Begin forwarded message: Date: Wed, 1 Mar 2006 11:18:37 -0000 From: <pete.chapman@xxxxxxxxxxxxxx> To: <linux-kernel@xxxxxxxxxxxxxxx> Subject: 2.6.16-rc5 oops in dm_mirror during pvmove (old bio_clone bug?) While doing an overnight pvmove on a ~200G physical volume, disk activity by a cron job seems to have provoked an oops. I saw this on a 2.6.12 kernel too, and the bug seems to have been around for a while: http://lkml.org/lkml/2005/4/1/116 Mar 1 00:00:00 gallifrey CROND[27778]: (andyh) CMD (/home/andyh/bin/scripts/backup.sh >& /home/andyh/misc/backup_cron.log) Mar 1 00:00:06 gallifrey kernel: Unable to handle kernel paging request at ffffc2001008ec20 RIP: Mar 1 00:00:06 gallifrey kernel: <ffffffff882679c4>{:dm_mirror:core_in_sync+12} Mar 1 00:00:06 gallifrey kernel: PGD 23fc4e067 PUD 23fc4f067 PMD 23fa6c067 PTE 0 Mar 1 00:00:06 gallifrey kernel: Oops: 0000 [1] SMP Mar 1 00:00:06 gallifrey kernel: CPU 0 Mar 1 00:00:06 gallifrey kernel: Modules linked in: dm_mirror binfmt_misc ipt_REJECT xt_mac xt_tcpudp iptable_filter ip_tables x_tables nfsd exportfs lockd nfs_acl sunrpc ipv6 nls_iso8859_1 cifs rfcomm l2cap bluetooth parport_pc lp parport af_packet floppy video thermal processor fan container button battery ac usb_storage libusual e1000 ide_cd loop hw_random ehci_hcd uhci_hcd usbcore ext3 jbd ata_piix libata dm_mod sd_mod scsi_mod Mar 1 00:00:06 gallifrey kernel: Pid: 27782, comm: tar Not tainted 2.6.16-rc5.13mdksmp #1 Mar 1 00:00:06 gallifrey kernel: RIP: 0010:[_end+131774916/2132033536] <ffffffff882679c4>{:dm_mirror:core_in_sync+12} Mar 1 00:00:06 gallifrey kernel: RIP: 0010:[<ffffffff882679c4>] <ffffffff882679c4>{:dm_mirror:core_in_sync+12} Mar 1 00:00:06 gallifrey kernel: RSP: 0018:ffff810231981848 EFLAGS: 00010202 Mar 1 00:00:06 gallifrey kernel: RAX: ffff8102396c55e8 RBX: 0000000000000000 RCX: 000000000000000a Mar 1 00:00:06 gallifrey kernel: RDX: ffffc20010081000 RSI: 000000000006e110 RDI: ffff81023c138e68 Mar 1 00:00:06 gallifrey kernel: RBP: ffff810231981848 R08: ffff8101901211b0 R09: 0000000000000000 Mar 1 00:00:06 gallifrey kernel: R10: ffff81023fd49040 R11: ffff81023f714b30 R12: ffff81023f714b30 Mar 1 00:00:06 gallifrey kernel: R13: ffff810178e13720 R14: 0000000000000000 R15: ffff8101d65e6198 Mar 1 00:00:06 gallifrey kernel: FS: 00002b979cafe6e0(0000) GS:ffffffff80472000(0000) knlGS:0000000000000000 Mar 1 00:00:06 gallifrey kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Mar 1 00:00:06 gallifrey kernel: CR2: ffffc2001008ec20 CR3: 000000022e2a9000 CR4: 00000000000006e0 Mar 1 00:00:06 gallifrey kernel: Process tar (pid: 27782, threadinfo ffff810231980000, task ffff810233fee140) Mar 1 00:00:06 gallifrey kernel: Stack: ffff810231981878 ffffffff882683f4 0000000000000000 ffff8101f961ada0 Mar 1 00:00:06 gallifrey kernel: ffff81023f714b30 000000001b844010 ffff8102319818a8 ffffffff88029dc6 Mar 1 00:00:06 gallifrey kernel: 0000000000000000 ffffc2000003d0d0 Mar 1 00:00:06 gallifrey kernel: Call Trace: <ffffffff882683f4>{:dm_mirror:mirror_map+87} Mar 1 00:00:06 gallifrey kernel: <ffffffff88029dc6>{:dm_mod:__map_bio+68} <ffffffff8802a014>{:dm_mod:__split_bio+356} Mar 1 00:00:06 gallifrey kernel: <ffffffff8802a3ae>{:dm_mod:dm_request+273} <ffffffff801d9837>{generic_make_request+348} Mar 1 00:00:06 gallifrey kernel: <ffffffff88029dd6>{:dm_mod:__map_bio+84} <ffffffff8802a014>{:dm_mod:__split_bio+356} Mar 1 00:00:06 gallifrey kernel: <ffffffff8802a3ae>{:dm_mod:dm_request+273} <ffffffff801d9837>{generic_make_request+348} Mar 1 00:00:06 gallifrey kernel: <ffffffff801d9cfb>{submit_bio+191} <ffffffff8017d0eb>{submit_bh+263} Mar 1 00:00:06 gallifrey kernel: <ffffffff8805b948>{:ext3:__ext3_get_inode_loc+680} <ffffffff8805d24a>{:ext3:ext3_read_inode+56} Mar 1 00:00:06 gallifrey kernel: <ffffffff880622b9>{:ext3:ext3_lookup+120} <ffffffff80191743>{d_lookup+40} Mar 1 00:00:06 gallifrey kernel: <ffffffff8018891d>{do_lookup+197} <ffffffff8018934d>{__link_path_walk+2433} Mar 1 00:00:06 gallifrey kernel: <ffffffff801898a0>{link_path_walk+103} <ffffffff801e5230>{_atomic_dec_and_lock+52} Mar 1 00:00:06 gallifrey kernel: <ffffffff801943dd>{mntput_no_expire+27} <ffffffff80189ede>{do_path_lookup+607} Mar 1 00:00:06 gallifrey kernel: <ffffffff8018a52c>{__user_walk_fd+63} <ffffffff8018360e>{vfs_lstat_fd+33} Mar 1 00:00:06 gallifrey kernel: <ffffffff801e5230>{_atomic_dec_and_lock+52} <ffffffff801943dd>{mntput_no_expire+27} Mar 1 00:00:06 gallifrey kernel: <ffffffff80183c43>{sys_newlstat+34} <ffffffff8017bef1>{fput+20} Mar 1 00:00:06 gallifrey kernel: <ffffffff80179799>{filp_close+98} <ffffffff8017a097>{sys_close+147} Mar 1 00:00:06 gallifrey kernel: <ffffffff8010a7e6>{system_call+126} Mar 1 00:00:06 gallifrey kernel: Mar 1 00:00:06 gallifrey kernel: Code: 0f a3 32 19 c0 85 c0 c9 0f 95 c0 0f b6 c0 c3 48 8b 4f 08 55 Mar 1 00:00:06 gallifrey kernel: RIP <ffffffff882679c4>{:dm_mirror:core_in_sync+12} RSP <ffff810231981848> Mar 1 00:00:06 gallifrey kernel: CR2: ffffc2001008ec20 Mar 1 00:00:06 gallifrey kernel: BUG: tar/27782, lock held at task exit time! Mar 1 00:00:06 gallifrey kernel: [ffff8101d65e65c0] {inode_init_once} Mar 1 00:00:06 gallifrey kernel: .. held by: tar:27782 [ffff810233fee140, 118] Mar 1 00:00:06 gallifrey kernel: ... acquired at: do_lookup+0x81/0x174 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
