[Lustre-discuss] Mounting OST causes kernel panic

Mohr Jr, Richard Frank (Rick Mohr) rmohr at utk.edu
Mon Jan 12 14:25:54 PST 2015


Brian,

Is it possible that there is some internal Lustre info that is inconsistent (and causes Lustre heartburn) that might be cleared up with a writeconf?  Not knowing much about the details of the kernel panic, I'm just kind of grasping at straws here...

-- 
Rick Mohr
Senior HPC System Administrator
National Institute for Computational Sciences
http://www.nics.tennessee.edu


On Jan 12, 2015, at 5:11 PM, "Andrus, Brian Contractor" <bdandrus at nps.edu>
 wrote:

> All,
>  
> Ok, I have (mostly) recovered from all of my lustre servers kernel panicking when I tried to do an lfsck_start.
> I have one OST which, whenever I mount it, causes a kernel panic on whatever server I mount it to.
>  
> After I reboot, it shows some quota errors when I run e2fsck and then cleans them up.
> I can mount it as type ldiskfs and everything seems happy there.
> As soon as it is mounted as type lustre, boom. Kernel panic.
>  
> Not sure if there is a preferred process to try and recover the data/OST. Any suggestions/recommendations would be appreciated.
>  
>  
> Brian Andrus
> ITACS/Research Computing
> Naval Postgraduate School
> Monterey, California
> voice: 831-656-6238
>  
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