How to fix Apache Server child pid 637 exit signal Segmentation fault (11), possible coredump in /etc/apache2 Issue
I am facing apache server issue. I have check apache server logs and seems likes its go in infinate loop. error log continuously display below errors.
Environement
Ubantu : 18.10
Apache:Apache/2.4.34
PHP 7.2.1
[Fri Mar 15 04:39:52.384115 2019] [core:notice] [pid 30896] AH00051: child pid 1413 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:52.384174 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1413
[Fri Mar 15 04:39:53.385026 2019] [core:notice] [pid 30896] AH00051: child pid 1416 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:53.385106 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1416
[Fri Mar 15 04:39:53.385122 2019] [core:notice] [pid 30896] AH00051: child pid 1417 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:53.385126 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1417
[Fri Mar 15 04:39:53.385137 2019] [core:notice] [pid 30896] AH00051: child pid 1418 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:53.385141 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1418
[Fri Mar 15 04:39:53.385152 2019] [core:notice] [pid 30896] AH00051: child pid 1419 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:53.385156 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1419
[Fri Mar 15 04:39:55.390520 2019] [core:notice] [pid 30896] AH00051: child pid 1426 exit signal Segmentation fault (11), possible coredump in /etc/apache2
[Fri Mar 15 04:39:55.390821 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1426
When I restart apache server Site is working.
Anyone please suggest solution to fix this issue?
Thanks
2 Replies
rgerke
Linode Staff
Hey there,
From looking at the data you provided, it appears that you are seeing Segmentation Fault errors. Since this is related to Apache, it could indicate a possible memory issue with your web server.
To tune your Apache's configuration settings, you can use a tool called Apachebuddy - I have a link to it for you here:
Also, I found a Stack Overflow article that addresses directly the errors that you're seeing, which might be able to help you out:
child pid XXXX exit signal Segmentation fault (11)” in apache error.log
I also want to include one of our own docs that may be useful in this situation when it comes to tuning Apache:
Did you look at the core dump and find out what caused it? See:
Intuition tells me that PHP is at fault but that's just a guess on my part. The latest version of PHP 7.2 is 7.2.9? You might try upgrading to that.
FWIW, these errors
[Fri Mar 15 04:39:53.385141 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1418
[Fri Mar 15 04:39:53.385156 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1419
[Fri Mar 15 04:39:55.390821 2019] [core:error] [pid 30896] AH00546: no record of generation 0 of exiting child 1426
are generated because child processes 1418, 1419 and 1426 are now missing and no one told the process that keeps track of children about it.
-- sw