ACPI

[Josef Karthauser]

[Moved to the ACPI list]

On Tue, Oct 26, 2004 at 05:42:34PM -0700, Nate Lawson wrote:
> M. Warner Losh wrote:
> >
> >: BTW, what's the status with ACPI at the moment?  It is only me who finds
> >: it very broken at the moment?  I don't even get 'shutdown -p' working
> >: any more.  Should I make a bug report or it is known about?
> >
> >More info likely is needed.  ACPI works for me for shutdown -p on my
> >machines.
> 
> There's only one known issue with shutdown that shouldn't trigger a 
> panic.  If the shutdown process runs on a secondary processor (AP), some 
> chipsets don't honor the write and so the shutdown attempt fails (and 
> you get the normal "hit any key to reboot" message).  The fix is to run 
> our shutdown code on the main (BSP) processor only.  Peter suggested 
> changing boot() to do sched_pin(curthread, 0) (or whatever the right API 
> is).  This would need a lot of testing and someone with thread awareness 
> to be sure this doesn't screw up panics, scheduler is alive that late in 
> runtime, etc.
> 

Ok, this is a strange one.  I've got a Dell Inspiron 5000e.  Recently
something happened to ACPI and now 'shutdown -p' doesn't switch the
power off anymore.

Looking at dmesg I see:


    Copyright (c) 1992-2004 The FreeBSD Project.
    Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	    The Regents of the University of California. All rights
    reserved.
    FreeBSD 6.0-CURRENT #160: Mon Oct 18 08:20:15 BST 2004
	joe at genius.tao.org.uk:/stable/usr/obj/current/usr/src/sys/GENIUS
    link_elf: symbol db_readline undefined
->  KLD file acpi.ko - could not finalize loading
    Timecounter "i8254" frequency 1193182 Hz quality 0
    CPU: Intel Pentium III (696.97-MHz 686-class CPU)
      Origin = "GenuineIntel"  Id = 0x686  Stepping = 6
      Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PA
    T,PSE36,MMX,FXSR,SSE>

Is is that acpi isn't loading properly?


What is very strange is that for the first time suspend/resume appears
to be working.  The first time I shut the lid the machine stays on and
just the screen powers down, but the second time (and subsequent times)
the machine completely suspends including the fans and harddrive.

Is it the bios that is doing this?  It's never worked before - I'd say
that you guys have fixed ACPI and that's why it is working, but why does
-p not work then?

Joe
-- 
Josef Karthauser (joe at tao.org.uk)	       http://www.josef-k.net/
FreeBSD (cvs meister, admin and hacker)     http://www.uk.FreeBSD.org/
Physics Particle Theory (student)   http://www.pact.cpes.sussex.ac.uk/
================ An eclectic mix of fact and theory. =================
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