Hi Carlos,
Are you referring to the source tar file or CVS. Commenting the lines
that you indicate would be a disaster!
To understand Christian's problem I would need a simplified example
If you start from source, make sure that you start from the CVS head.
Let me know.
Rene Brun
On
Fri, 13 Jun 2003, Carlos Muņoz Camacho wrote:
>
> Hi,
>
> I had the same problem. Previous versions of root allowed this without
> crashing. One possible solution if you installed root from source is to
> comment line 1609 of TBrachElement.cxx, comment-out line 1610 and
> recompile. This worked for me. Maybe developpers can look into that.
>
> Carlos
>
> On Fri, 13 Jun 2003, Christian Schmitt wrote:
>
> >Dear all,
> >
> >I have the following problem:
> >
> >I create a TTree with several Branches. Each Branch contains a class
> >which is derived from TObject and is declared in the following way:
> >
> >_sc_tree->Bronch("JetInfo","SC_JetInfo",&_sc_jetinfo,bufsize,split_level);
> >
> >This works fine as long as I set the splitlevel to 1 (both reading and
> >writing works). If I now set the splitlevel to 2 (I am using
> >TClonesArrays as data members of my classes)
> >I get a segmentation fault when reading the second entry of the tree
> >(writing works without problems !).
> >
> >To read the tree I do the following:
> >1. I set the Branch address: t->SetBranchAddress("JetInfo",&jet_info);
> >2. I call the GetEntry function for each event: t->GetEntry(jentry);
> >
> >The stack trace looks like this:
> >
> >----
> > Generating stack trace...
> > 0x401e0153 in TUnixSystem::StackTrace() at
> >/common/Tools/src/root/unix/src/TUnixSystem.cxx:1381 from
> >/common/Tools/root_debug/lib/libCore.so
> > 0x401deaf1 in TUnixSystem::DispatchSignals(ESignals) at
> >/common/Tools/src/root/unix/src/TUnixSystem.cxx:583 from
> >/common/Tools/root_debug/lib/libCore.so
> > 0x401ddc05 in <unknown> from /common/Tools/root_debug/lib/libCore.so
> > 0x401e1d44 in <unknown> from /common/Tools/root_debug/lib/libCore.so
> > 0x40f5ba7a in <unknown> from /lib/i686/libpthread.so.0
> > 0x41071d88 in <unknown> from /lib/i686/libc.so.6
> > 0x40171084 in TObjArray::Delete(char const*) at
> >/common/Tools/src/root/cont/src/TObjArray.cxx:260 from
> >/common/Tools/root_debug/lib/libCore.so
> > 0x401707dd in TObjArray::~TObjArray [not-in-charge]() at
> >/common/Tools/src/root/cont/src/TObjArray.cxx:74 from
> >/common/Tools/root_debug/lib/libCore.so
> > 0x401658da in TClonesArray::~TClonesArray [in-charge deleting]() at
> >/common/Tools/src/root/cont/src/TClonesArray.cxx:194 from
> >/common/Tools/root_debug/lib/libCore.so
> > 0x401b1247 in TStreamerInfo::ReadBufferClones(TBuffer&, TClonesArray*,
> >int, int, int) at /common/Tools/src/root/meta/src/TStreamerInfo.cxx:2709
> >from /common/Tools/root_debug/lib/libCore.so
> > 0x40d7ec8c in TBranchElement::ReadLeaves(TBuffer&) at
> >/common/Tools/src/root/tree/src/TBranchElement.cxx:1323 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d71c74 in TBranch::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TBranch.cxx:749 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d7d4b0 in TBranchElement::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TBranchElement.cxx:937 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d7d433 in TBranchElement::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TBranchElement.cxx:930 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d7d433 in TBranchElement::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TBranchElement.cxx:930 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d9ec03 in TTree::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TTree.cxx:2414 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x40d84e90 in TChain::GetEntry(int, int) at
> >/common/Tools/src/root/tree/src/TChain.cxx:560 from
> >/common/Tools/root_debug/lib/libTree.so
> > 0x08058af2 in eventloop(char*) + 0x234e from ./eventloop
> > 0x0805b1ee in main + 0xde from ./eventloop
> > 0x410604c2 in __libc_start_main + 0xa2 from /lib/i686/libc.so.6
> > 0x08054321 in TFile::TFile[in-charge](char const*, char const*, char
> >const*, int) + 0x39 from ./eventloop
> >Aborted
> >---
> >
> >I am using root 3.05/05 and gcc3.2 (SuSE8.1). As a test I also disabled
> >all destructors in my classes (in case the problem is there) but it
> >didn't help.
> >
> >Does anyone know of a solution ?
> >
> >Thanks,
> >
> > Christian
> >
>
>
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