Re: [PATCH 0/5] iommu/amd: fixes for suspend/resume

Maxim Levitsky
2022-01-27T10:23:11Z

On Thu, 2022-01-27 at 00:39 +0000, Mike Lothian wrote:
> On Wed, 26 Jan 2022 at 10:12, Maxim Levitsky <mlevitsk@redhat.com> wrote:
> > Great, your system does seem to support GA log
> > (but a patch to check if, other that assume blindly that it is supported is
> > something that should be done).
> >
> > So could you bump the LOOP_TIMEOUT like by 10x or so and see if the problem goes away?
> >
> > (that code should be rewritten to time based wait and not just blindly loop like that,
> > I also can prepare a patch for that as well).
> >
> > Best regards,
> > Maxim Levitsky
> >
>
> Hi
>
> I've done quite a few restarts with the LOOP_TIMEOUT increased and
> I've not seen the issue since

Great, so the problem is solved I guess.
Thanks for the help!

I'll send a patch for this in few days to replace this and other similiar timeouts
with a proper udelay() wait.

Best regards,
Maxim Levitsky

>
> Cheers
>
> Mike
>