From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 14 Nov 2002 20:18:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 14 Nov 2002 20:18:25 -0500 Received: from packet.digeo.com ([12.110.80.53]:45802 "EHLO packet.digeo.com") by vger.kernel.org with ESMTP id ; Thu, 14 Nov 2002 20:18:24 -0500 Message-ID: <3DD44CF4.6C28CF86@digeo.com> Date: Thu, 14 Nov 2002 17:25:08 -0800 From: Andrew Morton X-Mailer: Mozilla 4.79 [en] (X11; U; Linux 2.5.46 i686) X-Accept-Language: en MIME-Version: 1.0 To: Jeff Garzik CC: Christian Guggenberger , rl@hellgate.ch, linux-kernel@vger.kernel.org, Mikael Pettersson , mingo@redhat.com Subject: Re: Yet another IO-APIC problem (was Re: via-rhine weirdness withviakt8235 Southbridge) References: <20021115002822.G6981@pc9391.uni-regensburg.de> <20021115011738.D17058@pc9391.uni-regensburg.de> <3DD445EF.9080002@pobox.com> <3DD4481F.72627800@digeo.com> <3DD44B4E.3030102@pobox.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 15 Nov 2002 01:25:11.0685 (UTC) FILETIME=[D78E3B50:01C28C45] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeff Garzik wrote: > > Andrew Morton wrote: > > > Jeff Garzik wrote: > > > > >... > > >IMO we should just take out UP IOAPIC support in the kernel, or put a > > >big fat warning in the kernel config _and_ at boot... > > > > > > > > > It would be nice to get it working, because oprofile needs it. > > > > (Well, oprofile can use the rtc, but then it doesn't profile > > ints-off code) > > I don't see it happening, when uniprocessor mobo vendors (a) don't wire > it up, or (b) put buggy data in their MP tables... :( > OK. Actually, rtc-based profiling gives perfectly grand results for profiling userspace, and those people who want to profile their interrupt handlers presumably know where to buy a decent motherboard.