Project a Chain into a Histogram

Hi!

I'm using the latest version of root (5.13.04) on linux. I tried to fill an histogram with

  TFile *f= new
TFile("/aliraid2/alice/melinda/melinda/prove/005/ntupleincatenate_nuove.root");   TChain *cate = (TChain*)f->Get("nt");
 TH1F *tracmax = new TH1F("trac","piu15t",200,14.,1000.);   cate->Project("trac","ntrksSPD","ntrksSPD>=16");

and when i tried to run the macro, i obtained this message:

• glibc detected *** free(): invalid pointer: 0x08cd45e8 ***

Program exited with code 06.

or

• Break *** segmentation violation Generating stack trace... 0xb6c85d4b in TTreeCache::SetEntryRange(long long, long long) + 0xaf from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTree.so
  0xb53c1c47 in TTreePlayer::Process(TSelector*, char const*, long long, long long) + 0x49f from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTreePlayer.so
  0xb53bb486 in TTreePlayer::DrawSelect(char const*, char const*, char const*, long long, long long) + 0x4b8 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTreePlayer.so
  0xb6c8e1a0 in TTree::Draw(char const*, char const*, char const*, long long, long long) + 0x5c from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTree.so
  0xb6c6499b in TChain::Draw(char const*, char const*, char const*, long long, long long) + 0xbb from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTree.so
  0xb6c92d22 in TTree::Project(char const*, char const*, char const*, char const*, long long, long long) + 0xca from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTree.so
  0xb6cbc0e4 in <unknown> from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libTree.so
  0xb741bb8e in G__ExceptionWrapper + 0x42 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74d72f9 in G__call_cppfunc + 0x2a5 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74c544e in G__interpret_func + 0x816 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74b1461 in G__getfunction + 0x15fb from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb7543fb1 in G__getstructmem + 0xb53 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb753b88d in G__getvariable + 0x5d5 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74a72f1 in G__getitem + 0x571 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74a5bf6 in G__getexpr + 0x9392 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74f0ece in G__exec_function + 0xca from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74f92a4 in G__exec_statement + 0x3546 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74c6ea1 in G__interpret_func + 0x2269 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74b1c74 in G__getfunction + 0x1e0e from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74a7395 in G__getitem + 0x615 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74a5bf6 in G__getexpr + 0x9392 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb749c4f1 in G__calc_internal + 0x2c7 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb74ff845 in G__process_cmd + 0x2377 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCint.so
  0xb7993ad2 in TCint::ProcessLine(char const*, TInterpreter::EErrorCode*) + 0x13e from /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so 0xb7993c3a in TCint::ProcessLineSynch(char const*, TInterpreter::EErrorCode*) + 0x46 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb78ba9ae in TApplication::ProcessFile(char const*, int*) + 0x6fa from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb78ba239 in TApplication::ProcessLine(char const*, bool, int*) + 0x5d9 from /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so 0xb69d5f30 in TRint::HandleTermInput() + 0x234 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libRint.so
  0xb69d473a in TTermInputHandler::Notify() + 0x24 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libRint.so
  0xb69d63ae in TTermInputHandler::ReadNotify() + 0x12 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libRint.so
  0xb7a37dcc in TUnixSystem::CheckDescriptors() + 0x148 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb7a36c9c in TUnixSystem::DispatchOneEvent(bool) + 0x188 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb79415b6 in TSystem::InnerLoop() + 0x18 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb7941556 in TSystem::Run() + 0x7a from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb78baae0 in TApplication::Run(bool) + 0x32 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libCore.so
  0xb69d58e4 in TRint::Run(bool) + 0x40c from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/lib/libRint.so
  0x08048d4b in main + 0x67 from
  /aliraid2/alice/melinda/alisoft/root/v5-13-04/bin/root.exe
  0xb6795e23 in __libc_start_main + 0xd3 from /lib/tls/libc.so.6 0x08048c5d in TApplicationImp::ShowMembers(TMemberInspector&, char*) + 0x31 from /aliraid2/alice/melinda/alisoft/root/v5-13-04/bin/root.exe Root > Function efficienza15() busy flag cleared

What have I to do? This macro run without problems with the version 5.11.06. Have I ti change something?

Thanks,

                      Melinda