Re: sdmmc / sdhc trouble

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

On 2 November 2012 12:54, Patrick Welche <prlw1%cam.ac.uk@localhost> wrote:
> I just tried a new kingston technology sd4 card:
>
> (-current/amd64:)
> sdhc0 at pci1 dev 0 function 0: Ricoh 5U823 SD/MMC Controller (rev. 0x04)
> sdhc0: interrupting at ioapic0 pin 16
> sdhc0: SD Host Specification 3.0, rev.5
> sdhc0: using DMA transfer
> sdmmc0 at sdhc0 slot 0
> ld0 at sdmmc0: <SD16G>
> ld0: 14756 MB, 7495 cyl, 64 head, 63 sec, 512 bytes/sect x 30220288 sectors
> ld0: 4-bit width, bus clock 50.000 MHz
>
> but:
>
> dd if=2012-09-18-wheezy-raspbian.img of=/dev/rld0d
> dd: /dev/rld0d: Input/output error
> 1+0 records in
> 0+0 records out
> 0 bytes transferred in 0.001 secs (0 bytes/sec)
>
> ld0d: error writing fsbn 0 (ld0 bn 0; cn 0 tn 0 sn 0)
>
> disklabel:
> label: fictitious
>  d:  30220288         0     unused      0     0        # (Cyl.      0 -   
> 7495*)
>  e:  30212096      8192      MSDOS                     # (Cyl.      2*-   
> 7495*)
>
> gnu# mount /dev/ld0e /mnt
> gnu# ls /mnt
> gnu# df -h /mnt
> Filesystem         Size       Used      Avail %Cap Mounted on
> /dev/ld0e           14G        32K        14G   0% /mnt
> gnu# cd /mnt
> gnu# ls
> gnu# touch foo
> gnu# ls -l
> total 0
> -rwxr-xr-x  1 root  wheel  0 Nov  2 12:51 foo
> gnu# echo hello  > bar
> bar: Input/output error.
> gnu# ls -l
> gnu# pwd
> /mnt
> gnu# mount
> ...
> /dev/ld0e on /mnt type msdos (local)
>
> foo disappeared?
>
> ld0e: error writing fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
> ld0e: error reading fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
> ld0e: error reading fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
> ld0e: error reading fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
> ld0e: error reading fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
> ld0e: error reading fsbn 8192 of 8192-8255 (ld0 bn 16384; cn 4 tn 4 sn 4)
>
> How can I use the card?
>
> Cheers,
>
> Patrick


Same with a type 10 Verbatim SDhc card under -current amd64. This has
been problematic under other systems, though. I'll try it later under
Windows.

Chavdar





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