Broken APIC on my laptop or bug in FreeBSD?

[Alexandre "Sunny" Kovalenko]

On Sun, 2008-07-20 at 01:33 +0300, Giorgos Keramidas wrote:
> On Sat, 19 Jul 2008 17:03:08 -0400, "Alexandre \"Sunny\" Kovalenko" <gaijin.k at gmail.com> wrote:
> > On Thu, 2008-07-17 at 21:20 +0300, Giorgos Keramidas wrote:
> >> After booting with the APIC enabled, I found out that:
> >>
> >>   * In single user mode, after `boot -sv', I can keep working without
> >>     any major slow down.
> >>
> >>   * When I exit single user mode, and a few of the rc.d startup scripts
> >>     run, the laptop becomes progressively slower, and eventually crawls
> >>     to an unusable state.  I can almost complete logging in as `root' in
> >>     ttyv0 but only if I keep furiously moving the mouse around.  If I
> >>     don't move the mouse at all, the typed characters may never actually
> >>     appear on ttyv0.
> >
> > Are you by any chance using cx_lowest="C3" (or "LOW") in your rc.conf? I
> > have seen these symptoms (including mouse inducement of the typed
> > characters) when cpu0 on my laptop went to C3. Nowadays I have C3 on
> > cpu1 and C2 on cpu0 and life is good. Then again, I am running RELENG_7
> > (which AFAICR was 7-CURRENT at the time), so YMMV.
> 
> Ah, good point.  I have indeed performance_cx_lowest="LOW" in rc.conf.
> 
> I'll remove that and try again with the APIC enabled...
> 
And here is more verbose description of what I have experienced, so you
can decide for yourself, whether is is similar or not:

http://www.freebsd.org/cgi/getmsg.cgi?fetch=90726+93671
+/usr/local/www/db/text/2008/freebsd-acpi/20080224.freebsd-acpi

-- 
Alexandre "Sunny" Kovalenko (Олександр Коваленко)