Index: lib/msan/tests/msan_test.cc
===================================================================
--- lib/msan/tests/msan_test.cc
+++ lib/msan/tests/msan_test.cc
@@ -1214,15 +1214,27 @@
 }
 
 TEST(MemorySanitizer, shmat) {
-  void *p = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
-                 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  void *p;
+#if defined(__mips__)
+  posix_memalign(&p, SHMLBA, 4096);
+  ASSERT_TRUE(p != NULL);
+#else
+  p = mmap(NULL, 4096, PROT_READ | PROT_WRITE,
+           MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
   ASSERT_NE(MAP_FAILED, p);
+#endif
 
   ((char *)p)[10] = *GetPoisoned<U1>();
   ((char *)p)[4095] = *GetPoisoned<U1>();
 
-  int res = munmap(p, 4096);
+  int res;
+
+#if defined(__mips__)
+  free(p);
+#else
+  res = munmap(p, 4096);
   ASSERT_EQ(0, res);
+#endif
 
   int id = shmget(IPC_PRIVATE, 4096, 0644 | IPC_CREAT);
   ASSERT_GT(id, -1);