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src/share/vm/gc/g1/g1CollectedHeap.cpp
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@@ -4387,10 +4387,19 @@
}
rp->verify_no_references_recorded();
assert(!rp->discovery_enabled(), "should have been disabled");
+ // If during an initial mark pause we install a pending list head which is not otherwise reachable
+ // ensure that it is marked in the bitmap for concurrent marking to discover.
+ if (collector_state()->during_initial_mark_pause()) {
+ oop pll_head = Universe::reference_pending_list();
+ if (pll_head != NULL) {
+ _cm->grayRoot(pll_head);
+ }
+ }
+
// FIXME
// CM's reference processing also cleans up the string and symbol tables.
// Should we do that here also? We could, but it is a serial operation
// and could significantly increase the pause time.
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