From owner-freebsd-hackers@FreeBSD.ORG Wed Apr 28 20:37:22 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7F5C6106566B for ; Wed, 28 Apr 2010 20:37:22 +0000 (UTC) (envelope-from shuvaev@physik.uni-wuerzburg.de) Received: from mailrelay.rz.uni-wuerzburg.de (mailrelay.rz.uni-wuerzburg.de [132.187.3.28]) by mx1.freebsd.org (Postfix) with ESMTP id 2DE458FC21 for ; Wed, 28 Apr 2010 20:37:21 +0000 (UTC) Received: from virusscan.mail (localhost [127.0.0.1]) by mailrelay.mail (Postfix) with ESMTP id 7791A5AE66; Wed, 28 Apr 2010 22:37:20 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by virusscan.mail (Postfix) with ESMTP id 74CDA5AE45; Wed, 28 Apr 2010 22:37:20 +0200 (CEST) X-Virus-Scanned: by amavisd-new at uni-wuerzburg.de Received: from mail.physik.uni-wuerzburg.de (wthp192.physik.uni-wuerzburg.de [132.187.40.192]) by mailmaster.uni-wuerzburg.de (Postfix) with ESMTP id 551F65D075; Wed, 28 Apr 2010 22:37:20 +0200 (CEST) Received: from wep4035 ([132.187.37.35]) by mail.physik.uni-wuerzburg.de (Lotus Domino Release 8.5.1FP2) with ESMTP id 2010042822371878-96736 ; Wed, 28 Apr 2010 22:37:18 +0200 Received: by wep4035 (sSMTP sendmail emulation); Wed, 28 Apr 2010 22:37:18 +0200 Date: Wed, 28 Apr 2010 22:37:18 +0200 From: Alexey Shuvaev To: Yuri Message-ID: <20100428203718.GB38859@wep4035.physik.uni-wuerzburg.de> References: <4BD8980A.9000706@rawbw.com> MIME-Version: 1.0 In-Reply-To: <4BD8980A.9000706@rawbw.com> Organization: Universitaet Wuerzburg User-Agent: Mutt/1.5.20 (2009-06-14) X-MIMETrack: Itemize by SMTP Server on domino1/uni-wuerzburg(Release 8.5.1FP2|March 17, 2010) at 04/28/2010 10:37:19 PM, Serialize by Router on domino1/uni-wuerzburg(Release 8.5.1FP2|March 17, 2010) at 04/28/2010 10:37:20 PM, Serialize complete at 04/28/2010 10:37:20 PM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Cc: freebsd-hackers@freebsd.org Subject: Re: How to troubleshoot why VirtualBox kernel module freezes the system? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Apr 2010 20:37:22 -0000 On Wed, Apr 28, 2010 at 01:18:18PM -0700, Yuri wrote: > VirtualBox kernel module (port emulators/virtualbox-ose-kmod) began > to cause system freezes from some kernel change around the end of > January. > Once the system freezes it has to be rebooted. Soundcard, if it was > playing something, begins to cycle some very short piece. > Nothing is logged into /var/log/messages. > > Is there any way to troubleshoot this, like enabling some kernel > configuation options? > What is normally done in such case? > Should I run system under kernel debugger? But would it detect > something if it's not a SEGV but the freeze? > Trivial suggestion: have you rebuilt virtualbox with new kernel sources? What are the versions of FreeBSD / virtualbox? As a record it is running fine here: ~> uname -a FreeBSD wep4035 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r206758: Sat Apr 17 17:37:46 CEST 2010 root@wep4035:/usr/obj/usr/src/sys/GENERIC amd64 ~> ls /var/db/pkg/virtualbox-ose- virtualbox-ose-3.1.6_2/ virtualbox-ose-kmod-3.1.6/ HTH, Alexey.