Sis900 ethernet dropping 70% packets

Sis900 ethernet dropping 70% packets

[Andrew Walrond]

I'm trying to install a little Via C3 machine with on-board Sis900 ethernet. 
As usual, I booted my LNX-BBC rescue disk, configured eth0 and tried to scp 
my distro over, but failed miserably.

Pinging other hosts on the net sees 70-80% packets getting lost.

LNX-BBC rescue cd uses a 2.4.19 kernel

So then I tried a Trinity rescue disk, using a 2.4.21 kernel. Same thing.

Anybody got experience of this? Googling gives wads of people with similar 
sounding problems, mostly interrupt related, sometimes Vlan related (It's 
plugged into a Cisco catalyst but I tried a x-over cable to my laptop with 
the same result, so I don't think thats relevant), but don't see any 
solutions.

Is this a known-bad interface? The drivers sources don't seem to have been 
touched for a long time which makes me think its unlikely that a newer kernel 
would help, but who knows...

Any suggestions apprieciated

Andrew Walrond

Re: Sis900 ethernet dropping 70% packets

[Måns Rullgård]

Andrew Walrond <andrew@walrond.org> writes:

> I'm trying to install a little Via C3 machine with on-board Sis900 ethernet. 
> As usual, I booted my LNX-BBC rescue disk, configured eth0 and tried to scp 
> my distro over, but failed miserably.
>
> Pinging other hosts on the net sees 70-80% packets getting lost.
>
> LNX-BBC rescue cd uses a 2.4.19 kernel
>
> So then I tried a Trinity rescue disk, using a 2.4.21 kernel. Same thing.
>
> Anybody got experience of this? Googling gives wads of people with similar 
> sounding problems, mostly interrupt related, sometimes Vlan related (It's 
> plugged into a Cisco catalyst but I tried a x-over cable to my laptop with 
> the same result, so I don't think thats relevant), but don't see any 
> solutions.
>
> Is this a known-bad interface? The drivers sources don't seem to
> have been touched for a long time which makes me think its unlikely
> that a newer kernel would help, but who knows...

I can only say that my laptop has a sis900, and I've never had any
problems with it.  I'd look for errors elsewhere.  Maybe it's ACPI
related.  ACPI seems to be able to screw up anything.

-- 
Måns Rullgård
mru@kth.se

Re: Sis900 ethernet dropping 70% packets

[Len Brown]

> I can only say that my laptop has a sis900, and I've never had any
> problems with it.  I'd look for errors elsewhere.  Maybe it's ACPI
> related.  ACPI seems to be able to screw up anything.

If it fails with ACPI enabled, but works with "acpi=off", then please
send me the details, including the /proc/interrupts for each case.

thanks,
-Len