openresty[16290]: segfault at 0 ip (null) sp 00007fff403faf98 error 14 in nginx[400000+1da000]

[dayongi]

Centos Version:

[root@tvvmjt0128 ~]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core) 

OpenResty Infos:

[egwnode@tvvmjt0128 coredump]$ openresty -V
nginx version: openresty/1.19.9.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/openresty/nginx --with-debug --with-cc-opt='-DNGX_LUA_USE_ASSERT -DNGX_LUA_ABORT_AT_PANIC -O2' --add-module=../ngx_devel_kit-0.3.1 --add-module=../echo-nginx-module-0.62 --add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2 --add-module=../set-misc-nginx-module-0.32 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.08 --add-module=../srcache-nginx-module-0.32 --add-module=../ngx_lua-0.10.20 --add-module=../ngx_lua_upstream-0.07 --add-module=../headers-more-nginx-module-0.33 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.15 --add-module=../rds-csv-nginx-module-0.09 --add-module=../ngx_stream_lua-0.0.10 --with-ld-opt=-Wl,-rpath,/usr/local/openresty/luajit/lib --with-pcre-jit --with-stream --with-stream_ssl_module --with-stream_ssl_preread_module --with-http_v2_module --without-mail_pop3_module --without-mail_imap_module --without-mail_smtp_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_auth_request_module --with-http_secure_link_module --with-http_random_index_module --with-http_gzip_static_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-threads --with-stream --with-stream_ssl_preread_module --with-http_ssl_module --with-http_gzip_static_module --add-module=/data/software/openresty-1.19.9.1/ngx_http_consistent_hash-master --with-stream

Nginx Config:

upstream vpn-backends {
    consistent_hash $proxy_add_x_forwarded_for;
    server 10.x.x.2:8081;
    server 10.x.x.1:8081;
}

server {
    listen 80;
    location /vpn/ {
        proxy_http_version 1.1;
        proxy_set_header  Connection      "";
        proxy_set_header  X-Real-IP       $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host            $http_host;
        proxy_cookie_path   /buap /vpn;
        proxy_pass https://vpn-backends/;
  }
}

When I complete the relevant configuration to access, Nginx has the following error：

2022/03/30 00:11:36 [alert] 16288#16288: worker process 16290 exited on signal 11 (core dumped)

When I use dmesg | grep nginx, I get the following error:

[29426336.444125] openresty[9722]: segfault at 0 ip           (null) sp 00007fff5ba57498 error 14 in nginx[400000+1da000]
[29426363.556545] openresty[9723]: segfault at 0 ip           (null) sp 00007fff5ba57498 error 14 in nginx[400000+1da000]
[29426423.957289] openresty[9829]: segfault at 0 ip           (null) sp 00007fff5ba574c8 error 14 in nginx[400000+1da000]
[29426882.473798] openresty[12564]: segfault at 0 ip           (null) sp 00007ffde606af78 error 14 in nginx[400000+1da000]
[29426884.310026] openresty[12563]: segfault at 0 ip           (null) sp 00007ffde606af78 error 14 in nginx[400000+1da000]
[29426893.608951] openresty[12666]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29426894.408055] openresty[12679]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29426902.102552] openresty[12716]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29426908.099369] openresty[12719]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29426908.422015] openresty[12751]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29426908.827020] openresty[12776]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29427293.224662] openresty[12781]: segfault at 0 ip           (null) sp 00007ffde606afa8 error 14 in nginx[400000+1da000]
[29427632.713972] openresty[16290]: segfault at 0 ip           (null) sp 00007fff403faf98 error 14 in nginx[400000+1da000]

I don't know why this is? Do you have any good solution? thanks.

[ms1995]

Observed similar issues when proxying HTTPS backends. Resorted to HTTP backends in the end.