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SubjectRe: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
On Tue, 31 Oct 2006 09:23:44 +0100
Giacomo Catenazzi <cate@cateee.net> wrote:

> Since few days I have this bug (not sure if it
> caused by changed configuration or if it is a regretion).
> The fololowing trace is from last git.
>
> ...
>
>
> [ 0.012497] Brought up 4 CPUs
> [ 0.174941] migration_cost=19,713
> [ 0.215588] NET: Registered protocol family 16
> [ 0.268807] ACPI: bus type pci registered
> [ 0.316660] PCI: Fatal: No config space access function found

That looks pretty bad.

> [ 0.385262] Setting up standard PCI resources
> [ 0.452566] ACPI: Access to PCI configuration space unavailable
> [ 0.527856] ACPI: Interpreter enabled
> [ 0.571564] ACPI: Using IOAPIC for interrupt routing
> [ 0.631370] ACPI: PCI Root Bridge [PCI0] (0000:00)
> [ 0.690684] ------------[ cut here ]------------
> [ 0.745825] kernel BUG at drivers/acpi/osl.c:461!

And acpi keeled over as a result.

Do you have CONFIG_PCI_MULTITHREAD_PROBE=y? If so, try disabling it.

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