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什么会导致日志中出现 'sending NMI to all CPUs' 信息？

Solution In Progress - Updated -

Issue

  • 系统出现大量带有调用栈信息的 NMI backtrace for cpu X 信息
  • 另外还有 INFO: rcu_sched detected stalls on CPUs/tasks:
  • 在出现以上信息前会显示 'sending NMI to all CPUs'
  • 什么造成了这些不是由硬件触发的 NMI 信息的原因

Environment

  • Red Hat Enterprise Linux

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