Date: Wed, 11 Nov 2015 06:33:37 -0800 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Wake on LAN broken (probably between r290542 - r290606)? Message-ID: <20151111143337.GN1235@albert.catwhisker.org>
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My build machine ("freebeast") spends most of the time powered off.
One of my "always on" machines has a crontab entry for 23:47 to use
/usr/local/bin/wol (from ports/net/wol) to wake it up in time to do some
periodinc "daily" things, update its local mirror of the SVN repos, and
update it ports working copy; after I've updated stable/10 & head on it,
I set it to boot from the stable/10 slice & power it off -- and the
cycle repeats.
At least, that's what happened with this machine's predecessor for
several years, and with this one since its deployment several months
ago, until yesterday morning.
Yesterday morning, the machine did not power on; I figured someone had
managed to manually power it off (vs. "shutdown -p"), took evasive
action, and resumed normal operations.
Upon a recurrence this morning -- and after the evasive action &
resumption of normal operations, I decided to test a bit. The machine
was last running:
FreeBSD 11.0-CURRENT #1897 r290667M/290668:1100089: Wed Nov 11 04:45:58 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
I manually ran the /sur/local/bin/wol command... and Nothing Happened.
Went over to the machine; no lights. Manualy turned it on (booting
FreeBSD 10.2-STABLE #1851 r290668M/290668:1002501: Wed Nov 11 04:20:05 PST=
2015 root@freebeast.catwhisker.org:/common/S1/obj/usr/src/sys/GENERIC =
amd64
-- just to be clear); once it came up, "shutdown -p now". After seeing
=2E..
acpi0: Powering system off
on serial console, re-issued /usr/local/bin/wol; machine came right up.
OK. So /usr/local/bin/wol itself seems to be working, and freebeast's
hardware also seems OK.
Checking the log of builds for head on that machine, the last several
entries are:
FreeBSD 11.0-CURRENT #1892 r290439M/290439:1100086: Fri Nov 6 05:12:44 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
FreeBSD 11.0-CURRENT #1893 r290486M/290488:1100087: Sat Nov 7 07:48:26 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
FreeBSD 11.0-CURRENT #1894 r290542M/290542:1100089: Sun Nov 8 06:19:02 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
FreeBSD 11.0-CURRENT #1895 r290606M/290609:1100089: Mon Nov 9 04:44:14 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
FreeBSD 11.0-CURRENT #1896 r290647M/290647:1100089: Tue Nov 10 04:37:17 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
FreeBSD 11.0-CURRENT #1897 r290667M/290668:1100089: Wed Nov 11 04:45:58 PS=
T 2015 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/sys/GENERIC=
amd64
and since I'm pretty sure I would have recalled had the "wake on
LAN" failed on Monday (and I don't recall that), it seems likely that
some change made that day (thus, a commit between r290542 - r290606)
is what would have done it.
But a quick perusal of
<https://docs.freebsd.org/mail/current/svn-src-head.html>; doesn't show
anything especially like a "smoking gun" -- to me, anyway.
Can anyone else confirm or refute my observations? Or suggest a
hint? I'll try narrowing it down myself, but I need to do it during
times I'm at home (so I can manually power the machine back up when
it fails to respond to WoL), so it may be a few days before I can
accomplish much that way.
Peace,
david
--=20
David H. Wolfskill david@catwhisker.org
Those who would murder in the name of God or prophet are blasphemous coward=
s.
See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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