DF-2831 stock-kernel (INVARIANTS #0, Thu Jul 2 06:02:54 UTC 2026) runs
======================================================================

[stock, first session, dual-disk churn]
ANOMALY iter 113..140: swapinfo says 16384 blocks, expected 4096 (repeated)
  [incore] nparts=16 total=4096000 'a'=65536/2097152 (= 4096 512-blocks)
RESULT2 iters=2000 ok_correct=1794 ok_WRONG_SIZE=206 size_read_fail=0 swapon_err=0
[hammer vn0] 193225 reprobes (193225 ok)
[hammer vn1] 193082 reprobes (193082 ok)

[stock, vn0-hammer-only]
ANOMALY iter 91..140: swapinfo says 16384 blocks, expected 4096 (repeated)
RESULT2 iters=2000 ok_correct=1715 ok_WRONG_SIZE=285 size_read_fail=0 swapon_err=0
[hammer vn0] 434481 reprobes (434481 ok)

[stock, vn0-hammer-only, with same-instant in-core label probe]
ANOMALY iter 35: swapinfo says 16384 blocks, expected 4096
  [incore] nparts=16 total=4096000 'a'=65536/2097152 (= 4096 512-blocks)
  ... (9 more identical anomaly+incore pairs)
RESULT2 iters=1500 ok_correct=1256 ok_WRONG_SIZE=244 size_read_fail=0 swapon_err=0
[hammer vn0] 295680 reprobes (295680 ok)

[stock, errno-only racer, no size check]
vn0-hammer-only : RESULT iters=3000 ok=3000 all errors 0  (74433 reprobes)
control no hammer: RESULT iters=3000 ok=3000 all errors 0

[stock, FRESH vm.sh reset with-src — reproducibility]
run.1 : RESULT2 iters=2000 ok_correct=1723 ok_WRONG_SIZE=277 size_read_fail=0 swapon_err=0
        (hammer 305542 reprobes)
run.2 : RESULT2 iters=2000 ok_correct=1875 ok_WRONG_SIZE=125 size_read_fail=0 swapon_err=0
        (hammer 264585 reprobes)
control: RESULT iters=2000 ok=2000 ENXIO=0 EBUSY=0 ENOENT=0 EINVAL=0 other=0