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7092412: G1: Some roots not marked during an initial mark that gets an evacuation failure

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As a result of the changes for 7080389, an evacuation failure during an initial mark pause may result in some root objects not being marked. Pass whether the caller is a root scanning closure into the evacuation failure handling code so that the thread that successfully forwards an object to itself also marks the object.

Reviewed-by: ysr, brutisso, tonyp
This commit is contained in:
John Cuthbertson 2011-09-20 15:39:17 -07:00
parent 95832db2e5
commit 3ae9021b59
3 changed files with 37 additions and 7 deletions
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3
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
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@ -822,7 +822,8 @@ protected:
void finalize_for_evac_failure();
// An attempt to evacuate "obj" has failed; take necessary steps.
oop handle_evacuation_failure_par(OopsInHeapRegionClosure* cl, oop obj);
oop handle_evacuation_failure_par(OopsInHeapRegionClosure* cl, oop obj,
bool should_mark_root);
void handle_evacuation_failure_common(oop obj, markOop m);
// Instance of the concurrent mark is_alive closure for embedding