test(raft-drive-async): receiver-side dispatch liveness integration tests (task 3.4b)

With the dispatch flags flipped ON in-test, prove the three receiver-side
liveness properties (production defaults stay OFF):

- P1: while a snapshot (and config-push) transfer is parked in flight on the
  slow lane, another endpoint's peer-control message is still processed
  promptly on the vtask pool (different thread), with the transfer still
  parked — the offloaded transfer does not block the drive path.
- P2: a peer-control ack (classified VTASK_LIVENESS) runs promptly even while
  the pool is saturated to the LivenessAdmission reservation boundary with
  REQ_BLOCK tasks (one more REQ_BLOCK fast-rejects with -E_XCE_NOT_READY,
  proving real saturation). Narrowed to the liveness-dispatch-under-saturation
  assertion; commit-advance itself is covered by the commit-engine tests.
- P3: while one endpoint's peer-control body is parked (holding a worker + that
  ep busy), another endpoint's body runs concurrently on a different worker —
  per-endpoint FIFO does not serialize across endpoints.

All deterministic (cond-var gates, bounded polls). Fixed a flaky teardown-race
hang (bug-1224): the tests released a parked vtask body then immediately called
the cancel-based vtaskmgr_fini while the just-released body was still unwinding
(P2's REQ_BLOCK bodies racing blk_lock teardown the worst). Fix adds end-of-body
completion counters polled to the full expected count before fini, so every
pool body has fully returned (worker idle) before the cancel. slowlane_fini is
graceful (join) so the lane side was already safe.

Verified: 5/5 deterministic isolated runs; full controller suite EXIT=0;
ASan-clean. Completes task 3.4 (3.4a UAF fix + 3.4b tests); the production
flag-flip remains deferred to after the 4.1 partition soak + 4.2 regression
sweep.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S6fDCtXkkEgupu7rUah1y2
This commit is contained in:
Rongsong Shen 2026-06-27 00:36:22 +00:00
parent 6d510d8cf4
commit d2830ce514
6 changed files with 693 additions and 2 deletions

View file

@ -3516,3 +3516,28 @@
| 10:35 | Edited src/controller/ha.c | modified NOTE() | ~147 |
| 10:36 | Edited .kiro/specs/raft-drive-async/tasks.md | 1→2 lines | ~121 |
| 10:38 | raft-drive-async 3.4a: bug-1197 endpoint-quiescence (deferred teardown-vtask + RCU dispatch_inflight drain); flags STILL OFF | netio.h, netio.c, ha.c, ha.h, test_ha_vep_teardown.c | xcelib 282/0, ctrl EXIT=0, 5 vep tests ASan-clean, cpp-review GO race-free | ~75k |
| 10:44 | Created src/controller/testsuite/test_ha_dispatch_integration.c | — | ~6396 |
| 10:44 | Edited src/controller/testsuite/controller_test.c | modified setUp() | ~32 |
| 10:44 | Edited src/controller/testsuite/controller_test.c | 3→4 lines | ~26 |
| 10:44 | Edited src/controller/meson.build | 2→3 lines | ~31 |
## Session: 2026-06-27 17:10
| Time | Action | File(s) | Outcome | ~Tokens |
|------|--------|---------|---------|--------|
## Session: 2026-06-27 17:10
| Time | Action | File(s) | Outcome | ~Tokens |
|------|--------|---------|---------|--------|
| 17:29 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | modified pc_probe() | ~62 |
| 17:29 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | modified snap_probe() | ~61 |
| 17:33 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | fprintf() → vtaskmgr_fini() | ~207 |
| 17:33 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | 5→3 lines | ~20 |
| 17:33 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | modified block_task_entry() | ~212 |
| 17:33 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | 2→3 lines | ~28 |
| 17:33 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | expanded (+7 lines) | ~193 |
| 17:34 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | 4→7 lines | ~123 |
| 17:34 | Edited src/controller/testsuite/test_ha_dispatch_integration.c | 5→9 lines | ~144 |
| 17:25 | raft-drive-async 3.4b: receiver-side liveness integration tests (P1 transfer-non-block, P2 ack-under-saturation, P3 cross-ep concurrency); fixed flaky teardown-race hang | test_ha_dispatch_integration.c, controller_test.c, meson.build | 4 P-tests + 5 vep PASS, full suite EXIT=0, 5/5 deterministic | ~120k |
| 17:36 | Edited .kiro/specs/raft-drive-async/tasks.md | 2→4 lines | ~366 |