Thanks for the help! The following causes the program to crash (see output below).
Here is the info on my python version:
Python 2.5 (r25:51908, Oct 18 2007, 16:19:30)
[GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-59)] on linux2
I am using root version 5.24
[pryan@jever TreeManipulation]$ python tmp.py
*** Break *** segmentation violation
Using host libthread_db library "/lib/tls/libthread_db.so.1".
Attaching to program: /proc/10919/exe, process 10919
[Thread debugging using libthread_db enabled]
[New Thread -1208121664 (LWP 10919)]
[New Thread -1212408928 (LWP 10928)]
0x006717a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
Thread 2 (Thread -1212408928 (LWP 10928)):
#0 0x006717a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0x008fdc1f in sem_wait@GLIBC_2.0 () from /lib/tls/libpthread.so.0
#2 0x00c18e13 in PyThread_acquire_lock (lock=0x9e1f728, waitflag=1) at Python/thread_pthread.h:334
#3 0x00bea9b0 in PyEval_AcquireThread (tstate=0xa4e22f8) at Python/ceval.c:251
#4 0x00c1e969 in t_bootstrap (boot_raw=0xa463a00) at Modules/threadmodule.c:422
#5 0x008f93cc in start_thread () from /lib/tls/libpthread.so.0
#6 0x0075af0e in clone () from /lib/tls/libc.so.6
Thread 1 (Thread -1208121664 (LWP 10919)):
#0 0x006717a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0x0071a4db in __waitpid_nocancel () from /lib/tls/libc.so.6
#2 0x006c3779 in do_system () from /lib/tls/libc.so.6
#3 0x006c3af1 in system () from /lib/tls/libc.so.6
#4 0x008ff98d in system () from /lib/tls/libpthread.so.0
#5 0x010b94bb in TUnixSystem::Exec () from /rooms/home/cern/root/pro/lib/libCore.so
#6 0x010bf153 in TUnixSystem::StackTrace () from /rooms/home/cern/root/pro/lib/libCore.so
#7 0x010bbb4e in TUnixSystem::DispatchSignals () from /rooms/home/cern/root/pro/lib/libCore.so
#8 0x010bbbdc in SigHandler () from /rooms/home/cern/root/pro/lib/libCore.so
#9 0x010bae59 in sighandler () from /rooms/home/cern/root/pro/lib/libCore.so
#10 <signal handler called>
#11 0x07db15cf in TTreeCloner::CopyProcessIds () from /rooms/home/cern/root/pro/lib/libTree.so
#12 0x07db1be9 in TTreeCloner::Exec () from /rooms/home/cern/root/pro/lib/libTree.so
#13 0x07db98d8 in TTree::CloneTree () from /rooms/home/cern/root/pro/lib/libTree.so
#14 0x07de4712 in G__G__Tree_109_0_31 () from /rooms/home/cern/root/pro/lib/libTree.so
#15 0x058538c5 in Cint::G__CallFunc::Execute () from /rooms/home/cern/root/pro/lib/libCint.so
#16 0x001557dc in PyROOT::TRootObjectExecutor::Execute () from /rooms/home/cern/root/pro/lib/libPyROOT.so
#17 0x0015b044 in PyROOT::TMethodHolder<PyROOT::TScopeAdapter, PyROOT::TMemberAdapter>::CallSafe () from /rooms/home/cern/root/pro/lib/libPyROOT.so
#18 0x0015b260 in PyROOT::TMethodHolder<PyROOT::TScopeAdapter, PyROOT::TMemberAdapter>::Execute () from /rooms/home/cern/root/pro/lib/libPyROOT.so
#19 0x0015f6dd in PyROOT::TMethodHolder<PyROOT::TScopeAdapter, PyROOT::TMemberAdapter>::operator() () from /rooms/home/cern/root/pro/lib/libPyROOT.so
#20 0x00164705 in PyROOT::(anonymous namespace)::mp_call () from /rooms/home/cern/root/pro/lib/libPyROOT.so
#21 0x00b7c37c in PyObject_Call (func=0x7bb820, arg=0xb7f7720c, kw=0x0) at Objects/abstract.c:1860
#22 0x00bef4f8 in do_call (func=0xb7bd3c4c, pp_stack=0xbfea7a5c, na=2, nk=0) at Python/ceval.c:3777
#23 0x00beef40 in call_function (pp_stack=0xbfea7a5c, oparg=0) at Python/ceval.c:3589
#24 0x00bed2b7 in PyEval_EvalFrameEx (f=0x9c67374, throwflag=0) at Python/ceval.c:2269
#25 0x00bedca2 in PyEval_EvalCodeEx (co=0xb7f5e9b0, globals=0x0, locals=0xb7fb1a44, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:2833
#26 0x00beadaf in PyEval_EvalCode (co=0xb7f5e9b0, globals=0xb7fb1a44, locals=0xb7fb1a44) at Python/ceval.c:494
#27 0x00c114c6 in run_mod (mod=0x9c935c8, filename=0xbff52b50 "tmp.py", globals=0xb7fb1a44, locals=0xb7fb1a44, flags=0xbfea7c5c, arena=0x9c78ea0) at Python/pythonrun.c:1264
#28 0x00c11450 in PyRun_FileExFlags (fp=0x9c55008, filename=0xbff52b50 "tmp.py", start=257, globals=0xb7fb1a44, locals=0xb7fb1a44, closeit=1, flags=0xbfea7c5c) at Python/pythonrun.c:1250
#29 0x00c10aed in PyRun_SimpleFileExFlags (fp=0x9c55008, filename=0xbff52b50 "tmp.py", closeit=1, flags=0xbfea7c5c) at Python/pythonrun.c:870
#30 0x00c105bd in PyRun_AnyFileExFlags (fp=0x9c55008, filename=0xbff52b50 "tmp.py", closeit=1, flags=0xbfea7c5c) at Python/pythonrun.c:689
#31 0x00c1c37a in Py_Main (argc=1, argv=0xbfea7d84) at Modules/main.c:496
#32 0x0804869e in main (argc=2, argv=0xbfea7d84) at Modules/python.c:23
Traceback (most recent call last):
File "tmp.py", line 36, in <module>
treeClone = tree.CloneTree(-1, "fast")
SystemError: problem in C++; program state has been reset