Hi!
Several times I try repair my btrfs partition with follow commands:
[root@localhost ~]# umount /home
root@localhost ~]# btrfs check --repair /dev/sdb1
enabling repair mode
Fixed 0 roots.
Checking filesystem on /dev/sdb1
UUID: 82df2d84-bf54-46cb-84ba-c88e93677948
checking extents
checking free space cache
cache and super generation don't match, space cache will be invalidated
checking fs roots
root 5 inode 14121739 errors 2000, link count wrong
unresolved ref dir 12843363 index 36917 namelen 11 name Preferences
filetype 0 errors 3, no dir item, no dir index
root 5 inode 14121759 errors 2000, link count wrong
unresolved ref dir 139955 index 340700 namelen 18 name
session_state.xspf filetype 0 errors 3, no dir item, no dir index
found 2897923331138 bytes used err is 1
The problem seems not hard to repair in btrfs-progs.
But I'm also curious about why this happens.
Is there any ungraceful shutdown or things like that?
Also, would you mind sending us the btrfs-image dump?
btrfs-debug-tree output would also help, although it may be bigger than
output of btrfs-image.
Thanks,
Qu
total csum bytes: 3100962412
total tree bytes: 4638130176
total fs tree bytes: 950992896
total extent tree bytes: 142475264
btree space waste bytes: 608962027
file data blocks allocated: 33183423946752
referenced 3177308782592
Btrfs v3.17
# rpm -q btrfs-progs
btrfs-progs-3.17-1.fc21.x86_64
And every time I see this messages.
--
Best Regards,
Mike Gavrilov.
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