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8011968: Kitchensink crashed with SIGSEGV in MemBaseline::baseline

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Simple fix to add NULL pointer check that can cause segv

Reviewed-by: coleenp, ctornqvi
This commit is contained in:
Zhengyu Gu 2013-06-14 09:18:42 -04:00
parent 72a51a0c44
commit 737454c744
1 changed files with 1 additions and 1 deletions
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2
hotspot/src/share/vm/services/memBaseline.cpp
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@ -130,7 +130,7 @@ bool MemBaseline::baseline_malloc_summary(const MemPointerArray* malloc_records)
if (malloc_ptr->is_arena_record()) { if (malloc_ptr->is_arena_record()) {
// see if arena memory record present // see if arena memory record present
MemPointerRecord* next_malloc_ptr = (MemPointerRecordEx*)malloc_itr.peek_next(); 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), assert(next_malloc_ptr->is_memory_record_of_arena(malloc_ptr),
"Arena records do not match"); "Arena records do not match");
size = next_malloc_ptr->size(); size = next_malloc_ptr->size();