Bug #68652 [NEW]: segmentation fault in destructor

From: guoxiao08 at gmail dot com Operating system: OSX PHP version: 5.6.4 Package: Scripting Engine problem Bug Type: Bug Bug description:segmentation fault in destructor Description: ------------ Segmentation fault when two classes call each other in destructors. Test script: --------------- <?php class Foo { private static $instance; public static function getInstance() { if (isset(self::$instance)) { return self::$instance; } return self::$instance = new self(); } public function __destruct() { Bar::getInstance(); } } class Bar { private static $instance; public static function getInstance() { if (isset(self::$instance)) { return self::$instance; } return self::$instance = new self(); } public function __destruct() { Foo::getInstance(); } } $foo = new Foo(); Expected result: ---------------- Nothing happend Actual result: -------------- segmentation fault lldb backtrace: * thread #1: tid = 0x6abacb, 0x000000010025c130 php`zend_update_class_constants + 287, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x15) * frame #0: 0x000000010025c130 php`zend_update_class_constants + 287 frame #1: 0x000000010025c3f2 php`_object_and_properties_init + 98 frame #2: 0x000000010025c45f php`_object_init_ex + 11 frame #3: 0x0000000100296ed9 php`ZEND_NEW_SPEC_HANDLER + 135 frame #4: 0x0000000100280a44 php`execute_ex + 79 frame #5: 0x000000010024b229 php`dtrace_execute_ex + 226 frame #6: 0x00000001002c264d php`zend_do_fcall_common_helper_SPEC + 1223 frame #7: 0x0000000100280a44 php`execute_ex + 79 frame #8: 0x000000010024b229 php`dtrace_execute_ex + 226 frame #9: 0x000000010024cb31 php`zend_call_function + 2268 frame #10: 0x000000010026d188 php`zend_call_method + 588 frame #11: 0x000000010027a489 php`zend_objects_destroy_object + 412 frame #12: 0x000000010027fb2e php`zend_objects_store_del_ref_by_handle_ex + 504 frame #13: 0x000000010027f8fe php`zend_objects_store_del_ref + 23 frame #14: 0x000000010024b54a php`_zval_ptr_dtor + 66 frame #15: 0x000000010024f40b php`zend_cleanup_user_class_data + 139 frame #16: 0x0000000100265818 php`zend_hash_reverse_apply + 80 frame #17: 0x000000010024b80e php`shutdown_executor + 400 frame #18: 0x00000001002596a5 php`zend_deactivate + 103 frame #19: 0x0000000100200d4f php`php_request_shutdown + 497 frame #20: 0x00000001002e1c7d php`do_cli + 4942 frame #21: 0x00000001002e07ba php`main + 1448 frame #22: 0x00007fff8fbf05c9 libdyld.dylib`start + 1 frame #23: 0x00007fff8fbf05c9 libdyld.dylib`start + 1 -- Edit bug report at https://bugs.php.net/bug.php?id=68652&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68652&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68652&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68652&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68652&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68652&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68652&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68652&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68652&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68652&r=support Expected behavior: https://bugs.php.net/fix.php?id=68652&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68652&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68652&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68652&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68652&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68652&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68652&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68652&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68652&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68652&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68652&r=mysqlcfg