From: Tejun Heo <htejun@gmail.com>
To: Paul Rolland <rol@as2917.net>
Cc: David Newall <david@davidnewall.com>,
Linux Kernel <linux-kernel@vger.kernel.org>,
IDE/ATA development list <linux-ide@vger.kernel.org>,
rol@witbe.net
Subject: Re: 2.6.23-rc7 - _random_ IRQ23 : nobody cared
Date: Fri, 28 Sep 2007 02:55:32 -0700 [thread overview]
Message-ID: <46FCCF94.9060400@gmail.com> (raw)
In-Reply-To: <20070927080551.424e90b9@tux.DEF.witbe.net>
Paul Rolland wrote:
>> Can you change driver load order such that the driver for the modem is
>> loaded first?
>
> As I said, it's not possible, because :
> - the modem driver is an out-kernel one, so I have to wait the end of the
> boot process so that it can be loaded,
> - libata on IRQ23 is the one taking care of my disks, and I suspect it
> quite hard to install a modem driver before having the disk driver
> installed.
You can do both by...
1. Build the modem driver into the kernel. char drivers are linked in
before ATA ones, so it will attach first.
2. Using a custom initrd with emergency shell. initrd is loaded by BIOS
so no driver is involved. I don't actually know how to do this tho.
3. Put in an extra disk controller and boot from it with both drivers
compiled as module.
--
tejun
prev parent reply other threads:[~2007-09-28 9:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-24 6:33 2.6.23-rc7 - _random_ IRQ23 : nobody cared Paul Rolland
2007-09-24 14:26 ` David Newall
2007-09-25 7:00 ` Paul Rolland
2007-09-27 0:55 ` Tejun Heo
2007-09-27 6:05 ` Paul Rolland
2007-09-27 9:04 ` Benjamin Herrenschmidt
2007-09-27 10:05 ` Paul Rolland
2007-09-27 22:27 ` Benjamin Herrenschmidt
2007-09-28 6:30 ` Paul Rolland
2007-09-28 9:55 ` Tejun Heo [this message]
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