RE: [ACPI] Dell i8k was: Re: [2.5.50, ACPI] link error

Moore, Robert
2002-12-11T16:32:43Z

The problem is related to this message:

ACPI-0189: *** Warning: Buffer created with zero length in AML

I have a patch for the oops caused by this, but there may be an additional
underlying problem where the AML is causing a zero length buffer to be
created.

Bob

-----Original Message-----
From: Andrew McGregor [mailto:andrew@indranet.co.nz]
Sent: Tuesday, December 10, 2002 7:45 PM
To: Pavel Machek; Alan Cox
Cc: Grover, Andrew; 'Ducrot Bruno'; Ducrot Bruno; Patrick Mochel; Linux
Kernel Mailing List; ACPI mailing list
Subject: Re: [ACPI] Dell i8k was: Re: [2.5.50, ACPI] link error

Hmm, when I boot 2.5.51 w/ACPI on it with a battery installed, it panics.
By booting without and then inserting the battery, I got the attached oops.
See also the messages in the dmesg output.

Andrew

--On Wednesday, December 11, 2002 09:50:48 +1300 Andrew McGregor
<andrew@indranet.co.nz> wrote:

> I strongly suspect that s4bios will work on this machine, but swsusp
> won't. Why? It's a Dell Inspiron 8000 with an NVidia Geforce2go, and
> until NVidia put pm support in their driver, it's game over for Linux.
> Except that the BIOS knows how to suspend it, so some kernel/driver
> combinations work with APM. I suspect any Geforce2go Dell is the same.
>
> Andrew
>
> --On Tuesday, December 10, 2002 21:40:31 +0100 Pavel Machek
> <pavel@suse.cz> wrote:
>
>> Hi!
>>
>>> > I concur with your pros and cons. This makes me think that if S4BIOS
>>> > support ever gets added, it should get added to 2.4 only.
>>
>> And S4BIOS will never get added to 2.4 since it needs driver model
>> :-(.
>>
>>> That assumes no box exists where S4bios works an S4 doesnt (eg due to
>>> bad tables or "knowing" what other-os does)
>>
>> We have full control over S4 (== swsusp), so we can fix that in most
>> cases.
>>
>> S4BIOS is still little friendlier to the user -- no need to set up
>> swap partition and command line parameter, can't go wrong if you boot
>> without resume=, etc.
>> Pavel
>>
>> --
>> Casualities in World Trade Center: ~3k dead inside the building,
>> cryptography in U.S.A. and free speech in Czech Republic.
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