Re: "Oddness" in head since around r343678 or so

> I run and track stable/11, stable/12, and head (from separate slices --
> no VMs involved) on my laptop; among other things, this permits some
> degree of comparison among them.
> 
> The laptop is configured to run xdm; while running stable/11 or
> stable/12, there's a period of about 5 seconds after xdm's login banner
> shows up before either the mouse or keyboard responds.
> 
> Up to a few days ago, head was the same, but as of about last weekend (I
> think), that period is about 40 seconds while running head.
> 
> I realize that's a little ... lacking in specificity, and I apologize
> for that.  And while I noticed it a few days ago, I hadn't actually
> timed it until this morning.

My addition is going to lack even worse, I have been seeing very
long periods of lag, on this 40 second order, when a bhyve instance
is started.  The interactive response for this time is 0, not
even ^t produces any output.  The prompt comes back almost immediatly
after typing the bhyve command, but that prompt is dead for a
very long time.

I am running 12.0-RELEASE, and see this issue on multiple machines.

> 
> Information, including verbose dmesg.boot copies and a log of uname
> outputs, may be found from the page at
> <http://www.catwhisker.org/~david/FreeBSD/history/>.
> 
> Here's a list of the uname outputs for head over the last several days:
> 
> FreeBSD 13.0-CURRENT #245 r343551M/343551: Tue Jan 29 03:54:46 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #246 r343572M/343572: Wed Jan 30 05:14:44 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #247 r343604M/343604: Thu Jan 31 03:53:37 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #248 r343646M/343658: Fri Feb  1 04:05:45 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #249 r343678M/343678: Sat Feb  2 03:55:23 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #250 r343707M/343711: Sun Feb  3 04:06:08 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #251 r343732M/343741: Mon Feb  4 04:24:07 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #252 r343770M/343771: Tue Feb  5 04:27:38 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #253 r343828M/343834: Wed Feb  6 03:59:36 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> FreeBSD 13.0-CURRENT #254 r343867M/343867: Thu Feb  7 04:52:38 PST 2019     root_at_g1-49.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/CANARY  amd64 1300010
> 
> Peace,
> david
> -- 
> David H. Wolfskill				david_at_catwhisker.org
> "It was like reading a Donald Trump tweet.  It didn't make any sense."
> 
> See http://www.catwhisker.org/~david/publickey.gpg for my public key.

-- 
Rod Grimes                                                 rgrimes_at_freebsd.org