# HG changeset patch
# User fujie
# Date 1474098248 14400
# Node ID ebe1a38c3e4fccaff01515a8959200849876ac65
# Parent  b863b5fdce61ac11960808c3d4731f366615d4d5
Sync before write on 3A2000 (Follow changeset 9f90c85c6815).

diff -r b863b5fdce61 -r ebe1a38c3e4f src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Mon Sep 12 13:59:25 2016 -0400
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Sat Sep 17 03:44:08 2016 -0400
@@ -3232,14 +3232,13 @@
     const size_t new_block = beg_bit >> Log2BitsPerBlock;
     if (new_block != cur_block) {
       cur_block = new_block;
-      sd.block(cur_block)->set_offset(bitmap->bits_to_words(live_bits));
-
 #ifdef MIPS64
       /* 2016/5/4 Jin: On 3A2000-B, when multiple threads write to
          the same memory location without explict synchronization,
          sync is required for access correctness. */
       OrderAccess::fence();
 #endif
+      sd.block(cur_block)->set_offset(bitmap->bits_to_words(live_bits));
     }
 
     const size_t end_bit = bitmap->find_obj_end(beg_bit, range_end);