https://bugzilla.kernel.org/show_bug.cgi?id=56841

           Summary: Sony VAIO VPCZ23A4R: Oops on second docking attempt
           Product: ACPI
           Version: 2.5
    Kernel Version: 3.9-rc5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Config-Hotplug
        AssignedTo: acpi_config-hotp...@kernel-bugs.osdl.org
        ReportedBy: patra...@gmail.com
                CC: ying.hu...@intel.com, aaron...@intel.com
        Regression: No


Created an attachment (id=99331)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=99331)
Full dmesg from 3.9-rc5 with patch from bug 56501

On my Sony laptop, if I dock, undock and dock again, acpiphp_glue fails to
register interrupt notify handler and then the kernel dereferences the NULL
pointer in pci_bus_read_config_dword. The full dmesg (captured in part locally,
and in part over netconsole) is attached. The lines starting with
/sys/bus/pci/devices were written to /dev/kmsg for debugging another bug, you
can ignore them now.

Note: there are also failures to assign resources to PCI devices in the dock.
They might share the root cause, but are tracked in a different bug #56531.

Bugs that were relevant to the same laptop and may contain useful attachments
such as dmesgs and acpidump output:

 * bug #55611
 * bug #56501
 * bug #56531

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