[PATCH] [Tsan] Fix the signal_recursive.cc test to pass on systems with high loads

[Dmitry Vyukov]

Does the following change fix the issue? With this change all tsan state is initialized when pthread_create returns as far as I see. It would be a much better fix.


Index: rtl/tsan_interceptors.cc
===================================================================
--- rtl/tsan_interceptors.cc	(revision 222341)
+++ rtl/tsan_interceptors.cc	(working copy)
@@ -882,8 +882,8 @@
     ThreadIgnoreEnd(thr, 0);
     while ((tid = atomic_load(&p->tid, memory_order_acquire)) == 0)
       pthread_yield();
+    ThreadStart(thr, tid, GetTid());
     atomic_store(&p->tid, 0, memory_order_release);
-    ThreadStart(thr, tid, GetTid());
   }
   void *res = callback(param);
   // Prevent the callback from being tail called,

http://reviews.llvm.org/D6504