Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 27 Jan 2002 18:10:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 27 Jan 2002 18:09:52 -0500 Received: from smtp1.vol.cz ([195.250.128.73]:10246 "EHLO smtp1.vol.cz") by vger.kernel.org with ESMTP id ; Sun, 27 Jan 2002 18:09:42 -0500 Date: Sun, 27 Jan 2002 21:52:53 +0100 From: Pavel Machek To: alan@lxorguk.ukuu.org.uk Cc: kernel list Subject: preempt & ne2k Message-ID: <20020127215253.A793@elf.ucw.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.23i X-Warning: Reading this can be dangerous to your mental health. Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > testing the patch complaining about, AND one that seems like it could be > > addressed by using IRQ disabling as a latency guard in addition to spinlocks. > > I dont believe anyone has tested the driver hard with pre-empt. Its not that > this driver can't be fixed. Its that this is one tiny example of maybe > thousands of other similar flaws lurking. There is no obvious automated way > to find them either. So.... you have shown performance problem in one driver. Maybe *bad* performance problem, but only performance problem. There may be other performance problems out there. And what? Pavel -- When do you have heart between your knees? - 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/