Problem 752

Summary:	modify the code will lead to segmentation fault
Product:	Examples/Basic and Novice	Reporter:	enrico
Component:	N01	Assignee:	Makoto.Asai
Status:	RESOLVED INVALID
Severity:	normal	CC:	asai
Priority:	P2
Version:	other
Hardware:	Other
OS:	Linux

Description enrico 2005-06-12 19:04:06 CEST

environment: geant4 4.7.0.p01
OS Scientific Linux 4
problem:
change the particle "geantino" to other particle(ex. proton)
-----------
ExN01PrimaryGeneratorAction.cc: line 43
particleGun->SetParticleDefinition(particleTable->FindParticle(particleName="proton"));
ExN01PhysicsList.cc:  line 46
G4Proton::ProtonDefinition();

-----------

after recompile, the new executable will lead to segementation fault
after first-time core dump, program recompiled with the original
source(geantino) will always lead to segmentation fault.
the problem is found on the same environment on different machines.
but there is no problem doing such modification on FreeBSD system.

Comment 1 asai 2005-06-13 09:18:59 CEST

The physics list of exampleN01 has only geantino and its transportation
process. You cannot shoot other particle unless you modify the physics list.

Comment 2 enrico 2005-06-14 03:31:59 CEST

ExN01PrimaryGeneratorAction.cc: line 43
particleGun->SetParticleDefinition(particleTable->FindParticle(particleName="proton"));
ExN01PhysicsList.cc:  line 46
G4Proton::ProtonDefinition();

in fact i have changed the particle in physicslist and particle gun
this modification will lead segmentation fault under SL4.