linux-kernel - Re: "ACPI: EC: missing confirmations, switch off interrupt mode" wastes time on startup

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Message-ID: <9b2b86520903270310x78193514l44b89ed6d3088cf8@mail.gmail.com>
Date:	Fri, 27 Mar 2009 10:10:39 +0000
From:	Alan Jenkins <sourcejedi.lkml@...glemail.com>
To:	Corrado Zoccolo <czoccolo@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	linux acpi <linux-acpi@...r.kernel.org>
Subject: Re: "ACPI: EC: missing confirmations, switch off interrupt mode" 
	wastes time on startup

On 3/26/09, Corrado Zoccolo <czoccolo@...il.com> wrote:
> On Thu, Mar 26, 2009 at 5:58 PM, Alan Jenkins
> <sourcejedi.lkml@...glemail.com> wrote:
>> On 3/26/09, Corrado Zoccolo <czoccolo@...il.com> wrote:
>>
>> Currently there is no option to force polling, sorry.  I'm _guessing_
>> this was a deliberate omission.  But I can sympathise that even 0.5s
>> boot delay is bad on a netbook.
>>
> Yes. Do you think that changing olpc_ec_timeout kernel parameter may
> help in getting the timeout sooner?
>

No, that's something different.  There's no boot option to change the timeout.

>> Feel free to create a new bugzilla entry.  You can attach the full
>> output of dmesg, but acpidump is probably not required.  What would be
>> really helpful is if you could file on bugzilla, and attach a full
>> debug trace.  I.e. as well as the normal dmesg, attach the dmesg
>> output after recompiling with this change:
>>
>
> bug: http://bugzilla.kernel.org/show_bug.cgi?id=12949
> full debug dmesg: http://bugzilla.kernel.org/attachment.cgi?id=20695

Great.
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