From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2713 invoked by alias); 14 Dec 2007 21:56:37 -0000 Received: (qmail 2705 invoked by uid 22791); 14 Dec 2007 21:56:37 -0000 X-Spam-Check-By: sourceware.org Received: from a.mail.sonic.net (HELO a.mail.sonic.net) (64.142.16.245) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 14 Dec 2007 21:56:31 +0000 Received: from [192.168.1.103] (74-95-195-237-SFBA.hfc.comcastbusiness.net [74.95.195.237] (may be forged)) (authenticated bits=0) by a.mail.sonic.net (8.13.8.Beta0-Sonic/8.13.7) with ESMTP id lBELuPwe002377 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 14 Dec 2007 13:56:27 -0800 Message-ID: <4762FCCD.6030804@4raccoons.com> Date: Fri, 14 Dec 2007 21:56:00 -0000 From: Wayne Christopher User-Agent: Thunderbird 1.5.0.4 (X11/20060516) MIME-Version: 1.0 To: cygwin@cygwin.com Subject: mmap failing References: <47616D31.7090002@4raccoons.com> <20071213175934.GB25863@calimero.vinschen.de> <476185AF.5000906@4raccoons.com> <20071214111508.GD25863@calimero.vinschen.de> <20071214134147.GG25863@calimero.vinschen.de> <20071214135239.GJ25863@calimero.vinschen.de> <20071214172454.GL25863@calimero.vinschen.de> In-Reply-To: <20071214172454.GL25863@calimero.vinschen.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com X-SW-Source: 2007-12/txt/msg00361.txt.bz2 I have a 268MB file open for writing. I close it and then immediately try to mmap() it, and a get ENOMEM. However I do have the VM space available and can malloc() the size of the file right after the failure. Also, I have mmap()'ed other similar files in the same program before this, but these had not just been closed. My initial guess was that it was timing related, but if I wait for 5 seconds and try again I still get the failure. I wasn't able to duplicate it in a small example since my app has a bunch of threads and is doing other stuff at the same time. Any suggestions for solutions or workarounds? Maybe strategic use of fsync() ? Thanks, Wayne -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/