Thanks for the update. That would make it difficult to know if this is a regression, or if this bug always existed.
It might be worth while testing the latest Xenial kernel in -proposed: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/11278866 The 4.9-rc7 kernel is now also available, and might be worth testing. It is available from: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc7/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1641593 Title: unable to enable iommu on HPE Proliant Gen9 server Status in linux package in Ubuntu: Confirmed 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. Servers are targeted with Xenial and the release 4.4 kernel (no HWE). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1641593/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
