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From: Thomas Mierau <tmi@wikon.de>
To: Willy Tarreau <willy@w.ods.org>
Cc: Willy Tarreau <willy@w.ods.org>, linux-kernel@vger.kernel.org
Subject: Re: 2.4.19-ac4 IRQ messup?
Date: Tue, 6 Aug 2002 16:44:03 +0200	[thread overview]
Message-ID: <200208061643.56773.tmi@wikon.de> (raw)
In-Reply-To: <20020806100101.GA20758@alpha.home.local>

I switched cables, checked the switch etc....
nothing helps.
I installed an extra PCI card which came up as eth0, making the internal ones 
eth1 and eth2. No I started pinging with eth0, which was giving me strange 
effects again.
eth0 = 192.168.47.11
eth1 = 192.168.47.12
eth2 = 192.168.47.13
I took a tcpdump on the receiving box. It was kind of interesting.
There were arp packages askin who is 192.168.47.11 and answers coming back 
with two dofferent MAC-Id's One from the eth0 and the other one from the eth2 
which was actually configured on  IP .13
 After I shut down etho1 and 2 and ran the box with "noapic" it preforms 
perfect with the external card.
Either the NIC's are broken, or the driver  or whatever. I hate that !!


> On Tue, Aug 06, 2002 at 11:39:43AM +0200, Thomas Mierau wrote:
> > Thanks,
> > I looked it up its called watchdog (what else). It was set to 5000ms and
> > I changed it to 300ms. But the result is : no change!
>
> by "no change", you mean "still loss of 5s" ?
> If this is the case, are you sure the switch port you are connected to is
> in full duplex too ? does it detect receive errors or carrier lost ? I
> believe that cisco switches in "spanning tree portfast" mode block the port
> during 5s after a renegociation. It's easy to detect because the port's led
> becomes orange.
>
> perhaps you can switch the 2 NIC's cables to check if the problem follows
> the cable or the NIC.
>
> else I have no other clue ...
>
> Regards,
> Willy


  reply	other threads:[~2002-08-06 14:39 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-08-05 21:03 Heavy Clock-Drift after update from Kernel 2.4.9 to 2.4.19 Matthias Schniedermeyer
2002-08-05 22:26 ` Alan Cox
2002-08-05 22:17   ` Matthias Schniedermeyer
2002-08-06  8:14   ` 2.4.19-ac4 IRQ messup? Thomas Mierau
2002-08-06  8:39     ` Willy Tarreau
2002-08-06  9:39       ` Thomas Mierau
2002-08-06 10:01         ` Willy Tarreau
2002-08-06 14:44           ` Thomas Mierau [this message]
2002-08-06 16:50             ` Henning P. Schmiedehausen

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