burst_threadfilter test failing with "Cannot correctly handle a received signal"

Xref #26

https://travis-ci.org/DynamoRIO/dynamorio/jobs/368242799

  5/290 Test #250: code_api|tool.drcacheoff.burst_threadfilter ..................***Failed   11.62 sec
Running cmd |/home/travis/build/DynamoRIO/dynamorio/build_debug-internal-64/clients/bin64/tool.drcacheoff.burst_threadfilter|
CMake Error at /home/travis/build/DynamoRIO/dynamorio/suite/tests/runmulti.cmake:106 (message):
  *** cmd failed (40): pre-DR init
  pre-DR start
  pre-DR detach
  pre-DR init
  pre-DR start
  pre-DR detach
  pre-DR init
  pre-DR start
  pre-DR detach
  <ERROR: master_signal_handler with no siginfo (i#26?): tid=18964, sig=11>
  <Application
  /home/travis/build/DynamoRIO/dynamorio/build_debug-internal-64/clients/bin64/tool.drcacheoff.burst_threadfilter
  (18958).  Cannot correctly handle a received signal.>
  ***