I believe I have the same bug. After the dumping this to dmesg, the system will freeze any process trying to access the drive. The system has been running stable for 4+months with 10.10 but started crashing a couple of minutes after booting up with 11.04.
Using the old 10.10 kernel with the upgraded system seems stable. [ 872.029550] device fsid fd46e65295fe4ca6-d8bc5e8819bc8395 devid 1 transid 36943 /dev/mapper/vg-backup [ 887.484492] type=1400 audit(1307828349.791:8): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=848 comm="apparmor_parser" [ 887.485684] type=1400 audit(1307828349.791:9): apparmor="STATUS" operation="profile_load" name="/usr/sbin/cupsd" pid=848 comm="apparmor_parser" [ 887.621938] type=1400 audit(1307828349.931:10): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=868 comm="apparmor_parser" [ 887.622963] type=1400 audit(1307828349.931:11): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=868 comm="apparmor_parser" [ 887.623612] type=1400 audit(1307828349.931:12): apparmor="STATUS" operation="profile_replace" name="/usr/lib/connman/scripts/dhclient-script" pid=868 comm="apparmor_parser" [ 887.708578] type=1400 audit(1307828350.011:13): apparmor="STATUS" operation="profile_load" name="/usr/share/gdm/guest-session/Xsession" pid=867 comm="apparmor_parser" [ 887.716199] type=1400 audit(1307828350.021:14): apparmor="STATUS" operation="profile_replace" name="/usr/lib/cups/backend/cups-pdf" pid=871 comm="apparmor_parser" [ 887.717397] type=1400 audit(1307828350.021:15): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/cupsd" pid=871 comm="apparmor_parser" [ 887.746043] type=1400 audit(1307828350.051:16): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld-akonadi" pid=872 comm="apparmor_parser" [ 887.746702] type=1400 audit(1307828350.051:17): apparmor="STATUS" operation="profile_load" name="/usr/sbin/mysqld-akonadi///usr/sbin/mysqld" pid=872 comm="apparmor_parser" [ 903.742055] EXT4-fs (dm-0): re-mounted. Opts: commit=0 [ 913.727314] EXT4-fs (dm-0): re-mounted. Opts: commit=0 [ 914.293354] vortex: IRQ fifo error [ 914.502312] vortex: IRQ fifo error [ 920.950195] ------------[ cut here ]------------ [ 920.950203] kernel BUG at /build/buildd/linux-2.6.38/fs/btrfs/extent-tree.c:1401! [ 920.950208] invalid opcode: 0000 [#1] SMP [ 920.950213] last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:01:01.0/sound/card0/uevent [ 920.950217] CPU 1 [ 920.950219] Modules linked in: binfmt_misc vesafb nvidia(P) snd_au8830 gameport snd_ac97_codec snd_usb_audio snd_pcm snd_hwdep snd_usbmidi_lib snd_page_alloc ac97_bus snd_mpu401_uart snd_seq_midi ppdev snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device asus_atk0110 snd parport_pc soundcore lp parport usbhid hid skge btrfs zlib_deflate libcrc32c [ 920.950255] [ 920.950259] Pid: 789, comm: btrfs-transacti Tainted: P 2.6.38-8-generic #42-Ubuntu ASUSTek Computer INC. P5GZ-MX/P5GZ-MX [ 920.950268] RIP: 0010:[<ffffffffa00247e1>] [<ffffffffa00247e1>] lookup_inline_extent_backref+0x461/0x470 [btrfs] [ 920.950288] RSP: 0018:ffff880060173a90 EFLAGS: 00010202 [ 920.950292] RAX: 0000000000000001 RBX: ffff8800c18c9000 RCX: ffff880060173fd8 [ 920.950295] RDX: 0000000000000008 RSI: 0000000000000001 RDI: ffff8800c3c97cc0 [ 920.950298] RBP: ffff880060173b20 R08: 0000000000000002 R09: 0000000000000000 [ 920.950301] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000005 [ 920.950304] R13: 00000000000000b0 R14: 0000000000000000 R15: ffff8800c18ca000 [ 920.950309] FS: 0000000000000000(0000) GS:ffff8800d7c80000(0000) knlGS:0000000000000000 [ 920.950312] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 920.950315] CR2: 00000000004603e0 CR3: 00000000cc71a000 CR4: 00000000000006e0 [ 920.950319] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 920.950323] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 920.950327] Process btrfs-transacti (pid: 789, threadinfo ffff880060172000, task ffff8800c52416e0) [ 920.950330] Stack: [ 920.950332] 0000000000001000 ffff880060173bd8 000000ec02023000 ffff880036802000 [ 920.950338] 0000000000000000 ffffffff36c81b00 ffff880060173b10 ffff8800cbefd900 [ 920.950345] 000000ec02023000 00000000001000a8 ffff88005e924000 ffff8800c18c9000 [ 920.950351] Call Trace: [ 920.950366] [<ffffffffa0027160>] __btrfs_free_extent+0xd0/0x710 [btrfs] [ 920.950378] [<ffffffffa00278a4>] run_delayed_tree_ref+0x104/0x1a0 [btrfs] [ 920.950386] [<ffffffff81151cce>] ? spin_unlock+0xe/0x20 [ 920.950398] [<ffffffffa002afae>] run_one_delayed_ref+0xae/0xf0 [btrfs] [ 920.950409] [<ffffffffa002b0c4>] run_clustered_refs+0xd4/0x240 [btrfs] [ 920.950416] [<ffffffff8100a6e0>] ? __switch_to+0xc0/0x2f0 [ 920.950428] [<ffffffffa002b2fa>] btrfs_run_delayed_refs+0xca/0x220 [btrfs] [ 920.950435] [<ffffffff815c143e>] ? mutex_lock+0x1e/0x50 [ 920.950451] [<ffffffffa0058456>] ? btrfs_run_ordered_operations+0x1d6/0x200 [btrfs] [ 920.950466] [<ffffffffa003a18d>] btrfs_commit_transaction+0x7d/0x760 [btrfs] [ 920.950471] [<ffffffff815c143e>] ? mutex_lock+0x1e/0x50 [ 920.950477] [<ffffffff81087f30>] ? autoremove_wake_function+0x0/0x40 [ 920.950490] [<ffffffffa0034603>] transaction_kthread+0x273/0x290 [btrfs] [ 920.950503] [<ffffffffa0034390>] ? transaction_kthread+0x0/0x290 [btrfs] [ 920.950507] [<ffffffff810877e6>] kthread+0x96/0xa0 [ 920.950512] [<ffffffff8100ce24>] kernel_thread_helper+0x4/0x10 [ 920.950516] [<ffffffff81087750>] ? kthread+0x0/0xa0 [ 920.950521] [<ffffffff8100ce20>] ? kernel_thread_helper+0x0/0x10 [ 920.950523] Code: 4d fd ff ff 80 7d b8 bf 0f 86 fc fe ff ff e9 3e fd ff ff be 9f 05 00 00 48 c7 c7 98 48 08 a0 e8 56 15 04 e1 e9 1d fd ff ff 0f 0b <0f> 0b 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 [ 920.950579] RIP [<ffffffffa00247e1>] lookup_inline_extent_backref+0x461/0x470 [btrfs] [ 920.950591] RSP <ffff880060173a90> [ 920.950595] ---[ end trace 1feb39a813b2dd59 ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/776141 Title: kernel bug in 11.04 server x64 btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/776141/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
