linux-kernel - Re: libata - DMA problems ICH7 rev 02

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Message-ID: <261987b2-215b-40ac-b33f-dfd659d228bf@d77g2000hsb.googlegroups.com>
Date:	Wed, 28 May 2008 08:04:04 -0700 (PDT)
From:	Alan Jenkins <aj504@...york.ac.uk>
To:	Jan Niklas Hasse <jhasse@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: libata - DMA problems ICH7 rev 02

Jan Niklas Hasse wrote:
> On Wed, May 28, 2008 at 3:34 PM, Jan Niklas Hasse <jhasse@...il.com> wrote:
> >>
> >> It looks like you have the hard drive and the burner on the same IDE channel? Such problems are unavoidable in this setup since commands to one device on the channel can't execute while the other device is busy (especially for long commands like finalizing the disc). It would be better to move the drives onto separate channels.
> >
>
> As I have a notebook, I think I can't do that, can I?

This is the exact situation cdrecord's -immed option was designed
for.  "wodim"/cdrkit should have inherited it.  It sets a flag in the
commands to avoid blocking, though the documentation I read said it
was slightly experimental.
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