IDE "lost interrupt" on SMP

I decided to replace the Celerons on my Asus P2B-D with something a little faster so I bought a new 1Ghz PIII** (it would have been two but the local dealer only had one in stock).

However I can't boot any SMP configured kernel. It gets as far as the partition check and then starts printing "hd<x>: lost interrupt" after than it proceeds _very_ slowly to print the partitions and then grinds to a halt as it tries to mount the root fs (I suspect that it hasn't actually crashed but that disk I/O is proceeding extremely slowly).

Configuring the kernel for single processor works and boots OK
- this is true for all the kernels (2.2.x and 2.4.x including 2.4.7) that I've tried.

I thought that SMP kernels were OK with just one processor. Do I need to add the second one or could there be something else wrong.

** Actually underclocked at 750Mhz as the BX chipset only goes to 100 Mhz FSB

I've been reporting this problem for years (since day I've bought SMP board with two Celeron)

However noone seems to care - so you simply can't use SMP kernel for monoprocessor system - unless Andre Hedric will consider this is serious problem (simple test - boot SMP kernel on SMP computer with cpu=1 or nosmp parameter)

bye

kabi