Date: Thu, 23 Jul 2020 09:19:45 +0200 From: "Kristof Provost" <kp@FreeBSD.org> To: "John-Mark Gurney" <jmg@funkthat.com> Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: Re: somewhat reproducable vimage panic Message-ID: <2FFC49F9-83DE-4FA1-A47F-1D8A7AF4B241@FreeBSD.org> In-Reply-To: <20200722221509.GI4213@funkthat.com> References: <20200721091654.GC4213@funkthat.com> <20200721113153.42d83119@x23> <20200721202323.GE4213@funkthat.com> <38F5A3A6-B578-4BA4-8F69-C248163CB6E0@libassi.se> <20200722060514.GF4213@funkthat.com> <20200722193443.GG4213@funkthat.com> <6C149617-55BB-4A87-B993-195E5E133790@lists.zabbadoz.net> <20200722221509.GI4213@funkthat.com>
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On 23 Jul 2020, at 0:15, John-Mark Gurney wrote: > So, it's pretty easy to trigger, just attach a couple USB ethernet > adapters, in my case, they were ure, but likely any two spare ethernet > interfaces will work, and wire them back to back.. > I’ve been able to trigger it using epair as well: `sudo sh testinterfaces.txt epair0a epair0b` I did have to comment out the waitcarrier() check. Best regards, Kristof From owner-freebsd-net@freebsd.org Thu Jul 23 07:28:35 2020 Return-Path: <owner-freebsd-net@freebsd.org> Delivered-To: freebsd-net@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 CB2F63747C1 for <freebsd-net@mailman.nyi.freebsd.org>; Thu, 23 Jul 2020 07:28:35 +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 4BC3pq55Wyz4BJQ for <freebsd-net@freebsd.org>; Thu, 23 Jul 2020 07:28:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id AEE1C3747C0; Thu, 23 Jul 2020 07:28:35 +0000 (UTC) Delivered-To: net@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 AEA963749A7 for <net@mailman.nyi.freebsd.org>; Thu, 23 Jul 2020 07:28:35 +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 "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4BC3pq3yN0z4BCm for <net@FreeBSD.org>; Thu, 23 Jul 2020 07:28:35 +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) 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 6A19015335 for <net@FreeBSD.org>; Thu, 23 Jul 2020 07:28:35 +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 06N7SZUL006302 for <net@FreeBSD.org>; Thu, 23 Jul 2020 07:28:35 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 06N7SZhO006301 for net@FreeBSD.org; Thu, 23 Jul 2020 07:28:35 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 248172] if_tuntap(4): OpenVPN configuring tun/tap devices ends up with IFDISABLED interfaces Date: Thu, 23 Jul 2020 07:28:35 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-RELEASE X-Bugzilla-Keywords: needs-qa, regression X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: gert@greenie.muc.de X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: kevans@freebsd.org X-Bugzilla-Flags: maintainer-feedback? mfc-stable12? X-Bugzilla-Changed-Fields: Message-ID: <bug-248172-7501-MGJMnsq4r7@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-248172-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-248172-7501@https.bugs.freebsd.org/bugzilla/> 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: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>; List-Post: <mailto:freebsd-net@freebsd.org> List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=subscribe> X-List-Received-Date: Thu, 23 Jul 2020 07:28:35 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248172 --- Comment #9 from Gert Doering <gert@greenie.muc.de> --- So. I have a nice test program now which can be run in a loop and then loo= ked at later. As I said it's somewhat spurious on my system - sometimes it triggers 10 ti= mes in a row, then 20 times not at all. If it triggers, the output looks like this: cc -o tester -Wall tester.c sudo ./tester tun0 /dev/tun0 open ok, fd=3D3 run cmd: 'ifconfig tun0 inet6 fd00:abcd:204:4::1001/64 mtu 1500 up' read 296 bytes, time since start=3D0s tun0: flags=3D8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500 options=3D80000<LINKSTATE> inet6 fe80::250:56ff:fe9c:dffb%tun0 prefixlen 64 tentative scopeid = 0x3 inet6 fd00:abcd:204:4::1001 prefixlen 64 tentative groups: tun nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL> Opened by PID 62433 read 307 bytes, time since start=3D1s tun0: flags=3D8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500 options=3D80000<LINKSTATE> inet6 fe80::250:56ff:fe9c:dffb%tun0 prefixlen 64 tentative scopeid = 0x3 inet6 fd00:abcd:204:4::1001 prefixlen 64 tentative groups: tun nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> Opened by PID 62433 *** FOUND *** (the tester program will loop for 10 seconds, run "ifconfig $dev" in a pipe, and print "FOUND!" if it found IFDISABLED in the output - which could be extended to do something else on-trigger) Attachment coming. --=20 You are receiving this mail because: You are on the CC list for the bug.=
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