Bug #55704 [Opn->Fbk]: php_flag engine off crashes apache

Edit report at https://bugs.php.net/bug.php?id=55704&edit=1 ID: 55704 Updated by: laruence@php.net Reported by: j dot amend at gmail dot com Summary: php_flag engine off crashes apache -Status: Open +Status: Feedback Type: Bug Package: Apache2 related Operating System: Gentoo linux PHP Version: 5.4SVN-2011-09-19 (snap) Block user comment: N Private report: N New Comment: this is so weird, since in the frame #0, the arkey is an invalid pointer, but it shoud be exactlly same as the name in #1, since I can not reproduce this in my environ, could you do me a favor and try to find out the reason for how could this var be damaged? you can try to use gdb httpd, make a break point "b real_value_hnd", then exam it step by step, thanks Previous Comments: ------------------------------------------------------------------------ [2011-09-20 13:43:29] j dot amend at gmail dot com I just tried it with php5.4-201109192030 on my Mac (Apache/2.2.17, Mac OS X 10.6.7) with the same result. #0 0x00000001012e9e72 in _zend_hash_add_or_update (ht=0x10087d118, arKey=0x18 <Address 0x18 out of bounds>, nKeyLength=7, pData=0x7fff5fbff350, nDataSize=24, pDest=0x0, flag=1) at /Users/Grayling/php5.4-201109192030/Zend/zend_hash.c:268 #1 0x000000010139a944 in real_value_hnd (cmd=0x7fff5fbff820, dummy=0x10087d118, name=0x100890f58 "engine", value=<value temporarily unavailable, due to optimizations>, status=2) at /Users/Grayling/php5.4-201109192030/sapi/apache2handler/apache_config.c:73 #2 0x000000010139a9dd in real_flag_hnd (cmd=0x7fff5fbff820, dummy=0x10087d118, arg1=0x100890f58 "engine", arg2=0x100890f60 "off", status=2) at /Users/Grayling/php5.4-201109192030/sapi/apache2handler/apache_config.c:98 #3 0x0000000100003595 in invoke_cmd () #4 0x00000001000047d8 in ap_walk_config_sub () #5 0x000000010000488b in ap_walk_config () #6 0x0000000100005ddd in ap_process_config_tree () #7 0x000000010000a26a in main () ------------------------------------------------------------------------ [2011-09-16 08:30:13] laruence@php.net Please try using this snapshot: http://snaps.php.net/php5.4-latest.tar.gz For Windows: http://windows.php.net/snapshots/ I can not reproduce this in my environ, plz test with the svn-snap plz, thanks ------------------------------------------------------------------------ [2011-09-15 20:48:23] j dot amend at gmail dot com Description: ------------ Since PHP 5.4 alpha 2 (alpha 1 still worked), apache crashes with a segmentation fault if "php_flag engine off" is anywhere in my apache configuration files. Test script: --------------- httpd.conf: ... php_flag engine off ... Expected result: ---------------- PHP is disabled in whatever context "php_flag engine off" is used. Actual result: -------------- Apache crashes with a segmentation fault, even for a configtest (apache2 -t). Program received signal SIGSEGV, Segmentation fault. 0x00007ffff04ddff9 in _zend_hash_add_or_update () from /usr/lib64/apache2/modules/libphp5.so ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55704&edit=1