From mboxrd@z Thu Jan 1 00:00:00 1970 From: Darren Hart Subject: Re: [ANNOUNCE] 3.0-rt3 Date: Tue, 26 Jul 2011 10:01:56 -0700 Message-ID: <4E2EF304.30601@linux.intel.com> References: <4E2C2ED6.4040904@gmail.com> <4E2DEC1A.5070109@linux.intel.com> <4E2E57FF.7030206@linux.intel.com> <4E2EA89A.2020007@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Thomas Gleixner , LKML , linux-rt-users To: Maarten Lankhorst Return-path: Received: from mga03.intel.com ([143.182.124.21]:2530 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752926Ab1GZRB4 (ORCPT ); Tue, 26 Jul 2011 13:01:56 -0400 In-Reply-To: <4E2EA89A.2020007@gmail.com> Sender: linux-rt-users-owner@vger.kernel.org List-ID: On 07/26/2011 04:44 AM, Maarten Lankhorst wrote: > On 07/26/2011 08:00 AM, Darren Hart wrote: >> On 07/25/2011 03:20 PM, Darren Hart wrote: >>> On 07/24/2011 09:12 AM, Thomas Gleixner wrote: >>>> On Sun, 24 Jul 2011, Maarten Lankhorst wrote: >>> ... >>> >>>>> Also not sure where this one came from: >>>>> [ 37.456688] BUG: spinlock bad magic on CPU#3, threaded-ml/1619 >>>>> [ 37.456690] lock: ffff8801fdc74d50, .magic: 00000000, .owner: /-1, .owner_cpu: 0 >>>>> [ 37.456692] Pid: 1619, comm: threaded-ml Tainted: G C 3.0.0-rt3-patser+ #39 Maarten, I'm finding fairly little out there on what threaded-ml might be. What I do find suggests 3D visualization and real-time audio playback. Are you working with something like this? If so, which libraries are you using? If not, any idea what this is? >>>>> [ 37.456693] Call Trace: >>>>> [ 37.456697] [] spin_bug+0xa0/0xa8 >>>>> [ 37.456699] [] do_raw_spin_lock+0xa2/0x170 >>>>> [ 37.456702] [] ? get_parent_ip+0x11/0x50 >>>>> [ 37.456704] [] _raw_spin_lock+0x23/0x30 >>>>> [ 37.456706] [] rt_mutex_start_proxy_lock+0x2e/0xd0 >>>>> [ 37.456708] [] futex_requeue+0x47a/0x850 >>>>> [ 37.456710] [] do_futex+0xae/0xb00 Maarten, could you provide the addr2line of the addresses from do_futex to spin_bug ? This will help me trace the path. Thanks, -- Darren Hart Intel Open Source Technology Center Yocto Project - Linux Kernel