Bug #11990 Updated: defined constants getting corrupted

ID: 11990 User updated by: blalor@insight.com Reported By: blalor@insight.com Old Status: Status: Feedback Bug Type: Scripting Engine problem Operating System: RedHat Linux 6.2 PHP Version: 4.0.5 New Comment: Well, I haven't succeeded yet in reproducing the corrupted define, but I have managed to repeatably kill PHP with a 200002 line script generated by the following shell script: echo "<?php" define="this is a very long define, indeed! asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf asdf" count=0 while [ $count -lt 100000 ]; do echo "define(\"DEF_${count}\", \"$define\");" echo "if(DEF_${count} != \"$define\") { print(\"bad\"); }" count=$(($count + 1)) done echo "?>" I redirected that to a file and ran php through gdb. here's the resulting stack trace: (gdb) run Starting program: /home/blalor/redhat/BUILD/php-4.0.6/php_standalone ../test.php Program received signal SIGSEGV, Segmentation fault. 0x812770b in execute (op_array=0x81dc6c4) at ./zend_execute.c:1639 (gdb) bt #0 0x812770b in execute (op_array=0x81dc6c4) at ./zend_execute.c:1639 #1 0x80ee58b in zend_execute_scripts (type=8, file_count=3) at zend.c:752 #2 0x80635a1 in php_execute_script (primary_file=0xbffff554) at main.c:1206 #3 0x80615c9 in main (argc=2, argv=0xbffff5b4) at cgi_main.c:718 [snip] (gdb) print valptr->value $1 = {lval = 136194132, dval = 1.067726779661273e-313, str = { val = 0x81e2854 "DEF_0", len = 5}, ht = 0x81e2854, obj = {ce = 0x81e2854, properties = 0x5}} Note that it appears that PHP is trying to access the data for DEF_0 at zend_execute.c:1639. Note that I did this with php 4.0.6, not 4.0.5. *Some* kind of problem still exists there... Previous Comments: ------------------------------------------------------------------------ [2001-07-10 17:43:05] blalor@insight.com Configure options: ./configure --prefix=/usr --with-config-file-path=/etc --with-apxs=/usr/sbin/apxs --with-exec-dir=/usr/bin --disable-magic-quotes --enable-track-vars --enable-wddx --without-mysql --with-oci8=/home/oracle/product/8.0.5 --with-esoob=/usr/local/easysoft/oob/client --enable-sockets --disable-pear --with-xml --enable-inline-optimization Having difficulty reproducing bug; it is very intermittent... ------------------------------------------------------------------------ [2001-07-09 19:51:36] sniper@php.net Would it be possible to test this same script with PHP 4.0.6? I don't remember anyone reporting anything like this before and I have never experienced anything like this myself. Also, if you could create a short bug complete script which could be used to reproduce this, it would be a lot easier to debug this issue. And what was your configure line used to configure PHP ? --Jani ------------------------------------------------------------------------ [2001-07-09 18:13:11] blalor@insight.com We're seeing severe data corruption problems with defines. For example, the following snippet is from a PHP script that uses defined constants to build up a filename. The resulting variable contains junk data. no exist :ieldp/cðÃ<Äclasssupport/getproductlist.php Warning: Failed opening 'ield' for inclusion (include_path='.:/u/php:/u/htdocs') in /u/php/corelib/sp/procedure.php on line 57 no exist :ieldp/cðÃ<Äclasssupport/getfullproduct.php Warning: Failed opening 'ield' for inclusion (include_path='.:/u/php:/u/htdocs') in /u/php/corelib/sp/procedure.php on line 57 PHP doesn't seem to crash. ------------------------------------------------------------------------ ATTENTION! Do NOT reply to this email! To reply, use the web interface found at http://bugs.php.net/?id=11990&edit=1