前两天一个FB的机器启动不了了，看它提示的错误，在man 8 crash里面有这样的解释：
These panic messages are among those that may be produced when
filesystem inconsistencies are detected. The problem generally
results from a failure to repair damaged filesystems after a
crash, hardware failures, or other condition that should not nor-
mally occur. A filesystem check will normally correct the prob-
lem.
进到单用户模式下fsck -y了一下就ok了。
