X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org Date: Fri, 20 Feb 2009 12:13:03 -0500 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: Strange freezes when using gdb (rxvt/mintty but not dos box) Message-ID: <20090220171303.GB16739@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <499ED1CE DOT 1050803 AT onevision DOT de> <499EDE0C DOT 6080409 AT gmail DOT com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <499EDE0C.6080409@gmail.com> User-Agent: Mutt/1.5.16 (2007-06-09) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On Fri, Feb 20, 2009 at 04:45:00PM +0000, Dave Korn wrote: >Roland Schwingel wrote: >>gdb freezes upon execution of the inferior process when used from >>within mintty/rxvt, but does not freeze when gdb is invoked from a >>(conventional) bash inside of a windows DOS box. > >>The application I want to debug is compiled for mingw. > >You're trying to use a Cygwin GDB to cross-debug a MinGW (== plain old >win32) application. Dunno if that's completely guaranteed to work, but >it probably should for simple programs. Yes, it should work fine. >>So I assume some threading issues here in communication with the >>console/terminal from multiple threads... > >Assumption probably wrong. > >>But why does it work with DOS box and not using mintty/rxvt??? > >Clue here. You are launching a win32 app, from a cygwin app, in a >(non-console-based) GUI window. Won't work. Use a console. See >discussions around CYGWIN=tty for full details (which, if you had it >set, ought to make the crash occur in a console as well as in >rxvt/mintty, but isn't anything you can turn off for rxvt and get it >working). Right on, Dave. There are all sorts of potential problems with using a cygwin pty/tty and a mingw process. So: what he said. 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/