#25410 [NEW]: strange crash & freeze bug when reassigning global var to method's return

From: xuefer at 21cn dot com Operating system: win PHP version: 4.3.3 PHP Bug Type: Scripting Engine problem Bug description: strange crash & freeze bug when reassigning global var to method's return Description: ------------ the 1st code make apache crash, and the 2nd make apache freeze, taking full cpu usage notice that the "exit" statement is important noting will happend when "exit" is removed only class methods is affected, not function Reproduce code: --------------- crash: <?php class A { function &getInstance() { if (empty($GLOBALS['a'])) { $GLOBALS['a'] = &new A(); } return $GLOBALS['a']; } } $a = &A::getInstance(); exit; ?> freeze: <?php class A { function &getInstance() { return $GLOBALS['a']; } } $a = &A::getInstance(); exit; ?> -- Edit bug report at http://bugs.php.net/?id=25410&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25410&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25410&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=25410&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=25410&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=25410&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=25410&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=25410&r=support Expected behavior: http://bugs.php.net/fix.php?id=25410&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=25410&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=25410&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=25410&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25410&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=25410&r=dst IIS Stability: http://bugs.php.net/fix.php?id=25410&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=25410&r=gnused