Confirming it's still a problem with Ubuntu 6.10 (Edgy) and its kernel 2.6.17-10-generic!
Appending lpj=8000000 at boot fixes this 100% of the time for my 2.0GHz MacBook. The number for the 1.83 should be lower. Thanks to Ryan Lortie for the information. ** Changed in: linux-source-2.6.17 (Ubuntu) Status: Unconfirmed => Confirmed -- Kernel panic - not syncing: IO-APIC + timer doesn't work! https://launchpad.net/bugs/54621 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs