From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754489Ab2AYAEl (ORCPT ); Tue, 24 Jan 2012 19:04:41 -0500 Received: from mx1.redhat.com ([209.132.183.28]:1025 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754309Ab2AYAEk (ORCPT ); Tue, 24 Jan 2012 19:04:40 -0500 Date: Tue, 24 Jan 2012 19:04:34 -0500 From: Josh Boyer To: Suresh Siddha , yinghai@kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fedoraproject.org Subject: 3.2.1 Unable to reset IRR messages on boot Message-ID: <20120125000434.GC13655@zod.bos.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We've had a report [1] from users booting the 3.2.1 kernel and getting a large number of KERN_ERR messages that look like: [ 0.020902] Unable to reset IRR for apic: 2, pin :0 [ 0.020970] Unable to reset IRR for apic: 2, pin :1 [ 0.021012] Unable to reset IRR for apic: 2, pin :2 [ 0.021077] Unable to reset IRR for apic: 2, pin :3 [ 0.021138] Unable to reset IRR for apic: 2, pin :4 [ 0.021199] Unable to reset IRR for apic: 2, pin :5 [ 0.021261] Unable to reset IRR for apic: 2, pin :6 [ 0.021323] Unable to reset IRR for apic: 2, pin :7 Digging through git, it seems that error message was added to 3.2 with commit 1e75b31d63. The commit log mentions kdump, but I don't believe the user is doing kexec/kdump of any kind. It seems a normal yum update/reboot and they hit this. Are there any details the user can gather to help debug this, or has anyone seen this before? josh [1] https://bugzilla.redhat.com/show_bug.cgi?id=784445