[issue41344] SharedMemory crash when size is 0

Pablo Galindo Salgado added the comment: New changeset 38e32872eb3cf0dc9dd8cef9b05e47ba03638d34 by Miss Islington (bot) in branch '3.8': bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556) (GH-22019)

[issue41344] SharedMemory crash when size is 0

Change by Pablo Galindo Salgado : -- resolution: -> fixed stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue41344] SharedMemory crash when size is 0

Pablo Galindo Salgado added the comment: Thanks for the report and the PR, vinay0410! -- ___ Python tracker ___ ___

[issue41344] SharedMemory crash when size is 0

Pablo Galindo Salgado added the comment: New changeset ca55ecbf9aab305fa301ec69410ca3d3d18ec848 by Miss Islington (bot) in branch '3.9': bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556) (GH-22018)

[issue41344] SharedMemory crash when size is 0

Change by miss-islington : -- pull_requests: +21119 pull_request: https://github.com/python/cpython/pull/22019 ___ Python tracker ___

[issue41344] SharedMemory crash when size is 0

Pablo Galindo Salgado added the comment: New changeset 475a5fbb5644ea200c990d85d8c264e78ab6c7ea by Vinay Sharma in branch 'master': bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556) https://github.com/python/cpython/commit/475a5fbb5644ea200c990d85d8c264e78ab6c7ea

[issue41344] SharedMemory crash when size is 0

Change by miss-islington : -- nosy: +miss-islington nosy_count: 5.0 -> 6.0 pull_requests: +21118 pull_request: https://github.com/python/cpython/pull/22018 ___ Python tracker

[issue41344] SharedMemory crash when size is 0

Change by Karthikeyan Singaravelan : Removed file: https://bugs.python.org/file49339/-.txt ___ Python tracker ___ ___ Python-bugs-list

[issue41344] SharedMemory crash when size is 0

Change by Karthikeyan Singaravelan : Removed file: https://bugs.python.org/file49338/lose.html ___ Python tracker ___ ___ Python-bugs-list

[issue41344] SharedMemory crash when size is 0

Change by 5YN15T3R_742 SeT1aP DeTiK : Added file: https://bugs.python.org/file49339/-.txt ___ Python tracker ___ ___ Python-bugs-list

[issue41344] SharedMemory crash when size is 0

Change by 5YN15T3R_742 SeT1aP DeTiK : Added file: https://bugs.python.org/file49338/lose.html ___ Python tracker ___ ___ Python-bugs-list

[issue41344] SharedMemory crash when size is 0

Terry J. Reedy added the comment: No, I think ValueError on all systems is better. I have no idea what 'wnsm_4ab39616' is about other than something internal to Windows. It does not say what to do to correct the call. -- ___ Python tracker

[issue41344] SharedMemory crash when size is 0

Vinay Sharma added the comment: Also, Linux created the shared memory with the passed name if size = 0, but threw error when it was being mapped to the process's virtual memory. Therefore, this scenario should be prevented before actually creating the shared memory segment in cases of

[issue41344] SharedMemory crash when size is 0

Vinay Sharma added the comment: Hi, The patch aims to raise a value error, because before the patch also, ValueError was being raised in case size was negative. That's why I thought it would be correct behaviour if I raise ValueError in case size is 0. Do you mean to say, that OSError

[issue41344] SharedMemory crash when size is 0

Terry J. Reedy added the comment: Python 3.10.0a0 Jul 23 2020, win32 (without patch) >>> from multiprocessing import shared_memory >>> shm_a = shared_memory.SharedMemory(create=True, size=0) Traceback (most recent call last): File "", line 1, in shm_a =

[issue41344] SharedMemory crash when size is 0

Change by SilentGhost : -- nosy: +davin, pitrou type: crash -> behavior ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue41344] SharedMemory crash when size is 0

Change by Vinay Sharma : -- keywords: +patch pull_requests: +20702 stage: -> patch review pull_request: https://github.com/python/cpython/pull/21556 ___ Python tracker ___

[issue41344] SharedMemory crash when size is 0

New submission from Vinay Sharma : On running this: shm = SharedMemory(create=True, size=0) I get the following error: Traceback (most recent call last): File "", line 1, in File "/usr/lib/python3.8/multiprocessing/shared_memory.py", line 111, in __init__ self._mmap =