mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new SDHC card on SPI
mmcblk0: mmc0:0000 SU08G 7.40 GiB
mmcblk0:<7>mmc0: starting CMD18 arg 00000000 flags 000000b5
mmcblk0: retrying using single block read
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 0
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 1
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 2
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 3
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 4
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 5
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 6
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 7
Buffer I/O error on device mmcblk0, logical block 0
mmcblk0: retrying using single block read
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 0
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 1
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 2
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 3
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 4
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 5
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 6
mmcblk0: error -22 sending status comand<3>mmcblk0: error -22 sending read/write command, response 0x4, card status 0x4
end_request: I/O error, dev mmcblk0, sector 7
Buffer I/O error on device mmcblk0, logical block 0
unable to read partition table