From owner-freebsd-net@freebsd.org Mon Aug 20 17:44:37 2018 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 79C4E1076A2B for ; Mon, 20 Aug 2018 17:44:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 177C67911B for ; Mon, 20 Aug 2018 17:44:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id CDB7D1076A1E; Mon, 20 Aug 2018 17:44:36 +0000 (UTC) Delivered-To: net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id ABD961076A1C for ; Mon, 20 Aug 2018 17:44:36 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4C1FB7910B for ; Mon, 20 Aug 2018 17:44:36 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 9ABAC266B9 for ; Mon, 20 Aug 2018 17:44:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w7KHiZio073564 for ; Mon, 20 Aug 2018 17:44:35 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w7KHiZ4M073563 for net@FreeBSD.org; Mon, 20 Aug 2018 17:44:35 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 230510] iflib/vlan panic: sleeping thread Date: Mon, 20 Aug 2018 17:44:35 +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: panic X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: bugzilla.freebsd@omnilan.de X-Bugzilla-Status: In Progress 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-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Aug 2018 17:44:37 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230510 --- Comment #3 from Harald Schmalzbauer --- Kudos! No more LORs and the described problem is solved with D16808 against r33809= 3. But vlan(4) doesn't work as expected. I have to reduce MTU to 1468 on the vlan(4) device to get frames passed out. I haven't really checked much, since there were some offloading changes recently and I'm not sure if if_valn(4) is known to be under rework/broken. I have if_em(4) (I217-V) as parent device. For the moment I haven't disabled any offloading feature, so the interfaces involved read like this: em0: flags=3D8843 metric 0 mtu 9000 options=3D81249b ether 56:be:f7:0b:d7:4e hwaddr=20 inet 192.0.2.1 netmask 0xffffff00 broadcast 192.0.2.255=20 inet6 2001:db8:1::3:1 prefixlen 64=20 inet6 fe80::54be:f7ff:fe0b:d74e%em0 prefixlen 64 scopeid 0x1=20 media: Ethernet autoselect (1000baseT ) status: active nd6 options=3D21 vlegn: flags=3D8843 metric 0 mtu 14= 68 options=3D403 ether 56:be:f7:0b:d7:4e inet 169.254.0.1 netmask 0xffffff00 broadcast 169.254.0.255=20 inet6 2001:db8:2::3:2 prefixlen 64=20 inet6 fe80::54be:f7ff:fe0b:d74e%vlegn prefixlen 64 scopeid 0x3=20 groups: vlan=20 vlan: 1234 vlanpcp: 0 parent interface: em0 media: Ethernet autoselect (1000baseT ) status: active nd6 options=3D21 Usually vlegn (if_vlan(4) child of em0) should work with the inherited MTU = of 9000 Shall I file a different PR? And test with different offloading scenarios before doing so? Thanks, -harry --=20 You are receiving this mail because: You are the assignee for the bug.=