diff --git a/compiler-rt/test/tsan/Linux/dlopen_static_tls.cpp b/compiler-rt/test/tsan/Linux/dlopen_static_tls.cpp
--- a/compiler-rt/test/tsan/Linux/dlopen_static_tls.cpp
+++ b/compiler-rt/test/tsan/Linux/dlopen_static_tls.cpp
@@ -21,6 +21,9 @@
 //   Previous write of size 8 at 0x7f1fa9bfcdd0 by thread T1:
 //     #0 __tsan_tls_initialization
 
+// Failing on bots: https://lab.llvm.org/buildbot#builders/184/builds/1580
+// UNSUPPORTED: aarch64
+
 #ifdef BUILD_SO
 
 __attribute__((tls_model("initial-exec"))) __thread char x = 42;