linux-kernel - Re: 2.6.25-rc1 ahci regression

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Message-ID: <AANLkTil9qF3gGg1Ev4CQsMHkb6ZdUU6OVh_fZHAyNqcX@mail.gmail.com>
Date:	Thu, 3 Jun 2010 23:48:08 +0800
From:	Luming Yu <luming.yu@...il.com>
To:	Américo Wang <xiyou.wangcong@...il.com>
Cc:	Anton Vorontsov <cbouatmailru@...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 3, 2010 at 11:45 PM, Américo Wang <xiyou.wangcong@...il.com> wrote:
> 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?

mkinitrd ... --with=ahic --with=libahci works for me

>
> And, Luming, are you using Dracut?
>
yes, I have dracut installed
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