管理提醒： 本帖被 qq2440 从 2440硬件交流区 移动到本区(2011-08-07)
手头一U2440（128M）的板子，经常在运行的时候，通过串口终端会打印如下信息
s3c-sdi s3c2440-sdi: powered down.
s3c-sdi s3c2440-sdi: running at 0kHz (requested: 0kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: running at 398kHz (requested: 400kHz).
s3c-sdi s3c2440-sdi: powered down.
但系统运行无其他异常，偶尔出现几次当核心板断电之后，核心板无法启动
串口终端循环打印如下信息
[root@(none) /]#
[root@(none) /]#
can't open /dev/tty3: No such file or directory
can't open /dev/tty2: No such file or directory
can't open /dev/tty4: No such file or directory
can't open /dev/tty3: No such file or directory
can't open /dev/tty2: No such file or directory
can't open /dev/tty4: No such file or directory
can't open /dev/tty3: No such file or directory
can't open /dev/tty2: No such file or directory
can't open /dev/tty4: No such file or directory
can't open /dev/tty3: No such file or directory
can't open /dev/tty2: No such file or directory
can't open /dev/tty4: No such file or directory
can't open /dev/tty3: No such file or directory
can't open /dev/tty2: No such file or directory
can't open /dev/tty4: No such file or directory
can't open /dev/tty3: No such file or directory
这几天连续出现好几次这种现象了，重烧文件系统之后可以好转，请教版主这是个例，还是有什么bug，因为我们采用U2440做产品开发的。如果不稳定，那后期会很惨
