Re: ACPI on Averatec 2370

[Cal Peake <cp@absolutedigital.net>]

On Sun, 29 Jul 2007, Gabriel C wrote:

> Frank Hale wrote:
> [ added  linux-acpi to CC ]
> > I have an Averatec 2370 laptop with the nVidia MCP51. With kernel
> > 2.6.20 I had no issues with ACPI however with 2.6.21 and higher the
> > kernel will hang on boot until I press the suspend button or the power
> > button in which case the kernel wakes up and finishes the boot
> > process. Including the following support only causes the issue:
> > 
> >  [*] ACPI Support
> > 
> > What I mean by that is every ACPI option has been deactivated and only
> > ACPI support checked. The boot process with 2.6.21 and higher hangs at
> > the point where the Scheduler is being registered.
> > 
> > io scheduler cfq registered (default)
> > 
> > If I allow it to sit there it never comes back to life and finishes
> > booting. If I press the power or suspend button it will finish booting
> > as expected.
> > 
> > I've scoured google for quite a while but cannot find any relevant
> > information pertaining to this issue. For now I've disabled ACPI
> > altogether.

Frank, thanks for the tip about 2.6.20 being good, it gave me a nice place 
to start bisecting from.

Thomas, Ingo,

Regarding the issue described above that Frank and I are having, I've 
narrowed it down to commit e9e2cdb4[1]: [PATCH] clockevents: i386 drivers

About our systems:
  Averatec 2370/2371 Laptop
    AMD Turion 64 X2 TL-50/TL-52
    nVidia MCP51 chipset

Here a small matrix of my tests:

2.6.20.15 SMP		: OK
2.6.21.5 SMP		: hang
2.6.21.5 UP w/o APIC	: OK
2.6.22.1 UP		: hang
2.6.22.1 UP w/o IO-APIC	: hang
2.6.22.1 UP w/o APIC	: OK
2.6.22.1 SMP		: hang
2.6.22.1 SMP w/o ACPI	: OK

Please let me know if there's anything else I can provide to help.

thanks!
-- 
Cal Peake

[1] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e9e2cdb412412326c4827fc78ba27f410d837e6e