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8011968: Kitchensink crashed with SIGSEGV in MemBaseline::baseline
authorzgu
Fri, 14 Jun 2013 09:18:42 -0400
changeset 18075 0b1536254711
parent 18069 e6d4971c8650
child 18076 15f972729e16
8011968: Kitchensink crashed with SIGSEGV in MemBaseline::baseline Summary: Simple fix to add NULL pointer check that can cause segv Reviewed-by: coleenp, ctornqvi
hotspot/src/share/vm/services/memBaseline.cpp file | annotate | diff | comparison | revisions 
--- a/hotspot/src/share/vm/services/memBaseline.cpp	Thu Jun 13 11:16:38 2013 -0700
+++ b/hotspot/src/share/vm/services/memBaseline.cpp	Fri Jun 14 09:18:42 2013 -0400
@@ -130,7 +130,7 @@
       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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