From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262431AbVBYKop (ORCPT ); Fri, 25 Feb 2005 05:44:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262669AbVBYKop (ORCPT ); Fri, 25 Feb 2005 05:44:45 -0500 Received: from ns.suse.de ([195.135.220.2]:4815 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S262431AbVBYKoo (ORCPT ); Fri, 25 Feb 2005 05:44:44 -0500 Date: Fri, 25 Feb 2005 11:44:31 +0100 From: Andi Kleen To: "David S. Miller" Cc: Hugh Dickins , nickpiggin@yahoo.com.au, ak@suse.de, benh@kernel.crashing.org, torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] page table iterators Message-ID: <20050225104431.GE14026@verdi.suse.de> References: <20050217235719.GB31591@wotan.suse.de> <4218840D.6030203@yahoo.com.au> <421B0163.3050802@yahoo.com.au> <421D1737.1050501@yahoo.com.au> <1109224777.5177.33.camel@npiggin-nld.site> <20050224113350.3b6ebdd9.davem@davemloft.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050224113350.3b6ebdd9.davem@davemloft.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 24, 2005 at 11:33:50AM -0800, David S. Miller wrote: > On Thu, 24 Feb 2005 11:58:42 +0000 (GMT) > Hugh Dickins wrote: > > > Has anyone _ever_ seen a p??_ERROR message? > > It triggers when you're writing new platform pagetable support > or making drastric changes in same. But on sparc64 I've set > them all to nops to make the code output smaller. :-) I don't think it's useful except for early debugging. Also at least on i386/x86-64 the CPU sets a bit in the page fault handler when it encounters a corrupted page table. On x86-64 it is handled (not on i386) -Andi