From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2132.outbound.protection.outlook.com [40.107.237.132]) by sourceware.org (Postfix) with ESMTPS id 923E3386EC30 for ; Sun, 30 Aug 2020 02:56:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 923E3386EC30 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=PNVduQKSTfq1cM+cYVG4RkaMkQkxkMGEU1eogkQ5mLGSuoskzk0PGuYTbqGoIgb4Z7IWOVbZ8rUfcal6dSN0YMH6w1i+NnXRltRBX2c5gKYHFsR+n/bB2uoGSzIkQPta0BMBZ/TY2XMA0mXhngLAD+EvvHG0rwlbByRlEPPQqP8rhLr3y4HUi4IesAbRl1+pQ6SZko43Bzrbz0L87KuBJRbdLKFkQqjUx6FIGllM4WP936elNUekPRZIiVnScupZe8bk/hCnELBX+Cd/EpBKMeiiYLBV5iwl5xFPiak7Hk4DyOxhutWiJCUrOGlrfYZHchtK9X3tT83aEP0NW/iPJA== 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=XxTyjcsYMkAPXeLrsKa9CqLC6ZHDRqUNLssR2YzENzE=; 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modfl segfaults To: cygwin@cygwin.com References: <02b16d2e-9d51-de58-807b-3b31b2565b59.ref@aol.com> <02b16d2e-9d51-de58-807b-3b31b2565b59@aol.com> <9f819e67-5476-ea48-a13f-f7a4b25d6e69@cornell.edu> <12c7b933-d06e-3b92-9c50-a1c3ad353a48@aol.com> From: Ken Brown Message-ID: <4c895636-eebc-426d-33f2-2f587a181a2d@cornell.edu> Date: Sat, 29 Aug 2020 22:56:39 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 In-Reply-To: <12c7b933-d06e-3b92-9c50-a1c3ad353a48@aol.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-ClientProxiedBy: BL0PR05CA0025.namprd05.prod.outlook.com (2603:10b6:208:91::35) To BN8PR04MB6163.namprd04.prod.outlook.com (2603:10b6:408:5c::27) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from 255.255.255.255 (255.255.255.255) by BL0PR05CA0025.namprd05.prod.outlook.com (2603:10b6:208:91::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3348.5 via Frontend Transport; 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SFS:(4636009)(39860400002)(376002)(136003)(346002)(396003)(366004)(6486002)(956004)(2616005)(478600001)(75432002)(4744005)(86362001)(8936002)(26005)(8676002)(52116002)(53546011)(186003)(16576012)(6916009)(66946007)(66476007)(66556008)(786003)(316002)(31686004)(5660300002)(2906002)(31696002)(36756003)(2004002)(43740500002)(460985005)(2480315003); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: 9dedd316-d082-46af-4eee-08d84c905224 X-MS-Exchange-CrossTenant-AuthSource: BN8PR04MB6163.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Aug 2020 02:56:41.2446 (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: aybWry66TkytP4QErquaQXbceXa7p87B8tTnCemfvRaw6vR9UDHL5jIlLkheVgUm8bpMAZPm3eiCLAzvnLKzJQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR04MB2324 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, NICE_REPLY_A, RCVD_ILLEGAL_IP, 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: Sun, 30 Aug 2020 02:56:46 -0000 On 8/29/2020 9:21 PM, airplanemath via Cygwin wrote: > Stepping back through Cygwin releases, I find: > > $ gcc -Og -ggdb -g3 -Wall -Wextra -std=c99 -pedantic test.c -o test.exe > > $ ./test.exe 123.456 > 123.456000 0.456000 123.000000 > > $ uname -a | sed "s/${HOSTNAME}/\${HOSTNAME}/g" > CYGWIN_NT-10.0 ${HOSTNAME} 3.1.4(0.340/5/3) 2020-02-19 08:49 x86_64 Cygwin > > $ gcc --version > gcc (GCC) 9.3.0 > Copyright (C) 2019 Free Software Foundation, Inc. > This is free software; see the source for copying conditions.� There is NO > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > > > 3.1.5 crashed the same way as 3.1.7.� There's nothing obvious in the > 3.1.5 announcement [1], > so I'm stuck again. OK, so the problem was introduced between 3.1.4 and 3.1.5. It should be pretty easy to bisect and find the culprit. I'll do that tomorrow if no one beats me to it. Ken