Hi, I think I'm seeing this too. This is running mailman 2.1.18-2 on Debian 8.3. The only relevant things I can find seem to be
Jan 24 06:56:12 2016 mailmanctl(12968): The master qrunner lock could not be acquired because it appears as if another master qrunner is already running. Jan 24 06:56:12 2016 mailmanctl(12968): This kind of "untraceable" bug is quite annoying. Is there some setting to possibly get more verbose error messages? Kind regards, Ondřej Grover
