全志A20 上的linux 系统 断电（20秒）上电（100秒）出现 read only file system？

全志A20 linux +QT 出现 Read-only file system，如何解决？
<23:00:59.558>mount /dev/nandd return 0
<23:00:59.870>[    2.774139] EXT4-fs error (device nandd): ext4_mb_generate_buddy:741: group 0, 6975 clusters in bitmap, 1 in gd
<23:00:59.870>[    2.785502] Aborting journal on device nandd-8.
<23:00:59.870>[    2.791035] EXT4-fs (nandd): Remounting filesystem read-only
<23:00:59.886>[    2.797645] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.901>[    2.807469] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.917>[    2.817189] EXT4-fs error (device nandd) in ext4_ext_remove_space:2741: Journal has aborted
<23:00:59.917>[    2.826603] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.932>[    2.836296] EXT4-fs error (device nandd) in ext4_orphan_del:2113: Journal has aborted
<23:00:59.932>[    2.845103] EXT4-fs error (device nandd) in ext4_reserve_inode_write:4385: Journal has aborted
<23:00:59.979>[    2.855091] EXT4-fs error (device nandd): mb_free_blocks:1301: group 0, block 19124:freeing already freed block (bit 19124)
<23:01:01.524>Profile start...
<23:01:01.524>autorun.sh...
/opt/qt_arma10/qt4/start/getIP.sh: line 2: can't create /opt/qt_arma10/qt4/start/getIp.txt: Read-only file system