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Sean Dague wrote:
> On Mon, Feb 27, 2006 at 07:13:53PM +0000, Ewan Mellor wrote:
>
>>On Mon, Feb 27, 2006 at 02:06:14PM -0500, Sean Dague 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.
Hi
I had the same problem in 3.0.0 and the workaround I found was to assign
more than one vcpu to the DomU. (The Dom0 has only runs only on one cpu)
I left xen to assign the cpus to each VM so I can not tell if the fact
of running on the same cpu of the Dom0 has any effect.
If it is of any help, the physical machine is a Dual Xeon 3.0 GHz, so
the hypervisor sees 4 cpus.
Bye
>>
>>Please could you use xen-bugtool to attach your logs to that bug #549 -- I'm
>>not sure it's the same root cause.
>
>
> No problem, xen-bugtool now run with files attached.
>
> -Sean
>
>
>
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- --
Tiago Teresa Teodódio
tiago@xxxxxxxxxxxxxx
Administração da Rede das Novas Licenciaturas
Instituto Superior Técnico
web: http://www.rnl.ist.utl.pt
email: rnl@xxxxxxxxxxxxxx
tel: +351 218 41 77 71
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