I am able to reproduce the issue very easily using the test application available at https://bugzilla.kernel.org/show_bug.cgi?id=22602 on a virtual machine with a single CPU (haven't tried with multiple CPUs).
Using apw test kernel, I am not able to reproduce it anymore. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/922906 Title: Kernel Oops - BUG: unable to handle kernel NULL pointer dereference at 0000009c; EIP is at __ticket_spin_lock+0x8/0x30 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/922906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs