From: David Vrabel <david.vrabel@citrix.com>
To: John Stultz <john.stultz@linaro.org>
Cc: Jan Beulich <JBeulich@suse.com>,
Thomas Gleixner <tglx@linutronix.de>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [Xen-devel] [PATCH 2/3] timekeeping: sync persistent clock and RTC on system time step changes
Date: Tue, 28 May 2013 19:26:14 +0100 [thread overview]
Message-ID: <51A4F6C6.8080808@citrix.com> (raw)
In-Reply-To: <5193CFA2.8010008@linaro.org>
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
next prev parent reply other threads:[~2013-05-28 18:26 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-13 17:56 [PATCH 0/3] x86,time,xen: maintain an accurate persistent clock in more cases David Vrabel
2013-05-13 17:56 ` [PATCH 1/3] x86: increase precision of x86_platform.get/set_wallclock() David Vrabel
2013-05-14 0:57 ` John Stultz
2013-05-14 17:52 ` John Stultz
2013-05-29 0:18 ` John Stultz
2013-05-29 12:16 ` David Vrabel
2013-05-13 17:56 ` [PATCH 2/3] timekeeping: sync persistent clock and RTC on system time step changes David Vrabel
2013-05-14 0:40 ` John Stultz
2013-05-14 9:47 ` David Vrabel
2013-05-14 17:15 ` John Stultz
2013-05-15 8:16 ` [Xen-devel] " Jan Beulich
2013-05-15 18:10 ` John Stultz
2013-05-28 18:26 ` David Vrabel [this message]
2013-05-28 18:31 ` Konrad Rzeszutek Wilk
2013-05-28 19:09 ` John Stultz
2013-05-28 19:48 ` Konrad Rzeszutek Wilk
2013-05-28 20:03 ` John Stultz
2013-05-28 20:11 ` John Stultz
2013-05-28 20:25 ` Konrad Rzeszutek Wilk
2013-05-28 20:30 ` John Stultz
2013-05-28 19:06 ` John Stultz
2013-05-13 17:56 ` [PATCH 3/3] x86/xen: sync the CMOS RTC as well as the Xen wallclock David Vrabel
2013-05-14 0:52 ` John Stultz
2013-05-14 7:57 ` [Xen-devel] " Jan Beulich
2013-05-14 15:59 ` John Stultz
2013-05-14 16:14 ` Jan Beulich
2013-05-14 16:17 ` John Stultz
2013-05-14 16:24 ` Konrad Rzeszutek Wilk
2013-05-14 16:28 ` John Stultz
2013-05-14 9:55 ` David Vrabel
2013-05-14 17:24 ` John Stultz
2013-05-14 18:00 ` David Vrabel
2013-05-14 18:03 ` John Stultz
2013-05-15 8:19 ` [Xen-devel] " Jan Beulich
2013-05-15 18:13 ` John Stultz
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