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RE: [Xen-devel] 100 Hz idle timer on domU?

  • To: "Andrew Theurer" <habanero@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
  • Date: Mon, 23 May 2005 20:51:40 +0100
  • Delivery-date: Mon, 23 May 2005 19:51:02 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcVfyruY4xkNGLN6SfGcHmPEVdPvvgABYGyQ
  • Thread-topic: [Xen-devel] 100 Hz idle timer on domU?

> I just built bk-1.1514 (which oddly enough that version I 
> can't find a reference to on bk-bits anymore, was that 
> changeset backed out?) 

It's probably bk renumbering things -- you really need to refer to
changesets by MD5KEY.

> and I am noticing that domU's cpus are 
> getting timer ticks at 100Hz even when idle.  I know I have 
> observed a "no tick" behavior before.  Was this change intentional?

I bet I know what this is. Please can you try the following to see if it
goes away:

'bk cset -x428f2c2a_3sOeZVGhQutbJc15aCU9g'

ChangeSet@xxxxxxxxxxxxxx, 2005-05-21 13:40:10+01:00,
  Fix e1000 hang during reboot bug.  Kudos to Steven Hand for analyzing.
    Fix bug in code which sets our one-shot timer when we decide to
block during
    the idle loop.
  Signed-off-by: Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>


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