From owner-freebsd-bugs@freebsd.org Thu Feb 20 17:04:47 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 663DD23F449 for ; Thu, 20 Feb 2020 17:04:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 48Ngtl1qmQz3F2x for ; Thu, 20 Feb 2020 17:04:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 3C8CF23F448; Thu, 20 Feb 2020 17:04:47 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 3C52B23F447 for ; Thu, 20 Feb 2020 17:04:47 +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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48Ngtl0xP3z3F2t for ; Thu, 20 Feb 2020 17:04:47 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 02C6B2502C for ; Thu, 20 Feb 2020 17:04:47 +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 01KH4kvk034628 for ; Thu, 20 Feb 2020 17:04:46 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 01KH4kF3034627 for bugs@FreeBSD.org; Thu, 20 Feb 2020 17:04:46 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: bugs@FreeBSD.org Subject: [Bug 244247] Kernel panic when removing 700 vlans via netgraph Date: Thu, 20 Feb 2020 17:04:46 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: admin@support.od.ua X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@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 attachments.created Message-ID: 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-bugs@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 20 Feb 2020 17:04:47 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244247 Bug ID: 244247 Summary: Kernel panic when removing 700 vlans via netgraph Product: Base System Version: 12.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: admin@support.od.ua Created attachment 211776 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D211776&action= =3Dedit ifconfig output Kernel panic when removing 700 vlans via netgraph I have a virtual machine on Virtualbox with 2 core CPU and 2 GP RAM. I have non-GENERIC kernel. Problem Source - PR 187835. # uname -a FreeBSD core.domain.com 12.1-STABLE FreeBSD 12.1-STABLE r358094 SUPPORT-12-= 1-0=20 amd64 # kldstat Id Refs Address Size Name 1 10 0xffffffff80200000 25a7a78 kernel 2 1 0xffffffff827a8000 3ad5b8 zfs.ko 3 2 0xffffffff82b56000 a3f0 opensolaris.ko How to play kernel panic: 1) Add tuning sysctl #sysctl net.graph.recvspace=3D2048000 #sysctl net.graph.maxdgram=3D2048000 #sysctl kern.ipc.nmbclusters=3D4000000 #sysctl kern.ipc.maxsockbuf=3D83886080 2) adding 564 vlan #cat << EOF >> test_creating_vlan.sh #!/bin/sh # man ng_vlan ETHER_IF=3Dem2 ngctl -f- <> test_creating_vlan.2.sh #!/bin/sh # man ng_vlan ETHER_IF=3Dem2 ngctl -f- <