Bug #79813 [Com]: Assertion `p->refcount > 0' failed.

Edit report at https://bugs.php.net/bug.php?id=79813&edit=1 ID: 79813 Comment by: enumag at gmail dot com Reported by: changochen1 at gmail dot com Summary: Assertion `p->refcount > 0' failed. Status: Verified Type: Bug Package: Scripting Engine problem PHP Version: 7.4 Block user comment: N Private report: N New Comment: Ignore my last comment. PHP 7.4.9 also has the problem. Previous Comments: ------------------------------------------------------------------------ [2020-12-30 10:27:15] enumag at gmail dot com I tried to narrow down when this bug appeared. From my testing PHP 7.4.9 is fine and 7.4.10+ has this problem. ------------------------------------------------------------------------ [2020-12-22 19:00:08] enumag at gmail dot com PHP version: 7.4.13 This just popped up randomly in my CI: ``` Assertion failed: p->refcount > 0 (/usr/src/php/Zend/zend_types.h: zend_gc_delref: 1039) Aborted (core dumped) ``` I have a gdb backtrace from the core but it's most likely not very useful... ``` Reading symbols from /usr/local/bin/php... warning: Can't read pathname for load map: No error information. [New LWP 156] Core was generated by `php vendor/bin/phpunit --colors=always --exclude-group ignore'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f62b9245a71 in setjmp () from /lib/ld-musl-x86_64.so.1 #0 0x00007f62b9245a71 in setjmp () from /lib/ld-musl-x86_64.so.1 #1 0x00007f62b9245bcc in raise () from /lib/ld-musl-x86_64.so.1 #2 0x0000003000000010 in ?? () #3 0x00007ffd7d4a7c10 in ?? () #4 0x00007ffd7d4a7b50 in ?? () #5 0x0000563b9a3428c0 in ?? () #6 0x0000563b9a346380 in ?? () #7 0x0000563b9857a9b7 in ?? () #8 0x0000563b9857a998 in ?? () #9 0x0000563b9857ab90 in ?? () #10 0x000000000000040f in ?? () #11 0x00000000000000c0 in ?? () #12 0x00007f62ab3d44e8 in ?? () #13 0x0000563b9a3462e0 in ?? () #14 0x0000563b9a346360 in ?? () #15 0x00007ffd7d4a7bd0 in ?? () #16 0x00007ffd7d4a7c5c in ?? () #17 0x00007ffd7d4a7c70 in ?? () #18 0x0000563b9a4f8ca0 in ?? () #19 0x00007ffd7d4a7c30 in ?? () #20 0x00007f62b921d713 in abort () from /lib/ld-musl-x86_64.so.1 #21 0x0000563b9a4f8ca0 in ?? () #22 0x00007f62b92494be in ?? () from /lib/ld-musl-x86_64.so.1 #23 0x0000000000000000 in ?? () ``` ------------------------------------------------------------------------ [2020-07-10 08:09:53] cmb@php.net Because that assertion fails on PHP 7.4 as well. ------------------------------------------------------------------------ [2020-07-09 15:34:39] changochen1 at gmail dot com Hi, I wonder why the version info changed, as I tested it on the master brach of version 8.0/ ------------------------------------------------------------------------ [2020-07-09 04:27:01] changochen1 at gmail dot com Description: ------------ LOG: --- php: /home/yongheng/php_clean/Zend/zend_types.h:1162: uint32_t zend_gc_delref(zend_refcounted_h *): Assertion `p->refcount > 0' failed. --- Run with php -f poc.php >/dev/null Test script: --------------- <? foreach ( new InfiniteIterator ( new ArrayIterator ( [ [] ] ) ) as $a ) $c[] = array ( $b.= 1) ; ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79813&edit=1