Interpreter segfaults when LC_CTYPE is unsupported on Linux s390x
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interpreter-core
type-crash
- Dominant language
- Python
- Stars
- 77.2k
- Forks
- 36k
- PR merge metrics
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Description
Crash report
set LC_CTYPE to an unsupported locale, e.g.
export LC_CTYPE=UTF-8
You should hopefully get -bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory. If not, set LC_CTYPE to something random, e.g. foobar.
Start python REPL => segfault.
Error messages
Enter any relevant error message caused by the crash, including a core dump if there is one.
Your environment
- CPython versions tested on: 3.7.13, 3.8.13, 3.9.12
- Operating system and architecture: Linux s390x
- Running in a conda env. Unsetting
LC_CTYPEfixes the problem, in the same env. (System Python3 not available/installable on the available machine unfortunately.)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the crash on Linux s390x with CPython 3.7.13, 3.8.13, or 3.9.12 while LC_CTYPE is set to an unsupported value, then compare it with the same environment after unsetting LC_CTYPE. Done means starting the Python REPL no longer segfaults under the reported locale configuration.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, 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