| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
Re: [Xen-devel] out-of-memory problem when restoring ballooned domains
Can you show us the output of xm list after the restore failure? It'd be
interesting to see how much memory Xen thinks the domains are occupying.
Cheers,
Mark
On Thursday 10 March 2005 18:42, Lars Rasmusson wrote:
> Hi,
>
> I have a problem with the balloon functionality.
>
> I have a 2G memory machine (with 2 CPUs).
>
> I want to create three (or more) user domains,
> each configured to have 2G (or 1800MB) of RAM,
> but ballooned down to 128 MB.
>
> The reason is that I want to be able to change the
> size of the balloons during run time, and I want
> each of the domains to be able to potentially get
> all (or almost all) of the memory.
>
> I first create the domains t1, t2, and t3:
>
> xm create t1 memory=1800
> xm balloon t1 128
> # wait until the balloon is inflated
> xm save t1 t1.saved
>
> and repeat for t2 and t3. Notice that I can
> create the domains with maximum memory since
> the other domains are not using any RAM at
> the time.
>
> Here comes my problem:
>
> When I do
>
> xm restore t1.saved
> xm restore t2.saved
> xm restore t3.saved
>
> I get "Error: 1" when I create the third
> domain. I get the feeling it has something to
> do with "not enough memory" (is that correct?)
>
> So even though the three 128 Mb domains should
> fit easily within the approx 2G RAM, Xen doesn't
> think so. Which is why I've come to think there
> might be some problem with how it is counting available RAM.
>
> - Is Xen taking ballooned memory into account properly?
>
> - Is it interpreting the info in the .saved file correctly?
>
> If that is the bug, I then wonder why I'm able to get two
> user domains up and running, and not just one...
> Could that be related to that the machine is a 2 CPU machine?
>
> Well that's just speculation... Does anyone have any
> suggestions what I might be doing wrong, or where the
> problem may be?
>
> Cheers,
> Lars Rasmusson
>
>
>
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.sourceforge.net/lists/listinfo/xen-devel
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel
|
|
|
| |
|
Home