---
model: openai/gpt-6.1-sol
service: opencode
timestamp: 2026-09-29T22:22:13Z
git_ref: 68e9c49f
scope: tests
substantive: true
diff_cmd: git diff 68e9c49f -- examples/advanced_faults/ipc_stalls.py tests/test_ipc_stalls.py
---

## Human instruction

> sounds good lfg!

Purpose summary: the user approved the shielded-child/stalled-IPC
followup after the six-case draft was committed. This is a summary
of the surrounding context, not a verbatim implementation prompt.

## Generated code pointers

> `git diff 68e9c49f -- examples/advanced_faults/ipc_stalls.py`

Added `stalled_context_with_shielded_peer`. `probe_peer()` enters
its child-only inner shield before `Context.started()`, publishes
shield readiness, and observes `Actor._cancel_called` plus pending
outer `Context._scope` cancellation while its own shield remains
uncancelled. It then remains blocked until runtime hard-killing.
`root_main()` parks both OOB context directions and completes a
separate subactor control RPC before publishing root readiness.

> `git diff 68e9c49f -- tests/test_ipc_stalls.py`

Added the seventh parameter and explicit CASE documentation.
Require shield entry before SIGINT, child-side pending-cancel
evidence afterward, finite cancel-ack timeout diagnostics, runtime
hard-reap diagnostics, SIGKILL status, and existing parent waitpid
proof. Watchdog rescue cannot satisfy the assertions.

## Unedited verification output

```text
.......                                                                  [100%]
7 passed in 14.21s
```

```text
.                                                                        [100%]
=============================== warnings summary ===============================
../ib_disconnect_cleanup/py313/lib/python3.13/site-packages/_pytest/config/__init__.py:864
  /home/goodboy/repos/tractor/wkts/ib_disconnect_cleanup/py313/lib/python3.13/site-packages/_pytest/config/__init__.py:864: PytestAssertRewriteWarning: Module already imported so cannot be rewritten; tractor._testing.pytest
    self.import_plugin(arg, consider_entry_points=True)

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
1 passed, 1 warning in 2.65s
```