Re: [Xen-users] dom0_mem not working in debian wheezy

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2014-09-04 at 11:32 +0800, kevin.zhang@xxxxxxxxxxx wrote:
> 
> Hi all,
> 
> 
>       Today I found that dom0_mem option does not work in my 64G 2 cpu
> server , but works in my 16G 1 CPU server.
> I am using debian wheezy and xen 4.3.3.
>       Firstly I set GRUB_CMDLINE_XEN="dom0_mem=6G,max:6G"
> in /etc/default/grub,  
>  Then execute:  
>     update-grub
>  After rebooting,  execute:
>       xm list 0 
>   Only see no more than 3967M reserved for Domain-0 in my 64G 2CPU
> server, however, my 16G 1CPU server display correctly.
>   If I use xm mem-set 0 5000, dom0 memory also can be raised.
>   But why it does not work with dom0_mem option?

Does
http://blog.xen.org/index.php/2012/04/30/memory-where-it-has-not-gone/
relate to your situation?

Ian.



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