[Lustre-discuss] fsck.ext4 for device ... exited with signal 11.

[Andreas Dilger]

On 2010-12-01, at 15:16, Craig Prescott wrote:
> We are trying to fsck an OST that was not unmounted
> cleanly.  But fsck is dying with this error after making some corrections:
> 
> [root at XXXXXX tmp]# fsck -f -y /dev/arc1-lv2/OST0003
> ...
> High 16 bits of extent/index block set
> CLEARED.
> Inode 306602015 has an invalid extent node (blk 512, lblk 641536)
> Clear? yes
> 
> Warning... fsck.ext4 for device /dev/arc1-lv2/OST0003 exited with signal 11.
> 
> It is repeatable.
> 
> So we are stuck.  We need to fsck our OST, but fsck is dying.  Can 
> anyone give us some advice on how to proceed?

Hmm, IIRC signal 11 normally means memory errors, though it could be a software bug in e2fsck.

Do you have enough RAM to run e2fsck on this node?  Have you tried running it under gdb to see if it can catch the sig11 and print a stack trace?

Cheers, Andreas
--
Andreas Dilger
Lustre Technical Lead
Oracle Corporation Canada Inc.