#22831 [NEW]: Segfault when calling a function recursively

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