Re: CS 4.2 KVM CONFIG_VIRTIO_BALLOON=yes

[Nux!]

On 06.02.2014 17:34, motty cruz wrote:

Thanks Nux,
I am using over-provision, so I had to enable that feature in
/boot/config--current-linux kernel.

if I do rmmod virtio-balloon guest machines are able to see all RAM
allocated to them but if I do modprobe virtio-balloon guest machines 
only
see half of the RAM allocated. even if I turned over-provission off, 
guest

machines only see half of RAM allocated to them.


Yeah, over-provisioning in KVM is a bit tricky. In 4.3 we'll have the 
option not to have the VMs memory size messed with and can use KSM for 
memory de-duplication.



--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

Re: CS 4.2 KVM CONFIG_VIRTIO_BALLOON=yes

[motty cruz]

Thanks Nux,
I am using over-provision, so I had to enable that feature in
/boot/config--current-linux kernel.

if I do rmmod virtio-balloon guest machines are able to see all RAM
allocated to them but if I do modprobe virtio-balloon guest machines only
see half of the RAM allocated. even if I turned over-provission off, guest
machines only see half of RAM allocated to them.




On Thu, Feb 6, 2014 at 9:30 AM, Nux!  wrote:

> On 06.02.2014 17:03, motty cruz wrote:
>
>> Hi, excuse me dumb questions, what file do I configure to enable this
>> options
>> CONFIG_VIRTIO_BALLOON=yes
>> Centos 6.5 KVM
>>
>> Thanks,
>>
>
> This is a kernel module required by KVM VMs in certain situations (not for
> ACS AFAIK).
> If it's not listed in `lsmod` you can do a "modprobe virtio_balloon" to
> load it.
>
> --
> Sent from the Delta quadrant using Borg technology!
>
> Nux!
> www.nux.ro
>

Re: CS 4.2 KVM CONFIG_VIRTIO_BALLOON=yes

[Nux!]

On 06.02.2014 17:03, motty cruz wrote:

Hi, excuse me dumb questions, what file do I configure to enable this
options
CONFIG_VIRTIO_BALLOON=yes
Centos 6.5 KVM

Thanks,


This is a kernel module required by KVM VMs in certain situations (not 
for ACS AFAIK).
If it's not listed in `lsmod` you can do a "modprobe virtio_balloon" to 
load it.


--
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro

CS 4.2 KVM CONFIG_VIRTIO_BALLOON=yes

[motty cruz]

Hi, excuse me dumb questions, what file do I configure to enable this
options
CONFIG_VIRTIO_BALLOON=yes
Centos 6.5 KVM

Thanks,