Re: libata timeout, MCE and kernel panic

Alan Cox
2008-07-24T00:07:08Z

> recovery was required. It seems the journal recovery combined with the
> md device reconstruction was enough to cause an ata command
> timeout. After that I saw several MCEs and the kernel paniced.

An MCE is amachine check, and indicates the hardware detected a problem.
Given the sequence of heavy I/O, followed by a timeout and the processors
detecting inconsistencies - is your PSU sufficient ?