From: [EMAIL PROTECTED]
Operating system: Irrelevant
PHP version: Irrelevant
PHP Bug Type: Reproducible crash
Bug description: segfaults with recursive function calls
Description:
------------
PHP crashes after some time when recursive function calls are used
intensively.
Probably a "Wont Fix"? -> Bug #8471
Reproduce code:
---------------
<?php
function _r(){
echo round(memory_get_usage()/1024) . "k\n";
_r();
}
_r();
?>
Expected result:
----------------
endless loop, which outputs nearly similar memory usage as it would with
"while(true){ _r(); }" without recursion
Actual result:
--------------
increasing memory usage till segfault after a few seconds
Backtrace of PHP 5.0.0b2:
#0 0x408e5acb in __printf_fp () from /lib/libc.so.6
#1 0xbfe0105c in ?? ()
#2 0x408e2e85 in vfprintf () from /lib/libc.so.6
#3 0x408fb46b in vsprintf () from /lib/libc.so.6
#4 0x408e89dd in sprintf () from /lib/libc.so.6
#5 0x08236388 in zend_locale_sprintf_double (op=0x409c3ff4)
at /usr/local/src/php-5.0.0b2/Zend/zend_operators.c:1845
#6 0x082370fb in zend_make_printable_zval (expr=0x409c3ff4,
expr_copy=0x2,
use_copy=0x9) at /usr/local/src/php-5.0.0b2/Zend/zend.c:245
#7 0x08234ee8 in concat_function (result=0x9, op1=0x409c3ff4, op2=0x2)
at /usr/local/src/php-5.0.0b2/Zend/zend_operators.c:1083
#8 0x08252a11 in zend_concat_handler (execute_data=0x2,
op_array=0x83fad68)
at /usr/local/src/php-5.0.0b2/Zend/zend_execute.c:1361
#9 0x082524c5 in execute (op_array=0x83fad68)
at /usr/local/src/php-5.0.0b2/Zend/zend_execute.c:1271
#10 0x082555e0 in zend_do_fcall_common_helper (execute_data=0x9,
op_array=0x83fad68) at
/usr/local/src/php-5.0.0b2/Zend/zend_execute.c:2579
#11 0x082524c5 in execute (op_array=0x83fad68)
[............................................]
#10843 0x082524c5 in execute (op_array=0x83fad68)
at /usr/local/src/php-5.0.0b2/Zend/zend_execute.c:1271
#10844 0x082555e0 in zend_do_fcall_common_helper
(execute_data=0xbfffd930,
op_array=0x40a5ce4c) at
/usr/local/src/php-5.0.0b2/Zend/zend_execute.c:2579
#10845 0x082524c5 in execute (op_array=0x40a5ce4c)
at /usr/local/src/php-5.0.0b2/Zend/zend_execute.c:1271
#10846 0x08238355 in zend_execute_scripts (type=8, retval=0x0,
file_count=3)
at /usr/local/src/php-5.0.0b2/Zend/zend.c:1009
#10847 0x08206d9d in php_execute_script (primary_file=0xbffffce0)
at /usr/local/src/php-5.0.0b2/main/main.c:1622
#10848 0x082654a2 in main (argc=2, argv=0xbffffd64)
at /usr/local/src/php-5.0.0b2/sapi/cli/php_cli.c:910
--
Edit bug report at http://bugs.php.net/?id=26212&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26212&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26212&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=26212&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=26212&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=26212&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=26212&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=26212&r=support
Expected behavior: http://bugs.php.net/fix.php?id=26212&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=26212&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=26212&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=26212&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26212&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=26212&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=26212&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=26212&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=26212&r=float
