Re: Entire LAN goes boo with 2.5.64

Anders Widman (andewid@tnonline.net)
Thu, 6 Mar 2003 14:58:18 +0100


> Sounds like a bpdu storm, are you somehow looping the network?

Not that I am aware of.. Running only one 8 port switch. Works good
with the 2.4.x kernels, but not with 2.5.. very odd.

//Anders

> -----Original Message-----
> From: Anders Widman [mailto:andewid@tnonline.net]
> Sent: Thursday, March 06, 2003 6:02 AM
> To: Erik Hensema
> Cc: linux-kernel@vger.kernel.org; erik@hensema.net
> Subject: Re: Entire LAN goes boo with 2.5.64

>> Anders Widman (andewid@tnonline.net) wrote:
>>>
>>>> Hello,
>>>
>>>> Trying out the 2.5.64 kernel to try to solve some IDE
> specific
>>>> problems with 2.4.x kernels. Now I have another problem. We have
> a
>>>> Windows LAN and a Windows XP with WinRoute Pro as gateway.
>>>
>>>> When booting the linux-machine with the 2.5.64 kernel the
> windows
>>>> machine goes to 100% cpu and the switch (Dlink) goes crazy
> (loosing
>>>> link, other machines get 100k/s instead of 10-12MiB/s etc).
>>>
>>>> I compiled the 2.5.64 with as few options as possible,
> no
>>>> netfilter, or IPSec or similar stuff.
>>>
>>>> What can be the problem?
>>>
>>> Forgot to say I am using a Intel Pro100+ NIC and I have tested
> with
>>> both the Becker driver and the Intel driver.

>> I've seen something similar [1] happen to a LAN with one Windows XP
>> machine running vcool: http://vcool.occludo.net/ . This is also
>> available for Linux (http://vcool.occludo.net/VC_Linux.html). Are you
>> running this patch or a similar one?

> Nope, no vcool or anything similar. But it is very odd that the switch
> would go crazy too!

>> [1] all machines were seeing frame errors on packets > 250 bytes; it
>> was a 10 mbit coax lan.

> Using 100mbit switched network.


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