Re: [CentOS-virt] xen kernel showing only one processor on SMP

Hristo Benev wrote:

What if you boot with other kernel?

If you have the same result maybe BIOS update is required for your server?!

Hi thanks for the response BIOS is updated and current, if I boot to gentoo liveCD, I see the expected 4 processors. This server has indeed shown TWO processors using centOS xen-kernel before, but now after some time and upgrades I notice there is only one (again!).

Is it as simple as BIOS in every case, or is there some other path to discovering the problem I can try? (I have done many many hours of forum searches and googling on this issue) Thank you