Comment 8 for bug 1491563

Added logging to try and see what is happening in this directory that is causing it to be busy.

Logs available at http://logs.openstack.org/48/219448/4/check/gate-tempest-dsvm-full/a3552a1/logs/screen-n-cpu.txt.gz.

Added 'lsof' and 'mountpoint' commands.

Unfortunately / Fortunately neither show any cause for the busy error. The directory is not a mountpoint and doesn't seem to have any processes with open files. At least, not in the top level of the directory. Need to check if I have the 'mountpoint' command pointed at the wrong place.

Instead of 'instance_del/' perhaps 'instance_del/rootfs' is the correct directory to check if still mounted?