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Bug #78412 Generator incorrectly reports non-releasable $this as GC child
Submitted: 2019-08-13 22:06 UTC Modified: 2019-08-14 15:48 UTC
From: kelunik@php.net Assigned:
Status: Closed Package: Reproducible crash
PHP Version: master-Git-2019-08-13 (Git) OS: Ubuntu 19.04
Private report: No CVE-ID: None
View Developer Edit
 [2019-08-13 22:06 UTC] kelunik@php.net 
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.

Patches

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AllCommentsChangesGit/SVN commitsRelated reports
 [2019-08-14 15:01 UTC] nikic@php.net
-Status: Open +Status: Verified
 [2019-08-14 15:01 UTC] nikic@php.net 
Also affects 7.2 (the assertion was added recently).
 [2019-08-14 15:48 UTC] nikic@php.net
-Summary: Assertion `p->refcount > 0' in zend_gc_delref +Summary: Generator incorrectly reports non-releasable $this as GC child
 [2019-08-14 15:54 UTC] nikic@php.net 
Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=fcabe7e5e44067319f9c4123d71a7cea6a823af4
Log: Fixed bug #78412
 [2019-08-14 15:54 UTC] nikic@php.net
-Status: Verified +Status: Closed
 [2019-08-15 13:25 UTC] cmb@php.net 
Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=c4cfab8f8425d01cb8beba604d8a3c9f0ec611b7
Log: Fixed bug #78412
 
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