Re: [Xen-devel] problem to balloon memory beyond initial allocation

[xuehai zhang <hai@xxxxxxxxxxxxxxx>]

Keir,

Thanks for your reply.

> On 10 Jul 2005, at 14:00, Xuehai Zhang wrote:
>
> > My above experiment is not very successful. I will appreciate if you can
> > point out what I did wrong. Thanks in advance!
>
> maxmem will default to initial allocation to the domain (128MB in this 
> case). The 'mem=' parameter is parsed by the guest -- it does not inform 
> Xen. To do that you would need to add 'maxmem=256' to your config file.
I tried to add "maxmem=256" to the domain's config file, but it is not very helpful. I still can not 
use "xm balloon vm1 200" to increase the memory to 200MB after "vm1" is booted up.
> The lowmem/highmem balloon lines show how big the balloon is in terms of 
> low memory (that is 1:1 mapped by the guest) and high memory (the area 
> that needs to be kmapped by the kernel to access it). 'Hard limit' is 
> the maximum reservation being enforced by Xen. In your case it is probed 
> as 128MB, meaning that your 'xm maxmem' invocation had no effect. Sounds 
> like it is broken. :-)
Thanks again.

Xuehai

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