cyrus doesn't shutdown if processes exceed a limit about 700 threads

[Jan Kowalsky]

Hi all,

we have a problem with restarting cyrus. It's no problem if the number
of processes is under a limit of let's say about 700 threads.

But if it's above we get reproducable the error that cyrus can't stop.
There remains the master process which we have to kill with -9.

Any idea or similar problems?

Regards
Jan