如题，用串口烧写了内核与文件系统，发生以下错误，请问应该怎么解决？
DM368, Cramfs文件系统
[ 1.716893] bootserver=192.168.0.61, rootserver=192.168.0.61, rootpath=
[ 1.724831] Waiting 2sec before mounting root device...
[ 3.740765] end_request: I/O error, dev mtdblock3, sector 0
[ 3.746382] Buffer I/O error on device mtdblock3, logical block 0
[ 3.752984] end_request: I/O error, dev mtdblock3, sector 0
[ 3.758598] Buffer I/O error on device mtdblock3, logical block 0
[ 3.764934] end_request: I/O error, dev mtdblock3, sector 8
[ 3.770543] Buffer I/O error on device mtdblock3, logical block 1
[ 3.777120] end_request: I/O error, dev mtdblock3, sector 8
[ 3.782735] Buffer I/O error on device mtdblock3, logical block 1
[ 3.789063] end_request: I/O error, dev mtdblock3, sector 16
[ 3.794758] Buffer I/O error on device mtdblock3, logical block 2
[ 3.801333] end_request: I/O error, dev mtdblock3, sector 16
[ 3.807035] Buffer I/O error on device mtdblock3, logical block 2
[ 3.813378] end_request: I/O error, dev mtdblock3, sector 24
[ 3.819072] Buffer I/O error on device mtdblock3, logical block 3
[ 3.825578] end_request: I/O error, dev mtdblock3, sector 24
[ 3.831279] Buffer I/O error on device mtdblock3, logical block 3
[ 3.837753] List of all partitions:
[ 3.841420] 1f00 3072 mtdblock0 (driver?)
[ 3.846519] 1f01 2048 mtdblock1 (driver?)
[ 3.851681] 1f02 4096 mtdblock2 (driver?)
[ 3.856769] 1f03 40960 mtdblock3 (driver?)
[ 3.861912] 1f04 8192 mtdblock4 (driver?)
[ 3.866999] 1f05 7168 mtdblock5 (driver?)
[ 3.872120] No filesystem could mount root, tried: cramfs
[ 3.877650] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)
[ 3.886049] Backtrace:
[ 3.888523] Function entered at [<c002e518>] from [<c02d4da4>]
[ 3.894404] r7:00008001 r6:c2813000 r5:c00244e0 r4:c036eb60
[ 3.900156] Function entered at [<c02d4d8c>] from [<c02d4e10>]
[ 3.906003] Function entered at [<c02d4da8>] from [<c0008f8c>]
[ 3.911879] r3:00000000 r2:00000020 r1:c2825f60 r0:c02f6495
[ 3.917591] Function entered at [<c0008d28>] from [<c0009038>]
[ 3.923468] Function entered at [<c0008fe4>] from [<c00091b0>]
[ 3.929313] r5:c0024498 r4:c036e3c8
[ 3.932953] Function entered at [<c0009050>] from [<c00084b4>]
[ 3.938796] r5:c0023c7c r4:c036e378
[ 3.942432] Function entered at [<c00083a4>] from [<c00433cc>]
[ 3.948273] r5:c00083a4 r4:00000000
