Comment #5 on issue 161 by [email protected]: Wrong calculation of free memory using xen-pvm (2.4.2 under Gentoo)
http://code.google.com/p/ganeti/issues/detail?id=161
This is purely an xen issue and has nothing to do with ganeti but for the sake of documentation: xen 4.1.0 under Gentoo with 2.6.34 Kernel seems to ignore dom0_mem if it is not in kbyte (dom0_mem=262144) format. (against documentation which states that newer versions of xen are able to handle unit symbols as in 256M).
