#0  0x0000003c61c9a115 in waitpid () from /lib64/libc.so.6
#1  0x0000003c61c3c481 in do_system () from /lib64/libc.so.6
#2  0x00002b3cb6143eea in TUnixSystem::StackTrace() ()
   from /data/lhcb/sw/lcg/external/ROOT/5.28.00b/x86_64-slc5-gcc43-opt/root/lib/libCore.so
#3  0x00002b3cb61438bc in TUnixSystem::DispatchSignals(ESignals) ()
   from /data/lhcb/sw/lcg/external/ROOT/5.28.00b/x86_64-slc5-gcc43-opt/root/lib/libCore.so
#4  <signal handler called>
#5  0x00002b3cb60af6a2 in TString::~TString() ()
   from /data/lhcb/sw/lcg/external/ROOT/5.28.00b/x86_64-slc5-gcc43-opt/root/lib/libCore.so
#6  0x00002b3cbb5a6006 in TTreePlayer::DrawSelect(char const*, char const*, char const*, long long, long long) ()
   from /data/lhcb/sw/lcg/external/ROOT/5.28.00b/x86_64-slc5-gcc43-opt/root/lib/libTreePlayer.so
#7  0x00000000004030dd in main ()