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Operating System:
ALL
Steps To Reproduce:

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This code was taken from a threaded test. I don't think it needs to be threaded to hit the issue.

Initialization code:
boost::thread_specific_ptr<mongo::newlm::ResourceId> resId;
boost::thread_specific_ptr<Locker> locker;
mongo::newlm::LockMode lockMode = mongo::newlm::MODE_X
resId.reset(new mongo::newlm::ResourceId(mongo::newlm::RESOURCE_COLLECTION, std::string("TestDB.collection")
locker.reset(new mongo::newlm::LockerImpl());

And then this code in a loop
locker->lock(*resId, lockMode);
locker->unlockAll();

Or pull from here: https://github.com/dalyd/mongo/commit/2d62983ae826a7674ac45b83d0986cb84f90befb
lock_mgr_perf branch.
scons dbtest
./dbtest perf

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This code was taken from a threaded test. I don't think it needs to be threaded to hit the issue. Initialization code: boost::thread_specific_ptr<mongo::newlm::ResourceId> resId; boost::thread_specific_ptr<Locker> locker; mongo::newlm::LockMode lockMode = mongo::newlm::MODE_X resId.reset(new mongo::newlm::ResourceId(mongo::newlm::RESOURCE_COLLECTION, std::string("TestDB.collection") locker.reset(new mongo::newlm::LockerImpl()); And then this code in a loop locker->lock(*resId, lockMode); locker->unlockAll(); Or pull from here: https://github.com/dalyd/mongo/commit/2d62983ae826a7674ac45b83d0986cb84f90befb lock_mgr_perf branch. scons dbtest ./dbtest perf
Confidence Status:
None
Work Order:
0

Locking a resource MODE_X without first getting a global MODE_IX lock causes an invariant failure and crashes.

2014-10-02T09:45:58.583-0400 I - [perftestthr] Invariant failure request src/mongo/db/concurrency/lock_state.cpp 519