X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Fri, 20 Feb 2009 19:05:15 +0100 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: Strange freezes when using gdb (rxvt/mintty but not dos box) Message-ID: <20090220180515.GL24834@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <499ED1CE.1050803@onevision.de> <499EDE0C.6080409@gmail.com> <20090220171303.GB16739@ednor.casa.cgf.cx> <20090220172617.GK24834@calimero.vinschen.de> <20090220174504.GA16993@ednor.casa.cgf.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090220174504.GA16993@ednor.casa.cgf.cx> User-Agent: Mutt/1.5.17 (2007-11-01) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 On Feb 20 12:45, Christopher Faylor wrote: > On Fri, Feb 20, 2009 at 06:26:17PM +0100, Corinna Vinschen wrote: > >On Feb 20 12:13, Christopher Faylor wrote: > >> 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. > >> >[...] > >> >>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. > > > >What about the new-console option in Cygwin's GDB to create the inferior > >process in a new Console window? Shouldn't that help here, as long as > >the pty is actually running in the local GUI session. > > I don't think that resets stdin/stdout for the inferior process so I > doubt that it would help. Indeed, that could be a problem. I was just wondering if this win32 app doesn't actually opens the console by itself and uses functions like WriteConsole. That could explain why it hangs. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- 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/