On Thu, Aug 17, 2017 at 03:49:19PM -0400, Jerry Geis wrote:
in /tmp I found files of names... systemd-private-XXXXXXXX-colord and rtkit I have never seen these files before.
Unrelated to the disk space issues, but the systemd-private-* directories are created by systemd services that have PrivateTmp turned on. THose services run with a private /tmp namespace, so they can't see the rest of the OS's /tmp.