GC thread safe?

[Dieter Maurer]

Several Zope users face crashing Python 2.1.2 (SIGSEGV inside
the garbage collector). The problem only occurs when
the following conditions are true:

  *  Zope runs in multi-threaded mode

  *  the cyclic garbage collector is not deactivated

Is the cyclic garbage collector known to be thread safe?


Dieter