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

Michal Piotrowski
2007-07-30T23:07:03Z

Hi Doug,

On 31/07/07, Doug Chapman <doug.chapman@hp.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@suse.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@suse.de>
> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
> Signed-off-by: Len Brown <len.brown@intel.com>
>
>
> Author: Thomas Renninger <trenn@suse.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@suse.de>
> Signed-off-by: Len Brown <len.brown@intel.com>
>
>
>
> - Doug
>

Regards,
Michal

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