From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753071AbbF2AbJ (ORCPT ); Sun, 28 Jun 2015 20:31:09 -0400 Received: from mga11.intel.com ([192.55.52.93]:41619 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752877AbbF2Aa7 (ORCPT ); Sun, 28 Jun 2015 20:30:59 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,695,1427785200"; d="scan'208";a="752163056" Message-ID: <1435537857.12618.18.camel@intel.com> Subject: Re: [lkp] [usb] 56aa45adcc5: Fixed: WARNING: at kernel/mutex.c:199 mutex_lock_nested+0x121/0x349() From: Huang Ying To: balbi@ti.com Cc: Kishon Vijay Abraham I , LKML , LKP ML Date: Mon, 29 Jun 2015 08:30:57 +0800 In-Reply-To: <20150626160101.GA10056@saruman.tx.rr.com> References: <1435285950.24116.14.camel@intel.com> <20150626160101.GA10056@saruman.tx.rr.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.16.3-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2015-06-26 at 11:01 -0500, Felipe Balbi wrote: > Hi, > > On Fri, Jun 26, 2015 at 10:32:30AM +0800, Huang Ying wrote: > > FYI, we noticed the below changes on > > > > git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > > master > > commit 56aa45adcc5b793369e535a4b7177f1c7314b577 ("usb: gadget: make > > usb functions to load before gadget driver") > > > > This commit fixed an warning as below: > > > > [ 8.571726] ------------[ cut here ]------------ > > [ 8.572786] WARNING: at kernel/mutex.c:199 > > mutex_lock_nested+0x121/0x349() > > [ 8.572786] Hardware name: Standard PC (i440FX + PIIX, 1996) > > [ 8.572786] Pid: 1, comm: swapper/0 Not tainted 3.9.0-rc1-00006 > > -gfe2a429 #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 As I said above, the commit FIXED the warning as abvoe in prev_dmesg.xz. Best Regards, Huang, Ying > > # > > # Automatically generated file; DO NOT EDIT. > > # Linux/x86_64 3.9.0-rc1 Kernel Configuration > > 3.9 ?? >