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xen-devel
[Xen-devel] Re: [PATCH] x86/pvclock-xen: zero last_value on resume
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To: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH] x86/pvclock-xen: zero last_value on resume |
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From: |
Ingo Molnar <mingo@xxxxxxx> |
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Date: |
Fri, 26 Nov 2010 11:40:47 +0100 |
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Cc: |
"Xen-devel@xxxxxxxxxxxxxxxxxxx" <Xen-devel@xxxxxxxxxxxxxxxxxxx>, kvm-devel <kvm@xxxxxxxxxxxxxxx>, Glauber Costa <glommer@xxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Linux Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Olivier Hanesse <olivier.hanesse@xxxxxxxxx>, Avi Kivity <avi@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Eelco Dolstra <e.dolstra@xxxxxxxxxx> |
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Fri, 26 Nov 2010 02:42:13 -0800 |
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Mutt/1.5.20 (2009-08-17) |
* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:
> On 10/26/2010 09:59 AM, Jeremy Fitzhardinge wrote:
> >
> > If the guest domain has been suspend/resumed or migrated, then the
> > system clock backing the pvclock clocksource may revert to a smaller
> > value (ie, can be non-monotonic across the migration/save-restore).
> > Make sure we zero last_value in that case so that the domain
> > continues to see clock updates.
>
> Ping? Looks like this fell through the gaps.
Does not apply cleanly here - mind resending the latest version?
Thanks,
Ingo
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