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src/hotspot/os/aix/os_aix.cpp

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@@ -1082,11 +1082,11 @@
     jlong now = jlong(time.tb_high) * NANOSECS_PER_SEC + jlong(time.tb_low);
     jlong prev = max_real_time;
     if (now <= prev) {
       return prev;   // same or retrograde time;
     }
-    jlong obsv = Atomic::cmpxchg(now, &max_real_time, prev);
+    jlong obsv = Atomic::cmpxchg(&max_real_time, prev, now);
     assert(obsv >= prev, "invariant");   // Monotonicity
     // If the CAS succeeded then we're done and return "now".
     // If the CAS failed and the observed value "obsv" is >= now then
     // we should return "obsv".  If the CAS failed and now > obsv > prv then
     // some other thread raced this thread and installed a new value, in which case

@@ -1792,11 +1792,11 @@
 
 static int check_pending_signals() {
   for (;;) {
     for (int i = 0; i < NSIG + 1; i++) {
       jint n = pending_signals[i];
-      if (n > 0 && n == Atomic::cmpxchg(n - 1, &pending_signals[i], n)) {
+      if (n > 0 && n == Atomic::cmpxchg(&pending_signals[i], n, n - 1)) {
         return i;
       }
     }
     JavaThread *thread = JavaThread::current();
     ThreadBlockInVM tbivm(thread);
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