hi,

in today's rel6 dev and devval, many rtt fail from a seg fault in muoncombitrackbuilder 
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core dump from coredumpsvc on lxbrg3809.cern.ch at sat may  7 06:30:36 2011

caught signal 11(segmentation fault). details: 
  errno = 0, code = 1 (address not mapped to object)
  pid   = 0, uid = 3559360
  value = (1431761568, 0x5556f2a0)
  vmem = 1451.38 mb
  rss  = 1220.76 mb
  total-ram = 15926 mb
  free-ram  = 1425.07 mb
  buffer-ram= 297.703 mb
  total-swap= 4094.55 mb
  free-swap = 4094.34 mb
  addr  = 0

event counter: 5
eventid: [run,evt,lumi,time,bunchcross,detmask] = [105568,86055,1,0:0,0,0x0]
last incident: athenaeventloopmgr:beginevent
current algorithm: muoncombitrackbuilder
algorithm stack: 
   athmasterseq
   athalgseq
   muoncombitrackbuilder
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logfiles here
https://atlasrtt.cern.ch/rtt/rel_6/devval/build/i686-slc5-gcc43-opt/offline/recexrecotest/mc09_14tev_lowlumi/mc09_14tev_lowlumi_log
https://atlasrtt.cern.ch/get/rtt/rel_6/devval/build/i686-slc5-gcc43-opt/atlasproduction/recexrecotest/mc10_idmuoncalo

thanks,
tina (sw val shifter)