rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

[Koornstra, Reinoud]

Hi Everyone,

RC8 didn't include from Matthew Garret.
Will the next version contain this patch?
Kind Regards,

Reinoud.

Re: rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

[Len Brown]

> RC8 didn't include from Matthew Garret.
> Will the next version contain this patch?

nope.

That patch was based on a guess about what Windows does.
R8 isn't a time to patch Linux behaviour on all machines
based on speculation about what Windows does.

The "regression" is that we print an an error message
that we didn't used to print.  If we have to do anything
in rc8, we'd delete that warning message for now.

thanks,
Len Brown, Intel Open Source Technology Center

RE: rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

[Koornstra, Reinoud]

What can I do to help out in this?
I could install windows on this machine as well, but I guess you'd be more interested in how this is supported under windows and just seeing that it's supported well under windows doesn't give the info that's needed.
Since it's HP hardware, HP must have provided detailed specs to MS to be able to do this well, that is ......
IF it's being supported well.
Kind Regards,

Reinoud.

-----Original Message-----
From: Len Brown [mailto:lenb@kernel.org]
Sent: Thursday, December 11, 2008 10:40 PM
To: Koornstra, Reinoud
Cc: linux-acpi@vger.kernel.org
Subject: Re: rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

> RC8 didn't include from Matthew Garret.
> Will the next version contain this patch?

nope.

That patch was based on a guess about what Windows does.
R8 isn't a time to patch Linux behaviour on all machines
based on speculation about what Windows does.

The "regression" is that we print an an error message
that we didn't used to print.  If we have to do anything
in rc8, we'd delete that warning message for now.

thanks,
Len Brown, Intel Open Source Technology Center

Re: rc8 didn't include patch (was Re: 2.6.28-rc7 acpi error messages)

[Matthew Garrett]

On Fri, Dec 12, 2008 at 07:22:47PM +0000, Koornstra, Reinoud wrote:
> What can I do to help out in this?
> I could install windows on this machine as well, but I guess you'd be more interested in how this is supported under windows and just seeing that it's supported well under windows doesn't give the info that's needed.
> Since it's HP hardware, HP must have provided detailed specs to MS to be able to do this well, that is ......
> IF it's being supported well.

We need to know the precise behaviour of Windows in this case. It's 
clearly using the 32-bit values by default, but we are currently unsure 
whether it's taking them from the FADT pointed to by the RSDT or the 
XSDT. My patch assumes the latter. I suspect that this is better than 
Linux's current behaviour and so I think we should push it anyway 
(though perhaps not until the 2.6.29 timeframe), but confirmation as to 
its correctness would be helpful.

-- 
Matthew Garrett | mjg59@srcf.ucam.org