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RE: [Xen-devel] Re: xend issues

To: "Sharma, Arun" <arun.sharma@xxxxxxxxx>, "xen-devel" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] Re: xend issues
From: "Neugebauer, Rolf" <rolf.neugebauer@xxxxxxxxx>
Date: Wed, 15 Jun 2005 23:25:03 +0100
Cc: "Neugebauer, Rolf" <rolf.neugebauer@xxxxxxxxx>
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Thread-topic: [Xen-devel] Re: xend issues

> -----Original Message-----
> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-devel-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Arun Sharma
> Sent: 15 June 2005 21:47
> To: xen-devel
> Subject: [Xen-devel] Re: xend issues
> Arun Sharma wrote:
> >
> > Lately, I'm having trouble destroying VMX domains (probably due to
> > reference counts) - although all memory associated with the domain
> > freed up.
> >
> > Subsequently, if I create a new domain of the same name, the domain
> > is wrong.
> >
> > # xm list
> > Name              Id  Mem(MB)  CPU VCPU(s)  State  Time(s)  Console
> > Domain-0           0      245    0      1   r----     50.8
> > ExampleVMXDomain   1        0    0      1   -----     22.5     9601
> > ExampleVMXDomain   1        0    0      1   -----     22.5     9601
> >
> > Even the uuid of the two domains is the same in the long listing
> BTW, this issue doesn't happen if I use a different name for the new
> domain (xm create name=foo). Normally xend doesn't let me create two
> domains with the same name. But in this case, it does let me do it and
> then gets confused about domain ids and uuids.

I haven't had the issue with two vms with the same name and same ID,
but, my experience is that the VMX domains linger around till you
forcible (-9) kill the device model.

Clearly this is something which needs to be addressed in xend as it
should have the info avail to destroy the device model when the vmx
domain goes away.

On a related note, currently the VNC viewer for the VMX domain is
started by xend but in my opinion should be started by 'xm' (as with
native xen VMs) as you are more likely to have your DISPLAY/XAUTH set
when executing xm rather than when xend is started.


>       -Arun
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