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

From: Thomas Gleixner
Date: Wed Jun 03 2020 - 11:42:04 EST


Miklos Szeredi <miklos@xxxxxxxxxx> writes:
> On Fri, May 29, 2020 at 2:31 PM Miklos Szeredi <miklos@xxxxxxxxxx> 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.

Of course this does not reproduce here. What kind of host is this
running on? Can you provide a full demsg of the host please from boot to
post resume?

Thanks,

tglx