Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265871AbUA2MZL (ORCPT ); Thu, 29 Jan 2004 07:25:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265895AbUA2MZL (ORCPT ); Thu, 29 Jan 2004 07:25:11 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:16091 "EHLO fgwmail6.fujitsu.co.jp") by vger.kernel.org with ESMTP id S265871AbUA2MZE (ORCPT ); Thu, 29 Jan 2004 07:25:04 -0500 Date: Thu, 29 Jan 2004 21:24:52 +0900 From: Hironobu Ishii Subject: Re: [RFC/PATCH, 2/4] readX_check() performance evaluation To: Linus Torvalds , Andi Kleen Cc: willy@debian.org, linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org Message-id: <00ad01c3e662$e893ce10$2987110a@lsd.css.fujitsu.com> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Mailer: Microsoft Outlook Express 6.00.2800.1158 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: 7bit X-Priority: 3 X-MSMail-priority: Normal References: <00a301c3e541$c13a6350$2987110a@lsd.css.fujitsu.com> <20040128182003.GL11844@parcelfarce.linux.theplanet.co.uk> <20040128204049.627e6312.ak@suse.de> <20040128211554.0cc890fb.ak@suse.de> <20040128220921.7ba0bb78.ak@suse.de> <20040128225205.02193769.ak@suse.de> <20040128233948.26a36ff7.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 38 From: "Linus Torvalds" To: "Andi Kleen" Cc: ; ; ; Sent: Thursday, January 29, 2004 7:59 AM Subject: Re: [RFC/PATCH, 2/4] readX_check() performance evaluation > > > On Wed, 28 Jan 2004, Andi Kleen wrote: > > > Doing a status read from the device should do it (just read the config > > > space, for example). > > > > The device is just not known. iirc you only get a bit in the bridge, which > > leaves a wide choice. > > read_pcix_error() _does_ know the device. The driver tells it. > > Remember: none of this should be done at machine check time. > > Linus Thank you for a lot of comments. I prefer Linus's I/F than callback(exception) I/F, because I can recover from intermittent errors. I'd need time to consider how to map these I/F onto ia64 platform. Later, I will post the result. Thank you. Hironobu Ishii - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/