bug: turn_coordinator eviction stalls when oldest lock is held

[G9000]

Summary

turn_coordinator.py:39-43 — the LRU eviction loop breaks at the first locked entry. If the oldest thread lock is held (long-running turn), no eviction happens even if many newer unlocked entries exist. With 512+ concurrent threads and the oldest always busy, the dict grows beyond _MAX_THREAD_LOCKS.

Fix

Continue scanning past locked entries:

while len(_thread_locks) > _MAX_THREAD_LOCKS:
    evicted = False
    for k, v in list(_thread_locks.items()):
        if not v.locked():
            _thread_locks.pop(k)
            evicted = True
            break
    if not evicted:
        break

Files

• apps/server/src/anima_server/services/agent/turn_coordinator.py:39-43

Severity

Low — memory growth beyond intended cap under extreme concurrency.