I spoke too soon. Though the script caused a lock in seconds with the linux-image-3.2.0-26-generic kernel and ran for a good 40 minutes without a lock up on the linux-image-3.2.0-26-generic kernel, I just had another lock up now. So there's some further issue.
System: Dell Inspiron 7520, Ivy Bridge Graphics Controller (rev 09) OS: Ubuntu 12.04 64-bit -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/999910 Title: [IVB]12.04 64 bit System freezes (mouse, keyboard) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/999910/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs