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循环锁定管理器可能会导致 ONTAP 9 上的 NFS 中断或系统崩溃

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适用场景

  • ONTAP 9
  • NFS

问题描述

  • 客户端看到 NFSv4 挂载失败； SetclientID 操作失败，并显示 nfs4err_delay 。
  • 系统崩溃，并显示类似于以下内容的崩溃字符串： 
    • Panic string: process on cpu19 hung (wafl_exempt12) for 5001 milliseconds!
  • 锁定管理器中引入了一个缺陷，可通过 qtree 创建操作，禁用 oplock 操作，聚合重新定位， sendhome 操作，卷移动， 节点关闭以及在 ONTAP 升级期间。 
  • 这包括升级到存在修复程序的 ONTAP 版本。
  • 锁定管理器将进入锁定恢复环路，该环路会从资源系统中启动，直到：
    • NFS 服务停止响应客户端或
    • 系统崩溃
  • 错误1168841 正在对此进行跟踪

 

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