From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 93677 invoked by alias); 1 Jun 2016 19:05:12 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 93122 invoked by uid 89); 1 Jun 2016 19:05:12 -0000 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 Received: from limerock03.mail.cornell.edu (HELO limerock03.mail.cornell.edu) (128.84.13.243) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 01 Jun 2016 19:05:01 +0000 X-CornellRouted: This message has been Routed already. Received: from authusersmtp.mail.cornell.edu (granite3.serverfarm.cornell.edu [10.16.197.8]) by limerock03.mail.cornell.edu (8.14.4/8.14.4_cu) with ESMTP id u51J4x51023106; Wed, 1 Jun 2016 15:04:59 -0400 Received: from [192.168.1.5] (mta-68-175-148-36.twcny.rr.com [68.175.148.36] (may be forged)) (authenticated bits=0) by authusersmtp.mail.cornell.edu (8.14.4/8.12.10) with ESMTP id u51J4wGL004688 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Wed, 1 Jun 2016 15:04:58 -0400 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@cygwin.com References: <466943424.37628.394d161a-7219-415d-a659-0f774811ad2d.open-xchange@email.1und1.de> <44459aa0-4381-2368-ab63-5dffc26f3344@cornell.edu> <20160531094115.GE24015@calimero.vinschen.de> <34c9cf10-4930-a017-92fc-fd56171671b1@cornell.edu> <9403d1d8-21d1-bf7e-dddc-d77b42e4795d@cornell.edu> <20160601142804.GG11431@calimero.vinschen.de> <91397a76-1265-1cda-45e2-573e63b48fa3@cornell.edu> <20160601182855.GA18871@calimero.vinschen.de> Cc: Peter Castro From: Ken Brown Message-ID: Date: Wed, 01 Jun 2016 19:05:00 -0000 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 X-SW-Source: 2016-06/txt/msg00013.txt.bz2 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 >>>>>> 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