os: TestPipeIOCloseRace failures

[gopherbot]

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2025-07-24 23:24 gotip-windows-arm64 go@7b500243 os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2025-11-11 15:26 gotip-windows-arm64 go@b709a3e8 os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2025-11-21 21:25 gotip-windows-arm64 go@6f16669e os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2026-01-08 17:58 gotip-windows-arm64 go@6b2505c7 os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2026-02-03 19:53 go1.24-windows-arm64 release-branch.go1.24@6a501314 os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes

[gopherbot]

Change https://go.dev/cl/745601 mentions this issue: internal/poll: readWriteLock should destroy the fd when there are no more references to it

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os" && test == "TestPipeIOCloseRace"

2026-02-27 04:38 gotip-windows-arm64 go@f71432d2 os.TestPipeIOCloseRace [SKIP] (log)

=== RUN   TestPipeIOCloseRace
=== PAUSE TestPipeIOCloseRace
=== CONT  TestPipeIOCloseRace

— watchflakes