From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932740AbWANGs2 (ORCPT ); Sat, 14 Jan 2006 01:48:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932745AbWANGs1 (ORCPT ); Sat, 14 Jan 2006 01:48:27 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:15053 "EHLO mx2.mail.elte.hu") by vger.kernel.org with ESMTP id S932769AbWANGs0 (ORCPT ); Sat, 14 Jan 2006 01:48:26 -0500 Date: Sat, 14 Jan 2006 07:48:36 +0100 From: Ingo Molnar To: Andrew Morton Cc: Miroslaw Mieszczak , linux-kernel@vger.kernel.org, Zwane Mwaikambo , "Seth, Rohit" Subject: Re: [2.6] Problem with PDC20265 on system with I865 chipset and PIV HT Message-ID: <20060114064836.GB9699@elte.hu> References: <43C6DA9D.4060300@mieszczak.com.pl> <20060113001618.66821fcb.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060113001618.66821fcb.akpm@osdl.org> User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: -2.1 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.1 required=5.9 tests=ALL_TRUSTED,AWL autolearn=no SpamAssassin version=3.0.3 -2.8 ALL_TRUSTED Did not pass through any untrusted hosts 0.7 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org * Andrew Morton wrote: > That's oopsing when trying to write to the APIC: > > apic_write_around(APIC_EOI, 0); > > > > Is there any sane way in which APIC accesses can fault, or does this > indicate bad hardware? no - the local APIC in that context is like ordinary memory. If there's fault, it must be the pagetables. perhaps the "data corruption and system crash" mentioned in the report corrupted kernel pagetables? Ingo