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Re: [Xen-devel] Time goes backwards in dom0 in xen-unstable
| To: | Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Xen-Devel (E-mail)" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Time goes backwards in dom0 in xen-unstable |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 15 Apr 2009 08:30:37 +0100 |
| Cc: | |
| Delivery-date: | Wed, 15 Apr 2009 00:31:15 -0700 |
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| Thread-topic: | [Xen-devel] Time goes backwards in dom0 in xen-unstable |
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On 14/04/2009 20:36, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote: > I'm seeing some "Time went backwards" errors reported > in dom0 in near-tip (c/s 19515) xen-unstable build. > It's rare and random and not reproducible, but here's > the report that just showed up. There was no load > running at the time. > > I can move to 3.4-rc1 if that would be helpful but I > don't remember seeing any time-related changes recently. > > This was on my dual-core test machine which reports > lots of power management info during Xen boot. If you specify 'cpuidle=off' as a Xen boot parameter, does that make the timer_interrupt scalability problem go away, and this time backwards problem? I was going to enable by default in 3.4 but could go the other way. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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