Bug#785672: Critical ext4 data corruption bug (maybe is dm-crypt related ?)
On Wed, 20 May 2015 23:12:10 +0200 Carlos Alberto Lopez Perez <clopez@igalia.com> wrote:
> Are you using dm-crypt?
>
> Then this may be related to another bug that appeared on 4.0. See:
>
> http://thread.gmane.org/gmane.linux.kernel/1942014
I'm not using dm-crypt on that system, though that's disturbing news for
the systems I have that *are* running dm-crypt.
However, Henrique de Moraes Holschuh identified a highly likely culprit
for the corruption I encountered:
https://bugzilla.kernel.org/show_bug.cgi?id=98501 , which affects mdraid
on RAID0 with discard enabled.
So, in addition to the patch mentioned when opening this bug, could the
Debian kernel also include this patch, please? (Meanwhile, I'll work
around it by disabling discard.)
- Josh Triplett
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