python / python/cpython

MMAP duplicate reads and writes on ARM64 platform

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3.7 (EOL) stdlib
Dominant language
Python
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PR merge metrics
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Description

BPO 43131

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2021-02-04.22:45:15.162>
labels = ['3.7', 'library']
title = 'MMAP duplicate reads and writes on ARM64 platform'
updated_at = <Date 2021-02-04.23:02:15.833>
user = 'https://bugs.python.org/psswirhun'

bugs.python.org fields:

activity = <Date 2021-02-04.23:02:15.833>
actor = 'psswirhun'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-02-04.22:45:15.162>
creator = 'psswirhun'
dependencies = []
files = []
hgrepos = []
issue_num = 43131
keywords = []
message_count = 2.0
messages = ['386501', '386502']
nosy_count = 1.0
nosy_names = ['psswirhun']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue43131'
versions = ['Python 3.7']

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reading the linked bugs.python.org issue 43131 and its two messages, then investigate the reported mmap behavior on ARM64. The issue names no files or tests; done means identifying and correcting the duplicate reads and writes and adding verification for the affected behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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