From: Lukas Hejtmanek <xhejtman@mail.muni.cz>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Oops 2.6.13-git6
Date: Tue, 13 Sep 2005 21:34:02 +0200 [thread overview]
Message-ID: <20050913193402.GI2383@mail.muni.cz> (raw)
In-Reply-To: <1126562475.30449.94.camel@localhost.localdomain>
On Mon, Sep 12, 2005 at 11:01:15PM +0100, Alan Cox wrote:
> In a tiny subset of cases and for PIO modes only for devices that match
> IDE generic PIO interfaces, providing the interface is not boot
> detected, you don't remove it when in use and the moon is in the right
> phase.
I'm not sure, if I understand correctly. However, I meant, in the case of hdd as
/dev/hda and cdrom as /dev/hdc, it works:
/usr/bin/hotswap --ide-controller 1 -n probe-ide
/usr/bin/hotswap --ide-controller 1 -n unregister-ide
remove cdrom here
after pluging cdrom back:
/usr/bin/hotswap --ide-controller 1 -n probe-ide
/usr/bin/hotswap --ide-controller 1 -n rescan-ide
I think, DMA cannot be turned on if cdrom was not plugged in at boot time for
some reason.
But things above do not work if hdd is /dev/hda and cdrom is /dev/hdb, i.e. on
the same channel.
Again, is it an IDE conception bug?
--
Lukáš Hejtmánek
prev parent reply other threads:[~2005-09-13 19:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-12 10:20 Oops 2.6.13-git6 Lukas Hejtmanek
2005-09-12 13:11 ` Alan Cox
2005-09-12 18:00 ` Lukas Hejtmanek
2005-09-12 22:01 ` Alan Cox
2005-09-13 19:34 ` Lukas Hejtmanek [this message]
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