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CONTAP-496717: ONTAP FAS 系统与 Flash Pool 可能会出现间歇性进程挂起中断

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问题描述

  • 具有 Flash Pool 配置的 ONTAP FAS 系统可能会因内部流程死锁而出现间歇性控制器中断。

  • 崩溃特征：
    PANIC: process on cpu16 hung (wafl_exempt01) for 5002 milliseconds! in SK process mpcleaner_thread1 on release 9.16.1P4 (C) on Wed Jul  9 21:14:16 PDT 2025

  • 所涉及的软件例程：
    process hung from possible deadlock between wafl_ssd_alloc_hash_set_reused() and wafl_extent_hash_remove_unique()

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