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Re: [Xen-devel] xenpm: opensolaris HVM domU stops getting timer interrup
| To: | Frank Van Der Linden <Frank.Vanderlinden@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] xenpm: opensolaris HVM domU stops getting timer interrupts when C3 used |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 05 Jan 2010 21:02:05 +0000 |
| Cc: | |
| Delivery-date: | Tue, 05 Jan 2010 13:02:39 -0800 |
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| Thread-topic: | [Xen-devel] xenpm: opensolaris HVM domU stops getting timer interrupts when C3 used |
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On 05/01/2010 20:55, "Frank Van Der Linden" <Frank.Vanderlinden@xxxxxxx> wrote: > I tried other HVM domains, such as Windows, and they don't seem to have > the problem. But, they might be more "tickless" than OpenSolaris is. > > I haven't looked at the PM code much yet, and I haven't tried -unstable, > but there don't seem to be any changes in -unstable that would fix this. > > Is this a known problem? Any hints for diagnosing the problem? Perhaps CPUs are not being woken from C3 in a timely manner? Could check how late timers are fired in timer_softirq_action(), perhaps printing largest missed deadline every few seconds or soemthing like that. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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