hi sofia, 

there are warnings from toolsvc.ipatfitter in tier-0 processing with recent data. 
49 warnings from toolsvc.ipatfitter are seen in
/castor/cern.ch/grid/atlas/tzero/prod1/temp/data11_7tev/physics_jettauetmiss/00179710/data11_7tev.00179710.physics_jettauetmiss.merge.raw.f361.recon.task.tmp.log/data11_7tev.00179710.physics_jettauetmiss.merge.raw.f361.recon.task._lb0400._sfo-all._0001.job.tmp.log.1
for 3660 events. 
+verbatim+
toolsvc.ipatfitter                                warning  addmeasurements: skip measurement as fail to intersect associated surface from given starting parameters
-verbatim-
this file is copied at
/afs/cern.ch/user/g/gencomm/w0/oda/run179710/data11_7tev.00179710.physics_jettauetmiss.merge.raw.f361.recon.task._lb0400._sfo-all._0001.job.tmp.log.1 

toolsvc.ipatfitter was called by mugirl. 
can you have a look? 

i extracted the raw file of 6 events with the warnings. 
you can see the warnings with atlasproduction 16.6.3.7 and
+verbatim+
 reco_trf.py ami=f361 preexec='indetflags.usebeamconstraint.set_value_and_lock(true);from calotools.calonoiseflags import jobproperties;jobproperties.calonoiseflags.fixedluminosity.set_value_and_lock(1.45);aodflags.trackparticleslimmer=true;from trackd3pdmaker.trackd3pdmakerflags import trackd3pdflags;trackd3pdflags.storetracksummary.pixeldedx=true;indetflags.selectsctintimehits=true;rec.donameauditor=true' inputbsfile=/afs/cern.ch/user/g/gencomm/w0/oda/run179710/data11_7tev.00179710.physics_jettauetmiss.merge.raw._lb0400._sfo-all._0001.1.ipatfitter outputesdfile=esd.pool.root
-verbatim-

thanks in advance, 
susumu 