Messages in this thread |  | | | Date | Wed, 26 May 2010 11:10:46 -0600 | | From | Orion Poplawski <> | | Subject | Re: Clock jumps |
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On 05/25/2010 12:21 AM, Gleb Natapov wrote: > Adding kvm to CC. > > On Mon, May 24, 2010 at 04:06:32PM +0000, Orion Poplawski wrote: >> I have a KVM virtual machine running 2.6.33.4-95.fc13.x86_64 on a CentOS 5.5 >> host whose clock jumps about 8-12 hours a couple times a day. I have no idea >> what is causing it. Fedora 12 and Centos 5.5 KVM machines run fine on the same >> host. Is there any debugging I can enable to see what is jumping the clock? >> >> kvm-clock: cpu 0, msr 0:1ba4741, boot clock >> kvm-clock: cpu 0, msr 0:1e15741, primary cpu clock >> Switching to clocksource kvm-clock >> rtc_cmos 00:01: setting system clock to 2010-05-20 16:59:48 UTC (1274374788)
Thanks, though I don't think it made it there. I'm also not sure it's completely limited to KVM, though that is the only running system I am currently seeing the problem on. I also see clock jumps during anaconda installs on physical hardware and apparently they have been present since at least F11. Might be unrelated though.
I'm really at a loss of how to debug this though.
-- Orion Poplawski Technical Manager 303-415-9701 x222 NWRA/CoRA Division FAX: 303-415-9702 3380 Mitchell Lane orion@cora.nwra.com Boulder, CO 80301 http://www.cora.nwra.com
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