Confirmed in my xenial testing:
==> /var/log/apache2/error.log <== [Tue Jun 20 18:44:20.612899 2017] [core:notice] [pid 7038:tid 140431534086016] AH00051: child pid 7041 exit signal Segmentation fault (11), possible coredump in /etc/apache2
Confirmed in my xenial testing:
==> /var/log/ apache2/ error.log <==
[Tue Jun 20 18:44:20.612899 2017] [core:notice] [pid 7038:tid 140431534086016] AH00051: child pid 7041 exit signal Segmentation fault (11), possible coredump in /etc/apache2