Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/heapRegion.cpp @ 1718:bb847e31b836
6974928: G1: sometimes humongous objects are allocated in young regions
Summary: as the title says, sometimes we are allocating humongous objects in young regions and we shouldn't.
Reviewed-by: ysr, johnc
author | tonyp |
---|---|
date | Tue, 17 Aug 2010 14:40:00 -0400 |
parents | 2d160770d2e5 |
children | 72a161e62cc4 |
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--- a/src/share/vm/gc_implementation/g1/heapRegion.cpp Tue Aug 17 14:40:00 2010 -0400 +++ b/src/share/vm/gc_implementation/g1/heapRegion.cpp Tue Aug 17 14:40:00 2010 -0400 @@ -790,8 +790,18 @@ int objs = 0; int blocks = 0; VerifyLiveClosure vl_cl(g1, use_prev_marking); + bool is_humongous = isHumongous(); + size_t object_num = 0; while (p < top()) { size_t size = oop(p)->size(); + if (is_humongous != g1->isHumongous(size)) { + gclog_or_tty->print_cr("obj "PTR_FORMAT" is of %shumongous size (" + SIZE_FORMAT" words) in a %shumongous region", + p, g1->isHumongous(size) ? "" : "non-", + size, is_humongous ? "" : "non-"); + *failures = true; + } + object_num += 1; if (blocks == BLOCK_SAMPLE_INTERVAL) { HeapWord* res = block_start_const(p + (size/2)); if (p != res) { @@ -857,6 +867,13 @@ } } + if (is_humongous && object_num > 1) { + gclog_or_tty->print_cr("region ["PTR_FORMAT","PTR_FORMAT"] is humongous " + "but has "SIZE_FORMAT", objects", + bottom(), end(), object_num); + *failures = true; + } + if (p != top()) { gclog_or_tty->print_cr("end of last object "PTR_FORMAT" " "does not match top "PTR_FORMAT, p, top());