Re: Intel QAT on A2SDi-8C-HLN4F causes massive data corruption with dm-crypt + xfs

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On Mon, Feb 28, 2022 at 08:39:11PM +0000, Giovanni Cabiddu wrote:
> 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@xxxxxxxxx> 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.

If the existing situation is broken, yes, those patches are fine for
stable releases.

thanks,

greg k-h

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