From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751512AbdE3PBs (ORCPT ); Tue, 30 May 2017 11:01:48 -0400 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:38186 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751106AbdE3PBr (ORCPT ); Tue, 30 May 2017 11:01:47 -0400 X-IronPort-AV: E=Sophos;i="5.38,418,1491235200"; d="scan'208";a="22717053" From: Bart Van Assche To: "xiaolong.ye@intel.com" CC: "hch@lst.de" , "linux-kernel@vger.kernel.org" , "hare@suse.com" , "osandov@fb.com" , "lkp@01.org" , "ming.lei@redhat.com" Subject: Re: [lkp-robot] [block] c4e7d723f3: WARNING:at_block/blk-merge.c:#attempt_merge Thread-Topic: [lkp-robot] [block] c4e7d723f3: WARNING:at_block/blk-merge.c:#attempt_merge Thread-Index: AQHS13RMFO9BNBjFn0uyAmpWIkyYz6IM/DuA Date: Tue, 30 May 2017 15:01:10 +0000 Message-ID: <1496156469.2627.0.camel@sandisk.com> References: <20170528053325.GA16271@yexl-desktop> In-Reply-To: <20170528053325.GA16271@yexl-desktop> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=sandisk.com; x-originating-ip: [63.163.107.100] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;CY1PR0401MB1535;7:Z3l01vrChMlO8Z0I3IPYXrj4qYxhuFrQ9YMSfcBHFRR2TAvaEc9iJFy78Z6XqqE4ygpyEL6uMeLCMEJrls0hrKHWZ7eB/xYJe5ippNnBVIICceHNpGd/hsf3k1ZUXHSzg+UEhOisI6aFa/YKcXao273a7JsaRUa7TJr8Z6ey4SxkmSx+BsMPKTgbeR/EeyDSAPmt0i6iN9q0e9CqtuxGVu9FImOncGWR3TYPg6QVppyBLm16uIB3XUmsRsKsRL0na9eNGGfXl4VzK2wP4IK2HBfPgg3aXfEWrfXPNGuGk7lKOYv7aifu7uNVJ1KE0GDsWNX7Dkr3P+yMHnL7i7c98Q==;20:dX8amY6NqmKLYg6EzYeisrQYSQBWxm/3x3z+2uM95E6/+rUmuzAfOPfa/wEvgN+lCZ0UKKxlbYNaOf9RPeQo3DFaFQ3WxLp8HDx3svZLn/n8mNuyXzEBNBF7uEbcrZUt1uTjZToFkQ97TcWtJnRY+j0zfY3pmOyWhmssnDfEqgA= x-ms-traffictypediagnostic: CY1PR0401MB1535: x-ms-office365-filtering-correlation-id: d6395649-7af3-4a8a-09b1-08d4a76cb522 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(2017030254075)(48565401081)(201703131423075)(201703031133081);SRVR:CY1PR0401MB1535; wdcipoutbound: EOP-TRUE x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040450)(601004)(2401047)(8121501046)(5005006)(93006095)(93001095)(3002001)(10201501046)(6055026)(6041248)(20161123558100)(20161123555025)(201703131423075)(201702281528075)(201703061421075)(201703061406153)(20161123560025)(20161123564025)(20161123562025)(6072148);SRVR:CY1PR0401MB1535;BCL:0;PCL:0;RULEID:;SRVR:CY1PR0401MB1535; x-forefront-prvs: 032334F434 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(39410400002)(39400400002)(39850400002)(39840400002)(39450400003)(39860400002)(377424004)(24454002)(7736002)(86362001)(8936002)(305945005)(6916009)(2950100002)(53936002)(229853002)(189998001)(2900100001)(6506006)(6246003)(2351001)(6436002)(38730400002)(6116002)(4326008)(3846002)(102836003)(6486002)(77096006)(36756003)(14454004)(25786009)(33646002)(103116003)(558084003)(110136004)(72206003)(5660300001)(3660700001)(81166006)(50986999)(76176999)(8676002)(54356999)(66066001)(3280700002)(6512007)(122556002)(478600001)(99286003)(2906002)(54906002)(5640700003);DIR:OUT;SFP:1102;SCL:1;SRVR:CY1PR0401MB1535;H:CY1PR0401MB1536.namprd04.prod.outlook.com;FPR:;SPF:None;MLV:sfv;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-ID: <839300DC0F0521438F1C8B74E765745B@namprd04.prod.outlook.com> MIME-Version: 1.0 X-OriginatorOrg: sandisk.com X-MS-Exchange-CrossTenant-originalarrivaltime: 30 May 2017 15:01:10.0952 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b61c8803-16f3-4c35-9b17-6f65f441df86 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR0401MB1535 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id v4UF2I60003663 On Sun, 2017-05-28 at 13:33 +0800, kernel test robot wrote: > [ 207.874416] WARNING: CPU: 0 PID: 419 at block/blk-merge.c:674 attempt_merge+0xd1/0x11a6 I will fix this by adding if (!q->mq_ops) in front of the lockdep_assert_held() statement in attempt_merge(). Bart.