Today I accidentally discovered that it is not possible to suspend (hibernate) the system while the btrfs scrub process is running (see the attached log). Could this be considered a bug, or did I miss something? Some more info: $ uname -a Linux asusntb 3.13.6-1-ARCH #1 SMP PREEMPT Fri Mar 7 22:47:48 CET 2014 x86_64 GNU/Linux and btrfs-progs-3.12 is installed. Regards, Jakub Klinkovský