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[Xen-devel] Re: DomU not rebooting in 3.0.1
- To: "Ewan Mellor" <ewan@xxxxxxxxxxxxx>, "Brian Hays" <brian.hays@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
- From: "Brian Hays" <brian.hays@xxxxxxxxx>
- Date: Mon, 27 Feb 2006 14:10:24 -0500
- Delivery-date: Mon, 27 Feb 2006 19:10:50 +0000
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My domU is on the same physical CPU as dom0 but still doesn't come back from reboots.
Brian
On 2/27/06, Sean Dague <
japh@xxxxxxxxxx> wrote:On Mon, Feb 27, 2006 at 03:33:17PM +0000, Ewan Mellor wrote:
> On Sat, Feb 25, 2006 at 11:31:57AM -0500, Brian Hays wrote:
>
> > In 3.0.1 it appears that reboots from within a domU result in the domU
> > shutting down but not coming back up.
> >
> > /var/log/xen-hotplug.log reports something similar to "xenstore-list:
> > could not read path backend/vbd/40"
> >
> > Attempts to manually start the domU up again via "xm create" fail until
> > first running "xenstore-rm backend/vbd/40"
> >
> > This has happened on several occasions within different domU's on
> > different machines. Is there a known workaround... Is this already fixed
> > in unstable?
>
> This is being tracked as bug #514. I think I have a fix, which should be in
> today, all being well.
Ewan, I didn't notice 514, but I submitted a related bug
http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=549. It appears that
the big deciding factor on whether or not I see the race is is the DomU that
is rebooting running on a fully independant CPU from Dom0. If it is, it
breaks every time, if it isn't (i.e. it is on the *same* phys CPU as Dom0)
it works every time.
-Sean
--
Sean Dague
IBM Linux Technology Center email:
japh@xxxxxxxxxx
Open Hypervisor Team alt: sldague@xxxxxxxxxx
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