From owner-freebsd-current@freebsd.org Tue Jul 21 13:39:19 2015 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1872D9A50BB for ; Tue, 21 Jul 2015 13:39:19 +0000 (UTC) (envelope-from kostikbel@gmail.com) 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 F114911AA for ; Tue, 21 Jul 2015 13:39:18 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: by mailman.ysv.freebsd.org (Postfix) id ED67F9A50B9; Tue, 21 Jul 2015 13:39:18 +0000 (UTC) Delivered-To: current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id EC0469A50B7 for ; Tue, 21 Jul 2015 13:39:18 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 78AA611A9 for ; Tue, 21 Jul 2015 13:39:18 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kostik@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id t6LDd7dq086858 (version=TLSv1 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Tue, 21 Jul 2015 16:39:07 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.9.2 kib.kiev.ua t6LDd7dq086858 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id t6LDd7fK086857; Tue, 21 Jul 2015 16:39:07 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Tue, 21 Jul 2015 16:39:07 +0300 From: Konstantin Belousov To: David Wolfskill , current@freebsd.org Subject: Re: panic: witness_warn head/amd64 @r285741 on 1 of 2 machines Message-ID: <20150721133907.GR2404@kib.kiev.ua> References: <20150721125734.GF1217@albert.catwhisker.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150721125734.GF1217@albert.catwhisker.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jul 2015 13:39:19 -0000 On Tue, Jul 21, 2015 at 05:57:34AM -0700, David Wolfskill wrote: > My laptop had no problems, but the build machine has a panic that > appears quite reproducible (4 "successes" out of 4 tries); here's a bit > from the core.txt file: There must be kernel messages before the panic string. They are crusial to understand what is going on. > > freebeast.catwhisker.org dumped core - see /var/crash/vmcore.1 > > Tue Jul 21 05:36:11 PDT 2015 > > FreeBSD freebeast.catwhisker.org 11.0-CURRENT FreeBSD 11.0-CURRENT #1787 r285741M/285741:1100077: Tue Jul 21 04:48:37 PDT 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC amd64 > > panic: witness_warn