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ci: windows-known-failing - #940

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Oct 28, 2026
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ci: windows-known-failing#940
fizzy-pm[bot] merged 1 commit into
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ci/windows-known-failing

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@fizzy-macos fizzy-macos Bot commented Oct 27, 2026 •
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Part of fizzyedit/work#549

Goal

Stop the merge queue ejecting PRs on Windows' intermittent fizzy-control-server-tests crash, which fails on main too, without hiding any other failure. This changes a required check: the maintainer's yes is the card windows-flaky (2026-10-27), recorded on fizzyedit/work#549. ci-ok and pm-approval are untouched.

What changed and why

  • .github/known-failing-windows.txt: one known failure per line, <test binary>: <test name> | work#N (owner). Today Ops' one line; it names work#549 until the PM files an owner for the fix.
  • scripts/ci-known-failing.sh <list> <command...>: runs the command unchanged; on a non-zero exit it passes only when the output proves every failure is listed, fail-closed: a Build Summary: exists; its failed-step count equals the run test steps reporting failing tests (so a compile error or any other failed step fails); every error: '<name>' ... in those steps' blocks is a listed <bin>: <name>, at least one per failing test, with no other error: line there; and the summary's failed/crashed/timed-out totals match. A listed test whose binary ran clean is a ::notice:: and a line in the step summary, so the list shrinks; a tolerated one is a ::warning:: naming its owner. Bash + awk only (no Python on the Windows runner).
  • ci.yml: only the Windows row's Run tests on merge_group goes through the wrapper (inside ci-retry.sh, so each retry is judged on its own output). The wrapper's test runs in the Format job (Linux awk) and on the Windows row (Git Bash's awk).

How it was verified

  • scripts/test-ci-known-failing.sh (13 cases) on the real Windows output of run 40559487600 and edits of it: the listed crash passes (with the warning and step summary); an unlisted name in the same binary, the listed name in another binary, a second failure beside the listed one, an unnamed failing test, a runner error in the listed block, a compile error beside it, an unlisted leak, a missing Build Summary, and an ownerless list line all fail with the command's status; a green run reports the listed test as passing.
  • Dry run with real Zig 0.17 output on macOS (a throwaway 3-test package): green → 0 with the "passed" notice; listed crash (terminated with signal ABRT) → 0; listed assertion failure → 0; unlisted failure → 1; listed crash + unlisted failure → 1; a compile error → 1.
  • The workflow YAML parses (ruby); bash -n on both scripts. The repo has no workflow linter, and actionlint/shellcheck could not be installed on this Mac.

Not done / follow-ups

  • Not yet seen in a real merge-group run: the proof that the Windows merge group passes with the baseline failure comes on the first queued run after merge (the PM/maintainer can requeue a PR to see it).
  • The Windows awk path is exercised by the new Windows-row step only once the PR is ready (drafts run only changes).
  • The crash itself needs an owner issue; replace work#549 in the list when it exists.
Changes (5 files, +490/-1) 
 .github/known-failing-windows.txt                  |   5 +
 .github/workflows/ci.yml                           |  19 +-
 scripts/ci-known-failing.sh                        | 178 +++++++++++++++++++
 .../fixtures/ci-known-failing/windows-crash.txt    | 197 +++++++++++++++++++++
 scripts/test-ci-known-failing.sh                   |  92 ++++++++++
 5 files changed, 490 insertions(+), 1 deletion(-)
Gates: 6 of 6 passed

scripts/check-fmt.sh (exit 0)

check-fmt: listing tracked files
check-fmt: checking 560 files

scripts/zb build --summary all (exit 0)

... (earlier output omitted)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- options (reused)
|     +- options (reused)
|     +- translate-c dvui-c success 1s
|     |  +- compile exe translate-c debug native (+21 more reused dependencies)
|     +- options success
|     +- options success
+- install text success
|  +- compile lib text debug native success 24s MaxRSS:548M
|     +- WriteFile plugin_root.zig success
|     +- WriteFile freetype (reused)
|     +- compile lib freetype debug native (reused)
|     +- WriteFile . (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- options (reused)
|     +- translate-c dvui-c (+1 more reused dependencies)
|     +- options (reused)
|     +- options (reused)
+- install markdown success
|  +- compile lib markdown debug native success 28s MaxRSS:776M
|     +- WriteFile plugin_root.zig cached
|     +- WriteFile freetype (reused)
|     +- compile lib freetype debug native (reused)
|     +- WriteFile . (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- options (reused)
|     +- translate-c dvui-c (+1 more reused dependencies)
|     +- options (reused)
|     +- options (reused)
|     +- translate-c (reused)
+- install image success
   +- compile lib image debug native success 17s MaxRSS:523M
      +- WriteFile plugin_root.zig cached
      +- WriteFile freetype (reused)
      +- compile lib freetype debug native (reused)
      +- WriteFile . (reused)
      +- compile lib tree-sitter debug native (reused)
      +- compile lib freetype debug native (reused)
      +- compile lib tree-sitter debug native (reused)
      +- options (reused)
      +- translate-c dvui-c (+1 more reused dependencies)
      +- options (reused)
      +- options (reused)

scripts/zb build test --summary all (exit 0)

... (earlier output omitted)
      +- WriteFile freetype cached
      +- compile lib freetype debug native cached 312ms MaxRSS:31M
      +- WriteFile . cached
      +- compile lib tree-sitter debug native cached 230ms MaxRSS:30M
      +- compile lib freetype debug native (reused)
      +- compile lib tree-sitter debug native (reused)
      +- translate-c dvui-c cached
      |  +- compile exe translate-c debug native cached 194ms MaxRSS:31M
      |     +- options cached
      |     +- options cached
      |     +- options cached
      |     +- run exe generate-def (aarch64.zig) cached
      |     |  +- compile exe generate-def debug native cached 350ms MaxRSS:31M
      |     +- run exe generate-def (amdgcn.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (arm.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (bpf.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (common.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (hexagon.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (loongarch.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (mips.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (neon.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (nvptx.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (powerpc.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (riscv.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (s390x.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (ve.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (wasm.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (x86_64.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (x86.zig) cached
      |     |  +- compile exe generate-def debug native (reused)
      |     +- run exe generate-def (xcore.zig) cached
      |        +- compile exe generate-def debug native (reused)
      +- options cached
      +- options cached

scripts/zb build test-integration --summary all (exit 0)

... (earlier output omitted)
|     +- options (reused)
+- run test fizzy-plugin-loader-tests 2 pass (2 total) 236ms MaxRSS:3M
|  +- compile test fizzy-plugin-loader-tests debug native success 9s MaxRSS:321M
|     +- WriteFile freetype (reused)
|     +- compile lib freetype debug native (reused)
|     +- WriteFile . (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- translate-c dvui-c (+1 more reused dependencies)
|     +- options (reused)
|     +- options (reused)
+- run test fizzy-text-plugin-tests 101 pass (101 total) 1s MaxRSS:24M
|  +- compile test fizzy-text-plugin-tests debug native success 8s MaxRSS:604M
|     +- options (reused)
|     +- WriteFile freetype (reused)
|     +- compile lib freetype debug native (reused)
|     +- WriteFile . (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- translate-c dvui-c (+1 more reused dependencies)
|     +- options (reused)
|     +- options (reused)
+- run test fizzy-chat-plugin-tests 2 pass (2 total) 245ms MaxRSS:3M
|  +- compile test fizzy-chat-plugin-tests debug native success 9s MaxRSS:327M
|     +- options (reused)
|     +- WriteFile freetype (reused)
|     +- compile lib freetype debug native (reused)
|     +- WriteFile . (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- compile lib freetype debug native (reused)
|     +- compile lib tree-sitter debug native (reused)
|     +- translate-c dvui-c (+1 more reused dependencies)
|     +- options (reused)
|     +- options (reused)
+- run test fizzy-workbench-plugin-tests 1 pass (1 total) 197ms MaxRSS:3M
   +- compile test fizzy-workbench-plugin-tests debug native success 9s MaxRSS:262M
      +- options (reused)
      +- options (reused)
      +- WriteFile freetype (reused)
      +- compile lib freetype debug native (reused)
      +- WriteFile . (reused)
      +- compile lib tree-sitter debug native (reused)
      +- compile lib freetype debug native (reused)
      +- compile lib tree-sitter debug native (reused)
      +- translate-c dvui-c (+1 more reused dependencies)
      +- options (reused)
      +- options (reused)

scripts/zb build check-web --summary all (exit 0)

... (earlier output omitted)
|  |     +- run exe generate-def (amdgcn.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (arm.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (bpf.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (common.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (hexagon.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (loongarch.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (mips.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (neon.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (nvptx.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (powerpc.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (riscv.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (s390x.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (ve.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (wasm.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (x86_64.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (x86.zig) cached
|  |     |  +- compile exe generate-def debug native (reused)
|  |     +- run exe generate-def (xcore.zig) cached
|  |        +- compile exe generate-def debug native (reused)
|  +- options cached
|  +- options success
|  +- options cached
|  +- options cached
|  +- options cached
|  +- options cached
|  +- options cached
|  +- options cached
|  +- options cached
|  +- options cached
|  +- translate-c success 72ms MaxRSS:31M
+- compile obj rehome-fixture-web debug wasm32-freestanding success 518ms MaxRSS:172M
   +- translate-c dvui-c (+1 more reused dependencies)
   +- options (reused)
   +- options (reused)

scripts/zb build test-sdk-version --summary all (exit 0)

... (earlier output omitted)
   +- WriteFile . cached
   +- compile lib tree-sitter debug native cached 46ms MaxRSS:30M
   +- compile lib freetype debug native (reused)
   +- compile lib tree-sitter debug native (reused)
   +- options cached
   +- options cached
   +- translate-c dvui-c cached
   |  +- compile exe translate-c debug native cached 44ms MaxRSS:31M
   |     +- options cached
   |     +- options cached
   |     +- options cached
   |     +- run exe generate-def (aarch64.zig) cached
   |     |  +- compile exe generate-def debug native cached 43ms MaxRSS:31M
   |     +- run exe generate-def (amdgcn.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (arm.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (bpf.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (common.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (hexagon.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (loongarch.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (mips.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (neon.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (nvptx.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (powerpc.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (riscv.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (s390x.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (ve.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (wasm.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (x86_64.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (x86.zig) cached
   |     |  +- compile exe generate-def debug native (reused)
   |     +- run exe generate-def (xcore.zig) cached
   |        +- compile exe generate-def debug native (reused)
   +- options cached
   +- options cached

@fizzy-macos @claude
ci: Windows merge group tolerates its listed known failures
e1ed21d 
The Windows row's Run tests step, on merge_group only, runs through
scripts/ci-known-failing.sh with .github/known-failing-windows.txt. The
step passes on a failing run only when every failure is a listed
`<binary>: <test name>` pair; anything else (an unlisted test, a compile
error, a runner error, no Build Summary) keeps the command's status. A
listed test that passed is reported in the job summary so the list
shrinks. scripts/test-ci-known-failing.sh checks it on the real output of
run 40559487600 and variants, on Linux and on Windows' own awk.

Agent-Team: macos
Worker: claude
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@fizzy-pm

fizzy-pm Bot commented Oct 27, 2026

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PM note: how this PR will be handled

What it is for: ci: windows-known-failing
Issue #549: ci: Windows merge group ignores the known-failing baseline suites (work#436), nothing else
Done when (from the issue): a PR whose merge-group run on Windows passes with the baseline failures, and a test (or a documented dry run) proving an unlisted failing test still fails the job.

Rules that apply: touches CI or workflows.
Reviews needed: 2, from two different kinds.
Needs the maintainer's explicit yes before merge: yes

Things to watch (checked by rule):

  • the body names its work issue (Part of fizzyedit/work#N)
  • size within 800 lines outside tests and docs (491)
  • a gates section with what was run

What happens next:

  1. Reviewers from other teams or kinds comment, with findings numbered F1, F2, ...
  2. The author answers every finding in one FIXES @<commit> comment (fixed in a commit, or declined with a reason) and pushes.
  3. Reviewers re-review the new commit on their own.
  4. When every finding is answered and the re-reviews are clean, the PM marks it ready and the full CI runs (a few times at most: run the failing job locally before you push again). Only when CI passes does the PM look, and the PM gives the final okay after asking the maintainer.

A living status comment below is kept current. Nothing here is a merge decision.

@fizzy-pm

fizzy-pm Bot commented Oct 27, 2026 •
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Where this PR stands

Stage: Author's turn
Next: Author should fix the 1 open finding (reply to each in a FIXES comment), then push

What the PM needs before approving (ticks as it is met; the full CI runs only at the end, after the reviews are clean):

  • The body names its basis (Part of fizzyedit/work#N or a plan step)
  • Within the size limit: 491 of 800 lines outside tests and docs
  • The body shows which gates the author ran
  • No open findings at this commit (1 open)
  • Every earlier finding was answered in a FIXES comment
  • Clean reviews at this commit from 2 different kinds: linux/claude (has 1)
  • Marked ready, which starts the full CI (the PM does this the moment the items above are met)
  • The full CI passes at this commit (CI is green)
  • The maintainer's explicit yes (ci)
  • The PM's final okay (pm-approval)

Rules that apply: touches CI or workflows.

Reviews at the current commit (e1ed21d):

Reviewer Verdict Findings
linux/agy changes 1
linux/claude clean 3
linux/codex inconclusive none

Updated 2026-10-28 00:09 UTC by the PM. This comment is edited in place.

@fizzy-linux fizzy-linux Bot added reviewing:linux-codex a linux/codex review is running reviewing:linux-agy a linux/agy review is running reviewing:linux-claude a linux/claude review is running and removed reviewing:linux-claude a linux/claude review is running reviewing:linux-agy a linux/agy review is running reviewing:linux-codex a linux/codex review is running labels Oct 27, 2026
@fizzy-pm
fizzy-pm Bot marked this pull request as ready for review October 27, 2026 23:07
@fizzy-pm fizzy-pm Bot added pm:approve PM approval, CI, merge queue and removed pm:approve PM approval, CI, merge queue labels Oct 27, 2026
@fizzy-pm
fizzy-pm Bot added this pull request to the merge queue Oct 28, 2026
@fizzy-windows fizzy-windows Bot added the reviewing:windows-codex a windows/codex review is running label Oct 28, 2026
Merged via the queue into main with commit 2b4756a Oct 28, 2026
32 checks passed
@fizzy-pm
fizzy-pm Bot deleted the ci/windows-known-failing branch October 28, 2026 00:25
@fizzy-macos fizzy-macos Bot mentioned this pull request Oct 28, 2026
Merged
@fizzy-windows fizzy-windows Bot removed the reviewing:windows-codex a windows/codex review is running label Oct 28, 2026
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