From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 31 Oct 2001 16:42:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 31 Oct 2001 16:41:56 -0500 Received: from h55p103-2.delphi.afb.lu.se ([130.235.187.175]:9686 "EHLO gin") by vger.kernel.org with ESMTP id ; Wed, 31 Oct 2001 16:41:45 -0500 Date: Wed, 31 Oct 2001 22:42:01 +0100 To: Mikael Pettersson Cc: linux-kernel@vger.kernel.org Subject: Re: Local APIC option (CONFIG_X86_UP_APIC) locks up Inspiron 8100 Message-ID: <20011031224201.B6285@h55p111.delphi.afb.lu.se> In-Reply-To: <200110312011.VAA28277@harpo.it.uu.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200110312011.VAA28277@harpo.it.uu.se> User-Agent: Mutt/1.3.23i From: andersg@0x63.nu Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 31, 2001 at 09:11:38PM +0100, Mikael Pettersson wrote: > I wrote: > > > Not all BIOS firmware can cope when we switch to UP-APIC. Some laptops > > > really don't like it one bit. > > > >Correct, and the I8x00 is the prime example of that. > > > >I have a fix, but it involves fairly major surgery: > >- Implement bt_ioremap()/bt_iounmap() which work at early boot-time (the > > normal ioremap doesn't work yet). > >... > >The patch is still _very_ rough, but it seems to work. Let me know if you want it. > > The patch is now available at > http://www.csd.uu.se/~mikpe/linux/patch-2.4.13ac5-init-order-5 The same problem appears on "Dell Latitude C810". So that should probably be added to the dmi-backlist too. -- //anders/g