From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Andreas Schwab Newsgroups: gmane.emacs.devel,gmane.emacs.pretest.bugs Subject: Re: 23.0.50; source of warning in *shell* buffer Date: Fri, 19 Oct 2007 14:46:33 +0200 Message-ID: References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1192798017 9621 80.91.229.12 (19 Oct 2007 12:46:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 19 Oct 2007 12:46:57 +0000 (UTC) Cc: emacs-pretest-bug@gnu.org To: Peter Dyballa Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 19 14:46:58 2007 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1IirFf-0006iU-4C for ged-emacs-devel@m.gmane.org; Fri, 19 Oct 2007 14:46:55 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IirFX-0003bJ-GI for ged-emacs-devel@m.gmane.org; Fri, 19 Oct 2007 08:46:47 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IirFU-0003ZQ-1a for emacs-devel@gnu.org; Fri, 19 Oct 2007 08:46:44 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IirFS-0003Xi-FM for emacs-devel@gnu.org; Fri, 19 Oct 2007 08:46:43 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IirFS-0003XL-BE for emacs-devel@gnu.org; Fri, 19 Oct 2007 08:46:42 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1IirFR-0006CI-TK for emacs-devel@gnu.org; Fri, 19 Oct 2007 08:46:42 -0400 Original-Received: from mx10.gnu.org ([199.232.76.166]) by fencepost.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1IirFR-0001bb-KU for emacs-pretest-bug@gnu.org; Fri, 19 Oct 2007 08:46:41 -0400 Original-Received: from Debian-exim by monty-python.gnu.org with spam-scanned (Exim 4.60) (envelope-from ) id 1IirFN-0006AW-KT for emacs-pretest-bug@gnu.org; Fri, 19 Oct 2007 08:46:41 -0400 Original-Received: from mx2.suse.de ([195.135.220.15]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IirFN-00069g-1S for emacs-pretest-bug@gnu.org; Fri, 19 Oct 2007 08:46:37 -0400 Original-Received: from Relay1.suse.de (mail2.suse.de [195.135.221.8]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id 2EEEB22DA2; Fri, 19 Oct 2007 14:46:34 +0200 (CEST) X-Yow: SANTA CLAUS comes down a FIRE ESCAPE wearing bright blue LEG WARMERS.. He scrubs the POPE with a mild soap or detergent for 15 minutes, starring JANE FONDA!! In-Reply-To: (Peter Dyballa's message of "Fri\, 19 Oct 2007 14\:17\:13 +0200") User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/22.1 (gnu/linux) X-detected-kernel: by monty-python.gnu.org: Linux 2.4-2.6 X-detected-kernel: by monty-python.gnu.org: Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:81216 gmane.emacs.pretest.bugs:20165 Archived-At: Peter Dyballa writes: > When I invoke M-x shell the new buffer starts with: > > Warning: no access to tty (Bad file descriptor). > Thus no job control in this shell. > > Where is the source for these messages? They are most likely coming from the shell. > What are the criterions for this warning? Probably the shell could not open /dev/tty, ie. it has no controlling terminal. That happens when the process is using pipes instead of ptys. > Which elements are necessary for job control? The shell needs to be able to manipulate the process group of the controlling terminal. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany PGP key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED= 5 "And now for something completely different."