hi,

we found 328 instances of &quot;fpe invalid in [execute] of taumerged&quot; during the recent bct of 16.6.0.1 (using 5 million high pile-up data events)  (see stack trace below)

it can be reproduced by:

asetup 16.6.0
reco_trf.py append_preexec=rec.dofloatingpointexception=true ami=f322 inputbsfile=&quot;/afs/cern.ch/user/m/mlimper/public/fpe_taumerged.data&quot;

stack trace:
 0xf2d359e0 athena::debugaids::stacktrace(int) + 0x60 [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf2d32c0f athena::signal::fataldump(int, siginfo*, void*) + 0xff [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf2d32f19 athena::signal::fatal(int, siginfo*, void*) + 0x179 [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf14bf06e coredumpsvchandler::action(int, siginfo*, void*) + 0xce [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xffffe600 &lt;unknown function&gt;
 0xf7ee9b59 log + 0x29 [/lib/libm.so.6]
 0xe60b0a36 tauenergyscale::evaluate_new_pt(double, double, int, double) + 0x36 [/afs/cern.ch/atlas/software/releases/16.6.0/atlasreconstruction/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libtaureclib.so]
 0xe60b22d9 tauenergyscale::execute(taucandidatedata*) + 0x289 [/afs/cern.ch/atlas/software/releases/16.6.0/atlasreconstruction/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libtaureclib.so]
 0xe601d251 tautoolset::execute(taucandidatedata*) + 0x1c1 [/afs/cern.ch/atlas/software/releases/16.6.0/atlasreconstruction/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libtaureclib.so]
 0xe606f992 taubuilder::execute() + 0xdd2 [/afs/cern.ch/atlas/software/releases/16.6.0/atlasreconstruction/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libtaureclib.so]
 0xf3e6b51d algorithm::sysexecute() + 0x11d [/afs/cern.ch/atlas/software/releases/16.6.0/gaudi/v21r9p3a/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]
 0xeaaebba3 athsequencer::execute() + 0x1f3 [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libgaudisequencer.so]
 0xf3e6b51d algorithm::sysexecute() + 0x11d [/afs/cern.ch/atlas/software/releases/16.6.0/gaudi/v21r9p3a/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]
 0xeaaebba3 athsequencer::execute() + 0x1f3 [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libgaudisequencer.so]
 0xf3e6b51d algorithm::sysexecute() + 0x11d [/afs/cern.ch/atlas/software/releases/16.6.0/gaudi/v21r9p3a/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]
 0xf14d4adf athenaeventloopmgr::executealgorithms() + 0x6f [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xf14db2ce athenaeventloopmgr::executeevent(void*) + 0x83e [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xf14d9fb2 athenaeventloopmgr::nextevent(int) + 0x8a2 [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xf14d3c6b athenaeventloopmgr::executerun(int) + 0x1b [/afs/cern.ch/atlas/software/releases/16.6.0/atlascore/16.6.0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xf1b1aa49 applicationmgr::executerun(int) + 0x79 [/afs/cern.ch/atlas/software/releases/16.6.0/gaudi/v21r9p3a/installarea/i686-slc5-gcc43-opt/lib/libgaudisvc.so]


