From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161326AbXCNOok (ORCPT ); Wed, 14 Mar 2007 10:44:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161325AbXCNOok (ORCPT ); Wed, 14 Mar 2007 10:44:40 -0400 Received: from web36706.mail.mud.yahoo.com ([209.191.85.40]:48205 "HELO web36706.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1161314AbXCNOoj (ORCPT ); Wed, 14 Mar 2007 10:44:39 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:X-YMail-OSG:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=S/eUT+ydnW+ViisD9T8w3a5CdQou4XUiZpXgHH6pIzJW7OHB1+x37P695jJvEWETD1ojps/Kubz8A0sIrvXC18bOeX7LCbJMwWbwV9mtIcP83xdDFubb7wUCUzsv8ZSwzifAFj72aCvhd3TAbkCObe3jaKzggV5KJON1ti6paZ4= ; Message-ID: <20070314144437.3695.qmail@web36706.mail.mud.yahoo.com> X-YMail-OSG: DrzKUL0VM1l8yap7pBJLyDdJ74hyk4JYGvIzx8jqX.wqrqMlm6_SA14H0Se2ol9nBwRgPwVXbEqSzeJRcXmScrPnAoWWrJWjMKoYaK8YeLQXoMkpY2fiP8OaHpLTVsotvhGN3ltUCDsvnBUVaBU8Vg5jgg-- Date: Wed, 14 Mar 2007 07:44:37 -0700 (PDT) From: Alex Dubov Subject: Weird MMC errors: 1 of 2 - bad ocr value To: Pierre Ossman Cc: linux-kernel@vger.kernel.org In-Reply-To: <45D9995F.9070108@drzeus.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Recently, I've obtained a bug report concerning an MMC card. Two problems are described, both sporadic. Problem 1: illegal ocr value is returned. You may notice, in the non-working case, obviously incorrect ocr value (0xffffffff) is returned. The card won't work after this, unless reinserted. What, to your opinion, shall we do about it? ---- Normal case - everything works: ---------- Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 80ff8000 00000000 00000000 00000000 Mar 14 09:15:39 Tirion kernel: mmc0: starting CMD2 arg 00000000 flags 00000067 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x2, arg: 0x0, mask: 0x1240 Mar 14 09:15:39 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:39 Tirion kernel: mmc0: req done (CMD2): 0/0/0: 06000131 364d2020 20011d43 332479ad ------------------- ------- Error case: OCR value is bad, card is left in bad state and won't work: --------- Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1001, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD1): 0/0/0: 00ff8000 00000000 00000000 00000000 Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD1 arg 00300000 flags 00000061 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x1, arg: 0x300000, mask: 0x1340 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 1, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD1): 0/0/0: ffffffff 00000000 00000000 00000000 Mar 14 09:15:24 Tirion kernel: mmc0: starting CMD2 arg 00000000 flags 00000067 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: executing opcode 0x2, arg: 0x0, mask: 0x1240 Mar 14 09:15:24 Tirion kernel: tifm_sd tifm_sd0:1: host event: host_status 80, flags 0 Mar 14 09:15:24 Tirion kernel: mmc0: req done (CMD2): 1/0/0: 00000000 00000000 00000000 00000000 --------------------- ____________________________________________________________________________________ Don't get soaked. Take a quick peek at the forecast with the Yahoo! Search weather shortcut. http://tools.search.yahoo.com/shortcuts/#loc_weather