Sorry about posting the irrelevant information. I booted with the "noapic" and it fixed the kernel panic but, like Karl stated, made the mouse very sluggish. Almost unusable. I tried using the "apic=debug" boot argument but that did not seem to do anything. I can also confirm that the kernel panic still occurs with linux- image-2.6.15-26-686.
Ben, do you have any other suggestions for debug information? -- Kernel panic - not syncing: IO-APIC + timer doesn't work! https://launchpad.net/bugs/52553 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs