# HG changeset patch
# User zgu
# Date 1372933448 14400
# Node ID 5f7a4367c78702f6e3917706bcac215d41ad96f1
# Parent  cedf20e2a655329f04732f2e67ebbb98cf46cb07
8016074: NMT: assertion failed: assert(thread->thread_state() == from) failed: coming from wrong thread state
Summary: Uses os::NakedYield() on Solaris instead of os::yield_all()
Reviewed-by: acorn, coleenp, hseigel

diff -r cedf20e2a655 -r 5f7a4367c787 src/share/vm/services/memTracker.hpp
--- a/src/share/vm/services/memTracker.hpp	Tue Jul 02 16:54:24 2013 +0200
+++ b/src/share/vm/services/memTracker.hpp	Thu Jul 04 06:24:08 2013 -0400
@@ -470,7 +470,21 @@
   static void check_NMT_load(Thread* thr) {
     assert(thr != NULL, "Sanity check");
     if (_slowdown_calling_thread && thr != _worker_thread) {
+#ifdef _WINDOWS
+      // On Windows, os::NakedYield() does not work as well
+      // as os::yield_all()
       os::yield_all();
+#else
+     // On Solaris, os::yield_all() depends on os::sleep()
+     // which requires JavaTherad in _thread_in_vm state.
+     // Transits thread to _thread_in_vm state can be dangerous
+     // if caller holds lock, as it may deadlock with Threads_lock.
+     // So use NaKedYield instead.
+     //
+     // Linux and BSD, NakedYield() and yield_all() implementations
+     // are the same.
+      os::NakedYield();
+#endif
     }
   }