Re: [Xen-devel] [PATCH 2/3] timekeeping: sync persistent clock and RTC on system time step changes

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 15/05/13 19:10, John Stultz wrote:
> 
> Ok, so really, as soon as the Dom0 time is set by NTP, all guests will 
> see the right time? That makes more sense, and means the window for 
> these sorts of issues is reasonably quite small.

It's a small window but it's occurring in our automated test system.

> David: So I'm less inclined to merge this individual change, but if you 
> still feel strongly about it, let me know and we can circle around on it 
> after you've addressed the specific issues I pointed out earlier.

This patch was the actual bug fix but I've reworked it to use the
pvclock_gtod notifier chain as this seemed to be what KVM hosts were
using to maintain a clock for guests.  Please review the new series, thanks.

David

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