Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261457AbUJXMfz (ORCPT ); Sun, 24 Oct 2004 08:35:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261459AbUJXMfy (ORCPT ); Sun, 24 Oct 2004 08:35:54 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:25831 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S261457AbUJXMfi (ORCPT ); Sun, 24 Oct 2004 08:35:38 -0400 Date: Sun, 24 Oct 2004 14:30:19 +0200 From: Jens Axboe To: Lorenzo Allegrucci Cc: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: 2.6.9-mm1 oops Message-ID: <20041024123016.GA31870@suse.de> References: <200410231731.21778.l_allegrucci@yahoo.it> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200410231731.21778.l_allegrucci@yahoo.it> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2516 Lines: 56 On Sat, Oct 23 2004, Lorenzo Allegrucci wrote: > > 100% reproducible with elevator=cfq but not with the other io schedulers? > Unable to handle kernel NULL pointer dereference at virtual address 00000000 > printing eip: > c013f2c7 > *pde = 00000000 > Oops: 0000 [#1] > PREEMPT > Modules linked in: ipv6 dm_mod emu10k1 sound soundcore ac97_codec unix > CPU: 0 > EIP: 0060:[put_page+7/144] Not tainted VLI > EFLAGS: 00010282 (2.6.9-mm1) > EIP is at put_page+0x7/0x90 > eax: 00000000 ebx: df047400 ecx: 00000000 edx: 00000000 > esi: 00000000 edi: 00000000 ebp: df047400 esp: cadd0c80 > ds: 007b es: 007b ss: 0068 > Process diotest4 (pid: 4498, threadinfo=cadd0000 task=de712a40) > Stack: df047400 c0178d50 00000000 00000000 c0179c91 df047400 00000001 c01b391b > c86b6b00 cb0c9b80 cadd0d1c cb0c9c38 c019d31e cee0b0b0 00000000 00000000 > 00003000 00000000 df047400 00000000 08051000 0000000c c017a182 00000001 > Call Trace: > [dio_cleanup+48/64] dio_cleanup+0x30/0x40 > [direct_io_worker+817/1568] direct_io_worker+0x331/0x620 > [journal_put_journal_head+59/192] journal_put_journal_head+0x3b/0xc0 > [ext3_do_update_inode+366/944] ext3_do_update_inode+0x16e/0x3b0 > [__blockdev_direct_IO+514/752] __blockdev_direct_IO+0x202/0x2f0 > [ext3_direct_io_get_blocks+0/240] ext3_direct_io_get_blocks+0x0/0xf0 > [ext3_direct_IO+201/576] ext3_direct_IO+0xc9/0x240 > [ext3_direct_io_get_blocks+0/240] ext3_direct_io_get_blocks+0x0/0xf0 > [generic_file_direct_IO+121/160] generic_file_direct_IO+0x79/0xa0 > [generic_file_direct_write+134/416] generic_file_direct_write+0x86/0x1a0 > [generic_file_aio_write_nolock+689/1200] generic_file_aio_write_nolock+0x2b1/0x4b0 > [generic_file_aio_write+131/256] generic_file_aio_write+0x83/0x100 > [ext3_file_write+68/224] ext3_file_write+0x44/0xe0 > [do_sync_write+190/240] do_sync_write+0xbe/0xf0 > [autoremove_wake_function+0/96] autoremove_wake_function+0x0/0x60 > [dnotify_parent+162/224] dnotify_parent+0xa2/0xe0 > [do_sync_write+0/240] do_sync_write+0x0/0xf0 > [vfs_write+184/304] vfs_write+0xb8/0x130 > [sys_write+81/128] sys_write+0x51/0x80 > [syscall_call+7/11] syscall_call+0x7/0xb Please provide a test case, or at least a description of the problem. -- Jens Axboe - 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/