Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time wentba

>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 11.12.08 10:22 >>>
>On 11/12/2008 08:02, "Atsushi SAKAI" <sakaia@xxxxxxxxxxxxxx> wrote:
>
>> 
>> This patch intends to remove warnings for Time went backwards
>> (negative delta) like follows.
>> ========from Xen BZ 195
>> Timer ISR/0: Time went backwards: delta=-10048465 cpu_delta=9951535
>> shadow=706605145 0: 71640046095
>> ========
>
>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.

Jan

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread]

Current Thread

[Next in Thread>

Previous by Date:

RE: [Xen-devel][PATCH] Change cpufreq_driver->get so that it can get other cpu's real physical freq, Liu, Jinsong

Next by Date:

Re: [Xen-devel] opengl=1?, Stefano Stabellini

Previous by Thread:

Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time went backwards), Keir Fraser

Next by Thread:

Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (timewentbackwards), Atsushi SAKAI

Indexes:

[Date] [Thread] [Top] [All Lists]

WARNING - OLD ARCHIVES

xen-devel

Re: [Xen-devel] [PATCH][RFC] remove PV/x86 warnings (time wentbackwards)