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Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time wentbackwards)
| To: | Jan Beulich <jbeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time wentbackwards) |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 11 Dec 2008 11:03:04 +0000 |
| Cc: | Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 11 Dec 2008 03:03:30 -0800 |
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| Thread-topic: | [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time wentbackwards) |
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On 11/12/2008 10:31, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: >> That might be considered skirting around the problem. Are users still seeing >> this with xen 3.3 and xen unstable? > > Unfortunately yes, but rather seldom these days. We just got a fresh > report about a larger IBM system suffering from it - while the initial report > they sent had hundreds of milliseconds in them, the most up-to-date > one we have shows that it's just a few milliseconds above the -10ms > boundary. So far I haven't been able to figure what causes this. Perhaps we should expand the default acceptable jitter a bit? Still, I'd hoped that 10ms would be plenty! -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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