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test_write_pipe failures on PPC64le

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
python
Domain
operating-systems, testing-qa

Research direction

Start with tests/test_pipes.py and the failing test_write_buffer_full cases in Test_AIO_Pipes and Test_UV_Pipes. Compare the PPC64le failure log with results on other architectures, then verify that both tests pass on PPC64le without regressing the other platforms.

Written by the indexing model from the issue text.

Description

  • uvloop version: 0.17.0
  • Python version: 3.11
  • Platform: Linux Fedora 37 / rawhide
  • Can you reproduce the bug with PYTHONASYNCIODEBUG in env?: unknown
  • Does uvloop behave differently from vanilla asyncio? How?: unknown

Test failures on PPC64le (aka little endian):

test_write_buffer_full (tests.test_pipes.Test_AIO_Pipes.test_write_buffer_full) ... FAIL
test_write_buffer_full (tests.test_pipes.Test_UV_Pipes.test_write_buffer_full) ... FAIL

All other arches worked. For a while, logs of failure can be seen at: https://kojipkgs.fedoraproject.org//work/tasks/2302/97832302/build.log

Dominant language
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