From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44FC1C77B7C for ; Wed, 31 May 2023 11:34:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234672AbjEaLe0 (ORCPT ); Wed, 31 May 2023 07:34:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42186 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232198AbjEaLeX (ORCPT ); Wed, 31 May 2023 07:34:23 -0400 Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9308418C for ; Wed, 31 May 2023 04:34:09 -0700 (PDT) Received: from [127.0.0.1] (p578adb1c.dip0.t-ipconnect.de [87.138.219.28]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id B49F58609E; Wed, 31 May 2023 13:34:06 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1685532848; bh=ihcfNNJVi/mWMA5T7jcEcjm/Bn8EtGoR2ApPoI7Aobs=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=kOFSRHu2Qtwkrrcwt8SZpOjypnmqBF69t5mR1p2XCLQynIYqjiwiX5SZ4TxKeQnUz z5EzJaXbM4gwPBJfzMIU8GP3WEyV3wREa69IfqvCtxvz91IVvBqIFs+bRH2af9mYgO ACVLSM6n1L8BBaiBKLZc2d6AKPLv9kV0hmU9b/G8hg9eDVGURt6LSgR4DCM/FG+xFe +bdxUYa4CALjqXPcH2I8FWbaBsEQ2NTg5iaAO8lAK9bgyIDqY6y5vWM3AQeQZCAXJe 5EPQ9fc0WF5qcRrWtK6aJvjSjpQDnUrvbih+jyS25pkiywVMlfNO3Jz5iIryhHYuAo Do2wSnLgz1sjA== Message-ID: Date: Wed, 31 May 2023 13:34:06 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: [PATCH] [RFC] Revert "mmc: core: Fixup support for writeback-cache for eMMC and SD" To: Adrian Hunter , linux-mmc@vger.kernel.org Cc: =?UTF-8?Q?Christian_L=c3=b6hle?= , Avri Altman , Jens Axboe , Michael Wu , Ming Lei , Seunghui Lee , Ulf Hansson References: <20230531002740.1235620-1-marex@denx.de> Content-Language: en-US From: Marek Vasut In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org On 5/31/23 07:46, Adrian Hunter wrote: > On 31/05/23 03:27, Marek Vasut wrote: >> This reverts commit 08ebf903af57cda6d773f3dd1671b64f73b432b8. >> >> On STM32MP153C DHCOR DRC Compact with microSD card >> Kingston Canvas Go! Plus MicroSDXC I 64 GiB U3/V30/A2 SDCG3/64GB >> it is no longer possible to mount ext4 filesystem. >> >> Git bisect points to this commit which is being reverted here. A bit of >> investigation shows that for non-working microSD cards >> cache_enabled=TRUE fua_enabled=false >> For working microSD card (Kingston Canvas React Plus, MicroSDXC II >> 64 GiB U3/V90/A1 SDCR2/64GB) >> cache_enabled=FALSE fua_enabled=false >> >> It seems enabling the cache for SD cards causes the issue. Before the >> reverted commit, the cache was not reported enabled for SD cards. I am >> not sure whether such blunt revert is the correct solution however, any >> ideas ? > > This does not disable the cache, it disables the block layer from issuing > cache flushes (by telling it there is no cache being used). > > It would be good to know what commands are failing, which should be visible > in the kernel messages if dynamic debug is enabled: > > Dynamic debug for mmc > --------------------- > > Kernel must be configured: > > CONFIG_DYNAMIC_DEBUG=y > > To enable mmc debug via sysfs: > > echo 'file drivers/mmc/core/* +p' > /sys/kernel/debug/dynamic_debug/control > echo 'file drivers/mmc/host/* +p' > /sys/kernel/debug/dynamic_debug/control > > To enable mmc debug via kernel command line: > > dyndbg="file drivers/mmc/core/* +p;file drivers/mmc/host/* +p" > > To disable mmc debug: > > echo 'file drivers/mmc/core/* -p' > /sys/kernel/debug/dynamic_debug/control > echo 'file drivers/mmc/host/* -p' > /sys/kernel/debug/dynamic_debug/control > > More general information in kernel documentation in kernel tree: > > Documentation/admin-guide/dynamic-debug-howto.rst Log is below, I added newlines around the mount failure. Do you see anything problematic there ? $ echo 'file drivers/mmc/core/* +p' > /sys/kernel/debug/dynamic_debug/control ; echo 'file drivers/mmc/host/* +p' > /sys/kernel/debug/dynamic_debug/control ; echo 8 > /proc/sys/kernel/printk ; mount /dev/mmcblk1p4 /mnt [ 61.061029] [ 61.065637] mmc1: starting CMD18 arg 00002002 flags 000000b5 [ 61.071144] mmc1: blksz 512 blocks 2 flags 00000200 tsac 100 ms nsac 0 [ 61.078096] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.083302] mmci-pl18x 58005000.mmc: blksz 0200 blks 0002 flags 00000200 [ 61.090012] mmci-pl18x 58005000.mmc: op 17 arg 00000002 flags 00000015 [ 61.096531] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.102332] mmci-pl18x 58005000.mmc: op 12 arg 00002002 flags 000000b5 [ 61.108836] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.114575] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.120371] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.127178] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.134084] mmc1: 1024 bytes transferred: 0 [ 61.138658] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.145533] [ 61.150946] mmc1: starting CMD18 arg 00002000 flags 000000b5 [ 61.156609] mmc1: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0 [ 61.163426] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.168759] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000200 [ 61.175368] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.181985] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.187682] mmci-pl18x 58005000.mmc: op 12 arg 00002000 flags 000000b5 [ 61.194185] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.199979] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.205769] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.212574] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.219478] mmc1: 4096 bytes transferred: 0 [ 61.224050] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.231166] [ 61.236378] mmc1: starting CMD18 arg 00002002 flags 000000b5 [ 61.241983] mmc1: blksz 512 blocks 2 flags 00000200 tsac 100 ms nsac 0 [ 61.248940] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.254169] mmci-pl18x 58005000.mmc: blksz 0200 blks 0002 flags 00000200 [ 61.260779] mmci-pl18x 58005000.mmc: op 17 arg 00000002 flags 00000015 [ 61.267405] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.273101] mmci-pl18x 58005000.mmc: op 12 arg 00002002 flags 000000b5 [ 61.279603] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.285431] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.291125] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.298032] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.304937] mmc1: 1024 bytes transferred: 0 [ 61.309409] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.316256] [ 61.321768] mmc1: starting CMD18 arg 00002000 flags 000000b5 [ 61.327459] mmc1: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0 [ 61.334360] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.339459] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000200 [ 61.346167] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.352782] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.358478] mmci-pl18x 58005000.mmc: op 12 arg 00002000 flags 000000b5 [ 61.365082] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.370776] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.376565] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.383371] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.390275] mmc1: 4096 bytes transferred: 0 [ 61.394848] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.401885] [ 61.407193] mmc1: starting CMD18 arg 00002002 flags 000000b5 [ 61.412794] mmc1: blksz 512 blocks 2 flags 00000200 tsac 100 ms nsac 0 [ 61.419748] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.424973] mmci-pl18x 58005000.mmc: blksz 0200 blks 0002 flags 00000200 [ 61.431582] mmci-pl18x 58005000.mmc: op 17 arg 00000002 flags 00000015 [ 61.438204] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.443901] mmci-pl18x 58005000.mmc: op 12 arg 00002002 flags 000000b5 [ 61.450404] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.456232] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.461927] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.468834] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.475739] mmc1: 1024 bytes transferred: 0 [ 61.480210] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.487054] [ 61.492462] mmc1: starting CMD18 arg 00002000 flags 000000b5 [ 61.498251] mmc1: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0 [ 61.505160] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.510260] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000200 [ 61.516969] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.523592] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.529288] mmci-pl18x 58005000.mmc: op 12 arg 00002000 flags 000000b5 [ 61.535789] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.541583] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.547271] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.554177] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.561082] mmc1: 4096 bytes transferred: 0 [ 61.565654] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.572440] [ 61.578017] mmc1: starting CMD18 arg 00002008 flags 000000b5 [ 61.583653] mmc1: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0 [ 61.590465] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.595686] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000200 [ 61.602396] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.608915] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.614712] mmci-pl18x 58005000.mmc: op 12 arg 00002008 flags 000000b5 [ 61.621215] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.627034] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.632727] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.639633] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.646437] mmc1: 4096 bytes transferred: 0 [ 61.651010] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.658908] [ 61.663421] mmc1: starting CMD18 arg 00003be8 flags 000000b5 [ 61.669102] mmc1: blksz 512 blocks 264 flags 00000200 tsac 100 ms nsac 0 [ 61.676155] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.681355] mmci-pl18x 58005000.mmc: blksz 0200 blks 0108 flags 00000200 [ 61.688064] mmci-pl18x 58005000.mmc: op 17 arg 00000108 flags 00000015 [ 61.694589] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.700284] mmci-pl18x 58005000.mmc: op 12 arg 00003be8 flags 000000b5 [ 61.706887] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.712581] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.718372] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000100 [ 61.724060] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.730965] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.737870] mmc1: 135168 bytes transferred: 0 [ 61.742544] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.749064] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.755336] [ 61.760649] mmc1: starting CMD18 arg 00442000 flags 000000b5 [ 61.766327] mmc1: blksz 512 blocks 8 flags 00000200 tsac 100 ms nsac 0 [ 61.773144] mmc1: CMD12 arg 00000000 flags 00000095 [ 61.778489] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000200 [ 61.785100] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.791616] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.797414] mmci-pl18x 58005000.mmc: op 12 arg 00442000 flags 000000b5 [ 61.803916] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.809710] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.815399] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.822306] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 61.829211] mmc1: 4096 bytes transferred: 0 [ 61.833683] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.833952] mmc0: starting CMD7 arg fffd0000 flags 00000015 [ 61.840205] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.845820] mmci-pl18x 48004000.mmc: op 07 arg fffd0000 flags 00000015 [ 61.853036] [ 61.858074] mmci-pl18x 48004000.mmc: irq0 (data+cmd) 00000040 [ 61.858098] mmc0: req done (CMD7): 0: 00001ed7 00000000 00000000 00000000 [ 61.876506] mmc1: starting CMD25 arg 00002000 flags 000000b5 [ 61.882106] mmc1: blksz 512 blocks 8 flags 00000100 tsac 3000 ms nsac 0 [ 61.889107] mmc1: CMD12 arg 00000000 flags 0000049d [ 61.894346] mmci-pl18x 58005000.mmc: blksz 0200 blks 0008 flags 00000100 [ 61.900957] mmci-pl18x 58005000.mmc: op 17 arg 00000008 flags 00000015 [ 61.907588] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.913283] mmci-pl18x 58005000.mmc: op 19 arg 00002000 flags 000000b5 [ 61.919786] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.925612] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 61.931309] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 61.938219] mmc1: req done (CMD25): 0: 00000900 00000000 00000000 00000000 [ 61.945125] mmc1: 4096 bytes transferred: 0 [ 61.949598] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 61.956107] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.961888] mmc1: starting CMD13 arg 50480000 flags 00000195 [ 61.967581] mmci-pl18x 58005000.mmc: op 0d arg 50480000 flags 00000195 [ 61.974026] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 61.979718] mmc1: req done (CMD13): 0: 00000900 00000000 00000000 00000000 [ 61.986630] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 61.992588] mmc1: starting CMD49 arg 10020a00 flags 00000035 [ 61.998152] mmc1: blksz 512 blocks 1 flags 00000100 tsac 3000 ms nsac 0 [ 62.005158] mmci-pl18x 58005000.mmc: blksz 0200 blks 0001 flags 00000100 [ 62.011778] mmci-pl18x 58005000.mmc: op 31 arg 10020a00 flags 00000035 [ 62.018317] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 62.024011] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000100 [ 62.029801] mmc1: req done (CMD49): 0: 00000900 00000000 00000000 00000000 [ 62.036708] mmc1: 512 bytes transferred: 0 [ 62.041083] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 62.046988] mmc1: starting CMD48 arg 10020a00 flags 000000b5 [ 62.052487] mmc1: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0 [ 62.059443] mmci-pl18x 58005000.mmc: blksz 0200 blks 0001 flags 00000200 [ 62.066154] mmci-pl18x 58005000.mmc: op 30 arg 10020a00 flags 000000b5 [ 62.072688] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 62.078382] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000100 [ 62.084173] mmc1: req done (CMD48): 0: 00000900 00000000 00000000 00000000 [ 62.091081] mmc1: 512 bytes transferred: 0 [ 62.095455] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 62.101381] I/O error, dev mmcblk1, sector 8192 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 2 [ 62.110223] Buffer I/O error on dev mmcblk1p4, logical block 0, lost sync page write [ 62.117996] EXT4-fs (mmcblk1p4): I/O error while writing superblock [ 62.124320] EXT4-fs (mmcblk1p4): mount failed [ 62.129676] [ 62.134452] mmc1: starting CMD18 arg 00002000 flags 000000b5 [ 62.140055] mmc1: blksz 512 blocks 2 flags 00000200 tsac 100 ms nsac 0 [ 62.147003] mmc1: CMD12 arg 00000000 flags 00000095 [ 62.152205] mmci-pl18x 58005000.mmc: blksz 0200 blks 0002 flags 00000200 [ 62.158915] mmci-pl18x 58005000.mmc: op 17 arg 00000002 flags 00000015 [ 62.165431] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 62.171229] mmci-pl18x 58005000.mmc: op 12 arg 00002000 flags 000000b5 [ 62.177734] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 62.183566] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000140 [ 62.189262] mmc1: req done : 0: 00000900 00000000 00000000 00000000 [ 62.196169] mmc1: req done (CMD18): 0: 00000900 00000000 00000000 00000000 [ 62.202973] mmc1: 1024 bytes transferred: 0 [ 62.207546] mmc1: (CMD12): 0: 00000000 00000000 00000000 00000000 [ 62.213966] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 62.220406] mmc1: starting CMD17 arg 00002000 flags 000000b5 [ 62.225497] mmc1: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0 [ 62.232324] mmci-pl18x 58005000.mmc: blksz 0200 blks 0001 flags 00000200 [ 62.239033] mmci-pl18x 58005000.mmc: op 11 arg 00002000 flags 000000b5 [ 62.245571] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 62.251267] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000100 [ 62.257058] mmc1: req done (CMD17): 0: 00000900 00000000 00000000 00000000 [ 62.263966] mmc1: 512 bytes transferred: 0 [ 62.268347] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 [ 62.274791] mmc1: starting CMD17 arg 00002000 flags 000000b5 [ 62.279800] mmc1: blksz 512 blocks 1 flags 00000200 tsac 100 ms nsac 0 [ 62.286783] mmci-pl18x 58005000.mmc: blksz 0200 blks 0001 flags 00000200 [ 62.293396] mmci-pl18x 58005000.mmc: op 11 arg 00002000 flags 000000b5 [ 62.299912] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000040 [ 62.305612] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000100 [ 62.311403] mmc1: req done (CMD17): 0: 00000900 00000000 00000000 00000000 [ 62.318309] mmc1: 512 bytes transferred: 0 [ 62.322801] mmci-pl18x 58005000.mmc: irq0 (data+cmd) 00000000 mount: mounting /dev/mmcblk1p4 on /mnt failed: Invalid argument ~ # [ 62.873917] mmc0: starting CMD7 arg fffd0000 flags 00000015 [ 62.878152] mmci-pl18x 48004000.mmc: op 07 arg fffd0000 flags 00000015 [ 62.884681] mmci-pl18x 48004000.mmc: irq0 (data+cmd) 00000040 [ 62.890381] mmc0: req done (CMD7): 0: 00001ed7 00000000 00000000 00000000