Olá Bruno,
Não tive esse erro, mas um outro de falha de segmento de memória:
Receito que seja algum memory leak de código.
Você teve algum retorno da sua postagem depois?
[Sun Jan 07 03:42:02.159290 2018] [auth_digest:notice] [pid 26853] AH01757: generating secret for digest authentication ...
[Sun Jan 07 03:42:02.161484 2018] [lbmethod_heartbeat:notice] [pid 26853] AH02282: No slotmem from mod_heartmonitor
[Sun Jan 07 03:42:02.227799 2018] [mpm_prefork:notice] [pid 26853] AH00163: Apache/2.4.6 (Red Hat Enterprise Linux) PHP/5.6.32 configured -- resuming normal operations
[Sun Jan 07 03:42:02.227829 2018] [core:notice] [pid 26853] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Sun Jan 07 05:19:19.430683 2018] [core:notice] [pid 26853] AH00052: child pid 38253 exit signal Segmentation fault (11)
[Sun Jan 07 05:19:19.430801 2018] [core:notice] [pid 26853] AH00052: child pid 40184 exit signal Segmentation fault (11)
[Sun Jan 07 10:03:26.220928 2018] [core:notice] [pid 26853] AH00052: child pid 54655 exit signal Segmentation fault (11)
[Sun Jan 07 11:03:58.491043 2018] [core:notice] [pid 26853] AH00052: child pid 57600 exit signal Segmentation fault (11)
[Sun Jan 07 12:19:08.865558 2018] [core:notice] [pid 26853] AH00052: child pid 61351 exit signal Segmentation fault (11)
[Sun Jan 07 13:06:05.416142 2018] [core:notice] [pid 26853] AH00052: child pid 63715 exit signal Segmentation fault (11)
[Sun Jan 07 13:46:07.263410 2018] [core:notice] [pid 26853] AH00052: child pid 63849 exit signal Segmentation fault (11)
[Sun Jan 07 13:47:34.407416 2018] [core:notice] [pid 26853] AH00052: child pid 598 exit signal Segmentation fault (11)
[Sun Jan 07 13:47:54.453409 2018] [core:notice] [pid 26853] AH00052: child pid 509 exit signal Segmentation fault (11)
[Sun Jan 07 13:48:04.489778 2018] [core:notice] [pid 26853] AH00052: child pid 63580 exit signal Segmentation fault (11)
[Sun Jan 07 13:48:09.510829 2018] [core:notice] [pid 26853] AH00052: child pid 646 exit signal Segmentation fault (11)
[Sun Jan 07 13:48:45.608858 2018] [core:notice] [pid 26853] AH00052: child pid 707 exit signal Segmentation fault (11)
top - 11:26:29 up 20 days, 23:32, 1 user, load average: 0,00, 0,04, 0,05
Tasks: 152 total, 1 running, 150 sleeping, 0 stopped, 1 zombie
%Cpu(s): 0,0 us, 1,5 sy, 0,0 ni, 98,5 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st
KiB Mem : 3873824 total, 574576 free, 334468 used, 2964780 buff/cache
KiB Swap: 1048572 total, 1046652 free, 1920 used. 3241748 avail Mem
service httpd restart
Tasks: 126 total, 2 running, 124 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0,5 us, 0,1 sy, 0,0 ni, 99,4 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st
KiB Mem : 3873824 total, 740600 free, 160320 used, 2972904 buff/cache
KiB Swap: 1048572 total, 1046652 free, 1920 used. 3422268 avail Mem