[Python-bugs-list] [ python-Bugs-485142 ] memory leak in test_binop
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Wed, 05 Dec 2001 15:31:15 -0800
Bugs item #485142, was opened at 2001-11-24 10:49
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Category: Python Interpreter Core
Group: Python 2.2
>Status: Closed
>Resolution: Fixed
Priority: 7
Submitted By: Neal Norwitz (nnorwitz)
Assigned to: Tim Peters (tim_one)
Summary: memory leak in test_binop
Initial Comment:
test_binop leaks memory in longobjects
see attached file for detailed info
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>Comment By: Tim Peters (tim_one)
Date: 2001-12-05 15:31
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Thank you for finding this, Neal! test_binop in an
infinite loop no longer grows, after Guido fixed the
__slots__ leak, so closing this one (it grew megabytes per
second before that fix). The connection to longs is simply
that the Rat class stores some long objects in its
__slots__; if it had stored floats instead, this would have
looked leak a float leak; etc.
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Comment By: Tim Peters (tim_one)
Date: 2001-12-05 14:22
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Reassigned to me because I started on it, and boosted
priority.
Turns out that when an object of a new-style class with
__slots__ goes away, the slot vars don't get decref'ed
(like the Rat class in test_binop). This is a serious bug
and Guido is opening a separate report on it. I'll come
back to this bug after it's fixed (it may well be the only
problem in test_binop).
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Comment By: Tim Peters (tim_one)
Date: 2001-11-27 12:05
Message:
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Assigned to Barry.
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