[Gumstix-users] problems with micro-SD cards (net-micro-sd board with XM4)

[Jay S. <jay...@ty...>]

I frequently get the following type of errors with my XM4/net-micro-sd 
setup.

I have a cramfs filesystem image on  micro-SD card (FAT filesystem) 
mounted via a loopback.

I've also seen similar I/O errors with a native ext3 formated filesystem 
(no cramfs or loopback).

end_request: I/O error, dev mmcblk0, sector 31357
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31365
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31373
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31381
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31389
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31429
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31429
Buffer I/O error on device loop0, logical block 3868
mmcblk0: error 1 sending read/write command
end_request: I/O error, dev mmcblk0, sector 31429
Buffer I/O error on device loop0, logical block 3868


Anyone else having similar problems?   Solutions?
What cards are you using?     Remember, I also had issues with Kingston 
uSD cards with this setup.   I'm using Transcend cards now.    The 
Kingston cards gave me issues trying to read them in u-boot as well.   
The Transcends cards work well with u-boot.


Thanks,
Jay Snyder