Re: ethernet PCI HELP PLEASE??

[stnick <stnick slip net>]

David-

  Looks to me like both your SCSI card and the nic are trying to use the same irq.
In most of the more recent motherboards I have experience with, this can be
resolved in one of two ways.
  The first, is by moving the Adaptec card to a different bus slot and moving
another pci device (the video card works nicely) into the Adaptec's current slot,
taking care that the *order* of the pci devices up and down the bus slots
(particularly the Adaptec card) is changed.  Also, take note that there is a
particular irq that the Adaptec cards hate (it is either 10 or 11, I can't
remember).  This method leaves the nic at irq 9, and makes the motherboard pick a
new irq for the Adaptec card (since the motherboard is assigning it 9 based on its
level and order amongst the existing pci devices on the bus).

  The other method is to attain (hopefully it came on a 3.5 floppy with the card)
and use the flash bios configuration disk for your nic, changing the nic's irq to
that is free.  In my experience, the flash bios disk that 3com ships *must* be used
with an available c: drive dos partition (this causes no end of frustration at our
business, since whenever we have to install a card on-site on our SCO boxes on site
and find that the difault irq is unavailable, we have to bring it back into the
office, install it in a wondoze machine, yada yada yada . . .).

    HTH,
    stnick

David Hughes wrote:

> I am attempting to install RedHat 4.2 onto a system and everything goesx
> well except for the ethernet adapter.  I have included the
> /var/logs/messages extract, including the Adaptec controller entries,
> below.  The boot error that occurs is directly below.  At the moment I
> am searching for solutions on the RedHat site, but I thought I would
> post this out to see if anyone could suggest a solution. . . system
> features are in the extract for the Adaptec controller at the bottom.  I
> am starting to see issues raised with PCI/VLB platforms.  Is this where
> my problem lies?  I will continue to research, but any help would be
> much appreciated.
>
> tia, david hughes
>
> During boot, eth0 (3com) is found.  Error message that is given during
> boot is:
>
> eth0: 3Com 3c905 Boomerang 100baseTx at 0x6800, 00:60:08:a5:af:dc, IRQ 9
>
> 8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface.
> Rx Pacing bug exists, disabling bus-master receives.
> eth0: Overriding PCI latency timer (CFLT) setting of 32, new value is 248.
>
> Extract of /var/log/messages:
>
> Nov 27 12:53:41 eight kernel: AHA-2940 (PCI-bus), I/O 0x6300, Mem
> 0xe1000000:
> Nov 27 12:53:41 eight kernel:     irq 9
> Nov 27 12:53:41 eight kernel:     bus release time 40 bclks
> Nov 27 12:53:41 eight kernel:     data fifo threshold 100
> Nov 27 12:53:41 eight kernel:     SCSI CHANNEL A:
> Nov 27 12:53:41 eight kernel:         scsi id 7
> Nov 27 12:53:41 eight kernel:         scsi selection timeout 256 ms
> Nov 27 12:53:41 eight kernel:         scsi bus reset at power-on enabled
> Nov 27 12:53:41 eight kernel:         scsi bus parity enabled
> Nov 27 12:53:41 eight kernel:         scsi bus termination (low byte) enabled
> Nov 27 12:53:41 eight kernel: aic7xxx: Downloading sequencer code...done.
> Nov 27 12:53:41 eight kernel: aic7xxx: Resetting the SCSI bus...done.
> Nov 27 12:53:41 eight kernel: scsi0 : Adaptec AHA274x/284x/294x
>         (EISA/VLB/PCI-Fast SCSI) 4.0/3.2/4.0
> Nov 27 12:53:41 eight kernel: scsi : 1 host.
> Nov 27 12:53:41 eight kernel: scsi0: Scanning channel A for devices.
> Nov 27 12:53:41 eight kernel: scsi0: Target 0, channel A, now
>         synchronous at 10.0MHz, offset 15.
> Nov 27 12:53:41 eight kernel:   Vendor: QUANTUM   Model: FIREBALL
>         ST2.1S   Rev: 0F0C
> Nov 27 12:53:41 eight kernel:   Type: Direct-Access  ANSI SCSI revision: 02
> Nov 27 12:53:41 eight kernel: Detected scsi disk sda at scsi0, channel
>         0, id 0, lun 0
> Nov 27 12:53:41 eight kernel: scsi0: Target 1, channel A, now
>         synchronous at 10.0MHz, offset 15.
> Nov 27 12:53:41 eight kernel:   Vendor: QUANTUM   Model: FIREBALL
>         ST2.1S   Rev: 0F0C
> Nov 27 12:53:41 eight kernel:   Type: Direct-Access  ANSI SCSI revision: 02
> Nov 27 12:53:41 eight kernel: Detected scsi disk sdb at scsi0, channel
>         0, id 1, lun 0
> Nov 27 12:53:41 eight kernel: SCSI device sda: hdwr sector= 512 bytes.
>         Sectors= 4235629 [2068 MB] [2.1 GB]
> Nov 27 12:53:41 eight kernel:  sda: sda1 sda2
> Nov 27 12:53:41 eight kernel: SCSI device sdb: hdwr sector= 512 bytes.
>         Sectors= 4235629 [2068 MB] [2.1 GB]
> Nov 27 12:53:41 eight kernel:  sdb: sdb1 sdb2
>
> Nov 27 12:53:41 eight kernel: 3c900.c:v0.40 4/16/97 becker cesdis gsfc nasa gov
> Nov 27 12:53:41 eight kernel: loading device 'eth0'...
> Nov 27 12:53:41 eight kernel: eth0: 3Com 3c905 Boomerang 100baseTx at
>         0x6800, 00:60:08:a5:af:dc, IRQ 9
> Nov 27 12:53:41 eight kernel:   8K word-wide RAM 3:5 Rx:Tx split,
>         autoselect/MII interface.
> Nov 27 12:53:41 eight kernel:   Rx Pacing bug exists, disabling
>         bus-master receives.
> Nov 27 12:53:41 eight kernel: eth0: Overriding PCI latency timer (CFLT)
>         setting of 32, new value is 248.
>
> David Hughes