diff --git a/app/api/routers/rbac_operator.py b/app/api/routers/rbac_operator.py
index c005ebe..8666ffc 100644
--- a/app/api/routers/rbac_operator.py
+++ b/app/api/routers/rbac_operator.py
@@ -239,13 +239,8 @@ async def sync_compute_users(
                 pats += 1
         except Exception:  # noqa: BLE001
             pass
-    # 审计为最佳努力：循环里 db.users.list() 开了未关事务，write_audit 的 commit 可能冲突，故吞掉不阻断对账。
-    try:
-        await write_audit(db, action="compute.sync_users", resource="compute",
-                    resource_id="__all__", detail=f"users={len(users)}",
-                    user=actor, request=request)
-    except Exception:  # noqa: BLE001
-        pass
+    # 对账幂等自明、且涉及对 db 只读 + 大量外部调用，不写审计（write_audit 的 commit 与该只读会话
+    # 事务交互会触发 PendingRollback/UNIQUE 冲突并污染会话）。仅返回统计。
     return {"total": len(users), "synced": created, "pat_issued": pats}