Public bug reported:
SR-IOV does not work in Ubuntu Server 18.04.2 LTS, once the HWE kernel
(4.18.0-15 generic x86_64)) has been installed.
Environment:
Windows Server 2019
Fresh Hyper-V generation 2 VM (configuration version 9.0)
SR-IOV enabled on the virtual switch (Intel I350-T2 physical network adapter)
SR-IOV enabled on the virtual network card of the VM
Steps to reproduce:
Install Ubuntu Server 18.04.2 LTS
Verify SR-IOV is enabled in the Networking tab of the Hyper-V manager
Install the latest HWE kernel:
sudo apt-get install --install-recommends linux-virtual-hwe-18.04
sudo apt install --install-recommends linux-tools-virtual-hwe-18.04
linux-cloud-tools-virtual-hwe-18.04
Reboot
Check SR-IOV status in the Networking tab of the Hyper-V manager. It will now
show status degraded (SR-IOV not operational)
** Affects: linux-hwe (Ubuntu)
Importance: Undecided
Status: New
** Tags: 4.18.0-15 generic sr-iov
** Attachment added: "sr iov.png"
https://bugs.launchpad.net/bugs/1818400/+attachment/5243047/+files/sr%20iov.png
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https://bugs.launchpad.net/bugs/1818400
Title:
SR-IOV broken in HWE 4.18.0-15 generic
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