From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754074AbdBNOqw (ORCPT ); Tue, 14 Feb 2017 09:46:52 -0500 Received: from mail-sn1nam01on0134.outbound.protection.outlook.com ([104.47.32.134]:6115 "EHLO NAM01-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751297AbdBNOqp (ORCPT ); Tue, 14 Feb 2017 09:46:45 -0500 From: Dexuan Cui To: "hch@lst.de" CC: Jens Axboe , Bart Van Assche , "hare@suse.com" , "hare@suse.de" , "Martin K. Petersen" , "linux-kernel@vger.kernel.org" , "linux-block@vger.kernel.org" , "jth@kernel.org" , Nick Meier , "Alex Ng (LIS)" , Long Li , "Adrian Suhov (Cloudbase Solutions SRL)" , "Chris Valean (Cloudbase Solutions SRL)" Subject: RE: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements") Thread-Topic: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock when scheduling workqueue elements") Thread-Index: AQHShsjrogMPMZpyNUy6fxqrCrP3uaFoi5NwgAAEHYCAAAQcIA== Date: Tue, 14 Feb 2017 14:46:41 +0000 Message-ID: References: <9199d528-f220-5b77-d657-c510ca210067@kernel.dk> <20170208180314.GA17838@lst.de> <20170209130800.GA12057@lst.de> <20170214134736.GA19620@lst.de> <20170214142837.GB20706@lst.de> In-Reply-To: <20170214142837.GB20706@lst.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=decui@microsoft.com; x-originating-ip: [112.65.1.229] x-ms-office365-filtering-correlation-id: 23c9777c-dc63-4fb2-f723-08d454e84a17 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(48565401081);SRVR:MWHPR03MB2463; x-microsoft-exchange-diagnostics: 1;MWHPR03MB2463;7: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 x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(131327999870524); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(61425038)(6040375)(601004)(2401047)(8121501046)(5005006)(10201501046)(3002001)(6055026)(61426038)(61427038)(6041248)(20161123560025)(20161123555025)(20161123558025)(20161123562025)(20161123564025)(6072148);SRVR:MWHPR03MB2463;BCL:0;PCL:0;RULEID:;SRVR:MWHPR03MB2463; x-forefront-prvs: 0218A015FA x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(6009001)(7916002)(39840400002)(39450400003)(39860400002)(39410400002)(39850400002)(199003)(189002)(107886003)(10090500001)(110136004)(81166006)(54356999)(76176999)(74316002)(50986999)(25786008)(7736002)(93886004)(101416001)(229853002)(38730400002)(305945005)(81003)(5005710100001)(86612001)(86362001)(2950100002)(33656002)(6116002)(102836003)(3846002)(2351001)(97736004)(3660700001)(3280700002)(106116001)(106356001)(105586002)(5660300001)(81156014)(6246003)(92566002)(99286003)(2906002)(4326007)(122556002)(189998001)(8936002)(10290500002)(8990500004)(1730700003)(68736007)(6436002)(5640700003)(54906002)(77096006)(6506006)(9686003)(2900100001)(53936002)(7696004)(2501003)(6916009)(8656002)(55016002)(66066001);DIR:OUT;SFP:1102;SCL:1;SRVR:MWHPR03MB2463;H:MWHPR03MB2669.namprd03.prod.outlook.com;FPR:;SPF:None;PTR:InfoNoRecords;A:1;MX:1;LANG:en; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-originalarrivaltime: 14 Feb 2017 14:46:41.5770 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2463 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 v1EEkwXi022955 > From: hch@lst.de [mailto:hch@lst.de] > Sent: Tuesday, February 14, 2017 22:29 > To: Dexuan Cui > Subject: Re: Boot regression (was "Re: [PATCH] genhd: Do not hold event lock > when scheduling workqueue elements") > > Ok, thanks for testing. Can you try the patch below? It fixes a > clear problem which was partially papered over before the commit > you bisected to, although it can't explain why blk-mq still works. Still bad luck. :-( BTW, I'm using the first "bad" commit (scsi: allocate scsi_cmnd structures as part of struct request) + the 2 patches you provided today. I suppose I don't need to test the 2 patches on the latest linux-next repo. Thanks, -- Dexuan