Re: kvm: odd time values since "kvmclock: set scheduler clock stable"

From: Sasha Levin
Date: Wed May 13 2015 - 11:38:27 EST


On 05/13/2015 08:58 AM, Luiz Capitulino wrote:
> On Tue, 12 May 2015 19:17:24 -0400
> Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
>
>> > Hi all,
>> >
>> > I'm seeing odd jump in time values during boot of a KVM guest:
>> >
>> > [...]
>> > [ 0.000000] tsc: Detected 2260.998 MHz processor
>> > [3376355.247558] Calibrating delay loop (skipped) preset value..
>> > [...]
>> >
>> > I've bisected it to:
> Thanks for bisecting. You just boot a guest to reproduce this? How
> many vCPUs does the guest have?
>
> Paolo, I think it's better to drop this patch for now.
>

Yup, just booting a 32 VCPU guest - it happens very early during boot.


Thanks,
Sasha
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