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Date:      Tue, 10 Aug 2004 22:38:22 +0200
From:      Radek Kozlowski <radek@raadradd.com>
To:        Nate Lawson <nate@root.org>
Cc:        sos@deepcore.dk
Subject:   Re: Panic on boot with today's CURRENT, ata related
Message-ID:  <20040810203822.GB28585@werd>
In-Reply-To: <411406AA.3030607@root.org>
References:  <4113EB2A.7060401@root.org> <20040806221109.GC55186@werd> <411406AA.3030607@root.org>

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On Fri, Aug 06, 2004 at 03:31:06PM -0700, Nate Lawson wrote:
> It looks like the DMA object for the channel is not being initialized. 
> However, that is in another path (this backtrace is just a symptom 
> triggered by the first DMA access to the drive).  Someone who knows more 
> about the control path for going from PIO -> DMA mode will have to look 
> into this.

I would like to stress that it only happens with ACPI enabled. If I boot
with ACPI disabled the transfer mode is set to UDMA100. Shall I provide
you with more info?

Thanks,

-Radek



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