Re: git: e779891327b1 - main - sys/power: Sleep type reporting by PM backends

Cy Schubert <Cy.Schubert_at_cschubert.com> wrote on
Date: Thu, 18 Sep 2025 04:59:32 UTC :

> In message <9dc5eff9-3612-4bb8-be96-637bb4257a5f@FreeBSD.org>, Guido Falsi 
> writ
> es:
> > On 9/17/25 22:50, Guido Falsi wrote:
> > > On 9/17/25 11:15, Nuno Teixeira wrote:
> > >>
> > >> Hello Cy,
> > >>
> > >>     One of this series of ACPI commits has broken power management on m
> > y
> > >>     machines.
> > >>     One of which managed to capture a dump from a kernel panic after
> > >>     poweroff(8)
> > >>     was issued.
> > >>
> > >>
> > >> I can confirm same crash on reboot on a Intel laptop, after upgrading 
> > >> from main 2025-09-06 -> 2025-09-16.
> > >>
> > > 
> > > Hi,
> > > 
> > > A me too.
> > > 
> > > Just noticed this while investigating why my machines with head (laptop 
> > > and two desktops) were not switching off anymore.
> > > 
> > > So looks like I'm also experiencing this.
> > > 
> > > All machines behave the same, the almost turns off, monitor turns off, 
> > > but power light stays on.
> > > 
> > > I'm testing reverting commits to see if it goes back to working.
> > > 
> >
> > I can confirm reverting this commit and the previous one "fixes" it.
> >
> > -- 
> > Guido Falsi <madpilot@FreeBSD.org>
> 
> The two reviews to fix this breakage don't address the problem completely.
> 
> I am formally requesting the revert of the four ACPI commits that have 
> caused this regression. Revert them, please.

The above request was apparently not sent to the Author/Committer
of "sys/power: Sleep type reporting by PM backends" ( e779891327b1 )
and related: Aymeric Wibo ( obiwac@FreeBSD.org ) --at least there
is no reference to the name or Email address in the above quoted
text.

So this CC's the author of that and the other commits.

My amd64 context is one of those getting the very late crash
during "shutdown -r now" or "poweroff". (PS2 keyboard use
required, not USB keyboard --but it is too late for dump to
work as well.)

===
Mark Millard
marklmi at yahoo.com