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Paulus SchoutsenandClaude Opus 4.8
bec9b1cf91
Two paths could hang HA shutdown or wedge a sandbox forever:
- stop() spawn-in-progress race: a stop() that landed inside _spawn read
self._process as None, terminated nothing, then awaited the supervisor
forever while the freshly-spawned healthy child ran unsupervised. Fix:
a post-spawn _stopping check in _run_one_{stdio,unix} kills the child
stop() missed, and stop()'s await is bounded with a SIGKILL+cancel
backstop. Terminate logic is extracted into a shared _terminate helper.
- Respawn had no ready-timeout: ready_timeout was only applied in the
first start(). _supervise_until_exit now bounds the ready handshake on
every attempt; a child that opens its channel but never signals ready
is killed and counts against the restart budget instead of leaving the
sandbox 'starting' forever.
Also: ensure_started no longer hands back a 'starting' zombie — it awaits
readiness (bounded) via the new async_wait_until_ready and raises
SandboxFailedError if the in-flight spawn never becomes running.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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