linux-kernel - Re: regression on HP zx1 platform from ACPI autoload modules patches

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Message-ID: <6bffcb0e0707301607x5484f114q9117007d131f7118@mail.gmail.com>
Date:	Tue, 31 Jul 2007 01:07:03 +0200
From:	"Michal Piotrowski" <michal.k.k.piotrowski@...il.com>
To:	"Doug Chapman" <doug.chapman@...com>
Cc:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-ia64@...r.kernel.org, trenn@...e.de
Subject: Re: regression on HP zx1 platform from ACPI autoload modules patches

Hi Doug,

On 31/07/07, Doug Chapman <doug.chapman@...com> wrote:
> I am seeing a regression on the HP ia64 zx1 platforms when using
> a .config with CONFIG_IA64_HP_ZX1=y.  Oddly it works OK with
> CONFIG_IA64_GENERIC=y.
>
>
> During bootup it panics with:
>
> Kernel panic - not syncing: Unable to find SBA IOMMU: Try a generic or DIG kernel
>
> I can provide the full console output if that is helpful.

Yes, it is very useful.

>  Also, please let
> me know if there is any other data I can provide that would be helpful.

Kernel .config file.

>
> Using git bisect I have narrowed it down to these 2 commits.  These commits
> cannot be built separately as they appear to have code that depends on each
> other.
>
>
> commit 29b71a1ca74491fab9fed09e9d835d840d042690
> Author: Thomas Renninger <trenn@...e.de>
> Date:   Mon Jul 23 14:43:51 2007 +0200
>
>     ACPI: autoload modules - Create ACPI alias interface
>
>     Modify modpost (file2alias.c) to add acpi*:XYZ0001: alias in modules.alias
>     like:
>     grep acpi /lib/modules/2.6.22-rc4-default/modules.alias
>     alias acpi*:SNY5001:* sony_laptop
>     alias acpi*:SNY6001:* sony_laptop
>     for e.g. the sony_laptop module.
>     This module matches against all ACPI devices with a HID or CID of SNY5001
>     or SNY6001
>
>     Export an uevent and modalias sysfs file containing the string:
>     [MODALIAS=]acpi:PNP0C0C:
>     additional CIDs are concatenated at the end.
>
>     Signed-off-by: Thomas Renninger <trenn@...e.de>
>     Signed-off-by: Kay Sievers <kay.sievers@...y.org>
>     Signed-off-by: Len Brown <len.brown@...el.com>
>
>
> Author: Thomas Renninger <trenn@...e.de>
> Date:   Mon Jul 23 14:43:32 2007 +0200
>
>     ACPI: autoload modules - ACPICA modifications
>
>     Define standardized HIDs - Rename current acpi_device_id to acpica_device_id
>
>     Signed-off-by: Thomas Renninger <trenn@...e.de>
>     Signed-off-by: Len Brown <len.brown@...el.com>
>
>
>
> - Doug
>

Regards,
Michal

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