[Zope] zope2.6.1 debugging

[Bakhtiar A Hamid]

hi
previously, i reported that my zope / zeo clients hangs.  following the howto 
by evan, i managed to get these when i attach to the 2nd zope pid

--
Loaded symbols for 
/usr/local/Zope-2.6-cvs/lib/python/Products/PluginIndexes/TextIndex/Splitter/ZopeSplitter/ZopeSplitter.so
0x0806fb42 in Py_GetProgramFullPath () at eval.c:41
41      eval.c: No such file or directory.
        in eval.c

and on another zope instance, i have this

Loaded symbols for 
/usr/local/Zope-2.6-cvs/lib/python/Products/PluginIndexes/TextIndex/Splitter/ZopeSplitter/ZopeSplitter.so
0x4008caa5 in __sigsuspend (set=0xbffff0a0) at 
../sysdeps/unix/sysv/linux/sigsuspend.c:45
45      ../sysdeps/unix/sysv/linux/sigsuspend.c: No such file or directory.
        in ../sysdeps/unix/sysv/linux/sigsuspend.c

--
all other symbols loaded ok, but not that particular one.  and further, when i 
looked at the particular thread

(gdb) info threads
[New Thread 2050 (LWP 22622)]
[New Thread 3075 (LWP 22623)]
[New Thread 4100 (LWP 22624)]
[New Thread 5125 (LWP 22625)]
  6 Thread 5125 (LWP 22625)  0x4008caa5 in __sigsuspend (set=0x42d7bc6c) at 
../sysdeps/unix/sysv/linux/sigsuspend.c:45
  5 Thread 4100 (LWP 22624)  0x4008caa5 in __sigsuspend (set=0x4257ba4c) at 
../sysdeps/unix/sysv/linux/sigsuspend.c:45
  4 Thread 3075 (LWP 22623)  0x4008caa5 in __sigsuspend (set=0x41d7aefc) at 
../sysdeps/unix/sysv/linux/sigsuspend.c:45
  3 Thread 2050 (LWP 22622)  0x4008caa5 in __sigsuspend (set=0x4157c15c) at 
../sysdeps/unix/sysv/linux/sigsuspend.c:45
  2 Thread 2049 (LWP 22595)  0x401439f7 in __poll (fds=0x8b6e61c, nfds=1, 
timeout=2000)
    at ../sysdeps/unix/sysv/linux/poll.c:63
  1 Thread 1024 (LWP 22594)  0x0806fb42 in Py_GetProgramFullPath () at 
eval.c:41

and in the many instances i looked, the running thread that seemed to hang 
zope is the one with Py_GetProgramFullPath() 

i have no real experience with gdb, and i can never get the traceback as 
suggested by evan's howto. but this is the data that i got.

any help appreciated

thanks