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    SubjectRe: Call for PIIX4 chipset testers
    Linus Torvalds wrote:
    > While trying to figure out why one of Alan's laptops didn't like certain
    > resource allocations, it dawned on Ivan and me that the PIIX4 (aka
    > "82371AB PCI-TO-ISA/IDE Xcelerator", aka "old venerable Intel core
    > chipset") actually has a lot more PCI resources that it decodes than the
    > two big special cases we had been quirking out.
    >
    > It's an old chipset by now, but it was very very common, so I bet people
    > still have them around. If doing /sbin/lspci on your machine mentions
    > something like
    >
    > Intel Corporation 82371AB/EB/MB PIIX4 ISA
    >
    > can you please test out this patch and report what it says in dmesg?

    I have one that says:

    00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02)

    I hope it doesn't matter, but I've applied against the 2.6.13 kernel I
    had there at hand (I'm accessing it remotely).

    `dmesg -s 1000000 | grep PIIX4` just shows:

    PCI quirk: region 4000-403f claimed by PIIX4 ACPI
    PCI quirk: region 5000-501f claimed by PIIX4 SMB
    PIIX4: IDE controller at PCI slot 0000:00:07.1
    PIIX4: chipset revision 1
    PIIX4: not 100% native mode: will probe irqs later

    cat /proc/ioports:

    0000-001f : dma1
    0020-0021 : pic1
    0040-0043 : timer0
    0050-0053 : timer1
    0060-006f : keyboard
    0070-0077 : rtc
    0080-008f : dma page reg
    00a0-00a1 : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0170-0177 : ide1
    01f0-01f7 : ide0
    02f8-02ff : serial
    0376-0376 : ide1
    03c0-03df : vga+
    03c0-03df : matrox
    03f6-03f6 : ide0
    03f8-03ff : serial
    0cf8-0cff : PCI conf1
    4000-403f : 0000:00:07.3
    4000-4003 : PM1a_EVT_BLK
    4008-400b : PM_TMR
    400c-400f : GPE0_BLK
    4040-4041 : PM1a_CNT_BLK
    5000-501f : 0000:00:07.3
    e000-e01f : 0000:00:07.2
    e000-e01f : uhci_hcd
    e400-e4ff : 0000:00:0b.0
    e400-e4ff : r8169
    f000-f00f : 0000:00:07.1
    f000-f007 : ide0
    f008-f00f : ide1

    lspci:

    00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host
    bridge (rev 03)
    00: 86 80 90 71 06 00 10 22 03 00 00 06 00 20 00 00
    10: 08 00 00 d0 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 a0 00 00 00 00 00 00 00 00 00 00 00
    40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    50: 0c 8a 00 ff 00 00 00 09 03 10 11 00 00 00 00 00
    60: 00 00 10 20 20 20 20 20 00 00 00 33 03 8a 00 00
    70: 20 1f 0a 38 a0 00 00 01 06 ff 10 38 00 00 00 00
    80: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 98 66 00 00 04 61 00 00 00 05 00 00 00 00 00 00
    a0: 02 00 10 00 03 02 00 1f 00 00 00 00 00 00 00 00
    b0: 80 20 00 00 30 00 00 00 00 00 3f 01 20 10 00 00
    c0: 00 00 00 00 00 00 00 00 18 0c ff ff 67 00 00 00
    d0: 00 00 00 00 00 00 00 00 0c 00 00 00 00 00 00 00
    e0: 4c ad ff bb 8a 3e 00 80 2c d3 f7 cf 9d 3e 00 00
    f0: 40 01 00 00 00 f8 00 60 20 0f 00 00 00 00 00 00

    00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP
    bridge (rev 03)
    00: 86 80 91 71 07 01 20 02 03 00 04 06 00 40 01 00
    10: 00 00 00 00 00 00 00 00 00 01 01 20 f0 00 a0 22
    20: 00 d4 f0 d7 00 d8 f0 d9 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 88 00
    40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02)
    00: 86 80 10 71 0f 00 80 02 02 00 01 06 00 00 80 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    40: 00 00 00 00 00 00 00 00 00 00 00 00 4d 00 20 00
    50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    60: 0b 0c 80 0a 10 00 00 00 00 f2 80 00 00 00 00 00
    70: 00 00 00 00 00 00 0c 0c 00 00 00 00 00 00 00 00
    80: 00 00 06 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 05 00 80 60 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 21 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 30 0f 00 00 00 00 00 00

    00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
    00: 86 80 11 71 05 00 80 02 01 80 01 01 00 20 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 01 f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    40: 07 a3 77 e3 b0 00 00 00 0d 00 02 22 00 00 00 00
    50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 30 0f 00 00 00 00 00 00

    00:07.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01)
    00: 86 80 12 71 05 00 80 02 01 00 03 0c 00 20 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 01 e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 0a 04 00 00
    40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    60: 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 30 0f 00 00 00 00 00 00

    00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02)
    00: 86 80 13 71 03 00 80 02 02 00 80 06 00 00 00 00
    10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    40: 01 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    50: 00 58 1f 00 00 00 00 00 07 00 00 02 00 00 00 00
    60: 00 00 00 00 94 02 83 10 00 00 00 00 00 00 00 00
    70: 40 40 11 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 01 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 09 00 00 00 00 00 00 00 00 00 00 00 00 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 30 0f 00 00 00 00 00 00

    00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169
    Gigabit Ethernet (rev 10)
    00: ec 10 69 81 17 00 b0 02 10 00 00 02 08 20 00 00
    10: 01 e4 00 00 00 00 00 db 00 00 00 00 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 69 81
    30: 00 00 00 00 dc 00 00 00 00 00 00 00 0c 01 20 40
    40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 02 76
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

    01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP
    (rev 04)
    00: 2b 10 25 05 07 00 90 02 04 00 00 03 08 20 00 00
    10: 08 00 00 d8 00 00 00 d4 00 00 00 d5 00 00 00 00
    20: 00 00 00 00 00 00 00 00 00 00 00 00 2b 10 38 03
    30: 00 00 00 00 dc 00 00 00 00 00 00 00 0b 01 10 20
    40: 20 01 04 50 00 3c 00 00 10 ff ff 10 00 00 00 00
    50: 00 30 00 01 19 a4 90 01 00 00 00 00 00 00 00 00
    60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    d0: 00 00 00 00 00 00 00 00 00 00 00 00 01 f0 22 00
    e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    f0: 02 00 20 00 03 02 00 1f 01 03 00 1f 00 00 00 00

    I hope this is useful,

    --
    Paulo Marques - www.grupopie.com

    The rule is perfect: in all matters of opinion our
    adversaries are insane.
    Mark Twain

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