AW: AW: Slow Network with rl0 and 5.3
Karl M. Joch
k.joch at ctseuro.com
Tue Feb 8 23:39:46 PST 2005
we will test the patch today. thanks for your work.
btw, we had an very interesting error with rl cards which we first thought
this was related to the bug but then have to learn that there are far more
possibilities. on an MSI motherboard we had 3 rl cards installed. it was
possible to dump about 110 GB over the wire without any error. but after
that when users (samba, http proxy ...) worked) the machine slowed down
heavily, writing packet oversized errors on the console.we changed the cards
against 3Com nics and 2 of them simply was dead. investigation further
showed, that the pci slots on this motherboard are shared and also with acpi
and different interrupts the rl´s brought the error and the 3Coms was dead.
after changing the motherboard to another brand everything (with both cards)
> -----Ursprüngliche Nachricht-----
> Von: owner-freebsd-stable at freebsd.org
> [mailto:owner-freebsd-stable at freebsd.org] Im Auftrag von Max Laier
> Gesendet: Mittwoch, 09. Februar 2005 00:16
> An: freebsd-stable at freebsd.org
> Cc: Karl M. Joch; Ísak Ben.; Dorian Büttner
> Betreff: Re: AW: Slow Network with rl0 and 5.3
> On Thursday 03 February 2005 18:46, I wrote:
> > > > EVERYBODY: Could you please check if you have a rl(4)
> driven NIC and
> > > > check if you experienced a speed degradation as well.
> Please let me
> > > > know either way with information about the chipset on your NIC.
> > > > Thanks!
> > PR kern/61448 might apply to you. Can you try the diff
> offered there and
> > follow-up with your findings?
> Finally found some time to look at the issue. The patch
> there was good, but
> needed some tweaking. Everybody (having problems) with rl
> should check this
> patch - please. I plan to commit it soon, so please scream
> if it breaks
> things for you.
> Karl, can you verify that this patch solves the issue as well
> (i.e. can you
> backout the one I send you earlier?) - Thanks!
> > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/61448
> or: http://people.freebsd.org/~mlaier/if_rl.c.PR.patch directly.
> /"\ Best regards, | mlaier at freebsd.org
> \ / Max Laier | ICQ #67774661
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