Wordpress installation prompts NGINX 502 Bad Gateway error solution

Today, I set up a WORDPRESS site in the newly installed Linode VPS. Who knows that there was an inexplicable 502 Bad Gateway error when step = 2.
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At the beginning of thought is the concurrency and memory problems, adjusted the php-fpm.ini, also re-compiled php. The problem persists. Okay. Check the Centos logs.
# Less/var/log/messages // view log files in the system.

The most recent errors are found in:

Jan 26 02:09:40 li631-178 kernel: php-cgi [2173]: segfault at 8048 ip route 7fe1_d9fe9c sp route 7fff37421c40 error 4 in libsqlite3.so. 0.8.6 [7fe1_d83000 + 8c000]

It seems to be a problem of memory overflow.
Solution:

# Mv/usr/lib64/libsqlite3.so. 0.8.6/usr/lib64/libsqlite3.so. 0.8.6.bak

// Rename the error file!
Restart the service and solve the problem!