From: <Baecker@IRF.de>
To: linux-kernel@vger.kernel.org
Subject: Re: 2.6.3/scsi: Unexpected busfree while idle
Date: Thu, 18 Mar 2004 15:03:53 +0100
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Hi!

> Hi all,
> 
> what does the following message mean (during scsi init at boot)?
> 
> scsi0: Unexpected busfree while idle
> SEQADDR == 0x1
> 
> It appears each second or so, and the system can't move on. It only 
happens if 
> a specific drive is on the scsi bus.
> 
> Does it mean that drive is broken?

Not necessarily. It might just fail to meet the timing specification the 
controller is demanding.
A similar effect occured with my scanner attached to a adaptec 
controller. BTW, which brand is your controller? 

> The scsi bios (during system bootup, before linux) detects all discs 
properly 
> (including this one), and in the scsi bios i can "veryfiy media" and 
it 
> doesn't complain.


You might want to try whether the following is working - within the 
computers BIOS setup disable both external and internal caching 
temporarily. This makes the system extremely sloooooooooooow - but it 
made my scanner working. (That's no solution, of course!  --  Just a 
way to trace the problem.)

 
> Thanks in advance,
> 
> 	Florian


Hope it works,

Thomas
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