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To: Forza , target-devel@vger.kernel.org References: From: michael.christie@oracle.com Message-ID: Date: Thu, 25 Feb 2021 21:41:00 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [73.88.28.6] X-ClientProxiedBy: CH2PR11CA0011.namprd11.prod.outlook.com (2603:10b6:610:54::21) To DM6PR10MB3577.namprd10.prod.outlook.com (2603:10b6:5:152::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [20.15.0.5] (73.88.28.6) by CH2PR11CA0011.namprd11.prod.outlook.com (2603:10b6:610:54::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3890.19 via Frontend Transport; Fri, 26 Feb 2021 03:41:01 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a3780c2a-4488-4c9f-841e-08d8da085640 X-MS-TrafficTypeDiagnostic: DM5PR10MB1516: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2733; 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It can happen even if I shut down the Windows machine before I reboot the Linux server. > > Initially I thought I would be write cache. But I've disabled that with no benefit to this problem. > How are you disabling the write cache? What tools do you use? Is it targetcli or are you doing this manually via configfs? What is the output of cat /sys/kernel/config/target/core/fileio_$N/$name/info cat /sys/kernel/config/target/core/fileio_$N/$name/attrib/write_cache ? If you do a sync manually after shutting down windows does it help? Are you accessing this from multiple windows machines at the same time? What target driver are you using?