CONAP-245852：节点关闭期间SP扩展串行端口缓冲区消耗可能导致意外重新启动
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问题描述
在重新启动期间、节点意外重新启动、并显示以下错误：
[shutdown s耗 时超过930秒in Process nodedogdogs on 9.12.1P2 (C)]