Re: outrigger motherboard and i840 locking at PCI Probing

From: Brian W. Johanson (bjohanso@psc.edu)
Date: Mon Jul 31 2000 - 12:58:31 EST


On Mon, 31 Jul 2000, Richard B. Johnson wrote:

> On Mon, 31 Jul 2000, Brian W. Johanson wrote:
>
> >
> > I have a micron clientpro dx5000 dual 733 PIII machine with the i840 pci
> > chipset, outrigger motherboard (I believe) and it has onboard sound and
> > ethernet.
> > I have tried the lastest kernel and the machine locks up at Probing PCI
> ^^^^^^^^^^^^^
>
> This may not be a good idea. Try 2.2.15 or 2.2.16. These are not
> development kernels and they do work.

I have tried 2.2.16 also... redhat's kernel on their bootdisk does the
same also so I figured I would try the development ones but no luck with
any

>
> PCI is PCI. Intel was one of those that wrote the rules. It is unlikely
> that they would market a bad chip. However, check to see what your
> BIOS is doing. If a 33 MHz PCI bus has been set to 66 MHz, all bets
> are off.
>
The bios on this machine is horrid.... they appearently thought that it
would be cute to make it look kinda like windows but also it is basically
just information on the system... almost nothing edit-able besides which
device order to boot from and power saving.

> Also, some BIOS fail to set shared memory correctly on some PCI devices.
> For instance, if you have a PCI screen-card with 4 Mb of shared memory, it
> must be placed on a 4 Mb boundary. That's the rules. Attempts to access
> such devices, that are not properly aligned, will produce address aliases.
>
> This means that when the device-driver accesses its shared RAM, it may
> write over important kernel stuff.
>
oh what fun... I would assume that the onboard sound and ethernet are
taking some RAM away... yet with these disabled I dont get anywhere either

> If you BIOS is mucking up, there may be an upgrade available since
> these things are discovered fairly quickly.
>

so far I have the lastest BIOS ... blaah

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