src/hotspot/share/gc/z/zLiveMap.cpp

@@ -56,11 +56,11 @@
   // resets the marking information while the others busy wait.
   for (uint32_t seqnum = Atomic::load_acquire(&_seqnum);
        seqnum != ZGlobalSeqNum;
        seqnum = Atomic::load_acquire(&_seqnum)) {
     if ((seqnum != seqnum_initializing) &&
-        (Atomic::cmpxchg(seqnum_initializing, &_seqnum, seqnum) == seqnum)) {
+        (Atomic::cmpxchg(&_seqnum, seqnum, seqnum_initializing) == seqnum)) {
       // Reset marking information
       _live_bytes = 0;
       _live_objects = 0;
 
       // Clear segment claimed/live bits