[dm-devel] Intel QAT on A2SDi-8C-HLN4F causes massive data corruption with dm-crypt + xfs

Giovanni Cabiddu giovanni.cabiddu at intel.com
Mon Feb 28 20:39:11 UTC 2022


On Mon, Feb 28, 2022 at 11:25:49AM -0800, Linus Torvalds wrote:
> On Mon, Feb 28, 2022 at 12:18 AM Kyle Sanderson <kyle.leet at gmail.com> wrote:
> >
> > Makes sense - this kernel driver has been destroying users for many
> > years. I'm disappointed that this critical bricking failure isn't
> > searchable for others.
> 
> It does sound like we should just disable that driver entirely until
> it is fixed.
> 
> Or at least the configuration that can cause problems, if there is
> some particular sub-case.
The dm-crypt + QAT use-case is already disabled since kernel 5.10 due to
a different issue.
Is it an option to port those patches to stable till I provide a fix for
the driver? I drafted already few alternatives for the fix and I am aiming
for a final set by end of week.

Thanks,

-- 
Giovanni




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