Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755679Ab1DLWsp (ORCPT ); Tue, 12 Apr 2011 18:48:45 -0400 Received: from void.printf.net ([89.145.121.20]:60765 "EHLO void.printf.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750901Ab1DLWso (ORCPT ); Tue, 12 Apr 2011 18:48:44 -0400 From: Chris Ball To: Cyril Hrubis Cc: pavel@ucw.cz, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, eric.y.miao@gmail.com, utx@penguin.cz, zaurus-devel@www.linuxtogo.org, marek.vasut@gmail.com, linux-mmc@vger.kernel.org Subject: Re: zaurus: mmcblk0: error -110 References: <20110412151547.GC20815@atrey.karlin.mff.cuni.cz> <20110412193944.GC2665@atrey.karlin.mff.cuni.cz> <20110412205421.GD2665@atrey.karlin.mff.cuni.cz> <20110412224333.GA22640@atrey.karlin.mff.cuni.cz> Date: Tue, 12 Apr 2011 18:53:29 -0400 In-Reply-To: <20110412224333.GA22640@atrey.karlin.mff.cuni.cz> (Cyril Hrubis's message of "Wed, 13 Apr 2011 00:43:33 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1122 Lines: 35 Hi, On Tue, Apr 12 2011, Cyril Hrubis wrote: >> > mmc0: error -95 whilst initialising SD card >> >> That's interesting. Would you mind trying to bisect? (Knowing whether >> 2.6.38 final does it, for example, would be very helpful.) > > It may need one or two tries on 2.6.38 but it's there too. > >> There aren't many -EOPNOTSUPP returns in the stack. I see: >> >> card/block.c: mmc_blk_issue_secdiscard_rq and mmc_blk_issue_discard_rq >> card/core.c: mmc_erase >> core/sd_ops.c: mmc_app_cmd >> >> Mind doing some instrumentation to figure out which it is? > > Fails in the mmc_app_cmd. Okay. mmc_app_cmd() hasn't changed for years, so I'm afraid I don't have any strong leads for you -- further bisection (you're pretty sure this is a regression?) would be very useful. Thanks, - Chris. -- Chris Ball One Laptop Per Child -- 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/