[libvirt] getFreeMemory reporting incorrectly?

[Hany Fahim]

Hi,
I'm currently running 2 CentOS 5.3 systems, one running Xen 3.3 and libvirt
0.6.4 (called node1) and the other running Xen 3.0.3 (stock CentOS) and
libvirt 0.6.4 (called node2). The machines are practically identical except
for the upgraded Xen installation. When using the libvirt-python module, I'm
getting strange values from getFreeMemory() on the Xen 3.3 machine. See
below:

Xen 3.0.3:

[root at node2 ~]# python
Python 2.4.3 (#1, Jan 21 2009, 01:10:13)
[GCC 4.1.2 20071124 (Red Hat 4.1.2-42)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import libvirt
>>> conn = libvirt.open('xen:///')
>>> print(conn.getFreeMemory())
268959744
>>>

Which is correct since there's approximately 256MB free. Now in the Xen 3.3
box:

Xen 3.3:

[root at node1 ~]# python
Python 2.4.3 (#1, Jan 21 2009, 01:10:13)
[GCC 4.1.2 20071124 (Red Hat 4.1.2-42)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import libvirt
>>> conn = libvirt.open('xen:///')
>>> print(conn.getFreeMemory())
576460752303423488
>>>

node1 should actually be reporting 0MB free, but instead I'm getting this
huge number. It would be nice if I had this much memory though... Anybody
else run into this?

Hany
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