如何在嵌入式系统上调试内核。

I've got a problem with one of the serial ports on an embedded development. /dev/ttyS0, /dev/ttyS2, and /dev/ttyS3 all work fine with no problems. But in some cases accessing /dev/ttyS1 throws the following two 'oops' messages.I've got a problem with one of the serial ports