A Head's Up

I've been having problems with the "wrench" not working, and not being able to get to "create content", plus some other small problems. I've mentioned this elsewhere.
However, I found out that some program is filling up the /tmp directory on my hosting service. When this is filled certain things stop working. So, here's the possible "head's up".
It may be that OP is saving "sessions" in this /tmp directory. And, not deleting them when finished.
If this is so, I'd like to know how to stop it from doing this, and using another directory which would have a much larger limit. How and where does OP save such activity? That is, logging all the session activity, in this case, of my sessions with the program, such as admin activity, etc.
And, is this something that OP is programmed to do, or is doing by "accident"?
When the directory fills up different parts of OP stop working, such as mentioned in first sentence. And, might explain loss of formatting of theme since OP is using a full directory for temp files?

Any thots?

Bob