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

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236922

--- Comment #52 from John Hartley <drum at graphica.com.au> ---
(In reply to Tommy P from comment #51)

Hi Tommy,

I have now done production update of one of my stranded 11.2 machines.

I used strategy:

0) Do freebsd-update -r 12.1-RELEASE upgrade / install followed by rebuild of
kernel with "dev netmap" disabled in GENERIC.

The combination of slow update download (due to going from 11.2 -> 12.1) need
to rebuild kernel and using postmaster to re-build ports meant the entire
process took around 6 hours. This was for machine with: bind, mysql & apache.
Which is about as complicated as my FreeBSD VMs get.

My other FreeBSD machines are dedicated to running single application: bind,
apache/php or postgresql. The only one which is likely to problematic is the
postgresql machine, as I don't want database to be unvailable for a long time
waiting kernel to rebuild, so will handle this last.

Agree it is nice to have LTS stability, but I ended up where I am am due to
needed some new features / fixes in QEMU / KVM hosting and related utilities.
So looking forward to Ubuntu 20.04 which should be stable and meet my needs.

For FreeBSD Releases & QEMU / KVM Testing:

Having some repeatable test process in place to validate VirtIO against: 1
release back, current and 1 release forward to ensure that things keep working
correctly.

I believe this and the networking QEMU / KVM thread has been very helpful in
finding source of issues, fixes and work arounds.

Thanks you.


Cheers,


John Hartley.

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