From 0f8bfff23df9375080fb08de947c623f652fe27b Mon Sep 17 00:00:00 2001
From: Eugene Zhulenev <ezhulenev@google.com>
Date: Mon, 11 Mar 2019 09:38:44 -0700
Subject: [PATCH] Fix a data race in NonBlockingThreadPool

---
 unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h b/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
index bd1910dcc..9e54254c1 100644
--- a/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
+++ b/unsupported/Eigen/CXX11/src/ThreadPool/NonBlockingThreadPool.h
@@ -29,6 +29,7 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
         thread_data_(num_threads),
         all_coprimes_(num_threads),
         waiters_(num_threads),
+        global_steal_partition_(EncodePartition(0, num_threads_)),
         blocked_(0),
         spinning_(0),
         done_(false),
@@ -56,7 +57,6 @@ class ThreadPoolTempl : public Eigen::ThreadPoolInterface {
       thread_data_[i].thread.reset(
           env_.CreateThread([this, i]() { WorkerLoop(i); }));
     }
-    global_steal_partition_ = EncodePartition(0, num_threads_);
 #ifndef EIGEN_THREAD_LOCAL
     // Wait for workers to initialize per_thread_map_. Otherwise we might race
     // with them in Schedule or CurrentThreadId.