Public bug reported:
I'm using MAAS to enable the following kernel flags on install/boot:
iommu=pt intel_iommu=on
in order to be able to passthrough SR-IOV VF functions to KVM guess;
however when these options are enabled, the servers fail to install (see
attached screenshot).
The install eventually fails - it looks like the writes back to one of
the disks starts to fail for some reason.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "DMAR error.png"
https://bugs.launchpad.net/bugs/1641593/+attachment/4777240/+files/DMAR%20error.png
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https://bugs.launchpad.net/bugs/1641593
Title:
unable to enable iommu on HPE Proliant Gen9 server
Status in linux package in Ubuntu:
New
Bug description:
I'm using MAAS to enable the following kernel flags on install/boot:
iommu=pt intel_iommu=on
in order to be able to passthrough SR-IOV VF functions to KVM guess;
however when these options are enabled, the servers fail to install
(see attached screenshot).
The install eventually fails - it looks like the writes back to one of
the disks starts to fail for some reason.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641593/+subscriptions
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