got to number 56 got to number 57 got to number 58 got to number 59 *** Break *** segmentation violation =========================================================== There was a crash. This is the entire stack trace of all threads: =========================================================== Thread 2 (process 26409): #0 0x00007fff8fb26bca in __psynch_cvwait () #1 0x00007fff93254274 in _pthread_cond_wait () #2 0x000000010070becb in PyThread_acquire_lock () #3 0x00000001006db4fe in PyEval_RestoreThread () #4 0x0000000100e77061 in time_sleep () #5 0x00000001006d7feb in PyEval_EvalFrameEx () #6 0x00000001006db2a7 in PyEval_EvalCodeEx () #7 0x000000010066858b in function_call () #8 0x000000010063fbe1 in PyObject_Call () #9 0x00000001006d895a in PyEval_EvalFrameEx () #10 0x00000001006db3e3 in fast_function () #11 0x00000001006d809d in PyEval_EvalFrameEx () #12 0x00000001006db3e3 in fast_function () #13 0x00000001006d809d in PyEval_EvalFrameEx () #14 0x00000001006db2a7 in PyEval_EvalCodeEx () #15 0x000000010066858b in function_call () #16 0x000000010063fbe1 in PyObject_Call () #17 0x0000000100651a17 in instancemethod_call () #18 0x000000010063fbe1 in PyObject_Call () #19 0x00000001006d2d94 in PyEval_CallObjectWithKeywords () #20 0x00000001007106f2 in t_bootstrap () #21 0x00007fff932508bf in _pthread_start () #22 0x00007fff93253b75 in thread_start () Thread 1 (process 26409): #0 0x00007fff8fb27168 in wait4 () #1 0x00007fff932065f5 in system () #2 0x000000010216f226 in TUnixSystem::StackTrace () #3 0x000000010216cfb7 in TUnixSystem::DispatchSignals () #4 #5 0x000000010070eed0 in collect () #6 0x000000010070f81d in _PyObject_GC_Malloc () #7 0x000000010070f887 in _PyObject_GC_NewVar () #8 0x00000001006927c8 in PyTuple_New () #9 0x0000000100ba6f90 in _convert_from_array_descr () #10 0x0000000100b42ff5 in PyArray_DescrConverter () #11 0x00000001006eabc6 in convertsimple () #12 0x00000001006eb546 in convertitem () #13 0x00000001006eb8da in vgetargskeywords () #14 0x00000001006ebcbd in _PyArg_ParseTupleAndKeywords_SizeT () #15 0x0000000100b69054 in array_zeros () #16 0x00000001006d7feb in PyEval_EvalFrameEx () #17 0x00000001006db3e3 in fast_function () #18 0x00000001006d809d in PyEval_EvalFrameEx () #19 0x00000001006db3e3 in fast_function () #20 0x00000001006d809d in PyEval_EvalFrameEx () #21 0x00000001006db2a7 in PyEval_EvalCodeEx () #22 0x00000001006db326 in PyEval_EvalCode () #23 0x00000001006f9af4 in PyRun_FileExFlags () #24 0x00000001006fada8 in PyRun_SimpleFileExFlags () #25 0x000000010070e16a in Py_Main () #26 0x0000000100631f14 in ?? () =========================================================== The lines below might hint at the cause of the crash. If they do not help you then please submit a bug report at http://root.cern.ch/bugs. Please post the ENTIRE stack trace from above as an attachment in addition to anything else that might help us fixing this issue. =========================================================== #5 0x000000010070eed0 in collect () #6 0x000000010070f81d in _PyObject_GC_Malloc () #7 0x000000010070f887 in _PyObject_GC_NewVar () #8 0x00000001006927c8 in PyTuple_New () #9 0x0000000100ba6f90 in _convert_from_array_descr () #10 0x0000000100b42ff5 in PyArray_DescrConverter () #11 0x00000001006eabc6 in convertsimple () #12 0x00000001006eb546 in convertitem () #13 0x00000001006eb8da in vgetargskeywords () #14 0x00000001006ebcbd in _PyArg_ParseTupleAndKeywords_SizeT () #15 0x0000000100b69054 in array_zeros () #16 0x00000001006d7feb in PyEval_EvalFrameEx () #17 0x00000001006db3e3 in fast_function () #18 0x00000001006d809d in PyEval_EvalFrameEx () #19 0x00000001006db3e3 in fast_function () #20 0x00000001006d809d in PyEval_EvalFrameEx () #21 0x00000001006db2a7 in PyEval_EvalCodeEx () #22 0x00000001006db326 in PyEval_EvalCode () #23 0x00000001006f9af4 in PyRun_FileExFlags () #24 0x00000001006fada8 in PyRun_SimpleFileExFlags () #25 0x000000010070e16a in Py_Main () #26 0x0000000100631f14 in ?? () ===========================================================