"kernel: dmar: DMAR:[DMA Write] Request device [04:00.1] fault addr 791dc000DMAR:[fault reason 05] PTE Write access is not set" in HP Gen9 servers

Solution Unverified - Updated -

Issue

  • "kernel: dmar: DMAR:[DMA Write] Request device [04:00.1] fault addr 791dc000DMAR:[fault reason 05] PTE Write access is not set" in HP Gen9 servers

    kernel: dmar: DRHD: handling fault status reg 2
kernel: dmar: DMAR:[DMA Write] Request device [04:00.1] fault addr 791dc000 DMAR:[fault reason 05] PTE Write access is not set
kernel: dmar: DMAR:[DMA Write] Request device [04:00.1] fault addr 791dc000 DMAR:[fault reason 05] PTE Write access is not set

    According to the messages, Broadcom NIC relates to the messages.

         44 04:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM57810 10 Gigabit Ethernet (rev 10)

    The system boots with intel_iommu=on kernel boot parameter.

Environment

  • Red Hat Enterprise Linux 7
  • kernel boot with 'intel_iommu=on'
  • HP Gen9-series servers

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content