Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030226AbVINQLA (ORCPT ); Wed, 14 Sep 2005 12:11:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030227AbVINQLA (ORCPT ); Wed, 14 Sep 2005 12:11:00 -0400 Received: from gold.veritas.com ([143.127.12.110]:27919 "EHLO gold.veritas.com") by vger.kernel.org with ESMTP id S1030226AbVINQK7 (ORCPT ); Wed, 14 Sep 2005 12:10:59 -0400 Date: Wed, 14 Sep 2005 17:10:37 +0100 (BST) From: Hugh Dickins X-X-Sender: hugh@goblin.wat.veritas.com To: Torsten Foertsch cc: linux-kernel@vger.kernel.org Subject: Re: COW pages and paging question In-Reply-To: <200509141214.32946.torsten.foertsch@gmx.net> Message-ID: References: <200509141214.32946.torsten.foertsch@gmx.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-OriginalArrivalTime: 14 Sep 2005 16:10:53.0273 (UTC) FILETIME=[E18A8C90:01C5B946] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 581 Lines: 15 On Wed, 14 Sep 2005, Torsten Foertsch wrote: > > when a process forks it's pages become shared by COW. Now one or both > processes are written partially to the swap space. Later some pages are paged > in. > > Are they still shared between the 2 processes? (Assuming they are not written > to and cover the same address range) Yes. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/