From: daniel dot goss at t-systems dot com
Operating system: RedHat 8.0, 7.3
PHP version: 4.3.2
PHP Bug Type: Reproducible crash
Bug description: A stack overflow in a php-script leads to a segmentation fault.
Description:
------------
I know this bug has been reported as "Bug #18909: Stack overflow error"
but I think this should be fixed and not treated as bogus like in bug
#18909.
Scripting engines should _never_ segfault!
A stack overflow in a recursive php-function leads the php-engine to a
segmentation fault.
There is a second issue that could be in associated with this one. If a
function is called very often (sometimes recoursive - depth not greater
than 20) php crashes too. We've not investigated this issue further enough
to write a script to reproduce this behaviour.
Reproduce code:
---------------
<?
function MyTest($A, $B, $C, $D, $E, $F, $G)
{
for ($k=0; $k<100; $k++)
{
echo "|".$A++."|<BR>";
flush();
MyTest($A, "", "", "", "", "", "");
}
}
MyTest(0,"","","","","","");
?>
Expected result:
----------------
A php error complaining about a stack overflow.
Actual result:
--------------
[notice] child pid 29029 exit signal Segmentation fault (11)
--
Edit bug report at http://bugs.php.net/?id=24578&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=24578&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=24578&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=24578&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=24578&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=24578&r=needtrace
Try newer version: http://bugs.php.net/fix.php?id=24578&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=24578&r=support
Expected behavior: http://bugs.php.net/fix.php?id=24578&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=24578&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=24578&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=24578&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24578&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=24578&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=24578&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=24578&r=gnused
