Problem seems to be solved on my HP Pavilion DV5245ea with 2.6.20-11-generic. I made varoius reebot and power on/off with kill switch on and no lockup occurred.
-- CPU soft lockup during boot if ipw3945 kill switch is on https://launchpad.net/bugs/63418 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
