CI server and /tmp

[Julien Le Dem]

Hello,
Do the Jenkins slaves cleanup their /tmp regularly?
If this is the case, would it be possible to delete only stuff that is
older than a day ?
Many things write to /tmp and it seems tests fail from time to time
because of a /tmp file missing.
We could try hard to have everything being written only to the build
workspace but this is sometimes embedded in dependencies' logic.
I would very much like to get rid of they false test failures.
Thank you, Julien