linux-kernel - Re: 2.6.19-rc3 system freezes when ripping with cdparanoia at ioctl(SG

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Message-ID: <20061110161510.GC15031@kernel.dk>
Date:	Fri, 10 Nov 2006 17:15:10 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Monty Montgomery <monty@...h.org>
Cc:	Tejun Heo <htejun@...il.com>,
	Brice Goglin <Brice.Goglin@...-lyon.org>,
	Gregor Jasny <gjasny@...glemail.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	Douglas Gilbert <dougg@...que.net>
Subject: Re: 2.6.19-rc3 system freezes when ripping with cdparanoia at ioctl(SG_IO)

On Thu, Nov 09 2006, Monty Montgomery wrote:
> On 11/9/06, Tejun Heo <htejun@...il.com> wrote:
> 
> >drivers/scsi/sg.c interprets SG_DXFER_TO_FROM_DEV as read while
> >block/scsi_ioctl.c interprets it as write.  I guess this is historic
> >thing (scsi/sg.c updated but block/scsi_ioctl.c is forgotten).
> 
> Not historic; Jens accidentally implemented it backwards.  No one
> noticed for a long time.  I submitted a patch for this a few months
> ago.

Yeah, I wonder why that did not go in, I remember the full breadth of
our discussion and you are fully correct. I'll make sure it gets into
2.6.19!

-- 
Jens Axboe

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