William W. Austin wrote:
> I had to replace a disk (the one with all of the home directories on
> it) on an FC3 box, and so I bought a new drive (particulars
> unimportant).
>
> To make a long story short, I decided to put FC4 on this box, and so I
> installed the new drive and put the root filesystem on it. I still
> have the old FC3 root drive and can boot to either for comparison...
>
> Under FC3, I have no network problems that I can detect; however, under
> FC4 there are two distinct (related? no idea) problems which have
> eluded me. I have tried looking up both of these in the archives, but
> have had no luck (some similar issues, but nothing exactly like either
> of these unless I missed them).
>
> Problem 1: network card goes to sleep.
>
> This machine has 2 network cards, both on-board. The 1GB card L(Intel
> 82540EM) goes to the smartswitch to tolk to the local network, and does
> not show any problems.
> The other card (nVidia nForce2) is a 100MB card and talks to the DSL
> modem. Periodically I cannot connect to the internet at all - or even
> ping the DSL modem. This happens irregularly but about 5-10 times/day.
> If I reboot back to FC3, the problem does not occur. Network
> configurations between the two (FC3/FC4) are as identical as I can make
> them. The first few times the problem occurs, sometimes retarting
> networking works, but eventually a full sys reboot is the only thing
> which works.
>
> Problem 2: slow local network.
>
> Under FC3 throughput on the LOCAL network (1GB lan) is very fast.
> Under FC4, the best I have seen is ONE transfer of about 1.2 MB/s - and
> throughput drops to as low as 50-75KB/s at times. Again, this does not
> occur under FC3 but does under FC4. Again the same setup as nearly as
> I can make it. No workaround found so far.
First question: are you using Nvidia proprietary drivers? Were you? Are
they from somewhere like livna, or did you download direct from Nvidia?
Do a /sbin/lsmod | grep forcedeth if you're not sure.
(Likewise, it might be a good idea to check that your /etc/modprobe.conf
files have the right aliases for eth0 and eth1).
Second question: I note you say that the Intel card occasionally
connects at 100 Mbit/s. Do you get *any* improvements at that speed? At
10 Mbit/s? You can use the ethtool utility to change this.
Make sure that you've got the same duplex settings.
Third question: are you up to date with FC4 updates? Were you up to date
with FC3 updates?
One other point: it looks like you're reading the digest. If you do
that, please be careful to replace the Subject: header with the original
one, so that we've got a chance of keeping your e-mails together. You
may find that the MIME version of the digest is more useful.
Use the link at the bottom of each e-mail to change your preferences.
Hope this helps,
James.
--
E-mail address: james | "But alas, we don't need a car, so I have a bus
@westexe.demon.co.uk | timetable and one day the buses will read it too."
| -- Telsa Gwynne
