[php-src] Issue #10026: Garbage collection stops after exception in SoapClient

Issue: https://github.com/php/php-src/issues/10026 Author: abienvenu ### Description The following code: ```php <?php class A { public $b; } class B { public $a; } function buildCycle() { $a = new A(); $b = new B(); $a->b = $b; $b->a = $a; } function failySoapCall() { try { new SoapClient('https://nowhere.inexistent.space/?WSDL'); } catch (Exception) { echo "Soap call failed\n"; } } function gc() { gc_collect_cycles(); echo "GC Runs: " . gc_status()['runs'] . "\n"; } buildCycle(); gc(); buildCycle(); gc(); buildCycle(); gc(); failySoapCall(); buildCycle(); gc(); buildCycle(); gc(); buildCycle(); gc(); ``` Resulted in this output: ``` GC Runs: 1 GC Runs: 2 GC Runs: 3 Soap call failed GC Runs: 3 GC Runs: 3 GC Runs: 3 ``` But I expected this output instead: ``` GC Runs: 1 GC Runs: 2 GC Runs: 3 Soap call failed GC Runs: 4 GC Runs: 5 GC Runs: 6 ``` The SOAP exception apparently stops the garbage collector. I experienced this problem with a large, long running process. Its memory usage is intensive but stable. Until it encounters a SOAP exception: its memory usage skyrockets, and gc_status() reports that no more gc run is done. ### PHP Version PHP 8.1.13 ### Operating System Alpine 3.16