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< TableWalker::walk(RequestPtr _req, ThreadContext *_tc, uint16_t _asid,
---
> TableWalker::walk(const RequestPtr &_req, ThreadContext *_tc, uint16_t _asid,
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< RequestPtr req = new Request(descAddr, numBytes, flags, masterId);
---
> RequestPtr req = std::make_shared<Request>(
> descAddr, numBytes, flags, masterId);
>
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< delete req;