diff --git a/src/hotspot/os/posix/os_posix.cpp b/src/hotspot/os/posix/os_posix.cpp
index 07e1920c62dbb..55a20b0e33def 100644
--- a/src/hotspot/os/posix/os_posix.cpp
+++ b/src/hotspot/os/posix/os_posix.cpp
@@ -457,12 +457,10 @@ char* os::map_memory_to_file(char* base, size_t size, int fd) {
     warning("Failed mmap to file. (%s)", os::strerror(errno));
     return nullptr;
   }
-  if (base != nullptr && addr != base) {
-    if (!os::release_memory(addr, size)) {
-      warning("Could not release memory on unsuccessful file mapping");
-    }
-    return nullptr;
-  }
+
+  // The requested address should be the same as the returned address when using MAP_FIXED
+  // as per POSIX.
+  assert(base == nullptr || addr == base, "base should equal addr when using MAP_FIXED");
   return addr;
 }