Forget about it, the kernel update didn't help. Same situation again like before, after a while the CPU went over 100% usage, the system got slower and slower until it was freezing completely.
What I tried so far: - VirtualBox in 3 different versions (4.2.10 Ubuntu package, 4.2.12 package for Ubuntu from Oracle's repository, 4.1 using the generic installation archive from virtualbox.org) - Kernel 3.8.0-10-generic from stock Ubuntu 13.04 - Kernel 3.9.0 from kernel.ubuntu.com (see above) - disabling all VBox options like PAE/NX, VT-x (incl. disabling it in the BIOS), IO-APIC - tried with 2 CPUs, 1 CPU, 50% CPU usage, 100% CPU usage ... - changing the Chipset from PIIX3 to ICH9 and back - removed kernel modules kvm_intel and kvm (read somewhere that this might be the culprit, but it also didn't help) Nothing helped, the problem came back all the time. Sometimes just during booting the VM, otherwise after a few minutes of work.... I am really out of ideas here. What can I do to find out what is freezing my machine? How can I prevent it? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/924684 Title: System CPU maxes out at arbitrary times To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/924684/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
