"Craig A. James" <cjames@xxxxxxxxxxxxxxxx> writes: > Here's something I found googling for "memory overcommitment"+linux > http://archives.neohapsis.com/archives/postfix/2000-04/0512.html That might have been right when it was written (note the reference to a 2.2 Linux kernel), but it's 100% wrong now. 0 is the default, not-safe setting. regards, tom lane