Generating events in simulation never complete

Brian_Huang · June 27, 2025, 11:30am

Hi guys, I want to run my simulation to generate events and create root file, I’m using macOS:15.5,
ROOT: 6.36.0,
Geant4: 11.2.0.
I have Xcode installed, and I’m running it from Terminal
Every time I try to run the simulation, it always gives me different errors such as:
1.

sim(82838,0x16db1b000) malloc: Heap corruption detected, free list is damaged at 0x6000015f5780
*** Incorrect guard value: 4550659104
sim(82838,0x16db1b000) malloc: *** set a breakpoint in malloc_error_break to debug
sim(82838,0x16dba7000) malloc: Heap corruption detected, free list is damaged at 0x60000161c780
*** Incorrect guard value: 0
sim(82838,0x16dba7000) malloc: *** set a breakpoint in malloc_error_break to debug
sim(82838,0x16d7d3000) malloc: Heap corruption detected, free list is damaged at 0x6000015f3f80
*** Incorrect guard value: 0
sim(82838,0x16d7d3000) malloc: *** set a breakpoint in malloc_error_break to debug

[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] (anonymous namespace)::EmptySubobjectMap::EmptySubobjectMap(clang::ASTContext const&, clang::CXXRecordDecl const*) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] clang::ASTContext::getASTRecordLayout(clang::RecordDecl const*) const (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] (anonymous namespace)::EmptySubobjectMap::EmptySubobjectMap(clang::ASTContext const&, clang::CXXRecordDecl const*) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] clang::ASTContext::getASTRecordLayout(clang::RecordDecl const*) const (no debug info)
 (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TBufferFile::WriteClassBuffer(TClass const*, void*) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TKey::TKey(TObject const*, char const*, int, TDirectory*) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TFile::CreateKey(TDirectory*, TObject const*, char const*, int) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TDirectoryFile::WriteTObject(TObject const*, char const*, char const*, int) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCore.so] TObject::Write(char const*, int, int) const (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TDirectoryFile::Write(char const*, int, int) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TFile::Write(char const*, int, int) (no debug info)
[/Users/brianhuang/Simulation/build/sim] Recorder::EndOfRecordingRun(G4Run const*) (no debug info)
[/Users/brianhuang/Simulation/build/sim] RunAction::EndOfRunAction(G4Run const*) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4RunManager::RunTermination() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4WorkerRunManager::RunTermination() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4RunManager::BeamOn(int, char const*, int) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4WorkerRunManager::DoWork() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4MTRunManagerKernel::StartThread(G4WorkerThread*) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] void* std::__1::__thread_proxy[abi:ne190102]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, void (*)(G4WorkerThread*), G4WorkerThread*>>(void*) (no debug info)
[/usr/lib/system/libsystem_pthread.dylib] _pthread_start (no debug info)
[/usr/lib/system/libsystem_pthread.dylib] thread_start (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] TClingBaseClassInfo::Offset(void*, bool) const (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCling.so] TClingClassInfo::GetBaseOffset(TClingClassInfo*, void*, bool) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCore.so] TClass::GetBaseClassOffset(TClass const*, void*, bool) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TBufferIO::WriteObjectAny(void const*, TClass const*, bool) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libCore.so] TList::Streamer(TBuffer&) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TKey::TKey(TObject const*, char const*, int, TDirectory*) (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TFile::WriteStreamerInfo() (no debug info)
[/opt/homebrew/Cellar/root/6.36.00/lib/root/libRIO.so] TFile::Write(char const*, int, int) (no debug info)
[/Users/brianhuang/Simulation/build/sim] Recorder::EndOfRecordingRun(G4Run const*) (no debug info)
[/Users/brianhuang/Simulation/build/sim] RunAction::EndOfRunAction(G4Run const*) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4RunManager::RunTermination() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4WorkerRunManager::RunTermination() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4RunManager::BeamOn(int, char const*, int) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4WorkerRunManager::DoWork() (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] G4MTRunManagerKernel::StartThread(G4WorkerThread*) (no debug info)
[/opt/GEANT4-v11.2.0/GEANT4-BUILD/BuildProducts/lib/libG4run.dylib] void* std::__1::__thread_proxy[abi:ne190102]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, void (*)(G4WorkerThread*), G4WorkerThread*>>(void*) (no debug info)
[/usr/lib/system/libsystem_pthread.dylib] _pthread_start (no debug info)
[/usr/lib/system/libsystem_pthread.dylib] thread_start (no debug info)
G4WT0 > Non-critical error: mutex lock failure in ~G4Cache<P15G4HadFinalState>. 
G4WT0 > If the RunManagerKernel has been deleted, it failed to delete an allocated resource
G4WT0 > and this destructor is being called after the statics were destroyed.
G4WT0 > Exception: [code: system:22] caught: mutex lock failed: Invalid argument

and sometimes it shows the error about segmentation violation and related to lib.Cling, Core, RIO… etc.

this problem has been bothering me for a while, anyone has an idea how to solve it? any tips or comments will be much appreciated, thanks!

pcanal · June 27, 2025, 5:28pm

To investigate further, I recommend you run you failing example with valgrind

valgrind --log-file=val.01.log --num-callers=50 --suppressions=$ROOTSYS/etc/valgrind-root.supp myexecutable myargs

Brian_Huang · June 28, 2025, 3:33pm

thanks for this suggestion, but I don’t think valgrind is compatible with macOS system :(( is there any recommendation I could follow?

yus · June 28, 2025, 10:30pm

Sure it is, check out e.g. How to Install Valgrind on Mac OS X

Brian_Huang · June 29, 2025, 4:05am

Hiii, I followed the instruction on the site you shared, and it gave me this message,

valgrind: Linux is required for this software.
Error: valgrind: An unsatisfied requirement failed this build.

It will take too long to start everything all over again with linux system…
Is there any way to diagnose the issue?

pcanal · July 8, 2025, 4:10pm

The next thing to try to run the failing example under the debugger (called lldb on MacOS). If you follow the instruction given by the first set of error messages you saw, if should find (one of) the problem(s). You may or may not need to rebuild ROOT and/or your code in debug mode.