NvMapReserveOp 0x80000002 failed 
This was created in a situation where memory resources may have been stressed, but on the call where it rises doesn’t really have anything to do with allocation or freeing memory. We’ve been having trouble replicating it because it occurs rarely (but not rarely enough that it doesn’t cause a problem for us), and we are still going through investigations of our own. So I’m not at the point yet of providing example code, or give a definite example of “when I do this, this happens”.
I’ve been following this thread as well, and AastaLLL does say that the team is looking into it.
However, I was wondering if any clarity could be provided about this message.
NvMapReserveOp doesn’t appear in any manuals I’ve come across, and I can’t seem to find it mentioned in any of the CUDA libraries. Some low level operator? Where does it come from? Does the 0x80000002 following it refer to a register? Other threads have 0 and 1, but ours is the first I’ve seen of 2. What does the number in the […] mean? The other threads mentioning this also have different numbers, but if it is a cudaError code, 12 cudaErrorInvalidPitchValue doesn’t seem quite right.