I''ve got a problem getting Xen''s dom0 to correctly discover and use all installed physical RAM. I have tried two different x86 machines, one Pentium III with 256MB RAM and one AMD Athlon XP with 512MB. The Pentium machine''s dom0 kernel correctly reports 256 MB of RAM supplied with "[...] dom0_mem=131072 mem=262144k [...]" as kernel command line parameters. In contrast, the Athlon XP dom0 kernel only boots correctly when I omit "mem=524288k" on the kernel command line, and it only reports what I provide as "dom0_mem" as available physical RAM; strangely, "xm info" correctly reports 512MB of RAM, whereas the dom0 kernel itself only reports the dom0_mem amount. When I provide "mem=524288k" as kernel command line parameter, the dom0 kernel starts booting until the "Scrubbing free RAM/Scrubbing Dom0 RAM..." messages, then it reboots without any further console output. I''m using the same Xen binary (version 2.0.6, debian testing packages) and kernel versions (2.6.11.12-xen0/xenU) on both machines; the dom0 kernels are compiled with the same configuration options (except for the chosen CPU type), and I can''t figure out why one machine works correctly, while the other one refuses to correctly detect all available RAM. I''d be grateful for any hints/suggestions. Regards, Fabian Aichele _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users