Public bug report changed:
https://launchpad.net/malone/bugs/32893
Task: ubuntu linux-source-2.6.15
Status: Unconfirmed => Needs Info
Comment:
Did you try any of the suggestions in dmesg? E.g.:
pci=biosirq
irqpoll
As boot options?
There a new ipw2200 driver coming, but I don't think that will fix your problem.