Segmentation Fault on CDLL reloading

[Marcus.CM]

Hi,

I use the following ctype to load a .so library in Linux.

vr = ctypes.CDLL(sstr)      

And the following to release it so that i can reload the library without 
quiting the python script.

 _ctypes.dlclose(vr._handle)

These calls are guarded by a writer lock and access to it guarded by a 
reader lock which i got from recipe : 
http://code.activestate.com/recipes/413393/
           
The problem is during the re-loading of the library occasionally the 
python script will abort with "Segmentation Fault". This is like 1 out 
of 10 times it can happen and that
is good enough to kill the application.

Is there any reason to this or how to do i prevent it?


Marcus .CM