I expect it does already, but I don’t think it would help here: > In mode 2 the MAP_NORESERVE flag is ignored. https://www.kernel.org/doc/Documentation/vm/ove

I expect it does already, but I don’t think it would help here: > In mode 2 the MAP_NORESERVE flag is ignored. https://www.kernel.org/doc/Documentation/vm/overcommit-accounting https://www.kernel.org/doc/Documentation/vm/overcommit-accou...