On 9 Nov 2010, at 3:08 PM, Andriy Gapon wrote: >> The kernel should still not panic if someone disables APIC. > > 100% agreement - and it shouldn't do that now. The kernel on my Core Duo machine does not panic with APIC off. In fact it works much better with it off. The only problem is that I am missing one of my two Cores with APIC off! Dan