diff --git a/compiler-rt/test/crt/lit.cfg.py b/compiler-rt/test/crt/lit.cfg.py
index d5a6aa9862d9d..98415a0624d2c 100644
--- a/compiler-rt/test/crt/lit.cfg.py
+++ b/compiler-rt/test/crt/lit.cfg.py
@@ -93,3 +93,6 @@ def build_invocation(compile_flags):
 
 if config.host_os not in ['Linux']:
     config.unsupported = True
+# FIXME https://github.com/llvm/llvm-project/issues/54084
+if config.host_arch in ['ppc64', 'ppc64le']:
+    config.unsupported = True
diff --git a/compiler-rt/test/sanitizer_common/TestCases/Linux/lit.local.cfg.py b/compiler-rt/test/sanitizer_common/TestCases/Linux/lit.local.cfg.py
index 57271b8078a49..9313e083d6a15 100644
--- a/compiler-rt/test/sanitizer_common/TestCases/Linux/lit.local.cfg.py
+++ b/compiler-rt/test/sanitizer_common/TestCases/Linux/lit.local.cfg.py
@@ -7,3 +7,6 @@ def getRoot(config):
 
 if root.host_os not in ['Linux']:
   config.unsupported = True
+# FIXME https://github.com/llvm/llvm-project/issues/54084
+if root.host_arch in ['ppc64', 'ppc64le']:
+  config.unsupported = True