{
 "number": 35932,
 "input_hash": "8b7c8ededcccb1ae",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T21:45:29+00:00",
 "provider": "Google AI Studio",
 "stop_reason": "end_turn",
 "usage": {
  "input_tokens": 22083,
  "cache_creation_input_tokens": 0,
  "cache_read_input_tokens": 0,
  "output_tokens": 3100
 },
 "cost_usd": 0.02818725,
 "error": null,
 "result": {
  "display": {
   "goal": [
    "Prevent shutdown assertion crashes and use-after-free when asynchronous IPC calls are in flight."
   ],
   "reviewability": [
    "CI is failing and code depends on upstream libmultiprocess changes."
   ],
   "agreement": [
    "Crickets with no reviews or comments yet."
   ],
   "categories": [
    {
     "name": "ipc",
     "why": [
      "P2 because it resolves a race condition crash where in-flight IPC calls access node state after chainman is freed on shutdown.",
      "Ensures reliable disconnect and teardown handling for external consumers such as IPC mining."
     ]
    }
   ]
  },
  "summary": "Separates connection teardown from destruction in libmultiprocess and introduces a server object tracker to monitor live ProxyServer instances. Updates `ipc::disconnectIncoming` to wait off the event loop until worker threads finish executing in-flight server method bodies before destroying connections and allowing node shutdown to proceed.",
  "problem": "During node shutdown, `Ipc::disconnectIncoming` cancels KJ promises but does not wait for asynchronous method bodies running on worker threads (e.g. `Mining.checkBlock`) to complete. Those calls can dereference freed node state like `chainman`, triggering assertion failures such as `Assert(m_node.chainman)` reported in #35845 and #33387.",
  "discussion": {
   "open_concerns": [],
   "resolved_concerns": [],
   "author_status": "silent since 2026-08-12"
  },
  "reviewability": {
   "state": "Stale",
   "label": "CI failing",
   "reason": "CI is failing, and the author notes that this draft is based on an unmerged upstream PR in bitcoin-core/libmultiprocess#335."
  },
  "agreement": {
   "participants": [],
   "objections": [],
   "support": [],
   "state": "Crickets",
   "summary": "Crickets; no reviews or comments yet.",
   "reason": "The PR was opened as a draft based on upstream libmultiprocess work and has not received reviewer engagement.",
   "evidence": [],
   "model_state": "Crickets",
   "derivation": "no substantive comment either way",
   "corrections": [],
   "thread_read": {
    "state": "Crickets",
    "derived": "Crickets",
    "objections": [],
    "support": [],
    "participants": [],
    "corrections": [],
    "summary": "Crickets: draft PR with no comments from reviewers yet",
    "usage": {
     "input_tokens": 3463,
     "cache_creation_input_tokens": 0,
     "cache_read_input_tokens": 0,
     "output_tokens": 177
    }
   },
   "first_read": {
    "state": "Crickets",
    "model_state": "Crickets",
    "objections": [],
    "support": []
   }
  },
  "dependencies": {
   "depends_on": [],
   "enables": []
  },
  "categories": [
   {
    "name": "ipc",
    "member": true,
    "evidence": "Changes IPC connection shutdown in `src/ipc/capnp/protocol.cpp` and `src/ipc/libmultiprocess/`.",
    "band": "P2",
    "reason_tag": "bug fix",
    "score": 0.65,
    "factors": {
     "security_stability": 2,
     "bug_severity": 2,
     "performance": 0,
     "user_value": 1,
     "leverage": 1
    },
    "rationale": "P2 because it resolves a concrete crash hazard where in-flight IPC calls outlive shutdown and dereference freed node structures. The description cites bug reports #35845 and #33387 found by Antithesis testing, where asynchronous mining calls trigger `assert(m_node.chainman)` during shutdown."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "This PR modifies IPC connection shutdown handling so that disconnectIncoming waits for in-flight server call bodies executing on worker threads to drain before node shutdown continues. This fixes an assertion crash on shutdown reported by Antithesis in #35845 and #33387 where asynchronous mining methods dereference chainman after it has been reset. The PR is a draft with failing CI that depends on upstream changes in bitcoin-core/libmultiprocess#335, and has received no reviews yet."
 },
 "raw_text": null,
 "prompt_hash": "c1bd47c5",
 "second_read_cost_usd": 0.003261
}