mtdparts

When I boot my system I get there errors:

uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector
0
Buffer I/O error on device mtdblock0, logical block 0
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector
8
Buffer I/O error on device mtdblock0, logical block 1
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector
16
Buffer I/O error on device mtdblock0, logical block 2
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector
24
Buffer I/O error on device mtdblock0, logical block 3
uncorrectable error : <3>end_request: I/O error, dev mtdblock0, sector
0
Buffer I/O error on device mtdblock0, logical block 0

- I get the same error with different distribution.

I guess it has something to do with the mtdparts function in U-boot,
but I do not know what I am supposed to do. Does it have anything to
do with my partition on the MC card? Do I need to care about this
error?

Thanks

I have a Debian install, and see the same messages. It doesn't seem
to affect the operation of the system, I think it happens
once somewhere during initialization of something.

Jon