# Nginx 0.8.55 && 1.1.0 core dump if switch from http to https with HUP **URL:** \ **Category:** NGINX\ **Created:** [August 2, 2011, 10:36am UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199 "2011-08-02T10:36:40Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\ **Post date:** [August 2, 2011, 10:36am UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199/1 "2011-08-02T10:36:40Z")
Hi, Nginx crash if switch http to https, steps to reproduce are : 1. setup a normal config of http 2. start nginx 3. edit config file and add: ssl on; ssl\_certificate /path/to/root.cert; ssl\_certificate\_key /path/to//root.key; ssl\_client\_certificate /path/to//root.ca.cert; 4. kill -HUP pid\_of\_nginx 5. nginx crashed. If I use the following cfg to start nginx http : ssl off; ssl\_certificate /path/to/root.cert; ssl\_certificate\_key /path/to//root.key; ssl\_client\_certificate /path/to//root.ca.cert; after nginx started, then changed the config to : ssl on; ssl\_certificate /path/to/root.cert; ssl\_certificate\_key /path/to//root.key; ssl\_client\_certificate /path/to//root.ca.cert; kill -HUP pid\_of\_nginx, everything is OK. nginx NOT crashed. secone-dev:/secone/webap/conf# /secone/webap/sbin/nginx -V nginx version: nginx/0.8.55 built by gcc 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) TLS SNI support disabled configure arguments: --prefix=/secone/webap --pid-path=/secone/var –with-cpu-opt=pentium4 --with-pcre --with-ipv6 –without-http\_autoindex\_module --without-http\_ssi\_module –without-http\_empty\_gif\_module --without-http\_memcached\_module –without-http\_charset\_module --without-http\_split\_clients\_module –with-http\_stub\_status\_module --with-http\_ssl\_module –with-http\_realip\_module --with-http\_sub\_module –with-http\_geoip\_module (gdb) bt #0 ngx\_slab\_alloc (pool=0x0, size=40) at src/core/ngx\_slab.c:145 #1 0x080683c6 in ngx\_ssl\_session\_cache\_init (shm\_zone=0x81037e4, data=0x0) at src/event/ngx\_event\_openssl.c:1518 #2 0x08058d14 in ngx\_init\_cycle (old\_cycle=0x80c8738) at src/core/ngx\_cycle.c:454 #3 0x0806662f in ngx\_master\_process\_cycle (cycle=0x80c8738) at src/os/unix/ngx\_process\_cycle.c:240 #4 0x0804d151 in main (argc=3, argv=0xbfaf09b4) at src/core/nginx.c:401 (gdb) frame 1 #1 0x080683c6 in ngx\_ssl\_session\_cache\_init (shm\_zone=0x81037e4, data=0x0) at src/event/ngx\_event\_openssl.c:1518 1518 cache = ngx\_slab\_alloc(shpool, sizeof(ngx\_ssl\_session\_cache\_t)); (gdb) l 1513 return NGX\_OK; 1514 } 1515 1516 shpool = (ngx\_slab\_pool\_t \*) shm\_zone-\>shm.addr; 1517 1518 cache = ngx\_slab\_alloc(shpool, sizeof(ngx\_ssl\_session\_cache\_t)); 1519 if (cache == NULL) { 1520 return NGX\_ERROR; 1521 } 1522 (gdb) info locals shpool = (ngx\_slab\_pool\_t \*) 0x0 (gdb) info args shm\_zone = (ngx\_shm\_zone\_t \*) 0x81037e4 data = (void \*) 0x0 It seems nginx 1.1.0 also has this issue. secone-dev:/secone/webap/conf# /secone/webap/sbin/nginx -V nginx: nginx version: nginx/1.1.0 nginx: built by gcc 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) nginx: TLS SNI support disabled nginx: configure arguments: --prefix=/secone/webap –pid-path=/secone/var --with-cpu-opt=pentium4 --with-pcre --with-ipv6 –without-http\_autoindex\_module --without-http\_ssi\_module –without-http\_empty\_gif\_module --without-http\_memcached\_module –without-http\_charset\_module --without-http\_split\_clients\_module –with-http\_stub\_status\_module --with-http\_ssl\_module –with-http\_realip\_module --with-http\_sub\_module –with-http\_geoip\_module ---
**Author:** ![Delta\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f9ae1b/32.png) [@Delta\_Y](https://www.ruby-forum.com/u/Delta_Y)\ **Post date:** [August 2, 2011, 2:41pm UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199/2 "2011-08-02T14:41:45Z")
Hello! On Tue, Aug 02, 2011 at 04:35:28PM +0800, Delta Y. wrote: > 1. kill -HUP pid\_of\_nginx > 2. nginx crashed. Thank you for your report. Attached patch should fix this problem. Maxim D. ---
**Author:** ![Delta\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f9ae1b/32.png) [@Delta\_Y](https://www.ruby-forum.com/u/Delta_Y)\ **Post date:** [August 3, 2011, 7:26am UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199/3 "2011-08-03T07:26:40Z")
Thanks , after apply the patch, crash won’t happen again. 2011/8/2 Maxim D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![Delta\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f9ae1b/32.png) [@Delta\_Y](https://www.ruby-forum.com/u/Delta_Y)\ **Post date:** [August 4, 2011, 5:02am UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199/4 "2011-08-04T05:02:12Z")
Hi Igor, I apply your patch against svn trunk, it fix the crash. Thanks . 2011/8/3 Igor S. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): ---
**Author:** ![Delta\_Y](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/f9ae1b/32.png) [@Delta\_Y](https://www.ruby-forum.com/u/Delta_Y)\ **Post date:** [August 3, 2011, 5:47pm UTC](https://www.ruby-forum.com/t/nginx-0-8-55-1-1-0-core-dump-if-switch-from-http-to-https-with-hup/210199/5 "2011-08-03T17:47:09Z")
On Wed, Aug 03, 2011 at 01:26:04PM +0800, Delta Y. wrote: > Thanks , after apply the patch, crash won’t happen again. Could you test another attached patch ?