I've got a CentOS 4.3 box here which is exhibiting crazy (I think) CPU load on one of the four migration kernel processes:

# ps ax | grep migration 2 ? S 0:08 [migration/0] 4 ? S 112:23 [migration/1] 6 ? S 2:48 [migration/2] 8 ? S 0:11 [migration/3]

It's running kernel 2.6.9-34.ELsmp.

Does anyone have any idea what might cause that?

Thanks :)