From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0658AC433F5 for ; Wed, 19 Jan 2022 04:02:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345914AbiASECa (ORCPT ); Tue, 18 Jan 2022 23:02:30 -0500 Received: from mx0a-00069f02.pphosted.com ([205.220.165.32]:44502 "EHLO mx0a-00069f02.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344750AbiASEC1 (ORCPT ); Tue, 18 Jan 2022 23:02:27 -0500 Received: from pps.filterd (m0246627.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 20INx8f6002474; Wed, 19 Jan 2022 04:02:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=to : cc : subject : from : message-id : references : date : in-reply-to : content-type : mime-version; s=corp-2021-07-09; bh=LU6DYS8Vyt2BVqGUAJEdGlTGeby/xlb6OXjSJF5HpXg=; b=tBeRNEKuDJH5SfVTElJAtw7mFo03WzeMBxSbIEu1rCYhv410WFwKl3dtRUWFoyKvyKqg M097G2Aawy7zwFAAByNtNk4wwvSTnfxkWfkoUuDXrikK2/YTEv0L2v6JZmoawMjUlCLX Qd9VVMw+TpU2qvXULwcM1WMEb6oPiA1ZF2mVF3dYpmW2FacR/NFv54xBm1zJRgGBmL5u wMCBMO8eZPBiUG3FkL96NxZbds0oho3cdpdD715DITMHS4slqFtGPeTXkG8/atXJcAxZ t9Y/XlWg0zk6z8cX2eQPSbHCtMHI+xvTnGojz2ShKwgxS39NgEVNGeiDdmcE8v2OFFJh +Q== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by mx0b-00069f02.pphosted.com with ESMTP id 3dnc5f3tam-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 19 Jan 2022 04:02:25 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.1.2/8.16.1.2) with SMTP id 20J40PXA155261; Wed, 19 Jan 2022 04:02:24 GMT Received: from nam11-bn8-obe.outbound.protection.outlook.com (mail-bn8nam11lp2168.outbound.protection.outlook.com [104.47.58.168]) by aserp3020.oracle.com with ESMTP id 3dkp3593ft-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 19 Jan 2022 04:02:24 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UTa5ITcuI858mWWBVfFCRYnwW7Yi+1e/X/XzH1r5ZWybqgxnzibFJG/WXGdNJrYG4iKldzy9TIU4ZGZjvLhkLT80cqZ+LYcEk4T+k7vS6TE/STOxA61XABQa8u/EC/I4LqmTPiONlVT706N7MRirwgaz4Cr6XxR7abxvyk+DNZ7VP5yVeLhgqCB6a+SWlM4ve+JsrWlCA+YKSQAXltpWvk79FZJEK2wafDKSyjFZknerzgK7urO4SpYyNVFgMzAXyzdaidPHUkTMdTRQInHs6SEHVUqUtabMeTdzA2DWJxsC2KAibTCwwkyuscrsNJ3M4c12COrRPC8SKv2tNMARsA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=LU6DYS8Vyt2BVqGUAJEdGlTGeby/xlb6OXjSJF5HpXg=; b=grKyOxUTKOaOr5swF5D7yeJNcnPcMaht9SPPlMmndh63FONl57+wq8wgK0mvJ+0/Ln6tQNrnmRipTC34ClEK3bqblpctd/+6YNskrSzk864ClKTYpAsg5BmLiG4RoT7xVvvV2iim7AL68y8qX0KI9cNFcCX8Ni3kSpdV42ik6y0R58KkWwwuDsLuZn6SEucAmz9GfCVwnNCiZF/wo6b9lps5cC7/LJy7tvCYYGb4tJ9fFI6v6VO/bDTcMPGyHP3OXpAaGcqlsFr0DULX7RQp3RgBHxJVMQSGKWeIqvr81L66J29jH/fqDntYLpx9NbdcSJhxWvwNfJ5mZMSCtg3A5w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.onmicrosoft.com; s=selector2-oracle-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LU6DYS8Vyt2BVqGUAJEdGlTGeby/xlb6OXjSJF5HpXg=; b=MFBUGspeUBFXRvkd4qG4l8xcAeGDjGZyhDFh+Nwt5dqRjUtLLhHNeYHL84j0cccqE1NFTW9P6o7ze5XTPRHrBJl7bLeveiWju+sjHbo2mcXkotSQWCQlu/v/PTkL95cjkhte8VZQA3poqK6spNi6hRdprvIUtKt8zdfgV5nEoCY= Received: from PH0PR10MB4759.namprd10.prod.outlook.com (2603:10b6:510:3d::12) by BN6PR10MB1410.namprd10.prod.outlook.com (2603:10b6:404:46::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4888.10; Wed, 19 Jan 2022 04:02:22 +0000 Received: from PH0PR10MB4759.namprd10.prod.outlook.com ([fe80::1053:7ae3:932b:f166]) by PH0PR10MB4759.namprd10.prod.outlook.com ([fe80::1053:7ae3:932b:f166%7]) with mapi id 15.20.4888.014; Wed, 19 Jan 2022 04:02:22 +0000 To: bugzilla-daemon@bugzilla.kernel.org Cc: linux-scsi@vger.kernel.org Subject: Re: [Bug 215447] sr_mod scsi_mode_sense() failure -> "scsi-1 drive" From: "Martin K. Petersen" Organization: Oracle Corporation Message-ID: References: Date: Tue, 18 Jan 2022 23:02:20 -0500 In-Reply-To: (bugzilla-daemon@bugzilla.kernel.org's message of "Sat, 15 Jan 2022 14:04:33 +0000") Content-Type: text/plain X-ClientProxiedBy: SA0PR11CA0026.namprd11.prod.outlook.com (2603:10b6:806:d3::31) To PH0PR10MB4759.namprd10.prod.outlook.com (2603:10b6:510:3d::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ef574c44-54a9-41fa-69eb-08d9db007e91 X-MS-TrafficTypeDiagnostic: BN6PR10MB1410:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PH0PR10MB4759.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(366004)(38350700002)(508600001)(36916002)(316002)(2906002)(4744005)(4326008)(6512007)(66946007)(8936002)(52116002)(66476007)(66556008)(6506007)(6916009)(5660300002)(86362001)(38100700002)(186003)(6486002)(8676002)(83380400001)(26005);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?3m62SxPDg3cf9lQ7IL35x4atO8Ii36MmN0IT23GF9EqUXRRGDf14fSnmIy/J?= =?us-ascii?Q?NOFnNGiwC7jAA+WZtlzSQGwhY6I5cZm+cfn6ngAOh0kIw7SKgPN/+tbQePuM?= =?us-ascii?Q?6isTyeKWrJMasoZ0g02TcoqyoW0anxdILwjkiodz9hVdPh8DbmswsIA/f4Y9?= =?us-ascii?Q?v0XaVIYwyweU57bK60JM/mKwBdkXmnnDb9z3TILPHlybCy+OkqMDGbWbwcTB?= =?us-ascii?Q?CvIpPApw3LU/fu0MfOSfzx4JNJt3RA8ytHyOsCGwhCM2JpUJFV+gZXkm3ZyB?= =?us-ascii?Q?+4tCGc8kVtvLWrX2fyJvNKPzqaes3uK8SQC/0+Q15Bd7FJIqiQldT8pvSsSg?= =?us-ascii?Q?wyiNILnsHnmD2z5V7oRvPFFBrOTNCy//KEsRwyQh8iwafj/P9jEr+ni8EndG?= =?us-ascii?Q?0SVf1sIvPZDvF6kgbCGRJLq1ymH/ckN6ojnDdaw4knrnVFIV6NxVw3P5PeAw?= =?us-ascii?Q?WbMJsQfTgtPRcxn0l6SOk4luQniVHLpOuK3iftVgjYNaduLA/5fOGNGK15vm?= =?us-ascii?Q?DxM477oPbLQruuoc93ChqPOSM+AUfQnLrb38j9V3fNoe7egsZhNa7jxk80rQ?= =?us-ascii?Q?34NX9R9rSoJXjFJGmyGvKgCzqjhfppN5g0aNxLdziWTEO5TgUzV6dJSSKdJf?= =?us-ascii?Q?1WC6VW7MpYGLsbLeQKQmHDMP2yzBtigq3SUMhkXe3NmOdEbh3xo4LUJUztCx?= =?us-ascii?Q?ofKu5WSRlycuYViJfawKpDlbJFfa+s7Oj3cmn95c+fTNrZEw2yYPkYbWOTAg?= =?us-ascii?Q?/tlDJU6TcKjBvTOBT/hw5u2g3U1KFlvZMic5F/vXxlpkKIh0w3Ix35SR+KHZ?= =?us-ascii?Q?vFEk7r1llIVTBzfleC45Aq2ebtI6vCKOKX/RwGJ8bqiYcrHLsdIvH5pDbowc?= =?us-ascii?Q?r8bJVtkxtrJC+n9BrY+ClDXyDhduwxi6549n5KWSYiNUsbQRV4V9yzlXd0jI?= =?us-ascii?Q?fRF+T6oViYuNvblJCV4nlxqbKKmdLq9DXA6VsUHlGuEBflipFF2ubyEsbfKa?= =?us-ascii?Q?p2ZBZgJ3jPto7jh3V12TmHM3o3wFMHk6DG3r7aWEY9HxmwMWr1Dcdeypc+fj?= =?us-ascii?Q?eRJyHv8XDSIVyhJVQrUd9hML9zKGz+Z/9Mnf6eHoOldSEQ2PHoEX3aykJvGw?= =?us-ascii?Q?XbDb5V6bzgyYGeEJ9e/KByjPXFweNmPoc0JZGEanrNAWcOUYg+GZJjog9DjH?= =?us-ascii?Q?58KjyVkMDJQH8uYxJiy6kARFaQQ9gBdrWu9lam99YomkrTjYuZd/DofnY7sE?= =?us-ascii?Q?sO6wgWqk94k0N+xowTXYBAyc1Tapa2SCx1wvr3+0uo370ZIV9r3464iOlMGi?= =?us-ascii?Q?62bSrasgSMUGOpArW7YwdgZKPNet7iIoXmX1ZA4nskGCQp/Y5TrAXDv2kB56?= =?us-ascii?Q?+cqRY4m10RIhtnh5lxLm3Y3RLspKrnZdwla2/6BRIK4DWsFnFqhLnLc4cQnL?= =?us-ascii?Q?XY093HtLKI9JAidToowQyyHiznDkvb+DnqZjMRyxvi5y6NFIPCgW4uNcNU/v?= =?us-ascii?Q?V6jdxMCGUF5FRi8FzSK/blDbwd+ezAwmJLC9CA5O+du2Rw+INvI4dlEPrWuJ?= =?us-ascii?Q?RCCHLp5pVnDdNdFhVlhNpunjR+eGUaqrMjgtqIOEnNJsxNi3GcYAYEbfCj9y?= =?us-ascii?Q?i1CNhIIEejifk80M0eGO7J8wonoYun7x4w55sz2lTWPfkADfbzGVIlRiglLO?= =?us-ascii?Q?pMKe7Q=3D=3D?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: ef574c44-54a9-41fa-69eb-08d9db007e91 X-MS-Exchange-CrossTenant-AuthSource: PH0PR10MB4759.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jan 2022 04:02:22.0514 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: IhEmqE+A8y83NVMcq0V/wi5gwecCjlsNrnHwuyWvYvXSrVPLbPjb45cQYlGs+b1DgEXrzg98cOgL5cZSQAghjnBqxtsK6mStl+WRjA8nCzU= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR10MB1410 X-Proofpoint-Virus-Version: vendor=nai engine=6300 definitions=10231 signatures=668683 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 bulkscore=0 mlxlogscore=999 adultscore=0 suspectscore=0 malwarescore=0 mlxscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2201190019 X-Proofpoint-GUID: hax7LTjmWquNh1grYiXjZzuDuRp-RilR X-Proofpoint-ORIG-GUID: hax7LTjmWquNh1grYiXjZzuDuRp-RilR Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org > is it risky to implement the fallback mechanism in both directions? is > there a chance of forever retry? (fail 6, fail 10, fail 6, fail 10...) Just a heads-up that I am still working on a reasonable way to go about this. It is not entirely trivial to perform the transition from MODE SENSE(6) to (10) given how the SCSI disk driver works. -- Martin K. Petersen Oracle Linux Engineering