Re: [RFC] AMD VM crashing on deferred memory error injection

From: Borislav Petkov

Date: Mon Feb 09 2026 - 12:56:45 EST


On Mon, Feb 09, 2026 at 05:38:58PM +0000, Luck, Tony wrote:
> > This enablement is not meant for VM use. Why do we care about injecting hw
> > errors in a guest?
>
> The guest may be able to just kill a process and keep running.

I have heard about injecting errors into qemu/kvm perhaps a decade ago and
nothing ever since. Either it has been working perfectly since then or no one
cares until now.

So the guest "may" be able to do a lot of things - question is, do we support
it and how do we test for it in the future so that it doesn't break.

Thx.

--
Regards/Gruss,
Boris.

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