRKZ6ClLQlLFE03I5IFnUrGV1epg/SG3R5UsGNa/q8LTOox1Lfjt/ce Rv5yaLYoxo8e5GXt8KKVJH062oaaCrLN7+Qsm/VwjAIc7DZQnHb09CwLouy+01NGmaCIpb Y6/MW+AoPmIxWuP5s6T2vZM4rBw926/NMUiDUTTDBcRysNq8f3kdPlkfCPhWmPMA+ZyrQq PEtzAMlIa/jA1c0NuR+X8PhyfCHRXNILu6kLHzaB+QXys1T/WT9GSqrPDubM3t6feu4R97 ANlHhqLSnXqtnaOY+qOsBIxRzyjDXLf60DErTCIYxxlp5xTxp7hySNoJFVZkFA== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fsXFg6FKDz1YY for ; Fri, 10 Apr 2026 09:54:15 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Fri, 10 Apr 2026 10:54:13 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="tmenD5qmSHkTyI7G" Content-Disposition: inline In-Reply-To: --tmenD5qmSHkTyI7G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Michael Tuexen wrote in : > > On 10. Apr 2026, at 11:24, Lexi Winter wrote: > > pci0: on pcib0 > > virtio_pci0: port 0x20-0x3f mem 0= x81030000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device 2.0 n= uma-domain 0 on pci0 > > vtnet0: numa-domain 0 on virtio_pci0 > > vtnet0: Invalid max_virtqueue_pairs value: 65535. Multiqueue feature di= sabled. > > virtio_pci0: virtqueue 1 (vtnet0-tx0) does not exist (size is zero) > > virtio_pci0: cannot allocate virtqueue 1: 19 > > vtnet0: cannot allocate virtqueues > > device_attach: vtnet0 attach returned 19 >=20 > I guess this is related to > https://cgit.FreeBSD.org/src/commit/?id=3D0b39d72d0491c77e3e9883015b1fac4= 6663c71de > You can put > hw.virtio.pci.transitional=3D0 > in /boot/loader.conf to get the old behavior. Does that help? yes, this seems to fix the new vtnet issue. now i'll go back to getting world to build so i can do some OpenSSL tests :-) thanks. --tmenD5qmSHkTyI7G Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadjIwQAKCRD1nT63mIK/ YK3hAP427z69ckCTduUFk6ZBAZWv+8489zR1tY+7StU2ZFeN8wD/f8IEQQAdUkE/ P6+EUTuMIAlS22Hb/CG2ZkPpSM4ONgM= =2IhS -----END PGP SIGNATURE----- --tmenD5qmSHkTyI7G-- From nobody Fri Apr 10 09:59:07 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsXMY72VLz6YQvG for ; Fri, 10 Apr 2026 09:59:21 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsXMY68Cvz3wdG; Fri, 10 Apr 2026 09:59:21 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:cc9f:cc5b:f087:1f76]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id CD520721E2806; Fri, 10 Apr 2026 11:59:08 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Fri, 10 Apr 2026 11:59:07 +0200 Cc: net@freebsd.org, =?utf-8?Q?Timo_V=C3=B6lker?= Content-Transfer-Encoding: quoted-printable Message-Id: <826EC473-EA9F-4534-B448-60DE0C5B62FC@lurchi.franken.de> References: <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fsXMY68Cvz3wdG X-Spamd-Bar: ---- > On 10. Apr 2026, at 11:54, Lexi Winter wrote: >=20 > Michael Tuexen wrote in = : >>> On 10. Apr 2026, at 11:24, Lexi Winter wrote: >>> pci0: on pcib0 >>> virtio_pci0: port 0x20-0x3f = mem 0x81030000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at = device 2.0 numa-domain 0 on pci0 >>> vtnet0: numa-domain 0 on virtio_pci0 >>> vtnet0: Invalid max_virtqueue_pairs value: 65535. Multiqueue feature = disabled. >>> virtio_pci0: virtqueue 1 (vtnet0-tx0) does not exist (size is zero) >>> virtio_pci0: cannot allocate virtqueue 1: 19 >>> vtnet0: cannot allocate virtqueues >>> device_attach: vtnet0 attach returned 19 >>=20 >> I guess this is related to >> = https://cgit.FreeBSD.org/src/commit/?id=3D0b39d72d0491c77e3e9883015b1fac46= 663c71de >> You can put >> hw.virtio.pci.transitional=3D0 >> in /boot/loader.conf to get the old behavior. Does that help? >=20 > yes, this seems to fix the new vtnet issue. now i'll go back to = getting > world to build so i can do some OpenSSL tests :-) Thanks for confirming. Timo will look into the vtnet issue. This looks = similar to a problem when running a FreeBSD guest using VirtualBox on an arm64 Mac. = Just that legacy drivers don't work, modern do work: https://github.com/VirtualBox/virtualbox/issues/569 That was one of the motivations to switch the default value. You are = using QEMU on a Linux amd64 host, right? Or are you using a ppc64 host? It would be = great if we could reproduce the problem locally. Best regards Michael >=20 > thanks. From nobody Fri Apr 10 10:04:40 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsXTl60zJz6YRRZ for ; Fri, 10 Apr 2026 10:04:43 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsXTl5Lyjz3xPy; Fri, 10 Apr 2026 10:04:43 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775815483; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=kj/G8S+WGMTW4a8OS+JKT3H79Nvtea4wE/4KgOqylDU=; b=wd8xUcQj4c47jwTQwDuQQkKMwb/lA70kpfJiTmQxJGF7M02tRtEj/lN3GEVGpXsu2iFU/L GOR30Arxk2TnH7uHEWDgtGHkPYm23uyJajNnKyPiY2luAkq4wmokYs2CoRLt7U4Q/nok4q nYSkbFd8oCeJlDx63jZeQm1VoxcJAZx6DJHGGj+m87xKCbAzQi2x9k1BgDrDf+fJkD9a3X c9bvfEmpv/4ONsaQEfSw+oG3PuwmxK/uxV+wSYbvBf1QYDDkt4GIN/ZHyo6/fOAiMiuWb5 UIbShn1MeaoXs2U6P+uichDwZPBX5DWLTdmWzxT7m1VKGNETCAXthsuWH4QmwA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775815483; a=rsa-sha256; cv=none; b=uWFhrP7ndccSRgIqL0IJd9PRUWtz7Ev214q+0YPzPHEFXIPw7PmYr48ZVjCeTo1qIK+fcA mMqi2ry9BiVJCzuH1LH8NC5/uYM2m7gmv0QcY4TMNFFV8YGvkqWk9Aqi8IBczFkXrpbU2V ItEi/wcR9ow9BNM7qNaY7HiMujiDg8B2oBoAf+SC+5WqezsigyWHJBXyCcRgFUIH9aP3x+ 2CFX71GxjcqOro22KL9K1De1iF6EUHyd8f40V1WuhjPECPcFYqLkxwtBASBNDmQlqmNl7O U5E/G3/+Ki8LhiEmb28c1Fj06sBa2WJFa2cHMjPoqIVQYwrXf8YWRYyT3BEa1A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775815483; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=kj/G8S+WGMTW4a8OS+JKT3H79Nvtea4wE/4KgOqylDU=; b=xNOfou42aJX7DkkkVblufAbnI/J7mkJFN4xLim/oSaNDkyZXEpEWdqWcYuAfauEMg+eP46 G+UcOl8mR5lnmQMli/FB2W2NQ00Khl3IRK6kGiirsc7Ah/WoLEGpuTLrCVCqxPYbIVQfWV /TOSVwnNAya1jSlctKB1ScoaOgGAb6vpOo35J+8EimhC5tRymahPO5SoA2qnKPHDGBexG7 UIuLpy2eUaEjG8c6JHVFW/VcF5DiUDv3urxCdLd9wtwnT/1gBOTCwCNhUy7UNiQk/USmlX ff4jU3uYtXUSL/l4of+EixKlybmFXTyWAD0K6JXPVFMl0DrjCBpQ4GUY2c2tGQ== Received: from amaryllis.le-fay.org (amaryllis.le-fay.org [IPv6:2a00:1098:6b:400::9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: ivy/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fsXTl1q3gz1W0; Fri, 10 Apr 2026 10:04:43 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Fri, 10 Apr 2026 11:04:40 +0100 From: Lexi Winter To: Michael Tuexen Cc: net@freebsd.org, Timo =?iso-8859-1?Q?V=F6lker?= Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: Michael Tuexen , net@freebsd.org, Timo =?iso-8859-1?Q?V=F6lker?= References: <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> <826EC473-EA9F-4534-B448-60DE0C5B62FC@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="wuiAqytgTzSusPpY" Content-Disposition: inline In-Reply-To: <826EC473-EA9F-4534-B448-60DE0C5B62FC@lurchi.franken.de> --wuiAqytgTzSusPpY Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Michael Tuexen wrote in <826EC473-EA9F-4534-B448-60DE0C5B62FC@lurchi.franken.de>: > > On 10. Apr 2026, at 11:54, Lexi Winter wrote: > > yes, this seems to fix the new vtnet issue. now i'll go back to getting > > world to build so i can do some OpenSSL tests :-) > > You are using QEMU on a Linux amd64 host, right? Or are you using a > ppc64 host? It would be great if we could reproduce the problem > locally. the host is ppc64le (guest is BE) running Linux 6.18.21, QEMU 10.1.3 with KVM (qemu-system-ppc64 -accel kvm). the full QEMU command line is: qemu-system-ppc64 -accel kvm -nographic -serial mon:stdio -smp cpus=8 -M pseries -m 8g -drive file=/vm/ppc64-main/root.img,format=raw,if=virtio -netdev tap,id=net0,ifname=vm-ppc64-main,script=no,downscript=no -device virtio-net-pci,netdev=net0 i suppose, the same QEMU command should work on amd64 if you remove '-accel kvm'. --wuiAqytgTzSusPpY Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadjLNAAKCRD1nT63mIK/ YHlJAQCBQ7JY28ddJ/PNvgSpnAExLzCMW8dAlD3jmAfjWG7NKAEA136Hdpm+whJB XdGpmsD4T4YusWTDOMs7rlQctltslgM= =aC9s -----END PGP SIGNATURE----- --wuiAqytgTzSusPpY-- From nobody Fri Apr 10 10:10:25 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsXcN2S23z6YRmS for ; Fri, 10 Apr 2026 10:10:28 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsXcN1hXpz3ydq; Fri, 10 Apr 2026 10:10:28 +0000 (UTC) (envelope-from truckman@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775815828; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=W97HBTtjbuNKCgxDwzFEGwb2wFxuIJD85BE8MOiZT/U=; b=MLfmbebmS/DJND6JOBT7RoRaYtktPZA22fvsRdjP4ON4OdOQDrW0mYhIfDNlQSkzp0Nz79 875xDkkV+83SVInIOJpX/i3iVzF48ok8LYb98u1TiB7KX0NlSFfM9ybPHqxug+R9ehZRdr x6UjKB8ZwNE2sT8cjj2OXMYjTxXqqcl+lrHXzE2vvKsskc28R0F2uJyBxCvzdjmoK0fcA5 1cmcQc6NOYxbiY2rILSuxsuk3nnaoeeI8iuReRfwvxE4OfoVj3H2s40o59v5Eu6thEArdo sDxIfbouGlHlEl9reqpPzsFRIvZEGIJ9XsbefJkiivOAU84QNk0pv2d/UjT3Pw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1775815828; a=rsa-sha256; cv=none; b=xA7k9a8flloojy36jx7yCUm3SaiABHfW/Q99SzyVb4CxgQ51+qHp8jBRMGiiahRhwZLI6i 56GtLX+OVQrymNfCZzV8Zdcw+unagW0fAtPyUgZ4ZkVLtlp+xa8qYQO5Z7E7V2xOwFZ7PJ mgozlaD56hW0qZya8clZMcP1QdyOMdB7xID9k7NrkDCDgFPxPNru3pl+/4PdR+N8vYFzZ1 VwCzXkmKYdiEPrXn3N7pvHCU9Mh4VfI0LH7OG/vfA1wYpfaLIwxDzbpprjnd6+QkRhe+qI KaPAQVmdr5kXjkBzLpByXeBKB6FAhGSrA2roBnyuywmh5bz5TJZpe1raZtMebA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775815828; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=W97HBTtjbuNKCgxDwzFEGwb2wFxuIJD85BE8MOiZT/U=; b=nR+29Od0U8nxqQvxq5Iy6rmlZN/OuG0wQ43nr4GPhyC8qUFAtLfFZqY9dMVLF1pX3NPLkC 4YF787OvF+c72ZVr6wEA9tqGnU9+u6YY7JPosEHxuMDpnAgy/gMT7MFx5wil0U0i2hP0+N EnITD2PCjucIPookF5kNmwdRVs0qZW2/0Iw3VCu4S55ob/TCg4qRD+hETj2iLwDU2RnO8S JViVQqul954KC9N6HVZ51uLOhc/tVP62dwngHMAE4G4esLIW0DStc/DOqz09Svw4y3Ca40 10EyxlnCnhW1fb4ykmDwaOoAVfgODxZvLpk5L3r3wn/lpYKNwpZNHefQY3ey7Q== Received: from mousie.catspoiler.org (unknown [76.212.85.177]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: truckman) by smtp.freebsd.org (Postfix) with ESMTPSA id 4fsXcM5172z1pT; Fri, 10 Apr 2026 10:10:27 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Date: Fri, 10 Apr 2026 03:10:25 -0700 (PDT) From: Don Lewis Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive To: Lexi Winter cc: net@freebsd.org In-Reply-To: Message-ID: References: <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=us-ascii Content-Disposition: INLINE On 10 Apr, Lexi Winter wrote: > Michael Tuexen wrote in : >> > On 10. Apr 2026, at 11:24, Lexi Winter wrote: >> > pci0: on pcib0 >> > virtio_pci0: port 0x20-0x3f mem 0x81030000-0x81030fff,0x210000000000-0x210000003fff irq 4610 at device 2.0 numa-domain 0 on pci0 >> > vtnet0: numa-domain 0 on virtio_pci0 >> > vtnet0: Invalid max_virtqueue_pairs value: 65535. Multiqueue feature disabled. >> > virtio_pci0: virtqueue 1 (vtnet0-tx0) does not exist (size is zero) >> > virtio_pci0: cannot allocate virtqueue 1: 19 >> > vtnet0: cannot allocate virtqueues >> > device_attach: vtnet0 attach returned 19 >> >> I guess this is related to >> https://cgit.FreeBSD.org/src/commit/?id=0b39d72d0491c77e3e9883015b1fac46663c71de >> You can put >> hw.virtio.pci.transitional=0 >> in /boot/loader.conf to get the old behavior. Does that help? > > yes, this seems to fix the new vtnet issue. now i'll go back to getting > world to build so i can do some OpenSSL tests :-) There's a hole in the bucket, dear Liza, dear Liza, There's a hole in the bucket, dear Liza, There's a hole. Then fix it dear Henry, dear Henry, dear Henry, Then fix it dear Henry, dear Henry, fix it. With what should I fix it, dear Liza, dear Liza, With what should I fix it, dear Liza, with what? With a straw, dear Henry, dear Henry, dear Henry, With a straw, dear Henry, dear Henry, with a straw. But the straw is too long, dear Liza, dear Liza, The straw is too long, dear Liza, too long. Then cut it dear Henry, dear Henry, dear Henry, Then cut it dear Henry, dear Henry, cut it! With what shall I cut it, dear Liza, dear Liza, With what shall I cut it, dear Liza, with what? With an ax, dear Henry, dear Henry, dear Henry, With an ax, dear Henry, an ax. But the ax is too dull, dear Liza, dear Liza, The ax is too dull, dear Liza, too dull. Then, sharpen it, dear Henry, dear Henry, dear Henry, Then sharpen it dear Henry, dear Henry, sharpen it! With what should I sharpen it, dear Liza, dear Liza, With what should I sharpen, dear Liza, with what? With a stone, dear Henry, dear Henry, dear Henry, With a stone, dear Henry, dear Henry, a stone. But the stone is too dry, dear Liza, dear Liza, The stone is too dry, dear Liza, too dry. Then wet it, dear Henry, dear Henry, dear Henry, Then wet it dear Henry, dear Henry, wet it. With what should I wet it, dear Liza, dear Liza, With what should I wet it, dear Liza, with what? With water, dear Henry, dear Henry, dear Henry, With water, dear Henry, dear Henry, with water. But how shall I get it?, dear Liza, dear Liza, But how shall I get it?, dear Liza, with what? In the bucket, dear Henry, dear Henry, dear Henry, In the bucket, dear Henry, dear Henry, in the bucket! But there's a hole in the bucket, dear Liza, dear Liza, There's a hole in the bucket, dear Liza, a hole. There's a hole. From nobody Fri Apr 10 10:21:50 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsXsZ18lMz6YSQc for ; Fri, 10 Apr 2026 10:21:54 +0000 (UTC) (envelope-from ivy@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsXsY6nzkz41vL for ; Fri, 10 Apr 2026 10:21:53 +0000 (UTC) (envelope-from ivy@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1775816514; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; 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micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="yQ5963VE8labTu2A" Content-Disposition: inline In-Reply-To: --yQ5963VE8labTu2A Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Lexi Winter wrote in : > the problem seems to be due to choice of cipher: >=20 > % ssh -oCiphers=3Daes256-gcm@openssh.com root@ppc64-main.vm.le-fay.org > Fssh_ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message= authentication code incorrect >=20 > % ssh -oCiphers=3Dchacha20-poly1305@openssh.com root@ppc64-main.vm.le-fay= =2Eorg > Last login: Fri Apr 10 08:17:20 2026 from tansy.le-fay.org >=20 > if AES is broken, that would also explain why TLS doesn't work. >=20 > unfortunately while trying to rebuild world i ran into an unrelated > panic[0], so i'll need to find a workaround for that before i can > test more. i was able to cross-build current main (82ff1c334b97) on another system and copy it over, which seems to have fixed the issue with TLS and SSH. i need to do some final setup on the VM and then i'll try to do some more testing for the original vtnet/tcpdump problem, which is still present. --yQ5963VE8labTu2A Content-Type: application/pgp-signature; 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Fri, 10 Apr 2026 10:48:25 +0000 (UTC) (envelope-from ivy@freebsd.org) Date: Fri, 10 Apr 2026 11:48:21 +0100 From: Lexi Winter To: net@freebsd.org Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive Message-ID: Mail-Followup-To: net@freebsd.org References: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="9ZjBnsK/9XtfZZ7k" Content-Disposition: inline In-Reply-To: --9ZjBnsK/9XtfZZ7k Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Lexi Winter wrote in : > i was able to cross-build current main (82ff1c334b97) on another system > and copy it over, which seems to have fixed the issue with TLS and SSH. for anyone following along at home, the TLS fix seems to be this OpenSSL commit: https://github.com/openssl/openssl/commit/1d19060b55b3ab206cf1399220a4bdb5bd7c2d42 which was brought in via the OpenSSL 3.5.6 import a couple of days ago. (they fixed it silently, no mention in the release notes.) --9ZjBnsK/9XtfZZ7k Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQSyjTg96lp3RifySyn1nT63mIK/YAUCadjVcgAKCRD1nT63mIK/ YAMOAP4pSqSycp9tEYLhbFImloylUCHr5zig6hkrS6RiyGXH5QEAjsCFAnumcQs+ 4bphtLxcoTXx4w159fioh+T/xVkquQY= =zgAc -----END PGP SIGNATURE----- --9ZjBnsK/9XtfZZ7k-- From nobody Fri Apr 10 14:05:41 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsdqq1d9Dz6Ym70 for ; Fri, 10 Apr 2026 14:05:43 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsdqq17MKz3V8r for ; 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Fri, 10 Apr 2026 14:05:43 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 63AE5g1R028329 for ; Fri, 10 Apr 2026 14:05:42 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 63AE5gYS028327 for net@FreeBSD.org; Fri, 10 Apr 2026 14:05:42 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 282140] igc(4): Wake on LAN not working with Intel I226-V and GENERIC Kernel Date: Fri, 10 Apr 2026 14:05:41 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hnishida@thelustrecollective.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282140 --- Comment #6 from Hiroshi Nishida --- Created attachment 269588 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D269588&action= =3Dedit igc with wol enabled (fixed initialization issue) Fixed an initialization issue where WOL is always enabled at boot even if ifconfig -wol is specified before shutdown. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Apr 10 15:00:47 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsg3N0zc1z6Yr4c for ; Fri, 10 Apr 2026 15:00:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsg3N06tBz3Zsr for ; 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Fri, 10 Apr 2026 15:00:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 63AF0lVG031317 for ; Fri, 10 Apr 2026 15:00:47 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 63AF0lfB031316 for net@FreeBSD.org; Fri, 10 Apr 2026 15:00:47 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 282140] igc(4): Wake on LAN not working with Intel I226-V and GENERIC Kernel Date: Fri, 10 Apr 2026 15:00:47 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.1-RELEASE X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: rbranco@suse.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D282140 --- Comment #7 from Ricardo Branco --- https://github.com/freebsd/freebsd-src/pull/2136 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Apr 10 20:39:39 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fspZd695Vz6YMlC for ; Fri, 10 Apr 2026 20:39:53 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Received: from drew.franken.de (mail-n.franken.de [193.175.24.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.franken.de", Issuer "Certum Domain Validation CA SHA2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fspZd3ZSTz3F4g; Fri, 10 Apr 2026 20:39:53 +0000 (UTC) (envelope-from michael.tuexen@lurchi.franken.de) Authentication-Results: mx1.freebsd.org; none Received: from smtpclient.apple (unknown [IPv6:2a02:8109:1101:be00:8110:61d4:b0ae:ea2]) (Authenticated sender: lurchi) by drew.franken.de (Postfix) with ESMTPSA id 41123721E2806; Fri, 10 Apr 2026 22:39:40 +0200 (CEST) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3864.500.181\)) Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive From: Michael Tuexen In-Reply-To: Date: Fri, 10 Apr 2026 22:39:39 +0200 Cc: net@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <1AAE773E-B161-484C-8610-21157617FF3A@lurchi.franken.de> References: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> To: Lexi Winter X-Mailer: Apple Mail (2.3864.500.181) X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=disabled version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mail-n.franken.de X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; ASN(0.00)[asn:680, ipnet:193.174.0.0/15, country:DE] X-Rspamd-Queue-Id: 4fspZd3ZSTz3F4g X-Spamd-Bar: ---- > On 10. Apr 2026, at 12:21, Lexi Winter wrote: >=20 > Lexi Winter wrote in : >> the problem seems to be due to choice of cipher: >>=20 >> % ssh -oCiphers=3Daes256-gcm@openssh.com = root@ppc64-main.vm.le-fay.org >> Fssh_ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: = message authentication code incorrect >>=20 >> % ssh -oCiphers=3Dchacha20-poly1305@openssh.com = root@ppc64-main.vm.le-fay.org >> Last login: Fri Apr 10 08:17:20 2026 from tansy.le-fay.org >>=20 >> if AES is broken, that would also explain why TLS doesn't work. >>=20 >> unfortunately while trying to rebuild world i ran into an unrelated >> panic[0], so i'll need to find a workaround for that before i can >> test more. >=20 > i was able to cross-build current main (82ff1c334b97) on another = system > and copy it over, which seems to have fixed the issue with TLS and = SSH. >=20 > i need to do some final setup on the VM and then i'll try to do some > more testing for the original vtnet/tcpdump problem, which is still > present. Hi Ivy, is this really a vtnet/tcpdump problem? On my PPC64 VM, tcpdump does not show any packets on vtnet0 or lo0. On bare metal, tcpdump does not show any packets on lo0 or bge2. So I guess, this has nothing to do with vtnet. Best regards Michael From nobody Fri Apr 10 21:34:48 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4fsqpG6Pp4z6YS4P for ; Fri, 10 Apr 2026 21:35:02 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qv1-f54.google.com (mail-qv1-f54.google.com [209.85.219.54]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fsqpG4Nvfz3NJn for ; Fri, 10 Apr 2026 21:35:02 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Authentication-Results: mx1.freebsd.org; none Received: by mail-qv1-f54.google.com with SMTP id 6a1803df08f44-8a093c784b0so32254826d6.3 for ; Fri, 10 Apr 2026 14:35:02 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1775856901; cv=none; d=google.com; s=arc-20240605; b=ZTGkMV7Wm+X1XZhARcPHBMa2r/b+wWdUEPIp+fe+L9aOUwB8LstNzZiz04ouDcNQ9f /PjifuzHbouQgAfWUQRqzh5mci+MmZ42aresE+7azOH1HZeqUicEzZPo6c7ZIk4U41sz HSahQr7HBIUcBwexjNgWZQBUsvIrnQMFjUtKH4bg40gfOr/vPlI/r6GDDN8JEZ1tah60 zC+TJqCn6X8WTRWn4a23d8zsd0r7+NdiVK+TsgWbDRYOssEwB1QS11MaTqh642ob+SoL lXmAuhp6fsnneaxNdEC1zblfoFFxDgzwJkx+ONMGBCWA0Pz2yZcoDRfHfQGSlnVllOU7 WkZA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version; bh=tVMK7L3ojSMshZs0T7hk5iFV8oPiIdDpujgW4TV3w90=; fh=xpt0xk+pHcOFqNRzu2JW67mN0bzVwv55Yo27tLrDYa8=; b=fJ1XWLTgKLqLe2QuBvcatpvME1fOC3Btb6csZwEIF7C3rIEJNsKowGdDuaktZlbfKn apLO/2odAw47CbIai/MEOLQ83r4BT5FDOLCHyUQva9io3dbvrMIVo8592TUHG0ySVbe7 2djMZ0aYPyiLzrSafTwZ8+BvSR1XHuCZmNZb+rbnk1MiDfjcaL4GqPLcbBdDgX01fCYF PMSVNm6t3FUawMdvwP0BCcTxgMf6s2UegvTggYeATmlZjVHZEpT4KpEqfXCS6WjpdFV9 zkw4OevksPMGNy6F0eul6uc85ZsuouQNEyqoGlG80attAiR9p4PHyqOPg6V6sVHGBM+T Qt6g==; darn=freebsd.org ARC-Authentication-Results: i=1; mx.google.com; arc=none X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775856901; x=1776461701; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=tVMK7L3ojSMshZs0T7hk5iFV8oPiIdDpujgW4TV3w90=; b=e8PhUinEaKeCP+mrEJstSj0VpsWyZdeYmOVuh5F/XWa1qUwhWaqHzvQotlT2G+GKd+ 8sxrSwizSqwpeZb2+LCEkIxybqZwcJ+RB0sxBhPkfEy66pHQIgKVTxcgEfOoxScTUnbZ 0b2OFSTpQXoqPwlRkIBUiN737DYLp1frpWNpKeOVEs0h6he6zsLvVsMyAkOq6ATLD3RT RHbO0ZsA+UvrhDSI1lcBx7fkrdd446IkzCdc92ixvM9smPp4/Ig87tAFfYuS82NzUs/u MHt4uWcRaK7vB5GkK6SbMJFeVqhTSNZsrOHUBHjTx693VY09UdZamdfuPlX2GXrDTXkq 0Wvw== X-Forwarded-Encrypted: i=1; AJvYcCVD2yYpWLx3Q5yqST2wOa1KYb+SFRgWUXkBgNdG2AszD/VCLQBeWNpZGmPxGUuEJLeScUo=@freebsd.org X-Gm-Message-State: AOJu0Yxopg+qlWGuyAK50Hz1xF+fXpIL6GZyr1C2kmoVEmAp0Mgga6NT knUorO3ksRh1wgfAzqcZRl/hK87/IHllhzWO7ZMaxnobxAvSeEpY2OAh2PRb/zUysD0QJkuo9b8 KVHvMGYRYY7zmupIU3Ap81EzDpbeW07c= X-Gm-Gg: AeBDievdMtG72NXYTCCW9XI2AMJEWoBGWCHtNrUdRvbgoekz8br9ZO4VmIOuv3lsUat ZdfW3FCzxIy/O2OjuCoSv06sq3eQsnpryJQf4Pj+BbvUOE5HPYlyLIkRmsBeMh2e4enFpVxVftw /KfNEHSdvXBX9W1mAgeAKQTsrH1O0n7FhvobR+oERN/KlyFHijmXLJPQqGtpkG49CA/RaN5uaH8 2Vxr5pUMgMV7xPVsABpta7MzFyr6p+SuXmmflyAda2qv2pIF85XQAPn8/q+UKDAzt87z0GBn+vG TAkeJmoIwg6UEQubjO6kjLyXu8DCcBwhtiZ1D2l2jKk7pgdurXPZl2qreyiYkXb2aZkgBCQDNob xL9TJz/7trmqlrBLMsjNgBsfNup4= X-Received: by 2002:a05:6214:5bc2:b0:89c:6bc6:e4fd with SMTP id 6a1803df08f44-8ac861ad30dmr75335886d6.19.1775856901363; Fri, 10 Apr 2026 14:35:01 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 References: <20AC79BC-3773-4CF8-B1FE-A20E40604EE0@lurchi.franken.de> <00B13D30-B1E0-414E-9CF6-5F1B4B76F8FB@lurchi.franken.de> <84E648A2-084B-44D3-AB0D-625D3A6B87E3@lurchi.franken.de> <1AAE773E-B161-484C-8610-21157617FF3A@lurchi.franken.de> In-Reply-To: <1AAE773E-B161-484C-8610-21157617FF3A@lurchi.franken.de> From: Adrian Chadd Date: Fri, 10 Apr 2026 14:34:48 -0700 X-Gm-Features: AQROBzBth8gF9deQnm1AhAyhpuiPC08I3Ed6CUgCm5dtVuw9Y3OaLepV4xj13VI Message-ID: Subject: Re: FreeBSD guest on Linux KVM, some vtnet(4) packets don't arrive To: Michael Tuexen Cc: Lexi Winter , net@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[]; TAGGED_FROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US] X-Rspamd-Queue-Id: 4fsqpG4Nvfz3NJn X-Spamd-Bar: ---- On Fri, 10 Apr 2026 at 13:40, Michael Tuexen wrote: > > > On 10. Apr 2026, at 12:21, Lexi Winter wrote: > > > > Lexi Winter wrote in : > >> the problem seems to be due to choice of cipher: > >> > >> % ssh -oCiphers=aes256-gcm@openssh.com root@ppc64-main.vm.le-fay.org > >> Fssh_ssh_dispatch_run_fatal: Connection to fd00:0:0:1::b port 22: message authentication code incorrect > >> > >> % ssh -oCiphers=chacha20-poly1305@openssh.com root@ppc64-main.vm.le-fay.org > >> Last login: Fri Apr 10 08:17:20 2026 from tansy.le-fay.org > >> > >> if AES is broken, that would also explain why TLS doesn't work. > >> > >> unfortunately while trying to rebuild world i ran into an unrelated > >> panic[0], so i'll need to find a workaround for that before i can > >> test more. > > > > i was able to cross-build current main (82ff1c334b97) on another system > > and copy it over, which seems to have fixed the issue with TLS and SSH. > > > > i need to do some final setup on the VM and then i'll try to do some > > more testing for the original vtnet/tcpdump problem, which is still > > present. > Hi Ivy, > > is this really a vtnet/tcpdump problem? On my PPC64 VM, tcpdump does not > show any packets on vtnet0 or lo0. On bare metal, tcpdump does not show > any packets on lo0 or bge2. > > So I guess, this has nothing to do with vtnet. There's likely a bunch of weird broken stuff that we need to fix. I'm pretty sure tcpdump worked fine in December last year on ppc64le/ppc64be since I was doing general fixing of stuff there. Let's file some ppc64 bugs and get them triaged/debugged. I bet the "why's tcpdump not working?" problem is triagable with dtrace/fbt points. -adrian