#34216 [NEW]: Segfault with autoload

From: sebastian@php.net Operating system: Linux PHP version: 5.1.0RC1 PHP Bug Type: SPL related Bug description: Segfault with autoload Description: ------------ I am experiencing a segfault with spl_autoload in the PHP_5_1 branch with the upcoming PHPUnit 2.3.0. The nature of PHPUnit's complexity makes it almost impossible for me to come up with a simple, reproducing script (I already invested hours into this, to no avail so far). It is weird that the segfault only occurs in one out of two common code paths of PHPUnit's TextUI test runner. Furthermore, small code changes (see below) seem to make the problem go away: Reproduce code: --------------- Segfault: function PHPUnit2_Util_Classloader($className) { print "Loading $className.\n"; if (strpos($className, 'PHPUnit2_') !== FALSE) { @include(str_replace('_', '/', $className) . '.php'); } } spl_autoload_register('PHPUnit2_Util_Classloader'); Segfault: function PHPUnit2_Util_Classloader($className) { $bt = debug_backtrace(); print "Loading $className.\n"; if (strpos($className, 'PHPUnit2_') !== FALSE) { @include(str_replace('_', '/', $className) . '.php'); } } spl_autoload_register('PHPUnit2_Util_Classloader'); No Segfault: function PHPUnit2_Util_Classloader($className) { $bt = debug_backtrace(); print_r($bt[1]); print "Loading $className.\n"; if (strpos($className, 'PHPUnit2_') !== FALSE) { @include(str_replace('_', '/', $className) . '.php'); } } spl_autoload_register('PHPUnit2_Util_Classloader'); Actual result: -------------- Below are the links to the results of GDB and Valgrind. Interestingly, when run through GDB it segfaults, when run through Valgrind it does not segfault. GDB: http://www.sebastian-bergmann.de/stuff/phpunit2-gdb.txt Valgrind: http://www.sebastian-bergmann.de/stuff/phpunit2-valgrind.txt -- Edit bug report at http://bugs.php.net/?id=34216&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34216&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=34216&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=34216&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=34216&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=34216&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=34216&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=34216&r=needscript Try newer version: http://bugs.php.net/fix.php?id=34216&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=34216&r=support Expected behavior: http://bugs.php.net/fix.php?id=34216&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=34216&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=34216&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=34216&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34216&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=34216&r=dst IIS Stability: http://bugs.php.net/fix.php?id=34216&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=34216&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=34216&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=34216&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=34216&r=mysqlcfg