Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753586AbYGELAZ (ORCPT ); Sat, 5 Jul 2008 07:00:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751170AbYGELAQ (ORCPT ); Sat, 5 Jul 2008 07:00:16 -0400 Received: from one.firstfloor.org ([213.235.205.2]:60329 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751025AbYGELAP (ORCPT ); Sat, 5 Jul 2008 07:00:15 -0400 Message-ID: <486F543D.8010409@firstfloor.org> Date: Sat, 05 Jul 2008 13:00:13 +0200 From: Andi Kleen User-Agent: Thunderbird 1.5.0.12 (X11/20060911) MIME-Version: 1.0 To: Alan Cox CC: Joe Peterson , Elias Oltmanns , =?ISO-8859-1?Q?T=F6r=F6k_Edwin?= , Linux Kernel Subject: Re: Ctrl+C doesn't interrupt process waiting for I/O References: <48661488.10304@gmail.com> <87fxqurqpz.fsf@denkblock.local> <486E83C3.1040509@skyrush.com> <20080704212335.4ffc8230@lxorguk.ukuu.org.uk> <871w29s5u2.fsf@basil.nowhere.org> <20080704221457.1f147225@lxorguk.ukuu.org.uk> <486E97F2.8020605@firstfloor.org> <20080704224441.63204bc4@lxorguk.ukuu.org.uk> <486E9F91.6010701@firstfloor.org> <20080705113434.41109492@lxorguk.ukuu.org.uk> In-Reply-To: <20080705113434.41109492@lxorguk.ukuu.org.uk> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 961 Lines: 29 Alan Cox wrote: >> So what kind of data do you want? Someone watching a wallclock while >> comparing Ctrl-Z+kill versus Ctrl-C on a IO intensive process? > > Latency traces with timestamps might be quite useful, they'd probably > also tell you why it happened. Ok so you're asking someone else to debug it. I can't reproduce it, nobody has provided > numbers so even if I wanted to work on it I couldn't do much. Well we had a patch (although I haven't tried it yet) http://marc.info/?l=linux-kernel&m=121489861508496&w=2 Is that not concrete enough? > Instead I have lots of real tty, ATA and other work that needs doing > which has quantified data, All the reporters provided time stamp traces? @) -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/