使用openresty 1.11.2.1 連續進行ssl handshake出現Segmentation fault

petertom51

用script每秒送GET request 到nginx，會出現Segmentation fault。

這是我使用的bash script: send_get_request.sh

#!/bin/bash
COUNTER=500
while [ $COUNTER -gt 1 ]
do
        sleep 1
        echo COUNTER $COUNTER
        let COUNTER-=1
        curl -X "GET" "https://10.162.243.141:8080/test" -k
end

結果：

$ ./send_get_request.sh

COUNTER 500

COUNTER 499

COUNTER 498

COUNTER 497

COUNTER 496

COUNTER 495

COUNTER 494

COUNTER 493

COUNTER 492

COUNTER 491

COUNTER 490

COUNTER 489

COUNTER 488

COUNTER 487

COUNTER 486

COUNTER 485

COUNTER 484

COUNTER 483

COUNTER 482

COUNTER 481

COUNTER 480

COUNTER 479

COUNTER 478

COUNTER 477

COUNTER 476

COUNTER 475

COUNTER 474

COUNTER 473

COUNTER 472

COUNTER 471

COUNTER 470

COUNTER 469

curl: (56) SSL read: error:00000000:lib(0):func(0):reason(0), errno 104

error.log顯示

2016/11/15 06:59:48 [alert] 22816#0: worker process 22817 exited on signal 11 (core dumped)
2016/11/15 06:59:48 [alert] 22816#0: shared memory zone "SSL" was locked by 22817

nginx.conf

user  root root;
worker_processes  1;

working_directory /tmp/cores/;
worker_rlimit_core 500M;

error_log  /tmp/nginx_error.log ;

pid        /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/json;

    keepalive_timeout  65;

    server {
        listen       8080 ssl;
        server_name  localhost;

        ssl_certificate      /etc/certs/server.crt;
        ssl_certificate_key  /etc/certs/server.key;

        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;

        ssl_protocols  TLSv1.1 TLSv1.2;
        ssl_ciphers  AES128:AES256:!EXPORT:!SSLv2:!aNULL:!LOW:!MEDIUM:@STRENGTH;
        ssl_prefer_server_ciphers  on;

        server_tokens off;
        location /test {
                return 200;
        }
    }
}

nginx build資訊

# ./nginx -v
nginx version: openresty/1.11.2.1

# ./nginx -Vnginx version: openresty/1.11.2.1
built with OpenSSL 1.0.2a 19 Mar 2015
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 -O0 -g' --add-module=../ngx_devel_kit-0.3.0 --add-module=../echo-nginx-module-0.60 --add-module=../xss-nginx-module-0.05 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.31 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.06 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.6 --add-module=../ngx_lua_upstream-0.06 --add-module=../headers-more-nginx-module-0.31 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.17 --add-module=../redis2-nginx-module-0.13 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.14 --add-module=../rds-csv-nginx-module-0.07 --with-ld-opt=-Wl,-rpath,/usr/local/openresty/luajit/lib --crossbuild=Linux:x86_64 --with-endian=big --with-int=4 --with-long=4 --with-long-long=8 --with-ptr-size=4 --with-sig-atomic-t=4 --with-size-t=4 --with-off-t=4 --with-time-t=4 --with-sys-nerr=132 --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/nginx/access.log --error-log-path=/var/nginx/error.log --http-client-body-temp-path=/tmp/nginx/client_body_temp --http-proxy-temp-path=/tmp/nginx/proxy_temp --http-fastcgi-temp-path=/tmp/nginx/fastcgi_temp --http-uwsgi-temp-path=/tmp/nginx/uwsgi_temp --http-scgi-temp-path=/tmp/nginx/scgi_temp --with-cc='x86_64-poky-linux-gcc -m64 -fPIC' --with-ipv6 --with-http_ssl_module

core file 顯示

# gdb ~/nginx core.nginx.22817
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
Copyright (C) 2014 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-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /root/nginx...done.

warning: exec file is newer than core file.
[New LWP 22817]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `nginx: worker process           '.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536
2536    src/event/ngx_event_openssl.c: No such file or directory.
(gdb) bt
#0  0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536
#1  0x00007f2050ea7e80 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0
#2  0x00007f2050e85389 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0
#3  0x00000000004627cd in ngx_ssl_handshake (c=0x7f20520396d0) at src/event/ngx_event_openssl.c:1191
#4  0x0000000000462ed3 in ngx_ssl_handshake_handler (ev=0x7f20520735d0) at src/event/ngx_event_openssl.c:1367
#5  0x000000000045fb84 in ngx_epoll_process_events (cycle=0x7f2052007330, timer=59994, flags=1) at src/event/modules/ngx_epoll_module.c:900
#6  0x000000000044eaaf in ngx_process_events_and_timers (cycle=0x7f2052007330) at src/event/ngx_event.c:242
#7  0x000000000045d2c8 in ngx_worker_process_cycle (cycle=0x7f2052007330, data="" at src/os/unix/ngx_process_cycle.c:753
#8  0x000000000045969e in ngx_spawn_process (cycle=0x7f2052007330, proc=0x45d1bd <ngx_worker_process_cycle>, data="" name=0x587b73 "pening logs", respawn=-3)
    at src/os/unix/ngx_process.c:198
#9  0x000000000045bef3 in ngx_start_worker_processes (cycle=0x7f2052007330, n=1, type=-3) at src/os/unix/ngx_process_cycle.c:358
#10 0x000000000045b490 in ngx_master_process_cycle (cycle=0x7f2052007330) at src/os/unix/ngx_process_cycle.c:130
#11 0x000000000041ab13 in main (argc=3, argv=0x7ffef558b748) at src/core/nginx.c:367

不過在 src/event/ngx_event_openssl.c:2536

sess_id->node.key = hash;

看起來不會有問題阿＠＠

而且前面30次都沒有問題，偏偏都是走到第31次才會出現

當我嘗試在GDB印出sess_id, 他顯示

(gdb) p *sess_id
Cannot access memory at address 0x7f204f8e4000

我有嘗試改變 ssl_session_timeout 5s

這樣的設定反而可以跑完send_get_request.sh。

對於整個openresty的內容還沒抓到重點

請問是否可以給我一點繼續往下走的方向呢？

謝謝

petertom51

Update:

把ssl_session_cache 從 shared:SSL:1m 改成 builtin
我就可以把跑完這隻script了

這是代表某些資料造成share_memory有問題？

On Tuesday, November 15, 2016 at 3:40:33 PM UTC+8, Tom Weng wrote:

用script每秒送GET request 到nginx，會出現Segmentation fault。

這是我使用的bash script: send_get_request.sh
#!/bin/bash COUNTER=500 while [ $COUNTER -gt 1 ] do sleep 1 echo COUNTER $COUNTER let COUNTER-=1 curl -X "GET" "https://10.162.243.141:8080/test" -k end

結果：
$ ./send_get_request.sh
COUNTER 500
COUNTER 499
COUNTER 498
COUNTER 497
COUNTER 496
COUNTER 495
COUNTER 494
COUNTER 493
COUNTER 492
COUNTER 491
COUNTER 490
COUNTER 489
COUNTER 488
COUNTER 487
COUNTER 486
COUNTER 485
COUNTER 484
COUNTER 483
COUNTER 482
COUNTER 481
COUNTER 480
COUNTER 479
COUNTER 478
COUNTER 477
COUNTER 476
COUNTER 475
COUNTER 474
COUNTER 473
COUNTER 472
COUNTER 471
COUNTER 470
COUNTER 469
curl: (56) SSL read: error:00000000:lib(0):func(0):reason(0), errno 104

error.log顯示
2016/11/15 06:59:48 [alert] 22816#0: worker process 22817 exited on signal 11 (core dumped) 2016/11/15 06:59:48 [alert] 22816#0: shared memory zone "SSL" was locked by 22817

nginx.conf
user root root; worker_processes 1; working_directory /tmp/cores/; worker_rlimit_core 500M; error_log /tmp/nginx_error.log ; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/json; keepalive_timeout 65; server { listen 8080 ssl; server_name localhost; ssl_certificate /etc/certs/server.crt; ssl_certificate_key /etc/certs/server.key; ssl_session_cache shared:SSL:1m; ssl_session_timeout 5m; ssl_protocols TLSv1.1 TLSv1.2; ssl_ciphers AES128:AES256:!EXPORT:!SSLv2:!aNULL:!LOW:!MEDIUM:@STRENGTH; ssl_prefer_server_ciphers on; server_tokens off; location /test { return 200; } } }

nginx build資訊
# ./nginx -v nginx version: openresty/1.11.2.1 # ./nginx -Vnginx version: openresty/1.11.2.1 built with OpenSSL 1.0.2a 19 Mar 2015 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 -O0 -g' --add-module=../ngx_devel_kit-0.3.0 --add-module=../echo-nginx-module-0.60 --add-module=../xss-nginx-module-0.05 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.31 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.06 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.6 --add-module=../ngx_lua_upstream-0.06 --add-module=../headers-more-nginx-module-0.31 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.17 --add-module=../redis2-nginx-module-0.13 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.14 --add-module=../rds-csv-nginx-module-0.07 --with-ld-opt=-Wl,-rpath,/usr/local/openresty/luajit/lib --crossbuild=Linux:x86_64 --with-endian=big --with-int=4 --with-long=4 --with-long-long=8 --with-ptr-size=4 --with-sig-atomic-t=4 --with-size-t=4 --with-off-t=4 --with-time-t=4 --with-sys-nerr=132 --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/nginx/access.log --error-log-path=/var/nginx/error.log --http-client-body-temp-path=/tmp/nginx/client_body_temp --http-proxy-temp-path=/tmp/nginx/proxy_temp --http-fastcgi-temp-path=/tmp/nginx/fastcgi_temp --http-uwsgi-temp-path=/tmp/nginx/uwsgi_temp --http-scgi-temp-path=/tmp/nginx/scgi_temp --with-cc='x86_64-poky-linux-gcc -m64 -fPIC' --with-ipv6 --with-http_ssl_module

core file 顯示
# gdb ~/nginx core.nginx.22817 GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 Copyright (C) 2014 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /root/nginx...done. warning: exec file is newer than core file. [New LWP 22817] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `nginx: worker process '. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536 2536 src/event/ngx_event_openssl.c: No such file or directory. (gdb) bt #0 0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536 #1 0x00007f2050ea7e80 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 #2 0x00007f2050e85389 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 #3 0x00000000004627cd in ngx_ssl_handshake (c=0x7f20520396d0) at src/event/ngx_event_openssl.c:1191 #4 0x0000000000462ed3 in ngx_ssl_handshake_handler (ev=0x7f20520735d0) at src/event/ngx_event_openssl.c:1367 #5 0x000000000045fb84 in ngx_epoll_process_events (cycle=0x7f2052007330, timer=59994, flags=1) at src/event/modules/ngx_epoll_module.c:900 #6 0x000000000044eaaf in ngx_process_events_and_timers (cycle=0x7f2052007330) at src/event/ngx_event.c:242 #7 0x000000000045d2c8 in ngx_worker_process_cycle (cycle=0x7f2052007330, data="" at src/os/unix/ngx_process_cycle.c:753 #8 0x000000000045969e in ngx_spawn_process (cycle=0x7f2052007330, proc=0x45d1bd <ngx_worker_process_cycle>, data="" name=0x587b73 "pening logs", respawn=-3) at src/os/unix/ngx_process.c:198 #9 0x000000000045bef3 in ngx_start_worker_processes (cycle=0x7f2052007330, n=1, type=-3) at src/os/unix/ngx_process_cycle.c:358 #10 0x000000000045b490 in ngx_master_process_cycle (cycle=0x7f2052007330) at src/os/unix/ngx_process_cycle.c:130 #11 0x000000000041ab13 in main (argc=3, argv=0x7ffef558b748) at src/core/nginx.c:367

不過在 src/event/ngx_event_openssl.c:2536
sess_id->node.key = hash;
看起來不會有問題阿＠＠
而且前面30次都沒有問題，偏偏都是走到第31次才會出現

當我嘗試在GDB印出sess_id, 他顯示
(gdb) p *sess_id Cannot access memory at address 0x7f204f8e4000

我有嘗試改變 ssl_session_timeout 5s
這樣的設定反而可以跑完send_get_request.sh。
對於整個openresty的內容還沒抓到重點
請問是否可以給我一點繼續往下走的方向呢？

謝謝

petertom51

Updated:

今天發現我一直在懷疑的檔案在nginx有更新了

主要是這次commit

他有改寫了ngx_slab_alloc_locked()

然後我的測試就跑的過了

謝謝大家

On Tuesday, November 15, 2016 at 5:30:31 PM UTC+8, Tom Weng wrote:

Update:
把ssl_session_cache 從 shared:SSL:1m 改成 builtin
我就可以把跑完這隻script了
這是代表某些資料造成share_memory有問題？

On Tuesday, November 15, 2016 at 3:40:33 PM UTC+8, Tom Weng wrote:
用script每秒送GET request 到nginx，會出現Segmentation fault。

這是我使用的bash script: send_get_request.sh
#!/bin/bash COUNTER=500 while [ $COUNTER -gt 1 ] do sleep 1 echo COUNTER $COUNTER let COUNTER-=1 curl -X "GET" "https://10.162.243.141:8080/test" -k end

結果：
$ ./send_get_request.sh
COUNTER 500
COUNTER 499
COUNTER 498
COUNTER 497
COUNTER 496
COUNTER 495
COUNTER 494
COUNTER 493
COUNTER 492
COUNTER 491
COUNTER 490
COUNTER 489
COUNTER 488
COUNTER 487
COUNTER 486
COUNTER 485
COUNTER 484
COUNTER 483
COUNTER 482
COUNTER 481
COUNTER 480
COUNTER 479
COUNTER 478
COUNTER 477
COUNTER 476
COUNTER 475
COUNTER 474
COUNTER 473
COUNTER 472
COUNTER 471
COUNTER 470
COUNTER 469
curl: (56) SSL read: error:00000000:lib(0):func(0):reason(0), errno 104

error.log顯示
2016/11/15 06:59:48 [alert] 22816#0: worker process 22817 exited on signal 11 (core dumped) 2016/11/15 06:59:48 [alert] 22816#0: shared memory zone "SSL" was locked by 22817

nginx.conf
user root root; worker_processes 1; working_directory /tmp/cores/; worker_rlimit_core 500M; error_log /tmp/nginx_error.log ; pid /var/run/nginx.pid; events { worker_connections 1024; } http { include mime.types; default_type application/json; keepalive_timeout 65; server { listen 8080 ssl; server_name localhost; ssl_certificate /etc/certs/server.crt; ssl_certificate_key /etc/certs/server.key; ssl_session_cache shared:SSL:1m; ssl_session_timeout 5m; ssl_protocols TLSv1.1 TLSv1.2; ssl_ciphers AES128:AES256:!EXPORT:!SSLv2:!aNULL:!LOW:!MEDIUM:@STRENGTH; ssl_prefer_server_ciphers on; server_tokens off; location /test { return 200; } } }

nginx build資訊
# ./nginx -v nginx version: openresty/1.11.2.1 # ./nginx -Vnginx version: openresty/1.11.2.1 built with OpenSSL 1.0.2a 19 Mar 2015 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 -O0 -g' --add-module=../ngx_devel_kit-0.3.0 --add-module=../echo-nginx-module-0.60 --add-module=../xss-nginx-module-0.05 --add-module=../ngx_coolkit-0.2rc3 --add-module=../set-misc-nginx-module-0.31 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.06 --add-module=../srcache-nginx-module-0.31 --add-module=../ngx_lua-0.10.6 --add-module=../ngx_lua_upstream-0.06 --add-module=../headers-more-nginx-module-0.31 --add-module=../array-var-nginx-module-0.05 --add-module=../memc-nginx-module-0.17 --add-module=../redis2-nginx-module-0.13 --add-module=../redis-nginx-module-0.3.7 --add-module=../rds-json-nginx-module-0.14 --add-module=../rds-csv-nginx-module-0.07 --with-ld-opt=-Wl,-rpath,/usr/local/openresty/luajit/lib --crossbuild=Linux:x86_64 --with-endian=big --with-int=4 --with-long=4 --with-long-long=8 --with-ptr-size=4 --with-sig-atomic-t=4 --with-size-t=4 --with-off-t=4 --with-time-t=4 --with-sys-nerr=132 --conf-path=/etc/nginx/nginx.conf --http-log-path=/var/nginx/access.log --error-log-path=/var/nginx/error.log --http-client-body-temp-path=/tmp/nginx/client_body_temp --http-proxy-temp-path=/tmp/nginx/proxy_temp --http-fastcgi-temp-path=/tmp/nginx/fastcgi_temp --http-uwsgi-temp-path=/tmp/nginx/uwsgi_temp --http-scgi-temp-path=/tmp/nginx/scgi_temp --with-cc='x86_64-poky-linux-gcc -m64 -fPIC' --with-ipv6 --with-http_ssl_module

core file 顯示
# gdb ~/nginx core.nginx.22817 GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 Copyright (C) 2014 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-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /root/nginx...done. warning: exec file is newer than core file. [New LWP 22817] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `nginx: worker process '. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536 2536 src/event/ngx_event_openssl.c: No such file or directory. (gdb) bt #0 0x0000000000465668 in ngx_ssl_new_session (ssl_conn=0x7f20520b0be0, sess=0x7f20520b6920) at src/event/ngx_event_openssl.c:2536 #1 0x00007f2050ea7e80 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 #2 0x00007f2050e85389 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 #3 0x00000000004627cd in ngx_ssl_handshake (c=0x7f20520396d0) at src/event/ngx_event_openssl.c:1191 #4 0x0000000000462ed3 in ngx_ssl_handshake_handler (ev=0x7f20520735d0) at src/event/ngx_event_openssl.c:1367 #5 0x000000000045fb84 in ngx_epoll_process_events (cycle=0x7f2052007330, timer=59994, flags=1) at src/event/modules/ngx_epoll_module.c:900 #6 0x000000000044eaaf in ngx_process_events_and_timers (cycle=0x7f2052007330) at src/event/ngx_event.c:242 #7 0x000000000045d2c8 in ngx_worker_process_cycle (cycle=0x7f2052007330, data="" at src/os/unix/ngx_process_cycle.c:753 #8 0x000000000045969e in ngx_spawn_process (cycle=0x7f2052007330, proc=0x45d1bd <ngx_worker_process_cycle>, data="" name=0x587b73 "pening logs", respawn=-3) at src/os/unix/ngx_process.c:198 #9 0x000000000045bef3 in ngx_start_worker_processes (cycle=0x7f2052007330, n=1, type=-3) at src/os/unix/ngx_process_cycle.c:358 #10 0x000000000045b490 in ngx_master_process_cycle (cycle=0x7f2052007330) at src/os/unix/ngx_process_cycle.c:130 #11 0x000000000041ab13 in main (argc=3, argv=0x7ffef558b748) at src/core/nginx.c:367

不過在 src/event/ngx_event_openssl.c:2536
sess_id->node.key = hash;
看起來不會有問題阿＠＠
而且前面30次都沒有問題，偏偏都是走到第31次才會出現

當我嘗試在GDB印出sess_id, 他顯示
(gdb) p *sess_id Cannot access memory at address 0x7f204f8e4000

我有嘗試改變 ssl_session_timeout 5s
這樣的設定反而可以跑完send_get_request.sh。
對於整個openresty的內容還沒抓到重點
請問是否可以給我一點繼續往下走的方向呢？

謝謝