Comment 92 for bug 1751460

(In reply to dytynenko.roman from comment #28)
> ulimit -a returned virtual memory unlimited, but I figured out that this
> error was triggered because I explicitly disabled overcommit by
> vm.overcommit_memory = 2
> setting it to 1 fixed the issue

OVERCOMMIT_NEVER (2) makes mmap's flag MAP_NORESERVE meaningless.
It makes Gigacage address space allocation failed.
https://github.com/torvalds/linux/blob/master/mm/mmap.c#L1475
So it sounds reasonable to me that vm.overcommit_memory=0 or 1 fixes this issue.