--- /dev/null
+// RUN: %clang_tsan -O1 %s -o %t && TSAN_OPTIONS="flush_memory_ms=1 memory_limit_mb=1" %run %t 2>&1 | FileCheck %s
+#include "test.h"
+#include <sys/types.h>
+#include <unistd.h>
+#include <time.h>
+
+// Test that setuid call works in presence of stoptheworld.
+
+int main() {
+ struct timespec tp0, tp1;
+ clock_gettime(CLOCK_MONOTONIC, &tp0);
+ clock_gettime(CLOCK_MONOTONIC, &tp1);
+ while (tp1.tv_sec - tp0.tv_sec < 3) {
+ clock_gettime(CLOCK_MONOTONIC, &tp1);
+ setuid(0);
+ }
+ fprintf(stderr, "DONE\n");
+ return 0;
+}
+
+// CHECK: DONE