Hello, I produced some basic histos and wrote them in a root file. every thing runs well but when I open the root file I get a strange (i.e difficult to translate !) message : sbgpcs36:~/analyse/my_analyze/current/d0/current_analyze $ root -l LightDataTaggingEfficiency.root root [0] Attaching file LightDataTaggingEfficiency.root... root [1] new TBrowser (class TBrowser*)0x85b1968 root [2] *** Break *** segmentation violation Generating stack trace... 0x401ede47 in TUnixSystem::StackTrace(void) + 0x29b from /cern/2003/root.3.05.07//lib/libCore.so 0x401ec74f in TUnixSystem::DispatchSignals(ESignals) + 0xc3 from /cern/2003/root.3.05.07//lib/libCore.so 0x401eb780 in <unknown> from /cern/2003/root.3.05.07//lib/libCore.so 0x401ef747 in <unknown> from /cern/2003/root.3.05.07//lib/libCore.so 0x40f02ac5 in <unknown> from /lib/i686/libpthread.so.0 0x40fa2948 in <unknown> from /lib/i686/libc.so.6 0x00000000 in <unknown function> Root > <TCanvas::MakeDefCanvas>: created default TCanvas with name c1 I put the root file on : /afs/in2p3.fr/home/g/greder/public By the way is there a way to decode the above message (tools, things one could directly look at if there is a specific message ?) I don't understand were the null pointer comes from (0x00000000 in <unknown function>) i'm running with : Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-98) and root version 3.05.07 thanks, seb. the piece of code to save the histos (they were built correctly) TFile outputfile(fOutputFileName.Data(),"recreate"); TObjString ainputfile(inputfilename); ainputfile.Write(); hNegDataTaggingEfficiencyVsPt -> Write(); hPosDataTaggingEfficiencyVsPt -> Write(); hNegDataTaggingEfficiencyVsEta -> Write(); hPosDataTaggingEfficiencyVsEta -> Write(); outputfile.Close(); --------------------------------------------------------------------- | Sebastien GREDER tel : +33 (0)3 88 10 63 54 | | D0 Strasbourg, | | Institut de Recherches Subatomiques fax : +33 (0)3 88 10 62 34 | | 23, rue du loess - BP 28 secr : +33 (0)3 88 10 66 40 | | F-67037- STRASBOURG cedex 2 e-mail : greder@in2p3.fr, | | greder@fnal.gov | ---------------------------------------------------------------------
This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:16 MET