Bug #78412 [NEW]: Assertion `p->refcount > 0' in zend_gc_delref

From: kelunik Operating system: Ubuntu 19.04 PHP version: master-Git-2019-08-13 (Git) Package: Reproducible crash Bug Type: Bug Bug description:Assertion `p->refcount > 0' in zend_gc_delref Description: ------------ Assertion failure happens with latest master, doesn't happen with 7.3.7 or my system's 7.2 binary. Test script: --------------- https://github.com/amphp/http-client/commit/780c0d894556c4ecbfa33233cbccd918a9d4c2a2 php examples/6-concurrent-requests.php php: /home/kelunik/.php-build/release/Zend/zend_types.h:1035: zend_gc_delref: Assertion `p->refcount > 0' failed. Expected result: ---------------- No assertion error. Actual result: -------------- php: /home/kelunik/.php-build/release/Zend/zend_types.h:1035: zend_gc_delref: Assertion `p->refcount > 0' failed. -- Edit bug report at https://bugs.php.net/bug.php?id=78412&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=78412&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78412&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78412&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78412&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78412&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78412&r=support Expected behavior: https://bugs.php.net/fix.php?id=78412&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78412&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78412&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78412&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=78412&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=78412&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78412&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78412&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78412&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78412&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78412&r=mysqlcfg