mkfs or wait?

mkfs or wait?

[Lubos Kolouch]

Hello,

I have on one computer damaged btrfs filesystem... it was a strange
crash, it showed about 30% free space, however then the volume crashed
with 'no space left' messages and after reboot it is unusable.

I can mount it, I can df it but when I try for example ls,
ls gets stuck (does not display anything) and I get
- in the syslog
verify_parent_transid: 22336 callbacks suppressed
parent transid verify failed on 1066975232 wanted 125077 found 125075
parent transid verify failed on 974635008 wanted 125077 found 125075
parent transid verify failed on 1066975232 wanted 125077 found 125075
parent transid verify failed on 974635008 wanted 125077 found 125075
parent transid verify failed on 1066975232 wanted 125077 found 125075
parent transid verify failed on 974635008 wanted 125077 found 125075
parent transid verify failed on 1066975232 wanted 125077 found 125075
parent transid verify failed on 974635008 wanted 125077 found 125075
parent transid verify failed on 1066975232 wanted 125077 found 125075
parent transid verify failed on 974635008 wanted 125077 found 125075

- top shows
ls
[btrfs-endio-met]
[btrfs-cache-293]

- btrfs segfaults

It is like this over a day. Should I just mkfs it or is there anything
sensible I could try?

kernel 2.6.35-gentoo-r5, latest git btrfs-progs

Thank you for your advice.

Lubos

Btrfs troubles

[Konstantinos Skarlatos]

  Hello, I have these messages from a two not full (111GB of 2TB and 
452GB of 2TB free) filesystems.
Eventually the filesystem mounts, but I am unable to create new files, 
even when i delete data.
Most files are 1.45GB.

[root@linuxserver ~]# btrfs filesystem df /storage/WD20_1
Data: total=1.81TB, used=1.71TB
Metadata: total=2.63GB, used=2.43GB
System: total=12.00MB, used=204.00KB

[root@linuxserver ~]# btrfsck /dev/sdb1
found 1878986375168 bytes used err is 0
total csum bytes: 1832396384
total tree bytes: 2612477952
total fs tree bytes: 22331392
btree space waste bytes: 595037490
file data blocks allocated: 1922007609344
  referenced 1876364451840
Btrfs Btrfs v0.19

[root@linuxserver ~]# btrfs filesystem df /storage/WD20_2
Data: total=1.81TB, used=1.37TB
Metadata: total=2.51GB, used=2.47GB
System: total=12.00MB, used=204.00KB

  [root@linuxserver ~]# btrfsck /dev/sda1
found 1512592834560 bytes used err is 0
total csum bytes: 1474551008
total tree bytes: 2652602368
total fs tree bytes: 301985792
btree space waste bytes: 599008365
file data blocks allocated: 1510591008768
  referenced 1607206682624
Btrfs Btrfs v0.19




------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:3441 
btrfs_block_rsv_check+0x15e/0x190 [btrfs]()
Hardware name: GA-MA785G-UD3H
Modules linked in: btrfs zlib_deflate crc32c libcrc32c ipv6 ext2 usbhid 
hid usb_storage snd_hda_codec_atihdmi radeon snd_hda_intel snd_hda_codec 
ttm ohci_hcd drm_kms_helper ehci_hcd drm i2c_algo_bit snd_seq_dummy 
snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss 
snd_hwdep snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 
usbcore shpchp pcspkr serio_raw r8169 evdev i2c_piix4 pci_hotplug 
processor thermal edac_core k10temp button edac_mce_amd i2c_core mii sg 
wmi rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sd_mod pata_acpi 
ahci libahci pata_atiixp libata scsi_mod
Pid: 12735, comm: ls Not tainted 2.6.35-ARCH #1
Call Trace:
  [<ffffffff8105288a>] warn_slowpath_common+0x7a/0xb0
  [<ffffffff810528d5>] warn_slowpath_null+0x15/0x20
  [<ffffffffa07f8c9e>] btrfs_block_rsv_check+0x15e/0x190 [btrfs]
  [<ffffffffa080976a>] __btrfs_end_transaction+0x19a/0x220 [btrfs]
  [<ffffffffa080980b>] btrfs_end_transaction+0xb/0x10 [btrfs]
  [<ffffffffa081342b>] btrfs_dirty_inode+0x8b/0x120 [btrfs]
  [<ffffffff81145a86>] __mark_inode_dirty+0x36/0x170
  [<ffffffff81139c0d>] touch_atime+0x12d/0x170
  [<ffffffff81134330>] ? filldir+0x0/0xd0
  [<ffffffff81134586>] vfs_readdir+0xc6/0xd0
  [<ffffffff81134670>] sys_getdents+0x80/0xe0
  [<ffffffff81373765>] ? page_fault+0x25/0x30
  [<ffffffff81009e82>] system_call_fastpath+0x16/0x1b
---[ end trace a296d77e7bd54918 ]---
block_rsv size 872415232 reserved 206303232 freed 0 0
INFO: task ls:12735 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
ls            D 0000000000000000     0 12735  11939 0x00000000
  ffff88004aa5fd58 0000000000000082 ffff880001894fa8 0000000000000000
  0000000000014f40 0000000000014f40 ffff88004aa5ffd8 ffff88004aa5ffd8
  ffff88004aa5ffd8 ffff880057c5ef00 ffff88004aa5ffd8 0000000000014f40
Call Trace:
  [<ffffffffa0808654>] wait_current_trans.clone.19+0x84/0xe0 [btrfs]
  [<ffffffff810718d0>] ? autoremove_wake_function+0x0/0x40
  [<ffffffffa08098ef>] start_transaction+0xdf/0x250 [btrfs]
  [<ffffffffa0809aae>] btrfs_start_transaction+0xe/0x10 [btrfs]
  [<ffffffffa0813438>] btrfs_dirty_inode+0x98/0x120 [btrfs]
  [<ffffffff81145a86>] __mark_inode_dirty+0x36/0x170
  [<ffffffff81139c0d>] touch_atime+0x12d/0x170
  [<ffffffff81134330>] ? filldir+0x0/0xd0
  [<ffffffff81134586>] vfs_readdir+0xc6/0xd0
  [<ffffffff81134670>] sys_getdents+0x80/0xe0
  [<ffffffff81373765>] ? page_fault+0x25/0x30
  [<ffffffff81009e82>] system_call_fastpath+0x16/0x1b
------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:3441 
btrfs_block_rsv_check+0x15e/0x190 [btrfs]()
Hardware name: GA-MA785G-UD3H
Modules linked in: btrfs zlib_deflate crc32c libcrc32c ipv6 ext2 usbhid 
hid usb_storage snd_hda_codec_atihdmi radeon snd_hda_intel snd_hda_codec 
ttm ohci_hcd drm_kms_helper ehci_hcd drm i2c_algo_bit snd_seq_dummy 
snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss 
snd_hwdep snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 
usbcore shpchp pcspkr serio_raw r8169 evdev i2c_piix4 pci_hotplug 
processor thermal edac_core k10temp button edac_mce_amd i2c_core mii sg 
wmi rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sd_mod pata_acpi 
ahci libahci pata_atiixp libata scsi_mod
Pid: 12726, comm: btrfs-transacti Tainted: G        W   2.6.35-ARCH #1
Call Trace:
  [<ffffffff8105288a>] warn_slowpath_common+0x7a/0xb0
  [<ffffffff810528d5>] warn_slowpath_null+0x15/0x20
  [<ffffffffa07f8c9e>] btrfs_block_rsv_check+0x15e/0x190 [btrfs]
  [<ffffffffa080976a>] __btrfs_end_transaction+0x19a/0x220 [btrfs]
  [<ffffffffa080980b>] btrfs_end_transaction+0xb/0x10 [btrfs]
  [<ffffffffa080948e>] btrfs_commit_transaction+0x62e/0x770 [btrfs]
  [<ffffffff81371739>] ? mutex_unlock+0x9/0x10
  [<ffffffffa08099d3>] ? start_transaction+0x1c3/0x250 [btrfs]
  [<ffffffff810718d0>] ? autoremove_wake_function+0x0/0x40
  [<ffffffffa0803373>] transaction_kthread+0x273/0x290 [btrfs]
  [<ffffffffa0803100>] ? transaction_kthread+0x0/0x290 [btrfs]
  [<ffffffff8107133e>] kthread+0x8e/0xa0
  [<ffffffff8100aca4>] kernel_thread_helper+0x4/0x10
  [<ffffffff810712b0>] ? kthread+0x0/0xa0
  [<ffffffff8100aca0>] ? kernel_thread_helper+0x0/0x10
---[ end trace a296d77e7bd54919 ]---
block_rsv size 872415232 reserved 206303232 freed 0 0
------------[ cut here ]------------
WARNING: at fs/btrfs/extent-tree.c:3441 
btrfs_block_rsv_check+0x15e/0x190 [btrfs]()
Hardware name: GA-MA785G-UD3H
Modules linked in: btrfs zlib_deflate crc32c libcrc32c ipv6 ext2 usbhid 
hid usb_storage snd_hda_codec_atihdmi radeon snd_hda_intel snd_hda_codec 
ttm ohci_hcd drm_kms_helper ehci_hcd drm i2c_algo_bit snd_seq_dummy 
snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss 
snd_hwdep snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 
usbcore shpchp pcspkr serio_raw r8169 evdev i2c_piix4 pci_hotplug 
processor thermal edac_core k10temp button edac_mce_amd i2c_core mii sg 
wmi rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sd_mod pata_acpi 
ahci libahci pata_atiixp libata scsi_mod
Pid: 12735, comm: ls Tainted: G        W   2.6.35-ARCH #1
Call Trace:
  [<ffffffff8105288a>] warn_slowpath_common+0x7a/0xb0
  [<ffffffff810528d5>] warn_slowpath_null+0x15/0x20
  [<ffffffffa07f8c9e>] btrfs_block_rsv_check+0x15e/0x190 [btrfs]
  [<ffffffffa080976a>] __btrfs_end_transaction+0x19a/0x220 [btrfs]
  [<ffffffffa080980b>] btrfs_end_transaction+0xb/0x10 [btrfs]
  [<ffffffffa0809a4e>] start_transaction+0x23e/0x250 [btrfs]
  [<ffffffffa0809aae>] btrfs_start_transaction+0xe/0x10 [btrfs]
  [<ffffffffa0813438>] btrfs_dirty_inode+0x98/0x120 [btrfs]
  [<ffffffff81145a86>] __mark_inode_dirty+0x36/0x170
  [<ffffffff81139c0d>] touch_atime+0x12d/0x170
  [<ffffffff81134330>] ? filldir+0x0/0xd0
  [<ffffffff81134586>] vfs_readdir+0xc6/0xd0
  [<ffffffff81134670>] sys_getdents+0x80/0xe0
  [<ffffffff81373765>] ? page_fault+0x25/0x30
  [<ffffffff81009e82>] system_call_fastpath+0x16/0x1b
---[ end trace a296d77e7bd5491a ]---
block_rsv size 872415232 reserved 206303232 freed 0 0
btrfs: fail to dirty  inode 256 error -28

Re: mkfs or wait?

[Lubos Kolouch]

Lubos Kolouch, Tue, 07 Sep 2010 05:55:12 +0000:

> Hello,
> 
> I have on one computer damaged btrfs filesystem... it was a strange
> crash, it showed about 30% free space, however then the volume crashed
> with 'no space left' messages and after reboot it is unusable.
> 
> I can mount it, I can df it but when I try for example ls, ls gets stuck
> (does not display anything) and I get - in the syslog
> verify_parent_transid: 22336 callbacks suppressed parent transid verify
> failed on 1066975232 wanted 125077 found 125075 parent transid verify
> failed on 974635008 wanted 125077 found 125075 parent transid verify
> failed on 1066975232 wanted 125077 found 125075 parent transid verify
> failed on 974635008 wanted 125077 found 125075 parent transid verify
> failed on 1066975232 wanted 125077 found 125075 parent transid verify
> failed on 974635008 wanted 125077 found 125075 parent transid verify
> failed on 1066975232 wanted 125077 found 125075 parent transid verify
> failed on 974635008 wanted 125077 found 125075 parent transid verify
> failed on 1066975232 wanted 125077 found 125075 parent transid verify
> failed on 974635008 wanted 125077 found 125075
> 
> - top shows
> ls
> [btrfs-endio-met]
> [btrfs-cache-293]
> 
> - btrfs segfaults
> 
> It is like this over a day. Should I just mkfs it or is there anything
> sensible I could try?
> 
> kernel 2.6.35-gentoo-r5, latest git btrfs-progs
> 
> Thank you for your advice.
> 
> Lubos

Funny thing - under 2.6.34-r1 it works, ie. I can mount it and view files
(even though the errors in log are still there).

Regression in 2.6.35?

Lubos

Re: mkfs or wait?

[Daniel Kozlowski]

I had a similar issue There was a Segmenation fault showing up in
dmesg that wasen't showing up in /var/log/messages. In my case
upgrading to the git tree let me read and write to the filesystem.

On Tue, Sep 7, 2010 at 9:45 AM, Lubos Kolouch <lubos.kolouch@gmail.com>=
 wrote:
> Lubos Kolouch, Tue, 07 Sep 2010 05:55:12 +0000:
>
>> Hello,
>>
>> I have on one computer damaged btrfs filesystem... it was a strange
>> crash, it showed about 30% free space, however then the volume crash=
ed
>> with 'no space left' messages and after reboot it is unusable.
>>
>> I can mount it, I can df it but when I try for example ls, ls gets s=
tuck
>> (does not display anything) and I get - in the syslog
>> verify_parent_transid: 22336 callbacks suppressed parent transid ver=
ify
>> failed on 1066975232 wanted 125077 found 125075 parent transid verif=
y
>> failed on 974635008 wanted 125077 found 125075 parent transid verify
>> failed on 1066975232 wanted 125077 found 125075 parent transid verif=
y
>> failed on 974635008 wanted 125077 found 125075 parent transid verify
>> failed on 1066975232 wanted 125077 found 125075 parent transid verif=
y
>> failed on 974635008 wanted 125077 found 125075 parent transid verify
>> failed on 1066975232 wanted 125077 found 125075 parent transid verif=
y
>> failed on 974635008 wanted 125077 found 125075 parent transid verify
>> failed on 1066975232 wanted 125077 found 125075 parent transid verif=
y
>> failed on 974635008 wanted 125077 found 125075
>>
>> - top shows
>> ls
>> [btrfs-endio-met]
>> [btrfs-cache-293]
>>
>> - btrfs segfaults
>>
>> It is like this over a day. Should I just mkfs it or is there anythi=
ng
>> sensible I could try?
>>
>> kernel 2.6.35-gentoo-r5, latest git btrfs-progs
>>
>> Thank you for your advice.
>>
>> Lubos
>
> Funny thing - under 2.6.34-r1 it works, ie. I can mount it and view f=
iles
> (even though the errors in log are still there).
>
> Regression in 2.6.35?
>
> Lubos
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs=
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> the body of a message to majordomo@vger.kernel.org
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>



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