on Sat, Sep 15, 2001 at 05:00:45PM +0100, Keith O'Connell (keith_oconnell@blueyonder.co.uk) wrote:
> I have an old 400 Mhz Pentium, that I want to use as a firewall. It has
> 80Mb ram and a 6Gb disk. Now I understand that this is easily ample for
> the task.
>
> It only has one network card in it at the moment, but that card seems to
> generate this message at boot time. None of the other computers running
> Debian do so, so I thought before I commit to my spare time project of
> building the firewall, is this machines error message a sign of a
> problem?
>
>
> tulip.c:v0.91g-ppc 7/16/99 becker@cesdis.gsfc.nasa.gov
> eth0: Lite-On 82c168 PNIC rev 32 at 0x1000, 00:A0:CC:D3:72:BA, IRQ
> 11.
> eth0: MII transceiver #1 config 3000 status 7829 advertising 01e1.
> PCI latency timer (CFLT) is unreasonably low at 0. Setting to 64
> clocks.
>
> It is the "unreasonably low" coment that I would like some guidance on.
> If I put two nics in this machine and use it as a firewall only, have I
> made myself a problem?
Specifically, responding to my previous post:
/usr/src/linux/drivers/net/tulip.c:
/* Get and check the bus-master and latency values. */
if (dev) {
u8 pci_latency;
pcibios_read_config_byte(pci_bus, pci_device_fn,
PCI_LATENCY_TIMER, &pci_latency);
if (pci_latency < 10) {
printk(KERN_INFO " PCI latency timer (CFLT) is "
"unreasonably low at %d. Setting to 64 clocks.\n",
pci_latency);
pcibios_write_config_byte(pci_bus, pci_device_fn,
PCI_LATENCY_TIMER, 64);
}
}
...looks like a sanity check.
Peace.
--
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