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