Failed to start The PHP FastCGI Process Manager


Suppose that you use PHP-fpm on a linux server like CentOS, suddenly, PHP don’t work. You check PHP-fpm status then see:

[root@tutorialspots ~]# service php-fpm status -l
Redirecting to /bin/systemctl status  -l php-fpm.service
‚óŹ php-fpm.service - The PHP FastCGI Process Manager
   Loaded: loaded (/usr/lib/systemd/system/php-fpm.service; enabled; vendor preset: disabled)
   Active: failed (Result: signal) since Thu 2019-11-21 03:16:01 CST; 54s ago
  Process: 12535 ExecStart=/usr/sbin/php-fpm --nodaemonize (code=killed, signal=SEGV)
 Main PID: 12535 (code=killed, signal=SEGV)

Nov 21 03:16:01 www.tutorialspots.com systemd[1]: Starting The PHP FastCGI Process Manager...
Nov 21 03:16:01 www.tutorialspots.com systemd[1]: php-fpm.service: main process exited, code=killed, status=11/SEGV
Nov 21 03:16:01 www.tutorialspots.com systemd[1]: Failed to start The PHP FastCGI Process Manager.
Nov 21 03:16:01 www.tutorialspots.com systemd[1]: Unit php-fpm.service entered failed state.
Nov 21 03:16:01 www.tutorialspots.com systemd[1]: php-fpm.service failed.

You try to restart PHP-fpm but unsuccessfully:

[root@tutorialspots ~]# service php-fpm restart
Redirecting to /bin/systemctl restart php-fpm.service
Job for php-fpm.service failed because a fatal signal was delivered to the control process. See "systemctl status php-fpm.service" and "journalctl -xe" for details.

Check:

journalctl -xe

You see some rows like:

Jan 19 8:23:48 localhost polkitd[493]: Registered Authentication Agent for unix-process:5739:174943

How to fix this error:
Step 1: Check selinux enforcing mode:

[root@tutorialspots ~]# getenforce
Disabled

Step 2: enable selinux enforcing:
You can enable selinux enforcing by edit file /etc/sysconfig/selinux

vi /etc/sysconfig/selinux
SELINUX=permissive

selinux permissive

Step 3: reboot your server

Done!

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