From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM04-BN8-obe.outbound.protection.outlook.com (mail-bn8nam08on2111.outbound.protection.outlook.com [40.107.100.111]) by sourceware.org (Postfix) with ESMTPS id A1C5C385AC31 for ; Thu, 11 Nov 2021 14:16:08 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A1C5C385AC31 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=C5wiDcOxtCdL7NoKm81eMqUjPGVt0uH+GEnJe/c7jVPT027Ih0iWMo9JkgZLK0An6z52eKrOiIHSnnia17h8AR88c8oAg7q+z2b2rOL54BkRGjtPvjljYKQbOEB7znrJowayqpfndRE3uRZYwHp9IPtbSytLX2ky/zagis0KHvUJLpsRtALGBhKVfy5+Wc/++/ooJB3Ypjp3Pu32heDxbmCr2zs8Ob8ZxAfqFHTLBD3nKix1YHI8KCf2St74jfutAP3xS3h+jA/O86xvM0E7N4KeRct7W1cGaV92x5G0bi3tj2NYodmpVX9iXQwsIsfogewIAKd+ctXNncB+gHgWxw== 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=w7RVnbHGW29AClH3wMzhGBbiQ9i/vJORMoTQenyal8A=; b=TLj+4Lp+W/71uUR7/wRgJYG6XAIR+/sqbXNQmBdRAoQOFaZpULmfFXGejuWjDIZZuPJ9zhOGwusaJx+fT+gqoCnRQuxMJGHNAoA+SiYeVm0oPQHo0Pa5t1xT9WHAcgbHLY4VSUevniRROXQ1IaX+cqTyM5RRDKcrMY9Rof4BCuriauCFIuQNl1MckRpmTrPp1/sL/PCPtNLzpqlwRB/1V6bTmO6zIg8F7Sjne/+4UFvVLaXZc9MolKsNofbZtxhwC672Kp6pg5vsvAS5Kd2EBeunByr/DXLNxoWkz4I+or0ly1rbcerdUiMf/rx0S08wqZOZsicPh/LkMAas4DxBsA== 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 BN7PR04MB4388.namprd04.prod.outlook.com (2603:10b6:406:f8::19) by BN8PR04MB5954.namprd04.prod.outlook.com (2603:10b6:408:5d::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4690.17; Thu, 11 Nov 2021 14:16:07 +0000 Received: from BN7PR04MB4388.namprd04.prod.outlook.com ([fe80::88c4:79c5:1eb1:b969]) by BN7PR04MB4388.namprd04.prod.outlook.com ([fe80::88c4:79c5:1eb1:b969%7]) with mapi id 15.20.4669.018; Thu, 11 Nov 2021 14:16:07 +0000 Message-ID: Date: Thu, 11 Nov 2021 09:16:04 -0500 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Subject: Re: Another pipe-related problem? Content-Language: en-US To: "Henry S. Thompson" Cc: cygwin@cygwin.com References: <05c4180e-396b-4af3-ac0c-2ab8125df17e@cornell.edu> <0971ace1-5ee8-bdcc-5fd9-4551b294ebf8@cornell.edu> <75197fd0-d5da-3236-a7df-b8ffc3f67da7@cornell.edu> <4b937b32-e348-19d2-2406-c55fa12e20a3@cornell.edu> <83df50b8-5c0c-41b9-1e9e-4ea6bfa3d69f@cornell.edu> From: Ken Brown In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: CH0PR03CA0065.namprd03.prod.outlook.com (2603:10b6:610:cc::10) To BN7PR04MB4388.namprd04.prod.outlook.com (2603:10b6:406:f8::19) MIME-Version: 1.0 Received: from [IPV6:2603:7081:7e3f:3419:94c9:84b2:5199:a24c] (2603:7081:7e3f:3419:94c9:84b2:5199:a24c) by CH0PR03CA0065.namprd03.prod.outlook.com (2603:10b6:610:cc::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4690.16 via Frontend Transport; Thu, 11 Nov 2021 14:16:07 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b442ab30-cd03-4ec5-02bc-08d9a51dcdc1 X-MS-TrafficTypeDiagnostic: BN8PR04MB5954: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; 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Thompson wrote: > Ken Brown writes: >> The good news is that the bug doesn't seem to occur in XEmacs 21.4 >> (on 32-bit Cygwin). So one way to approach this would be to bisect >> the XEmacs git repo to find the commit that introduced the bug. >> You'd probably have to do the work on 32-bit Cygwin since, if I >> remember correctly, XEmacs 21.4 didn't build on 64-bit Cygwin. > > Right, although I _suspect_ it will be in 64-bit-only code. Easy > enough to find out, once I resurrect a 32-bit install on a spare > machine that I can run 3.3 on (I use XEmacs all day every day from my > day job, so I need to stay with 3.2 until we fix this). I had actually tested the 32-bit case before suggesting the bisection. The bug does occur there too. And, as Andrey said, you don't need to use a spare machine. You can have as many parallel Cygwin installs as you want on a single machine, some 64-bit and some 32-bit. Ken