From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 27 Sep 2000 13:55:52 +0100 (BST) From: Hugh Dickins Subject: Re: the new VMt In-Reply-To: <20000927181334.A14797@saw.sw.com.sg> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrey Savochkin Cc: Mark Hemment , MM mailing list , linux-kernel@vger.kernel.org List-ID: On Wed, 27 Sep 2000, Andrey Savochkin wrote: > > It's a waste of resources to reserve memory+swap for the case that every > running process decides to modify libc code (and, thus, should receive its > private copy of the pages). A real waste! A real waste indeed, but a bad example: libc code is mapped read-only, so nobody would recommend reserving memory+swap for private mods to it. Of course, a process might choose to mprotect it writable at some time, that would be when to refuse if overcommitted. Hugh -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/