linux-kernel - Re: 2.6.26-rc1 regression: ISA DMA broken (bisected)

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Date:	Sat, 10 May 2008 01:00:44 +0200
From:	Rene Herman <rene.herman@...access.nl>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Takashi Iwai <tiwai@...e.de>, Glauber Costa <gcosta@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Pete Clements <clem@...m.clem-digital.net>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	ALSA devel <alsa-devel@...a-project.org>
Subject: Re: 2.6.26-rc1 regression: ISA DMA broken (bisected)

On 09-05-08 14:28, Ingo Molnar wrote:
> * Rene Herman <rene.herman@...access.nl> wrote:
> 
>> On 09-05-08 08:06, Takashi Iwai wrote:
>>
>>> Thanks for catching it.  Yeah, the patch looks buggy.  We had an
>>> implicit assumption that dev = NULL for ISA devices that require 24bit
>>> DMA.
>>>
>>> How about the patch below?  It's against the latest Linus git tree.
>> Yes, works well. Thank you.
> 
> great, thanks Rene for catching this! Added this line to the patch as 
> well:
> 
>  Tested-by: Rene Herman <rene.herman@...access.nl>

Oh... it was rather significantly in the AM when I posted so I forgot to
mention in the haste to get this out of the way but it was Pete Clements
who reported the regression:

http://www.nabble.com/Lost-Sound-from-2.6.24-to-2.6.25----CS4236-ISA-tc17062547.html

He also tested it, so as long as we're name-mention-flattering around...

And this a good excuse to ask how you edit changelog after the fact. Just
reset/reapply and stuff or is there a "better" way? I fairly frequently
find myself wanting to do just that but it's a bit of a mess when there's
already commits on top.

Rene.

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