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X-HELO: calimero.vinschen.de
Date: Wed, 1 Jun 2016 16:28:04 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: gdb pty problem [Was: emacs gud-interface is not updated after gdb command execution (maybe because of incomplete output from gdb)]
Message-ID: <20160601142804.GG11431@calimero.vinschen.de>
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Hi Ken,

On Jun  1 09:02, Ken Brown wrote:
> On 6/1/2016 8:51 AM, Ken Brown wrote:
> > On 5/31/2016 5:41 AM, Corinna Vinschen wrote:
> > > Any chance you could bisect Cygwin to help finding the culprit?
> >=20
> > The culprit is
> >=20
> > commit 252a07b0ad3353abcd0fcd9b1b65ff977acd679e
> > Author: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
> > Date:   Fri Apr 3 13:07:35 2015 +0900
> >=20
> >    Cygwin hangs up if several keys are typed during outputting a lot of
> > texts.
> >=20
> >        * fhandler_tty.cc (fhandler_pty_slave::read): Change calculation=
 of
> >        "readlen" not to use "bytes_in_pipe" value directly.
> >=20
> >=20
> > Reverting that commit fixes the problem.
>=20
> Unfortunately, all kinds of other things break.  For example, emacs exits
> immediately, ls produces no output,....

Are you sure?  I just tried it myself and ls as well as emacs work
fine for me.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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