Re: Apparent serious progressive ext4 data corruption bug in 3.6.3(and other stable branches?)

[Theodore Ts'o]

On Thu, Oct 25, 2012 at 08:11:12PM -0400, Ric Wheeler wrote:
> 
> Sending this just to you two to avoid embarrassing myself if I
> misread the thread, but....
> 
> Can we reproduce this with any other hardware RAID card? Or with MD?

There was another user who reported very similar corruption using
3.6.2 using USB thumb drive.  I can't be certain that it's the same
bug that's being triggered, but the symptoms were identical.

> If we cannot reproduce this in other machines, why assume this is an
> ext4 issue and not a hardware firmware bug?
> 
> As an ex-storage guy, this really smells like the hardware raid card
> might be misleading us....

It's possible.  The main reason why I took this so seriously was
because of the 2nd, apparently confirming report, with very different
hardware.  That was what was so scary to me, at least at first.

	   	    	     	      - Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/