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

On 05/28/2013 11:31 AM, Konrad Rzeszutek Wilk wrote:
On Tue, May 28, 2013 at 07:26:14PM +0100, David Vrabel wrote:
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.
Looks good.

John if you are OK I am thinking to push this to Linus shortly as it is
fixing a bug.

I'm really not sure I'd call this a bug. That seems like an over-reaction to a misconfigured system.

Or if there is a bug, I'm not sure its been clearly explained.


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