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    SubjectRe: PCI-Express not working/unuseable on Intel 925XE Chipset since 2.6.12-rc1[mm1-4]
    Michael Thonke napisał(a):
    > Hello,
    >
    > since the first version of 2.6.12-rc1 and mm[1-4] kernel I can't use any
    > of my PCI-Express devices that worked with all 2.6.11.[1-6] kernels.
    > It's a real odd right now.
    >
    > I have 25 computers with an Intel 925XE Chipset based motherboards and
    > Intel 6xx CPU on it. So far it does not metter which vendor I choose
    > (ASUS,ABIT,MSI etc.) the problem stay the same and spread all over.I
    > tried to boot with pci=routeicq but it did not help to get one device
    > working with any 2.6.12-rc1-xx kernel. As I mentioned before I tested it
    > with on several (over 25 computer) with various motherboards (with
    > ASUS,ABIT,MSI etc.) no luck. Its an 64bit system with [EMT64] and
    > SMP/SMT and preempt enabled + cpufreq.
    >
    > My first look was on PCI Routingtable and I found a difference to
    > 2.6.11.x working kernel:
    >

    I've got the same problem with i915 on Asus P5GDC V Deluxe Mainboard.
    This fragment of dmesg is from 2.6.12-rc1-mm4 kernel:
    PCI: Probing PCI hardware (bus 00)
    ACPI: Assume root bridge [\_SB_.PCI0] segment is 0
    Boot video device is 0000:00:02.0
    PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
    ACPI: Can't get handler for 0000:00:02.0
    ACPI: Can't get handler for 0000:00:02.1
    ACPI: Can't get handler for 0000:00:1b.0
    ACPI: Can't get handler for 0000:00:1f.3
    ACPI: Can't get handler for 0000:02:00.0
    ACPI: Can't get handler for 0000:01:04.0
    ACPI: Can't get handler for 0000:01:0a.0
    ACPI: Can't get handler for 0000:01:0b.0
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P3._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P4._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P5._PRT]
    ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 *10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKD] (IRQs *3 4 5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0,
    disabled.
    ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 *7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKG] (IRQs 3 *4 5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 *11 12 14 15)
    Linux Plug and Play Support v0.97 (c) Adam Belay
    pnp: PnP ACPI init
    ACPI: No ACPI bus support for 00:00
    ACPI: No ACPI bus support for 00:01
    ACPI: No ACPI bus support for 00:02
    ACPI: No ACPI bus support for 00:03
    ACPI: No ACPI bus support for 00:04
    ACPI: No ACPI bus support for 00:05
    ACPI: No ACPI bus support for 00:06
    ACPI: No ACPI bus support for 00:07
    ACPI: No ACPI bus support for 00:08
    ACPI: No ACPI bus support for 00:09
    ACPI: No ACPI bus support for 00:0a
    ACPI: No ACPI bus support for 00:0b
    ACPI: No ACPI bus support for 00:0c
    ACPI: No ACPI bus support for 00:0d
    ACPI: No ACPI bus support for 00:0e
    ACPI: No ACPI bus support for 00:0f
    ACPI: No ACPI bus support for 00:10
    pnp: PnP ACPI: found 17 devices
    SCSI subsystem initialized

    LSPCI OUTPUT:
    00:00.0 Host bridge: Intel Corp.: Unknown device 2580 (rev 04)
    Subsystem: Intel Corp.: Unknown device 2580
    Flags: bus master, fast devsel, latency 0
    Capabilities: [e0] #09 [2109]

    00:02.0 VGA compatible controller: Intel Corp.: Unknown device 2582 (rev
    04) (prog-if 00 [VGA])
    Subsystem: Asustek Computer, Inc.: Unknown device 2582
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at cfc80000 (32-bit, non-prefetchable) [size=512K]
    I/O ports at 9800 [size=8]
    Memory at d0000000 (32-bit, prefetchable) [size=256M]
    Memory at cfd80000 (32-bit, non-prefetchable) [size=256K]
    Expansion ROM at <unassigned> [disabled]
    Capabilities: [d0] Power Management version 2

    00:02.1 Display controller: Intel Corp.: Unknown device 2782 (rev 04)
    Subsystem: Asustek Computer, Inc.: Unknown device 2582
    Flags: bus master, fast devsel, latency 0
    Memory at cfd00000 (32-bit, non-prefetchable) [size=512K]
    Capabilities: [d0] Power Management version 2

    00:1b.0 Class 0403: Intel Corp.: Unknown device 2668 (rev 03)
    Subsystem: Asustek Computer, Inc.: Unknown device 813d
    Flags: bus master, fast devsel, latency 0, IRQ 10
    Memory at cfdf4000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [50] Power Management version 2
    Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-
    Capabilities: [70] #10 [0091]

    00:1c.0 PCI bridge: Intel Corp. I/O Controller Hub PCI Express Port 0
    (rev 03) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
    I/O behind bridge: 0000e000-0000efff
    Capabilities: [40] #10 [0141]
    Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable-
    Capabilities: [90] #0d [0000]
    Capabilities: [a0] Power Management version 2

    00:1c.1 PCI bridge: Intel Corp. I/O Controller Hub PCI Express Port 1
    (rev 03) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
    I/O behind bridge: 0000d000-0000dfff
    Memory behind bridge: cff00000-cfffffff
    Capabilities: [40] #10 [0141]
    Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable-
    Capabilities: [90] #0d [0000]
    Capabilities: [a0] Power Management version 2

    00:1d.0 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
    (prog-if 00 [UHCI])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 23
    I/O ports at 9880 [size=32]

    00:1d.1 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
    (prog-if 00 [UHCI])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 19
    I/O ports at 9c00 [size=32]

    00:1d.2 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
    (prog-if 00 [UHCI])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 18
    I/O ports at a000 [size=32]

    00:1d.3 USB Controller: Intel Corp. I/O Controller Hub USB (rev 03)
    (prog-if 00 [UHCI])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 16
    I/O ports at a080 [size=32]

    00:1d.7 USB Controller: Intel Corp. I/O Controller Hub USB2 (rev 03)
    (prog-if 20 [EHCI])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 11
    Memory at cfdff800 (32-bit, non-prefetchable) [size=1K]
    Capabilities: [50] Power Management version 2
    Capabilities: [58] #0a [20a0]

    00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB/EB/ER Hub interface to PCI
    Bridge (rev d3) (prog-if 01 [Subtractive decode])
    Flags: bus master, fast devsel, latency 0
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
    I/O behind bridge: 0000b000-0000cfff
    Memory behind bridge: cfe00000-cfefffff
    Capabilities: [50] #0d [0000]

    00:1f.0 ISA bridge: Intel Corp. I/O Controller Hub LPC (rev 03)
    Flags: bus master, medium devsel, latency 0

    00:1f.1 IDE interface: Intel Corp. I/O Controller Hub PATA (rev 03)
    (prog-if 8a [Master SecP PriP])
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: bus master, medium devsel, latency 0, IRQ 18
    I/O ports at <unassigned>
    I/O ports at <unassigned>
    I/O ports at <unassigned>
    I/O ports at <unassigned>
    I/O ports at ffa0 [size=16]

    00:1f.2 IDE interface: Intel Corp. I/O Controller Hub SATA cc=raid (rev
    03) (prog-if 8f [Master SecP SecO PriP PriO])
    Subsystem: Asustek Computer, Inc.: Unknown device 2601
    Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 19
    I/O ports at ac00 [size=8]
    I/O ports at a880 [size=4]
    I/O ports at a800 [size=8]
    I/O ports at a480 [size=4]
    I/O ports at a400 [size=16]
    Memory at cfdffc00 (32-bit, non-prefetchable) [size=1K]
    Capabilities: [70] Power Management version 2

    00:1f.3 SMBus: Intel Corp. I/O Controller Hub SMBus (rev 03)
    Subsystem: Asustek Computer, Inc.: Unknown device 80a6
    Flags: medium devsel
    I/O ports at 0400 [size=32]

    01:04.0 Unknown mass storage controller: Integrated Technology Express,
    Inc.: Unknown device 8212 (rev 13)
    Subsystem: Asustek Computer, Inc.: Unknown device 813a
    Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 11
    I/O ports at cc00 [size=8]
    I/O ports at c080 [size=4]
    I/O ports at c000 [size=8]
    I/O ports at bc00 [size=4]
    I/O ports at b880 [size=16]
    Expansion ROM at cfec0000 [disabled] [size=128K]
    Capabilities: [80] Power Management version 2

    01:0a.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
    Subsystem: C-Media Electronics Inc CMI8738/C3DX PCI Audio Device
    Flags: bus master, medium devsel, latency 64, IRQ 21
    I/O ports at c400 [size=256]
    Capabilities: [c0] Power Management version 2

    01:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd.: Unknown
    device 8180 (rev 20)
    Subsystem: Realtek Semiconductor Co., Ltd.: Unknown device 8180
    Flags: bus master, medium devsel, latency 64, IRQ 22
    I/O ports at c800 [size=256]
    Memory at cfeffc00 (32-bit, non-prefetchable) [size=256]
    Capabilities: [50] Power Management version 2

    02:00.0 Ethernet controller: Marvell: Unknown device 4362 (rev 15)
    Subsystem: Asustek Computer, Inc.: Unknown device 8142
    Flags: bus master, fast devsel, latency 0, IRQ 17
    Memory at cfffc000 (64-bit, non-prefetchable) [size=16K]
    I/O ports at d800 [size=256]
    Expansion ROM at cffc0000 [disabled] [size=128K]
    Capabilities: [48] Power Management version 2
    Capabilities: [50] Vital Product Data
    Capabilities: [5c] Message Signalled Interrupts: 64bit+ Queue=0/1 Enable-
    Capabilities: [e0] #10 [0011]




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