@Kristin: I'm sure for my machine (https://wiki.ubuntu.com/LaptopTestingTeam/HP_Pavilion_DV8220EA) because after your question I restarted five times in a row with the killswitch on. You're right that there was a time delay between the 2.6.20-10-generic and the matching linux-modules-restricted package. I noticed that too when I had to go and find a LAN cable to get back online. That was solved for me when I updated again a few hours later.
-- 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