https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64350
Dmitry Vyukov <dvyukov at google dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dvyukov at google dot com --- Comment #1 from Dmitry Vyukov <dvyukov at google dot com> --- I've fixed a bunch of bugs in deadlock detector just few hours ago. Please re-test with these fixes: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_deadlock_detector.h?r1=224518&r2=224517&pathrev=224518 http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_deadlock_detector.h?r1=224519&r2=224518&pathrev=224519 I've also added a random stress test, and I think I saw your crash during testing. It does not happen for me with the fixes.