Hi Laurent, Thanks for reporting this problem with chains + selections + scan Now fixed in CVS Rene Brun On Thu, 27 Feb 2003, Laurent Le Guillou wrote: > > > Hi Rooters, > > I am using Root 3.05/01 (root_v3.05.01.Linux.RH7.3.gcc296) > on a Redhat 7.2 gcc 2.96. > > I am trying since 2 weeks to apply cuts on a TChain > of TTrees. TTrees are simple ones with only simple > variables (int, float, double). I am able to Draw or > Scan the variables of the TChain, but, when I try > to apply any cut, even the simplest one, a segmentation > fault occured. Previously I have tried to use a Selector > with MakeSelector and a segfault occured too. > > For example : > > the following commands work : > > chain->Scan("Target:Field:CCD:Tile:Number", ""); > chain->Draw("Number", ""); > > And this one produces a segfault : > > chain->Scan("Target:Field:CCD:Tile:Number", "Number>100"); > > ************************************************************************ > * Row * Target * Field * CCD * Tile * Number * > ************************************************************************ > > *** Break *** segmentation violation > Generating stack trace... > 0x401c07eb in TUnixSystem::StackTrace(void) + 0x25b from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x401bf43e in TUnixSystem::DispatchSignals(ESignals) + 0xb2 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x401be5e7 in <unknown> from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x401c20b5 in <unknown> from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x40cd0a65 in <unknown> from /lib/i686/libpthread.so.0 > 0x40d71958 in <unknown> from /lib/i686/libc.so.6 > 0x414ad873 in TTreePlayer::Scan(char const *, char const *, char const *, > int, int) + 0xb47 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libTreePlayer.so > 0x40b7f98c in TTree::Scan(char const *, char const *, char const *, int, > int) + 0x50 from /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libTree.so > 0x40b98401 in <unknown> from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libTree.so > 0x405c8831 in G__call_cppfunc + 0x281 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405b7fc5 in G__interpret_func + 0x8ad from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x4059ded1 in G__getfunction + 0x1445 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x4062b21b in G__getstructmem + 0x7c3 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x40624026 in G__getvariable + 0x636 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x40595f99 in G__getitem + 0x4dd from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x40594753 in G__getexpr + 0x8c3f from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405df723 in G__exec_function + 0x123 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405e6b0c in G__exec_statement + 0x2e74 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405b982c in G__interpret_func + 0x2114 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x4059e660 in G__getfunction + 0x1bd4 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x40595fc5 in G__getitem + 0x509 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x40594753 in G__getexpr + 0x8c3f from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405df723 in G__exec_function + 0x123 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405e6b0c in G__exec_statement + 0x2e74 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x4057c470 in G__exec_tempfile + 0x2a0 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x405eeee9 in G__process_cmd + 0x4e85 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCint.so > 0x4017e8ea in TCint::ProcessLine(char const *, TInterpreter::EErrorCode > *) + 0x9a from /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x40105bff in TApplication::ProcessLine(char const *, bool, int *) + > 0x56b from /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x40ca221b in TRint::HandleTermInput(void) + 0x127 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libRint.so > 0x40ca1540 in TTermInputHandler::Notify(void) + 0x28 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libRint.so > 0x40ca287b in TTermInputHandler::ReadNotify(void) + 0x13 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libRint.so > 0x401bf833 in TUnixSystem::CheckDescriptors(void) + 0x113 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x401bef46 in TUnixSystem::DispatchOneEvent(bool) + 0x112 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x401514f5 in TSystem::InnerLoop(void) + 0x1d from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x4015148a in TSystem::Run(void) + 0x7e from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x4010678d in TApplication::Run(bool) + 0x31 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libCore.so > 0x40ca1d56 in TRint::Run(bool) + 0x2ba from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/lib/libRint.so > 0x08048792 in main + 0x52 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/bin/root.exe > 0x40d5f657 in __libc_start_main at > /usr/src/build/158656-i686/BUILD/glibc-2.2.4/csu/../sysdeps/generic/libc-start.c:129 > from /lib/i686/libc.so.6 > 0x08048661 in __register_frame_info + 0x35 from > /afs/in2p3.fr/home/l/leguil/usr/lib/root/bin/root.exe > Root > Function AnalysisClouds() busy flag cleared > > > What did I wrong ? > Is it a bug ? > > When I use the TTreeViewer to draw a variable with a cut, > it works (sometimes)... > > > Cordialement, > > > Laurent > > > ------------------------------------------------------------------- > Laurent LE GUILLOU leguil@in2p3.fr > ATER Paris 6 / LPNHE Collaboration EROS / Projet SNLS > LPNHE - Jussieu - Tour 33 rdc - Bureau 422 - +33 1.44.27.41.66 >
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