[php-src] Issue #10015: zend_signal_handler_defer crashes on apache shutdown

Issue: https://github.com/php/php-src/issues/10015 Author: psumbera ### Description Core dump is generated during Apache shutdown. Seems to be the same incarnation of: https://bugs.php.net/bug.php?id=78619 This time on Solaris: ``` 7fc096c1fac61 libphp8.0.so`zend_signal_handler_defer+0x50(1, 7fc096c1fbb00, 7fc096c1fb820, 7fc097d02db70, 0, 7fc09776180a0) 7fc096c1fad11 libc.so.1`__sighndlr+0xc(1, 7fc096c1fbb00, 7fc096c1fb820, 7fc097741d424, 0, 7fc097c9247c0) 7fc096c1fadc1 libc.so.1`call_user_handler+0x400(fffffff7, 7fc096c1fbb00, 8, 7fc097d02da40, 1, fffffff7) 7fc096c1faeb1 libc.so.1`sigacthandler+0xd0(1, 7fc096c1fbb00, 7fc096c1fb820, 34, 1, 7fc097c9247c0) 7fc096c1fb401 libc.so.1`_portfs+8(8, e4aa7e2068, 34, 7fc096c1fbd70, 0, 0) 7fc096c1fb4c1 libapr-1.so.0.7.0`impl_pollset_poll+0x284(e4aa7e1f58, ffffffffffffffff, 7fc096c1fbea4, 7fc096c1fbe80, e4aa7e1fb0, e4aa7e2068) 7fc096c1fb591 mod_mpm_event.so`listener_thread+0x6b8(3, 7fc097bf00100, 7fc097be175fc, 7fc097be16000, 4e2e, 1117f) 7fc096c1fb6f1 libc.so.1`_lwp_start(0, 0, 0, 0, 0, 0) ``` ### PHP Version PHP 8.0 ### Operating System Solaris 11.4