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

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-Rd3uoDiDeHXJKwlM9GxbOw@public.gmane.org] 
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 
[off-list ref] 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
[off-list ref] wrote:

quoted

Hi!

quoted

quoted

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
:-(.

quoted

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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