ERROR while trying to read a tree to RooDataSet

Hello,

When I was trying to read a tree using the code attached, the following information appeared. I don’t know what is wrong with it. Could anyone please help me? Thank you.

Cheers,
Fangzhou
*** Break *** segmentation violation
(no debugging symbols found)
Using host libthread_db library “/lib/tls/libthread_db.so.1”.
Attaching to program: /proc/24416/exe, process 24416
(no debugging symbols found)…done.
(no debugging symbols found)…done.
[Thread debugging using libthread_db enabled]
[New Thread -151247168 (LWP 24416)]
(no debugging symbols found)…done.
(no debugging symbols found)…done.
(no debugging symbols found)…done.
(no debugging symbols found)…done.
(no debugging symbols found)…done.
(no debugging symbols found)…done.
0x009c67a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1 0x065c9d23 in __waitpid_nocancel () from /lib/tls/libc.so.6
#2 0x065737a9 in do_system () from /lib/tls/libc.so.6
#3 0x0099698d in system () from /lib/tls/libpthread.so.0
#4 0x002e2d67 in TUnixSystem::Exec () from /home/liuk/Utilities/root/lib/libCore.so
#5 0x002e87f8 in TUnixSystem::StackTrace () from /home/liuk/Utilities/root/lib/libCore.so
#6 0x002e5436 in TUnixSystem::DispatchSignals () from /home/liuk/Utilities/root/lib/libCore.so
#7 0x002e54c4 in SigHandler () from /home/liuk/Utilities/root/lib/libCore.so
#8 0x002e4709 in sighandler () from /home/liuk/Utilities/root/lib/libCore.so
#9
#10 0x01a43252 in RooTreeData::loadValues () from /home/liuk/Utilities/root/lib/libRooFitCore.so
#11 0x01a43cb4 in RooTreeData::RooTreeData$base ()
from /home/liuk/Utilities/root/lib/libRooFitCore.so
#12 0x019923cd in RooDataSet::RooDataSet () from /home/liuk/Utilities/root/lib/libRooFitCore.so
#13 0x01a96129 in G__G__RooFitCore1_177_0_7 () from /home/liuk/Utilities/root/lib/libRooFitCore.so
#14 0x00a1a41b in Cint::G__ExceptionWrapper () from /home/liuk/Utilities/root/lib/libCint.so
#15 0x00aae5b0 in G__execute_call () from /home/liuk/Utilities/root/lib/libCint.so
#16 0x00aae8c2 in G__call_cppfunc () from /home/liuk/Utilities/root/lib/libCint.so
#17 0x00a90077 in G__interpret_func () from /home/liuk/Utilities/root/lib/libCint.so
#18 0x00a7ec28 in G__getfunction () from /home/liuk/Utilities/root/lib/libCint.so
#19 0x00a57127 in G__define_var () from /home/liuk/Utilities/root/lib/libCint.so
#20 0x00ad9bcc in G__exec_statement () from /home/liuk/Utilities/root/lib/libCint.so
#21 0x00a91b9f in G__interpret_func () from /home/liuk/Utilities/root/lib/libCint.so
#22 0x00a7ea6a in G__getfunction () from /home/liuk/Utilities/root/lib/libCint.so
#23 0x00a62f70 in G__getitem () from /home/liuk/Utilities/root/lib/libCint.so
#24 0x00a65bbb in G__getexpr () from /home/liuk/Utilities/root/lib/libCint.so
#25 0x00a6eed0 in G__calc_internal () from /home/liuk/Utilities/root/lib/libCint.so
#26 0x00aec1b0 in G__process_cmd () from /home/liuk/Utilities/root/lib/libCint.so
#27 0x002d218b in TCint::ProcessLine () from /home/liuk/Utilities/root/lib/libCore.so
#28 0x002d230c in TCint::ProcessLineSynch () from /home/liuk/Utilities/root/lib/libCore.so
#29 0x00218aba in TApplication::ExecuteFile () from /home/liuk/Utilities/root/lib/libCore.so
#30 0x00218e46 in TApplication::ProcessFile () from /home/liuk/Utilities/root/lib/libCore.so
#31 0x00216d46 in TApplication::ProcessLine () from /home/liuk/Utilities/root/lib/libCore.so
#32 0x0086aec2 in TRint::HandleTermInput () from /home/liuk/Utilities/root/lib/libRint.so
#33 0x00869518 in TTermInputHandler::Notify () from /home/liuk/Utilities/root/lib/libRint.so
#34 0x0086b7b6 in TTermInputHandler::ReadNotify () from /home/liuk/Utilities/root/lib/libRint.so
#35 0x002e16f2 in TUnixSystem::CheckDescriptors () from /home/liuk/Utilities/root/lib/libCore.so
#36 0x002e5914 in TUnixSystem::DispatchOneEvent () from /home/liuk/Utilities/root/lib/libCore.so
#37 0x0026efb8 in TSystem::InnerLoop () from /home/liuk/Utilities/root/lib/libCore.so
#38 0x0026ed7f in TSystem::Run () from /home/liuk/Utilities/root/lib/libCore.so
#39 0x00216f96 in TApplication::Run () from /home/liuk/Utilities/root/lib/libCore.so
#40 0x00869c96 in TRint::Run () from /home/liuk/Utilities/root/lib/libRint.so
#41 0x08048d46 in main ()
Root > Function Onsel_MCMU() busy flag cleared
Onsel_MCMU.C (427 Bytes)

Please post RooFit questions at the “Stats and Math Tools” forum.

Rene

I’m sorry…