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6689653: JMapPerm fails with UseConcMarkSweepIncGC and compressed oops off

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Added safe_object_iterate() for use by JMapPerm.

Reviewed-by: tonyp
This commit is contained in:
Jon Masamitsu 2009-01-06 07:05:05 -08:00
parent 34c4172bfe
commit 3474623106
16 changed files with 100 additions and 2 deletions
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11
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
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@ -3017,6 +3017,16 @@ ConcurrentMarkSweepGeneration::object_iterate(ObjectClosure* cl) {
}
}
void
ConcurrentMarkSweepGeneration::safe_object_iterate(ObjectClosure* cl) {
if (freelistLock()->owned_by_self()) {
Generation::safe_object_iterate(cl);
} else {
MutexLockerEx x(freelistLock(), Mutex::_no_safepoint_check_flag);
Generation::safe_object_iterate(cl);
}
}
void
ConcurrentMarkSweepGeneration::pre_adjust_pointers() {
}
@ -7001,7 +7011,6 @@ void MarkFromRootsClosure::scanOopsInOop(HeapWord* ptr) {
_mut->clear_range(mr);
}
DEBUG_ONLY(})
// Note: the finger doesn't advance while we drain
// the stack below.
PushOrMarkClosure pushOrMarkClosure(_collector,