Data race condition

The value of the shared data will be determined by the interleaving of thread execution. Thread shared data is accessed without holding an appropriate lock, possibly causing a race condition
/src/mongo/db/s/ready_range_deletions_processor.cpp:82: MISSING_LOCK 183886 Accessing "this->this->_beginProcessingSignal" without holding lock "mongo::ReadyRangeDeletionsProcessor._mutex". Elsewhere, "mongo::ReadyRangeDeletionsProcessor._beginProcessingSignal" is written to with "ReadyRangeDeletionsProcessor._mutex" held 2 out of 2 times.