Bug #64720 [Com]: SegFault on zend_deactivate (php-fpm)

Edit report at https://bugs.php.net/bug.php?id=64720&edit=1 ID: 64720 Comment by: d dot ananyev at gmail dot com Reported by: d dot ananyev at gmail dot com Summary: SegFault on zend_deactivate (php-fpm) Status: Open Type: Bug Package: opcache Operating System: CentOS release 6.4 (Final) PHP Version: 5.4.14 Block user comment: N Private report: N New Comment: My opcache stats (screenshots) https://drive.google.com/folderview?id=0B4F2-uZsSusnLWF0a2ZrQ2REUmc&usp=sharing Previous Comments: ------------------------------------------------------------------------ [2013-04-26 10:44:25] d dot ananyev at gmail dot com Description: ------------ Every approximately 30 minutes i got segfaults in php-fpm Debuginfo gives me the following trace Core was generated by `php-fpm: pool www '. Program terminated with signal 11, Segmentation fault. #0 _zend_mm_free_int (heap=0x1c39330, p=0x23671b8) at /usr/build/php- 5.4.10/php-5.4.10/Zend/zend_alloc.c:2100 2100 if (ZEND_MM_IS_FREE_BLOCK(next_block)) { Missing separate debuginfos, use: debuginfo-install cairo-1.8.8-3.1.el6.x86_64 fftw-3.2.1-3.1.el6.x86_64 lcms-libs-1.19-1.el6.x86_64 libc-client-2007e- 11.el6.x86_64 libidn-1.18-2.el6.x86_64 libmcrypt-2.5.8-9.el6.x86_64 librabbitmq- 0.2-0.1.git2059570.el6.remi.x86_64 libtool-ltdl-2.2.6-15.5.el6.x86_64 sqlite- 3.6.20-1.el6.x86_64 xz-libs-4.999.9-0.3.beta.20091007git.el6.x86_64 (gdb) bt #0 _zend_mm_free_int (heap=0x1c39330, p=0x23671b8) at /usr/build/php- 5.4.10/php-5.4.10/Zend/zend_alloc.c:2100 #1 0x00000000007116d7 in _zval_dtor (zval_ptr=0x29076d8) at /usr/build/php- 5.4.10/php-5.4.10/Zend/zend_variables.h:35 #2 _zval_ptr_dtor (zval_ptr=0x29076d8) at /usr/build/php-5.4.10/php- 5.4.10/Zend/zend_execute_API.c:438 #3 0x00000000007163af in cleanup_user_class_data (pce=<value optimized out>) at /usr/build/php-5.4.10/php-5.4.10/Zend/zend_opcode.c:165 #4 zend_cleanup_user_class_data (pce=<value optimized out>) at /usr/build/php- 5.4.10/php-5.4.10/Zend/zend_opcode.c:198 #5 0x000000000072b944 in zend_hash_reverse_apply (ht=0x1c39c90, apply_func=0x716340 <zend_cleanup_user_class_data>) at /usr/build/php- 5.4.10/php-5.4.10/Zend/zend_hash.c:799 #6 0x0000000000714156 in shutdown_executor () at /usr/build/php-5.4.10/php- 5.4.10/Zend/zend_execute_API.c:289 #7 0x000000000071f412 in zend_deactivate () at /usr/build/php-5.4.10/php- 5.4.10/Zend/zend.c:938 #8 0x00000000006c2a3c in php_request_shutdown (dummy=<value optimized out>) at /usr/build/php-5.4.10/php-5.4.10/main/main.c:1790 #9 0x00000000007d0d49 in main (argc=<value optimized out>, argv=<value optimized out>) at /usr/build/php-5.4.10/php-5.4.10/sapi/fpm/fpm/fpm_main.c:1948 server runs ~ 100 req/sec it has 8Gb of ram and 120 fpm workers la = 0.5 Expected result: ---------------- dont segfault Actual result: -------------- [26-Apr-2013 14:30:19] WARNING: [pool www] child 15002 exited on signal 11 (SIGSEGV - core dumped) after 1613.465551 seconds from start [26-Apr-2013 14:30:19] NOTICE: [pool www] child 1423 started ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64720&edit=1