Hi Christopher: I've tested it with the latest upstream kernel available 4.3.0-040300rc5 and the problem persist with the same symptoms described previously. This time tough I've got a crash file _usr_bin_Xorg.0.crash but when I've tried to send it as bug report it gives an error and prevent me to send it. The title of the crash report would be "Xorg crashed with SIGABRT in __libc_message()". HTH
** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1504914 Title: System freeze/restart on high memory usage To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1504914/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs