Also appears on a Lenovo X220 with Natty AMD64, EFI-Grub and 3.0.0-rc4 kernel from PPA-Mainline.
Appending "reboot=a,w" in /etc/default/grub line GRUB_CMDLINE_LINUX_DEFAULT solved the problem for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/721576 Title: [natty] kernel panic on reboot with (U)EFI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/721576/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
