To continue this barrage of comments, I removed the nvidia binary driver package before I made that trace as well - to no effect, obviously.
-- [feisty] [linux-image-2.6.19-6] BUG: soft lockup detected on CPU#0! https://launchpad.net/bugs/72895 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs