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RE: [Xen-users] Zombie domU

To: "Gabor HALASZ" <halasz.g@xxxxxxxxxxx>, "xen user list" <Xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] Zombie domU
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Fri, 16 Dec 2005 05:17:33 -0000
Cc: ian.pratt@xxxxxxxxxxxx
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Thread-topic: [Xen-users] Zombie domU
 
> k8n-ultra9:/etc/xen# xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0      245     1 r-----   444.1
> Zombie-Apache                      4      256     1 -----d   182.0
> k8n-ultra9:/etc/xen# xm destroy 4
> k8n-ultra9:/etc/xen# xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0      245     1 r-----   444.3
> Zombie-Apache                      4      256     1 -----d   182.0
> 
> What can I do?

What version of Xen is this? Do you know what you did to kill the
domain?

In general, zombie domains aren't too much to worry about from a user
point of view. They typically don't really consume more than a few KB of
memory (despite being listed as holding their full size on 'xm list'). 

However, they're an indication that something has gone wrong (usually in
the tools) and Xen isn't prepared to destory them completely as it
thinks some resources are still in use. It's good to report such issues
wo we can fix them.

Thanks,
Ian

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