*** Break *** floating point exception

===========================================================
There was a crash (kSigFloatingException).
This is the entire stack trace of all threads:
===========================================================
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb63068c3 in __waitpid_nocancel () from /lib/libc.so.6
#2  0xb62a3963 in do_system () from /lib/libc.so.6
#3  0xb63e457b in system () from /lib/libpthread.so.0
#4  0xb7139231 in TUnixSystem::Exec (this=0x80711c0, 
    shellcmd=0x1421e590 "/home/lavezzi/fairsoft5/tools/root/etc/gdb-backtrace.sh 22927 1>&2")
    at /home/lavezzi/fairsoft5/tools/root/core/unix/src/TUnixSystem.cxx:2036
#5  0xb7139a3d in TUnixSystem::StackTrace (this=0x80711c0)
    at /home/lavezzi/fairsoft5/tools/root/core/unix/src/TUnixSystem.cxx:2265
#6  0xb71375d7 in TUnixSystem::DispatchSignals (this=0x80711c0, 
    sig=kSigFloatingException)
    at /home/lavezzi/fairsoft5/tools/root/core/unix/src/TUnixSystem.cxx:1162
#7  0xb7135785 in SigHandler (sig=kSigFloatingException)
    at /home/lavezzi/fairsoft5/tools/root/core/unix/src/TUnixSystem.cxx:362
#8  0xb713ccef in sighandler (sig=8)
    at /home/lavezzi/fairsoft5/tools/root/core/unix/src/TUnixSystem.cxx:3552
#9  <signal handler called>
#10 0xb22007f8 in PndRiemannTrack::PndRiemannTrack (this=0xbfcd2bd8)
    at /home/lavezzi/test_dev/may11/PndTools/riemannfit/PndRiemannTrack.h:42
#11 0xb10cfa04 in PndMvdRiemannTrackFinder::GetStartTracks (
    this=0xbfcd3868)
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinder.cxx:305
#12 0xb10cde4a in PndMvdRiemannTrackFinder::FindTracks (this=0xbfcd3868)
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinder.cxx:108
#13 0xb10c9735 in PndMvdRiemannTrackFinderTask::Exec (this=0x8a7a930, 
    opt=0xb34d39c0 "")
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinderTask.cxx:127
#14 0xb70be5c9 in TTask::ExecuteTasks (this=0x808c778, 
    option=0xb34d39c0 "")
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TTask.cxx:312
#15 0xb70be3df in TTask::ExecuteTask (this=0x808c778, option=0xb34d39c0 "")
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TTask.cxx:275
#16 0xb342ab99 in FairRunAna::Run (this=0x8638a38, Ev_start=0, Ev_end=2000)
    at /home/lavezzi/test_dev/may11/base/FairRunAna.cxx:272
#17 0xb347dd84 in G__FairDict_883_0_5 (result7=0xbfcdf1a8, 
    funcname=0x808ad10 "", libp=0xbfcd4b64, hash=0)
    at /home/lavezzi/test_dev/may11/cbuild/base/FairDict.cxx:13242
#18 0xb68e083e in Cint::G__ExceptionWrapper (
    funcp=0xb347dc93 <G__FairDict_883_0_5(G__value*, char const*, G__param*, int)>, result7=0xbfcdf1a8, funcname=0x808ad10 "", libp=0xbfcd4b64, hash=0)
    at cint/cint/src/Api.cxx:393
#19 0xb69a89f6 in G__execute_call (result7=0xbfcdf1a8, libp=0xbfcd4b64, 
    ifunc=0x808ad10, ifn=0) at cint/cint/src/newlink.cxx:2406
#20 0xb69a9250 in G__call_cppfunc (result7=0xbfcdf1a8, libp=0xbfcd4b64, 
    ifunc=0x808ad10, ifn=0) at cint/cint/src/newlink.cxx:2610
#21 0xb69854ec in G__interpret_func (result7=0xbfcdf1a8, 
    funcname=0x807f0a0 "Run", libp=0xbfcd4b64, hash=309, 
    p_ifunc=0x808ad10, funcmatch=1, memfunc_flag=1)
    at cint/cint/src/ifunc.cxx:5795
#22 0xb6961d68 in G__getfunction (item=0x807c30e "Run(0,nEvents)", 
    known3=0xbfce269c, memfunc_flag=1) at cint/cint/src/func.cxx:2665
#23 0xb6a83144 in G__getstructmem (store_var_type=112, varname=..., 
    membername=0x807c30e "Run(0,nEvents)", memnamesize=2147483647, 
    tagname=0x807cb18 "fRun", known2=0xbfce269c, varglobal=0xb6b46280, 
    objptr=2) at cint/cint/src/var.cxx:6804
#24 0xb6a7529f in G__getvariable (item=0x807c308 "fRun->Run(0,nEvents)", 
    known=0xbfce269c, varglobal=0xb6b46280, varlocal=0x0)
    at cint/cint/src/var.cxx:5390
#25 0xb6951f7d in G__getitem (item=0x807c308 "fRun->Run(0,nEvents)")
    at cint/cint/src/expr.cxx:1906
#26 0xb694fae6 in G__getexpr (expression=0x809a148 "fRun->Run(0,nEvents)")
    at cint/cint/src/expr.cxx:1488
#27 0xb69d8e32 in G__exec_function (statement=..., pc=0xbfce4514, 
    piout=0xbfce4510, plargestep=0xbfce4508, presult=0xbfce4490)
    at cint/cint/src/parse.cxx:645
#28 0xb69e9416 in G__exec_statement (mparen=0xbfce4774)
    at cint/cint/src/parse.cxx:7372
#29 0xb6925489 in G__exec_tempfile_core (
    file=0x8099940 "/home/lavezzi/test_dev/may11/macro/stability/muons/prod5/./run_reco_stt_evt.C", fp=0x0) at cint/cint/src/debug.cxx:265
#30 0xb6926db3 in G__exec_tempfile (
    file=0x8099940 "/home/lavezzi/test_dev/may11/macro/stability/muons/prod5/./run_reco_stt_evt.C") at cint/cint/src/debug.cxx:813
#31 0xb69f73a4 in G__process_cmd (
    line=0x83c7fe8 ".x /home/lavezzi/test_dev/may11/macro/stability/muons/prod5/./run_reco_stt_evt.C", prompt=0x8073984 "", more=0x807397c, 
    err=0xbfce57e4, rslt=0xbfce57b0) at cint/cint/src/pause.cxx:3170
#32 0xb70f5fba in TCint::ProcessLine (this=0x8073950, 
    line=0x83c7fe8 ".x /home/lavezzi/test_dev/may11/macro/stability/muons/prod5/./run_reco_stt_evt.C", error=0xbfce83cc)
    at /home/lavezzi/fairsoft5/tools/root/core/meta/src/TCint.cxx:522
#33 0xb70f6513 in TCint::ProcessLineSynch (this=0x8073950, 
    line=0x83c7fe8 ".x /home/lavezzi/test_dev/may11/macro/stability/muons/prod5/./run_reco_stt_evt.C", error=0xbfce83cc)
    at /home/lavezzi/fairsoft5/tools/root/core/meta/src/TCint.cxx:601
#34 0xb704db38 in TApplication::ExecuteFile (
    file=0xbfce6391 "run_reco_stt_evt.C", error=0xbfce83cc, keep=false)
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TApplication.cxx:1035
#35 0xb704d3e6 in TApplication::ProcessFile (this=0x8138ed0, 
    file=0xbfce6391 "run_reco_stt_evt.C", error=0xbfce83cc, keep=false)
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TApplication.cxx:911
#36 0xb704d2a0 in TApplication::ProcessLine (this=0x8138ed0, 
    line=0xbfce638e ".x run_reco_stt_evt.C", sync=false, err=0xbfce83cc)
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TApplication.cxx:884
#37 0xb6555c9b in TRint::Run (this=0x8138ed0, retrn=false)
    at /home/lavezzi/fairsoft5/tools/root/core/rint/src/TRint.cxx:402
#38 0x08049085 in main (argc=1, argv=0xbfce84f4)
    at /home/lavezzi/fairsoft5/tools/root/main/src/rmain.cxx:29
===========================================================


The lines below might hint at the cause of the crash.
If they do not help you then please submit a bug report at
http://root.cern.ch/bugs. Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#10 0xb22007f8 in PndRiemannTrack::PndRiemannTrack (this=0xbfcd2bd8)
    at /home/lavezzi/test_dev/may11/PndTools/riemannfit/PndRiemannTrack.h:42
#11 0xb10cfa04 in PndMvdRiemannTrackFinder::GetStartTracks (
    this=0xbfcd3868)
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinder.cxx:305
#12 0xb10cde4a in PndMvdRiemannTrackFinder::FindTracks (this=0xbfcd3868)
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinder.cxx:108
#13 0xb10c9735 in PndMvdRiemannTrackFinderTask::Exec (this=0x8a7a930, 
    opt=0xb34d39c0 "")
    at /home/lavezzi/test_dev/may11/mvd/MvdTracking/PndMvdRiemannTrackFinderTask.cxx:127
#14 0xb70be5c9 in TTask::ExecuteTasks (this=0x808c778, 
    option=0xb34d39c0 "")
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TTask.cxx:312
#15 0xb70be3df in TTask::ExecuteTask (this=0x808c778, option=0xb34d39c0 "")
    at /home/lavezzi/fairsoft5/tools/root/core/base/src/TTask.cxx:275
#16 0xb342ab99 in FairRunAna::Run (this=0x8638a38, Ev_start=0, Ev_end=2000)
    at /home/lavezzi/test_dev/may11/base/FairRunAna.cxx:272
===========================================================