Why do I see "kernel: do_IRQ: X.Y No irq handler for vector (irq -1)" messages on HP Proliant systems with AMD processors?

Solution Verified - Updated -

Issue

  • Why do I see the following messages on my HP systems with AMD processors?
Sep 23 14:53:57 hostname kernel: do_IRQ: 8.113 No irq handler for vector (irq -1)

Environment

  • Red Hat Enterprise Linux 6.
  • AMD processors.
  • HP iLO firmware 2.12 or earlier.
    or
  • HP iLO firmware 2.15 or later and Virtual Keyboard and Mouse option set to UHCI.

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