If I try to start my Linux dom0 with more than than about 800M it won''t boot. I have 2G of RAM. What''s going on? Something to do with x86 memory architecture? Also how do I get a a xen dmesg from the previous boot? sam _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jeb Campbell
2005-Jun-15 15:10 UTC
Re: [Xen-users] can''t allocate more than ~800MB to dom0
Sam Elstob wrote:> If I try to start my Linux dom0 with more than than about 800M it won''t > boot. I have 2G of RAM. What''s going on? Something to do with x86 > memory architecture? Also how do I get a a xen dmesg from the previous > boot?Check how much memory you have free (from dom0) with "xm info" -- you can''t give more than that. Either reboot with less memory for dom0, or ballon dom0/domU(''s) down. Can''t get a xen dmesg from the previous boot, but you can look at the current one with "xm dmesg". Of course you could script your dom0 to save it with "xm dmesg > xen-dmesg.$number" on startup. -- Jeb Campbell jebc@c4solutions.net _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Mark Williamson
2005-Jun-15 18:03 UTC
Re: [Xen-users] can''t allocate more than ~800MB to dom0
> If I try to start my Linux dom0 with more than than about 800M it won''t > boot. I have 2G of RAM. What''s going on? Something to do with x86 > memory architecture? Also how do I get a a xen dmesg from the previous > boot?I''m surprised it won''t boot at all. However, x86 Linux does require Highmem4G support compiled in if it''s going to use large memory machines: have you compiled a dom0 kernel with this included (the binary distribution of the xen0 kernel does not have this). Cheers, Mark _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users