Re: ACPI hangs X-Windows with nForce chipset

[Arndt Schoenewald <abs-SA7OhAOe25xnNxvc45mVi0K323yFvGpRdefyYXQ/eNw@public.gmane.org>]

Hi James!

On Sat, Jan 04, 2003 at 12:38:55AM -0800, James Joseph wrote:
> Hi Arndt,
> First of all, thanx for such a prompt reply.  With 2.4.20 and
> acpi-20021212 patch, the system works with APIC disabled from BIOS!
> X-Windows and KDE is stable. My system was already stable in text-mode
> (run level 3).The errors which i obtained before are still there:-
> 
> pci_bind-0191 [05] acpi_pci_bind         : Device 00:00:04.00 not present in PCI namespace
> (Anyone know what the above means?!)

I have one of these, too; I do not remember what they mean, but they are
typically harmless. Mine does not cause any problems.

> and a series of AE_AML_BUFFER_LIMIT conditions. (Is there anyway to
> increase the 8 * (HOST BUFFER size) from 48 to 56?, and will that
> solve the problem?)

I have no idea.

> It seems that the problem is when IO-APIC is used for IRQ routing.  I
> greped /usr/src/linux*/drivers/acpi for AE_AML_BUFFER_LIMIT, and  it
> seems (from dispatcher/dsopcode.c, line 496, in function
> Acpi_ds_init_buffer_field(...):-
> 
> The Host buffer length, buffer_desc->buffer.length = 6, and if it was
> 7, it should work.(in my case) Is it possible to increase that buffer,
> something tells me it isn't as simple as :-
> 
> buffer_desc->buffer.length = 7;         :)
> 
> Please understand that i know nothing about what i am talking about
> here, so anyone reading this should have a high stupidity tolerance!
> Please help if there is an easy fix to the above.

The expert for PCI IRQ routing stuff on this list is Dominik Brodowski
<devel-JhLEnvuH02M@public.gmane.org>. Dominik, are you listening?!

Greetings,
Arndt


> --- Arndt Schoenewald <abs-SA7OhAOe25xnNxvc45mVi0K323yFvGpRdefyYXQ/eNw@public.gmane.org> wrote:
> > Hi James,
> > 
> > does your system work without APIC and IO-APIC support enabled in
> > the kernel, or with APIC support being turned off in the BIOS?
> > 
> > (I have a SiS650 based machine with a MS-6335E mainboard which will
> > only boot with either one of the above workarounds. It seems that
> > the support for APICs and/or IO-APICs is still not 100% bugfree.)
> > 
> > The "Spurious 8259A interrupt : IRQ7" messages appear on many
> > machines, but seem to be harmless. I don't know what causes them.
> > 
> > Good luck,
> > Arndt

-- 
Arndt Schönewald <abs-SA7OhAOe25xnNxvc45mVi0K323yFvGpRdefyYXQ/eNw@public.gmane.org>, Software Developer
Quelltext AG (http://www.quelltext-ag.de), Dortmund, Germany


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