linux-kernel - Re: 2.6.25-rc1 ahci regression

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Message-ID: <20100603154533.GA11525@hack>
Date:	Thu, 3 Jun 2010 23:45:33 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Anton Vorontsov <cbouatmailru@...il.com>
Cc:	Luming Yu <luming.yu@...il.com>, Jeff Garzik <jeff@...zik.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Michal Marek <mmarek@...e.cz>, Sam Ravnborg <sam@...nborg.org>
Subject: Re: 2.6.25-rc1 ahci regression

On Thu, Jun 03, 2010 at 07:04:22PM +0400, Anton Vorontsov wrote:
>On Thu, Jun 03, 2010 at 10:13:57PM +0800, Luming Yu wrote:
>> On Thu, Jun 3, 2010 at 9:50 PM, Anton Vorontsov <cbouatmailru@...il.com> wrote:
>> > On Thu, Jun 03, 2010 at 05:23:19PM +0400, Anton Vorontsov wrote:
>> > [...]
>> >> Oh. It seems I found it. It must be the module order loading
>> >> thing.
>> >>
>> >> Can you try the patch down below?
>> >
>> > OTOH... libahci is a link-time dependency. And the order doesn't
>> > matter here. So you should just have the libahci module in
>> > the initrd (actually, mkinitrd or whatever you use should
>> > have included this automatically).
>> >
>> 
>> Neither ahci nor libachi is automatically included in initrd..
>
>What commands you use to build the kernel and initrd?
>
>> Manually added ahci and libachi into initrd seems to make the problem go away..
>> Any idea why that could happen?
>
>No idea off hand.
>
>Cc'ing Kbuild folks. Question is: is there something wrong with
>writing stuff like this:
>obj-$(CONFIG_SATA_AHCI)         += ahci.o libahci.o
>obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platform.o libahci.o
>as in drivers/ata/Makefile?
>
>It seem to link fine, .ko's are created. But for some reason
>initrd doesn't include these modules for Luming...
>

Odd.
Are these modules exported to /lib/modules/`uname -r`/ directory?

And, Luming, are you using Dracut?

Thanks.


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