Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762077AbYCCVHM (ORCPT ); Mon, 3 Mar 2008 16:07:12 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761784AbYCCVGt (ORCPT ); Mon, 3 Mar 2008 16:06:49 -0500 Received: from gateway.drzeus.cx ([85.8.24.16]:57981 "EHLO smtp.drzeus.cx" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756858AbYCCVGs (ORCPT ); Mon, 3 Mar 2008 16:06:48 -0500 Date: Mon, 3 Mar 2008 22:05:30 +0100 From: Pierre Ossman To: Pavel Machek Cc: huggie@earth.li, linux-kernel@vger.kernel.org Subject: Re: Scheduler broken? sdhci issues with scheduling Message-ID: <20080303220530.49201544@mjolnir.drzeus.cx> In-Reply-To: <20080303203808.GH13869@elf.ucw.cz> References: <20080229115256.GG24533@paranoidfreak.co.uk> <20080302104031.GB3861@ucw.cz> <20080303204300.69cbe392@mjolnir.drzeus.cx> <20080303203808.GH13869@elf.ucw.cz> X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.8; i386-redhat-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 Content-Length: 1034 Lines: 27 On Mon, 3 Mar 2008 21:38:08 +0100 Pavel Machek wrote: > On Mon 2008-03-03 20:43:00, Pierre Ossman wrote: > > The problem is that the kernel sleeps _less_ than asked for, not more. No hardware can be expected to work if its needed delays aren't respected. > > > > Oops, that's bad. Can you perhaps create small testcase for > scheduler/timer people to play with? > > Also... you may want to switch timesources. notsc fixed "wait for much > too long" for me. I'm afraid I could never reproduce the problem. So it's Simon that will have to do the tests for now.. -- -- Pierre Ossman Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org -- 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/