Request for VIMAGE testing in 11.0-ALPHA6 and later

Hi,

during the last weeks and months a lot of changes went into the tree to
allow a top-to-bottom network stack teardown to stabilize VNET
shutdown and plug some memory leaks.

In addition some missing parts were virtualised or the virtualisation
was fixed, e.g., pf and ipfilter, ipfw log interface.

I have done some testing and stress testing but it's impossible to catch 
all combinations and setups or even options.  So once 11.0-ALPHA6 is
out please do test (or if you want to do so now r302302 or later).

These changes are only and will only be in FreeBSD 11 for the time being.

You will still need to compile your own kernel;  GENERIC will not have
VIMAGE enabled for 11.0 as that requires at least a performance
analysis (due to extra layer of indirection).   It will also still
print the "experimental" feature line, as we do not want to commit to
KPI/KBI or other things yet and we feel more testing would be good.
I would advise to start testing on dedicated test-systems and not
necessarily production servers but obviously that is your choice.

Also if you are using ports that bring their own ifnet interfaces and
you are experiencing problems please let us know.

If you find problems please file a bug report and make sure to set
"vimage" in the Keywords field but feel also free to post to
freebsd-virtualisation_at_ which I'll be monitoring.

Thanks a lot to everyone!

Bjoern

-- 
Bjoern A. Zeeb                                                     r15:7