* BTRFS Warning
@ 2011-12-19 8:28 Jens Rehpöhler
2011-12-19 18:51 ` Gregory Farnum
0 siblings, 1 reply; 5+ messages in thread
From: Jens Rehpöhler @ 2011-12-19 8:28 UTC (permalink / raw)
To: ceph-devel; +Cc: oliver.francke
Good morning !!
i got the following warning as soon as i use btrfs as underlaying
filesystem (for stability reasons i use ext4). I converted one OSD back
to btrfs to give it another try.
kernel: 3.2rc6
ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1
dist: debian squeeze
[ 8930.692232] ------------[ cut here ]------------
[ 8930.692282] WARNING: at fs/btrfs/inode.c:1969
btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
[ 8930.692327] Hardware name: X8DT3
[ 8930.692349] Modules linked in: loop aes_x86_64 aes_generic cbc
kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap
macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph
libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
scsi_mod igb dca [last unloaded: scsi_wait_scan]
[ 8930.698021] Pid: 336, comm: kworker/2:1 Tainted: G C
3.2.0-rc6 #2
[ 8930.698050] Call Trace:
[ 8930.698075] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c
[ 8930.698116] [<ffffffffa011ee22>] ?
btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
[ 8930.698171] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs]
[ 8930.698208] [<ffffffffa0118fcd>] ?
btrfs_commit_transaction+0x3e2/0x71b [btrfs]
[ 8930.698254] [<ffffffff8103b794>] ? pick_next_task_fair+0xfc/0x10e
[ 8930.698285] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20
[ 8930.698320] [<ffffffffa011952f>] ? btrfs_end_transaction+0x12/0x12
[btrfs]
[ 8930.698361] [<ffffffffa0119541>] ? do_async_commit+0x12/0x1b [btrfs]
[ 8930.698392] [<ffffffff8105cd0e>] ? process_one_work+0x1cc/0x2ea
[ 8930.698420] [<ffffffff8105cf59>] ? worker_thread+0x12d/0x247
[ 8930.698448] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
[ 8930.698476] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
[ 8930.698504] [<ffffffff8106072d>] ? kthread+0x7a/0x82
[ 8930.698531] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10
[ 8930.698560] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147
[ 8930.698588] [<ffffffff813316b0>] ? gs_change+0x13/0x13
[ 8930.698614] ---[ end trace 3b774941bf3fc465 ]---
Anything to worry about ?
thanks
Jens
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS Warning
2011-12-19 8:28 BTRFS Warning Jens Rehpöhler
@ 2011-12-19 18:51 ` Gregory Farnum
2011-12-21 13:22 ` Jens Rehpöhler
0 siblings, 1 reply; 5+ messages in thread
From: Gregory Farnum @ 2011-12-19 18:51 UTC (permalink / raw)
To: Jens Rehpöhler; +Cc: ceph-devel, oliver.francke
On Mon, Dec 19, 2011 at 12:28 AM, Jens Rehpöhler
<jens.rehpoehler@filoo.de> wrote:
> Good morning !!
>
> i got the following warning as soon as i use btrfs as underlaying
> filesystem (for stability reasons i use ext4). I converted one OSD back
> to btrfs to give it another try.
>
> kernel: 3.2rc6
> ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1
> dist: debian squeeze
>
> [ 8930.692232] ------------[ cut here ]------------
> [ 8930.692282] WARNING: at fs/btrfs/inode.c:1969
> btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
> [ 8930.692327] Hardware name: X8DT3
> [ 8930.692349] Modules linked in: loop aes_x86_64 aes_generic cbc
> kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap
> macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph
> libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
> scsi_mod igb dca [last unloaded: scsi_wait_scan]
> [ 8930.698021] Pid: 336, comm: kworker/2:1 Tainted: G C
> 3.2.0-rc6 #2
> [ 8930.698050] Call Trace:
> [ 8930.698075] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c
> [ 8930.698116] [<ffffffffa011ee22>] ?
> btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
> [ 8930.698171] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs]
> [ 8930.698208] [<ffffffffa0118fcd>] ?
> btrfs_commit_transaction+0x3e2/0x71b [btrfs]
> [ 8930.698254] [<ffffffff8103b794>] ? pick_next_task_fair+0xfc/0x10e
> [ 8930.698285] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20
> [ 8930.698320] [<ffffffffa011952f>] ? btrfs_end_transaction+0x12/0x12
> [btrfs]
> [ 8930.698361] [<ffffffffa0119541>] ? do_async_commit+0x12/0x1b [btrfs]
> [ 8930.698392] [<ffffffff8105cd0e>] ? process_one_work+0x1cc/0x2ea
> [ 8930.698420] [<ffffffff8105cf59>] ? worker_thread+0x12d/0x247
> [ 8930.698448] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
> [ 8930.698476] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
> [ 8930.698504] [<ffffffff8106072d>] ? kthread+0x7a/0x82
> [ 8930.698531] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10
> [ 8930.698560] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147
> [ 8930.698588] [<ffffffff813316b0>] ? gs_change+0x13/0x13
> [ 8930.698614] ---[ end trace 3b774941bf3fc465 ]---
>
> Anything to worry about ?
This doesn't look familiar to me — if you can reproduce it (or maybe
just provide more detail) the btrfs folks will probably be interested.
-Greg
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS Warning
2011-12-19 18:51 ` Gregory Farnum
@ 2011-12-21 13:22 ` Jens Rehpöhler
2011-12-21 15:35 ` Christian Brunner
0 siblings, 1 reply; 5+ messages in thread
From: Jens Rehpöhler @ 2011-12-21 13:22 UTC (permalink / raw)
To: Gregory Farnum; +Cc: ceph-devel
Am 19.12.2011 19:51, schrieb Gregory Farnum:
> On Mon, Dec 19, 2011 at 12:28 AM, Jens Rehpöhler
> <jens.rehpoehler@filoo.de> wrote:
>> Good morning !!
>>
>> i got the following warning as soon as i use btrfs as underlaying
>> filesystem (for stability reasons i use ext4). I converted one OSD back
>> to btrfs to give it another try.
>>
>> kernel: 3.2rc6
>> ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1
>> dist: debian squeeze
>>
>> [ 8930.692232] ------------[ cut here ]------------
>> [ 8930.692282] WARNING: at fs/btrfs/inode.c:1969
>> btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
>> [ 8930.692327] Hardware name: X8DT3
>> [ 8930.692349] Modules linked in: loop aes_x86_64 aes_generic cbc
>> kvm_intel xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap
>> macvlan tun brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph
>> libceph bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
>> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
>> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
>> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
>> scsi_mod igb dca [last unloaded: scsi_wait_scan]
>> [ 8930.698021] Pid: 336, comm: kworker/2:1 Tainted: G C
>> 3.2.0-rc6 #2
>> [ 8930.698050] Call Trace:
>> [ 8930.698075] [<ffffffff81047257>] ? warn_slowpath_common+0x78/0x8c
>> [ 8930.698116] [<ffffffffa011ee22>] ?
>> btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
>> [ 8930.698171] [<ffffffffa01182f3>] ? commit_fs_roots+0xa2/0x159 [btrfs]
>> [ 8930.698208] [<ffffffffa0118fcd>] ?
>> btrfs_commit_transaction+0x3e2/0x71b [btrfs]
>> [ 8930.698254] [<ffffffff8103b794>] ? pick_next_task_fair+0xfc/0x10e
>> [ 8930.698285] [<ffffffff81060b69>] ? wake_up_bit+0x20/0x20
>> [ 8930.698320] [<ffffffffa011952f>] ? btrfs_end_transaction+0x12/0x12
>> [btrfs]
>> [ 8930.698361] [<ffffffffa0119541>] ? do_async_commit+0x12/0x1b [btrfs]
>> [ 8930.698392] [<ffffffff8105cd0e>] ? process_one_work+0x1cc/0x2ea
>> [ 8930.698420] [<ffffffff8105cf59>] ? worker_thread+0x12d/0x247
>> [ 8930.698448] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
>> [ 8930.698476] [<ffffffff8105ce2c>] ? process_one_work+0x2ea/0x2ea
>> [ 8930.698504] [<ffffffff8106072d>] ? kthread+0x7a/0x82
>> [ 8930.698531] [<ffffffff813316b4>] ? kernel_thread_helper+0x4/0x10
>> [ 8930.698560] [<ffffffff810606b3>] ? kthread_worker_fn+0x147/0x147
>> [ 8930.698588] [<ffffffff813316b0>] ? gs_change+0x13/0x13
>> [ 8930.698614] ---[ end trace 3b774941bf3fc465 ]---
>>
>> Anything to worry about ?
> This doesn't look familiar to me — if you can reproduce it (or maybe
> just provide more detail) the btrfs folks will probably be interested.
> -Greg
Hi Greg,
reproduction is possible, if i destroy one osd und start a fresh resync
(actual 550 GB of data).
After a short while i get:
Dec 20 19:45:22 fcmsnode4 kernel: [170010.477676] ------------[ cut here
]------------
Dec 20 19:45:22 fcmsnode4 kernel: [170010.477727] WARNING: at
fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
Dec 20 19:45:22 fcmsnode4 kernel: [170010.477772] Hardware name: X8DT3
Dec 20 19:45:22 fcmsnode4 kernel: [170010.477795] Modules linked in:
zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
scsi_mod igb dca [last unloaded: scsi_wait_scan]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478130] Pid: 6790, comm:
btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478173] Call Trace:
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478199] [<ffffffff81047257>]
? warn_slowpath_common+0x78/0x8c
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478237] [<ffffffffa011ee22>]
? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478289] [<ffffffffa01182f3>]
? commit_fs_roots+0xa2/0x159 [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478332] [<ffffffff810ece7c>]
? kmem_cache_free+0x12/0x9e
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478377] [<ffffffffa0118fcd>]
? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478423] [<ffffffff81053026>]
? del_timer_sync+0x34/0x3e
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478453] [<ffffffff81328237>]
? schedule_timeout+0xa8/0xd7
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478482] [<ffffffff81060b69>]
? wake_up_bit+0x20/0x20
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478517] [<ffffffffa0113c8d>]
? transaction_kthread+0x173/0x22d [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478560] [<ffffffffa0113b1a>]
? find_and_setup_root+0xdc/0xdc [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478600] [<ffffffffa0113b1a>]
? find_and_setup_root+0xdc/0xdc [btrfs]
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478630] [<ffffffff8106072d>]
? kthread+0x7a/0x82
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478658] [<ffffffff813316b4>]
? kernel_thread_helper+0x4/0x10
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478687] [<ffffffff810606b3>]
? kthread_worker_fn+0x147/0x147
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478716] [<ffffffff813316b0>]
? gs_change+0x13/0x13
Dec 20 19:45:22 fcmsnode4 kernel: [170010.478742] ---[ end trace
3b774941bf3fc467 ]---
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535021] ------------[ cut here
]------------
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535072] WARNING: at
fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535117] Hardware name: X8DT3
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535139] Modules linked in:
zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
scsi_mod igb dca [last unloaded: scsi_wait_scan]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535471] Pid: 6790, comm:
btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535514] Call Trace:
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535539] [<ffffffff81047257>]
? warn_slowpath_common+0x78/0x8c
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535577] [<ffffffffa011ee22>]
? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535629] [<ffffffffa01182f3>]
? commit_fs_roots+0xa2/0x159 [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535661] [<ffffffff810ece7c>]
? kmem_cache_free+0x12/0x9e
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535697] [<ffffffffa0118fcd>]
? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535743] [<ffffffff81053026>]
? del_timer_sync+0x34/0x3e
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535773] [<ffffffff81328237>]
? schedule_timeout+0xa8/0xd7
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535803] [<ffffffff81060b69>]
? wake_up_bit+0x20/0x20
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535838] [<ffffffffa0113c8d>]
? transaction_kthread+0x173/0x22d [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535876] [<ffffffffa0113b1a>]
? find_and_setup_root+0xdc/0xdc [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535914] [<ffffffffa0113b1a>]
? find_and_setup_root+0xdc/0xdc [btrfs]
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535944] [<ffffffff8106072d>]
? kthread+0x7a/0x82
Dec 20 19:48:57 fcmsnode4 kernel: [170225.535971] [<ffffffff813316b4>]
? kernel_thread_helper+0x4/0x10
Dec 20 19:48:57 fcmsnode4 kernel: [170225.536000] [<ffffffff810606b3>]
? kthread_worker_fn+0x147/0x147
Dec 20 19:48:57 fcmsnode4 kernel: [170225.536028] [<ffffffff813316b0>]
? gs_change+0x13/0x13
Dec 20 19:48:57 fcmsnode4 kernel: [170225.536054] ---[ end trace
3b774941bf3fc468 ]---
Seems to me, that this happens if the btrfs is under heavy load.
Thanks and merry christmas !
Jens
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS Warning
2011-12-21 13:22 ` Jens Rehpöhler
@ 2011-12-21 15:35 ` Christian Brunner
2011-12-21 16:25 ` Gregory Farnum
0 siblings, 1 reply; 5+ messages in thread
From: Christian Brunner @ 2011-12-21 15:35 UTC (permalink / raw)
To: Jens Rehpöhler; +Cc: Gregory Farnum, ceph-devel
2011/12/21 Jens Rehpöhler <jens.rehpoehler@filoo.de>:
> Am 19.12.2011 19:51, schrieb Gregory Farnum:
>> On Mon, Dec 19, 2011 at 12:28 AM, Jens Rehpöhler
>> <jens.rehpoehler@filoo.de> wrote:
>>> Good morning !!
>>>
>>> i got the following warning as soon as i use btrfs as underlaying
>>> filesystem (for stability reasons i use ext4). I converted one OSD back
>>> to btrfs to give it another try.
>>>
>>> kernel: 3.2rc6
>>> ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1
>>> dist: debian squeeze
>>>
>>> [...]
>>>
>>> Anything to worry about ?
>> This doesn't look familiar to me — if you can reproduce it (or maybe
>> just provide more detail) the btrfs folks will probably be interested.
>> -Greg
>
> Hi Greg,
>
> reproduction is possible, if i destroy one osd und start a fresh resync
> (actual 550 GB of data).
> After a short while i get:
>
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477676] ------------[ cut here
> ]------------
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477727] WARNING: at
> fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477772] Hardware name: X8DT3
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477795] Modules linked in:
> zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
> xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
> brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
> bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
> scsi_mod igb dca [last unloaded: scsi_wait_scan]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478130] Pid: 6790, comm:
> btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478173] Call Trace:
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478199] [<ffffffff81047257>]
> ? warn_slowpath_common+0x78/0x8c
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478237] [<ffffffffa011ee22>]
> ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478289] [<ffffffffa01182f3>]
> ? commit_fs_roots+0xa2/0x159 [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478332] [<ffffffff810ece7c>]
> ? kmem_cache_free+0x12/0x9e
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478377] [<ffffffffa0118fcd>]
> ? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478423] [<ffffffff81053026>]
> ? del_timer_sync+0x34/0x3e
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478453] [<ffffffff81328237>]
> ? schedule_timeout+0xa8/0xd7
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478482] [<ffffffff81060b69>]
> ? wake_up_bit+0x20/0x20
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478517] [<ffffffffa0113c8d>]
> ? transaction_kthread+0x173/0x22d [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478560] [<ffffffffa0113b1a>]
> ? find_and_setup_root+0xdc/0xdc [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478600] [<ffffffffa0113b1a>]
> ? find_and_setup_root+0xdc/0xdc [btrfs]
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478630] [<ffffffff8106072d>]
> ? kthread+0x7a/0x82
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478658] [<ffffffff813316b4>]
> ? kernel_thread_helper+0x4/0x10
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478687] [<ffffffff810606b3>]
> ? kthread_worker_fn+0x147/0x147
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478716] [<ffffffff813316b0>]
> ? gs_change+0x13/0x13
> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478742] ---[ end trace
> 3b774941bf3fc467 ]---
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535021] ------------[ cut here
> ]------------
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535072] WARNING: at
> fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535117] Hardware name: X8DT3
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535139] Modules linked in:
> zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
> xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
> brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
> bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
> scsi_mod igb dca [last unloaded: scsi_wait_scan]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535471] Pid: 6790, comm:
> btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535514] Call Trace:
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535539] [<ffffffff81047257>]
> ? warn_slowpath_common+0x78/0x8c
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535577] [<ffffffffa011ee22>]
> ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535629] [<ffffffffa01182f3>]
> ? commit_fs_roots+0xa2/0x159 [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535661] [<ffffffff810ece7c>]
> ? kmem_cache_free+0x12/0x9e
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535697] [<ffffffffa0118fcd>]
> ? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535743] [<ffffffff81053026>]
> ? del_timer_sync+0x34/0x3e
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535773] [<ffffffff81328237>]
> ? schedule_timeout+0xa8/0xd7
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535803] [<ffffffff81060b69>]
> ? wake_up_bit+0x20/0x20
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535838] [<ffffffffa0113c8d>]
> ? transaction_kthread+0x173/0x22d [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535876] [<ffffffffa0113b1a>]
> ? find_and_setup_root+0xdc/0xdc [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535914] [<ffffffffa0113b1a>]
> ? find_and_setup_root+0xdc/0xdc [btrfs]
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535944] [<ffffffff8106072d>]
> ? kthread+0x7a/0x82
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535971] [<ffffffff813316b4>]
> ? kernel_thread_helper+0x4/0x10
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536000] [<ffffffff810606b3>]
> ? kthread_worker_fn+0x147/0x147
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536028] [<ffffffff813316b0>]
> ? gs_change+0x13/0x13
> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536054] ---[ end trace
> 3b774941bf3fc468 ]---
>
> Seems to me, that this happens if the btrfs is under heavy load.
I was thinking that everyone using ceph on btrfs is hitting this
WARNING sooner or later.
We have seen this a long time ago:
http://tracker.newdream.net/issues/563
There were several threads on the btrfs list, but there is no solution
yet. Here is one for example:
http://comments.gmane.org/gmane.comp.file-systems.btrfs/14193
The good news is, that I haven't experienced any problems that I could
relate to this warning. (Which doesn't mean that I am happy with the
current state of btrfs).
Regards,
Christian
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BTRFS Warning
2011-12-21 15:35 ` Christian Brunner
@ 2011-12-21 16:25 ` Gregory Farnum
0 siblings, 0 replies; 5+ messages in thread
From: Gregory Farnum @ 2011-12-21 16:25 UTC (permalink / raw)
To: chb; +Cc: Jens Rehpöhler, ceph-devel
On Wed, Dec 21, 2011 at 7:35 AM, Christian Brunner <chb@muc.de> wrote:
> 2011/12/21 Jens Rehpöhler <jens.rehpoehler@filoo.de>:
>> Am 19.12.2011 19:51, schrieb Gregory Farnum:
>>> On Mon, Dec 19, 2011 at 12:28 AM, Jens Rehpöhler
>>> <jens.rehpoehler@filoo.de> wrote:
>>>> Good morning !!
>>>>
>>>> i got the following warning as soon as i use btrfs as underlaying
>>>> filesystem (for stability reasons i use ext4). I converted one OSD back
>>>> to btrfs to give it another try.
>>>>
>>>> kernel: 3.2rc6
>>>> ceph: ceph/stable uptodate 0.39-9-g37e7a52-1~bpo60+1
>>>> dist: debian squeeze
>>>>
>>>> [...]
>>>>
>>>> Anything to worry about ?
>>> This doesn't look familiar to me — if you can reproduce it (or maybe
>>> just provide more detail) the btrfs folks will probably be interested.
>>> -Greg
>>
>> Hi Greg,
>>
>> reproduction is possible, if i destroy one osd und start a fresh resync
>> (actual 550 GB of data).
>> After a short while i get:
>>
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477676] ------------[ cut here
>> ]------------
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477727] WARNING: at
>> fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477772] Hardware name: X8DT3
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.477795] Modules linked in:
>> zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
>> xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
>> brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
>> bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
>> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
>> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
>> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
>> scsi_mod igb dca [last unloaded: scsi_wait_scan]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478130] Pid: 6790, comm:
>> btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478173] Call Trace:
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478199] [<ffffffff81047257>]
>> ? warn_slowpath_common+0x78/0x8c
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478237] [<ffffffffa011ee22>]
>> ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478289] [<ffffffffa01182f3>]
>> ? commit_fs_roots+0xa2/0x159 [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478332] [<ffffffff810ece7c>]
>> ? kmem_cache_free+0x12/0x9e
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478377] [<ffffffffa0118fcd>]
>> ? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478423] [<ffffffff81053026>]
>> ? del_timer_sync+0x34/0x3e
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478453] [<ffffffff81328237>]
>> ? schedule_timeout+0xa8/0xd7
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478482] [<ffffffff81060b69>]
>> ? wake_up_bit+0x20/0x20
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478517] [<ffffffffa0113c8d>]
>> ? transaction_kthread+0x173/0x22d [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478560] [<ffffffffa0113b1a>]
>> ? find_and_setup_root+0xdc/0xdc [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478600] [<ffffffffa0113b1a>]
>> ? find_and_setup_root+0xdc/0xdc [btrfs]
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478630] [<ffffffff8106072d>]
>> ? kthread+0x7a/0x82
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478658] [<ffffffff813316b4>]
>> ? kernel_thread_helper+0x4/0x10
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478687] [<ffffffff810606b3>]
>> ? kthread_worker_fn+0x147/0x147
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478716] [<ffffffff813316b0>]
>> ? gs_change+0x13/0x13
>> Dec 20 19:45:22 fcmsnode4 kernel: [170010.478742] ---[ end trace
>> 3b774941bf3fc467 ]---
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535021] ------------[ cut here
>> ]------------
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535072] WARNING: at
>> fs/btrfs/inode.c:1969 btrfs_orphan_commit_root+0x7f/0x9b [btrfs]()
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535117] Hardware name: X8DT3
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535139] Modules linked in:
>> zram(C) dm_mod rbd loop aes_x86_64 aes_generic cbc kvm_intel
>> xt_multiport ext2 iptable_filter ip_tables vhost_net macvtap macvlan tun
>> brd ebt_arp ebtable_filter ebtables x_tables kvm fuse ceph libceph
>> bridge stp llc ext4 jbd2 crc16 tpm_tis tpm joydev pcspkr ioatdma
>> tpm_bios processor i2c_i801 thermal_sys serio_raw button i2c_core evdev
>> ext3 jbd mbcache btrfs zlib_deflate crc32c libcrc32c sd_mod crc_t10dif
>> usbhid hid uhci_hcd ehci_hcd usbcore ixgbe 3w_sas mdio usb_common
>> scsi_mod igb dca [last unloaded: scsi_wait_scan]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535471] Pid: 6790, comm:
>> btrfs-transacti Tainted: G WC 3.2.0-rc6 #2
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535514] Call Trace:
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535539] [<ffffffff81047257>]
>> ? warn_slowpath_common+0x78/0x8c
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535577] [<ffffffffa011ee22>]
>> ? btrfs_orphan_commit_root+0x7f/0x9b [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535629] [<ffffffffa01182f3>]
>> ? commit_fs_roots+0xa2/0x159 [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535661] [<ffffffff810ece7c>]
>> ? kmem_cache_free+0x12/0x9e
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535697] [<ffffffffa0118fcd>]
>> ? btrfs_commit_transaction+0x3e2/0x71b [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535743] [<ffffffff81053026>]
>> ? del_timer_sync+0x34/0x3e
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535773] [<ffffffff81328237>]
>> ? schedule_timeout+0xa8/0xd7
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535803] [<ffffffff81060b69>]
>> ? wake_up_bit+0x20/0x20
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535838] [<ffffffffa0113c8d>]
>> ? transaction_kthread+0x173/0x22d [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535876] [<ffffffffa0113b1a>]
>> ? find_and_setup_root+0xdc/0xdc [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535914] [<ffffffffa0113b1a>]
>> ? find_and_setup_root+0xdc/0xdc [btrfs]
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535944] [<ffffffff8106072d>]
>> ? kthread+0x7a/0x82
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.535971] [<ffffffff813316b4>]
>> ? kernel_thread_helper+0x4/0x10
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536000] [<ffffffff810606b3>]
>> ? kthread_worker_fn+0x147/0x147
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536028] [<ffffffff813316b0>]
>> ? gs_change+0x13/0x13
>> Dec 20 19:48:57 fcmsnode4 kernel: [170225.536054] ---[ end trace
>> 3b774941bf3fc468 ]---
>>
>> Seems to me, that this happens if the btrfs is under heavy load.
>
> I was thinking that everyone using ceph on btrfs is hitting this
> WARNING sooner or later.
>
> We have seen this a long time ago:
>
> http://tracker.newdream.net/issues/563
>
> There were several threads on the btrfs list, but there is no solution
> yet. Here is one for example:
>
> http://comments.gmane.org/gmane.comp.file-systems.btrfs/14193
>
> The good news is, that I haven't experienced any problems that I could
> relate to this warning. (Which doesn't mean that I am happy with the
> current state of btrfs).
Well the backtrace is different from in that bug, and not one I
remember — but I don't know btrfs real well and I'm not sure which
functions are the important ones there. It certainly *could* be the
same thing; maybe somebody who's written btrfs patches would know...
-Greg
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^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-12-21 16:25 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-12-19 8:28 BTRFS Warning Jens Rehpöhler
2011-12-19 18:51 ` Gregory Farnum
2011-12-21 13:22 ` Jens Rehpöhler
2011-12-21 15:35 ` Christian Brunner
2011-12-21 16:25 ` Gregory Farnum
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