Btrfsck repair, strange df numbers and cannot write

Hi,

After doing a btrfsck --repair on my file system, it now has very strange numbers in df:

[root ~]# df -h | grep sdc
/dev/sdc 15T -64Z 16E 101% /usr/data

Prior to this it was 81% used.

I can read the files, but i cannot write a file.

Does anyone have a clue as to what is going on?

Any idea how to fix?

Thanks.

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Details:

[root ~]# uname -a
Linux t1.localdomain 3.6.6-1.fc16.x86_64 #1 SMP Mon Nov 5 16:56:43 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

[root ~]# btrfs --version
Btrfs v0.20-rc1-37-g91d9eec

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Quoted 5 lines · Sem

Hi,

After doing a btrfsck --repair on my file system, it now has very strange numbers in df:

Quoted 9 lines

[root ~]# df -h | grep sdc
/dev/sdc 15T -64Z 16E 101% /usr/data

Prior to this it was 81% used.

I can read the files, but i cannot write a file.

Does anyone have a clue as to what is going on?

Can you show here what 'btrfs fi df /usr/data' prints?

And also 'btrfs-debug-tree sdc'.

thanks,
liubo

Quoted 16 lines

Any idea how to fix?

Thanks.

---

Details:

[root ~]# uname -a
Linux t1.localdomain 3.6.6-1.fc16.x86_64 #1 SMP Mon Nov 5 16:56:43 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

[root ~]# btrfs --version
Btrfs v0.20-rc1-37-g91d9eec

Quoted 4 lines

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Quoted 11 lines · Liu Bo <bo.li.liu <at> oracle.com> writes:

Quoted 11 lines

After doing a btrfsck --repair on my file system, it now has very strange numbers in df:

[root ~]# df -h | grep sdc
/dev/sdc 15T -64Z 16E 101% /usr/data

Prior to this it was 81% used.

I can read the files, but i cannot write a file.

Does anyone have a clue as to what is going on?

[root <at> data]# btrfs-debug-tree /dev/sdc

warning, bad space info total_bytes 8589934592 used 17179541504 warning, bad space info total_bytes 12884901888 used 25768099840

warning, bad space info total_bytes 51539607552 used 102990053376 warning, bad space info total_bytes 55834574848 used 111552487424 And thousands more lines.

[root <at> data]# btrfs fi df /usr/data

Data, RAID0: total=13.95TB, used=23.99TB
System, RAID1: total=64.00MB, used=1.63MB
System: total=4.00MB, used=0.00
Metadata, RAID1: total=297.96GB, used=146.77GB