Issue35542
Created on 2018-12-20 06:53 by shuoz, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (3) | |||
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| msg332183 - (view) | Author: shuoz (shuoz) | Date: 2018-12-20 06:53 | |
stack exhaustion in 3.6.7.
in python 3.6.7 set recursive depth 20000 will exhaustion stack and get Segmentation fault. But this dont happen in python 2.7
```
import sys
sys.setrecursionlimit(20000)
def f():
f()
f()
```
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| msg332184 - (view) | Author: Karthikeyan Singaravelan (xtreak) *  |
Date: 2018-12-20 07:06 | |
Related older issue : issue1110055 https://docs.python.org/3/library/sys.html#sys.setrecursionlimit > The highest possible limit is platform-dependent. A user may need to set the limit higher when they have a program that requires deep recursion and a platform that supports a higher limit. This should be done with care, because a too-high limit can lead to a crash. I think this is a known case where the stack limit is hit depending on the operating system before RecursionError can be raised when a higher recursion limit is set. On my machine (Mac 10.10.4) this segfaults on 2.7 but raises RecurstionError on Python 3.7.1. Increasing the limit to 200000 causes segfault on 3.7.1. |
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| msg332188 - (view) | Author: shuoz (shuoz) | Date: 2018-12-20 07:25 | |
thank you for your reply. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:09 | admin | set | github: 79723 |
| 2018-12-20 07:25:10 | shuoz | set | status: open -> closed type: security -> crash messages: + msg332188 resolution: not a bug |
| 2018-12-20 07:06:06 | xtreak | set | nosy:
+ xtreak messages: + msg332184 |
| 2018-12-20 06:53:17 | shuoz | create | |