Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759251AbXEFVNO (ORCPT ); Sun, 6 May 2007 17:13:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759248AbXEFVNO (ORCPT ); Sun, 6 May 2007 17:13:14 -0400 Received: from proxima.lp0.eu ([85.158.45.36]:50665 "EHLO proxima.lp0.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759241AbXEFVNM (ORCPT ); Sun, 6 May 2007 17:13:12 -0400 Message-ID: <463E44E0.2010308@simon.arlott.org.uk> Date: Sun, 06 May 2007 22:13:04 +0100 From: Simon Arlott User-Agent: Thunderbird 1.5.0.5 (X11/20060819) MIME-Version: 1.0 To: Andrew Morton CC: linux-kernel@vger.kernel.org, linux-dvb@linuxtv.org, satyam.sharma@gmail.com Subject: Re: 2.6.21-mm1 References: <20070505014955.8f3990b5.akpm@linux-foundation.org> <463DED69.4020507@simon.arlott.org.uk> <20070506130821.b6bed03b.akpm@linux-foundation.org> In-Reply-To: <20070506130821.b6bed03b.akpm@linux-foundation.org> X-Enigmail-Version: 0.94.1.2 OpenPGP: id=89C93563 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2914 Lines: 62 On 06/05/07 21:08, Andrew Morton wrote: > On Sun, 06 May 2007 15:59:53 +0100 Simon Arlott wrote: > >> On 05/05/07 09:49, Andrew Morton wrote: >>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21/2.6.21-mm1/ >> I'm currently in the middle of a bisect over the last week of commits to linus' Don't accidentally switch from SLAB to SLOB. >> tree, but I got the following with -mm1 that isn't showing up in the latest >> 2.6.21-git: >> >> [ 15.644778] BUG: sleeping function called from invalid context at kernel/mutex.c:86 >> [ 15.644873] in_atomic():1, irqs_disabled():1 >> [ 15.644882] 2 locks held by modprobe/2765: >> [ 15.644889] #0: (devlist_lock){--..}, at: [] mutex_lock+0x1f/0x30 >> [ 15.645058] #1: (modlist_lock){....}, at: [] __symbol_get+0x1d/0x90 >> [ 15.645207] irq event stamp: 11772 >> [ 15.645271] hardirqs last enabled at (11771): [] slab_free+0xc3/0x200 >> [ 15.645289] hardirqs last disabled at (11772): [] _spin_lock_irqsave+0x16/0x60 >> [ 15.645364] softirqs last enabled at (11216): [] __do_softirq+0x96/0xb0 >> [ 15.645439] softirqs last disabled at (11211): [] do_softirq+0x82/0x100 >> [ 15.645517] [] show_trace_log_lvl+0x1a/0x30 >> [ 15.645586] [] show_trace+0x12/0x20 >> [ 15.645654] [] dump_stack+0x15/0x20 >> [ 15.645665] [] __might_sleep+0xcd/0xf0 >> [ 15.645737] [] mutex_lock+0x18/0x30 >> [ 15.645806] [] sysfs_create_link+0x6c/0x130 >> [ 15.645823] [] use_module+0x11a/0x170 >> [ 15.645892] [] __symbol_get+0x6c/0x90 >> [ 15.645904] [] dvb_init+0x98c/0xd70 [saa7134_dvb] >> [ 15.645984] [] mpeg_ops_attach+0x3d/0x50 >> [ 15.646058] [] saa7134_ts_register+0x29/0x70 >> [ 15.646070] [] dvb_register+0x10/0x12 [saa7134_dvb] >> [ 15.646141] [] sys_init_module+0xf7/0x150 >> [ 15.646153] [] sysenter_past_esp+0x5f/0x99 >> [ 15.646221] ======================= > > Looks like a locking error in the DVB code. > >> And this fantastic Oops: >> [ 40.965119] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000080 >> [ 40.965252] printing eip: >> [ 40.965252] b016d4a5 >> [ 40.965300] *pde = 00000000 >> [ 40.965352] Oops: 0000 [#1] >> [ 40.965467] PREEMPT >> >> It occurs when racoon is started so must be IPSEC related, I'll have more information >> once I finish bisecting and merge -mm1 again. > > Thanks. Unfortunately I can't reproduce either of these anymore... -- Simon Arlott - 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/