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6815683: G1: SEGV during marking

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We should mark the regions that continue humongous regions as live if the first region is live.

Reviewed-by: tonyp
This commit is contained in:
Igor Veresov 2009-03-16 17:48:01 -07:00
parent 217739210d
commit 736e8a2d4b
1 changed files with 10 additions and 1 deletions
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11
hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp
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@ -1232,7 +1232,16 @@ public:
if (!_final && _regions_done == 0)
_start_vtime_sec = os::elapsedVTime();
if (hr->continuesHumongous()) return false;
if (hr->continuesHumongous()) {
HeapRegion* hum_start = hr->humongous_start_region();
// If the head region of the humongous region has been determined
// to be alive, then all the tail regions should be marked
// such as well.
if (_region_bm->at(hum_start->hrs_index())) {
_region_bm->par_at_put(hr->hrs_index(), 1);
}
return false;
}
HeapWord* nextTop = hr->next_top_at_mark_start();
HeapWord* start = hr->top_at_conc_mark_count();