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6423256: GC stacks should use a better data structure

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6942771: SEGV in ParScanThreadState::take_from_overflow_stack

Reviewed-by: apetrusenko, ysr, pbk
This commit is contained in:
John Coomes 2010-09-28 15:56:15 -07:00
parent aff36499e7
commit 1cdd538ea5
30 changed files with 718 additions and 402 deletions
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5
hotspot/src/share/vm/gc_implementation/parallelScavenge/pcTasks.cpp
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@ -59,8 +59,6 @@ void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
ParCompactionManager* cm =
ParCompactionManager::gc_thread_compaction_manager(which);
assert(cm->stacks_have_been_allocated(),
"Stack space has not been allocated");
PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
switch (_root_type) {
@ -119,7 +117,6 @@ void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
// Do the real work
cm->follow_marking_stacks();
// cm->deallocate_stacks();
}
@ -135,8 +132,6 @@ void RefProcTaskProxy::do_it(GCTaskManager* manager, uint which)
PrintGCDetails && TraceParallelOldGCTasks, true, gclog_or_tty));
ParCompactionManager* cm =
ParCompactionManager::gc_thread_compaction_manager(which);
assert(cm->stacks_have_been_allocated(),
"Stack space has not been allocated");
PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
PSParallelCompact::FollowStackClosure follow_stack_closure(cm);
_rp_task.work(_work_id, *PSParallelCompact::is_alive_closure(),