Errors in bifs or pattern matching errors send automatic exit signals to the link set of the process where the error occured 在bif或者模式匹配中发生的错误将自动发送退出信号到该出错进程的链接进程集合。
4.
When a process crashes ( e . g . failure of a bif or a pattern match ) exit signals are sent to all processes to which the failing process is currently linked 当一个进程挂掉了（例如bif失败或者模式匹配失败） ，退出信号将发送给所有和该失效进程相关的其他进程。
