I've downgraded to the 2.6.24-16-generic kernel (hardy) and the problem seems to have been resolved. This issue seems to be an issue with the later kernels.
-- RAID array causing "BUG: soft lockup" errors/system freeze https://bugs.launchpad.net/bugs/312163 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs