Re: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration

From: Andrew Morton <akpm@xxxxxxxx>
Date: Tue, 31 Oct 2006 02:41:50 -0800

On Tue, 31 Oct 2006 11:29:15 +0100
"Giacomo A. Catenazzi" <cate@xxxxxxxxxx> wrote:

And acpi keeled over as a result.

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

No:
# CONFIG_PCI_MULTITHREAD_PROBE is not set

The config is in:
http://www.cateee.net/kernel/config

Your PCI access mode is set to MMCONFIG. Try setting it to "any" (under the
bus options menu).

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Follow-Ups:
- Re: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
  - From: Giacomo Catenazzi

References:
- Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
  - From: Giacomo Catenazzi
- Re: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
  - From: Andrew Morton
- Re: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
  - From: Giacomo A. Catenazzi

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Relevant Pages

Re: Panic with 2.6.19-rc3-ga7aacdf9: Invalid opcode at acpi_os_read_pci_configuration
... Andrew Morton wrote: ... The config is in: ... Your PCI access mode is set to MMCONFIG. ...
(Linux-Kernel)
Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in
... As far as the device is concerned, after the Northbridge translates ... the device does not know whether the config cycle ... on the bus was caused by an MMCONFIG cycle or a legacy Port IO ... MMCONFIG cycles, like the AMD 8132, we were blacklisting ...
(Linux-Kernel)
Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
... Inconsistent (config access depends on device) ... MMCONFIG isn't always used, it's used on a per device basis ... in mmconfig_.c} strictly on a per-bus basis, based on the ... ext cfg space is available ...
(Linux-Kernel)
Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driver opt-in
... Just about NOBODY has devices that need the extended config space. ... Northbridge received Port IO or MMCONFIG cycles. ... MMCONFIG-compliant buses from those that could not handle MMCONFIG. ...
(Linux-Kernel)
Re: [Fwd: Re: [PATCH 0/5]PCI: x86 MMCONFIG]
... by MMCONFIG kind of makes sense, since the northbridge is what's translating the MMCONFIG memory access into config accesses. ... The MMCONFIG access should get translated into a configuration space access in the northbridge and from that point on there's no difference between an MMCONFIG and type1 access. ...
(Linux-Kernel)