Am 25.04.2013 18:08, schrieb Pandu Poluan:

>>
>>
>> Are there any error/warnings in dmes or the logs?
>>
>> Maybe the disk is toast? Can you create other file systems?
>>
> 
> Can't get to see dmesg, the system locked up tight.
> 
> I can create an ext4 fs on a different partition, and since the 'disk' is
> actually a RAID array, if the array is going south, I should see the same
> problem with ext4, right?
> 

That was my guess, that if it is indeed a hardware error, you would get
the same error when trying to create a different fs on the same partition.

A total system lock is strange. Do you have to physically reset the
machine, or does SysRq Key still work?

I'm still guessing that it is a hardware related problem.