[Xen-users] xm mem-sets and xm vcpu-set for HVM domain.

[jd <jdsw2002@xxxxxxxxx>]

hi
   I have centos 5.2 and 5.3 and xm mem-set does not seem to have any effect on 
HVM domains. (This works on my dev Fedora 8 machine though)

I have one HVM starting out at say 512.  I can not increase the memory or 
decrease the memory.

[root@qa10-cent-53 ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0      512     2 r-----   7158.4
RHEL5                                     19      519     1 -b----   1679.4
u-live                                    33      519     2 -b----    148.3

[root@qa10-cent-53 ~]# xm mem-set u-live 256

[root@qa10-cent-53 ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0      512     2 r-----   7163.1
RHEL5                                     19      519     1 -b----   1680.0
u-live                                    33      519     2 -b----    148.5


I found the following... 
https://bugzilla.redhat.com/show_bug.cgi?id=435208

So I manually reduced the dom0 to 512. The machine has 3G ram. 
But it did not help.


Any ideas. 

Thanks
/Jd

== Here is the entry in xend.log ==
[2009-06-17 12:19:44 xend.XendDomainInfo 4244] DEBUG (XendDomainInfo:1126) 
Setting memory target of domain u-live (33) to 256 MiB.


== Xen details ==
[root@qa10-cent-53 ~]# xm info | grep xen
release                : 2.6.18-128.1.10.el5xen
xen_major              : 3
xen_minor              : 1
xen_extra              : .2-128.1.10.el5
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64 
xen_pagesize           : 4096
xen_changeset          : unavailable
xend_config_format     : 2

[root@qa10-cent-53 ~]# xm info | grep mem
total_memory           : 2942
free_memory            : 1309




      

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