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Track T by default: the FAILING STEP named no owner. Line 2 of 2 is tools/expect_same.sh cmath_integral_family "$(/tmp/cmath_integral_family)" "$(printf 'fabs(-0)=+0\ntrunc(-0.5)=-0\nround. The job's own src (test/cmath_integral_family.c, 2 file(s)) is NOT used here on purpose: it is what the job compiles, not what broke, and guessing a lane from it is what sent three reds in one job to the wrong lane. This is a FALLBACK, not a finding — nothing says the defect is Track T's. Re-lane it before working it.

This commit CANNOT be the cause. The job builds only with $(PXX_STABLE), and this commit moved no stable_linux_amd64/** — so the bytes that compiled it are unchanged. Look at flakiness or box load, not at the named sha; the bisect is unsound here and has been skipped.

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: lib-test#src:test/cmath_integral_family.c at 2749b12c2e93 in step 2/2, tools/expect_same.sh cmath_integral_family "$(/tmp/cmath_integral_family)" "$(printf 'fabs(-0)=+0\ntrunc(-0.5)=-0\nroun… (auto-filed by twatch)

Repro

tools/testmgr.py --tier full --job 'lib-test#src:test/cmath_integral_family.c' at 2749b12c2e93b397f6e384a6c05176831c9378fa

Range

The named sha 2749b12c2e93 CANNOT 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; the cause is somewhere below it.

bad 2749b12c2e93, last good 08b0f50df2ac, 1 observable commit(s) in range (it builds with $(PXX_STABLE), so compiler/ commits cannot have caused it and are dropped; pin moves, lib/ and test/ are kept) — the watcher narrows this by idle bisect.

Log tail

Segmentation fault (core dumped)
(tail)
ok: /tmp/testmgr-scratch-2058534/cmath_integral_family  [code=405272B  data=13512B  bss=73344B  procs=936]
Segmentation fault (core dumped)
expect_same: MISMATCH [cmath_integral_family]
--- expected
+++ actual
@@ -1,11 +1 @@
-fabs(-0)=+0
-trunc(-0.5)=-0
-round(-0)=-0
-rint(-0.5)=-0
-frexp(-0)=-0 e=0
-modf(-1) fr=-0 ip=-1
-trunc(1e300)=+1e+300
-round(-1e300)=-1e+300
-modf(1e300) fr=+0 ip=+1e+300
-round(0.49999999999999994)=+0
-frexp(inf)=+inf
+

Stub ticket: signal only. Track T agent (face 2) enriches or a dev track takes it from the repro line.

Log