From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anisse Astier Subject: [BUG] Oops while mkfs.ext3 in block/writeback Date: Mon, 20 Sep 2010 17:49:42 +0200 Message-ID: <20100920174942.46b3ffc7@destiny.ordissimo> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit To: linux-fsdevel@vger.kernel.org Return-path: Received: from mail-ww0-f42.google.com ([74.125.82.42]:58961 "EHLO mail-ww0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756705Ab0ITPt6 (ORCPT ); Mon, 20 Sep 2010 11:49:58 -0400 Received: by wwi18 with SMTP id 18so363930wwi.1 for ; Mon, 20 Sep 2010 08:49:57 -0700 (PDT) Sender: linux-fsdevel-owner@vger.kernel.org List-ID: Hi, (Please Cc: me since I'm not subscribed to fsdevel) I had this oops on a Toshiba L670D laptop; I was able to reproduce with version 2.6.33.3 and 2.6.31.6 (I know these aren't up-to-date). This happened while running "mkfs.ext3 -O dir_index -L home /dev/sda9". Oops: [ 71.731461] BUG: unable to handle kernel NULL pointer dereference at (null) [ 71.732128] IP: [] __block_write_full_page+0x10f/0x2e0 [ 71.732128] *pde = 00000000 [ 71.732128] Oops: 0000 [#1] SMP [ 71.732128] last sysfs file: /sys/devices/pci0000:00/0000:00:11.0/host0/target0:0:0/0:0:0:0/block/sda/sda9/size [ 71.732128] Modules linked in: ipv6 fuse snd_hda_codec_atihdmi uvcvideo videodev snd_hda_codec_realtek usb_storage video v4l1_compat snd_hda_intel output snd_hda_codec battery ac rtc_cmos snd_hwdep rtc_core snd_pcm rtc_lib snd_timer r8192se_pci snd i2c_piix4 snd_page_alloc i2c_core button processor nfs lockd nfs_acl auth_rpcgss sunrpc smsc95xx usbnet ohci_hcd ehci_hcd usbcore thermal thermal_sys [ 71.732128] [ 71.732128] Pid: 2642, comm: flush-8:0 Not tainted 2.6.35.4 #30 NALAE/Satellite L670D [ 71.732128] EIP: 0060:[] EFLAGS: 00010297 CPU: 1 [ 71.732128] EIP is at __block_write_full_page+0x10f/0x2e0 [ 71.732128] EAX: 00003a9d EBX: 03080313 ECX: 00000002 EDX: 0000000a [ 71.732128] ESI: 00000000 EDI: 00000000 EBP: c145e5e0 ESP: f6ab7dc0 [ 71.732128] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 71.732128] Process flush-8:0 (pid: 2642, ti=f6ab6000 task=f59c63b0 task.ti=f6ab6000) [ 71.790021] Stack: [ 71.790021] c009c1d0 00000001 f05aa2bc 00000400 0d2742e8 00000000 c10900bf c145e5e0 [ 71.790021] <0> f05aa2bc 9d0ba400 00000034 c108e1ca f6ab7f10 c108ccdb c10900bf f6ab7f10 [ 71.790021] <0> f05aa36c f6ab7f10 00000000 00000000 c108e1dd c108ccdb c1056a67 c145e5e0 [ 71.790021] Call Trace: [ 71.790021] [] ? blkdev_get_block+0x0/0xc9 [ 71.790021] [] ? block_write_full_page_endio+0xa6/0xaf [ 71.790021] [] ? end_buffer_async_write+0x0/0xd1 [ 71.790021] [] ? blkdev_get_block+0x0/0xc9 [ 71.790021] [] ? block_write_full_page+0xa/0xc [ 71.790021] [] ? end_buffer_async_write+0x0/0xd1 [ 71.790021] [] ? __writepage+0x8/0x1f [ 71.790021] [] ? write_cache_pages+0x1af/0x267 [ 71.790021] [] ? __writepage+0x0/0x1f [ 71.790021] [] ? generic_writepages+0x16/0x1d [ 71.790021] [] ? do_writepages+0x14/0x20 [ 71.790021] [] ? writeback_single_inode+0xb0/0x272 [ 71.790021] [] ? writeback_sb_inodes+0x128/0x1da [ 71.790021] [] ? writeback_inodes_wb+0xfa/0x10a [ 71.790021] [] ? wb_writeback+0x16c/0x1d2 [ 71.790021] [] ? wb_do_writeback+0x40/0x117 [ 71.790021] [] ? process_timeout+0x0/0x5 [ 71.790021] [] ? bdi_writeback_task+0x2f/0xe8 [ 71.790021] [] ? bdi_start_fn+0x52/0x9e [ 71.790021] [] ? bdi_start_fn+0x0/0x9e [ 71.790021] [] ? kthread+0x5f/0x64 [ 71.790021] [] ? kthread+0x0/0x64 [ 71.790021] [] ? kernel_thread_helper+0x6/0x10 [ 71.790021] Code: d3 e3 f6 c1 20 74 04 89 de 31 db 8b 45 0c 89 04 24 89 c7 3b 74 24 14 72 12 77 06 3b 5c 24 10 76 0a f0 80 27 fd f0 80 0f 01 eb 5c <8b> 07 a8 20 74 05 f6 c4 02 74 51 a8 02 74 4d 8b 54 24 0c 39 57 [ 71.790021] EIP: [] __block_write_full_page+0x10f/0x2e0 SS:ESP 0068:f6ab7dc0 [ 71.790021] CR2: 0000000000000000 [ 71.791599] ---[ end trace ce00a6c6f84b6ee8 ]--- Regards, Anisse