Could it be that non-maskable interrupts (NMI) gets slow to interrupt where runqueues are very busy due to some application processes running on CPUs with interrupts disabled?

Solution Unverified - Updated -

Issue

  • Could it be that non-maskable interrupts (NMI) gets slow to interrupt where runqueues are very busy due to some application processes running on CPUs with interrupts disabled?

Environment

  • Red Hat Enterprise Linux 7

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