Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934440Ab3CNQjM (ORCPT ); Thu, 14 Mar 2013 12:39:12 -0400 Received: from hydra.sisk.pl ([212.160.235.94]:42588 "EHLO hydra.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932487Ab3CNQjI (ORCPT ); Thu, 14 Mar 2013 12:39:08 -0400 From: "Rafael J. Wysocki" To: Jiri Kosina Cc: Alan Stern , Peter Hurley , Thomas Meyer , Shawn Starr , Kernel development list , USB list , linux-acpi@vger.kernel.org, Bjorn Helgaas , linux-pci@vger.kernel.org, Yinghai Lu Subject: Re: [3.9-rc1] irq 16: nobody cared (was [3.9-rc1] very poor interrupt responses) Date: Thu, 14 Mar 2013 17:46:10 +0100 Message-ID: <1460519.ejNFI1DrGk@vostro.rjw.lan> User-Agent: KMail/4.9.5 (Linux/3.9.0-rc1+; KDE/4.9.5; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1539 Lines: 43 On Thursday, March 14, 2013 05:09:59 PM Jiri Kosina wrote: > On Thu, 14 Mar 2013, Jiri Kosina wrote: > > > > > I don't think I have seen this message on rc1+ (8343bce, to be precise), > > > > but I have definitely seen sluggish system response on that kernel as > > > > well. > > > > > > > > Attaching lspci, /proc/interrupts and dmesg. > > > > > > Can you try to do a git bisect for this? Is the sluggish system > > > response clear enough that you can tell reliably when it is present and > > > when it isn't? > > > > That was my first thought, but unfortunately I am afraid there will be > > point at which I will easily make a bisection mistake, as the > > responsiveness of the system varies over time, so it's not really a > > 100% objective measure. > > So I will try a bisect, but it'll take some time so that I could claim it > to be trustworthy. > > Therefore in case anyone has any idea in parallel, I am all ears. This one is a candidate to focus on I think: commit 181380b702eee1a9aca51354d7b87c7b08541fcf Author: Yinghai Lu Date: Sat Feb 16 11:58:34 2013 -0700 PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- 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/