hello,

in today's rel5 devval, the rtt test recexanatest_testconfiguration#all_lowlumi failed with a seg fault in trigmuonefextrapolator

e.g.
py:athdsologger      info [16460] loading lib: vmem=(  966196.0 +      604.0) kb [libmuidtrackbuilder.so]
-------------------------------------------------------------------------------------
core dump from coredumpsvc on voatlas103.cern.ch at fri jan 28 05:44:46 2011

caught signal 11(segmentation fault). details: 
  errno = 0, code = 1 (address not mapped to object)
  pid   = 22, uid = 344848273
  value = (-134662476, 0xf7f936b4)
  vmem = 944.137 mb
  rss  = 684.129 mb
  total-ram = 24098.7 mb
  free-ram  = 1175.57 mb
  buffer-ram= 2278.65 mb
  total-swap= 65538.6 mb
  free-swap = 65538.4 mb
  addr  = 0x16

event counter: 0
current algorithm: trigmuonefextrapolator
algorithm stack: 
   athmasterseq
   athalgseq
   trigmuonefextrapolator
-------------------------------------------------------------------------------------

(pid=16460 ppid=16459) received fatal signal 11 (segmentation fault)
signal context:
  signo  = 11, errno = 0, code = 1 (address not mapped to object)
  pid    = 22, uid = 344848273
  value  = (-134662476, 0xf7f936b4)
  addr   = 0x16
  stack  = (2, 0, (nil))

  eip: 0023:f7fcb784           eflags: 00210203
  eax: 1007a000   ebx: f7fd2354   ecx: 00000a00   edx: f7fd6800
  esi: 00000000   edi: 00000910   ebp: fff002b8   esp: fff00280
   ds: 002b        es: 002b        fs: 0000        ss: 002b

  signal esp: fff00280  trap: 14/4  oldmask: 00000000   cr2: 00000016

  fpu:  control = ffff037f
        status  = ffff4020
        tag     = ffffffff
        ip      = 0010:f4cf7b63
        data    = 002b:2289ae6c
        state   = 00004020
    %fp0 = [3fa1:000000000000a688]
    %fp1 = [0000:0000000000000000]
    %fp2 = [0000:0000000000000000]
    %fp3 = [0000:0000000000000000]
    %fp4 = [4007:0000000000009600]
    %fp5 = [bfff:0000000000008000]
    %fp6 = [3ffb:d000cccccccccccc]
    %fp7 = [4005:000000000000c800]

stack trace:
 0xf34a0fc0 athena::debugaids::stacktrace(int) + 0x60 [/build/atnight/localbuilds/nightlies/16.x.0-val/atlascore/rel_0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf34a1ddf athena::signal::fataldump(int, siginfo*, void*) + 0xff [/build/atnight/localbuilds/nightlies/16.x.0-val/atlascore/rel_0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf34a20e9 athena::signal::fatal(int, siginfo*, void*) + 0x179 [/build/atnight/localbuilds/nightlies/16.x.0-val/atlascore/rel_0/installarea/i686-slc5-gcc43-opt/lib/libcxxutils.so]
 0xf1baf226 coredumpsvchandler::action(int, siginfo*, void*) + 0x106 [/build/atnight/localbuilds/nightlies/16.x.0-val/atlascore/rel_0/installarea/i686-slc5-gcc43-opt/lib/libathenaservices.so]
 0xffffe600 &lt;unknown function&gt;
 0xf7fcb784 do_free /afs/cern.ch/user/s/seuster/scratch0/gpt/google-perftools-0.99.2c/src/tcmalloc.cc:2798 + 0xd4 [/afs/cern.ch/atlas/offline/external/tcmalloc/google-perftools-0.99.2c/i686-slc5-gcc43-opt/lib/libtcmalloc_minimal.so]
 0xf7f3ce3d std::string::_rep::_m_destroy(std::allocator&lt;char&gt; const&amp;) + 0x1d [/afs/cern.ch/sw/lcg/external/gcc/4.3.2/x86_64-slc5/lib/libstdc++.so.6]
 0xf7f3e6a3 std::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt; &gt;::~basic_string() + 0x63 [/afs/cern.ch/sw/lcg/external/gcc/4.3.2/x86_64-slc5/lib/libstdc++.so.6]
 0xf4d11d46 propertywithvalue&lt;bool&gt;::assign(property const&amp;) + 0xd6 [/build/atnight/localbuilds/nightlies/16.x.0-val/gaudi/rel_0/installarea/i686-slc5-gcc43-opt/lib/libgaudipythondict.so]
 0xf47a33a4 propertymgr::setproperty(property const&amp;) + 0x44 [/build/atnight/localbuilds/nightlies/16.x.0-val/gaudi/rel_0/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]
 0xf46ddaa3 algtool::setproperty(property const&amp;) + 0x23 [/build/atnight/localbuilds/nightlies/16.x.0-val/gaudi/rel_0/installarea/i686-slc5-gcc43-opt/lib/libgaudikernel.so]

logfiles here
http://atlas-computing.web.cern.ch/atlas-computing/links/builddirectory/nightlies/devval/atlasanalysis/rel_5/nicos_area/nicos_testlog16x0val32bs5g4anlopt/reconstruction_recexample_recexanatest_19__recexanatest_testconfiguration__all_lowlumi__a.loglog

thanks,
tina (recosim shifter)