From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755570AbZJNR5I (ORCPT ); Wed, 14 Oct 2009 13:57:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755449AbZJNR5G (ORCPT ); Wed, 14 Oct 2009 13:57:06 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:46658 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754590AbZJNR5E (ORCPT ); Wed, 14 Oct 2009 13:57:04 -0400 Date: Wed, 14 Oct 2009 19:56:16 +0200 From: Ingo Molnar To: Cyrill Gorcunov Cc: x86@kernel.org, yinghai@kernel.org, macro@linux-mips.org, linux-kernel@vger.kernel.org Subject: Re: [patch 3/3] x86,apic: limit apic dumping, introduce show_lapic setup option Message-ID: <20091014175616.GA3403@elte.hu> References: <20091013200702.019870576@openvz.org> <20091013201022.926793122@openvz.org> <20091014071217.GL784@elte.hu> <20091014150904.GA5259@lenovo> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091014150904.GA5259@lenovo> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org btw., i'm getting this warning on a test-box: [ 0.290000] Initializing cgroup subsys net_cls [ 0.300000] ------------[ cut here ]------------ [ 0.300000] WARNING: at arch/x86/kernel/apic/apic_noop.c:42 warn_apic_enabled+0x5d/0x80() [ 0.310000] Hardware name: System Product Name [ 0.320000] APIC: Called for NOOP operation with apic enabled [ 0.320000] Modules linked in: [ 0.330000] Pid: 0, comm: swapper Not tainted 2.6.32-rc4-tip-01511-g59b4c9d-dirty #1741 [ 0.330000] Call Trace: [ 0.340000] [<79061fa5>] warn_slowpath_common+0x65/0xa0 [ 0.340000] [<7903d84d>] ? warn_apic_enabled+0x5d/0x80 [ 0.350000] [<7906203f>] warn_slowpath_fmt+0x2f/0x50 [ 0.350000] [<7903d84d>] warn_apic_enabled+0x5d/0x80 [ 0.360000] [<7903da96>] noop_default_phys_pkg_id+0x16/0x30 [ 0.360000] [<79af1514>] generic_identify+0xa3/0x176 [ 0.370000] [<79af165f>] identify_cpu+0x78/0x1fd [ 0.370000] [<792c8d7d>] ? __init_rwsem+0x4d/0x70 [ 0.380000] [<79abcb54>] identify_boot_cpu+0xd/0x1e [ 0.380000] [<79abcdae>] check_bugs+0x16/0xe5 [ 0.390000] [<79ab6b39>] start_kernel+0x31d/0x342 [ 0.390000] [<79ab60aa>] i386_start_kernel+0xaa/0xc2 [ 0.400000] ---[ end trace a7919e7f17c0a725 ]--- [ 0.400000] Checking 'hlt' instruction... OK. [ 0.440000] SMP alternatives: switching to UP code [ 0.450000] debug: unmapping init memory 79c7a000..79c80000 noop_default_phys_pkg_id() should return 0 i guess, and not generate a warning? Ingo