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    SubjectRe: Linux 2.6.27-rc5: System boot regression caused by commit a2bd7274b47124d2fc4dfdb8c0591f545ba749dd
    On Sat, Aug 30, 2008 at 12:51 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    > On Saturday, 30 of August 2008, Yinghai Lu wrote:
    >> On Sat, Aug 30, 2008 at 11:11 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
    >> > On Sat, Aug 30, 2008 at 10:55 AM, Yinghai Lu <yhlu.kernel@gmail.com> wrote:
    >> >> On Sat, Aug 30, 2008 at 10:14 AM, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    >> >>
    >> >>>
    >> >>> Could you please rebase them on top of current -git?
    >> >>
    >> >> please check attached quilt series based on linus tree.
    >> >
    >> > there is some problem with fix -v4...on one test machine.
    >> >
    >>
    >> this one should work.
    >
    > dmesg -s 262144
    >
    > http://www.sisk.pl/kernel/debug/mainline/2.6.27-rc5/dmesg-test.log
    >
    > cat /proc/iomem
    >
    > http://www.sisk.pl/kernel/debug/mainline/2.6.27-rc5/iomem-test.txt

    calling pci_subsys_init+0x0/0x120
    PCI: Using ACPI for IRQ routing
    request_resource: root: (PCI IO) [0, ffff], new: (PCI Bus 0000:01)
    [9000, 9fff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:01) [fe700000, fe7fffff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:01) [d8000000, dfffffff] conflict 0
    request_resource: root: (PCI IO) [0, ffff], new: (PCI Bus 0000:02)
    [a000, bfff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:02) [fe800000, fe8fffff] conflict 0
    request_resource: root: (PCI IO) [0, ffff], new: (PCI Bus 0000:03)
    [c000, cfff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:03) [fe900000, fe9fffff] conflict 0
    request_resource: root: (PCI IO) [0, ffff], new: (PCI Bus 0000:04)
    [d000, efff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:04) [fea00000, feafffff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new: (PCI Bus
    0000:05) [feb00000, febfffff] conflict 0
    request_resource: root: (PCI mem) [0, ffffffffffffffff], new:
    (0000:00:00.0) [e0000000, ffffffff] conflict 1
    pci 0000:00:00.0: BAR 3: can't allocate resource

    so pci_resource_survey is depth first. sub buses request some resource
    at first...

    we don't need quirk to handle that strange BAR res.

    and we got reserved register correctly
    in /proc/iomem
    d7fe0000-d7ffffff : reserved
    ..
    fff00000-ffffffff : reserved

    for
    BIOS-e820: 00000000d7fe0000 - 00000000d8000000 (reserved)
    BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)

    YH


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