6.12 broke NAS (btrfs errors etc)

[TimTaylor]

Hello all,

since yesterday suddenly the docker system of unraid is buggin garound. The Dockers are started but only partially accessible. I have already restarted Unraid last night, then it worked briefly and now again the same.

I don't understand what the problem is all of a sudden.

 

Anyone sees the problem here?

 

Quote

Aug  2 13:07:05 NAS kernel: BTRFS: error (device sdc1: state A) in __btrfs_free_extent:3067: errno=-2 No such entry

 

Quote

root@NAS:~# btrfs check /dev/sdc1
Opening filesystem to check...
Checking filesystem on /dev/sdc1
UUID: f13af22b-683e-4211-8b10-19a3913b2398
[1/7] checking root items
[2/7] checking extents
data extent[23743852544, 4096] referencer count mismatch (root 9004 owner 5940 offset 0) wanted 0 have 1
data extent[23743852544, 4096] bytenr mimsmatch, extent item bytenr 23743852544 file item bytenr 0
data extent[23743852544, 4096] referencer count mismatch (root 8521300293055423276 owner 4294936705 offset 0) wanted 1 have 0
backpointer mismatch on [23743852544 4096]
ERROR: errors found in extent allocation tree or chunk allocation
[3/7] checking free space tree
[4/7] checking fs roots
[5/7] checking only csums items (without verifying data)
[6/7] checking root refs
[7/7] checking quota groups skipped (not enabled on this FS)
found 130698866688 bytes used, error(s) found
total csum bytes: 84459360
total tree bytes: 1169408000
total fs tree bytes: 976371712
total extent tree bytes: 79200256
btree space waste bytes: 231943849
file data blocks allocated: 186390126592
 referenced 135480156160

 

Seems the cache drive have problems?

nas-diagnostics-20230802-1321.zip

Edited August 2, 2023 by TimTaylor

[TimTaylor]

Edited: Because NGINX was not the problem

[TimTaylor]

I tried to revert to 6.11.5 but that didnt worked, so im back to 6.12.3. I cant start any docker any more, the cache drive seems to have errors cause of that 6.12 version and is now  in read only mode.

 

I really need help now.

 

here are the actual diagnostic files:

 

nas-diagnostics-20230802-1709.zip

[JorgeB]

Pool is in the middle of a balance and it's crashing because the fs is corrupt, see if you can copy the data as is, if not see here for some recovery options, try mounting read-only and then backup the data, then recreate the pool and restore the data.

[TimTaylor]

Im copying the whole data from the cache at this time with midnight commander, it runs since 2 hours now. It seems to be only sdc1 which is the cache drive.

 

Can i reformat it or make it to a zfs drive (seems btrfs is crap, and the error comes back like i read in another post) and then copy the data back?

Edited August 2, 2023 by TimTaylor

[JorgeB]

6 minutes ago, TimTaylor said:

Can i reformat it or make it to a zfs drive

You can, if issues continue there's possible some hardware problem, like bad RAM.

[TimTaylor]

i dont think its the ram, the nas was working for years without problems. and since 1 year on unraid. So i guess its the update it self.

But i will try to repair ist like this.

[TimTaylor]

i repaired the cache with that btrfs command, so its working again. I will have a look on it.

 

Thank you for the help.