Re: [VMC] VMC/Geant3 and new TGeoManager ?

From: Rene Brun (Rene.Brun@cern.ch)
Date: Mon Jul 05 2004 - 11:10:10 MEST


Hi Laurent,

Thanks to Andrei Gheata, this problem is now fixed in the CVS head.

Note that I will make a new CVS tag early next week on the VMC,
at the same time that we release ROOT 4.00/08.

Rene Brun

Laurent Aphecetche wrote:
> 
> Hi,
> 
> I've installed (*) root + vmc + geant3 from CVS head (as of yesterday),
> and I started with the geant4_vmc/examples.
> 
> First, to get the libgeant321.so working, I had to implement the (empty)
> G3Volume::Copy(), otherwise the lib would not load because of this
> missing symbol.
> 
> Then, E01/E02/E03 are working fine as they are.
> 
> But I'd like to use the TGeoManager interface (because I suspect this is
> the one which will be used in the future, e.g. to get Fluka in the game,
> is that right ?). So I recompiled geant3 using -DWITHROOT. And then E01
> is failing :
> 
>   *** Break *** segmentation violation
>   Generating stack trace...
>   0x0117fa92 in TGeoManager::FindNode(double, double, double) + 0xaa
> from /opt/cern/root/dev/lib/libGeom.so
>   0x402738f4 in gmedia_ at /opt/cern/root/dev/include/TGeoManager.h:349
> from /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x40163ccf in g3ltrac_ at gtrak/gltrac.F:196 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x401778a5 in gtreveroot_ at gtrak/gtreveroot.F:169 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x40275afa in gutrev_ at TGeant3/TGeant3gu.cxx:558 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x40256d4f in jumpt0_ at minicern/jumptn.c:79 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x4007efa1 in g3trig_ at gbase/gtrig.F:62 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x4026edc2 in TGeant3::Gtrig() at TGeant3/TGeant3.cxx:2713 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x402732d5 in TGeant3::ProcessEvent() at TGeant3/TGeant3.cxx:5739 from
> /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x40273236 in TGeant3::ProcessRun(int) at TGeant3/TGeant3.cxx:5718
> from /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
>   0x01e5bf46 in Ex01MCApplication::RunMC(int) + 0x28 from
> /opt/cern/root/cvs/geant4_vmc/lib/tgt_Linux/libexample01.so
>   0x01e60b43 in <unknown> from
> /opt/cern/root/cvs/geant4_vmc/lib/tgt_Linux/libexample01.so
> 
> Is this expected (e.g. the TGeo/vmc is not supposed to work yet) or not ?
> 
> Thanks for your help,
> 
> (*)
> My system is a Fedora Core 1 one :
> uname -a : Linux xxxx  2.4.22-1.2174.nptl #1 Wed Feb 18 16:38:32 EST
> 2004 i686 i686 i386 GNU/Linux
> root-config --version : 4.00/07
> gcc --version : gcc (GCC) 3.3.2 20031022 (Red Hat Linux 3.3.2-1)
> 
> --
> Dr. Laurent APHECETCHE (mailto:aphecetc@in2p3.fr) (IN2P3-CNRS)
> SUBATECH-EMN-4 rue Alfred Kastler-BP 20722-44307 NANTES cedex 03
> TEL (+33/0) 2 51 85 84 17 - FAX (+33/0) 2 51 85 84 24 (France)
> Collaboration PHENIX http://www.phenix.bnl.gov/~aphecetc



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