I have this problem with Gutsy. irqpool didn't help here. kernel image pakage is of version 2.6.22-14.46.
Similar problem was with original Feisy's kernel, but then upgrade to 2.6.20-16.28 helped. Then there was another one kernel update in Feisty wich had this problem again, so i was using 2.6.20-16.28 prior to my upgrade to Gutsy
I have this problem with Gutsy. irqpool didn't help here. kernel image pakage is of version 2.6.22-14.46.
Similar problem was with original Feisy's kernel, but then upgrade to 2.6.20-16.28 helped. Then there was another one kernel update in Feisty wich had this problem again, so i was using 2.6.20-16.28 prior to my upgrade to Gutsy
See also bug #114081