diff --git a/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp b/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
index b856b12325bf6..e546b3824a5bd 100644
--- a/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
+++ b/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
@@ -4,8 +4,9 @@
 // RUN: %clangxx_asan -O0 %s -o %t
 // RUN: %env_asan_opts=detect_leaks=1 not %run %t 2>&1 | FileCheck %s
 
-// Hangs for unknown reasons.
-// UNSUPPORTED: darwin
+// FIXME: Hangs for unknown reasons on all platforms. We can re-enable it when
+// its either deterministic, or we solve the deadlock between asan and lsan.
+// UNSUPPORTED: true
 
 /*
  * Purpose: Verify deadlock prevention between ASan error reporting and LSan leak checking.