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RE: [Xen-users] memory problem

To: "Ralf Dreibrodt" <rd@xxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] memory problem
From: "Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date: Mon, 20 Jun 2005 15:09:43 +0100
Cc: ian.pratt@xxxxxxxxxxxx
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Thread-topic: [Xen-users] memory problem
> There are 20 servers with 80 MB + 1x200 MB, about 1800 MB, 
> the server has 2000 MB.
> 
> After some days/weeks and some xm shutdown/destroy/creates 
> later "xm list" shows:
> Name              Id  Mem(MB)  CPU  State  Time(s)  Console
> Domain-0       0      195    0  r----   9822.9        
> Domain-4       4       80    0  --p--      0.0        
> server1       70       79    0  -b---     62.9    9670
> server2       11       79    0  -b---   3684.5    9611
> server3       13       79    0  -b---   7434.6    9613
> 
> There are suddenly names like "Domain-4", "Domain-5" and so on.

Looks like you have some zombie domains that have got into a bad state.
This can be due to a tools bug, or to a real hypervisor bug, though we
haven't seen any of the latter in a while. If you can find a way to
reproduce this reliably it would help track it down. The other approach
is to use a DEBUG=y build of Xen, and then hit 'o' on the serial console
when its in this state.

Ian

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