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                                            James Dolan

Spin lock on volatile variable without an explicit barrier is extremely unsafe

https://github.com/NVIDIAGameWorks/PhysX/blob/4050bbfdc2699dfab7edbf0393df8ff96bbe06c5/physx/source/foundation/src/windows/PsWindowsMutex.cpp#L148 Both the Unix and Windows ReadWriteLock implementation from 3.4 to 4.1 spins on a volatile variable without an explicit barrier is incredibly unsafe. Volatile only guarantees the compiler won't...