NILFS warning (device sdb1): nilfs_truncate_bmap: failed , to truncate bmap (ino=424, err=-2)

NILFS warning (device sdb1): nilfs_truncate_bmap: failed , to truncate bmap (ino=424, err=-2)

[David Arendt]

Hi,

I had a system freeze this morning. This was the error appearing in 
/var/log/messages shortly before the freeze.

NILFS warning (device sdb1): nilfs_truncate_bmap: failed ,to truncate 
bmap (ino=424, err=-2)

cleanerd has been running for 4 hours.This occured 5 minutes after I 
killed cleanerd. At the moment were this was occuring, I was also 
deleting about //250gbytes of files. So it's no sure if it is cleaner 
related or not.

The kernel was 2.6.28.8 with nilfs 2.0.11

If have done a find / in order to list all the files after a reboot, and 
no further nilfs2 error messages have been logged.

Bye,
David Arendt

Re: NILFS warning (device sdb1): nilfs_truncate_bmap: failed , to truncate bmap (ino=424, err=-2)

[Ryusuke Konishi]

Hi,
On Sat, 21 Mar 2009 12:57:21 +0100, David Arendt wrote:
> Hi,
> 
> I had a system freeze this morning. This was the error appearing in 
> /var/log/messages shortly before the freeze.
> 
> NILFS warning (device sdb1): nilfs_truncate_bmap: failed ,to truncate 
> bmap (ino=424, err=-2)
> 
> cleanerd has been running for 4 hours.This occured 5 minutes after I 
> killed cleanerd. At the moment were this was occuring, I was also 
> deleting about //250gbytes of files. So it's no sure if it is cleaner 
> related or not.
> 
> The kernel was 2.6.28.8 with nilfs 2.0.11
>
> If have done a find / in order to list all the files after a reboot, and 
> no further nilfs2 error messages have been logged.
> 
> Bye,
> David Arendt

The error code indicates that a nilfs delete routine unexpectedly met
a hole block or failed to translate vblocknr to on-disk block address
while it is truncating btree of a huge file.

Maybe GC is involved.
I don't know the warning is relating to the freeze.

This seems to require digging deeply into the function and GC, so I'll
queue it at a bugtrack for now.

Thanks for reporting.

Ryusuke