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Created on 2021-03-29 18:42 by pablogsal, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Pull Requests | |||
|---|---|---|---|
| URL | Status | Linked | Edit |
| PR 25075 | merged | pablogsal, 2021-03-29 18:52 | |
| PR 25083 | merged | miss-islington, 2021-03-29 22:39 | |
| PR 25084 | merged | miss-islington, 2021-03-29 22:39 | |
| PR 25085 | merged | pablogsal, 2021-03-29 23:05 | |
| Messages (6) | |||
|---|---|---|---|
| msg389722 - (view) | Author: Pablo Galindo Salgado (pablogsal) *  |
Date: 2021-03-29 18:42 | |
This code crashes (reported by the one and only Matt Wozniski):
import sys
class MyStderr:
def write(self, s):
sys.stderr = None
sys.stderr = MyStderr()
1/0
[1] 34112 segmentation fault ./python.exe lel.py
|
|||
| msg389723 - (view) | Author: Pablo Galindo Salgado (pablogsal) * |
Date: 2021-03-29 18:43 | |
The problem is that https://github.com/python/cpython/blob/master/Python/pythonrun.c#L1074 doesn't take a strong reference to sys.stderr but code underneath can potentially release the GIL and remove the reference that keeps the object alive. |
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| msg389764 - (view) | Author: Pablo Galindo Salgado (pablogsal) * |
Date: 2021-03-29 22:38 | |
New changeset 09b90a037d18f5d4acdf1b14082e57bda78e85d3 by Pablo Galindo in branch 'master': bpo-43660: Fix crash when displaying exceptions with custom values for sys.stderr (GH-25075) https://github.com/python/cpython/commit/09b90a037d18f5d4acdf1b14082e57bda78e85d3 |
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| msg389769 - (view) | Author: miss-islington (miss-islington) | Date: 2021-03-29 23:03 | |
New changeset ba7f8638f93b5d999b25d8556ca19bdc2e12f359 by Miss Islington (bot) in branch '3.8': bpo-43660: Fix crash when displaying exceptions with custom values for sys.stderr (GH-25075) https://github.com/python/cpython/commit/ba7f8638f93b5d999b25d8556ca19bdc2e12f359 |
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| msg389771 - (view) | Author: Pablo Galindo Salgado (pablogsal) * |
Date: 2021-03-29 23:24 | |
New changeset 2f01c562be913004e1d46fc02705c51b81638d67 by Pablo Galindo in branch '3.7': [3.7] bpo-43660: Fix crash when displaying exceptions with custom values for sys.stderr (GH-25075). (GH-25085) https://github.com/python/cpython/commit/2f01c562be913004e1d46fc02705c51b81638d67 |
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| msg389772 - (view) | Author: Pablo Galindo Salgado (pablogsal) * |
Date: 2021-03-29 23:24 | |
New changeset ff4715a7332123713de9920e724bb6c412d8ccef by Miss Islington (bot) in branch '3.9': bpo-43660: Fix crash when displaying exceptions with custom values for sys.stderr (GH-25075) (GH-25083) https://github.com/python/cpython/commit/ff4715a7332123713de9920e724bb6c412d8ccef |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:43 | admin | set | github: 87826 |
| 2021-03-29 23:50:17 | pablogsal | set | status: open -> closed resolution: fixed stage: patch review -> resolved |
| 2021-03-29 23:24:37 | pablogsal | set | messages: + msg389772 |
| 2021-03-29 23:24:24 | pablogsal | set | messages: + msg389771 |
| 2021-03-29 23:05:01 | pablogsal | set | pull_requests: + pull_request23833 |
| 2021-03-29 23:03:24 | miss-islington | set | messages: + msg389769 |
| 2021-03-29 22:39:22 | miss-islington | set | pull_requests: + pull_request23832 |
| 2021-03-29 22:39:13 | miss-islington | set | nosy:
+ miss-islington pull_requests: + pull_request23831 |
| 2021-03-29 22:38:59 | pablogsal | set | messages: + msg389764 |
| 2021-03-29 18:52:46 | pablogsal | set | keywords:
+ patch stage: patch review pull_requests: + pull_request23825 |
| 2021-03-29 18:43:40 | pablogsal | set | messages: + msg389723 |
| 2021-03-29 18:42:46 | pablogsal | create | |