[Zope] Zope 2.7.0 crash on FreeBSD 5.2

[AM]

Hello,

I've recently installed Python 2.3.4 and Zope 2.7.0 on FreeBSD 5.2 and 
moved my Data.fs over with no apparent problems (at first).  Previously 
I was using Python 2.3.3, Zope 2.7.0, and FreeBSD 4.9 on a slightly 
slower machine.

However, now Zope is crashing with a segmentation fault when I try to 
edit one of the largest Python scripts (19k) in my site.  This is a 
script that I last edited on the old machine.  It runs fine, displays 
fine in the management interface, but trying to save it causes Zope to 
crash.

Searching online seems to indicate that I should have set a larger stack 
size for Python.  I didn't install Python from the FreeBSD ports 
collection (for various reasons), but did it myself.

Does the Python stack size sound like the problem?

If it helps, gdb traceback gives me:

(and I don't know what most of this means)

#0  0x080729f3 in lookdict_string (mp=0x867e4f4, key=0x815b4e0, 
hash=435549560)
     at Objects/dictobject.c:316
#1  0x08073741 in PyDict_GetItem (op=0x867e4f4, key=0x815b4e0)
     at Objects/dictobject.c:498
#2  0x0805b3c0 in class_lookup (cp=0x868526c, name=0x815b4e0,
     pclass=0xbfaab088) at Objects/classobject.c:189
#3  0x0805b807 in instance_getattr2 (inst=0x904548c, name=0x815b4e0)
     at Objects/classobject.c:729
#4  0x08060c65 in instance_getattr1 (inst=0x904548c, name=0x815b4e0)
     at Objects/classobject.c:708

Any help is appreciated.

Aaron