From: Orion Poplawski <orion@cora.nwra.com>
To: Gleb Natapov <gleb@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: Clock jumps
Date: Wed, 26 May 2010 11:10:46 -0600 [thread overview]
Message-ID: <4BFD5616.6070302@cora.nwra.com> (raw)
In-Reply-To: <20100525062100.GP22163@redhat.com>
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
next prev parent reply other threads:[~2010-05-26 17:21 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 16:06 Clock jumps Orion Poplawski
2010-05-25 6:21 ` Gleb Natapov
2010-05-26 17:10 ` Orion Poplawski [this message]
2010-05-26 17:31 ` Alexander Graf
2010-05-26 17:50 ` Orion Poplawski
2010-05-26 22:55 ` Orion Poplawski
2010-05-27 18:32 ` Bernhard Schmidt
2010-05-27 18:32 ` Bernhard Schmidt
2010-05-27 19:08 ` john stultz
2010-05-27 21:48 ` Bernhard Schmidt
2010-05-28 0:00 ` john stultz
2010-05-28 0:33 ` Bernhard Schmidt
2010-05-28 0:46 ` john stultz
2010-05-28 0:49 ` Bernhard Schmidt
2010-05-27 21:53 ` Zachary Amsden
2010-05-27 22:12 ` Bernhard Schmidt
2010-05-27 22:20 ` Zachary Amsden
2010-05-27 22:22 ` Zachary Amsden
2010-06-02 22:54 ` Orion Poplawski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4BFD5616.6070302@cora.nwra.com \
--to=orion@cora.nwra.com \
--cc=gleb@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.