fdisk ci20

fdisk -l
[ 1050.521538] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.542383] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.563151] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.583967] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.604484] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.625387] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.645606] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.665969] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.685918] nand_do_read_ops: return -EBADMSG!
[ 1050.702584] end_request: I/O error, dev mtdblock0, sector 0
[ 1050.719476] Buffer I/O error on device mtdblock0, logical block 0
[ 1050.737181] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737330] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737398] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737473] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737541] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737627] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737699] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737816] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.737841] nand_do_read_ops: return -EBADMSG!
[ 1050.737859] end_request: I/O error, dev mtdblock0, sector 8
[ 1050.737875] Buffer I/O error on device mtdblock0, logical block 1
[ 1050.738750] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.738947] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.739068] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1050.996014] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.015224] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.015303] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.033643] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.051703] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.051749] nand_do_read_ops: return -EBADMSG!
[ 1051.051767] end_request: I/O error, dev mtdblock0, sector 16
[ 1051.051783] Buffer I/O error on device mtdblock0, logical block 2
[ 1051.069823] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.131745] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.149791] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.167804] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.185741] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.203581] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.221298] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.238886] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.238927] nand_do_read_ops: return -EBADMSG!
[ 1051.238946] end_request: I/O error, dev mtdblock0, sector 24
[ 1051.238962] Buffer I/O error on device mtdblock0, logical block 3
[ 1051.256328] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.315071] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.332456] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.349751] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.366717] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.383694] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.400577] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.417374] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.417423] nand_do_read_ops: return -EBADMSG!
[ 1051.417441] end_request: I/O error, dev mtdblock0, sector 0
[ 1051.417457] Buffer I/O error on device mtdblock0, logical block 0
[ 1051.493593] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.510603] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.527347] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.544493] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.561114] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.577586] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.594059] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.610217] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.626226] nand_do_read_ops: return -EBADMSG!
[ 1051.638055] end_request: I/O error, dev mtdblock0, sector 0
[ 1051.651045] Buffer I/O error on device mtdblock0, logical block 0
[ 1051.665779] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.682434] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.699109] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.715398] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.731680] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.747997] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.764305] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.780661] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.797306] nand_do_read_ops: return -EBADMSG!
[ 1051.809424] end_request: I/O error, dev mtdblock0, sector 8
[ 1051.822442] Buffer I/O error on device mtdblock0, logical block 1
[ 1051.837200] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.853694] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.870229] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.886782] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.903562] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.920136] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.936717] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.953271] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1051.969769] nand_do_read_ops: return -EBADMSG!
[ 1051.982015] end_request: I/O error, dev mtdblock0, sector 16
[ 1051.995188] Buffer I/O error on device mtdblock0, logical block 2
[ 1052.010367] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.026992] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.043617] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.060293] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.076943] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.093560] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.110466] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.127171] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.143722] nand_do_read_ops: return -EBADMSG!
[ 1052.156056] end_request: I/O error, dev mtdblock0, sector 24
[ 1052.169310] Buffer I/O error on device mtdblock0, logical block 3
[ 1052.184283] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.200971] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.217865] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.234517] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.250980] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.267476] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.284537] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.301600] jz4780-bch jz4780-bch.0: uncorrectable errors when do request from jz4780-nand.0
[ 1052.318678] nand_do_read_ops: return -EBADMSG!
[ 1052.330755] end_request: I/O error, dev mtdblock0, sector 0
[ 1052.344074] Buffer I/O error on device mtdblock0, logical block 0

Disk /dev/mtdblock1: 4282 MB, 4282384384 bytes
255 heads, 63 sectors/track, 520 cylinders, total 8364032 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mtdblock1 doesn't contain a valid partition table

Disk /dev/mmcblk0: 3965 MB, 3965190144 bytes
89 heads, 60 sectors/track, 1450 cylinders, total 7744512 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x9c990d25

        Device Boot      Start         End      Blocks   Id  System
/dev/mmcblk0p1            4096     7743487     3869696   83  Linux
root@ci20-1277:~#