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6850846: G1: extend G1 marking verification

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Extend G1 marking verification to use either the "prev" or "next" marking information, as appropriate.

Reviewed-by: johnc, ysr
This commit is contained in:
Antonios Printezis 2009-06-12 16:20:16 -04:00
parent 24f3527be2
commit f741e2fceb
5 changed files with 117 additions and 33 deletions
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15
hotspot/src/share/vm/gc_implementation/g1/concurrentMark.cpp
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@ -1157,6 +1157,13 @@ void ConcurrentMark::checkpointRootsFinal(bool clear_all_soft_refs) {
} else {
// We're done with marking.
JavaThread::satb_mark_queue_set().set_active_all_threads(false);
if (VerifyDuringGC) {
g1h->prepare_for_verify();
g1h->verify(/* allow_dirty */ true,
/* silent */ false,
/* use_prev_marking */ false);
}
}
#if VERIFY_OBJS_PROCESSED
@ -1747,12 +1754,12 @@ void ConcurrentMark::cleanup() {
// races with it goes around and waits for completeCleanup to finish.
g1h->increment_total_collections();
#ifndef PRODUCT
if (VerifyDuringGC) {
G1CollectedHeap::heap()->prepare_for_verify();
G1CollectedHeap::heap()->verify(true,false);
g1h->prepare_for_verify();
g1h->verify(/* allow_dirty */ true,
/* silent */ false,
/* use_prev_marking */ true);
}
#endif
}
void ConcurrentMark::completeCleanup() {