//报错打印
blk_update_request:I/O error ...... op 0x1:(WRITE) flag 0x4800 phys_seg 45 prio class 0
Buffer I/O error on device mmcblk1p1,logocal block 665802
//磁盘坏道检测badblocks
badblocks -s -v -o /root/bb.log /dev/sda 将结果保存到bb.log
badblocks -wsv -b 4096 -c 1024 /dev/sdc2
//文件系统检测fsck
