Hello Chris, I can reproduce this on my side too, with Ubuntu 16.04 + 4.4.0-97 kernel. PREEMPT config: $ cat config-4.4.0-97-generic | grep PREEMPT CONFIG_PREEMPT_NOTIFIERS=y # CONFIG_PREEMPT_NONE is not set CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set Bug reports on launchpad: https://bugs.launchpad.net/bugs/1718925 https://bugs.launchpad.net/bugs/1717443 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
