From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2095.outbound.protection.outlook.com [40.107.223.95]) by sourceware.org (Postfix) with ESMTPS id B93C83858C39 for ; Mon, 8 Nov 2021 18:53:01 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B93C83858C39 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=IUjWDVVgTWc7ayevCnCiysMEqr4W7g+u98/RmS1L62Z1Ow7q2Ln2qVFDlxg049jMp4C/sogZ51auBFO+GuQqwYpKckhdiGMEI4oDqEJbbgjf4CxCq27OyDelvqfGQlJY63q0nfquK1YiUJxIkCHUWxqI65C3+7URLYCLvGU6vmZxHBGlP+uoWP1rmaVAJSFQnwUrkb5/tG+id0B6XyeHQH0ayLGGNc+aQc8bIK8KaHg/SYoXUhZf1qmtHDVOkqfmAwYyQUanutzgLuZI00AgFWuOkAQrhkKA8kdAXtVi90KK60A5eJr3DQbwC+b6MNFZCpNaS/XfR8CUUsM/iMHAXQ== 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=D7H7Aklf7qVFJ+di/tNTC8bUDKzBLLZ5y3bzJK4PiEo=; b=EI4CDYXc7s1P1nbFJEgVmIyLywVPFrxAo4okVZhk4jTcCMbARog9c4ufaNGuFiBXrEXkta3jQuLqT9lTsW1FSAV1kR8cy05Hq+TZmRqJGpPVQUZg+dVNQcwTBI2rpdPcSy7DoCceznBTkBVkCuy9WrKJxZUfE4nWXxzghhs9SKSQ3Co19L4vWsdL4hJWa4evxFltty8NTo+cif4tfDITseiutrQQR1DId0y6I6hC38184MHYfuI7eX3xFwKijC6yx3jQdClD8vuMzxzmdzFqRxck7olZy34b/L9GTuM6Ly2iJ++6TtgT31KldZDI34RImx1v/WX3Lph4jkSuV1piqQ== 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 BN6PR04MB0244.namprd04.prod.outlook.com (2603:10b6:404:1d::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4669.13; Mon, 8 Nov 2021 18:53:00 +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 15.20.4669.016; Mon, 8 Nov 2021 18:53:00 +0000 Message-ID: <258eb4f9-101d-e953-816d-ca258ee88989@cornell.edu> Date: Mon, 8 Nov 2021 13:52:58 -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: cygwin@cygwin.com References: <05c4180e-396b-4af3-ac0c-2ab8125df17e@cornell.edu> From: Ken Brown In-Reply-To: <05c4180e-396b-4af3-ac0c-2ab8125df17e@cornell.edu> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: MN2PR12CA0002.namprd12.prod.outlook.com (2603:10b6:208:a8::15) To BN7PR04MB4388.namprd04.prod.outlook.com (2603:10b6:406:f8::19) MIME-Version: 1.0 Received: from [IPV6:2603:7081:7e3f:3419:7428:1d03:8434:f8fd] (2603:7081:7e3f:3419:7428:1d03:8434:f8fd) by MN2PR12CA0002.namprd12.prod.outlook.com (2603:10b6:208:a8::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4669.10 via Frontend Transport; Mon, 8 Nov 2021 18:52:59 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 0f891715-638f-420a-2ba5-08d9a2e8fc5e X-MS-TrafficTypeDiagnostic: BN6PR04MB0244: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3968; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Thompson via Cygwin wrote: >> Running on Windows-10 21H1 >> >> With Cygwin 3.3.0 and 3.3.1 I get a hang every time I try to launch XEmacs: >> >> #0  0x00007ffdf31cd474 in ntdll!ZwQueryTimer () >>     from /c/Windows/SYSTEM32/ntdll.dll >> #1  0x00000001800479fa in cygwait (object=, timeout=0xffff09a0, >>      timeout@entry=0x0, mask=mask@entry=5) >>      at >> /usr/x86_64-pc-cygwin/sys-root/usr/include/w32api/psdk_inc/intrin-impl.h:838 >> #2  0x000000018008f716 in cygwait (mask=, >>      howlong=, h=) >>      at /usr/src/debug/cygwin-3.3.1-1/winsup/cygwin/cygwait.h:45 >> #3  cygwait (howlong=, h=) >>      at /usr/src/debug/cygwin-3.3.1-1/winsup/cygwin/cygwait.h:51 >> #4  fhandler_pipe::raw_read (this=0x18034fe80, ptr=0xffff0bc0, >>      len=@0xffff0b40: 128) >>      at /usr/src/debug/cygwin-3.3.1-1/winsup/cygwin/fhandler_pipe.cc:296 >> #5  0x0000000180069244 in fhandler_base::read (this=0x18034fe80, >>      in_ptr=0xffff0bc0, len=@0xffff0b40: 128) >>      at /usr/src/debug/cygwin-3.3.1-1/winsup/cygwin/fhandler.cc:819 >> #6  0x000000018013ffcc in read (fd=3, ptr=0xffff0bc0, len=) >>      at /usr/src/debug/cygwin-3.3.1-1/winsup/cygwin/dtable.h:64 >> #7  0x000000018018e88b in _sigfe () at sigfe.s:35 >> #8  0x000000010066a11d in retry_read_1 (fildes=3, buf=0xffff0bc0, nbyte=128, >>      allow_quit=0) at sysdep.c:2425 >> #9  0x000000010066a171 in retry_read (fildes=3, buf=0xffff0bc0, nbyte=128) >>      at sysdep.c:2437 >> #10 0x0000000100494d86 in drain_signal_event_pipe () at event-unixoid.c:159 >> #11 0x000000010056d1dc in mswindows_need_event (badly_p=1) at event-msw.c:1432 >> >> This is an old executable, has worked since 2015 (!), but recompiling >> didn't help.  Reverting to 3.2 lets it run again. > > This backtrace doesn't match the source of Cygwin's XEmacs package (which exists > on 32-bit Cygwin only), so I assume you built this yourself, using a different > version of XEmacs.  Cygwin's XEmacs doesn't hang for me. > > Please provide build instructions for the version you compiled.  Your backtrace > shows that fhandler_pipe::raw_read is blocked waiting for a mutex Alternatively, XEmacs might be in an infinite loop starting at frame 8 or 9, repeatedly trying to read and failing because it can't get the mutex. Either way, we need the sources in order to go further. Ken