Hi Kostya, Alex, Some changes in the sanitizers made this test start passing: TestCases/Posix/start-deactivated.cc http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15-full/builds/4277 It passes on both ARM and Thumb, both NEON and non-NEON. Should we mark is as PASS now? Or is that a fluke? cheers, --renato