From owner-freebsd-threads@FreeBSD.ORG Tue Jun 3 11:20:36 2003 Return-Path: Delivered-To: freebsd-threads@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id ED25837B404 for ; Tue, 3 Jun 2003 11:20:36 -0700 (PDT) Received: from mail.tcoip.com.br (erato.tco.net.br [200.220.254.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 503A143F3F for ; Tue, 3 Jun 2003 11:20:35 -0700 (PDT) (envelope-from dcs@tcoip.com.br) Received: from tcoip.com.br ([10.0.2.6]) by mail.tcoip.com.br (8.11.6/8.11.6) with ESMTP id h53IJql08534; Tue, 3 Jun 2003 15:19:52 -0300 Message-ID: <3EDCE6C7.4050209@tcoip.com.br> Date: Tue, 03 Jun 2003 15:19:51 -0300 From: "Daniel C. Sobral" User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.4a) Gecko/20030416 X-Accept-Language: en-us, en, pt-br, ja MIME-Version: 1.0 To: Julian Elischer References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: threads@freebsd.org Subject: Re: libc_r, libthr & konsole news X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 03 Jun 2003 18:20:37 -0000 Julian Elischer wrote: > > On Tue, 3 Jun 2003, Daniel C. Sobral wrote: > > >>Alas, I found *what* is going on differently depending on the library used. >> >>With libc_r, dup2() gets called and fails, preventing execution of >>konsole_grantpty, with libthr things work, konsole_grantpty gets called >>and... ttyname fails. :-) >> >>Now, dup2() implementation seems to differ between libc_r and libthr >>(though I'm open to be shown that is not so -- I don't quite understand >>how things work here). >> >>I have verified that by preventing execution of >>/usr/local/bin/konsole_grantpty (by the simple artifice of renaming it), >>the problem DOES NOT HAPPEN. >> >>Now... to find out what's different between both dup2() implementations... > > > does it work with kse? /me sighs Ok, ok, I'll test it. And I tested it. Now, libkse had problems freezing konsole at one time. I don't know about now, but that's another matter anyway. Both libkse and libthr behave identically with regards to the problem I described. In both dup2() works, resulting in later failure of ttyname(), and in both just renaming /usr/local/bin/konsole_grantpty results in ttyname() working again. -- Daniel C. Sobral (8-DCS) Gerencia de Operacoes Divisao de Comunicacao de Dados Coordenacao de Seguranca VIVO Centro Oeste Norte Fones: 55-61-313-7654/Cel: 55-61-9618-0904 E-mail: Daniel.Capo@tco.net.br Daniel.Sobral@tcoip.com.br dcs@tcoip.com.br Outros: dcs@newsguy.com dcs@freebsd.org capo@notorious.bsdconspiracy.net Class schedules are designed so that every student will waste the maximum time between classes.