Hi, I''ve had a look through the list archives and can''t find any relevant (64bit) posts. My 64 bit Xen install is only showing 3194MB of the 4x1GB RAM installed. The BIOS shows all 4GB on boot. It''s an Intel Desktop board (I forget the model and don''t currently have physical access) with a hyper threading Pentium 4 CPU. Any ideas or explanations would be most welcome. Thanks, Simon # xm info host : xen2 release : 2.6.18-3-xen-amd64 version : #1 SMP Mon Dec 4 17:56:42 CET 2006 machine : x86_64 nr_cpus : 2 nr_nodes : 1 sockets_per_node : 1 cores_per_socket : 1 threads_per_core : 2 cpu_mhz : 3000 hw_caps : bfebfbff:20100800:00000000:00000180:0000649d total_memory : 3194 free_memory : 2883 xen_major : 3 xen_minor : 0 xen_extra : .3-1 xen_caps : xen-3.0-x86_64 xen_pagesize : 4096 platform_params : virt_start=0xffff800000000000 xen_changeset : Tue Oct 17 22:09:52 2006 +0100 cc_compiler : gcc version 4.1.2 20061028 (prerelease) (Debian 4.1.1-19) cc_compile_by : ultrotter cc_compile_domain : debian.org cc_compile_date : Fri Nov 3 00:21:27 CET 2006 xend_config_format : 2 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of > Simon Capstick > Sent: 14 December 2006 14:36 > To: xen-users@lists.xensource.com > Subject: [Xen-users] Only 3194MB on 64bit Xen > > Hi, > > I''ve had a look through the list archives and can''t find any relevant > (64bit) posts. My 64 bit Xen install is only showing 3194MB of the > 4x1GB RAM installed. The BIOS shows all 4GB on boot. It''s an Intel > Desktop board (I forget the model and don''t currently have physical > access) with a hyper threading Pentium 4 CPU. Any ideas or > explanations > would be most welcome. > > Thanks, > > Simon >Most likely scenario is that your motherboard/chipset/BIOS doesn''t suport "memory hoisting", which is when memory covered by PCI devices is remapped above 4G - or perhaps you haven''t selected that option in the BIOS? -- Mats _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Petersson, Mats wrote: ...>> Hi, >> >> I''ve had a look through the list archives and can''t find any relevant >> (64bit) posts. My 64 bit Xen install is only showing 3194MB of the >> 4x1GB RAM installed. The BIOS shows all 4GB on boot. It''s an Intel >> Desktop board (I forget the model and don''t currently have physical >> access) with a hyper threading Pentium 4 CPU. Any ideas or >> explanations >> would be most welcome. >> >> Thanks, >> >> Simon >> > Most likely scenario is that your motherboard/chipset/BIOS doesn''t > suport "memory hoisting", which is when memory covered by PCI devices is > remapped above 4G - or perhaps you haven''t selected that option in the > BIOS? > > -- > Mats > >Thank you Mats. Obvious really once pointed out ;-) I''m positive that you pin-pointed the reason. I''ll double check the BIOS settings when I next get a chance. Simon _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users