[Xen-users] "Out of Memory" phenomenon with Xen 3.03 on Dual Pentium III

["Dirk H. Schulz" <dirk.schulz@xxxxxxxxxxxxx>]

I have setup a Dual Pentium III server (4 GB RAM) with CentOS 5.2  
32Bit and Xen 3.03. Now I have a weird phenomenon:
I have 2 virtual machines running, using 1.25 GB of RAM together. xm  
list shows dom0 using 2.2 GB. I cannot start another virtual machine;  
if I try, I get the error:
ERROR Out of memory: xc_dom_boot_mem_init: can't allocate low memory  
for domain
I do not have this phenomenon with CentOS 32 Bit and Xen 3.03 on other  
machines (mostly xeon processors without hardware virtualization).
Is this a known problem on this old platform? Is there some  
configuration that can be used to work around it?
Thanks for any hint or help.

Dirk 

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