Part II: Running SMP kernel but only one cpu

[Duane]

The bios in this old Micron dual PPro-180 full tower antique only
initializes the second CPU if the machine is cold-booted.  A simple
'reboot' results in a single processor machine regardless of the
kernel that is launched. This fact -- unknown to me before last night
-- was the source of a great deal of lost time!

My 6.4 SMP kernel (now customized) runs just fine, with both cpus
active, *except* for this message streaming constantly up the boot
console.

(from /var/log/messages:)

May  4 20:20:33 poobah kernel: interrupt storm detected on "irq15:";
throttling interrupt source
May  4 20:21:02 poobah last message repeated 42 times
May  4 20:21:03 poobah login: ROOT LOGIN (root) ON ttyv1
May  4 20:21:03 poobah kernel: interrupt storm detected on "irq15:";
throttling interrupt source
May  4 20:21:33 poobah last message repeated 30 times
May  4 20:23:33 poobah last message repeated 120 times
May  4 20:33:33 poobah last message repeated 599 times
May  4 20:40:01 poobah last message repeated 387 times
etc etc ad repetitum infinitum

Question1: Is this something I should go to some lengths to eliminate?

Question2: What the heck is it?


Best regards,

-- 
Duane