btrfs kernel bug

[Frode Tennebø]

I have recently attached a USB disk with btrfs on:

ft@vader:~$ sudo fdisk -l /dev/sdc

Disk /dev/sdc: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x66af66af

   Device Boot Start End Blocks Id System
/dev/sdc1 63 625137344 312568641 83 Linux

The disk was physically connected the whole time, and I was running a backup to it when:

[4597103.123241] usb 1-2: USB disconnect, device number 19
[4597103.124722] scsi: killing requests for dead queue
[4597107.232066] usb 1-2: new high speed USB device number 21 using ehci_hcd
[4597107.367894] scsi21 : usb-storage 1-2:1.0
[4597108.909195] scsi 21:0:0:0: Direct-Access CREATIVE NOMAD MuVo TX 1202 PQ: 0 ANSI: 4
[4597108.909330] scsi: killing requests for dead queue
[4597108.909442] scsi: killing requests for dead queue
[4597108.909541] scsi: killing requests for dead queue
[4597108.909638] scsi: killing requests for dead queue
[4597108.909734] scsi: killing requests for dead queue
[4597108.909830] scsi: killing requests for dead queue
[4597108.909926] scsi: killing requests for dead queue
[4597108.910023] scsi: killing requests for dead queue
[4597108.910958] sd 21:0:0:0: Attached scsi generic sg2 type 0
[4597108.911183] sd 21:0:0:0: [sdc] 509120 2048-byte logical blocks: (1.04 GB/994 MiB)
[4597108.911642] sd 21:0:0:0: [sdc] Write Protect is off
[4597108.911652] sd 21:0:0:0: [sdc] Mode Sense: 38 00 00 00
[4597108.912343] sd 21:0:0:0: [sdc] No Caching mode page present
[4597108.912353] sd 21:0:0:0: [sdc] Assuming drive cache: write through
[4597108.915711] sd 21:0:0:0: [sdc] 509120 2048-byte logical blocks: (1.04 GB/994 MiB)
[4597108.916540] sd 21:0:0:0: [sdc] No Caching mode page present
[4597108.916545] sd 21:0:0:0: [sdc] Assuming drive cache: write through
[4597108.917724] sdc: sdc1
[4597108.919042] sd 21:0:0:0: [sdc] 509120 2048-byte logical blocks: (1.04 GB/994 MiB)
[4597108.920246] sd 21:0:0:0: [sdc] No Caching mode page present
[4597108.920250] sd 21:0:0:0: [sdc] Assuming drive cache: write through
[4597108.920253] sd 21:0:0:0: [sdc] Attached SCSI removable disk
[4597340.005439] sdc: detected capacity change from 1042677760 to 0
[4597342.112740] usb 1-2: USB disconnect, device number 21
[4597342.120506] scsi: killing requests for dead queue
[4597344.284055] usb 1-2: new high speed USB device number 22 using ehci_hcd
[4597344.438798] scsi22 : usb-storage 1-2:1.0
[4597352.117133] scsi 22:0:0:0: Direct-Access Maxtor 3200 0344 PQ: 0 ANSI: 4
[4597352.117259] scsi: killing requests for dead queue
[4597352.117370] scsi: killing requests for dead queue
[4597352.117481] scsi: killing requests for dead queue
[4597352.117578] scsi: killing requests for dead queue
[4597352.117673] scsi: killing requests for dead queue
[4597352.117769] scsi: killing requests for dead queue
[4597352.117865] scsi: killing requests for dead queue
[4597352.117962] scsi: killing requests for dead queue
[4597352.121169] sd 22:0:0:0: Attached scsi generic sg2 type 0
[4597352.122178] sd 22:0:0:0: [sdc] 625142448 512-byte logical blocks: (320 GB/298 GiB)
[4597352.123191] sd 22:0:0:0: [sdc] Write Protect is off
[4597352.123201] sd 22:0:0:0: [sdc] Mode Sense: 17 00 00 00
[4597352.124840] sd 22:0:0:0: [sdc] No Caching mode page present
[4597352.124850] sd 22:0:0:0: [sdc] Assuming drive cache: write through
[4597352.128695] sd 22:0:0:0: [sdc] No Caching mode page present
[4597352.128705] sd 22:0:0:0: [sdc] Assuming drive cache: write through
[4597352.132942] sdc: sdc1
[4597352.136300] sd 22:0:0:0: [sdc] No Caching mode page present
[4597352.136305] sd 22:0:0:0: [sdc] Assuming drive cache: write through
[4597352.136309] sd 22:0:0:0: [sdc] Attached SCSI disk
[4597352.646196] device label disk devid 1 transid 927 /dev/sdc1
[4597386.646330] lost page write due to I/O error on sdb1
[4597386.646386] lost page write due to I/O error on sdb1
[4597386.646441] lost page write due to I/O error on sdb1
[4597386.646448] btrfs: 1 errors while writing supers
[4597386.646496] ------------[ cut here ]------------
[4597386.646591] kernel BUG at /build/buildd/linux-3.0.0/fs/btrfs/disk-io.c:2362!
[4597386.646726] invalid opcode: 0000 [#1] SMP
[4597386.646810] Modules linked in: btrfs zlib_deflate libcrc32c pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv nls_iso8859_1 nls_cp437 vfat fat mmc_block tifm_sd usb_storage uas smsc_ircc2 binfmt_misc joydev ppdev hp_wmi sparse_keymap snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq snd_timer snd_seq_device ipw2200 libipw tifm_7xx1 cfg80211 tifm_core snd yenta_socket psmouse pcmcia_rsrc serio_raw lib80211 pcmcia_core soundcore snd_page_alloc parport_pc tpm_infineon ircomm_tty ircomm irda crc_ccitt dm_crypt cryptd aes_i586 firewire_sbp2 lp parport radeon ttm drm_kms_helper drm firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t tg3 wmi i2c_algo_bit video [last unloaded: vboxdrv]
[4597386.648027]
[4597386.648027] Pid: 13518, comm: btrfs-transacti Not tainted 3.0.0-14-generic #23-Ubuntu Hewlett-Packard HP Compaq nc8230 (PV406ET#ABN)/0934
[4597386.648027] EIP: 0060:[<f92dfc74>] EFLAGS: 00010292 CPU: 0
[4597386.648027] EIP is at write_all_supers+0x2b4/0x2d0 [btrfs]
[4597386.648027] EAX: 0000003c EBX: ec115ba8 ECX: ffffff10 EDX: 00000000
[4597386.648027] ESI: 00000001 EDI: ec00ff18 EBP: ec00ff28 ESP: ec00feec
[4597386.648027] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[4597386.648027] Process btrfs-transacti (pid: 13518, ti=ec00e000 task=eae70cc0 task.ti=ec00e000)
[4597386.648027] Stack:
[4597386.648027] f933a36c 00000001 00000003 00000000 00000000 eb036d6f 00000001 c0dc7800
[4597386.648027] ec115b40 00000001 ec115ba8 ec115ba8 c3915098 eb036d6d eb037898 ec00ff30
[4597386.648027] f92dfca1 ec00ff84 f92e4140 00000000 00000000 00000000 00000001 ebdd4030
[4597386.648027] Call Trace:
[4597386.648027] [<f92dfca1>] write_ctree_super+0x11/0x20 [btrfs]
[4597386.648027] [<f92e4140>] btrfs_commit_transaction+0x540/0x720 [btrfs]
[4597386.648027] [<c1066380>] ? add_wait_queue+0x50/0x50
[4597386.648027] [<f92e4908>] ? start_transaction+0x38/0x50 [btrfs]
[4597386.648027] [<f92dd4bd>] transaction_kthread+0x20d/0x220 [btrfs]
[4597386.648027] [<c102fb9e>] ? complete+0x4e/0x60
[4597386.648027] [<f92dd2b0>] ? btrfs_congested_fn+0x90/0x90 [btrfs]
[4597386.648027] [<c1065b7d>] kthread+0x6d/0x80
[4597386.648027] [<c1065b10>] ? flush_kthread_worker+0x80/0x80
[4597386.648027] [<c153517e>] kernel_thread_helper+0x6/0x10
[4597386.648027] Code: 4d e0 8b 81 10 01 00 00 8b 80 94 1e 00 00 83 c0 54 e8 41 cc 24 c8 e9 c7 fe ff ff 89 74 24 04 c7 04 24 6c a3 33 f9 e8 51 a7 23 c8 <0f> 0b 89 44 24 04 c7 04 24 6c a3 33 f9 e8 3f a7 23 c8 0f 0b 90
[4597386.648027] EIP: [<f92dfc74>] write_all_supers+0x2b4/0x2d0 [btrfs] SS:ESP 0068:ec00feec
[4597386.690987] ---[ end trace 0e312ebeb1f66ef1 ]---
[4605842.241273] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[4605865.784468] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[4605873.229966] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[4605876.114143] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[4606168.341556] CPU0: Core temperature above threshold, cpu clock throttled (total events = 132398)
[4606168.341973] CPU0: Core temperature/speed normal
[4656869.086962] CPU0: Core temperature above threshold, cpu clock throttled (total events = 132405)
[4656869.087380] CPU0: Core temperature/speed normal
[4690763.359795] ------------[ cut here ]------------
[4690763.359900] kernel BUG at /build/buildd/linux-3.0.0/fs/btrfs/inode.c:3024!
[4690763.360033] invalid opcode: 0000 [#2] SMP
[4690763.360117] Modules linked in: btrfs zlib_deflate libcrc32c pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv nls_iso8859_1 nls_cp437 vfat fat mmc_block tifm_sd usb_storage uas smsc_ircc2 binfmt_misc joydev ppdev hp_wmi sparse_keymap snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq snd_timer snd_seq_device ipw2200 libipw tifm_7xx1 cfg80211 tifm_core snd yenta_socket psmouse pcmcia_rsrc serio_raw lib80211 pcmcia_core soundcore snd_page_alloc parport_pc tpm_infineon ircomm_tty ircomm irda crc_ccitt dm_crypt cryptd aes_i586 firewire_sbp2 lp parport radeon ttm drm_kms_helper drm firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t tg3 wmi i2c_algo_bit video [last unloaded: vboxdrv]
[4690763.360646]
[4690763.360646] Pid: 21480, comm: rsync Tainted: G D 3.0.0-14-generic #23-Ubuntu Hewlett-Packard HP Compaq nc8230 (PV406ET#ABN)/0934
[4690763.360646] EIP: 0060:[<f92ee3e7>] EFLAGS: 00210282 CPU: 0
[4690763.360646] EIP is at btrfs_unlink+0xa7/0xb0 [btrfs]
[4690763.360646] EAX: fffffffb EBX: fffffffb ECX: 00de8cb4 EDX: 00de8cb3
[4690763.360646] ESI: ebdd40c0 EDI: f200e89c EBP: f3577ef8 ESP: f3577ed8
[4690763.360646] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[4690763.360646] Process rsync (pid: 21480, ti=f3576000 task=eaed9980 task.ti=f3576000)
[4690763.360646] Stack:
[4690763.360646] ce1ffc9c f2954ca4 00000014 ce1ffc9c cf940800 f2954c80 00000000 f200e89c
[4690763.360646] f3577f18 c1133ba9 00000000 f3577f18 c1132e45 f200e89c f2954c80 00000000
[4690763.360646] f3577f28 c1133c53 f2954c80 ce1ffc9c f3577fa4 c1136277 f3577f94 d75dcd80
[4690763.360646] Call Trace:
[4690763.360646] [<c1133ba9>] vfs_unlink.part.22+0x69/0xe0
[4690763.360646] [<c1132e45>] ? may_delete+0x65/0x90
[4690763.360646] [<c1133c53>] vfs_unlink+0x33/0x50
[4690763.360646] [<c1136277>] do_unlinkat+0x137/0x150
[4690763.360646] [<c1049c10>] ? wait_task_continued+0x140/0x140
[4690763.360646] [<c1136ce5>] sys_unlink+0x15/0x20
[4690763.360646] [<c152def4>] syscall_call+0x7/0xb
[4690763.360646] [<c1520000>] ? ext3_load_journal+0x1ea/0x246
[4690763.360646] Code: 8c ff ff 8b 45 f0 89 fa e8 87 26 ff ff 83 c4 14 89 d8 5b 5e 5f 5d c3 90 8d 74 26 00 89 c2 89 f0 e8 2f cc ff ff 85 c0 74 cd 0f 0b <0f> 0b 89 c3 eb dc 8d 76 00 55 89 e5 57 56 53 83 ec 5c 3e 8d 74
[4690763.360646] EIP: [<f92ee3e7>] btrfs_unlink+0xa7/0xb0 [btrfs] SS:ESP 0068:f3577ed8
[4690763.559868] ---[ end trace 0e312ebeb1f66ef2 ]---
[4690776.159267] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
[4690793.322963] ------------[ cut here ]------------
[4690793.324024] kernel BUG at /build/buildd/linux-3.0.0/fs/btrfs/inode.c:1662!
[4690793.324024] invalid opcode: 0000 [#3] SMP
[4690793.324024] Modules linked in: btrfs zlib_deflate libcrc32c pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv nls_iso8859_1 nls_cp437 vfat fat mmc_block tifm_sd usb_storage uas smsc_ircc2 binfmt_misc joydev ppdev hp_wmi sparse_keymap snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event pcmcia snd_seq snd_timer snd_seq_device ipw2200 libipw tifm_7xx1 cfg80211 tifm_core snd yenta_socket psmouse pcmcia_rsrc serio_raw lib80211 pcmcia_core soundcore snd_page_alloc parport_pc tpm_infineon ircomm_tty ircomm irda crc_ccitt dm_crypt cryptd aes_i586 firewire_sbp2 lp parport radeon ttm drm_kms_helper drm firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t tg3 wmi i2c_algo_bit video [last unloaded: vboxdrv]
[4690793.324024]
[4690793.324024] Pid: 15455, comm: btrfs-endio-wri Tainted: G D 3.0.0-14-generic #23-Ubuntu Hewlett-Packard HP Compaq nc8230 (PV406ET#ABN)/0934
[4690793.324024] EIP: 0060:[<f92e7c0e>] EFLAGS: 00010282 CPU: 0
[4690793.324024] EIP is at insert_reserved_file_extent.constprop.45+0x28e/0x2a0 [btrfs]
[4690793.324024] EAX: fffffffb EBX: 00000000 ECX: 00de9239 EDX: 00de9238
[4690793.324024] ESI: 00040000 EDI: 00000000 EBP: eaf11e68 ESP: eaf11e08
[4690793.324024] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[4690793.324024] Process btrfs-endio-wri (pid: 15455, ti=eaf10000 task=f2f8e600 task.ti=eaf10000)
[4690793.324024] Stack:
[4690793.324024] 00180000 00000000 001c0000 00000000 eaf11e50 00000000 00000000 00f11e48
[4690793.324024] cf940800 ebdd4060 ce1ffc9c e9ac30e0 cf940800 ce1ffc9c 00000000 00000000
[4690793.324024] eaf11e5c f92e4908 00000001 001bffff 00000000 ce1ffc9c 00040000 ce1ffb98
[4690793.324024] Call Trace:
[4690793.324024] [<f92e4908>] ? start_transaction+0x38/0x50 [btrfs]
[4690793.324024] [<f92ebc91>] btrfs_finish_ordered_io+0x361/0x3a0 [btrfs]
[4690793.324024] [<c12827d9>] ? __prop_inc_percpu_max+0x59/0xb0
[4690793.324024] [<f92ebd0d>] btrfs_writepage_end_io_hook+0x3d/0xb0 [btrfs]
[4690793.324024] [<f9305993>] end_bio_extent_writepage+0x193/0x1d0 [btrfs]
[4690793.324024] [<f92ebcd0>] ? btrfs_finish_ordered_io+0x3a0/0x3a0 [btrfs]
[4690793.324024] [<c1154a8a>] bio_endio+0x1a/0x40
[4690793.324024] [<f92ddca9>] end_workqueue_fn+0x49/0x80 [btrfs]
[4690793.324024] [<f9312ce1>] worker_loop+0x71/0x250 [btrfs]
[4690793.324024] [<c102e467>] ? __wake_up_common+0x47/0x70
[4690793.324024] [<f9312c70>] ? check_pending_worker_creates.isra.1+0xd0/0xd0 [btrfs]
[4690793.324024] [<c1065b7d>] kthread+0x6d/0x80
[4690793.324024] [<c1065b10>] ? flush_kthread_worker+0x80/0x80
[4690793.324024] [<c153517e>] kernel_thread_helper+0x6/0x10
[4690793.324024] Code: 5b 5e 5f 5d c3 3d 00 01 00 00 0f 87 27 fe ff ff 8b 41 64 31 d2 e9 1d fe ff ff 8d 76 00 3d 00 01 00 00 77 8e 8b 41 64 31 d2 eb 87 <0f> 0b 0f 0b 0f 0b 0f 0b 8d 76 00 8d bc 27 00 00 00 00 55 89 e5
[4690793.324024] EIP: [<f92e7c0e>] insert_reserved_file_extent.constprop.45+0x28e/0x2a0 [btrfs] SS:ESP 0068:eaf11e08
[4690793.678139] ---[ end trace 0e312ebeb1f66ef3 ]---

Other details:

ft@vader:~$ lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10

ft@vader:~$ apt-cache policy btrfs-tools
btrfs-tools:
  Installed: 0.19+20100601-3ubuntu3
  Candidate: 0.19+20100601-3ubuntu3
  Version table:
 *** 0.19+20100601-3ubuntu3 0
        500 http://ftp.uninett.no/ubuntu/ oneiric/main i386 Packages
        100 /var/lib/dpkg/status

ft@vader:~$ uname -a
Linux vader 3.0.0-14-generic #23-Ubuntu SMP Mon Nov 21 20:34:47 UTC 2011 i686 i686 i386 GNU/Linux
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ft 25851 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'ICH6'/'Intel ICH6 with AD1981B at irq 21'
   Mixer name : 'Analog Devices AD1981B'
   Components : 'AC97a:41445374'
   Controls : 25
   Simple ctrls : 18
DistroRelease: Ubuntu 11.10
HibernationDevice: RESUME=UUID=6de16e5a-428f-4a0e-8b39-ac41a3e7b42c
Lsusb:
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 031: ID 0d49:3200 Maxtor
MachineType: Hewlett-Packard HP Compaq nc8230 (PV406ET#ABN)
Package: linux (not installed)
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: root=UUID=beecb679-0b9b-4c6d-9c5e-6e736d2269e5 ro quiet splash crashkernel=384M-2G:64M,2G-:128M
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
RelatedPackageVersions:
 linux-restricted-modules-3.0.0-14-generic N/A
 linux-backports-modules-3.0.0-14-generic N/A
 linux-firmware 1.60
Tags: oneiric
Uname: Linux 3.0.0-14-generic i686
UpgradeStatus: Upgraded to oneiric on 2011-12-17 (91 days ago)
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner vboxusers video
WpaSupplicantLog:

dmi.bios.date: 07/22/2005
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68DTV Ver. F.0E
dmi.board.name: 0934
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 43.1A
dmi.chassis.asset.tag: CNU53605X0
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68DTVVer.F.0E:bd07/22/2005:svnHewlett-Packard:pnHPCompaqnc8230(PV406ET#ABN):pvrF.0E:rvnHewlett-Packard:rn0934:rvrKBCVersion43.1A:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP Compaq nc8230 (PV406ET#ABN)
dmi.product.version: F.0E
dmi.sys.vendor: Hewlett-Packard

[Tomasz (tomasz-redhat-bugs)]

Description of problem:
I have 4 1TB disk in raid10. Everytime I run following fio load, after few hours I got BUG() like below. Btrfs mounted with compress=lzo,space_cache

#v+
[write-test]
rw=randwrite
ioengine=libaio
blocksize=4k
iodepth=32
size=1512G
#v-

[64354.305737] ------------[ cut here ]------------
[64354.306009] kernel BUG at fs/btrfs/inode.c:1668!
[64354.306009] invalid opcode: 0000 [#1] SMP
[64354.306009] CPU 1
[64354.306009] Modules linked in: lockd bnep bluetooth rfkill snd_intel8x0 snd_ac97_codec ac97_bus snd_seq snd_seq_device ppdev snd_pcm snd_timer snd soundcore iTCO_wdt tg3 parport_pc iTCO_vendor_support parport snd_page_alloc dcdbas serio_raw i2c_i801 microcode sunrpc uinput aoe btrfs zlib_deflate libcrc32c sata_promise i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
[64354.330470]
[64354.330470] Pid: 5149, comm: btrfs-endio-wri Tainted: G W 3.3.0-0.rc2.git3.2.fc17.x86_64 #1 Dell Inc. OptiPlex GX620 /0FH884
[64354.330470] RIP: 0010:[<ffffffffa0125751>] [<ffffffffa0125751>] insert_reserved_file_extent.constprop.50+0x251/0x260 [btrfs]
[64354.330470] RSP: 0018:ffff8800757ffbd0 EFLAGS: 00010286
[64354.330470] RDX: 0000000000000000 RSI: ffffea00033c3700 RDI: 0000000000000246
[64354.330470] RBP: ffff8800757ffc60 R08: ffff8800cf0dc760 R09: 0000000100110002
[64354.330470] R10: ffff8800cf0dc7f0 R11: 0000000000000000 R12: ffff8800a453a290
[64354.330470] R13: ffff8800cf0dc1d8 R14: ffff8800a3a69868 R15: 0000002e8f0b2000
[64354.330470] FS: 0000000000000000(0000) GS:ffff8800db000000(0000) knlGS:0000000000000000
[64354.330470] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[64354.330470] CR2: 0000003238285240 CR3: 0000000023ba8000 CR4: 00000000000006e0
[64354.330470] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[64354.330470] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[64354.330470] Process btrfs-endio-wri (pid: 5149, threadinfo ffff8800757fe000, task ffff880097978000)
[64354.330470] Stack:
[64354.330470] 00ff8800757ffc00 0000000000001000 0000001d7ab1f000 ffff8800a453a290
[64354.330470] 0000000000001000 ffff8800cf207a90 ffff8800757ffc50 ffffffffa0123455
[64354.330470] ffff8800757ffc30 0000000000000000 00000000000000cc ffff8800a3a69868
[64354.330470] Call Trace:
[64354.330470] [<ffffffffa0123455>] ? start_transaction+0x85/0x3b0 [btrfs]
[64354.330470] [<ffffffffa0128ef2>] btrfs_finish_orde...

[sam tygier (samtygier)]

i think this is a kernel bug, rather in the btrfs tools.
also trace looks similar to this
https://bugzilla.redhat.com/show_bug.cgi?id=788064

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 957131

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Frode Tennebø (frode-tennebo)]

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[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.3 kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[1] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.3-precise/

[Fedora (fedora-redhat-bugs)]

This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.

(As we did not run this process for some time, it could affect also pre-Fedora 19 development
cycle bugs. We are very sorry. It will help us with cleanup during Fedora 19 End Of Life. Thank you.)

More information and reason for this action is here:
https://fedoraproject.org/wiki/BugZappers/HouseKeeping/Fedora19

[Dave (dave-redhat-bugs)]

over a year with no progress..

Tomasz, is this still reproducible for you ?

[Tomasz (tomasz-redhat-bugs)]

Nope, I no longer have access to system in question. Let's clean this up.