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Created on2012-12-15 01:39 bybfroehle, last changed2022-04-11 14:57 byadmin. This issue is nowclosed.
| Files | ||||
|---|---|---|---|---|
| File name | Uploaded | Description | Edit | |
| heaptype_refcnt_testcases.py | bfroehle,2012-12-20 01:18 | |||
| Messages (6) | |||
|---|---|---|---|
| msg177527 -(view) | Author: Bradley Froehle (bfroehle)* | Date: 2012-12-15 01:39 | |
There is a reference leak when using PyType_FromSpec with custom tp_dealloc. This was first noted in issue#15142, where a fix was given which only applies to types which do not override tp_dealloc.For example, the xxlimited.Xxo type suffers from this:Python 3.3.0 (default, Oct 26 2012, 11:06:17) [GCC 4.6.3] on linuxType "help", "copyright", "credits" or "license" for more information.>>> import xxlimited>>> import sys>>> Xxo = type(xxlimited.new())>>> e = Xxo()>>> sys.getrefcount(Xxo)7>>> e = Xxo()>>> sys.getrefcount(Xxo)8>>> e = Xxo()>>> sys.getrefcount(Xxo)9 | |||
| msg177528 -(view) | Author: Bradley Froehle (bfroehle)* | Date: 2012-12-15 02:06 | |
I see this issue came up in the course of#15653 as well. | |||
| msg177794 -(view) | Author: Bradley Froehle (bfroehle)* | Date: 2012-12-20 01:18 | |
The attached file `heaptype_refcnt_testcases.py` runs through several test cases (ssl.SSLError, a subclass of ssl.SSLError, and xxlimited.Xxo) seeing if references are leaked in each instance.Unfortunately `xxlimited.Xxo` isn't set to be a base type and I don't know of any other types in the default install which use PyType_FromSpec with a custom tp_dealloc. | |||
| msg244420 -(view) | Author: Alyssa Coghlan (ncoghlan)* | Date: 2015-05-29 21:29 | |
The new test cases forPEP 489 (multi-phase extension module import) appear to be encountering this leak.Seeissue 24268 for context. | |||
| msg244814 -(view) | Author: Roundup Robot (python-dev) | Date: 2015-06-04 11:58 | |
New changeset265eeb60443a by Nick Coghlan in branch '3.5':Issue#24373: EliminatePEP 489 test refleakshttps://hg.python.org/cpython/rev/265eeb60443a | |||
| msg352187 -(view) | Author: Petr Viktorin (petr.viktorin)* | Date: 2019-09-12 14:43 | |
This is fixed in Python 3.5+. | |||
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:39 | admin | set | github: 60894 |
| 2019-09-12 14:43:43 | petr.viktorin | set | status: open -> closed resolution: fixed messages: +msg352187 stage: resolved |
| 2015-06-04 11:58:34 | python-dev | set | nosy: +python-dev messages: +msg244814 |
| 2015-05-29 21:29:34 | ncoghlan | set | nosy: +petr.viktorin messages: +msg244420 |
| 2015-05-29 21:26:17 | ncoghlan | set | nosy: +ncoghlan |
| 2012-12-20 01:18:48 | bfroehle | set | files: +heaptype_refcnt_testcases.py messages: +msg177794 |
| 2012-12-19 18:45:07 | bfroehle | set | nosy: +pitrou |
| 2012-12-15 15:45:51 | pitrou | set | nosy: +loewis,Robin.Schreiber |
| 2012-12-15 02:06:20 | bfroehle | set | messages: +msg177528 |
| 2012-12-15 01:39:25 | bfroehle | create | |