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src/hotspot/share/gc/g1/g1ParScanThreadState.inline.hpp

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*** 23,32 **** --- 23,33 ---- */ #ifndef SHARE_VM_GC_G1_G1PARSCANTHREADSTATE_INLINE_HPP #define SHARE_VM_GC_G1_G1PARSCANTHREADSTATE_INLINE_HPP + #include "gc/g1/g1CollectedHeap.inline.hpp" #include "gc/g1/g1ParScanThreadState.hpp" #include "gc/g1/g1RemSet.hpp" #include "oops/access.inline.hpp" #include "oops/oop.inline.hpp"
*** 38,47 **** --- 39,54 ---- // set, due to (benign) races in the claim mechanism during RSet scanning more // than one thread might claim the same card. So the same card may be // processed multiple times, and so we might get references into old gen here. // So we need to redo this check. const InCSetState in_cset_state = _g1h->in_cset_state(obj); + // References pushed onto the work stack should never point to a humongous region + // as they are not added to the collection set due to above precondition. + assert(!in_cset_state.is_humongous(), + "Obj " PTR_FORMAT " should not refer to humongous region %u from " PTR_FORMAT, + p2i(obj), _g1h->addr_to_region((HeapWord*)obj), p2i(p)); + if (!in_cset_state.is_in_cset()) { // In this case somebody else already did all the work. return; }
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