I had this same bug and it appears to have been fixed already in the latest version. I have upgraded to 8.98 from xorg-edgers and have not had an OOPS recurrence in over a week. It was previously a couple times a day, often triggered by interaction with a flash plugin.
As a reference point: I did not experience this OOPS until I added a second video card to support a dual-head setup. Both cards are HD 6870. $ apt-cache policy fglrx fglrx: Installed: 2:8.980-0ubuntu1~xedgers~precise1 Candidate: 2:8.980-0ubuntu1~xedgers~precise1 Version table: *** 2:8.980-0ubuntu1~xedgers~precise1 0 100 /var/lib/dpkg/status 2:8.960-0ubuntu1.1 0 900 http://mirrors.rit.edu/ubuntu/ precise-updates/restricted amd64 Packages 2:8.960-0ubuntu1 0 500 http://mirrors.rit.edu/ubuntu/ precise/restricted amd64 Packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1023916 Title: OOPS: kernel NULL pointer dereference in _ZN20CMMHeap_SystemMemory8pushPoolEP7CMMPool+0x11/0x40 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1023916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs