MMC卡,读写错误,该怎么解决??

pcl001

1.插入MMC卡,显示信息:
内核2.6.24 ,处理器 s3c2440
mmc0: new MMC card at address 0001
mmcblk0: mmc0:0001        509568KiB
mmcblk0: p1

2.挂载MMC卡:
mount -t vfat /dev/mmcblk0p1 /mnt


3.操作两下,出现如下错误
FAT: Filesystem panic (dev mmcblk0p1)
    fat_get_cluster: invalid cluster chain (i_pos 0)
    File system has been set read-only
ls: .FAT: Filesystem panic (dev mmcblk0p1)
    fat_get_cluster: invalid cluster chain (i_pos 0)
/icon: Input/output error
ls: ./jpg: Input/output error


请教折腾过的大侠,原因何在?

pcl001

重新格式化后,就能正常工作那!