From nobody Mon Dec 8 14:30:42 2025 X-Original-To: virtualization@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 4dQ4CR5TTSz6JsdH for ; Mon, 08 Dec 2025 14:30:43 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dQ4CQ70ZWz3wPQ for ; Mon, 08 Dec 2025 14:30:42 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765204243; 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, 8 Dec 2025 14:30:42 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5B8EUgSj024105 for virtualization@FreeBSD.org; Mon, 8 Dec 2025 14:30:42 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: virtualization@FreeBSD.org Subject: [Bug 268794] Simultaneous vcpu_lock_all() and vm_handle_rendezvous() can deadlock vmm Date: Mon, 08 Dec 2025 14:30:42 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: 13.1-STABLE X-Bugzilla-Keywords: bhyve X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: markj@FreeBSD.org X-Bugzilla-Flags: mfc-stable15+ mfc-stable14+ X-Bugzilla-Changed-Fields: flagtypes.name assigned_to 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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D268794 Mark Johnston changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |mfc-stable15+, | |mfc-stable14+ Assignee|virtualization@FreeBSD.org |markj@FreeBSD.org --- Comment #21 from Mark Johnston --- (In reply to Andrey Lanin from comment #20) Yes, unfortunately this patch didn't make it in time for 15.0-RELEASE. The patch is in stable/15 and stable/14 so will arrive in the next releases on those branches. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Dec 8 21:11:22 2025 X-Original-To: freebsd-virtualization@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 4dQF5p0gzfz6KNxG for ; Mon, 08 Dec 2025 21:11:26 +0000 (UTC) (envelope-from jbwlists@hilltopgroup.com) Received: from mail.nova.hilltopgroup.com (nova.hilltopgroup.com [66.135.8.57]) (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 mx1.freebsd.org (Postfix) with ESMTPS id 4dQF5m72PNz44q3 for ; Mon, 08 Dec 2025 21:11:24 +0000 (UTC) (envelope-from jbwlists@hilltopgroup.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=hilltopgroup.com header.s=mail header.b=oxP7qPSu; dmarc=pass (policy=reject) header.from=hilltopgroup.com; spf=pass (mx1.freebsd.org: domain of jbwlists@hilltopgroup.com designates 66.135.8.57 as permitted sender) smtp.mailfrom=jbwlists@hilltopgroup.com Received: from mail.relativity.hilltopgroup.com (unknown [104.185.205.155]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by mail.nova.hilltopgroup.com (Postfix) with ESMTPS id 8F73E1ADA for ; Mon, 08 Dec 2025 16:11:24 -0500 (EST) Received: from [192.168.8.200] (unknown [104.185.205.155]) (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) (No client certificate requested) (Authenticated sender: jbwlists@hilltopgroup.com) by mail.relativity.hilltopgroup.com (Postfix) with ESMTPSA id 4741C70190 for ; Mon, 08 Dec 2025 16:11:23 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=hilltopgroup.com; s=mail; t=1765228283; bh=4mebqY9aAcU3neI+q7AyYdZJYpeiYkIc63MK/rzd1Xs=; h=Date:To:From:Subject; b=oxP7qPSu/GCdXN5cnpURXxWJzbOERzYowhcIZG9SrYKdomKTiJt4cO3Ur7xCf9PHy Nd3Rt3RP3PgLD8Fzez4VOjtzQaYX1Py+1uFDbKgCpA7o2RVRT+pAi/wv8GSG3pYfPG all4qG+cR06gWo24AmxDI7L1tTFugmcmSQMkZcHw= Content-Type: multipart/alternative; boundary="------------UB0O0E609QdCfDIGnI7dYCBs" Message-ID: <783f03ff-623e-4ecc-9e37-167fc2f19826@hilltopgroup.com> Date: Mon, 8 Dec 2025 16:11:22 -0500 List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: freebsd-virtualization@freebsd.org From: Joseph Ward Content-Language: en-US Subject: Host system crash - bhyve pci passthrough X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.69 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; HFILTER_HELO_IP_A(1.00)[mail.nova.hilltopgroup.com]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.99)[-0.990]; DMARC_POLICY_ALLOW(-0.50)[hilltopgroup.com,reject]; HFILTER_HELO_NORES_A_OR_MX(0.30)[mail.nova.hilltopgroup.com]; R_DKIM_ALLOW(-0.20)[hilltopgroup.com:s=mail]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RCPT_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:20473, ipnet:66.135.0.0/19, country:US]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-virtualization@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-virtualization@freebsd.org]; DKIM_TRACE(0.00)[hilltopgroup.com:+] X-Rspamd-Queue-Id: 4dQF5m72PNz44q3 This is a multi-part message in MIME format. --------------UB0O0E609QdCfDIGnI7dYCBs Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit I'm running FreeBSD 14.3-RELEASE-p6 on a Supermicro H11SSL motherboard with an EPYC 7551 32-core CPU. This system runs 2 guests under bhyve, both with pci passthough: 1. A FreeBSD system running off of a physical disk (disk0_name="/dev/ada1", disk0_dev="custom") and 2 LSI HBAs passed through with pci passthrough for large amounts of storage. 2. A Linux system running off a zvol on the host with a Google Coral Edge TPU passed through. VM #2 streams approximately 10MiB/s across the virtual network to VM #1 for storage over NFS. With the default FreeBSD settings, the host will lock within a couple of minutes after VM #2 boots (and sometimes during the Linux boot phase).  A error that appears on the console is: swap_pager: indefinite wait buffer: bufobj: 0, blkno: 23943, size: 28672  (the blkno and size change of course) When this happens, the system is completely unresponsive, and the Linux VM is locked as well.  Sometimes I can bring it back by shutting down VM #1 which usually remains responsive for a while, but eventually it will also freeze. Without PCI passthrough, there is no crash. I've tried many things, but one config element that does seem to delay (for up to several days) the freeze has been setting vfs.zfs.vdev.max_active=600 in /boot/loader.conf. Memory usage remains low before a lockup, a tiny fraction of swap is used, iostat doesn't show unusual volume, and there's plenty of idle CPU. I'd love to be able to identify what's actually happening so that I could either address it via config changes or to file a defect, but I'm unable to find any metrics that are increasing, or any other way to trace the issue. Does anyone either have an idea about what's going on, or know some relevant metrics/traces that would help in IDing the issue? Thanks in advance, Joseph --------------UB0O0E609QdCfDIGnI7dYCBs Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit

I'm running FreeBSD 14.3-RELEASE-p6 on a Supermicro H11SSL motherboard with an EPYC 7551 32-core CPU.

This system runs 2 guests under bhyve, both with pci passthough: 

  1. A FreeBSD system running off of a physical disk (disk0_name="/dev/ada1", disk0_dev="custom") and 2 LSI HBAs passed through with pci passthrough for large amounts of storage.
  2. A Linux system running off a zvol on the host with a Google Coral Edge TPU passed through.

VM #2 streams approximately 10MiB/s across the virtual network to VM #1 for storage over NFS.


With the default FreeBSD settings, the host will lock within a couple of minutes after VM #2 boots (and sometimes during the Linux boot phase).  A error that appears on the console is:  

swap_pager: indefinite wait buffer: bufobj: 0, blkno: 23943, size: 28672  (the blkno and size change of course)

When this happens, the system is completely unresponsive, and the Linux VM is locked as well.  Sometimes I can bring it back by shutting down VM #1 which usually remains responsive for a while, but eventually it will also freeze.

Without PCI passthrough, there is no crash. 


I've tried many things, but one config element that does seem to delay (for up to several days) the freeze has been setting  vfs.zfs.vdev.max_active=600 in /boot/loader.conf.

Memory usage remains low before a lockup, a tiny fraction of swap is used, iostat doesn't show unusual volume, and there's plenty of idle CPU.

I'd love to be able to identify what's actually happening so that I could either address it via config changes or to file a defect, but I'm unable to find any metrics that are increasing, or any other way to trace the issue.

Does anyone either have an idea about what's going on, or know some relevant metrics/traces that would help in IDing the issue?

Thanks in advance,


Joseph

--------------UB0O0E609QdCfDIGnI7dYCBs-- From nobody Tue Dec 9 19:49:18 2025 X-Original-To: freebsd-virtualization@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 4dQqDh2cwBz6Jhlq for ; Tue, 09 Dec 2025 19:49:24 +0000 (UTC) (envelope-from taro@desudesu.org) Received: from desudesu.org (desudesu.org [5.9.28.141]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4dQqDg6WXRz3rXv for ; Tue, 09 Dec 2025 19:49:23 +0000 (UTC) (envelope-from taro@desudesu.org) Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of taro@desudesu.org designates 5.9.28.141 as permitted sender) smtp.mailfrom=taro@desudesu.org Date: Tue, 9 Dec 2025 11:49:18 -0800 From: Taro To: freebsd-virtualization@freebsd.org Subject: [vmm] patch for nvidia pci passthru on releng/15 Message-ID: <20251209114918.2212e7b4@blade> Content-Type: multipart/mixed; boundary="MP_/Hn1kj2w2sXOdhLOwYgW0Cmd" X-Spamd-Bar: / X-Spamd-Result: default: False [-0.68 / 15.00]; MISSING_MIME_VERSION(2.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-0.999]; NEURAL_HAM_SHORT(-0.98)[-0.984]; MID_RHS_NOT_FQDN(0.50)[]; R_SPF_ALLOW(-0.20)[+mx:c]; ONCE_RECEIVED(0.10)[]; MIME_GOOD(-0.10)[multipart/mixed,text/plain,text/x-patch]; ARC_NA(0.00)[]; MISSING_XM_UA(0.00)[]; ASN(0.00)[asn:24940, ipnet:5.9.0.0/16, country:DE]; MIME_TRACE(0.00)[0:+,1:+,2:+]; FROM_HAS_DN(0.00)[]; R_DKIM_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MLMMJ_DEST(0.00)[freebsd-virtualization@freebsd.org]; DMARC_NA(0.00)[desudesu.org]; HAS_ATTACHMENT(0.00)[] X-Rspamd-Queue-Id: 4dQqDg6WXRz3rXv List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org --MP_/Hn1kj2w2sXOdhLOwYgW0Cmd Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline Hello! When I updated from 14.3 to 15.0, my nvidia 5090 passthru to an Ubuntu guest broke (nvidia-smi on the guest returns "no devices"). Emitted to the host's dmesg: ivhd0: EVT INTR 0 Status:0x1a EVT Head:0x0 Tail:0x10] [CMD Total 0x42] Tail:0x420, Head:0x420. ivhd0: [Event0: Head:0x0 Tail:0x10] [IO_PAGE_FAULT EVT: devId:0x100 DomId:0x1 Addr:0x1271c0000 0x0] (The Ubuntu guest is configured with 32GB of RAM. I later noted that it works correctly when the value is set less than VM_LOWMEM_LIMIT.) git bisect indicated the first bad commit was 08c7dd2f After some trial and error, I added printfs to vm_mmap_memseg to see if there was any difference in the working/bad versions, and there was: when splitting a segment mapping, the previous working version would first map the higher, then the lower. The broken version swapped the ordering: ## WORKING ## vmm: mmap{gpa=4294967296, segid=0, segoff=4294967296, len=31138512896} vmm: mmap{gpa=0, segid=0, segoff=0, len=3221225472} vmm: mmap{gpa=4291313664, segid=8, segoff=13123584, len=3653632} vmm: mmap{gpa=4278190080, segid=8, segoff=0, len=4096} vmm: mmap{gpa=3288334336, segid=9, segoff=0, len=33554432} ## BROKEN ## vmm: mmap{gpa=0, segid=0, segoff=0, len=3221225472} vmm: mmap{gpa=4294967296, segid=0, segoff=3221225472, len=31138512896} vmm: mmap{gpa=4291313664, segid=8, segoff=13123584, len=3653632} vmm: mmap{gpa=4278190080, segid=8, segoff=0, len=4096} vmm: mmap{gpa=3288334336, segid=9, segoff=0, len=33554432} Putting the ordering back (patch attached) fixes the problem for me. I don't know why. I do note that the segoff is also different between working/broken, but am trying not to think about it. I am a humble web programmer, lost and afraid. Thanks! --MP_/Hn1kj2w2sXOdhLOwYgW0Cmd Content-Type: text/x-patch Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=nvidia-passthru-fix.patch diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c index 77f0f8f5c58..a86b444b642 100644 --- a/lib/libvmmapi/vmmapi.c +++ b/lib/libvmmapi/vmmapi.c @@ -562,18 +562,20 @@ vm_setup_memory_domains(struct vmctx *ctx, enum vm_mmap_style vms, if (gpa <= VM_LOWMEM_LIMIT && gpa + dom->size > VM_LOWMEM_LIMIT) { low_len = VM_LOWMEM_LIMIT - gpa; + /* Map remainder first */ + error = map_memory_segment(ctx, segid, VM_HIGHMEM_BASE, + dom->size - low_len, low_len, baseaddr); + if (error) + return (error); + /* Then map lower segment */ error = map_memory_segment(ctx, segid, gpa, low_len, 0, baseaddr); if (error) return (error); + /* Update vars to post-remainder setup */ ctx->lowmem_size = VM_LOWMEM_LIMIT; - /* Map the remainder. */ gpa = VM_HIGHMEM_BASE; len = dom->size - low_len; - error = map_memory_segment(ctx, segid, gpa, len, - low_len, baseaddr); - if (error) - return (error); } else { len = dom->size; error = map_memory_segment(ctx, segid, gpa, len, 0, --MP_/Hn1kj2w2sXOdhLOwYgW0Cmd-- From nobody Wed Dec 10 08:01:36 2025 X-Original-To: virtualization@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 4dR7TX2Xpdz6K8QJ for ; Wed, 10 Dec 2025 08:01:36 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dR7TX1zhrz49fw for ; Wed, 10 Dec 2025 08:01:36 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; 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Wed, 10 Dec 2025 08:01:36 +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 5BA81aWb090067 for ; Wed, 10 Dec 2025 08:01:36 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BA81aRf090065 for virtualization@FreeBSD.org; Wed, 10 Dec 2025 08:01:36 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Wed, 10 Dec 2025 08:01:36 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: martin.larsson2@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #17 from martin.larsson2@gmail.com --- just FYI, the patch from https://marc.info/?l=3Dfreebsd-virtualization&m=3D176531257403805&w=3D2 wor= ked for me. HASS(home assistant linux) usb over pci passthrough works again --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Dec 10 15:08:43 2025 X-Original-To: virtualization@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 4dRJyQ70zLz6Kjm0 for ; Wed, 10 Dec 2025 15:08:46 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRJyQ43P9z3TMV for ; Wed, 10 Dec 2025 15:08:46 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; 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Wed, 10 Dec 2025 15:08:46 +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 5BAF8k8Y059109 for ; Wed, 10 Dec 2025 15:08:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BAF8kbK059108 for virtualization@FreeBSD.org; Wed, 10 Dec 2025 15:08:46 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Wed, 10 Dec 2025 15:08:43 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: jhb@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc bug_status 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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 John Baldwin changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bnovkov@FreeBSD.org, | |markj@FreeBSD.org Status|New |Open --- Comment #18 from John Baldwin --- (In reply to martin.larsson2 from comment #17) Thanks for this detail. I've added the author of the commit, but I'm not s= ure yet if we want to just restore the ordering or if we need to fix the kernel side to not care about the ordering. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Dec 10 17:26:16 2025 X-Original-To: virtualization@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 4dRN1726pQz6KtQ6 for ; Wed, 10 Dec 2025 17:26:19 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRN165hkrz3kdZ for ; Wed, 10 Dec 2025 17:26:18 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Wed, 10 Dec 2025 17:26:18 +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 5BAHQIJL009260 for ; Wed, 10 Dec 2025 17:26:18 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BAHQI3t009259 for virtualization@FreeBSD.org; Wed, 10 Dec 2025 17:26:18 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Wed, 10 Dec 2025 17:26:16 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: kmachine@free.fr X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #19 from Emrion --- (In reply to martin.larsson2 from comment #17) Alas, it doesn't work in my case. Once applyed, pfSense hangs on "Configuring Wan interface..." (the pass-thr= ued interface). A ctrl-c puts pfSense in single user mode (?). In a sense, it's worse than without the patch. This patch may help in some configurations, but it's not the solution. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Dec 10 18:11:26 2025 X-Original-To: virtualization@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 4dRP1D1xYSz6KwY4 for ; Wed, 10 Dec 2025 18:11:28 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRP1D0dKgz3phm for ; Wed, 10 Dec 2025 18:11:28 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Wed, 10 Dec 2025 18:11:28 +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 5BAIBRMU094668 for ; Wed, 10 Dec 2025 18:11:27 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BAIBRCT094667 for virtualization@FreeBSD.org; Wed, 10 Dec 2025 18:11:27 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Wed, 10 Dec 2025 18:11:26 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: bnovkov@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #20 from Bojan Novkovi=C4=87 --- Created attachment 266072 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D266072&action= =3Dedit Potential segment mapping fix Would you giving this patch a spin? I am not sure if it'll fix the issue but it will definitely help narrow thi= ngs down. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Dec 10 20:22:13 2025 X-Original-To: virtualization@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 4dRRw9426Rz6JbNx for ; Wed, 10 Dec 2025 20:22:17 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRRw93QrXz46lw for ; Wed, 10 Dec 2025 20:22:17 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Wed, 10 Dec 2025 20:22:17 +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 5BAKMHjj036402 for ; Wed, 10 Dec 2025 20:22:17 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BAKMHk1036401 for virtualization@FreeBSD.org; Wed, 10 Dec 2025 20:22:17 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Wed, 10 Dec 2025 20:22:13 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: kmachine@free.fr X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #21 from Emrion --- (In reply to Bojan Novkovi=C4=87 from comment #20) Your patch works in the sense that the VM doesn't hang anymore. However, I have the same problem as before. Sometimes the VM can access to = the network and sometimes not. I also tried a libvmmapi version with your commits 08c7dd2 and a4197ea reverted: same result. I retried under 14.3-RELEASE and there is no trouble, that works 100% of the time. So, I think that my problem is different, but related to changes in 15.0-RELEASE concerning virtualisation with bhyve. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Thu Dec 11 07:01:57 2025 X-Original-To: virtualization@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 4dRk6F5K25z6KTHl for ; Thu, 11 Dec 2025 07:01:57 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRk6F3BLGz3PB5 for ; Thu, 11 Dec 2025 07:01:57 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Thu, 11 Dec 2025 07:01:57 +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 5BB71v2Y071159 for ; Thu, 11 Dec 2025 07:01:57 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BB71vrA071140 for virtualization@FreeBSD.org; Thu, 11 Dec 2025 07:01:57 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Thu, 11 Dec 2025 07:01:57 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: dan@sunsaturn.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #22 from dan@sunsaturn.com --- (In reply to martin.larsson2 from comment #17) Thanks Martin, I applied patch to FreeBSD 15 stable, now everything works again, home assistant passthroughs for USB, corvin for nvidia card. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Thu Dec 11 08:35:53 2025 X-Original-To: virtualization@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 4dRmBg0hPqz6KbM1 for ; Thu, 11 Dec 2025 08:35:55 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRmBf70zxz3Yjv for ; 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Thu, 11 Dec 2025 08:35:54 +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 5BB8ZsX3047625 for ; Thu, 11 Dec 2025 08:35:54 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BB8ZshJ047624 for virtualization@FreeBSD.org; Thu, 11 Dec 2025 08:35:54 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Thu, 11 Dec 2025 08:35:53 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: dan@sunsaturn.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #23 from dan@sunsaturn.com --- (In reply to Bojan Novkovi=C4=87 from comment #20) I appreciate you sending the patch. I tested it by first reverting my local vmmapi.c to the unpatched original, then rebuilding both libvmmapi and bhyv= e to ensure a fresh link: Test Procedure: cd /usr/src/lib/libvmmapi make clean cp vmmapi.c.old vmmapi.c # Revert to unpatched original patch -p1 -d /usr/src < /root/freebsd-usb2.patch # Apply your patch make && make install cd /usr/src/usr.sbin/bhyve make clean make && make install I have completed testing of your proposed patch for libvmmapi.c (using GPA = as offset). The testing confirms that the ordering of memory segment mapping remains the critical factor for my environment, and the proposed GPA-based offset patch introduces a new issue. TEST RESULTS SUMMARY: 1. Your Patch (GPA Offset applied): - VM Boots: Yes - Passthrough Works: No - Guest Error Observed: PCI INT A: no GSI (interrupt routing failure) 2. Original Patch (High -> Low Ordering re-applied for verification): - VM Boots: Yes - Passthrough Works: Yes (Full functionality restored for GPU and USB) CONCLUSION: The original patch that forces the High Memory segment to be mapped before = the Low Memory segment successfully resolves the passthrough issue on my updated 15.0 system. The failure of the GPA-based patch to correctly set up the PCI interrupt routing (PCI INT A: no GSI) suggests that the explicit High -> Low ordering= of the map updates is required by the VMM or IOMMU for proper initialization of passthrough devices, overriding any need for the GPA offset correction in t= his configuration. I will continue using the ordering patch for now. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Thu Dec 11 17:09:20 2025 X-Original-To: virtualization@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 4dRzb44zjHz6K3m0 for ; Thu, 11 Dec 2025 17:09:20 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dRzb43jxFz3xjt for ; Thu, 11 Dec 2025 17:09:20 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; 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Thu, 11 Dec 2025 17:09:20 +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 5BBH9K2W044305 for ; Thu, 11 Dec 2025 17:09:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BBH9Kr3044302 for virtualization@FreeBSD.org; Thu, 11 Dec 2025 17:09:20 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: virtualization@FreeBSD.org Subject: [Bug 291577] 15.0-RELEASE install panic on Hyper-V Generation 2 Virtual Machine (2+ vCPUs) Date: Thu, 11 Dec 2025 17:09:20 +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: 15.0-RELEASE X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: keywords assigned_to Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; 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Thu, 11 Dec 2025 20:13:14 +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 5BBKDEQw007809 for ; Thu, 11 Dec 2025 20:13:14 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BBKDESt007808 for virtualization@FreeBSD.org; Thu, 11 Dec 2025 20:13:14 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Thu, 11 Dec 2025 20:13:12 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: dan@sunsaturn.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #24 from dan@sunsaturn.com --- Feel free to submit any other patches for testing, I'll try to run them here locally to get this resolved. Would be nice to get at root cause so ordering does not get broken again for sure. I would really love to see this and corvin patches make it into Release p1 = and appreciate the effort. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Fri Dec 12 18:31:43 2025 X-Original-To: virtualization@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 4dSdMg58gRz6K4vR for ; Fri, 12 Dec 2025 18:31:43 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dSdMg4gXJz3JvB for ; Fri, 12 Dec 2025 18:31:43 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; 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Fri, 12 Dec 2025 18:31:43 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BCIVhVZ050544 for virtualization@FreeBSD.org; Fri, 12 Dec 2025 18:31:43 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: virtualization@FreeBSD.org Subject: [Bug 291616] bhyve: crashes with slirp open networking Date: Fri, 12 Dec 2025 18:31:43 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: novel@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: 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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D291616 Bug ID: 291616 Summary: bhyve: crashes with slirp open networking Product: Base System Version: CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bhyve Assignee: virtualization@FreeBSD.org Reporter: novel@FreeBSD.org Steps to reproduce: 1. Run a guest. I use Ubuntu Linux for testing: bhyve -c 2 -m 4096 -S -A -I -u -H -P -s 0:0,hostbridge -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd -s 1:0,lpc -s 7:0,virtio-blk,/data/img/u buntu2510.img -l com1,stdio -s 8:0,virtio-net,slirp,mac=3D94:06:31:1a:a6:f7= ,open=20 ubuntu2510=20 2. Generate traffic from the guest. I use the following command: while wget https://download.freebsd.org/releases/ISO-IMAGES/15.0/FreeBSD-15.0-RELEASE-= arm64-aarch64-dvd1.iso -O /dev/null; do : ; done bhyve crashes with: thr_kill () at thr_kill.S:4 4 RSYSCALL(thr_kill) /dev/null=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20 68%[=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D> ] 2.63G --.-KB/s eta= 3m 13s=20 (gdb) bt #0 thr_kill () at thr_kill.S:4 #1 0x000000080114c934 in __raise (s=3Ds@entry=3D6) at /usr/home/novel/code/freebsd-src/lib/libc/gen/raise.c:48 #2 0x00000008011fe7a9 in abort () at /usr/home/novel/code/freebsd-src/lib/libc/stdlib/abort.c:61 #3 0x000000080112f521 in __assert (func=3D, file=3D, line=3Dline@entry=3D113, failedexpr=3D) at /usr/home/novel/code/freebsd-src/lib/libc/gen/assert.c:47 #4 0x0000000001024f2e in slirp_cb_send_packet (buf=3D, len= =3D1514, param=3D) at /usr/home/novel/code/freebsd-src/usr.sbin/bhyve/slirp/slirp-helper.c:113 #5 0x000000080141ad02 in ?? () from /usr/local/lib/libslirp.so.0 #6 0x0000000801412f7d in ?? () from /usr/local/lib/libslirp.so.0 #7 0x0000000801416366 in ?? () from /usr/local/lib/libslirp.so.0 #8 0x0000000801421197 in ?? () from /usr/local/lib/libslirp.so.0 #9 0x000000080141a718 in slirp_pollfds_poll () from /usr/local/lib/libslirp.so.0 #10 0x0000000001024c73 in slirp_pollfd_loop (priv=3D0x7fffffffe7b0) at /usr/home/novel/code/freebsd-src/usr.sbin/bhyve/slirp/slirp-helper.c:263 #11 main (argc=3D, argv=3D) at /usr/home/novel/code/freebsd-src/usr.sbin/bhyve/slirp/slirp-helper.c:566 (gdb) fr 4 #4 0x0000000001024f2e in slirp_cb_send_packet (buf=3D, len= =3D1514, param=3D) at /usr/home/novel/code/freebsd-src/usr.sbin/bhyve/slirp/slirp-helper.c:113 113 assert((size_t)n =3D=3D len); (gdb) p n $1 =3D 0 (gdb) Host system is: FreeBSD tulp 16.0-CURRENT FreeBSD 16.0-CURRENT #1 main-n282364-69e041521a80: Fri Dec 5 16:24:19 CET 2025=20=20=20=20 novel@tulp:/usr/obj/usr/home/novel/code/freebsd-src/amd64.amd64/sys/TULP am= d64 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sat Dec 13 15:41:54 2025 X-Original-To: virtualization@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 4dT9YG3bj9z6Kb9V for ; 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mx1.freebsd.org; none 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 4dT9YG2QSVz18P6 for ; Sat, 13 Dec 2025 15:41:54 +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 5BDFfsgt004962 for ; Sat, 13 Dec 2025 15:41:54 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BDFfsYn004961 for virtualization@FreeBSD.org; Sat, 13 Dec 2025 15:41:54 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: virtualization@FreeBSD.org Subject: [Bug 291616] bhyve: crashes with slirp open networking Date: Sat, 13 Dec 2025 15:41:54 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bhyve X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: novel@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: version 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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D291616 Roman Bogorodskiy changed: What |Removed |Added ---------------------------------------------------------------------------- Version|16.0-CURRENT |CURRENT --- Comment #1 from Roman Bogorodskiy --- Additional node: commenting out this assert appears to "fix" the issue. At least the wget loop runs for a few hours without issues. With iperf run I get the following result: client$ iperf -c -u -i 1 -P 8 -t 600 -b 100M server: [ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams [ 46] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 2727/5347621 (0.051%) [ 46] 0.00-600.02 sec 7 datagrams received out-of-order [ 47] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.047 ms 2867/5347593 (0.054%) [ 42] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 3005/5349831 (0.056%) [ 42] 0.00-600.02 sec 4 datagrams received out-of-order [ 44] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.047 ms 2673/5349876 (0.05%) [ 44] 0.00-600.02 sec 12 datagrams received out-of-order [ 45] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 2777/5349872 (0.052%) [ 45] 0.00-600.02 sec 16 datagrams received out-of-order [ 49] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 3017/5347630 (0.056%) [ 48] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 2795/5347580 (0.052%) [ 48] 0.00-600.02 sec 2 datagrams received out-of-order [ 43] 0.00-600.02 sec 7.32 GBytes 105 Mbits/sec 0.048 ms 2775/5349856 (0.052%) [ 43] 0.00-600.02 sec 4 datagrams received out-of-order [ ID] Interval Transfer Bandwidth [SUM] 0.00-600.02 sec 58.6 GBytes 838 Mbits/sec 22636/42789859 (0.053%) [SUM] 0.00-600.02 sec 45 datagrams received out-of-order On server I also see warnings like: WARN: recvmsg MSG_CTRUNC occured. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sat Dec 13 15:44:22 2025 X-Original-To: virtualization@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 4dT9cB0mq2z6KbW3 for ; 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mx1.freebsd.org; none 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 4dT9c96lGGz18d3 for ; Sat, 13 Dec 2025 15:44:25 +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 5BDFiPeC011571 for ; Sat, 13 Dec 2025 15:44:25 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BDFiPZs011570 for virtualization@FreeBSD.org; Sat, 13 Dec 2025 15:44:25 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Sat, 13 Dec 2025 15:44:22 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: bnovkov@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #25 from Bojan Novkovi=C4=87 --- Created attachment 266160 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D266160&action= =3Dedit vm_iommu_{un}map check fix. (In reply to dan from comment #24) Thank you, your help is greatly appreciated since I do not have a good way = of testing potential fixes right now. Speaking of potential fixes, I have another patch for you, this time a fix = for a bug that was introduced in `vmm.c` between the releases. Please let me kn= ow if it helps. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sat Dec 13 16:06:18 2025 X-Original-To: virtualization@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 4dTB5S5K0kz6KdFm for ; Sat, 13 Dec 2025 16:06:20 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dTB5S3gmLz3LNV for ; Sat, 13 Dec 2025 16:06:20 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; 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Sat, 13 Dec 2025 16:06:20 +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 5BDG6KDS041557 for ; Sat, 13 Dec 2025 16:06:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BDG6K2R041556 for virtualization@FreeBSD.org; Sat, 13 Dec 2025 16:06:20 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Sat, 13 Dec 2025 16:06:18 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: ns87@shadau.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #26 from Nuno Subtil --- (In reply to Bojan Novkovi=C4=87 from comment #25) > Speaking of potential fixes, I have another patch for you, this time a fi= x for a bug that was introduced in `vmm.c` between the releases. Please let= me know if it helps. This patch seems to work for me. My test case is exposing a single NV GPU t= o a Linux VM. (I had similar results otherwise as dan: the patch from https://marc.info/?l=3Dfreebsd-virtualization&m=3D176531257403805&w=3D2 als= o works, your earlier patch from comment #20 did not.) --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sun Dec 14 02:51:47 2025 X-Original-To: virtualization@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 4dTSQG1B1hz6KYpf for ; Sun, 14 Dec 2025 02:51:50 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dTSQF6dhzz3hJH for ; 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Sun, 14 Dec 2025 02:51:49 +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 5BE2pnoo007653 for ; Sun, 14 Dec 2025 02:51:49 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BE2pnAe007652 for virtualization@FreeBSD.org; Sun, 14 Dec 2025 02:51:49 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: virtualization@FreeBSD.org Subject: [Bug 290920] FreeBSD 15 Regression: BHyve PCI Passthrough Broken on 15-STABLE (No GSI/Interrupt Remapping Failure) Date: Sun, 14 Dec 2025 02:51:47 +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: 15.0-STABLE X-Bugzilla-Keywords: regression, uefi X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: dan@sunsaturn.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: virtualization@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: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290920 --- Comment #27 from dan@sunsaturn.com --- (In reply to Bojan Novkovi=C4=87 from comment #25) Works perfectly, thank you! This patch successfully resolves the PCI passthrough failure (previously observed as 'PCI INT A: no GSI') for multiple device types, confirming the IOMMU mapping issue in vmm.c is corrected. Testing Confirms Passthrough for: * **NVIDIA GPU Passthrough** (Tesla V100) * **USB Controller Passthrough** (via a PCI-e USB controller hosting Zigbee/Z-Wave dongles) --- **Testing Procedure** The environment was fully synchronized after patching vmm.c and reverting t= he previous libvmmapi workaround. 1. Reverted local libvmmapi.c change to original source (restoring the userland to a clean state). 2. Cleaned source, applied the new kernel patch, built, and installed. cd /usr/src git pull make clean cleanworld patch -p1 -d /usr/src < /root/freebsd-usb3.patch make -j$(sysctl -n hw.ncpu) buildworld make -j$(sysctl -n hw.ncpu) buildkernel make installkernel shutdown -r now etcupdate -p cd /usr/src; make installworld etcupdate -B make -DBATCH_DELETE_OLD_FILES delete-old delete-old-libs # Reverted the kernel patch for clean future git pulls: patch -p1 -R -d /usr/src < /root/freebsd-usb3.patch shutdown -r now --- **Results (Inside Linux Guest VM)** **1. GPU Passthrough Validation (nvidia-smi)** ubuntu:/data/remote/sunsaturn/home/dan # nvidia-smi Sat Dec 13 20:48:48 2025 =20=20=20 +--------------------------------------------------------------------------= ---------------+ | NVIDIA-SMI 580.95.05 Driver Version: 580.95.05 CUDA Versi= on: 13.0 | =20=20=20 +-----------------------------------------+------------------------+-------= ---------------+ | GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap |=20=20=20=20=20=20= =20=20=20=20=20 Memory-Usage | GPU-Util Compute M. | | | = |=20=20=20 MIG M. | =20=20=20 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | 0 Tesla V100-PCIE-16GB Off | 00000000:00:06.0 Off |= =20=20=20=20 0 | | N/A 49C P0 46W / 250W | 1272MiB / 16384MiB= |=20=20 0% Default | | | = |=20=20=20 N/A | =20=20=20 +-----------------------------------------+------------------------+-------= ---------------+ =20=20=20 +--------------------------------------------------------------------------= ---------------+ | Processes:=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 | | GPU GI CI PID Type Process name=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 GPU Memory | | ID ID=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 Usage | =20=20=20 |=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D| | 0 N/A N/A 1193 C python3=20=20=20=20=20=20=20=20= =20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20 1268MiB | =20=20=20 +--------------------------------------------------------------------------= ---------------+ ubuntu:/data/remote/sunsaturn/home/dan # **2. USB Passthrough Validation (lsusb output)** # lsusb Bus 005 Device 001: ID 1d6b:0002 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 003 Device 001: ID 1d6b:0002 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 001 Device 001: ID 1d6b:0002 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 006 Device 001: ID 1d6b:0003 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 001 Device 002: ID 303a:4001 Nabu Casa ZWA-2 Bus 004 Device 001: ID 1d6b:0003 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 002 Device 001: ID 1d6b:0003 Linux 6.12.51-haos xhci-hcd xHCI Host Controller Bus 003 Device 002: ID 10c4:ea60 Itead Sonoff Zigbee 3.0 USB Dongle Plu= s V2 Bus 006 Device 002: ID fb5d:0001 BHYVE HID Tablet # This fix appears ready for commitment. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sun Dec 14 11:11:44 2025 X-Original-To: virtualization@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 4dTgW5311mz6JyFg for ; 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charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Discussion List-Archive: https://lists.freebsd.org/archives/freebsd-virtualization List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-virtualization@freebsd.org Sender: owner-freebsd-virtualization@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D283215 Quentin Th=C3=A9bault changed: What |Removed |Added ---------------------------------------------------------------------------- Hardware|Any |amd64 --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Sun Dec 14 21:00:42 2025 X-Original-To: virtualization@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 4dTwZf6Kh4z6Kr9x for ; Sun, 14 Dec 2025 21:00:42 +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" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dTwZf2xzxz3T2L for ; 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boundary="17657460422.692B09C4.2860" Content-Transfer-Encoding: 7bit --17657460422.692B09C4.2860 Date: Sun, 14 Dec 2025 21:00:42 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To view an individual PR, use: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id). The following is a listing of current problems submitted by FreeBSD users, which need special attention. These represent problem reports covering all versions including experimental development code and obsolete releases. Status | Bug Id | Description ------------+-----------+--------------------------------------------------- New | 289848 | Enable by default BHYVE_SNAPSHOT 1 problems total for which you should take action. --17657460422.692B09C4.2860 Date: Sun, 14 Dec 2025 21:00:42 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" 
The following is a listing of current problems submitted by FreeBSD users,
which need special attention. These represent problem reports covering
all versions including experimental development code and obsolete releases.

Status      |    Bug Id | Description
------------+-----------+---------------------------------------------------
New         |    289848 | Enable by default BHYVE_SNAPSHOT

1 problems total for which you should take action.
--17657460422.692B09C4.2860--