From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1424552AbcFMOoM (ORCPT ); Mon, 13 Jun 2016 10:44:12 -0400 Received: from mail-wm0-f53.google.com ([74.125.82.53]:38595 "EHLO mail-wm0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1424154AbcFMOoJ (ORCPT ); Mon, 13 Jun 2016 10:44:09 -0400 Date: Mon, 13 Jun 2016 15:44:06 +0100 From: Matt Fleming To: Lukas Wunner Cc: Ingo Molnar , x86@kernel.org, linux-kernel@vger.kernel.org, Bjorn Helgaas , Yinghai Lu , Linus Torvalds , Andrew Morton , Thomas Gleixner , "H. Peter Anvin" Subject: Re: [PATCH v2 3/3] x86/quirks: Add early quirk to reset Apple AirPort card Message-ID: <20160613144406.GF2658@codeblueprint.co.uk> References: <48d0972ac82a53d460e5fce77a07b2560db95203.1465690253.git.lukas@wunner.de> <20160612114902.GA15940@gmail.com> <20160612123726.GA20653@wunner.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160612123726.GA20653@wunner.de> User-Agent: Mutt/1.5.24+41 (02bc14ed1569) (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 12 Jun, at 02:37:26PM, Lukas Wunner wrote: > > Resetting the card solves the problem at the root and fixes both, > the spurious interrupts and the memory corruption. It also avoids the need to figure out exactly which Boot Services regions may have become corrupt. This would be necessary since you can't keep all Boot Services regions reserved because those regions can add up to be many gigabytes in size, even on relatively low-end laptops that don't have huge amounts of RAM to begin with. Freeing Boot Services regions is pretty important.