linux-kernel - Re: 2.6.19-rc5: known regressions

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Message-ID: <20061108201945.GC4527@kernel.dk>
Date:	Wed, 8 Nov 2006 21:19:45 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Alex Romosan <romosan@...orax.lbl.gov>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.19-rc5: known regressions

On Wed, Nov 08 2006, Arjan van de Ven wrote:
> > Wonderful! So this is an INQUIRY command, yet the WRITE bit is set. The
> > drive gets really confused about that, for good reason. The question is
> > where that write bit comes from, it looks really odd. Additionally, we
> 
> it could be a userspace command; some userspace tools send inquiry via
> sg...

it is a userspace command, it originates from SG_IO. So that is a given.
The question is where the write bit comes from, I'd be puzzled if the
user app sets it - cdparanoia in this case. Seeing as there's other
request mangling, I hope the new debug patch can shed some light on
that.

-- 
Jens Axboe

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