I have done following steps as per Leann's suggestion: disable vboxdrv: root@minime:~# grep vboxdrv /etc/modprobe.d/blacklist.conf blacklist vboxdrv
remove i915 grub cmdline parameter: /etc/defaul/grub # GRUB_CMDLINE_LINUX="i915.i915_enable_rc6=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1" with a successive run of update-grub -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1214931 Title: kernel oops in free_task To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1214931/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
