[Bug 236922] Virtio fails as QEMU-KVM guest with Q35 chipset on Ubuntu 18.04.2 LTS

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 09 Jul 2021 23:44:36 UTC

Jamie Landeg-Jones <jamie@catflap.org> changed:

           What    |Removed                     |Added
                 CC|                            |jamie@catflap.org

--- Comment #72 from Jamie Landeg-Jones <jamie@catflap.org> ---
I recently tried to install 13.0-RELEASE and 13.0-STABLE (20210701) on a kvm
host, and it hangs the same way described above with q35, but works with

I don't have access to the host (I'm a VM customer) 

I can get a prompt from the q35 instance by setting in the loader via the boot

set hw.ata.ata_dma=0
set hw.ata.atapi_dma=0

However, things are weird (The "Install" menu button doesn't do anything, but
"Shell" does)

And "reboot" completely hangs after saying all disks synced.

I've attached kenv output. Anything else that would help?

Cheers, Jamie

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