So not rc6 related - that rules out the most likely suspect for the GPU. Let the machine run memtest overnight or over the weekend, just to rule a bad stick of memory. Then if you have VTd enabled, intel_iommu=off will be useful to test, and perhaps pcie_aspm=off.
** Summary changed: - System freeze after high memory usage (Ubuntu 12.10 64-bit on ivy bridge HD4000) + [ivb] System freeze after high memory usage -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1137817 Title: [ivb] System freeze after high memory usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1137817/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
