From owner-freebsd-hackers@FreeBSD.ORG Thu Apr 29 11:20:35 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 E306C106566B for ; Thu, 29 Apr 2010 11:20:35 +0000 (UTC) (envelope-from decke@FreeBSD.org) Received: from mail.itac.at (mail.itac.at [91.205.172.9]) by mx1.freebsd.org (Postfix) with ESMTP id 639158FC19 for ; Thu, 29 Apr 2010 11:20:35 +0000 (UTC) Received: from [91.205.172.21] (helo=webmail.bluelife.at) by mail.itac.at with esmtpa (Exim 4.63) (envelope-from ) id 1O7RBX-0008KR-LC; Thu, 29 Apr 2010 12:41:35 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Date: Thu, 29 Apr 2010 12:41:36 +0200 From: Bernhard Froehlich To: In-Reply-To: <4BD8980A.9000706@rawbw.com> References: <4BD8980A.9000706@rawbw.com> Message-ID: <6ee1a3134e128d8a0836be552e0c9f09@bluelife.at> X-Sender: decke@FreeBSD.org User-Agent: RoundCube Webmail/0.4-beta X-Spam-Score: 4.0 (++++) X-Spam-Report: Spam detection software, running on the system "mail.itac.at", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: On Wed, 28 Apr 2010 13:18:18 -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 [...] Content analysis details: (4.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP 3.4 FH_DATE_PAST_20XX The date is grossly in the future. 2.4 DNS_FROM_OPENWHOIS RBL: Envelope sender listed in bl.open-whois.org. -0.3 AWL AWL: From: address is in the auto white-list Cc: freebsd-hackers@freebsd.org, vbox@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: Thu, 29 Apr 2010 11:20:36 -0000 On Wed, 28 Apr 2010 13:18:18 -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? Mario Lobo currently sees something similar and has already tracked it down to probably be a drm/Xorg issue. It does work fine for him if he uses the virtualbox-ose-devel ports and VNC so without running an xserver on that machine. To debug this it's probably the best to try it with a serial console and the descriptions in the developers handbook. http://www.freebsd.org/doc/en/books/handbook/serialconsole-setup.html http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-online-gdb.html -- Bernhard Froehlich http://www.bluelife.at/