急急急！！！corenoticepid 21229AH00052child pid 21276 exit signal Segmentation fault11

如题，服务器环境是centos 7 + apache 2.4+php 5.6+redis 3，请问下这个是咋个回事呢？在var/logo/error_log里面报错，网站配置指向的错误文件里面没有报错的内容。
访问网站时，打不开。


The connection was reset

The connection to the server was reset while the page was loading.

    The site could be temporarily unavailable or too busy. Try again in a few moments.
    If you are unable to load any pages, check your computer’s network connection.
    If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.