X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:subject:to:references:cc:from:message-id:date
	:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=TPqz2/oVBr1U4y9o
	RV3mSElEJlKaAzRCwx7K2XNY4UFXspkGQbFNVQd7w6Xxwa8Z4xAOlcmTahU5/I+Q
	u37wRfemipsCaFmnqyg/wJe5OQbRgUaWD3esP+5AeRGeGVH2ZFF4w3PjBWWEBSQx
	LVG6o/j9QEjiIp4XmRuSZVjpSqI=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:subject:to:references:cc:from:message-id:date
	:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=K9HRx6tqB6J1U+YXNYYoWp
	QEQFk=; b=C7f0SYk5Lytyu6Aefv7gsXc3WlCK+sASa0egFu3oeORR90yTYkPzdj
	VG9/l9nhlNavBVzORqrsYlJdCqOlMDi2yKWgHiT2NWeAF1p6wWEQY/ywZnRgZxTq
	7YmmVQlMAJm+OH+c68DeX/nbz6e2jMVewE7uUksqKmdZMpnupw8T8=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-2.8 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 spammy=virtually, castro, Castro, Hx-languages-length:1900
X-HELO: limerock03.mail.cornell.edu
X-CornellRouted: This message has been Routed already.
Subject: Re: gdb pty problem [Was: emacs gud-interface is not updated after gdb command execution (maybe because of incomplete output from gdb)]
To: cygwin AT cygwin DOT com
References: <466943424 DOT 37628 DOT 394d161a-7219-415d-a659-0f774811ad2d DOT open-xchange AT email DOT 1und1 DOT de> <44459aa0-4381-2368-ab63-5dffc26f3344 AT cornell DOT edu> <e29d08b0-aaed-46ea-a4eb-960b1e462692 AT cornell DOT edu> <a50d8bef-cc9b-3b35-8812-b26360591662 AT cornell DOT edu> <20160531094115 DOT GE24015 AT calimero DOT vinschen DOT de> <34c9cf10-4930-a017-92fc-fd56171671b1 AT cornell DOT edu> <9403d1d8-21d1-bf7e-dddc-d77b42e4795d AT cornell DOT edu> <20160601142804 DOT GG11431 AT calimero DOT vinschen DOT de> <aad3bfc2-c6a5-3299-2e66-90892286753b AT cornell DOT edu> <91397a76-1265-1cda-45e2-573e63b48fa3 AT cornell DOT edu> <20160601182855 DOT GA18871 AT calimero DOT vinschen DOT de>
Cc: Peter Castro <doctor AT fruitbat DOT org>
From: Ken Brown <kbrown AT cornell DOT edu>
Message-ID: <ed68c616-120c-6149-9882-8849a8ccd4e4@cornell.edu>
Date: Wed, 1 Jun 2016 15:05:00 -0400
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0
MIME-Version: 1.0
In-Reply-To: <20160601182855.GA18871@calimero.vinschen.de>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-PMX-Cornell-Gauge: Gauge=XXXXX
X-IsSubscribed: yes

On 6/1/2016 2:28 PM, Corinna Vinschen wrote:
> 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,
>>>>
>>>> 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?
>>>>>>
>>>>>> The culprit is
>>>>>>
>>>>>> commit 252a07b0ad3353abcd0fcd9b1b65ff977acd679e
>>>>>> Author: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
>>>>>> Date:   Fri Apr 3 13:07:35 2015 +0900
>>>>>>
>>>>>>    Cygwin hangs up if several keys are typed during outputting a lot of
>>>>>> texts.
>>>>>>
>>>>>>        * fhandler_tty.cc (fhandler_pty_slave::read): Change
>>>>>> calculation of
>>>>>>        "readlen" not to use "bytes_in_pipe" value directly.
>>>>>>
>>>>>>
>>>>>> Reverting that commit fixes the problem.
>>>>>
>>>>> 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.
>>>
>>> It works for me now too.  I must have done something wrong the first
>>> time I tried.
>>
>> And this also fixes the original problem in emacs that started the thread:
>>
>>   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.  By the way, I'd like to take the opportunity to thank Peter 
Castro for the Cygwin Time Machine 
(http://www.fruitbat.org/Cygwin/#cygwintimemachine).  The bisection I 
did, spanning a period of about 4 years, would have been virtually 
impossible without it.

Ken


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple