From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753202AbaKJOWT (ORCPT ); Mon, 10 Nov 2014 09:22:19 -0500 Received: from 251.110.2.81.in-addr.arpa ([81.2.110.251]:34408 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752621AbaKJOWS (ORCPT ); Mon, 10 Nov 2014 09:22:18 -0500 Date: Mon, 10 Nov 2014 14:22:00 +0000 From: One Thousand Gnomes To: "Theodore Ts'o" Cc: Austin S Hemmelgarn , Martin Tournoij , linux-kernel@vger.kernel.org Subject: Re: [RFC] The SIGINFO signal from BSD Message-ID: <20141110142200.676b5d04@alan.etchedpixels.co.uk> In-Reply-To: <20141105201404.GH27083@thunk.org> References: <1415200663.3247743.187387481.75CE9317@webmail.messagingengine.com> <545A7B00.1040309@gmail.com> <20141105201404.GH27083@thunk.org> Organization: Intel Corporation X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.23; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > wouldn't be accepted. (BTW, if you're going to do this, note that ^T > could be remapped to any control character via stty; so to do this we > would need to define an extra index in c_cc[] array in the struct > termios.) We have 19 entries in the array and no platforms that byte pack so that would actually be doable I think. I'm really dubious about its value in the Linux world. You could do far better teaching the GUI desktop to walk the process tree of clients and dump the window owners process subtrees in a nice pop up window. PS: Austin - SIGPWR was used on the System 5 boxes I used to indicate power had been *restored* not lost. The primary usage was in curses and termios using apps so that when the power came back on they would redraw the screens on all the terminals. You have to think back to a world of a generator/battery backed servers and non battery backed terminals for that to make sense. Alan