From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932811AbdBVO36 (ORCPT ); Wed, 22 Feb 2017 09:29:58 -0500 Received: from mail-io0-f174.google.com ([209.85.223.174]:36839 "EHLO mail-io0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932444AbdBVO3t (ORCPT ); Wed, 22 Feb 2017 09:29:49 -0500 MIME-Version: 1.0 In-Reply-To: <20161201114711.28697-1-chris@chris-wilson.co.uk> References: <20161201114711.28697-1-chris@chris-wilson.co.uk> From: Geert Uytterhoeven Date: Wed, 22 Feb 2017 15:29:47 +0100 X-Google-Sender-Auth: TFOcSweN3Ew3NcumvMTwbL8U9tg Message-ID: Subject: Re: locking: Add kselftests for ww_mutex To: Chris Wilson Cc: "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id v1MEU1hh016457 Hi Chris, On Thu, Dec 1, 2016 at 12:47 PM, Chris Wilson wrote: > Nicolai Hähnle was looking into a deadlock within ww_mutexes (that has > been fixed by Peter's mutex rewrite) and to support his changes, I > thought it was be useful to have a small validation suite for ww_mutex. How long do these selftests typically take? Do they need multiple CPU cores, lots of memory? I.e. after how much time without any output should I start to worry (on an emulated Atari running Linux/m68k ;-)? Thanks! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds