> Why aren't people just setting the sysctl to a petabyte? What problems > would that lead to? Historically - hanging on real world desktop systems when someone accidentally creates a giant SHM segment and maps it. If you are running with vm overcmmit set to actually do checks then it *shouldn't* blow up nowdays. More to the point wtf are people still using prehistoric sys5 IPC APIs not shmemfs/posix shmem ? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>