Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754114AbbG0Qfl (ORCPT ); Mon, 27 Jul 2015 12:35:41 -0400 Received: from mga01.intel.com ([192.55.52.88]:65195 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753428AbbG0Qfk (ORCPT ); Mon, 27 Jul 2015 12:35:40 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,555,1432623600"; d="scan'208";a="613813868" Subject: Re: Regression in v4.2-rc1 caused by hierarchical irqdomain changes To: Matt Fleming References: <20150727152107.GA3571@codeblueprint.co.uk> Cc: Thomas Gleixner , linux-kernel@vger.kernel.org, "H. Peter Anvin" , Ingo Molnar , Wolfram Sang , linux-i2c@vger.kernel.org From: Jiang Liu Organization: Intel Message-ID: <55B65DD8.9020002@linux.intel.com> Date: Tue, 28 Jul 2015 00:35:36 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: <20150727152107.GA3571@codeblueprint.co.uk> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1197 Lines: 28 On 2015/7/27 23:21, Matt Fleming wrote: > A git bisect just pointed me at commit d32932d02e18 ("x86/irq: Convert > IOAPIC to use hierarchical irqdomain interfaces") as the reason for why > the trackpad on my Dell XPS13 is no longer working with v4.2-rc1. > > I'm now seeing the following errors when booting, > > [ 1.615017] i2c_designware INT3433:00: controller timed out > [ 1.642496] i2c_designware INT3433:00: timeout in disabling adapter > [ 1.642500] i2c_hid i2c-DLL0665:01: hid_descr_cmd failed > > I tried commit d32932d02e18~1, which works, and things definitely break > starting with commit d32932d02e18. > > Any suggestions or requests to try and diagnose why the irqdomain > changes broke this i2c controller driver? Hi Matt, Sorry for the regression. Could you please help to provide more information about the regression, such dmesg, /proc/interrupts and hardware(PCI) info from good and bad kernels? Thanks! Gerry -- 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/