# HG changeset patch
# User stefank
# Date 1415709921 -3600
# Node ID 706dce84c9df329876cdfdca6f2c8edf4663c439
# Parent  b12a2a9b05ca00a9493736d2dcae7e2ee2389b37
8064556: G1: ParallelGCThreads=0 may cause assert(!MetadataOnStackMark::has_buffer_for_thread(Thread::current())) failed: Should be empty
Reviewed-by: mgerdin, tschatzl

diff -r b12a2a9b05ca -r 706dce84c9df src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Thu Oct 02 10:55:36 2014 +0200
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp	Tue Nov 11 13:45:21 2014 +0100
@@ -5228,7 +5228,9 @@
   }
 
   void pre_work_verification() {
-    assert(!MetadataOnStackMark::has_buffer_for_thread(Thread::current()), "Should be empty");
+    // The VM Thread will have registered Metadata during the single-threaded phase of MetadataStackOnMark.
+    assert(Thread::current()->is_VM_thread()
+           || !MetadataOnStackMark::has_buffer_for_thread(Thread::current()), "Should be empty");
   }
 
   void post_work_verification() {