Sorry for delay. This seems to have been a physical problem with the RAM. It is a six- core AMD system with 4 sticks of 4 GB RAM, specced to 1600 MHz. Apprarently the mainboard doesn't overvolt the RAM to its needed 1.65V when running at 1600MHz (even though the BIOS actually asks whether it should do this when you apply the RAM-stick-specified settings..) And then, even when setting the voltage to 1.65 manually, the system still isn't stable at 1600 MHz RAM speed.
But when I clocked the RAM down to ca. 1450 MHz instead (currently at 1.60v), the system seems fully stable (even with a slight overclock of the CPU - so this was definitely a RAM issue). This bug can be closed. Sorry for the noise. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to kvm in Ubuntu. https://bugs.launchpad.net/bugs/836119 Title: KVM Guest gets general protection fault on two CPUs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/836119/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
