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    SubjectRe: PCI interrupt problem: e1000 & Super-Micro X6DVA motherboard
    Date
    On 24.03.2005, at 03:03, Ben Greear wrote:

    > When trying to send/receive traffic, I get TX watchdog timeouts. The
    > other
    > interfaces seem to work just fine.

    No idea whether my problem is related but due to a broken motherboard
    I had to switch from a SiS based Athlon board (ECS K7S5A) to a new
    one which is VIA based:

    0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600
    AGP] Host Bridge (rev 80)
    0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
    0000:00:09.0 VGA compatible controller: Cirrus Logic GD 5446
    0000:00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
    RTL-8169 Gigabit Ethernet (rev 10)
    0000:00:0b.0 Ethernet controller: Intel Corp. 82541GI/PI Gigabit
    Ethernet Controller
    0000:00:0d.0 FireWire (IEEE 1394): NEC Corporation uPD72874 IEEE1394
    OHCI 1.1 3-port PHY-Link Ctrlr (rev 01)
    0000:00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420
    SATA RAID Controller (rev 80)
    0000:00:0f.1 IDE interface: VIA Technologies, Inc.
    VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
    0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
    1.1 Controller (rev 81)
    0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
    1.1 Controller (rev 81)
    0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
    1.1 Controller (rev 81)
    0000:00:10.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
    1.1 Controller (rev 81)
    0000:00:10.4 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 86)
    0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge
    [K8T800 South]
    0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc.
    VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
    0000:00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102
    [Rhine-II] (rev 78)

    Strange enough the beforehand very reliable Intel Pro/1000 MT
    controller would also see watchdog errors in an otherwise
    unchanged environment (same kernel, cards, CPU, etc.). I tried
    different kernels 2.6.8-2.6.10, but no change; I tried without
    ACPI information for IRQ routing -- nope. I tried swapping PCI
    slots -- negative, sir.

    As a temporary counter measure (this box is not only a ethernet
    bridge between 100Mbit and 1000Mbit switched networks but also
    the primary fileserver for my netboot TFTP/NFS environment, so
    dropouts are especially nasty since it takes some time until the
    NFS machines on the Gbit network will resume operation) I popped
    in the cheeeep RealTek card (which caused some slight problems
    like permanent hangs and bad performance before) and everything
    works like a charm. Of course, after throwing in some extra
    money to get at least somewhat professional equipment, I'd like
    to use it, too.

    This is the (strange?) ethtool output:
    Settings for eth0:
    Supported ports: [ TP ]
    Supported link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full
    Supports auto-negotiation: Yes
    Advertised link modes: 10baseT/Half 10baseT/Full
    100baseT/Half 100baseT/Full
    1000baseT/Full
    Advertised auto-negotiation: Yes
    Speed: Unknown! (65535)
    Duplex: Unknown! (255)
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: on
    Supports Wake-on: umbg
    Wake-on: g
    Current message level: 0x00000007 (7)
    Link detected: no

    The card is still in the system and running, so if someone wants
    me to run to more tests or diagnostic, please be my guest.

    Servus,
    Daniel
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