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
@@ -21,8 +21,10 @@
 //   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
+// Failing on bots:
+// https://lab.llvm.org/buildbot#builders/184/builds/1580
+// https://lab.llvm.org/buildbot#builders/18/builds/3167
+// UNSUPPORTED: aarch64, powerpc64, powerpc64le
 
 #ifdef BUILD_SO