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ESXi host fails with intermittent NMI PSOD on HP ProLiant Gen8 servers (2149043)

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ESXi hosts running 5.5 p10, 6.0 p04, 6.0 U3, or 6.5 GA may fail with a purple diagnostic screen caused by non-maskable-interrupts (NMI) on HPE ProLiant Gen8 Servers.


The root-cause is not yet determined and it is still under investigation by VMware and HPE.

The issue was triggered by a change in ESXi 5.5 p10, 6.0 p04, 6.0 U3 and, 6.5 GA in which ESXi disables the Intel® IOMMU's (aka VT-d) interrupt remapper functionality. In HPE ProLiant Gen8 servers, this change is causing PCI errors which result in the platform generating an NMI and causing the ESXi host to fail with a purple diagnostic screen.


This is a known issue affecting ESXi 5.5 p10, ESXi 6.0 p04, 6.0 U3 and, ESXi 6.5 GA on HPE ProLiant Gen8 servers. This information is also available for reference on the HPE advisory.

Currently, there is no resolution.

To work around this issue, re-enable the Intel® IOMMU interrupt remapper on the ESXi host:
  1. Connect to the ESXi host with an SSH session and root credentials.

  2. Run this command:

    esxcli system settings kernel set --setting=iovDisableIR -v FALSE

  3. Reboot the ESXi host.

  4. Ensure that the iovDisableIR setting is set to FALSE by running this command:

    esxcli system settings kernel list -o iovDisableIR

    For example:

    esxcli system settings kernel list -o iovDisableIR

    Name          Type  Description                                 Configured  Runtime  Default
    ------------  ----  ---------------------------------------     ----------  -------  -------
    iovDisableIR  Bool  Disable Interrupt Routing in the IOMMU...   FALSE       FALSE    TRUE

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  • 16 Ratings