Re: PCI interrupt problem: e1000 & Super-Micro X6DVA motherboard

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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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