* "btrfs: open_ctree failed" error
@ 2011-12-21 13:54 Malwina Bartoszynska
2011-12-21 19:06 ` Chris Mason
0 siblings, 1 reply; 4+ messages in thread
From: Malwina Bartoszynska @ 2011-12-21 13:54 UTC (permalink / raw)
To: linux-btrfs
Hello,
after unmounting btrfs partition, I can't mount it again.
root@xxx:~# btrfs device scan
Scanning for Btrfs filesystems
root@xxx:~# mount /dev/sdb /data/osd.0/
mount: wrong fs type, bad option, bad superblock on /dev/sdb,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so
root@xxxx:~# dmesg|tail
[57192.607912] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid
2 transid14429 /dev/sda
[57204.796573] end_request: I/O error, dev fd0, sector 0
[57231.660913] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid 1
transid 14429 /dev/sdb
[57231.680387] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680546] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680705] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680861] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680869] parent transid verify failed on 424308420608 wanted 6970
found 8959
[57231.680875] Failed to read block groups: -5
[57231.704165] btrfs: open_ctree failed
root@xxx:~#
root@xxx:~# btrfs filesystem show
Label: none uuid: ed25c604-3e11-4459-85b5-e4090c4d22d0
Total devices 4 FS bytes used 111.07GB
devid 2 size 931.51GB used 56.02GB path /dev/sda
devid 1 size 931.51GB used 56.02GB path /dev/sdb
devid 4 size 232.89GB used 34.00GB path /dev/sdd
devid 3 size 184.26GB used 34.00GB path /dev/sdc4
I was trying to fix it using btrfsc (from btrf-tools 0.19+20100601-3ubuntu3):
root@xxx:~# btrfsck /dev/sdb
parent transid verify failed on 424308420608 wanted 6970 found 8959
parent transid verify failed on 424308420608 wanted 6970 found 8959
parent transid verify failed on 424308420608 wanted 6970 found 8959
Segmentation fault
But it failed.
Also btrfsc from current git repository failed.
root@xxx:/usr/src/test/btrfs-progs# ./btrfsck /dev/sdb
parent transid verify failed on 424308420608 wanted 6970 found 8959
parent transid verify failed on 424308420608 wanted 6970 found 8959
parent transid verify failed on 424308420608 wanted 6970 found 8959
parent transid verify failed on 424308420608 wanted 6970 found 8959
Ignoring transid failure
parent transid verify failed on 426205605888 wanted 8371 found 10836
parent transid verify failed on 426205605888 wanted 8371 found 10836
parent transid verify failed on 426205605888 wanted 8371 found 10836
parent transid verify failed on 426205605888 wanted 8371 found 10836
Ignoring transid failure
parent transid verify failed on 424601571328 wanted 8959 found 10264
parent transid verify failed on 424601571328 wanted 8959 found 10264
parent transid verify failed on 424601571328 wanted 8959 found 10264
parent transid verify failed on 424601571328 wanted 8959 found 10264
Ignoring transid failure
parent transid verify failed on 422394281984 wanted 6042 found 14369
parent transid verify failed on 422394281984 wanted 6042 found 14369
parent transid verify failed on 422394281984 wanted 6042 found 14369
parent transid verify failed on 422394281984 wanted 6042 found 14369
Ignoring transid failure
parent transid verify failed on 422394277888 wanted 6042 found 14369
parent transid verify failed on 422394277888 wanted 6042 found 14369
parent transid verify failed on 422394277888 wanted 6042 found 14369
parent transid verify failed on 422394277888 wanted 6042 found 14369
Ignoring transid failure
parent transid verify failed on 424867557376 wanted 8744 found 11654
parent transid verify failed on 424867557376 wanted 8744 found 11654
parent transid verify failed on 424867557376 wanted 8744 found 11654
parent transid verify failed on 424867557376 wanted 8744 found 11654
Ignoring transid failure
parent transid verify failed on 426748997632 wanted 8747 found 9681
parent transid verify failed on 426748997632 wanted 8747 found 9681
parent transid verify failed on 426748997632 wanted 8747 found 9681
parent transid verify failed on 426748997632 wanted 8747 found 9681
Ignoring transid failure
parent transid verify failed on 426748993536 wanted 8747 found 9681
parent transid verify failed on 426748993536 wanted 8747 found 9681
parent transid verify failed on 426748993536 wanted 8747 found 9681
parent transid verify failed on 426748993536 wanted 8747 found 9681
Ignoring transid failure
parent transid verify failed on 426749001728 wanted 8747 found 9681
parent transid verify failed on 426749001728 wanted 8747 found 9681
parent transid verify failed on 426749001728 wanted 8747 found 9681
parent transid verify failed on 426749001728 wanted 8747 found 9681
Ignoring transid failure
parent transid verify failed on 426749005824 wanted 8747 found 9681
parent transid verify failed on 426749005824 wanted 8747 found 9681
parent transid verify failed on 426749005824 wanted 8747 found 9681
parent transid verify failed on 426749005824 wanted 8747 found 9681
Ignoring transid failure
parent transid verify failed on 423647268864 wanted 6496 found 11645
parent transid verify failed on 423647268864 wanted 6496 found 11645
parent transid verify failed on 423647268864 wanted 6496 found 11645
parent transid verify failed on 423647268864 wanted 6496 found 11645
Ignoring transid failure
parent transid verify failed on 424308420608 wanted 6970 found 8959
Ignoring transid failure
leaf 417616629760 items 1 free space 3838 generation 5974 owner 7
fs uuid ed25c604-3e11-4459-85b5-e4090c4d22d0
chunk uuid b2b76fcf-3e03-4f9c-8cd1-4cad10c8bb2a
item 0 key (EXTENT_CSUM EXTENT_CSUM 375473815552) itemoff 3863
itemsize
132
extent csum item
failed to find block number 292758224896
Aborted
I am using Btrfs v0.19 on Ubuntu 11.10(kernel 3.0.0-14-generic x86_64).
How can I fix it?
Best regards,
--
Malwina Bartoszynska
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: "btrfs: open_ctree failed" error
2011-12-21 13:54 "btrfs: open_ctree failed" error Malwina Bartoszynska
@ 2011-12-21 19:06 ` Chris Mason
2011-12-22 9:43 ` Malwina Bartoszynska
0 siblings, 1 reply; 4+ messages in thread
From: Chris Mason @ 2011-12-21 19:06 UTC (permalink / raw)
To: Malwina Bartoszynska; +Cc: linux-btrfs
On Wed, Dec 21, 2011 at 01:54:06PM +0000, Malwina Bartoszynska wrote:
> Hello,
> after unmounting btrfs partition, I can't mount it again.
>
> root@xxx:~# btrfs device scan
> Scanning for Btrfs filesystems
> root@xxx:~# mount /dev/sdb /data/osd.0/
> mount: wrong fs type, bad option, bad superblock on /dev/sdb,
> missing codepage or helper program, or other error
> In some cases useful info is found in syslog - try
> dmesg | tail or so
>
> root@xxxx:~# dmesg|tail
> [57192.607912] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid
> 2 transid14429 /dev/sda
> [57204.796573] end_request: I/O error, dev fd0, sector 0
> [57231.660913] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid 1
> transid 14429 /dev/sdb
> [57231.680387] parent transid verify failed on 424308420608 wanted 6970
> found 8959
> [57231.680546] parent transid verify failed on 424308420608 wanted 6970
> found 8959
> [57231.680705] parent transid verify failed on 424308420608 wanted 6970
> found 8959
> [57231.680861] parent transid verify failed on 424308420608 wanted 6970
> found 8959
> [57231.680869] parent transid verify failed on 424308420608 wanted 6970
> found 8959
> [57231.680875] Failed to read block groups: -5
> [57231.704165] btrfs: open_ctree failed
Can you tell us more about this filesystem? Was there an unclean
shutdown or did you just unmount, mount again?
The confusing thing is that all of your disks seem to have the same copy
of the block, so it looks like things were written properly.
-chris
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: "btrfs: open_ctree failed" error
2011-12-21 19:06 ` Chris Mason
@ 2011-12-22 9:43 ` Malwina Bartoszynska
2012-01-31 15:53 ` Max
0 siblings, 1 reply; 4+ messages in thread
From: Malwina Bartoszynska @ 2011-12-22 9:43 UTC (permalink / raw)
To: Chris Mason; +Cc: linux-btrfs
W dniu 2011-12-21 20:06, Chris Mason pisze:
> On Wed, Dec 21, 2011 at 01:54:06PM +0000, Malwina Bartoszynska wrote:
>> Hello,
>> after unmounting btrfs partition, I can't mount it again.
>>
>> root@xxx:~# btrfs device scan
>> Scanning for Btrfs filesystems
>> root@xxx:~# mount /dev/sdb /data/osd.0/
>> mount: wrong fs type, bad option, bad superblock on /dev/sdb,
>> missing codepage or helper program, or other error
>> In some cases useful info is found in syslog - try
>> dmesg | tail or so
>>
>> root@xxxx:~# dmesg|tail
>> [57192.607912] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid
>> 2 transid14429 /dev/sda
>> [57204.796573] end_request: I/O error, dev fd0, sector 0
>> [57231.660913] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid 1
>> transid 14429 /dev/sdb
>> [57231.680387] parent transid verify failed on 424308420608 wanted 6970
>> found 8959
>> [57231.680546] parent transid verify failed on 424308420608 wanted 6970
>> found 8959
>> [57231.680705] parent transid verify failed on 424308420608 wanted 6970
>> found 8959
>> [57231.680861] parent transid verify failed on 424308420608 wanted 6970
>> found 8959
>> [57231.680869] parent transid verify failed on 424308420608 wanted 6970
>> found 8959
>> [57231.680875] Failed to read block groups: -5
>> [57231.704165] btrfs: open_ctree failed
> Can you tell us more about this filesystem? Was there an unclean
> shutdown or did you just unmount, mount again?
>
> The confusing thing is that all of your disks seem to have the same copy
> of the block, so it looks like things were written properly.
>
> -chris
There was no shutdown before this, filesystem was just unmounted(which
looked as properly done - no errors). Then tried to mount it again.
Is there way of fixing it?
--
Malwina Bartoszynska
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re:
2011-12-22 9:43 ` Malwina Bartoszynska
@ 2012-01-31 15:53 ` Max
0 siblings, 0 replies; 4+ messages in thread
From: Max @ 2012-01-31 15:53 UTC (permalink / raw)
To: linux-btrfs
Malwina Bartoszynska <m.bartoszynska <at> rootbox.com> writes:
>
> W dniu 2011-12-21 20:06, Chris Mason pisze:
> > On Wed, Dec 21, 2011 at 01:54:06PM +0000, Malwina Bartoszynska wrote:
> >> Hello,
> >> after unmounting btrfs partition, I can't mount it again.
> >>
> >> root <at> xxx:~# btrfs device scan
> >> Scanning for Btrfs filesystems
> >> root <at> xxx:~# mount /dev/sdb /data/osd.0/
> >> mount: wrong fs type, bad option, bad superblock on /dev/sdb,
> >> missing codepage or helper program, or other error
> >> In some cases useful info is found in syslog - try
> >> dmesg | tail or so
> >>
> >> root <at> xxxx:~# dmesg|tail
> >> [57192.607912] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid
> >> 2 transid14429 /dev/sda
> >> [57204.796573] end_request: I/O error, dev fd0, sector 0
> >> [57231.660913] device fsid ed25c604-3e11-4459-85b5-e4090c4d22d0 devid 1
> >> transid 14429 /dev/sdb
> >> [57231.680387] parent transid verify failed on 424308420608 wanted 6970
> >> found 8959
> >> [57231.680546] parent transid verify failed on 424308420608 wanted 6970
> >> found 8959
> >> [57231.680705] parent transid verify failed on 424308420608 wanted 6970
> >> found 8959
> >> [57231.680861] parent transid verify failed on 424308420608 wanted 6970
> >> found 8959
> >> [57231.680869] parent transid verify failed on 424308420608 wanted 6970
> >> found 8959
> >> [57231.680875] Failed to read block groups: -5
> >> [57231.704165] btrfs: open_ctree failed
> > Can you tell us more about this filesystem? Was there an unclean
> > shutdown or did you just unmount, mount again?
> >
> > The confusing thing is that all of your disks seem to have the same copy
> > of the block, so it looks like things were written properly.
> >
> > -chris
> There was no shutdown before this, filesystem was just unmounted(which
> looked as properly done - no errors). Then tried to mount it again.
> Is there way of fixing it?
> --
> Malwina Bartoszynska
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo <at> vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
>
I have the same problem. In my case the failure happens during parallel writing
several files. I did wget from several sources in parallel
'ls /srv/shared/Downloads/xxx/xxx/' blocked.
and dmesg gave:
[112920.940110] INFO: task btrfs-transacti:719 blocked for more than 120
seconds.
[112920.965833] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this
message.
[112920.988255] btrfs-transacti D ffffffff81805120 0 719 2 0x00000000
[112920.988266] ffff880b857e3d10 0000000000000046 ffff880b80b08198
0000000000000000
[112920.988273] ffff880b857e3fd8 ffff880b857e3fd8 ffff880b857e3fd8
0000000000012a40
[112920.988279] ffffffff81c0b020 ffff880b8c0c0000 ffff880b857e3d10
ffff880945187a40
[112920.988298] Call Trace:
[112920.988315] [<ffffffff8160492f>] schedule+0x3f/0x60
[112920.988326] [<ffffffff81604f75>] schedule_timeout+0x2a5/0x320
[112920.988338] [<ffffffff810329a9>] ? default_spin_lock_flags+0x9/0x10
[112920.988371] [<ffffffffa003ba15>] btrfs_commit_transaction+0x245/0x860
[btrfs]
[112920.988384] [<ffffffff81081660>] ? add_wait_queue+0x60/0x60
[112920.988414] [<ffffffffa00347b5>] transaction_kthread+0x275/0x290 [btrfs]
[112920.988437] [<ffffffffa0034540>] ? btrfs_congested_fn+0xb0/0xb0 [btrfs]
[112920.988448] [<ffffffff81080bbc>] kthread+0x8c/0xa0
[112920.988458] [<ffffffff8160fca4>] kernel_thread_helper+0x4/0x10
[112920.988469] [<ffffffff81080b30>] ? flush_kthread_worker+0xa0/0xa0
[112920.988479] [<ffffffff8160fca0>] ? gs_change+0x13/0x13
after reboot the disk was not mounted at all.
I tried to fix it.
original btrfsck didn't work at all.
~$ btrfsck /dev/vdc
Could not open /dev/vdc
after manual update to btrfs-tools_0.19+20111105-2_amd64.deb
it gave me:
~$ sudo btrfsck /dev/vdc
parent transid verify failed on 20971520 wanted 1347 found 3121
parent transid verify failed on 20971520 wanted 1347 found 3121
parent transid verify failed on 20971520 wanted 1347 found 3121
parent transid verify failed on 20971520 wanted 1347 found 3121
Ignoring transid failure
parent transid verify failed on 29470720 wanted 1357 found 3231
parent transid verify failed on 29470720 wanted 1357 found 3231
parent transid verify failed on 29470720 wanted 1357 found 3231
parent transid verify failed on 29470720 wanted 1357 found 3231
Ignoring transid failure
parent transid verify failed on 29470720 wanted 1357 found 3231
Ignoring transid failure
parent transid verify failed on 29487104 wanted 1357 found 3235
parent transid verify failed on 29487104 wanted 1357 found 3235
parent transid verify failed on 29487104 wanted 1357 found 3235
parent transid verify failed on 29487104 wanted 1357 found 3235
Ignoring transid failure
leaf 29487104 items 1 free space 3454 generation 3235 owner 7
fs uuid c5ce4702-2dbf-4b57-8067-bd6129fc124b
chunk uuid 0ffa84fe-33a3-4b8e-95a4-de5f93e88163
item 0 key (EXTENT_CSUM EXTENT_CSUM 64343257088) itemoff 3479 itemsize
516
extent csum item
failed to find block number 150802432
Is it possible to fix it?
I don't want to download 500 GB data again.
Regards,
Max
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-01-31 15:53 UTC | newest]
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2011-12-21 13:54 "btrfs: open_ctree failed" error Malwina Bartoszynska
2011-12-21 19:06 ` Chris Mason
2011-12-22 9:43 ` Malwina Bartoszynska
2012-01-31 15:53 ` Max
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