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internal/trace: TestTraceCgoCallback/Default fails on new freebsd-amd64-race LUCI builder with FreeBSD 14.1 #71556

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internal/trace: TestTraceCgoCallback/Default fails on new freebsd-amd64-race LUCI builder with FreeBSD 14.1#71556
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mknyszek
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NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.OS-FreeBSDRaceDetectorcompiler/runtimeIssues related to the Go compiler and/or runtime.
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Go1.28

Description

@dmitshur
dmitshur
opened on Feb 4, 2025

Running this test on a new LUCI builder configuration that sets the -race flag on FreeBSD 14.1 fails with:

# GOOS=freebsd GOARCH=amd64 go test -race -run=^TestTraceCgoCallback$ internal/trace
--- FAIL: TestTraceCgoCallback (1.04s)
--- FAIL: TestTraceCgoCallback/Default (1.02s)
    reader_test.go:100: unexpected error while reading the trace: bad file format: not a Go execution trace?
    trace_test.go:627: found bad trace; dumping to test log...
    trace_test.go:628: dumping trace: bad file format: not a Go execution trace?
FAIL
FAIL	internal/trace	50.965s

It's the only test that fails, so I'll add a temporary skip to let the builder be added without needing a known issue. Filing this issue to track the next steps of investigating and resolving this.

CC @golang/freebsd.

Activity

  1. dmitshur
    added
    NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.
    OS-FreeBSD
    RaceDetector
    on Feb 4, 2025
  2. dmitshur
    added this to the Go1.25 milestone on Feb 4, 2025
  3. gopherbot
    added
    compiler/runtimeIssues related to the Go compiler and/or runtime.
    on Feb 4, 2025

  4. gopherbot commented on Feb 4, 2025

    @gopherbot
    gopherbot
    on Feb 4, 2025
    Contributor

    Change https://go.dev/cl/646396 mentions this issue: internal/trace: skip TestTraceCgoCallback on freebsd-amd64-race builders

  5. gopherbot commented on Feb 4, 2025

    @gopherbot
    gopherbot
    on Feb 4, 2025
    Contributor

    Change https://go.dev/cl/646136 mentions this issue: main.star: add freebsd-amd64-race

  6. mknyszek
    self-assigned this
    on Feb 5, 2025
  7. gopherbot
    added 2 commits that reference this issue on Feb 5, 2025

    main.star: add freebsd-amd64-race

    9d1d223

    internal/trace: skip TestTraceCgoCallback on freebsd-amd64-race builders

    b45c7d5
  8. mknyszek
    added this to Go Compiler / Runtime / Commandon Feb 5, 2025
  9. mknyszek
    moved this to Todo in Go Compiler / Runtime / Commandon Feb 5, 2025
  10. gopherbot
    modified the milestones: Go1.25, Go1.26 on Aug 12, 2025
  11. gopherbot
    modified the milestones: Go1.26, Go1.27 on Feb 10, 2026
  12. gopherbot
    modified the milestones: Go1.27, Go1.28 on Aug 19, 2026
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