Hi all,
I'm getting some strange errors and I need some help diagnosing where the
problem is.
You can see from below that the error is "csum failed ino 5641".
This is a new SSD that is running in raid1. When I first noticed the error (on
both drives) I copied all the data off the drives, reformatted
and copied the data back. I was running 3.13.11 and upgraded to 3.14.2 just
incase there was a bugfix.
I still had the error on one drive so I converted the array back to single, ran
dd if=/dev/zero of=/dev/sdd1
and readded sdd1 and rebalanced. No error was reported
I'm also running the root and swap partitions on the same physical drives and
they are ok (root is btrfs also), which makes me suspect
that the SSD is ok. I did a scrub on both drives and that found no errors. What
do I try next?
[44778.232540] BTRFS info (device sdd1): relocating block group 333996621824
flags 1
[44780.458408] BTRFS info (device sdd1): found 339 extents
[44783.494674] BTRFS info (device sdd1): found 339 extents
[44783.546293] BTRFS info (device sdd1): relocating block group 331849138176
flags 1
[44786.143536] BTRFS info (device sdd1): found 164 extents
[44789.256777] BTRFS info (device sdd1): found 164 extents
[49217.915725] kvm: zapping shadow pages for mmio generation wraparound
[141968.885166] BTRFS error (device sdd1): csum failed ino 5641 off 54112157696
csum 2741395493 expected csum 3151521372
[141968.885216] BTRFS error (device sdd1): csum failed ino 5641 off 54412632064
csum 3489516372 expected csum 2741395493
[141968.887816] BTRFS error (device sdd1): csum failed ino 5641 off 27601571840
csum 1878206089 expected csum 3203096954
[141969.887794] BTRFS error (device sdd1): csum failed ino 5641 off 54112157696
csum 2741395493 expected csum 3151521372
[141970.895408] BTRFS error (device sdd1): csum failed ino 5641 off 7849897984
csum 2833474655 expected csum 2585631118
[141970.895437] BTRFS error (device sdd1): csum failed ino 5641 off 8398065664
csum 2001723841 expected csum 2913537154
[141970.895450] BTRFS error (device sdd1): csum failed ino 5641 off 10395713536
csum 2001723841 expected csum 2833474655
[141971.895529] BTRFS error (device sdd1): csum failed ino 5641 off 10395713536
csum 2913537154 expected csum 2833474655
[141971.895541] BTRFS error (device sdd1): csum failed ino 5641 off 7849897984
csum 2913537154 expected csum 2585631118
[141972.894867] BTRFS error (device sdd1): csum failed ino 5641 off 10395713536
csum 369396853 expected csum 2833474655
[145579.088097] BTRFS error (device sdd1): csum failed ino 5641 off 54317748224
csum 1538824619 expected csum 2260594561
[145579.088110] BTRFS error (device sdd1): csum failed ino 5641 off 54412632064
csum 257502146 expected csum 3543777931
[145580.087459] BTRFS error (device sdd1): csum failed ino 5641 off 54317748224
csum 3543777931 expected csum 2260594561
[171255.071570] 3w-9xxx: scsi0: AEN: INFO (0x04:0x0029): Verify started:unit=2.
[181556.516699] BTRFS error (device sdd1): csum failed ino 5641 off 54317748224
csum 1227121981 expected csum 4177569466
[181557.517271] BTRFS error (device sdd1): csum failed ino 5641 off 53179822080
csum 4130109553 expected csum 1722742324
[188752.222042] BTRFS error (device sdd1): csum failed ino 5641 off 54317748224
csum 50100434 expected csum 4177569466
[200568.511268] 3w-9xxx: scsi0: AEN: INFO (0x04:0x002B): Verify
completed:unit=2.
[202095.611465] BTRFS error (device sdd1): csum failed ino 5641 off 12205871104
csum 910010336 expected csum 2948706421
[203143.317917] BTRFS error (device sdd1): csum failed ino 5641 off 55994003456
csum 648604663 expected csum 2485194978
vm-server ~ # btrfs scrub stat /dev/sdd1
scrub status for 9baf63f7-a9d6-456c-8fdd-1a8fdb21958f
scrub started at Sat May 3 17:59:47 2014 and finished after 659 seconds
total bytes scrubbed: 273.64GiB with 0 errors
vm-server ~ # btrfs scrub stat /
scrub status for 58d27dbd-7c1e-4ef7-8d43-e93df1537b08
scrub started at Sat May 3 19:22:58 2014 and finished after 49 seconds
total bytes scrubbed: 18.49GiB with 0 errors
vm-server ~ # uname -a
Linux vm-server 3.14.2-gentoo #1 SMP PREEMPT Thu May 1 00:02:32 EST 2014 x86_64
Intel(R) Core(TM) i7-2600K CPU @ 3.40GHz GenuineIntel GNU/Linux
vm-server ~ # btrfs --version
Btrfs v3.14.1
vm-server ~ # btrfs fi show
Label: 'Root' uuid: 58d27dbd-7c1e-4ef7-8d43-e93df1537b08
Total devices 2 FS bytes used 18.49GiB
devid 3 size 40.00GiB used 35.03GiB path /dev/sde3
devid 4 size 40.00GiB used 35.03GiB path /dev/sdd3
Label: 'storage' uuid: df3d4a9c-ed6c-4867-8991-a018276f6f3c
Total devices 2 FS bytes used 1.13TiB
devid 5 size 2.69TiB used 1.16TiB path /dev/sdb1
devid 6 size 2.69TiB used 1.16TiB path /dev/sda1
Label: 'backup' uuid: b24d05da-6b0a-4ab0-8f2f-21ea5416e9e9
Total devices 3 FS bytes used 899.20GiB
devid 3 size 901.92GiB used 616.03GiB path /dev/sdf1
devid 4 size 892.25GiB used 606.00GiB path /dev/sdg1
devid 5 size 892.25GiB used 606.03GiB path /dev/sdh1
Label: 'Fast' uuid: 9baf63f7-a9d6-456c-8fdd-1a8fdb21958f
Total devices 2 FS bytes used 273.65GiB
devid 2 size 407.12GiB used 304.03GiB path /dev/sde1
devid 3 size 407.12GiB used 304.03GiB path /dev/sdd1
Btrfs v3.14.1
vm-server ~ # btrfs fi df /
Data, RAID1: total=33.00GiB, used=17.60GiB
System, RAID1: total=32.00MiB, used=16.00KiB
Metadata, RAID1: total=2.00GiB, used=906.33MiB
vm-server ~ # btrfs fi df /media/fast/
Data, RAID1: total=302.00GiB, used=273.23GiB
System, RAID1: total=32.00MiB, used=80.00KiB
Metadata, RAID1: total=2.00GiB, used=421.42MiB
Thanks,
Paul.
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