From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: Re: Hang in fb_notifier_call_chain with nvidia framebuffer Date: Sat, 7 Oct 2006 23:01:29 -0700 Message-ID: <20061007230129.323ac807.akpm@osdl.org> References: <45206777.7020405@saville.com> <1159808447.4652.6.camel@mhcln03> <4521E326.2000406@saville.com> <1159882225.2891.525.camel@laptopd505.fenrus.org> <4523E09C.9000609@saville.com> Reply-To: linux-fbdev-devel@lists.sourceforge.net Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1GWRjN-0004Za-3p for linux-fbdev-devel@lists.sourceforge.net; Sat, 07 Oct 2006 23:01:45 -0700 Received: from smtp.osdl.org ([65.172.181.4]) by mail.sourceforge.net with esmtps (TLSv1:DES-CBC3-SHA:168) (Exim 4.44) id 1GWRjL-0007fy-P9 for linux-fbdev-devel@lists.sourceforge.net; Sat, 07 Oct 2006 23:01:45 -0700 In-Reply-To: <4523E09C.9000609@saville.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Wink Saville Cc: Matthias Hentges , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Arjan van de Ven On Wed, 04 Oct 2006 09:26:04 -0700 Wink Saville wrote: > Attached in the zip file is: > > log-hang1.txt -> log showing hang > cfg-hang1 -> config file for hang condition > cfg-ok -> config file that works > fbmem.c -> Modifications to register_framebuffer > > To possibly assist I turned on debugging in nvidia.c and found that it > hung in the call to register_framebuffer. I then added some additional > debug in that routine and it appears the hang occurs in the call to > fb_notifier_call_chain. > > Please let me know what else maybe needed. Please: - get sysrq working: set CONFIG_MAGIC_SYSRQ=y, rebuild, reboot echo 1 > /proc/sys/kernel/sysrq dmesg -n 8 - make it hang - Hit alt-sysrq-T - Send us the resulting output Thanks. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV