diff --git a/compiler-rt/lib/tsan/tests/unit/tsan_trace_test.cpp b/compiler-rt/lib/tsan/tests/unit/tsan_trace_test.cpp
--- a/compiler-rt/lib/tsan/tests/unit/tsan_trace_test.cpp
+++ b/compiler-rt/lib/tsan/tests/unit/tsan_trace_test.cpp
@@ -152,6 +152,7 @@
       uptr tag = kExternalTagNone;
       bool res = RestoreStack(thr->tid, v3::EventType::kLock, thr->sid,
                               thr->epoch, 0x5001, 0, 0, &stk, &mset, &tag);
+      CHECK(res);
       CHECK_EQ(stk.size, 2);
       CHECK_EQ(stk.trace[0], 0x1000);
       CHECK_EQ(stk.trace[1], 0x4002);
@@ -194,6 +195,7 @@
       bool res =
           RestoreStack(thr->tid, v3::EventType::kAccessExt, thr->sid,
                        thr->epoch, 0x3000, 8, kAccessRead, &stk, &mset, &tag);
+      CHECK(res);
       CHECK_EQ(stk.size, 4);
       CHECK_EQ(stk.trace[0], 0x1000);
       CHECK_EQ(stk.trace[1], 0x2000);