lucas@lucas-Rig:~/CMS/Projects$ python reproducer.py TClass::Init:0: RuntimeWarning: no dictionary for class edm::Hash<1> is available TClass::Init:0: RuntimeWarning: no dictionary for class edm::ParameterSetBlob is available TClass::Init:0: RuntimeWarning: no dictionary for class edm::ProcessHistory is available TClass::Init:0: RuntimeWarning: no dictionary for class edm::ProcessConfiguration is available TClass::Init:0: RuntimeWarning: no dictionary for class pair,edm::ParameterSetBlob> is available 1003189 *** Break *** segmentation violation =========================================================== There was a crash. This is the entire stack trace of all threads: =========================================================== Thread 2 (Thread 0x7efbef5f0700 (LWP 31525)): #0 0x00007efbfeed76d6 in futex_abstimed_wait_cancelable (private=0, abstime=0x0, expected=0, futex_word=0x565557c63700) at ../sysdeps/unix/sysv/linux/futex-internal.h:205 #1 do_futex_wait (sem=sem entry=0x565557c63700, abstime=0x0) at sem_waitcommon.c:111 #2 0x00007efbfeed77c8 in __new_sem_wait_slow (sem=0x565557c63700, abstime=0x0) at sem_waitcommon.c:181 #3 0x00005655556e9711 in ?? () #4 0x0000565555648e8a in PyEval_EvalFrameEx () #5 0x000056555564652a in PyEval_EvalCodeEx () #6 0x000056555566203c in ?? () #7 0x0000565555631f1e in PyObject_Call () #8 0x000056555564b2d5 in PyEval_EvalFrameEx () #9 0x000056555564dbe2 in PyEval_EvalFrameEx () #10 0x000056555564dbe2 in PyEval_EvalFrameEx () #11 0x000056555564652a in PyEval_EvalCodeEx () #12 0x0000565555661d99 in ?? () #13 0x000056555567a95e in ?? () #14 0x0000565555631f1e in PyObject_Call () #15 0x00005655556522f0 in PyEval_CallObjectWithKeywords () #16 0x00005655556e6782 in ?? () #17 0x00007efbfeece6db in start_thread (arg=0x7efbef5f0700) at pthread_create.c:463 #18 0x00007efbff20788f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7efbff6de740 (LWP 31499)): #0 0x00007efbff1ca6c2 in __GI___waitpid (pid=31528, stat_loc=stat_loc entry=0x7ffbffff75a8, options=options entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30 #1 0x00007efbff135067 in do_system (line=) at ../sysdeps/posix/system.c:149 #2 0x00007efbfc63a203 in TUnixSystem::Exec (shellcmd=, this=0x565557b4f2b0) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:2106 #3 TUnixSystem::StackTrace (this=0x565557b4f2b0) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:2396 #4 0x00007efbfc63cbf4 in TUnixSystem::DispatchSignals (this=0x565557b4f2b0, sig=kSigSegmentationViolation) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:3627 #5 #6 0x00007efbff507ce5 in ?? () #7 0x0000000000000000 in ?? () =========================================================== The lines below might hint at the cause of the crash. You may get help by asking at the ROOT forum http://root.cern.ch/forum Only if you are really convinced it is a bug in ROOT then please submit a 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. =========================================================== #6 0x00007efbff507ce5 in ?? () #7 0x0000000000000000 in ?? () =========================================================== Traceback (most recent call last): File "reproducer.py", line 13, in print rdf_filter_count.GetValue() SystemError: const ULong64_t& ROOT::RDF::RResultPtr::GetValue() => problem in C++; program state has been reset *** Break *** segmentation violation =========================================================== There was a crash. This is the entire stack trace of all threads: =========================================================== #0 0x00007efbff1ca6c2 in __GI___waitpid (pid=31651, stat_loc=stat_loc entry=0x7ffbffff74a8, options=options entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30 #1 0x00007efbff135067 in do_system (line=) at ../sysdeps/posix/system.c:149 #2 0x00007efbfc63a203 in TUnixSystem::Exec (shellcmd=, this=0x565557b4f2b0) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:2106 #3 TUnixSystem::StackTrace (this=0x565557b4f2b0) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:2396 #4 0x00007efbfc63cbf4 in TUnixSystem::DispatchSignals (this=0x565557b4f2b0, sig=kSigSegmentationViolation) at /home/lucas/CMS/Software/root/core/unix/src/TUnixSystem.cxx:3627 #5 #6 0x00007efbee47aa26 in std::_Deque_iterator::_Deque_iterator (__y=0x0, __x=0x56555ccd19a8, this=0x7ffbffff9e60) at /usr/include/c++/7/bits/stl_deque.h:146 #7 std::_Deque_iterator::_M_const_cast (this=, this=) at /usr/include/c++/7/bits/stl_deque.h:157 #8 std::deque >::erase (this=0x7ffbffffa148, __position=...) at /usr/include/c++/7/bits/stl_deque.h:1784 #9 TTreeReader::DeregisterValueReader (this=0x7ffbffffa0a0, reader=reader entry=0x56555cb5fc30) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReader.cxx:652 #10 0x00007efbee485423 in ROOT::Internal::TTreeReaderValueBase::~TTreeReaderValueBase (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderValue.cxx:116 #11 0x00007efbee74b0d7 in TTreeReaderValue::~TTreeReaderValue (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/root-nightly-Aug1319/include/TTreeReaderValue.h:140 #12 TTreeReaderValue::~TTreeReaderValue (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/root-nightly-Aug1319/include/TTreeReaderValue.h:140 #13 0x00007efbee4752fd in std::default_delete::operator() (this=, __ptr=) at /usr/include/c++/7/bits/unique_ptr.h:78 #14 std::unique_ptr >::~unique_ptr (this=0x56555bf6f090, __in_chrg=) at /usr/include/c++/7/bits/unique_ptr.h:268 #15 (anonymous namespace)::TUIntOrIntReader<(anonymous namespace)::TObjectArrayReader>::~TUIntOrIntReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:199 #16 (anonymous namespace)::TArrayParameterSizeReader::~TArrayParameterSizeReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:234 #17 (anonymous namespace)::TArrayParameterSizeReader::~TArrayParameterSizeReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:234 #18 0x00007efbff50c2bb in ?? () #19 0x00007ffbffff9f00 in ?? () #20 0x000056555bf6f080 in ?? () #21 0x000056555bf6f080 in ?? () #22 0x000056555c4295e8 in ?? () #23 0x00007ffbffff9f40 in ?? () #24 0x00007efbff50dfa6 in ?? () #25 0x000056555afb0878 in ?? () #26 0x00007efbff50c290 in ?? () #27 0x000056555c4295e8 in ?? () #28 0x000056555c4295e8 in ?? () #29 0x000056555c4295e8 in ?? () #30 0x000056555c4295e8 in ?? () #31 0x00007ffbffff9f60 in ?? () #32 0x00007efbff50df2c in ?? () #33 0x00007ffbffff9f80 in ?? () #34 0x000056555c4295e8 in ?? () #35 0x00007ffbffff9f80 in ?? () #36 0x00007efbff509add in ?? () #37 0x000056555c429560 in ?? () #38 0x000056555c429560 in ?? () #39 0x00007ffbffff9fa0 in ?? () #40 0x00007efbff5089bc in ?? () #41 0x00007ffbffff9fb0 in ?? () #42 0x000056555c429560 in ?? () #43 0x00007ffbffff9fc0 in ?? () #44 0x00007efbff50898c in ?? () #45 0x00007ffbffff9fd0 in ?? () #46 0x000056555c429560 in ?? () #47 0x00007ffbffff9ff0 in ?? () #48 0x00007efbff508940 in ?? () #49 0x00007ffbffff9ff0 in ?? () #50 0x00007efbff5100dc in ?? () #51 0x000056555c429560 in ?? () #52 0x000056555c429560 in ?? () #53 0x00007ffbffffa020 in ?? () #54 0x00007efbff50c27b in ?? () #55 0x00007ffbffffa020 in ?? () #56 0x000056555c429560 in ?? () #57 0x000056555c429560 in ?? () #58 0x000056555c2a3d38 in ?? () #59 0x00007ffbffffa060 in ?? () #60 0x00007efbff50dda6 in ?? () #61 0x0000000000000000 in ?? () =========================================================== The lines below might hint at the cause of the crash. You may get help by asking at the ROOT forum http://root.cern.ch/forum Only if you are really convinced it is a bug in ROOT then please submit a 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. =========================================================== #6 0x00007efbee47aa26 in std::_Deque_iterator::_Deque_iterator (__y=0x0, __x=0x56555ccd19a8, this=0x7ffbffff9e60) at /usr/include/c++/7/bits/stl_deque.h:146 #7 std::_Deque_iterator::_M_const_cast (this=, this=) at /usr/include/c++/7/bits/stl_deque.h:157 #8 std::deque >::erase (this=0x7ffbffffa148, __position=...) at /usr/include/c++/7/bits/stl_deque.h:1784 #9 TTreeReader::DeregisterValueReader (this=0x7ffbffffa0a0, reader=reader entry=0x56555cb5fc30) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReader.cxx:652 #10 0x00007efbee485423 in ROOT::Internal::TTreeReaderValueBase::~TTreeReaderValueBase (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderValue.cxx:116 #11 0x00007efbee74b0d7 in TTreeReaderValue::~TTreeReaderValue (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/root-nightly-Aug1319/include/TTreeReaderValue.h:140 #12 TTreeReaderValue::~TTreeReaderValue (this=0x56555cb5fc30, __in_chrg=) at /home/lucas/CMS/root-nightly-Aug1319/include/TTreeReaderValue.h:140 #13 0x00007efbee4752fd in std::default_delete::operator() (this=, __ptr=) at /usr/include/c++/7/bits/unique_ptr.h:78 #14 std::unique_ptr >::~unique_ptr (this=0x56555bf6f090, __in_chrg=) at /usr/include/c++/7/bits/unique_ptr.h:268 #15 (anonymous namespace)::TUIntOrIntReader<(anonymous namespace)::TObjectArrayReader>::~TUIntOrIntReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:199 #16 (anonymous namespace)::TArrayParameterSizeReader::~TArrayParameterSizeReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:234 #17 (anonymous namespace)::TArrayParameterSizeReader::~TArrayParameterSizeReader (this=0x56555bf6f080, __in_chrg=) at /home/lucas/CMS/Software/root/tree/treeplayer/src/TTreeReaderArray.cxx:234 #18 0x00007efbff50c2bb in ?? () #19 0x00007ffbffff9f00 in ?? () #20 0x000056555bf6f080 in ?? () #21 0x000056555bf6f080 in ?? () #22 0x000056555c4295e8 in ?? () #23 0x00007ffbffff9f40 in ?? () #24 0x00007efbff50dfa6 in ?? () #25 0x000056555afb0878 in ?? () #26 0x00007efbff50c290 in ?? () #27 0x000056555c4295e8 in ?? () #28 0x000056555c4295e8 in ?? () #29 0x000056555c4295e8 in ?? () #30 0x000056555c4295e8 in ?? () #31 0x00007ffbffff9f60 in ?? () #32 0x00007efbff50df2c in ?? () #33 0x00007ffbffff9f80 in ?? () #34 0x000056555c4295e8 in ?? () #35 0x00007ffbffff9f80 in ?? () #36 0x00007efbff509add in ?? () #37 0x000056555c429560 in ?? () #38 0x000056555c429560 in ?? () #39 0x00007ffbffff9fa0 in ?? () #40 0x00007efbff5089bc in ?? () #41 0x00007ffbffff9fb0 in ?? () #42 0x000056555c429560 in ?? () #43 0x00007ffbffff9fc0 in ?? () #44 0x00007efbff50898c in ?? () #45 0x00007ffbffff9fd0 in ?? () #46 0x000056555c429560 in ?? () #47 0x00007ffbffff9ff0 in ?? () #48 0x00007efbff508940 in ?? () #49 0x00007ffbffff9ff0 in ?? () #50 0x00007efbff5100dc in ?? () #51 0x000056555c429560 in ?? () #52 0x000056555c429560 in ?? () #53 0x00007ffbffffa020 in ?? () #54 0x00007efbff50c27b in ?? () #55 0x00007ffbffffa020 in ?? () #56 0x000056555c429560 in ?? () #57 0x000056555c429560 in ?? () #58 0x000056555c2a3d38 in ?? () #59 0x00007ffbffffa060 in ?? () #60 0x00007efbff50dda6 in ?? () #61 0x0000000000000000 in ?? () ===========================================================