Just for completeness, here's a link to a test case that makes it easy to reproduce this bug:
https://lkml.org/lkml/2012/12/20/536 ** Tags removed: verification-needed-precise verification-needed-quantal ** Tags added: verification-failed-precise verification-failed-quantal ** Tags removed: verification-failed-precise verification-failed-quantal ** Tags added: verification-reverted-precise verification-reverted-quantal -- 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
