origin/master has advanced 6 commit(s) since this sha. Re-verify at current HEAD before acting — the callback is tagged to the sha that was tested, which may no longer be the state of the tree.
regression CASCADE: 14 jobs newly red in fc6f76591..a69c18a02 (6 commits) — auto-filed by twatch
- Type: regression cascade (auto-filed by Track T watcher, host borg). Untriaged. 14 jobs went red in ONE sweep — treat as ONE root cause until triage proves otherwise; do NOT fan out per-job tickets.
- Found: 2026-09-29T03:33:28Z
- Root-cause suspects in the red set: none of the known root jobs (
fpc-bootstrap,selfhost-fixedpoint). That is the ONLY heuristic applied here — it does not imply a harness event, and nothing in this filing looked at the build, the box or the range. See the Range section below for commits worth checking.
Range
The named sha
a69c18a0208eCANNOT be the cause — it touches no buildable file (docs/tickets/tstate only). It is the sha that was TESTED, i.e. the upper bound of an untested range, and the cause is somewhere below it.
bad a69c18a0208e, last good fc6f76591258, 6 commit(s) in range (6 of them buildable). No idle bisect will happen — the watcher skips cascades deliberately (one synthetic key matches no job), so this range is narrowed by hand or not at all.
Buildable commits in the range, newest first:
b478aa405be9tools(D): lib_cross_sweep.sh passes the scratch dir the tests taked75e10e22db4fix(A): ReallocMem builds on every target, not only x86-64ce236f19054efix(N): a fresh object as anisoperand or a truth test is released, and evaluated oncedb816a204d06fix(A): a ShortString call result temp holds the whole result, not a stale capacity9da6b773368efix(N): a def in an imported module keeps its annotated typesc65fc287f630fix(A): Length, UpCase and Copy of a Variant work on the string it holds
Repro (start with a suspect, or any listed job)
tools/testmgr.py --tier full --job '<job>' at a69c18a0208eb10268a2642c7c6bd258880f104b
(The sha above is the right one to REPRODUCE at — the jobs really are red there — even when the Range section says it cannot be the CAUSE. Reproducing and blaming are different questions and this line answers the first.)
Newly red jobs
Each job's own recorded failure REASON is printed under its name. When the reasons and the Range section disagree, the reasons win. The range is computed from what CHANGED, not from what the job can SEE — a missing guest loader, an absent dev package or a job that has never once passed on this box all produce a red that no commit in the range caused.
test-nilpy#src:test/test_nilpy_pyeval_host_kwargs_bind_by_name.npy- -index=end chars=HELLO | -index=end chars=HELLO | -index=end chars=HELLO | -only=X | -only=Y | Segmentation fault (core dumped)
test-uforth#src:tools/compiler_srchash.sh@1- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@10- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@11- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@12- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@13- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@2- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@3- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@4- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@5- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@6- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@7- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@8- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
test-uforth#src:tools/compiler_srchash.sh@9- self-host fixedpoint: verified — 1 round(s), 722c38c6faeb (stamp read back; sources match it) | compiling uforth.py as Nil-Python ... | Segmentation fault | test-uforth: FAIL (exit 139) | timeout: th…
Cascade stub: one signal for one event. Track T agent (face 2) or the owning dev track triages the root; individual tickets only for whatever remains red after the root is fixed.
Log
- 2026-09-29 — auto-closed by the borg watcher:
cascade@a69c18a0208epasses at 216d4bd7ca7f (tier full); it was red at a69c18a0208e. Reopening is by a fresh NEW-RED stub, since a second red is a second finding with its own range.