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Assertion failure in Zend/zend_gc.c #15943
Description
Description
The following code:
<?php
$wm = new WeakMap();
for ($i = 0; $i < 30_000; $i++) {
$fusion[] = $obj = new stdClass;
$wm[$obj] = $obj;
}
$tmp = $wm;
$tmp = null;
gc_collect_cycles();Resulted in this output:
/php-src/Zend/zend_gc.c:791: gc_remove_from_buffer: Assertion `idx' failed.
Aborted (core dumped)
To reproduce:
-d "memory_limit=8M"
PHP Version
PHP 8.4.0-dev
Operating System
ubuntu 22.04
Activity
cmb69 commentedon Sep 18, 2024
For me, this script outputs:
cmb69 commentedon Sep 21, 2024
PHP-8.3 (and maybe lower branches) exhibit the same behavior.
ndossche commentedon Oct 25, 2026
This is fixed as a consequence of the general graceful OOM handling, closing.