Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756642Ab0BOWzJ (ORCPT ); Mon, 15 Feb 2010 17:55:09 -0500 Received: from mtagate6.uk.ibm.com ([194.196.100.166]:34233 "EHLO mtagate6.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756404Ab0BOWzH (ORCPT ); Mon, 15 Feb 2010 17:55:07 -0500 From: Christian Borntraeger Organization: IBM To: Dave Airlie , Ben Skeggs Subject: Re: [git pull] drm Date: Mon, 15 Feb 2010 23:55:03 +0100 User-Agent: KMail/1.12.4 (Linux/2.6.33-rc8-prerelease; KDE/4.3.4; x86_64; ; ) Cc: torvalds@linux-foundation.org, dri-devel@lists.sf.net, linux-kernel@vger.kernel.org, Maarten Maathuis , Marcin Slusarz References: <201002151053.48681.borntraeger@de.ibm.com> In-Reply-To: <201002151053.48681.borntraeger@de.ibm.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201002152355.03161.borntraeger@de.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5862 Lines: 53 Am Montag 15 Februar 2010 10:53:48 schrieb Christian Borntraeger: I think this regression is triggered by commit 39c9bfb453b748ce220ceefacbe2a5c19fabf67b Author: Ben Skeggs Date: Tue Feb 9 10:22:29 2010 +1000 drm/nv50: prevent multiple init tables being parsed at the same time One possible solution is to replace the spinlock bios->lock with a mutex, but there are others ways of fixing this BUG. CCing Ben. > [ 2.175437] BUG: scheduling while atomic: nouveau/0/753/0x00000002 > [ 2.175439] Modules linked in: > [ 2.175442] Pid: 753, comm: nouveau/0 Not tainted 2.6.33-rc8-prerelease #27 > [ 2.175443] Call Trace: > [ 2.175451] [] ? schedule+0x86a/0x880 > [ 2.175454] [] ? vsnprintf+0xe0/0x9a0 > [ 2.175456] [] ? schedule_timeout+0x15c/0x250 > [ 2.175460] [] ? process_timeout+0x0/0x10 > [ 2.175462] [] ? msleep+0x18/0x30 > [ 2.175466] [] ? init_time+0x51/0x90 > [ 2.175468] [] ? parse_init_table+0xcb/0x1a0 > [ 2.175470] [] ? init_sub_direct+0x4a/0xd0 > [ 2.175472] [] ? parse_init_table+0xcb/0x1a0 > [ 2.175474] [] ? nouveau_bios_run_init_table+0x5f/0xa0 > [ 2.175476] [] ? nouveau_bios_run_display_table+0x25c/0x500 > [ 2.175480] [] ? nv50_display_irq_handler_bh+0x0/0x410 > [ 2.175483] [] ? nv50_display_irq_handler_bh+0x2ac/0x410 > [ 2.175485] [] ? nv50_display_irq_handler_bh+0x0/0x410 > [ 2.175487] [] ? worker_thread+0x16b/0x250 > [ 2.175490] [] ? autoremove_wake_function+0x0/0x30 > [ 2.175492] [] ? worker_thread+0x0/0x250 > [ 2.175494] [] ? worker_thread+0x0/0x250 > [ 2.175496] [] ? kthread+0x8e/0xa0 > [ 2.175499] [] ? kernel_thread_helper+0x4/0x10 > [ 2.175501] [] ? kthread+0x0/0xa0 > [ 2.175503] [] ? kernel_thread_helper+0x0/0x10 > [ 2.182407] Console: switching to colour frame buffer device 240x75 > [ 2.186632] fb0: nouveaufb frame buffer device > [ 2.186633] registered panic notifier > [ 2.186636] [drm] Initialized nouveau 0.0.15 20090420 for 0000:01:00.0 on minor 0 > ... > -- 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/