Not looking to run Windows guests... so no problem there. And a free server beats $60 any day :-) By the way, I have another one that is just about the same (4 x P-III 900Mhz and 16GB) running ESXi 3.5 U5 like a champ with no problems, so I was hoping to get Xen up on this one (for a project I need to test out Xen with). And no, I have not explored KVM on there yet... even though I did load it. I'm really just interested in Xen right now. B. > Well, I can't say for sure the reason why it doesn't see all cpus, but I > do > know a P-III system is not going to support virtualization technology, so > you would never be able to run windows guests on it. Only systems sold in > the last year or two support VT. And motherboards that do support it are > fairly cheap - starting in the $60 range. > > Anywho, have you tried KVM instead? > > > > -----Original Message----- > From: centos-virt-bounces at centos.org > [mailto:centos-virt-bounces at centos.org] > On Behalf Of Bryan A. Ignatow > Sent: Thursday, June 03, 2010 10:27 AM > To: Discussion about the virtualization on CentOS > Subject: [CentOS-virt] Xen 3.1.2 on CentOS 5.5 doesn't see all 4 CPUs > > Hello all, > > I've been digging around on this for a few days and I have not come up > with > a solution. > > I have a Compaq ProLiant DL580 (G1, the old tan Compaq) with 4 x 700MHz > P-III CPUs and 11GB of memory. I've loaded CentOS 5.5 with Virtualization > (Xen) + KVM and patched up to current (full KS packages file list at the > end). > > When it boots, Xen only detects a single CPU as shown in the xm dmesg > output > (full output and the end): > > (XEN) Detected 701.650 MHz processor. > (XEN) I/O virtualisation disabled > (XEN) CPU0: Intel Pentium III (Cascades) stepping 04 > (XEN) Platform timer overflows in 2 jiffies. > (XEN) Platform timer is 1.193MHz PIT > (XEN) Brought up 1 CPUs > [...] > (XEN) Dom0 has maximum 1 VCPUs > > > The system shows all 4 CPUs when booted outside of Xen. > > Any ideas on Xen options or anything I can try to see if I can get all 4 > CPUs? > > > Thanks, > > Bryan > > _______________________________________________ > CentOS-virt mailing list > CentOS-virt at centos.org > http://lists.centos.org/mailman/listinfo/centos-virt > -- Bryan A. Ignatow bryan at ignatow.org