hello,

in today's rel4 16.6.x.y-val, many reco atn and tct tests fail with the following error

nameauditor                                          info about to enter antikt6towerjets with auditor trigger execute
-------------------------------------------------------------------------------------
core dump from coredumpsvc on voatlas81.cern.ch at thu aug 11 05:04:40 2011

caught signal 11(segmentation fault). details: 
  errno = 0, code = 1 (address not mapped to object)
  pid   = -1515133304, uid = 4294658032
  value = (-309268, 0xfffb47ec)
  vmem = 1705.11 mb
  rss  = 1437.59 mb
  total-ram = 16057.1 mb
  free-ram  = 1638.05 mb
  buffer-ram= 834.883 mb
  total-swap= 16386.6 mb
  free-swap = 16386.4 mb
  addr  = 0xa5b0e688

event counter: 1
eventid: [run,evt,lumi,time,bunchcross,detmask] = [105200,1,0,0:0,0,0x0]
last incident: athenaeventloopmgr:beginevent
current algorithm: antikt6towerjets
algorithm stack: 
   athmasterseq
   athalgseq
   antikt6towerjets
-------------------------------------------------------------------------------------

(pid=20925 ppid=20924) received fatal signal 11 (segmentation fault)
signal context:
  signo  = 11, errno = 0, code = 1 (address not mapped to object)
  pid    = -1515133304, uid = -309264
  value  = (-309268, 0xfffb47ec)
  addr   = 0xa5b0e688
  stack  = (2, 0, (nil))

  eip: 0023:d9945344           eflags: 00210246
  eax: a5b0e68c   ebx: d99637e4   ecx: 4abd0078   edx: d9961f48
  esi: 43f96168   edi: 292a4340   ebp: fffb4a38   esp: fffb4a08
   ds: 002b        es: 002b        fs: 0000        ss: 002b

  signal esp: fffb4a08  trap: 14/4  oldmask: 00000000   cr2: a5b0e688

  fpu:  control = ffff037f
        status  = ffff4030
        tag     = ffffffff
        ip      = 0010:d4d868b5
        data    = 002b:fffb4c58
        state   = 00004030
    %fp0 = [3fd2:b800cc99224e99fd]
    %fp1 = [bfcc:1000b92efdb7a8ca]
    %fp2 = [3feb:e73bb0e8c068a5d0]
    %fp3 = [8000:0000000000000000]
    %fp4 = [3fc8:0d5eb1fdc398cfac]
    %fp5 = [400a:a800597762b9dbc5]
    %fp6 = [3ffa:a7516e893e72aa5e]
    %fp7 = [bffb:9800c50ae8afb49b]

stack trace:
 0xf34609f0 athena::debugaids::stacktrace(int) + 0x60 [/afs/cern.ch/atlas/software/builds/atlascore/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf345dc0f athena::signal::fataldump(int, siginfo*, void*) + 0xff [/afs/cern.ch/atlas/software/builds/atlascore/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf345df21 athena::signal::fatal(int, siginfo*, void*) + 0x181 [/afs/cern.ch/atlas/software/builds/atlascore/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf1af1c36 coredumpsvchandler::action(int, siginfo*, void*) + 0x106 [/afs/cern.ch/atlas/software/builds/atlascore/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xffffe600 
 0xd9945344 trk::tracktovertexipestimator::estimate(trk::trackparticlebase const*, trk::trackparticlebase const*, trk::vxcandidate const*, bool) const + 0x44 [/build/atnight/localbuilds/nightlies/16.6.x.y-val-prod/atlasproduction/rel_0/installarea/i686-slc5-gcc43-opt/lib/libtrkvertexfitterutilslib.so]
 0xd4d86929 analysis::iptag::tagjet(jet&amp;) + 0x1229 [/afs/cern.ch/atlas/software/builds/atlasreconstruction/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libjettagtoolslib.so]
 0xd4e98667 analysis::btagtool::tagjet(jet&amp;) + 0x1457 [/afs/cern.ch/atlas/software/builds/atlasreconstruction/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libbtagginglib.so]
 0xd74fb885 jetbtaggertool::execute(std::list &gt;*) + 0xbb5 [/afs/cern.ch/atlas/software/builds/atlasreconstruction/16.6.7/installarea/i686-slc5-gcc43-opt/lib/libjetrectoolslib.so]
 0xe8f83885 jetalgtoolbase::toplevel_execute(std::list &gt;*) + 0x355 [/build/atnight/localbuilds/nightlies/16.6.x.y-val-prod/atlasproduction/rel_0/installarea/i686-slc5-gcc43-opt/lib/libjetreclib.so]
 0xe8fb8868 jetalgorithm::executetool(ijetalgtoolbase*, std::list &gt;*) + 0x18 [/build/atnight/localbuilds/nightlies/16.6.x.y-val-prod/atlasproduction/rel_0/installarea/i686-slc5-gcc43-opt/lib/libjetreclib.so]
 0xe8fbc371 jetalgorithm::execute() + 0x2f1 [/build/atnight/localbuilds/nightlies/16.6.x.y-val-prod/atlasproduction/rel_0/installarea/i686-slc5-gcc43-opt/lib/libjetreclib.so]
 0xf46cf51d algorithm::sysexecute() + 0x11d [/afs/cern.ch/atlas/offline/external/gaudi/v21r9p3b/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]


e.g.
http://atlas-computing.web.cern.ch/atlas-computing/links/distdirectory/nightlies/patchwebarea/nicos_web_area166xyvalprod32bs5g4prodopt/nicos_testlog_rel_4/reconstruction_recexample_recexanatest_15__recexanatest_testconfiguration__recoshift_all__a.html
https://atlasrtt.cern.ch/tct/rel_4/16.6.x.y-val/build/i686-slc5-gcc43-opt/offline/tier0chaintests/latestrun_jettauetmiss1/latestrun_jettauetmiss1_log


thanks,
tina (sw val shifter)