illumos gate

Actually under load, it's still not long enough. Instead, we'll just make badseg only test the first 512 selectors, that's probably fine.

git commit a81035424b8f58c433af07a106f89ab5e28c969c

commit  a81035424b8f58c433af07a106f89ab5e28c969c
Author: John Levon <john.levon@joyent.com>
Date:   2019-10-22T15:19:32.000Z

    11841 badseg test times out
    Reviewed by: Robert Mustacchi <rm@fingolfin.org>
    Approved by: Dan McDonald <danmcd@joyent.com>