https://www.kernel.org/doc/Documentation/vm/overcommit-accounting https://www.kernel.org/doc/Documentation/vm/overcommit-accou... The default is to allow "sens

https://www.kernel.org/doc/Documentation/vm/overcommit-accounting https://www.kernel.org/doc/Documentation/vm/overcommit-accou... The default is to allow "sensible" overcommit whatever that means. From my experience whatever "sensible" is, really is sensible and I haven't had issue with that. You can also set it to allow all memory allocations, even "silly" ones (i.e. allocate 100GB memory on a system with 10GB RAM); or to refuse overcommiting memory.