Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932407AbYBUMkf (ORCPT ); Thu, 21 Feb 2008 07:40:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761545AbYBUMkZ (ORCPT ); Thu, 21 Feb 2008 07:40:25 -0500 Received: from smtp2.linux-foundation.org ([207.189.120.14]:38326 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755501AbYBUMkW (ORCPT ); Thu, 21 Feb 2008 07:40:22 -0500 Date: Thu, 21 Feb 2008 04:38:28 -0800 From: Andrew Morton To: Tilman Schmidt Cc: linux-kernel@vger.kernel.org, Christoph Hellwig , Dave Hansen Subject: Re: 2.6.25-rc2-mm1 - several bugs and a crash Message-Id: <20080221043828.bcd5cbce.akpm@linux-foundation.org> In-Reply-To: <47BC982C.7050402@imap.cc> References: <20080216002522.9c4bd0fb.akpm@linux-foundation.org> <47BC982C.7050402@imap.cc> X-Mailer: Sylpheed 2.4.7 (GTK+ 2.12.1; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2078 Lines: 37 On Wed, 20 Feb 2008 22:14:20 +0100 Tilman Schmidt wrote: > Ok, so here's my story on 2.6.25-rc2-mm1: > > Built fine on my Pentium D in 32 bit mode, booted too, although > complaining once already while unpacking the initramfs: > > <0>[ 0.069176] BUG: spinlock bad magic on CPU#0, swapper/0 > <0>[ 0.069324] lock: c2c19480, .magic: 00000000, .owner: swapper/0, .owner_cpu: 0 > <4>[ 0.069559] Pid: 0, comm: swapper Not tainted 2.6.25-rc2-mm1-testing #1 > <4>[ 0.069710] [spin_bug+129/140] spin_bug+0x81/0x8c > <4>[ 0.069907] [_raw_spin_unlock+30/118] _raw_spin_unlock+0x1e/0x76 > <4>[ 0.069997] [_spin_unlock+34/65] _spin_unlock+0x22/0x41 > <4>[ 0.070194] [mnt_want_write+103/138] mnt_want_write+0x67/0x8a > <4>[ 0.070390] [sys_mkdirat+139/219] sys_mkdirat+0x8b/0xdb > <4>[ 0.070584] [clean_path+27/79] ? clean_path+0x1b/0x4f > <4>[ 0.070829] [trace_hardirqs_on+11/13] ? trace_hardirqs_on+0xb/0xd > <4>[ 0.071185] [sys_mkdir+21/23] sys_mkdir+0x15/0x17 > <4>[ 0.071378] [do_name+279/440] do_name+0x117/0x1b8 > <4>[ 0.071570] [write_buffer+34/49] write_buffer+0x22/0x31 > <4>[ 0.071763] [flush_window+105/184] flush_window+0x69/0xb8 > <4>[ 0.071996] [unpack_to_rootfs+1585/2238] unpack_to_rootfs+0x631/0x8be > <4>[ 0.072192] [trace_hardirqs_on_caller+248/301] ? trace_hardirqs_on_caller+0xf8/0x12d > <4>[ 0.072440] [restore_nocheck_notrace+0/16] ? restore_nocheck_notrace+0x0/0x10 > <4>[ 0.072689] [populate_rootfs+37/270] populate_rootfs+0x25/0x10e > <4>[ 0.072886] [alternative_instructions+344/349] ? alternative_instructions+0x158/0x15d > <4>[ 0.073139] [start_kernel+840/858] start_kernel+0x348/0x35a > <4>[ 0.073335] ======================= (net-related cc's removed) This look like a startup ordering bug in mnt_want_write(). -- 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/