#37066 [Bgs]: segfault in zend_assign_to_variable while debugging

ID: 37066 User updated by: it at absp dot alcatel dot be Reported By: it at absp dot alcatel dot be Status: Bogus Bug Type: Apache2 related Operating System: Linux 2.6.16-1.2080_FC5 PHP Version: 5.1.2 New Comment: Placed this bug on advice of the author debugger. [quote] thanks for the back trace. It's clear that it's Zend crashed: #0 zend_assign_to_variable() in /usr/src/debug/php-5.1.2/Zend/zend_execute.c execution reached this point from Apache and DBG is not involved anyways. I'd recommend you submit bug in http://bugs.php.net/ They will be happy to see backtrace too. Seems im in the ping pong game. Thanks anyway Previous Comments: ------------------------------------------------------------------------ [2006-04-13 09:10:33] johannes@php.net Do not file bugs when you have Zend extensions (zend_extension=) loaded. Examples are Zend Optimizer, Zend Debugger, Turck MM Cache, APC, Xdebug and ionCube loader. These extensions often modify engine behavior which is not related to PHP itself. Please report this to the authors of the Debugger. ------------------------------------------------------------------------ [2006-04-13 09:03:38] it at absp dot alcatel dot be Description: ------------ The httpd child crashes whilst stepping through php code using DBG as debug module. As soon as the first variable assignment is reached, it segfaults (11) DBG php debugger, version 2.16.20, Copyright 2001, 2005 Dmitri Dmitrienko, http://www.nusphere.com/dbg Version 2.16.20 Linked as a shared library. Dbg security enabled. Profiler compiled, enabled Target PHP version 5.1.2 Server API Apache 2.0 Handler Extensions API 220051025 Modules API 20050922 PHP API 20041225 './configure' '--disable-debug' '--with-pic' '--with-config-file-scan-dir=/usr/local/etc/php.d' '--disable-rpath' '--without-pear' '--with-bz2' '--with-curl' '--with-freetype-dir=/usr' '--with-png-dir=/usr' '--enable-gd-native-ttf' '--without-gdbm' '--with-gettext' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr' '--with-openssl' '--with-png' '--with-pspell' '--with-expat-dir=/usr' '--with-pcre-regex=/usr' '--with-zlib' '--with-layout=GNU' '--enable-dom=shared' '--enable-exif' '--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--enable-sysvsem' '--enable-sysvshm' '--enable-sysvmsg' '--enable-track-vars' '--enable-trans-sid' '--enable-yp' '--enable-wddx' '--with-kerberos' '--enable-ucd-snmp-hack' '--with-unixODBC=shared,/usr' '--enable-memory-limit' '--enable-shmop' '--enable-calendar' '--enable-dbx' '--enable-dio' '--with-mime-magic=/usr/local/apache2/conf/magic' '--without-sqlite' '--with-libxml-dir=/usr' '--with-xml' '--enable-force-cgi-redirect' '--enable-pcntl' '--with-imap=shared' '--with-imap-ssl' '--enable-mbstring=shared' '--enable-mbstr-enc-trans' '--enable-mbregex' '--with-ncurses=shared' '--with-gd=shared' '--enable-bcmath=shared' '--enable-dba=shared' '--with-db4=/usr' '--with-xmlrpc=shared' '--with-ldap=shared' '--with-mysql=shared,/usr' '--with-mysqli=shared,/usr/bin/mysql_config' '--with-dom-xslt=/usr' '--with-dom-exslt=/usr}' '--with-pgsql=shared' '--with-snmp=shared,/usr' '--enable-soap=shared' '--with-xsl=shared,/usr' '--enable-xmlreader=shared' '--enable-xmlwriter=shared' '--enable-fastcgi' '--enable-pdo=shared' '--with-pdo-odbc=shared,unixODBC,/usr' '--with-pdo-mysql=shared,/usr' '--with-pdo-pgsql=shared,/usr' '--with-pdo-sqlite=shared,/usr' '--with-apxs2=/usr/local/apache2/bin/apxs' Reproduce code: --------------- <?php print("this works"); echo "and this"; $error="segfault when here"; ?> Expected result: ---------------- Stepping till end. Actual result: -------------- Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1208199504 (LWP 13969)] 0x01188435 in zend_assign_to_variable (result=0x909bcd0, op1=0x909bce4, op2=0x909bcf8, value=0x909bcfc, type=1, Ts=0xbf9e1bf0) at /data/misc/download/Download_spool/php-5.1.2/Zend/zend_execute.c:269 269 zval ***ptr = &CV_OF(node->u.var); ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=37066&edit=1