From: ja at morrdusk dot net
Operating system: Mac OS X 10.2.4
PHP version: 4.3.2RC1
PHP Bug Type: Reproducible crash
Bug description: Segfault when calling a function recursively
I expected an out of memory error or something similar but instead I got a
segmentation fault when executing the following script:
<?php
function foo()
{
foo();
}
foo();
?>
$ php foo.php
zsh: 20003 segmentation fault php foo.php
Gdb output, the backtrace was huge so I only included the first 10 lines:
Program received signal EXC_BAD_ACCESS, Could not access memory.
0x900042f0 in free_list_add_ptr ()
(gdb) bt
#0 0x900042f0 in free_list_add_ptr ()
#1 0x90004a44 in malloc_zone_malloc ()
#2 0x000c1294 in _emalloc (size=40) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_alloc.c:158
#3 0x000e0314 in execute (op_array=0x44225c) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1627
#4 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#5 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#6 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#7 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#8 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#9 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
#10 0x000e0404 in execute (op_array=0x476c20) at
/Volumes/Data/apps/php/php-4.3.2RC1/Zend/zend_execute.c:1650
--
Edit bug report at http://bugs.php.net/?id=22831&edit=1
--
Try a CVS snapshot: http://bugs.php.net/fix.php?id=22831&r=trysnapshot
Fixed in CVS: http://bugs.php.net/fix.php?id=22831&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=22831&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=22831&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=22831&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=22831&r=support
Expected behavior: http://bugs.php.net/fix.php?id=22831&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=22831&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=22831&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=22831&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=22831&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=22831&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=22831&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=22831&r=gnused
