oddity mounting MMC/SD cards

[Alexander Motin]

On 14.08.2011 16:34, Michael Butler wrote:
> On 08/14/11 07:13, Alexander Motin wrote:
>
>> On 13.08.2011 23:56, Michael Butler wrote:
>>> vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
>>> Aug 13 16:53:38 toshi kernel: GEOM_PART: partition 1 has end offset
>>> beyond last LBA: 31116287>   5950463
>>> Aug 13 16:53:38 toshi kernel: GEOM_PART: integrity check failed (mmcsd0,
>>> MBR)
>>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>
>> It looks like consequence of r222475. Could you try this patch:
>>
>> --- dev/mmc/mmcsd.c.prev        2011-08-14 14:09:35.000000000 +0300
>> +++ dev/mmc/mmcsd.c     2011-08-14 14:09:14.000000000 +0300
>> @@ -137,7 +137,7 @@ mmcsd_attach(device_t dev)
>>          d->d_drv1 = sc;
>>          d->d_maxsize = 4*1024*1024;     /* Maximum defined SD card AU
>> size. */
>>          d->d_sectorsize = mmc_get_sector_size(dev);
>> -       d->d_mediasize = mmc_get_media_size(dev) * d->d_sectorsize;
>> +       d->d_mediasize = (off_t)mmc_get_media_size(dev) * d->d_sectorsize;
>>          d->d_stripeoffset = 0;
>>          d->d_stripesize = mmc_get_erase_sector(dev) * d->d_sectorsize;
>>          d->d_unit = device_get_unit(dev);
>
> That worked :-)
>
> However, I found another (smaller) card where it didn't help :-(
>
> sdhci0-slot0: Card inserted
> mmc0:<MMC/SD bus>  on sdhci0
> mmc0: Probing bus
> mmc0: SD probe: OK (OCR: 0x00ff8000)
> mmc0: Current OCR: 0x00ff8000
> mmc0: Probing cards
> mmc0: New card detected (CID 02544d5341303447049c02a7f6009b00)
> mmc0: Card at relative address 4660 added:
> mmc0:  card: SD High Capacity (0x2/0x544d/"SA04G" rev 0.4 m/d 11.2009
> s/n 9c02a7f6)
> mmc0:  bus: 4bit, 50MHz, high speed timing
> mmc0:  memory: 7733248 blocks, erase sector 8192 blocks, read-only
> mmc0: setting transfer rate to 30.000MHz
> mmcsd0: 3776MB<SDHC Memory Card>  (read-only) at mmc0 24MHz/4bit
> GEOM: new disk mmcsd0
> mmc0: setting bus width to 4 bits
> GEOM_PART: partition 1 has end offset beyond last LBA: 7741438>  7733247
> GEOM_PART: integrity check failed (mmcsd0, MBR)
>
> The complaint appears to be valid, given fdisk's output .. is this
> something to do with the 'relative address'?
>
> imb at toshi:/usr/src>  fdisk /dev/mmcsd0
> ******* Working on device /dev/mmcsd0 *******
> parameters extracted from in-core disklabel are:
> cylinders=481 heads=255 sectors/track=63 (16065 blks/cyl)
>
> parameters to be used for BIOS calculations are:
> cylinders=481 heads=255 sectors/track=63 (16065 blks/cyl)
>
> Media sector size is 512
> Warning: BIOS sector numbering starts with sector 1
> Information from DOS bootblock is:
> The data for partition 1 is:
> sysid 11 (0x0b),(DOS or Windows 95 with 32 bit FAT)
>      start 8192, size 7733247 (3775 Meg), flag 0
>          beg: cyl 1/ head 2/ sector 3;
>          end: cyl 960/ head 48/ sector 48

This time it looks different. Card size looks consistent, but partition 
is bigger then card size. Could you check card and partition sizes in 
some other (USB) card reader?

-- 
Alexander Motin