xen-devel.lists.xenproject.org archive mirror
 help / color / mirror / Atom feed
From: Tim Deegan <tim@xen.org>
To: Nathan March <nathan@gt.net>
Cc: xen-devel@lists.xensource.com
Subject: Re: Clock jumping during live migrations
Date: Thu, 27 Oct 2011 12:07:03 +0100	[thread overview]
Message-ID: <20111027110703.GG59656@ocelot.phlegethon.org> (raw)
In-Reply-To: <4EA88A4A.1040805@gt.net>

Hi, 

At 15:31 -0700 on 26 Oct (1319643098), Nathan March wrote:
> Having an issue where the clock on a VM will jump ahead by the timezone 
> offset but only certain directions between certain machines.
> 
> For example, if I run a "sleep 1; date" loop on the VM and migrate it 
> from xen4 to xen7:
> 
> Wed Oct 26 21:14:46 PDT 2011
> Thu Oct 27 04:19:03 PDT 2011

...

> xen4 ~ # uname -a
> Linux xen4 3.0.3 #3 SMP Thu Sep 1 23:39:43 PDT 2011 x86_64 Intel(R) 

I think maybe you need these patches on your dom0 kernel:

http://lists.xensource.com/archives/html/xen-devel/2011-10/msg01762.html

Tim.

  reply	other threads:[~2011-10-27 11:07 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-26 22:31 Clock jumping during live migrations Nathan March
2011-10-27 11:07 ` Tim Deegan [this message]
2012-06-18 21:22   ` Nathan March

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=20111027110703.GG59656@ocelot.phlegethon.org \
    --to=tim@xen.org \
    --cc=nathan@gt.net \
    --cc=xen-devel@lists.xensource.com \
    /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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).