From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2110.outbound.protection.outlook.com [40.107.237.110]) by sourceware.org (Postfix) with ESMTPS id C01F33861916 for ; Fri, 3 Jul 2020 11:09:49 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org C01F33861916 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=MDGAPSpdhyp7EjdI4h83I2CxFjCtUS56EBcPwJu7ltZ4yOzHjad6TWUnrdLuJZ1mfuzTVBOFGg63cPgzVF2HYqdmwhaFSeyWCfaGop+BPPsbudIn0y6J5p9OYRkIGL+TzgnGkCAKOknPSho9n2YKcRjUNAXy8J2SpHcx5h7PhZp0fOQkND4l3VS0fyNBR5/CEvQVy2e3XMOo6NgYHuWToQVpitzyBwRZ7hjM1amVpbJwsxD9G/GWoMiKZSHjw8/o3VYwyxOJ0dG45Spk5lkDB8w4qpAqpiaPq9k2YITEVEhZFOn4PXooHkgBQKYIeakiBPNnEtffVgegz5F4M2rHuQ== 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-SenderADCheck; bh=xCzKZX55nS8U2pxBQu/hbXG09Ijy7KtJu+hgGHCu3vM=; b=OCt2J+M8xmhcBpL48hG7SoJEvi08BrW4Ou6ZgRtgmev1pKWDf1/kBW3kZd83HaJZE+f10IWRTFpeAYdBk7NgGLQAfWWto1xdNyUc0COi7F/94eIzoHxEf1c3lVtEpRiYThp/6TqQ/pXN9TTG/fydnyIT0eAfe0GA2yttNcv4UJElpJhBf6EXxl4pHEgmMx4I9w1R8Ua2HT6k6QYKepEMpdlrqKWsAKsm7jY05P0B4C1RGuXpxLTg7IXyc8o1TigWeuP7K1XuZnsZ6mq5+4dZmbufk4QX2H5Vz9SWPpc/3klk46vr5ePWhkgi0N9kXSfMFd7veXUPZpYRSXr06oRDPA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu; dkim=pass header.d=cornell.edu; arc=none Received: from MN2PR04MB6176.namprd04.prod.outlook.com (2603:10b6:208:e3::13) by MN2PR04MB6175.namprd04.prod.outlook.com (2603:10b6:208:e0::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.22; Fri, 3 Jul 2020 11:09:45 +0000 Received: from MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::184d:a265:1d48:499a]) by MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::184d:a265:1d48:499a%7]) with mapi id 15.20.3153.028; Fri, 3 Jul 2020 11:09:45 +0000 Subject: Re: name pipe problem: 1 writer, multiple concurrent readers To: =?UTF-8?Q?Morten_Kj=c3=a6rulff?= , cygwin@cygwin.com References: From: Ken Brown Message-ID: Date: Fri, 3 Jul 2020 07:09:43 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-ClientProxiedBy: CH2PR16CA0024.namprd16.prod.outlook.com (2603:10b6:610:50::34) To MN2PR04MB6176.namprd04.prod.outlook.com (2603:10b6:208:e3::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [IPv6:2604:6000:b407:7f00:b0c3:f093:3e0:31d2] (2604:6000:b407:7f00:b0c3:f093:3e0:31d2) by CH2PR16CA0024.namprd16.prod.outlook.com (2603:10b6:610:50::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3153.24 via Frontend Transport; Fri, 3 Jul 2020 11:09:44 +0000 X-Originating-IP: [2604:6000:b407:7f00:b0c3:f093:3e0:31d2] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 15f066f4-2df9-403c-8396-08d81f4197a5 X-MS-TrafficTypeDiagnostic: MN2PR04MB6175: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; X-Forefront-PRVS: 045315E1EE X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: lr3rl1UEeH7K5qPt0db5NSF0lgrjNHytWtD6POyOiYXbFN013GxSrXjA1mJFy3zzSJFTlwNLXYbsvCUhanR9N27UT7iAjpDToXe5VLW1cc1IMJGcgexzYB2/0ekz9jWuX9QjBIpbPY6l3JywDTzo8Nw2UIM23X4V0QLt52ELG64aTNEfG5+6D+XPgLXcTgRhJFI/ejXflVjqlJMFm6EzowfvoQDDpSqFSFFw83LUYZJ+Ik0i2UzQxcDEl6a2FVo8Wa4gMslBO8wKONBoTzrX148OOkltotYamKTem+PEMDh402PGuUC5vuRb2+0XNiaAYl30kpnmK3Nz2mc+C2irGnatMwD5xEVRKg1u1WY+84LqJ8Z0gepT2IE3V17Zlg+LGkK9zafDdd9P4al8HQZSK5EEzAL43xc1v4MjYhiT7fQ= X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:MN2PR04MB6176.namprd04.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(376002)(136003)(346002)(39860400002)(396003)(366004)(186003)(8936002)(786003)(316002)(8676002)(478600001)(31696002)(5660300002)(66574015)(2616005)(2906002)(86362001)(83380400001)(31686004)(4744005)(6486002)(16526019)(36756003)(66476007)(66946007)(52116002)(66556008)(53546011)(75432002)(43740500002)(460985005); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: 15f066f4-2df9-403c-8396-08d81f4197a5 X-MS-Exchange-CrossTenant-AuthSource: MN2PR04MB6176.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Jul 2020 11:09:45.2895 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 5d7e4366-1b9b-45cf-8e79-b14b27df46e1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: MXZiefuw2lfTsbuz1zIBssPsRcqkPKkd7dxdDbEFnbvgcUGuIZMn4i7QCVu3QHfSd2+COFrPachTs09LXtIz3g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB6175 X-Spam-Status: No, score=-0.2 required=5.0 tests=BAYES_00, DKIM_INVALID, DKIM_SIGNED, KAM_DMARC_STATUS, MSGID_FROM_MTA_HEADER, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Jul 2020 11:09:51 -0000 On 7/2/2020 1:50 PM, Morten Kjærulff via Cygwin wrote: > I think we got a new release around the beginning of June, right? > You said that there were still issues (I can confirm). > If it can help, here is the output I see today of above scripts: > > $ ./tp.sh [...] > 0 [fifo_reader] diff 1806 C:\cygwin\bin\diff.exe: *** fatal > error - Can't update my handlers, Win32 error 87 Thanks for the report and the simple test case. Obviously I still have more work to do on this. Ken