Re: epic100 error

Francois Romieu
2001-04-20T10:25:46Z

Stefan Jaschke <s-jaschke@t-online.de> ecrit :
[...]
> I don't believe the motherboard or the BIOS have anything to do with, simply

It may give a clue because the machine I wrote this mail from is a
2.4.3 + 2*EtherPower II it looks rather fine (old asus motherbord, BX,
backuped peaceful prod server):
I tried 2.4.3 on some bp6+epic100 (2.4.0/1/2/3 + misc ac). No problems either.

Around the 10 of february, Arnd Bergmandd <std7652@et.FH-Osnabrueck.DE> had
problems with the epic100. These appeared between two revisions of the
driver that differ only in the use of DMA mapping I made at the moment.
<digression>
Fwiw, it was essentially a matter of coding-style as on x86 the DMA mapping
actually called the former virt_to_phys and pci_dma_sync was rather empty.
It made no design change. It may be possible I assumed some data were in
memory as they are still in some cpu registers. I'll re-re-check that.
</digression>

Summary:
Arnd Bergmann:
orig epic100 "DMA mapped epic100 (any version)"
(<=2.4.0-ac9)
VT8363 ok fscked but ok after bios update

Daniel Nofftz:
2.4.2 2.4.3
VT82C595 ok fscked. (no mention of bios experience)

Oliver Teuber:
2.2.19 2.4.3-ac7
VT82C598 ok fscked

Romieu:
2.2.xx 2.4.[123]
82443BX ok ok

Now it's complicated by the fact that between 2.4.2 and 2.4.3, you
have DMA mapping + others changes in epic100 (they make sense imho).

What happen's if you compile 2.4.2 epic100 driver in a 2.4.3 tree (I) ?

[...]
> Something between 2.4.0 and 2.4.3 breaks the epic100 driver. That's it.

So far it's hard to say where it comes from.
I would really appreciate if you could give a look at (I).
If it doesn't change anything and you have spare time, some feedback
from bios experience will be welcome too.

--
Ueimor