Why CPUs handle non-maskable interrupt (NMI) during panic processing

Solution Verified - Updated -

Issue

When analyzing RHEL panic crash dumps of multi-processor systems it could be confusing to see almost all processors crashing with NMI (Non-Maskable Interrupt).

Environment

  • Red Hat Enterprise Linux 5, 6, 7

  • Architecture:

    • x86
    • x86_64

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