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List:       xen-users
Subject:    RE: [Xen-users] Error in Xen host and VM crash
From:       "Ashit Kumar" <Ashit_Kumar () symantec ! com>
Date:       2007-03-31 10:59:31
Message-ID: BA9C9E8D6DE58F43B85F33C5FC1E1F260176F5A5 () PUNAXCHEMBPIN01 ! enterprise ! veritas ! com
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Thanks ...was space problem..solved it
~~Ashit 

-----Original Message-----
From: Petersson, Mats [mailto:Mats.Petersson@amd.com] 
Sent: Friday, March 30, 2007 8:50 PM
To: Ashit Kumar; xen-users@lists.xensource.com
Subject: RE: [Xen-users] Error in Xen host and VM crash

 

> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Ashit 
> Kumar
> Sent: 30 March 2007 16:10
> To: xen-users@lists.xensource.com
> Subject: [Xen-users] Error in Xen host and VM crash
> 
> Hi,
> I tried to install xenVM (debian sarge image) through the 
> administrative console. It terminated automatically.
> After that the 'xm list' command shows the following error: 
>         Error: (2, 'No such file or directory')

Looks like your "xend" has crashed, I think - but it could be other
things too. 

>         Usage: xm list [options] [Domain, ...]
> 
>         List information about all/some domains. 
>           -l, --long                     Output all VM details in SXP 
>           --label                        Include security labels 
> Though the 'sm info' command shows the proper output of all the SR and

> the VDI ID. But the 'xe host-vm-list' doesn't show any output.
> 
>   
> Also opening the grub.conf shows the following error: 
>         Write error in swap file: 

Is it possible that your Dom0 doesn't have enough memory? How large is
your swap-file and how much is used?

How much memory does your machine have, and how much are you giving the
DomU you try to start? 

Are you using a static Dom0 memory (dom0_mem= on the xen.gz boot line?)
or dynamic via "balooning"?

In my experience, it's a better idea to set up a static amount of Dom0
memory, because there is less problems with DomU "squeezing all
available" from Dom0 [One of the problems when reducing a domains memory
is that the size of static areas allocated at the start-of-day still
remain the same size. So for example, a 1GB guest may have a bunch of
statically allocated stuff that is 4 times bigger than a 256MB guest,
simply because they are allocated as a "proportion of total memory"]. 

--
Mats
> Rebooting the Xen host even doesn't help. 
> Any idea what might be the reason and some troubleshooting steps. 
> 
> Thanks and regards
> Ashit
> 
> 



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