How to fix AH00051: child pid XXXX exit signal Segmentation fault (11)

I had a problem with my Apache from last few day’s. The problem was something like that

[core:notice] [pid 4491] AH00051: child pid 4911 exit signal Segmentation fault (11), possible coredump in /etc/apache2

None any applications was running in my Apache server. I got stuck by it and I tried a lot to fix that problem. Finally I fixed the shit. Actually the main problem is in php5-xcache. 

If you got that types of problem then simply remove php5-xcache from your system. To remove php5-xcache type

apt-get --purge remove php5-xcache

in your terminal. And then restart your apache server. Hope your problem will solve.