From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755793Ab1KQDkN (ORCPT ); Wed, 16 Nov 2011 22:40:13 -0500 Received: from lennier.cc.vt.edu ([198.82.162.213]:44031 "EHLO lennier.cc.vt.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755467Ab1KQDkL (ORCPT ); Wed, 16 Nov 2011 22:40:11 -0500 X-Mailer: exmh version 2.7.2 01/07/2005 with nmh-1.3-dev To: Peter Zijlstra , Ingo Molnar Cc: linux-kernel@vger.kernel.org Subject: linux-next-20111108 lockdep whinge From: Valdis.Kletnieks@vt.edu Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1321501170_2949P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Wed, 16 Nov 2011 22:39:30 -0500 Message-ID: <6532.1321501170@turing-police.cc.vt.edu> X-Mirapoint-Received-SPF: 198.82.161.152 auth3.smtp.vt.edu Valdis.Kletnieks@vt.edu 2 pass X-Junkmail-Status: score=10/50, host=vivi.cc.vt.edu X-Junkmail-Signature-Raw: score=unknown, refid=str=0001.0A02020A.4EC481F5.00E3,ss=1,fgs=0, ip=0.0.0.0, so=2010-07-22 22:03:31, dmn=2009-09-10 00:05:08, mode=single engine X-Junkmail-IWF: false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1321501170_2949P Content-Type: text/plain; charset=us-ascii Seen in dmesg during early boot. Not sure if this is a lockdep issue, or a sched-rt issue, but MAINTAINERS says to ping the same people either way, so.... :) Sorry, no known reproducer, have only seen this once in the last week. [ 4.204350] usb 6-1: USB disconnect, device number 2 [ 6.660444] usb 6-1: new low-speed USB device number 3 using uhci_hcd [ 6.683460] INFO: trying to register non-static key. [ 6.684344] the code is fine but needs lockdep annotation. [ 6.684417] turning off the locking correctness validator. [ 6.684417] Pid: 74, comm: irq/20-uhci_hcd Not tainted 3.2.0-rc1-next-20111108 #38 [ 6.684417] Call Trace: [ 6.684417] [] register_lock_class+0x102/0x2c6 [ 6.684417] [] ? register_lock_class+0x1e/0x2c6 [ 6.684417] [] ? register_lock_class+0x1e/0x2c6 [ 6.684417] [] ? validate_chain+0x5a/0x39d [ 6.684417] [] __lock_acquire+0xbd/0x3e2 [ 6.684417] [] ? double_rq_lock+0x70/0x79 [ 6.684417] [] lock_acquire+0x103/0x153 [ 6.684417] [] ? double_rq_lock+0x70/0x79 [ 6.684417] [] _raw_spin_lock_nested+0x3a/0x49 [ 6.684417] [] ? double_rq_lock+0x70/0x79 [ 6.684417] [] ? _raw_spin_lock+0x3e/0x45 [ 6.684417] [] ? double_rq_lock+0x51/0x79 [ 6.684417] [] double_rq_lock+0x70/0x79 [ 6.684417] [] double_lock_balance+0x4f/0x5d [ 6.684417] [] find_lock_lowest_rq+0x5a/0xfe [ 6.684417] [] push_rt_task.part.61+0xad/0x149 [ 6.684417] [] post_schedule_rt+0x1b/0x23 [ 6.684417] [] post_schedule.part.21+0x2b/0x45 [ 6.684417] [] __schedule+0x720/0x766 [ 6.684417] [] ? irq_thread_fn+0x37/0x37 [ 6.684417] [] schedule+0x55/0x57 [ 6.684417] [] irq_thread+0x18b/0x1c9 [ 6.684417] [] ? irq_finalize_oneshot+0xc9/0xc9 [ 6.684417] [] kthread+0x7f/0x87 [ 6.684417] [] kernel_thread_helper+0x4/0x10 [ 6.684417] [] ? retint_restore_args+0xe/0xe [ 6.684417] [] ? __init_kthread_worker+0x55/0x55 [ 6.684417] [] ? gs_change+0xb/0xb [ 6.896264] usb 6-1: New USB device found, idVendor=0e8f, idProduct=0020 [ 6.897516] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 6.898848] usb 6-1: Product: PS2toUSB Adapter [ 6.899718] usb 6-1: Manufacturer: GASIA [ 6.917981] input: GASIA PS2toUSB Adapter as /devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1:1.0/input/input13 --==_Exmh_1321501170_2949P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Exmh version 2.5 07/13/2001 iD8DBQFOxIHycC3lWbTT17ARAurTAKDNgWbejVGkTCXtWtTQdzENsch6dQCfWrdx 9ghuhOB83QqchCI1YJDv1tE= =CB2C -----END PGP SIGNATURE----- --==_Exmh_1321501170_2949P--