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Re: [Xen-users] Debugging domain crashes

To: Bart Braem <bart.braem@xxxxxxxxx>
Subject: Re: [Xen-users] Debugging domain crashes
From: Steven Hand <Steven.Hand@xxxxxxxxxxxx>
Date: Mon, 19 Dec 2005 07:55:38 +0000
Cc: Steven.Hand@xxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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In-reply-to: Message from Bart Braem <bart.braem@xxxxxxxxx> of "Mon, 19 Dec 2005 08:44:36 +0100." <do5od4$lj4$1@xxxxxxxxxxxxx>
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>I have a domain that dies upon creation. The xend.log mentions
>"XenDomain>reap> domain died". But how does one debug that error? I don't
>see anything more, the other log output is startup or shutdown logging...

Do you see any console output? (i.e. are you booting with 
"xm create <configfile> -c")? 

If not, and assuming you're using xen 3.0, you can add the following line 
to your config file: 

on_crash = 'preserve' 

This will keep the domain around after it's crashed. Depending on how 
far it got you may get some more info from "xenctx" (a debugging tool 
in the tree) or "xenbugtool" (an automated bug reporting tool). 

You can also take a look at /var/log/messages (or wherever your syslog goes) 
and /var/log/xend-debug.log within domain0 for more information. 



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