Nginx Core dump(corrupted double-linked list)

[Maxim Dounin]

Hello!

On Tue, Dec 27, 2016 at 07:11:00AM -0500, heijiu wrote:

> gdb /opt/nginx/sbin/nginx /tmp/core.29382 
> GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-80.el7
> Copyright (C) 2013 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "x86_64-redhat-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /opt/nginx/sbin/nginx...done.
> [New LWP 29382]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Core was generated by `nginx: worker process'.
> Program terminated with signal 6, Aborted.

[...]

What "nginx -V" shows?
What's in the configuration?

Hint: the very first step is to make sure the problem is not 
introduced by a 3rd party module.

-- 
Maxim Dounin
http://nginx.org/