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X-HELO:	calimero.vinschen.de
Date:	Wed, 1 Jun 2016 20:28:55 +0200
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com, Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
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:	<20160601182855.GA18871@calimero.vinschen.de>
Reply-To:	cygwin AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com, Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
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On Jun  1 11:22, Ken Brown wrote:
> On 6/1/2016 10:33 AM, Ken Brown wrote:
> > On 6/1/2016 10:28 AM, Corinna Vinschen wrote:
> > > Hi Ken,
> > >=20
> > > 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,....
> > >=20
> > > Are you sure?  I just tried it myself and ls as well as emacs work
> > > fine for me.
> >=20
> > It works for me now too.  I must have done something wrong the first
> > time I tried.
>=20
> And this also fixes the original problem in emacs that started the thread:
>=20
>   https://www.cygwin.com/ml/cygwin/2016-05/msg00318.html

I reverted commit 252a07b0ad3353abcd0fcd9b1b65ff977acd679e in git master
for now, unless we find a reason to rework this again.


Thanks,
Corinna

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

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