Mercurial > hg > graal-compiler
diff src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp @ 1313:664ae0c5e0e5
6755988: G1: assert(new_obj != 0 || ... "should be forwarded")
Summary: A TLAB became large enough to be considered a humongous object allowing multiple objects to be allocated in a humongous region, which violates a basic assumption about humongous regions. The changes ensure that TLABs cannot be regarded as humongous.
Reviewed-by: iveresov, tonyp
author | johnc |
---|---|
date | Thu, 11 Mar 2010 11:44:43 -0800 |
parents | 2a1472c30599 |
children | 79e419e5ea3b |
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--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Mon Mar 15 02:56:45 2010 -0700 +++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Thu Mar 11 11:44:43 2010 -0800 @@ -1055,7 +1055,12 @@ // Returns "true" iff the given word_size is "very large". static bool isHumongous(size_t word_size) { - return word_size >= _humongous_object_threshold_in_words; + // Note this has to be strictly greater-than as the TLABs + // are capped at the humongous thresold and we want to + // ensure that we don't try to allocate a TLAB as + // humongous and that we don't allocate a humongous + // object in a TLAB. + return word_size > _humongous_object_threshold_in_words; } // Update mod union table with the set of dirty cards.