Hi. Mikael Pettersson wrote: >>CPU0: AMD Athlon(tm) Processor stepping 02 > Please post the contents of /proc/cpuinfo. The age OK. > If a previous kernel successfully found the local APIC, > then please state which one and post its boot log. Attached is the dmesg from 2.6.8-rc1. 2.6.9 also finds it if I specify "lapic", but dmesg contains nothing, while 2.6.8-rc1 screams out loudly about APIC. Would be nice to get these messages back btw. > (And please use nmi_watchdog=2 so we can confirm that > it's there and working.) OK. And I think it was really working because of the non-zero NMI count in /proc/interrupts. I used NMI to debug some stuff.