Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Date: Thu, 9 Jun 2005 18:35:33 -0400 From: Christopher Faylor To: cygwin@cygwin.com Subject: Re: Multi Threaded programs deadlock doing simple I/O operations Message-ID: <20050609223533.GA9899@trixie.casa.cgf.cx> Reply-To: cygwin@cygwin.com References: <00af01c56c8c$54974c30$1f3ca8c0@AlohaSunset.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00af01c56c8c$54974c30$1f3ca8c0@AlohaSunset.com> User-Agent: Mutt/1.5.8i On Wed, Jun 08, 2005 at 05:43:59PM -0700, Mark Pizzolato wrote: >There is a serious problem for multi threaded programs doing simple I/O >operations in cygwin (open, dup, fdopen, fclose, and close). > >The attached 81 line test program clearly demonstrates the issue (by >hanging and no longer consuming CPU or performing any I/O operations). Thanks for the relatively small test case. That was enough to track the problem down. I'm generating a new snapshot with a fix for this problem. cgf -- 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/