[ale] attempt to access beyond end of device

krwatson at cc.gatech.edu krwatson at cc.gatech.edu
Mon Oct 20 16:57:42 EDT 2008


>       Chris Fowler wrote:
>
>
>               I just picked up a MicroSD card At Fry's that was on sale.  I
> can read
>               it in Linux just fine but see these error messages from the
> kernel
>               *
>               [1906763.160605] attempt to access beyond end of device
>               [1906763.160609] sde: rw=0, want=3985408, limit=1992705
>               [1906763.160621] attempt to access beyond end of device
>               [1906763.160625] sde: rw=0, want=3985408, limit=1992705*
>
>               Should I be concerned?
>               I see a similar message when I plug my Explorist 210 GPS into
> Ubuntu as
>               well but I can still read and write maps to it.    Sould I
> reformat the
>               SD card
>               using mkfs.vfat?
>
>
>
>       what does a df -h tell you? is the size right?
>
>
>
>
>
>
> This is weird.  It is labeled as 2.0GB and has a 2.0GB partition but
> Linux sees it as 1GB.
>
> Disk /dev/sde: 1020 MB, 1020264960 bytes
> 29 heads, 28 sectors/track, 2454 cylinders
> Units = cylinders of 812 * 512 = 415744 bytes
> Disk identifier: 0x00000000
>
> Could it be a limitation in my USB reader?
>
>
>
>
> --
> Chris Fowler
> OutPost Sentinel, LLC
> Support @ SIP/support at pbx.opsdc.com
>  or 678-804-8193
> Email Support @ support at outpostsentinel.com


Chris,

To add insult to misery flash drive sizes are commonly given in Base 10 so

2GB = 2,000,000,000 Bytes = 1.862645149 GiBytes

I think Linux will display GiBytes.

Keith

--

Keith R. Watson                        Georgia Institute of Technology
Systems Support Specialist IV          College of Computing
keith.watson at cc.gatech.edu             801 Atlantic Drive NW
(404) 385-7401                         Atlanta, GA  30332-0280




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