Re: [Fwd: Re: [PROBLEM] 2.6.3-rc1: still no suspend/resume on Centrino notebook (contains agp, lapic, swsusp)]

["Georg C. F. Greve" <greve-mXXj517/zsQ@public.gmane.org>]

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 || On Wed, 11 Feb 2004 11:04:55 +0800
 || "Yu, Luming" <luming.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote: 

 >> Right now it appears to be a kernel issue, as my ASUS M2N
 >> occasionally booted with APIC&ACPI just fine -- but not the 2.6.x
 >> kernels with the exception of 2.6.2-rc2, I think.

 yl> To issue of booting hang with APIC &ACPI, please verify
 yl> http://bugzilla.kernel.org/attachment.cgi?id=1257&action=view can
 yl> help. Maybe we need to figure out what's wrong with the SMM &
 yl> APIC timer.

Just checked this, compiled a 2.6.2 with ACPI 20040116 + the patch
above. That patch rejects on arch/i386/kernel/apic.c because the ACPI
patch (I believe) contains a half-fix for the issue, so the setup
routine looks like

 ver = GET_APIC_VERSION(apic_read(APIC_LVR));
 lvtt_value = APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
 if (!APIC_INTEGRATED(ver))
    lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV);
 apic_write_around(APIC_LVTT, lvtt_value);

the patch applies fine to drivers/acpi/bus.c, which is apparently
missing in the ACPI 20040116 patch.

When booting the machine with lapic enabled, the machine boots (!) and
dmesg shows the "Found and enabled local APIC!" "Using local APIC
timer interrupts." "calibrating APIC timer... [...]" messages.

Of course, pressing Fn+F8 (switch CRT/LCD display) makes me hit

 http://bugzilla.kernel.org/show_bug.cgi?id=1963
 http://bugzilla.kernel.org/show_bug.cgi?id=1890

and so the machine crashes hard & instantly, followed by reboot.

Unless I want an "instant crash" key, I guess I better leave LAPIC off
for now. .-)

Regards,
Georg

-- 
Georg C. F. Greve                                       <greve-mXXj517/zsQ@public.gmane.org>
Free Software Foundation Europe	                 (http://fsfeurope.org)
Brave GNU World	                           (http://brave-gnu-world.org)

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