linux-kernel - Re: system time goes weird in kvm guest after host suspend/resume

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Message-ID: <CAJfpegtH7C0cu2iPv8gLq5_+=U3-XWZ3XRsP64h6Gbx-qqyZTQ@mail.gmail.com>
Date:   Fri, 29 May 2020 14:33:55 +0200
From:   Miklos Szeredi <miklos@...redi.hu>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Juergen Gross <jgross@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: system time goes weird in kvm guest after host suspend/resume

On Fri, May 29, 2020 at 2:31 PM Miklos Szeredi <miklos@...redi.hu> wrote:

> > Can you please describe the setup of this test?
> >
> >  - Host kernel version

5.5.16-100.fc30.x86_64

> >  - Guest kernel version

75caf310d16c ("Merge branch 'akpm' (patches from Andrew)")

> >  - Is the revert done on the host or guest or both?

Guest.

> >  - Test flow is:
> >
> >    Boot host, start guest, suspend host, resume host, guest is screwed
> >
> >    correct?
>
> Yep.
>
> Thanks,
> Miklos