#12215: Memleak in UniqueRepresentation, @cached_method
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Reporter: vbraun | Owner: rlm
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: memleak | Keywords:
UniqueRepresentation cached_method caching
Work_issues: segfaults for elliptic curves | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #11115 #11900
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Comment(by vbraun):
Yes, you are right: `__dealloc__` is ok, `__del__` is not.
But the problem seems to be that we finalize Pari before finalizing all
Pari elements. Ideally, elements keep their parent alive because they hold
a reference but I think GENs are often used in an ad-hoc way in Sage. So
moving the Pari finalizer to `__dealloc__` just makes it run later, but
still gives no guarantees about finalizer ordering.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12215#comment:35>
Sage <http://www.sagemath.org>
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