Bug #71977 [Com]: After opcache turned on to cause Segmentation fault

Edit report at https://bugs.php.net/bug.php?id=71977&edit=1 ID: 71977 Comment by: jsilver at doublesharp dot com Reported by: wangduo1122 at 163 dot com Summary: After opcache turned on to cause Segmentation fault Status: Open Type: Bug Package: opcache Operating System: Linux PHP Version: 7.0.5 Block user comment: N Private report: N New Comment: I was successfully running opcache for some time, but randomly this morning I started seeing the same behavior from php-fpm. Once these errors began appearing in the log Nginx would only return a 502 Bad Gateway error until php-fpm was restarted. Removing opcache corrected the issue, please let me know if there is other debugging I can do. OS: CentOS 7 PHP: 7.0.5 /var/log/php-fpm/www-error.log -------------------------------- 26-Apr-2016 18:26:31] NOTICE: [pool www] child 17467 started [26-Apr-2016 18:26:34] WARNING: [pool www] child 17344 exited on signal 11 (SIGSEGV) after 205.748769 seconds from start [26-Apr-2016 18:26:34] NOTICE: [pool www] child 17473 started [26-Apr-2016 18:26:34] WARNING: [pool www] child 17315 exited on signal 11 (SIGSEGV) after 258.979294 seconds from start [26-Apr-2016 18:26:34] NOTICE: [pool www] child 17474 started [26-Apr-2016 18:26:35] WARNING: [pool www] child 17345 exited on signal 11 (SIGSEGV) after 207.569738 seconds from start [26-Apr-2016 18:26:35] NOTICE: [pool www] child 17476 started [26-Apr-2016 18:26:38] WARNING: [pool www] child 17317 exited on signal 11 (SIGSEGV) after 263.001353 seconds from start [26-Apr-2016 18:26:38] NOTICE: [pool www] child 17478 started [26-Apr-2016 18:26:38] WARNING: [pool www] child 17337 exited on signal 11 (SIGSEGV) after 211.347670 seconds from start [26-Apr-2016 18:26:38] NOTICE: [pool www] child 17480 started [26-Apr-2016 18:26:39] WARNING: [pool www] child 17356 exited on signal 11 (SIGSEGV) after 209.634259 seconds from start [26-Apr-2016 18:26:39] NOTICE: [pool www] child 17482 started [26-Apr-2016 18:26:41] WARNING: [pool www] child 17343 exited on signal 11 (SIGSEGV) after 213.523122 seconds from start [26-Apr-2016 18:26:41] NOTICE: [pool www] child 17489 started [26-Apr-2016 18:26:42] WARNING: [pool www] child 17351 exited on signal 11 (SIGSEGV) after 213.560209 seconds from start /var/log/messages -------------------------------- Apr 26 21:26:31 web01 kernel: traps: php-fpm[17316] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:34 web01 kernel: traps: php-fpm[17344] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:34 web01 kernel: traps: php-fpm[17315] general protection ip:7f83cb4b6feb sp:7ffe89bdf7f0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:35 web01 kernel: traps: php-fpm[17345] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:38 web01 kernel: traps: php-fpm[17317] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:38 web01 kernel: traps: php-fpm[17337] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:39 web01 kernel: traps: php-fpm[17356] general protection ip:7f83cb4b6feb sp:7ffe89bdfdb0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:41 web01 kernel: traps: php-fpm[17343] general protection ip:7f83cb4b6feb sp:7ffe89bdf7f0 error:0 in opcache.so[7f83cb4a3000+2c000] Apr 26 21:26:42 web01 kernel: traps: php-fpm[17351] general protection ip:7f83cb4b6feb sp:7ffe89bdf7f0 error:0 in opcache.so[7f83cb4a3000+2c000] ``` Previous Comments: ------------------------------------------------------------------------ [2016-04-08 11:45:17] wangduo1122 at 163 dot com If you turn off opcache, we would not have this problem. ------------------------------------------------------------------------ [2016-04-07 10:07:34] wangduo1122 at 163 dot com The original function is accomplished , I do not want to modify the original function . Test the "a/d", this will not be the original parameters to be modified. Are there any other ways to solve this problem ? ------------------------------------------------------------------------ [2016-04-07 06:17:01] nikic@php.net You must a) declare the parameter as being by-reference in arginfo and b) separate the argument by using "a/d" instead of "ad". Does doing these two things fix the issue? ------------------------------------------------------------------------ [2016-04-06 13:48:26] wangduo1122 at 163 dot com Description: ------------ When turned on opcache, the first call to extension function normally , the second appeared Segmentation fault. Close opcache is normal.Through debug and found add_assoc_stringl,add_assoc_long caused Segmentation fault when turned on opcache Test script: --------------- ZEND_FUNCTION( L5ApiGetRoute ){ double d_time_out = 0; std::string err_msg; zval *za_qos_req; if ( ZEND_NUM_ARGS() == 2 ){ if ( zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ad",&za_qos_req,&d_time_out) == FAILURE ){ RETURN_LONG(-2); }else{ WRONG_PARAM_COUNT; RETURN_LONG(-3); } php_var_dump(za_qos_req, 1); add_assoc_stringl( za_qos_req, "hostIp", "10.175.90.28", 12); add_assoc_long( za_qos_req, "hostPort", 80 ); } PHP code: <?php $l5_req = array( 'modId' => 64100225, 'cmdId' => 65536 ); $l5_time_out = 0.2; $ret = L5ApiGetRoute($l5_req, $l5_time_out); print_r($l5_req); $l5_reqx = array( 'modId' => 64000833, 'key' => 3 ); $ret = L5ApiGetRoute($l5_reqx, $l5_time_out); print_r($l5_reqx); ?> PHP.INI(opcache config) zend_extension=opcache.so opcache.memory_consumption=128 opcache.interned_strings_buffer=8 opcache.max_accelerated_files=4000 opcache.revalidate_freq=10 opcache.fast_shutdown=1 opcache.enable_cli=1 Actual result: -------------- [root@cweb_sports_api_new_10 ~/cl5/php/src]# /usr/local/qqwebsrv/php7/bin/php test.php array(2) { ["modId"]=> int(64100225) ["cmdId"]=> int(65536) } Array ( [modId] => 64100225 [cmdId] => 65536 [hostIp] => 10.175.90.28 [hostPort] => 80 ) array(2) {---------------------Get the correct parameters ["modId"]=> int(64000833) ["key"]=> int(3) } Array ( [modId] => 64000833 [key] => 3 [hostIp] => 10.175.90.28 [hostPort] => 80 ) [root@cweb_sports_api_new_10 ~/cl5/php/src]# /usr/local/qqwebsrv/php7/bin/php test.php array(2) { ["modId"]=> int(64100225) ["cmdId"]=> int(65536) } Array ( [modId] => 64100225 [cmdId] => 65536 [hostIp] => 10.175.90.28 [hostPort] => 80 ) array(32696) {----------------------Did not get to the parameter Segmentation fault (core dumped) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71977&edit=1