[Xen-devel] question about xm mem-max and xm mem-set without rebooting VM

[tgh <tianguanhua@xxxxxxxxxx>]

hi
I use  xen-3.0.3,and  boot up a VM with its config file "mem=256"
and during VM running, I try to" xm mem-max it 512 "and "xm mem-set it 512"
then without rebooting VM, I run an application to allocate and 
wirte/read memory(say size >240M),but  it fails
and cat /proc/meminfo in the VMshell, VM does not have 512M memory

but if rebooting VM after xm mem-max 512 and xm mem-set 512, the 
application will work well
does the"xm mem-max and xm mem-set" have to be followed by a rebooting 
VM to make it work ,or how to make it work without rebooting VM?
nowadays ,does xen support the "xm mem-max" without rebooting VM ,or not ?

or does future version support it  or does anyone work to achieve it ?


could you help me
Thanks in advance


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