linux-kernel - Re: "spurious completions during NCQ" with 2.6.23.1 and DVD Multi-Recorder on Thinkpad T61

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Message-ID: <471E6FC2.1070401@tmr.com>
Date:	Tue, 23 Oct 2007 18:03:46 -0400
From:	Bill Davidsen <davidsen@....com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	Federico Sevilla III <jijo@....ph>, linux-kernel@...r.kernel.org
Subject: Re: "spurious completions during NCQ" with 2.6.23.1 and DVD   Multi-Recorder
 on Thinkpad T61

Alan Cox wrote:
> On Mon, 22 Oct 2007 09:56:10 +0800
> Federico Sevilla III <jijo@....ph> wrote:
> 
>> Hi,
>>
>> Using the 2.6.23.1 kernel and Debian Etch on a Lenovo Thinkpad T61
>> 7659A21, I am getting two weird errors, as follows:
> 
> Turn off bluetooth and you may find the stuck IRQ goes away - at least on
> some thinkpads there are weird extra IRQs when bluetooth is running which
> break stuff.
> 
There was an old American Music/Comedy show called "Hee Haw!" which had 
a recurring skit consisting of a farmer running into the doctor's office 
and saying
   "Doctor, doctor! It hurts when I do this!" followed by some unlikely 
activity.
   The doctor always replied "Then don't do that."

Turning off bluetooth is a useful diagnostic test, but for some systems 
it's not a practical operating configuration. Any thoughts on making 
bluetooth work in these cases? Most laptops make a unit like the 
Logitech MX5000 BT keyboard desirable for extended use.

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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