From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264478AbTLKIm0 (ORCPT ); Thu, 11 Dec 2003 03:42:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264490AbTLKIm0 (ORCPT ); Thu, 11 Dec 2003 03:42:26 -0500 Received: from main.gmane.org ([80.91.224.249]:43659 "EHLO main.gmane.org") by vger.kernel.org with ESMTP id S264478AbTLKImY (ORCPT ); Thu, 11 Dec 2003 03:42:24 -0500 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: mru@kth.se (=?iso-8859-1?q?M=E5ns_Rullg=E5rd?=) Subject: Re: udev sysfs docs Re: State of devfs in 2.6? Date: Thu, 11 Dec 2003 09:42:21 +0100 Message-ID: References: <3FD78645.9090300@wmich.edu> <20031211015348.GA23489@mark.mielke.cc> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@sea.gmane.org User-Agent: Gnus/5.1002 (Gnus v5.10.2) XEmacs/21.4 (Rational FORTRAN, linux) Cancel-Lock: sha1:gAD+ZyTNSJRSjJq4uxYaO1g6AP0= Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Mark Mielke writes: > I was under the impression, that on the x86 processors, it is not > possible to have more than ~640Kb of 'unswappable' > memory. Everything else *is* swappable. Swappable or not doesn't depend on physical memory address. It depends on whether the kernel memory management allows it or not. No Linux kernels to date will swap out kernel memory. The swappability of a page is determined by some flags when it is allocated. > Perhaps somebody with understanding could enlighten us on this point? > > Is kernel code swappable if compiled in statically? I have assumed > that it is. That's not the way it works. -- Måns Rullgård mru@kth.se