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pipe test failures on some Linux configurations #95672
Description
Bug report
On Linux systems, when configured with a default pipe capacity of 4096, the following test fail:
- test_fcntl.test_fcntl_f_pipesize
- test_subprocess.test_pipesizes
From a recent fcntl(2) Linux man page:
F_SETPIPE_SZ:
...
Attempts to set the pipe capacity below the page size are silently rounded up to the page size.
There's a check that attempts to skip the tests if the pipe capacity is 512 bytes, but that's less than the smallest page size on x86.
Since this feature appears to be Linux specific, the check should:
- Use
os.sysconf('SC_PAGESIZE')as a minimum - Fix the typos ("SkitTest") in test_fcntl_f_pipesize and test_pipesizes
Linked PRs
- gh-95672 fix typo SkitTest to SkipTest #102119
- [3.11] gh-95672 fix typo SkitTest to SkipTest (gh-102119) #102121
- [3.10] gh-95672 fix typo SkitTest to SkipTest (gh-102119) #102122
- gh-95672 skip fcntl when pipesize is smaller than pagesize #102163
- gh-95672: Update memory_watchdog to use test.support.get_pagesize #102365
- gh-95672: Fix versionadded indentation of get_pagesize in test.rst #102455
Activity
corona10 commentedon Feb 18, 2023
Same as #95675 (comment)
I will introduce this issue into the internal OSS sprint as the good first bug.
I will delegate the issue to my mentees.
Thank you for understanding!
hyeongyun0916 commentedon Feb 20, 2023
I'm looking this issue 👀
gh-95672 fix typo SkitTest to SkipTest (gh-102119)
pythongh-95672 fix typo SkitTest to SkipTest (pythongh-102119)
pythongh-95672 fix typo SkitTest to SkipTest (pythongh-102119)
[3.11] gh-95672 fix typo SkitTest to SkipTest (gh-102119) (#102121)
[3.10] gh-95672 fix typo SkitTest to SkipTest (gh-102119) (gh-102122)
Merge branch 'main' into lockfreecp
gh-95672 skip fcntl when pipesize is smaller than pagesize (gh-102163)
gh-95672: Update memory_watchdog to use test.support.get_pagesize (gh…
corona10 commentedon Mar 2, 2023
@hyeongyun0916 Thanks for the hardwork!
gh-95672: Fix versionadded indentation of get_pagesize in test.rst (g…
Merge branch 'main' into nodeaddict
Merge branch 'main' into inlinecomp2
pythongh-95672 fix typo SkitTest to SkipTest (pythongh-102119)
pythongh-95672 fix typo SkitTest to SkipTest (pythongh-102119)
pythongh-95672 fix typo SkitTest to SkipTest (pythongh-102119)