Message 351012 - Python tracker

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Author	pablogsal
Recipients	Mark.Shannon, christian.heimes, jdemeyer, lukasz.langa, pablogsal, petr.viktorin, pitrou, vstinner
Date	2019-09-02.15:15:57
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1567437357.54.0.680256782899.issue38006@roundup.psfhosted.org>
In-reply-to

Content
I think the problem is that whatever is weak-referenced by the weak ref (CField_Type or similar) is not on the gc list. Because is not on the gc list, handle_weakrefs (https://github.com/python/cpython/blob/master/Modules/gcmodule.c#L1090) is not acting correctly on the weakreferences, clearing them before the tp_clear calls and therefore producing the crash.

I think the problem is that whatever is weak-referenced by the weak ref (CField_Type or similar) is not on the gc list. Because is not on the gc list, handle_weakrefs (https://github.com/python/cpython/blob/master/Modules/gcmodule.c#L1090) is not acting correctly on the weakreferences, clearing them before the tp_clear calls and therefore producing the crash.

History
Date	User	Action	Args
2019-09-02 15:15:57	pablogsal	set	recipients: + pablogsal, pitrou, vstinner, christian.heimes, petr.viktorin, lukasz.langa, Mark.Shannon, jdemeyer
2019-09-02 15:15:57	pablogsal	set	messageid: <1567437357.54.0.680256782899.issue38006@roundup.psfhosted.org>
2019-09-02 15:15:57	pablogsal	link	issue38006 messages
2019-09-02 15:15:57	pablogsal	create