problems with GDB

I was anxious to try my application with NPTL so I installed RH9 on a test
machine and rebuilt my application. It comes up ok, but under GDB dies when 
the threads do a context switch.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1241505088 (LWP -1073738821)]
0x00000000 in ?? ()
(gdb) 
(gdb) bt
#0  0x00000000 in ?? ()
(gdb) thread apply all bt
Cannot find new threads: generic error
(gdb) q


Am I doing something wrong or is the RH9 gdb just not ready for prime time yet?

				-Kip