Re: [Xen-users] Error: The privileged domain did not balloon! after reboot of Dom0, it just works

[Dominik Klein <dk@xxxxxxxxxxxxxxxx>]

Sebastian Reitenbach wrote:
> Hi,
>
> I try to setup a linux ha based cluster, managing virtual Xen domU 
> resources. When the cluster is up for e.g. a day or two, and then I want to 
> move the Xen domU's from one host to another, I get the following errors in 
> the logfile:
> lrmd[9971]: 2007/11/12_11:20:53 info: RA output: (NFS_SW:start:stderr) 
> Error: The privileged domain did not balloon!
> This also happens when I then try to start the domU instance via 
> xm create
> When I then reboot the dom0, then xm create works fine again without 
> problems. So this behaviour is useless, when it comes to a fail-over in the 
> cluster after a week or so. When both cluster nodes started up, the 
> migration of the resources from one host to another work well. 
>
> Is there a way to prevent this failure, sth. I can do?
Try limiting dom0s memory so it does not have to balloon. This is done 
in your boot manager:
/boot/grub/menu.lst
...
title XEN3.1.0
root (hd0,0)
kernel /boot/xen-3.1.0.gz dom0_mem=256M dom0_vcpus_pin
                          ^^^^^^^^^^^^^
module /boot/vmlinuz-2.6.18-xen root=/dev/sda1
module /boot/initrd-2.6.18-xen
...

Regards
Dominik

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