Can you post an lsmod and the complete dmesg? Softlockups are caused by someone holding interrupts disabled for too long (which can be caused by either a long delay in a critical section, or a deadlock on a spinlock), so they are quite hard to debug without all the info other than the "soft lockup detected" message.
-- Feisty herd 3 desktop CD sometimes fails to boot on CHGL30945PM1 https://launchpad.net/bugs/82921 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs