Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Possible memory corruption in cling #15511

Open
1 task done
pikacic opened this issue May 14, 2024 · 1 comment
Open
1 task done

Possible memory corruption in cling #15511

pikacic opened this issue May 14, 2024 · 1 comment
Assignees
@vgvassilev @devajithvs
Labels
bug experiment Affects an experiment / reported by its software & computimng experts

Comments

@pikacic
Copy link

pikacic commented May 14, 2024 •
edited

Check duplicate issues.

  • Checked for duplicates

Description

Since the switch to ROOT 6.30/02 (LCG 105) we started to experience segfaults related to dictionaries. The most straightforward reproducer is just a #include of a specific header

What makes me think that there may be a memory corruption is that I tried to isolate which part of that header was triggering the segfault and I noticed that (on a subset of the header) I could make the segfault appear and disappear just shuffling some class definitions.

I also find weird that the segfault seems to be related to an atexit function in libCling.so:

===========================================================
#10 0x00007f05fa744a7e in ?? ()
#11 0x00007ffd45bee240 in ?? ()
#12 0x00007f060b10d028 in ?? ()
#13 0x00007ffd45bee270 in ?? ()
#14 0x00007f05fa745920 in ?? ()
#15 0x00007f060b10c1a0 in ?? ()
#16 0x00007ffd45bee260 in ?? ()
#17 0x00007ffd45bee2c0 in ?? ()
#18 0x00007f05fa745b0d in ?? ()
#19 0x000000000204fc10 in ?? ()
#20 0x00000000133b2cc8 in ?? ()
#21 0x00000000133b2cc0 in ?? ()
#22 0x00007f060309016c in (anonymous namespace)::local_cxa_atexit(void (*)(void*), void*, cling::Interpreter*) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#23 0x00007ffd45bee260 in ?? ()
#24 0x00007f060b10d110 in ?? ()
#25 0x00007f060b10d020 in ?? ()
#26 0x00007f0607fe2e7a in ?? () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#27 0x00007f05fa741095 in ?? ()
#28 0x00007f05fa740f20 in ?? ()
#29 0x00007f060471d882 in (anonymous namespace)::GenericLLVMIRPlatformSupport::initialize(llvm::orc::JITDylib&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#30 0x00007f06031155f3 in cling::IncrementalExecutor::runStaticInitializersOnce(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#31 0x00007f0603092698 in cling::Interpreter::executeTransaction(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#32 0x00007f0603125b4a in cling::IncrementalParser::commitTransaction(llvm::PointerIntPair<cling::Transaction*, 2u, cling::IncrementalParser::EParseResult, llvm::PointerLikeTypeTraits<cling::Transaction*>, llvm::PointerIntPairInfo<cling::Transaction*, 2u, llvm::PointerLikeTypeTraits<cling::Transaction*> > >&, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#33 0x00007f0603128d98 in cling::IncrementalParser::Compile(llvm::StringRef, cling::CompilationOptions const&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#34 0x00007f06030933dc in cling::Interpreter::DeclareInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions const&, cling::Transaction**) const () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#35 0x00007f0603095986 in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#36 0x00007f06031781a7 in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#37 0x00007f0602e677f7 in HandleInterpreterException (metaProcessor=0x308b020, input_line=0x4194ba0 "#line 1 "ROOT_prompt_0"n#include <LoKi/ParticleCuts.h>", compRes=
0x7ffd45beeafc: cling::Interpreter::kSuccess, result=0x7ffd45beeb00) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/metacling/src/TCling.cxx:2436
===========================================================

Reproducer

With the test_env.sh included in test_env.zip on lxplus.cern.ch:

❯ hx test_env.sh
-bash: hx: command not found
marcocle in 🌐 lxplus913 in ~/tmp/root-issue
❯ vim test_env.sh
marcocle in 🌐 lxplus913 in ~/tmp/root-issue took 2m35s
❯ bash
marcocle in 🌐 lxplus913 in ~/tmp/root-issue
❯ . test_env.sh
marcocle in 🌐 lxplus913 in ~/tmp/root-issue
❯ root
   ------------------------------------------------------------------
  | Welcome to ROOT 6.30/04                        https://root.cern |
  | (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
  | Built for linuxx8664gcc on Feb 03 2024, 17:20:15                 |
  | From heads/master@tags/v6-30-04                                  |
  | With g++ (GCC) 13.1.0                                            |
  | Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q'  |
   ------------------------------------------------------------------

root [0] #include <LoKi/ParticleCuts.h>

 *** Break *** segmentation violation



===========================================================
There was a crash (kSigSegmentationViolation).
This is the entire stack trace of all threads:
===========================================================
#0  0x00007f060a0d89fa in wait4 () from /lib64/libc.so.6
#1  0x00007f060a04b243 in do_system () from /lib64/libc.so.6
#2  0x00007f060ac59eb2 in TUnixSystem::Exec (this=0x1fbd500, shellcmd=0x9457020 "/cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/etc/gdb-backtrace.sh 212891 1>&2") at /build/jenkins/workspace/lcg_release_pip
#3  0x00007f060ac5a753 in TUnixSystem::StackTrace (this=0x1fbd500) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:2411
#4  0x00007f060ac5e16c in TUnixSystem::DispatchSignals (this=0x1fbd500, sig=kSigSegmentationViolation) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:3631
#5  0x00007f060ac560e0 in SigHandler (sig=kSigSegmentationViolation) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:402
#6  0x00007f060ac5e06f in sighandler (sig=11) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:3602
#7  0x00007f060ac47a32 in textinput::TerminalConfigUnix::HandleSignal (this=0x7f060af75d80 <textinput::TerminalConfigUnix::Get()::s>, signum=11) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.
#8  0x00007f060ac47736 in (anonymous namespace)::TerminalConfigUnix__handleSignal (signum=11) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/textinput/src/textinput/TerminalConfigUnix.
#9  <signal handler called>
#10 0x00007f05fa744a7e in ?? ()
#11 0x00007ffd45bee240 in ?? ()
#12 0x00007f060b10d028 in ?? ()
#13 0x00007ffd45bee270 in ?? ()
#14 0x00007f05fa745920 in ?? ()
#15 0x00007f060b10c1a0 in ?? ()
#16 0x00007ffd45bee260 in ?? ()
#17 0x00007ffd45bee2c0 in ?? ()
#18 0x00007f05fa745b0d in ?? ()
#19 0x000000000204fc10 in ?? ()
#20 0x00000000133b2cc8 in ?? ()
#21 0x00000000133b2cc0 in ?? ()
#22 0x00007f060309016c in (anonymous namespace)::local_cxa_atexit(void (*)(void*), void*, cling::Interpreter*) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#23 0x00007ffd45bee260 in ?? ()
#24 0x00007f060b10d110 in ?? ()
#25 0x00007f060b10d020 in ?? ()
#26 0x00007f0607fe2e7a in ?? () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#27 0x00007f05fa741095 in ?? ()
#28 0x00007f05fa740f20 in ?? ()
#29 0x00007f060471d882 in (anonymous namespace)::GenericLLVMIRPlatformSupport::initialize(llvm::orc::JITDylib&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#30 0x00007f06031155f3 in cling::IncrementalExecutor::runStaticInitializersOnce(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#31 0x00007f0603092698 in cling::Interpreter::executeTransaction(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#32 0x00007f0603125b4a in cling::IncrementalParser::commitTransaction(llvm::PointerIntPair<cling::Transaction*, 2u, cling::IncrementalParser::EParseResult, llvm::PointerLikeTypeTraits<cling::Transaction*>, llvm::PointerIntPairInfo<cling
#33 0x00007f0603128d98 in cling::IncrementalParser::Compile(llvm::StringRef, cling::CompilationOptions const&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#34 0x00007f06030933dc in cling::Interpreter::DeclareInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions const&, cling::Transaction**) const () from /cvmfs/lhcb.cern
#35 0x00007f0603095986 in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6
#36 0x00007f06031781a7 in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#37 0x00007f0602e677f7 in HandleInterpreterException (metaProcessor=0x308b020, input_line=0x4194ba0 "#line 1 \"ROOT_prompt_0\"\n#include <LoKi/ParticleCuts.h>", compRes=
0x7ffd45beeafc: cling::Interpreter::kSuccess, result=0x7ffd45beeb00) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/metacling/src/TCling.cxx:2436
#38 0x00007f0602e683c4 in TCling::ProcessLine (this=0x20461a0, line=0x412ae70 "#line 1 \"ROOT_prompt_0\"\n#include <LoKi/ParticleCuts.h>", error=0x7ffd45beeedc) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.0
#39 0x00007f060aab78bf in TApplication::ProcessLine (this=0x200fe60, line=0x412ae70 "#line 1 \"ROOT_prompt_0\"\n#include <LoKi/ParticleCuts.h>", sync=false, err=0x7ffd45beeedc) at /build/jenkins/workspace/lcg_release_pipeline/build/proj
#40 0x00007f060b14a763 in TRint::ProcessLineNr (this=0x200fe60, filestem=0x7f060b15c757 "ROOT_prompt_", line=0x419af40 "#include <LoKi/ParticleCuts.h>", error=0x7ffd45beeedc) at /build/jenkins/workspace/lcg_release_pipeline/build/projec
#41 0x00007f060b149fa1 in TRint::HandleTermInput (this=0x200fe60) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/rint/src/TRint.cxx:648
#42 0x00007f060b1477cd in TTermInputHandler::Notify (this=0x413b570) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/rint/src/TRint.cxx:133
#43 0x00007f060b14c187 in TTermInputHandler::ReadNotify (this=0x413b570) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/rint/src/TRint.cxx:125
#44 0x00007f060ac58367 in TUnixSystem::CheckDescriptors (this=0x1fbd500) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:1322
#45 0x00007f060ac577bc in TUnixSystem::DispatchOneEvent (this=0x1fbd500, pendingOnly=false) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/unix/src/TUnixSystem.cxx:1077
#46 0x00007f060ab4290f in TSystem::InnerLoop (this=0x1fbd500) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/base/src/TSystem.cxx:390
#47 0x00007f060ab426a4 in TSystem::Run (this=0x1fbd500) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/base/src/TSystem.cxx:340
#48 0x00007f060aab8367 in TApplication::Run (this=0x200fe60, retrn=false) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/base/src/TApplication.cxx:1890
#49 0x00007f060b1492e2 in TRint::Run (this=0x200fe60, retrn=false) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/rint/src/TRint.cxx:501
#50 0x0000000000401447 in main (argc=1, argv=0x7ffd45bf1438) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/main/src/rmain.cxx:84
===========================================================


The lines below might hint at the cause of the crash. If you see question
marks as part of the stack trace, try to recompile with debugging information
enabled and export CLING_DEBUG=1 environment variable before running.
You may get help by asking at the ROOT forum https://root.cern/forum
preferably using the command (.forum bug) in the ROOT prompt.
Only if you are really convinced it is a bug in ROOT then please submit a
report at https://root.cern/bugs or (preferably) using the command (.gh bug) in
the ROOT prompt. Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#10 0x00007f05fa744a7e in ?? ()
#11 0x00007ffd45bee240 in ?? ()
#12 0x00007f060b10d028 in ?? ()
#13 0x00007ffd45bee270 in ?? ()
#14 0x00007f05fa745920 in ?? ()
#15 0x00007f060b10c1a0 in ?? ()
#16 0x00007ffd45bee260 in ?? ()
#17 0x00007ffd45bee2c0 in ?? ()
#18 0x00007f05fa745b0d in ?? ()
#19 0x000000000204fc10 in ?? ()
#20 0x00000000133b2cc8 in ?? ()
#21 0x00000000133b2cc0 in ?? ()
#22 0x00007f060309016c in (anonymous namespace)::local_cxa_atexit(void (*)(void*), void*, cling::Interpreter*) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#23 0x00007ffd45bee260 in ?? ()
#24 0x00007f060b10d110 in ?? ()
#25 0x00007f060b10d020 in ?? ()
#26 0x00007f0607fe2e7a in ?? () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#27 0x00007f05fa741095 in ?? ()
#28 0x00007f05fa740f20 in ?? ()
#29 0x00007f060471d882 in (anonymous namespace)::GenericLLVMIRPlatformSupport::initialize(llvm::orc::JITDylib&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#30 0x00007f06031155f3 in cling::IncrementalExecutor::runStaticInitializersOnce(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#31 0x00007f0603092698 in cling::Interpreter::executeTransaction(cling::Transaction&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#32 0x00007f0603125b4a in cling::IncrementalParser::commitTransaction(llvm::PointerIntPair<cling::Transaction*, 2u, cling::IncrementalParser::EParseResult, llvm::PointerLikeTypeTraits<cling::Transaction*>, llvm::PointerIntPairInfo<cling::Transaction*, 2u, llvm::PointerLikeTypeTraits<cling::Transaction*> > >&, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#33 0x00007f0603128d98 in cling::IncrementalParser::Compile(llvm::StringRef, cling::CompilationOptions const&) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#34 0x00007f06030933dc in cling::Interpreter::DeclareInternal(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::CompilationOptions const&, cling::Transaction**) const () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#35 0x00007f0603095986 in cling::Interpreter::process(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, cling::Value*, cling::Transaction**, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#36 0x00007f06031781a7 in cling::MetaProcessor::process(llvm::StringRef, cling::Interpreter::CompilationResult&, cling::Value*, bool) () from /cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/lib/libCling.so
#37 0x00007f0602e677f7 in HandleInterpreterException (metaProcessor=0x308b020, input_line=0x4194ba0 "#line 1 "ROOT_prompt_0"n#include <LoKi/ParticleCuts.h>", compRes=
0x7ffd45beeafc: cling::Interpreter::kSuccess, result=0x7ffd45beeb00) at /build/jenkins/workspace/lcg_release_pipeline/build/projects/ROOT-6.30.04/src/ROOT/6.30.04/core/metacling/src/TCling.cxx:2436
===========================================================


Root > .q

ROOT version

❯ which root
/cvmfs/lhcb.cern.ch/lib/lcg/releases/ROOT/6.30.04-dd2db/x86_64-el9-gcc13-dbg/bin/root

   ------------------------------------------------------------------
  | Welcome to ROOT 6.30/04                        https://root.cern |
  | (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
  | Built for linuxx8664gcc on Feb 03 2024, 17:20:15                 |
  | From heads/master@tags/v6-30-04                                  |
  | With g++ (GCC) 13.1.0                                            |
  | Try '.help'/'.?', '.demo', '.license', '.credits', '.quit'/'.q'  |
   ------------------------------------------------------------------

Installation method

LCG builds

Operating system

Linux (EL9)

Additional context

No response
@pikacic pikacic added the bug label May 14, 2024
@hahnjo hahnjo added the experiment Affects an experiment / reported by its software & computimng experts label May 15, 2024
@devajithvs
Copy link
Contributor

A stripped down version of the header that segfaults:

// test.h
#include "LoKi/Particles.h"

using EQUALTO = LoKi::EqualToValue<const LHCb::Particle*>;
const auto TRTYPE = LoKi::Particles::TrackType{};

// Remove ANY of the lines below and the segfault disappears.
const auto ISDOWN = EQUALTO{TRTYPE, LHCb::Track::Types::Downstream};
const auto ISLONG = EQUALTO{TRTYPE, LHCb::Track::Types::Long};
const auto MUONBDT_CATBOOST = LoKi::Particles::MuonMVA2{};
const auto ISMUONPID = LoKi::Particles::IsMuon{};
const auto ISMUONLOOSE = LoKi::Particles::IsMuonLoose{};
const auto ISMUONTIGHT = LoKi::Particles::IsMuonTight{};
const auto ISUP = EQUALTO{TRTYPE, LHCb::Track::Types::Upstream};
const auto KEY = LoKi::Particles::Key{};
const auto M = LoKi::Particles::Mass{};
const auto LV01 = LoKi::Particles::DecayAngle{1};
const auto LV02 = LoKi::Particles::DecayAngle{2};
const auto LV03 = LoKi::Particles::DecayAngle{3};
const auto LV04 = LoKi::Particles::DecayAngle{4};
const auto M0 = LoKi::Particles::Mass{};
const auto M1 = LoKi::Particles::InvariantMass{1};
const auto M12 = LoKi::Particles::InvariantMass{1, 2};
const auto M13 = LoKi::Particles::InvariantMass{1, 3};
const auto M14 = LoKi::Particles::InvariantMass{1, 4};
const auto M2 = LoKi::Particles::InvariantMass{2};
const auto M23 = LoKi::Particles::InvariantMass{2, 3};
const auto M24 = LoKi::Particles::InvariantMass{2, 4};
const auto M34 = LoKi::Particles::InvariantMass{3, 4};
const auto MM = LoKi::Particles::MeasuredMass{};

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@vgvassilev vgvassilev

@devajithvs devajithvs

Labels
bug experiment Affects an experiment / reported by its software & computimng experts
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
4 participants
@pikacic @hahnjo @vgvassilev @devajithvs