From 18ce53ad1a7b7b77f5dc2a51681d4cb953915704 Mon Sep 17 00:00:00 2001
From: zgu <unknown>
Date: Fri, 14 Jun 2013 09:18:42 -0400
Subject: [PATCH] 8011968: Kitchensink crashed with SIGSEGV in
 MemBaseline::baseline Summary: Simple fix to add NULL pointer check that can
 cause segv Reviewed-by: coleenp, ctornqvi

---
 src/share/vm/services/memBaseline.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/share/vm/services/memBaseline.cpp b/src/share/vm/services/memBaseline.cpp
index c2d04106c..21eb8b5d4 100644
--- a/src/share/vm/services/memBaseline.cpp
+++ b/src/share/vm/services/memBaseline.cpp
@@ -130,7 +130,7 @@ bool MemBaseline::baseline_malloc_summary(const MemPointerArray* malloc_records)
       if (malloc_ptr->is_arena_record()) {
         // see if arena memory record present
         MemPointerRecord* next_malloc_ptr = (MemPointerRecordEx*)malloc_itr.peek_next();
-        if (next_malloc_ptr->is_arena_memory_record()) {
+        if (next_malloc_ptr != NULL && next_malloc_ptr->is_arena_memory_record()) {
           assert(next_malloc_ptr->is_memory_record_of_arena(malloc_ptr),
              "Arena records do not match");
           size = next_malloc_ptr->size();
-- 
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