ACPI error on Compaq nc6220, FreeBSD 7.0

[Denis]

On 9/24/07, Nate Lawson <nate at root.org> wrote:
> Roman Pavlik wrote:
> > On Sun, Sep 23, 2007 at 10:57:20AM +0400, Denis wrote:
> > I've seen similar issue with ACPI on my HP 6710b. Escape to debug and
> > return doesn't help. Sometimes helps disconecting AC line. The workaround
> > is comment out the following line in GENERIC:
> >  #options     PREEMPTION              # Enable kernel thread preemption
> >  #options     ADAPTIVE_GIANT          # Giant mutex is adaptive.
> >
> > Rebuild kernel, reinstall, reboot.

Thank you, Roman. I rebuild kernel and it helps. And disconecting AC
line seems to help too (but tried only once)

> Jung-uk Kim's global lock patch may be the solution.  We're trying to
> get this stuff committed but things are slow due to the freeze for 7.0.
>  You can't have too many patches floating around.

Nate, if you mean this patch -
http://people.freebsd.org/~jkim/acpica/OsdSynch.diff - I tried it, but
without luck.

Best regards, Denis