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

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Message-ID: <CAHbf0-EY9_27Tw3v-pfwXDaTuwpsuuFqrJDKZ8C_cW+-PwXwww@mail.gmail.com>
Date:   Thu, 27 Jan 2022 00:39:49 +0000
From:   Mike Lothian <mike@...eburn.co.uk>
To:     Maxim Levitsky <mlevitsk@...hat.com>
Cc:     dwmw@...zon.co.uk, iommu@...ts.linux-foundation.org,
        joro@...tes.org, linux-kernel@...r.kernel.org,
        suravee.suthikulpanit@....com, tglx@...utronix.de, will@...nel.org
Subject: Re: [PATCH 0/5] iommu/amd: fixes for suspend/resume

On Wed, 26 Jan 2022 at 10:12, Maxim Levitsky <mlevitsk@...hat.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

Cheers

Mike