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Vendor image that needs the machine type to be Q35?

  • 8 September 2021
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We are running an image from HPE Aruba for a Mobility Master that crashes daily. The error is an IRQ interrupt:

User: [14730.377720] irq 27: nobody cared (try booting with the "irqpoll" option) [14730.378230] handlers: [14730.378461] [<ffffffff813be5d0>] vring_interrupt [14730.378717] Disbling IRQ #27

I’ve been directed by the community that there is a KVM fix for this by changing the machine type to Q35. I can see in the acli documentation there are settings for machine type but I can’t seem to find a list of acceptable settings that I could use there. I was hoping to perhaps create a VM through the acli with this already set or perhaps update a VM (is this bad?)

Perhaps it would look something like this:

acli vm.update machine_type="pc-q35"

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Best answer by Primzy 9 September 2021, 14:50

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Based on this article: https://portal.nutanix.com/page/documents/kbs/details?targetId=kA00e000000bslvCAA

 

I guess you can set machine type with following command:

acli vm.update machine_type="q35"

I suggest you to turn the VM off before this change.

Awesome, that seemed to work. I was surprised to see it turn on after changing the type but all seems good. I had to remove the IDE CD rom and our command needs the VM name added, but other than that - yes all good

acli vm.update <vm-name> machine_type=”q35”