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Threads may try to acquire two locks in different orders, potentially causing deadlock Defect 100781 (STATIC_C) Checker ORDER_REVERSAL (subcategory none) File: /src/mongo/db/repl/database_cloner.cpp Function mongo::repl::DatabaseCloner::_collectionClonerCallback(const mongo::Status &, const mongo::NamespaceString &)

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william.schultz commented on Thu, 6 Jul 2017 16:26:43 +0000: The Coverity analysis claims that we recursively acquire the DatabaseCloner::_mutex in DatabaseCloner::_collectionClonerCallback when we call DatabaseCloner::_finishCallback_inlock which calls DatabaseCloner::_finishCallback_inlock. However, DatabaseCloner::_finishCallback_inlock always unlocks the lock first if necessary, avoiding this scenario.

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