#40446 [NEW]: php.exe fails to start

From: a at b dot c dot de Operating system: Windows XP SP2 PHP version: 5.2.1 PHP Bug Type: Reproducible crash Bug description: php.exe fails to start Description: ------------ PHP 5.2.1 (manually downloaded, extracted and copied to working directory) fails to start either as a CLI or as an Apache module; Apache fails to start also (though this may be a side-effect of something else). Installation was through exactly the same installation process as earlier upgrades (e.g., 5.0.x => 5.1). php.ini is being parsed (one early attempt at the below reminded me to turn off a third-party extension with its "Failed Loading" message). Downgrading to 5.2.0 (through the same installation process) works successfully. Installing 5.2.1 side-by-side with 5.2.0 in another directory has the same result as below. Reproduce code: --------------- From the command line: c:\> php -v Expected result: ---------------- PHP 5.2.1 (cli) (built: Feb 7 2007 23:19:16) Copyright (c) 1997-2007 The PHP Group Zend Engine v2.2.0, Copyright (c) 1998-2006 Zend Technologies Actual result: -------------- Fatal error: Allowed memory size of 128 bytes exhausted (tried to allocate 8192 bytes) in Unknown on line 0 -- Edit bug report at http://bugs.php.net/?id=40446&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40446&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40446&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40446&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=40446&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=40446&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=40446&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=40446&r=needscript Try newer version: http://bugs.php.net/fix.php?id=40446&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=40446&r=support Expected behavior: http://bugs.php.net/fix.php?id=40446&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=40446&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=40446&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=40446&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40446&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=40446&r=dst IIS Stability: http://bugs.php.net/fix.php?id=40446&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=40446&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=40446&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=40446&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=40446&r=mysqlcfg