According to Dieter Maurer:
The reason is the way python handles threads on some systems (RedHat-7.3, kernel 2.4.20, without NPTL).
What is "NPTL"?
Native POSIX Thread Library.
That is the good behaviour. Thus, we only have to learn how we can get "NPTL" for all Linux systems.
However, i dont know enough about NPTL. Only that it caused us some grief when we migrated applications from RedHat-7.3 to RedHat-9 (we had to set LD_ASSUME_KERNEL=2.4.1 for some applications [including oracle] to work).
By the way, nobody answered my problem report on comp.lang.python. Was maybe a bad time, during "Pycon".
Yes, i think it is more a python problem than a zope problem. But it bites the Zope server on a linux system w/o NPTL. Maybe we have more luck this time... \wlang{} -- Willi.Langenberger@wu-wien.ac.at Fax: +43/1/31336/9207 Zentrum fuer Informatikdienste, Wirtschaftsuniversitaet Wien, Austria