Re: ACPI Error: AE_NO_HARDWARE_RESPONSE

From: Nate Lawson <nate_at_root.org>
Date: Sat, 5 Jun 2004 19:40:20 -0700 (PDT)
On Sun, 6 Jun 2004 j.e.drews_at_att.net wrote:
>  I have followed your instructions and the output of dmesg is here:
>
> http://www.silbsd.org/bugreports/acpi.dmesg.txt
>
>  I installed the debug inof in loader.conf and I loaded the acpi.ko with the load command.
>
> partial output of dmesg:
>
> 	The Regents of the University of California. All rights reserved.
> FreeBSD 5.2-CURRENT #0: Sat Jun  5 00:29:09 CDT 2004
>     root_at_notebook.silbsd.org:/usr/obj/usr/src/sys/NOTEBOOK
> Preloaded elf kernel "/boot/kernel/kernel" at 0xc0a61000.
> Preloaded kld "/acpi.ko" at 0xc0a61244.
                 ^^^^^^^

This indicates you didn't copy acpi.ko to / and maybe copied acpi.kld.
Thus there is no debugging output.  If it was acpi.ko, it would be labeled
"elf module" as below:

> Preloaded elf module "/boot/kernel/acpi.ko" at 0xc0a6127c.
                         ^^^^^^^^^^^^^^^^^^^

Since the kld was not the kernel module, your kernel went and loaded the
original acpi.ko from /boot/kernel, which doesn't have debugging enabled.

Please check against the instructions I list again below:

-Nate

> > This is harmless but you can help solve it by recompiling your acpi
> > module:
> >
> > cd /sys/modules/acpi/acpi && make ACPI_DEBUG=1 && cp acpi.ko /
> >
> > Then enable debugging prints by adding this to /boot/loader.conf:
> >
> > debug.acpi.layer="ACPI_POWER"
> > debug.acpi.level="ACPI_LV_OBJECTS ACPI_LV_ALL_EXCEPTIONS"
> >
> > Then reboot, load /acpi.ko at the loader prompt, and send me your full
> > dmesg, including all debug prints and errors.
>
Received on Sat Jun 05 2004 - 17:40:19 UTC

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