Bug #52958 :: Segfault in PDO_OCI on cleanup after running a long testsuite.

Please refer to https://bugs.php.net/bug.php?id=52958 for more information.

P.S. May someone help to contribute the php-level test case for this issue?

Sorry that since this bug will ALWAYS hit during installation when develop with Drupal 7.x pdo_oci driver, but very hard to reproduce its trigger with simple test cases...

Hope someone can give a hand for it ;-)