From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752189AbbFZQBM (ORCPT ); Fri, 26 Jun 2015 12:01:12 -0400 Received: from devils.ext.ti.com ([198.47.26.153]:40542 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751954AbbFZQBF (ORCPT ); Fri, 26 Jun 2015 12:01:05 -0400 Date: Fri, 26 Jun 2015 11:01:01 -0500 From: Felipe Balbi To: Huang Ying CC: Kishon Vijay Abraham I , Felipe Balbi , LKML , LKP ML Subject: Re: [lkp] [usb] 56aa45adcc5: Fixed: WARNING: at kernel/mutex.c:199 mutex_lock_nested+0x121/0x349() Message-ID: <20150626160101.GA10056@saruman.tx.rr.com> Reply-To: References: <1435285950.24116.14.camel@intel.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="DocE+STaALJfprDB" Content-Disposition: inline In-Reply-To: <1435285950.24116.14.camel@intel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --DocE+STaALJfprDB Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Fri, Jun 26, 2015 at 10:32:30AM +0800, Huang Ying wrote: > FYI, we noticed the below changes on >=20 > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > commit 56aa45adcc5b793369e535a4b7177f1c7314b577 ("usb: gadget: make usb f= unctions to load before gadget driver") >=20 > This commit fixed an warning as below: >=20 > [ 8.571726] ------------[ cut here ]------------ > [ 8.572786] WARNING: at kernel/mutex.c:199 mutex_lock_nested+0x121/0x3= 49() > [ 8.572786] Hardware name: Standard PC (i440FX + PIIX, 1996) > [ 8.572786] Pid: 1, comm: swapper/0 Not tainted 3.9.0-rc1-00006-gfe2a4= 29 #884 > [ 8.572786] Call Trace: > [ 8.572786] [] warn_slowpath_common+0x77/0x91 > [ 8.572786] [] warn_slowpath_null+0x15/0x17 > [ 8.572786] [] mutex_lock_nested+0x121/0x349 > [ 8.572786] [] ? sched_clock+0x9/0xd > [ 8.572786] [] ? sched_clock_local+0x11/0x78 > [ 8.572786] [] ? gserial_alloc_line+0x2a/0x1c0 > [ 8.572786] [] gserial_alloc_line+0x2a/0x1c0 > [ 8.572786] [] ? gserial_alloc_line+0x2a/0x1c0 > [ 8.572786] [] acm_ms_bind+0x2d/0x7ab > [ 8.572786] [] ? mutex_unlock+0x9/0xb > [ 8.572786] [] ? sysfs_addrm_finish+0x16/0x52 > [ 8.572786] [] ? sysfs_add_file_mode+0xa8/0xdc > [ 8.572786] [] ? sysfs_add_file+0xd/0xf > [ 8.572786] [] ? sysfs_create_file+0x23/0x25 > [ 8.572786] [] ? device_create_file+0x14/0x16 > [ 8.572786] [] ? composite_dev_prepare+0xb0/0xe9 > [ 8.572786] [] composite_bind+0x9c/0x166 > [ 8.572786] [] ? m66592_probe+0x418/0x418 > [ 8.572786] [] udc_bind_to_driver+0x25/0xa6 > [ 8.572786] [] ? m66592_probe+0x418/0x418 > [ 8.572786] [] usb_gadget_probe_driver+0x75/0x88 > [ 8.572786] [] usb_composite_probe+0x8d/0x8f > [ 8.572786] [] init+0x10/0x12 > [ 8.572786] [] do_one_initcall+0x7a/0x13d > [ 8.572786] [] kernel_init_freeable+0x178/0x1fb > [ 8.572786] [] ? rest_init+0xb7/0xb7 > [ 8.572786] [] kernel_init+0x9/0xd1 > [ 8.572786] [] ret_from_fork+0x7c/0xb0 > [ 8.572786] [] ? rest_init+0xb7/0xb7 > [ 8.572786] ---[ end trace 220a440ac161c663 ]--- This warning is not available on your dmesg.xz > # > # Automatically generated file; DO NOT EDIT. > # Linux/x86_64 3.9.0-rc1 Kernel Configuration 3.9 ?? --=20 balbi --DocE+STaALJfprDB Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVjXc9AAoJEIaOsuA1yqREYF4QAIo3K9eb6fnXZ7nbIrCeUoIN fS9h4Tjl5TCXCqrOGwd7HZEwyx+wv8LFzm5A+ArLBRCHdG+Avii1vm0GDeIVteOR QEXG5j2JQGJ7EQLOLqOxJVgbURyH/1pHqZj8IgLVtYwRIYKnago6Ey/axOLt1fGN lh7NKLWTeR2oc9CwSvvfyC+/zF4lbUwQVx1+CLdH/jj0G70ymcyuppgS9OU2BB0Q XgMobRjg2HxvMtptQIcMLzH+VYFxsHTh//KNSoMm3RF0QHNBCYrXkiD/y+eUEICz jkCoWXcQuaw2PkWW1JEjdUS/x8g8W6/QE6gnIOOwN0pknxqMpu8h2bxx8s3/ytJP n5XeLee78C3nxuPGCt+GoDH4xIP+o2hf2L/Qnl2OawHXrT/CQK6nZ/7yn8p+T1Bu YNIk4kcKbRVFW/eqgfRSr3A1mG3KlDE259DGbfmDWT6Q+nAAxF8xtkhqBddpHZ7L qaRtPt4nmy4BwFrGa2JnLd3DOzMjsPTNMk0kgmEOPLBXsYTsQqvYBWephZpLUY7s UGJe/OFhBHCqlNWHqcYseViwOsC43Cu+XLyjiV1gLwG7imGNLdmCaQRhi/tJL5kL Tq3oFusFZqv1kxqnDQjeOwmKWQYRmIHaFHXh2jFVvmpE/IRsTTB3LI3pUgZeVWJf m/5PwPaXeDRNjvMaiA+m =vFDm -----END PGP SIGNATURE----- --DocE+STaALJfprDB--