Fix endless reaparenting loop

[stockfish] / src / thread.cpp

diff --git a/src/thread.cpp b/src/thread.cpp
index fe7a669b8e66f989d990e89f9e24127afe1848f4..631834da4b9f60c159facb502b5f7e2c0ac3fe04 100644 (file)
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -313,12 +313,13 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
       return bestValue;
 
   // Pick the next available split point from the split point stack
-  SplitPoint* sp = &master->splitPoints[master->splitPointsCnt++];
+  SplitPoint* sp = &master->splitPoints[master->splitPointsCnt];
 
   sp->parent = master->curSplitPoint;
   sp->master = master;
   sp->cutoff = false;
   sp->slavesMask = 1ULL << master->idx;
+  sp->allSlavesRunning = true;
   sp->depth = depth;
   sp->bestMove = *bestMove;
   sp->threatMove = threatMove;
@@ -357,6 +358,8 @@ Value ThreadsManager::split(Position& pos, Stack* ss, Value alpha, Value beta,
               break;
       }
 
+  master->splitPointsCnt++;
+
   lock_release(splitLock);
   lock_release(sp->lock);
 
@@ -434,7 +437,7 @@ void ThreadsManager::start_searching(const Position& pos, const LimitsType& limi
   Signals.stopOnPonderhit = Signals.firstRootMove = false;
   Signals.stop = Signals.failedLowAtRoot = false;
 
-  RootPosition.copy(pos, main_thread());
+  RootPosition = pos;
   Limits = limits;
   RootMoves.clear();