Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932604AbVKPVIZ (ORCPT ); Wed, 16 Nov 2005 16:08:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932605AbVKPVIZ (ORCPT ); Wed, 16 Nov 2005 16:08:25 -0500 Received: from numenor.qualcomm.com ([129.46.51.58]:47294 "EHLO numenor.qualcomm.com") by vger.kernel.org with ESMTP id S932604AbVKPVIY (ORCPT ); Wed, 16 Nov 2005 16:08:24 -0500 Message-ID: <437B9FAC.4090809@qualcomm.com> Date: Wed, 16 Nov 2005 13:07:56 -0800 From: Max Krasnyansky User-Agent: Thunderbird 1.4.1 (X11/20051006) MIME-Version: 1.0 To: Badari Pulavarty CC: Andrew Morton , linux-kernel@vger.kernel.org, hugh@veritas.com, Dave Airlie Subject: Re: 2.6.14 X spinning in the kernel References: <1132012281.24066.36.camel@localhost.localdomain> <20051114161704.5b918e67.akpm@osdl.org> <1132015952.24066.45.camel@localhost.localdomain> <20051114173037.286db0d4.akpm@osdl.org> <437A6609.4050803@us.ibm.com> In-Reply-To: <437A6609.4050803@us.ibm.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1315 Lines: 36 Badari Pulavarty wrote: >> Badari Pulavarty wrote: >> >>> On Mon, 2005-11-14 at 16:17 -0800, Andrew Morton wrote: >>> >>>> Badari Pulavarty wrote: >>>> >>>>> My 2-cpu EM64T machine started showing this problem again on 2.6.14. >>>>> On some reboots, X seems to spin in the kernel forever. >>>>> >>>>> sysrq-t output shows nothing. >>>>> >>>>> X R running task 0 3607 3589 3903 >>>>> (L-TLB) >>>>> >>>>> top shows: >>>>> 3607 root 25 0 0 0 0 R 99.1 0.0 262:04.69 X >>>>> >>>>> >>>>> So, I wrote a module to do smp_call_function() on all CPUs >>>>> to show stacks on them. CPU0 seems to be spinning in exit_mmap(). >>>>> I did this multiple times to collect stacks few times. >>>>> >>>>> Is this a known issue ? I've seen similar problems on dual Opteron HP xw9300/Radeon 7000 PCI box with 2.6.11.12 and latest X from Fedora x86-64 YUM repos. I haven't done any traces but it sounds like the same problem (ie X server is spinning). Disabling DRI in xorg.conf fixed it for me. Max - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/