From: George Nychis <gnychis@cmu.edu>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] how to debug RTNETLINK invalid argument?
Date: Tue, 23 May 2006 23:29:23 +0000 [thread overview]
Message-ID: <44739AD3.7090904@cmu.edu> (raw)
In-Reply-To: <44733597.4000208@cmu.edu>
Larry Brigman wrote:
> On 5/23/06, George Nychis <gnychis@cmu.edu> wrote:
>>
>>
>> Larry Brigman wrote:
>> > On 5/23/06, George Nychis <gnychis@cmu.edu> wrote:
>> >> Hey,
>> >>
>> >> I am getting an invalid argument trying to insert a qdisc:
>> >>
>> >> [root@emu-5 iproute2]# tc qdisc add dev eth0 root xcp capacity 50Mbit
>> >> limit 500
>> >> RTNETLINK answers: Invalid argument
>> >>
>> >> I'm not sure whats wrong here, because i can successfully insert this
>> >> qdisc on other computers of mine.
>> >>
>> >> How can i debug this?
>> >>
>> > Check to see which kernel versions you have on the boxes that work and
>> > the one that
>> > does not. Also check to see if you have the latest version of
>> > iproute2 installed on the
>> > machine that does not work.
>> >
>>
>> They are both running the exact same kernel and version of iproute2,
>> however they are in different environments, what could the environment
>> have to do with it?
>>
> Modules that are not loaded? modprobe.conf?
> lsmod on both boxes looking for specific networking modules.
>
What modules would qdisc's be dependent on? The weird thing is, netem
works on both machines... therefore I know qdisc's in general are
working. Lets just say its not working on my other machine, how do i go
about debugging it on the one machine alone?
- George
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next prev parent reply other threads:[~2006-05-23 23:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-23 16:17 [LARTC] how to debug RTNETLINK invalid argument? George Nychis
2006-05-23 16:23 ` Larry Brigman
2006-05-23 17:12 ` George Nychis
2006-05-23 17:51 ` Larry Brigman
2006-05-23 23:29 ` George Nychis [this message]
2006-05-24 0:21 ` Larry Brigman
2006-05-24 1:04 ` George Nychis
2006-05-24 1:40 ` Stephen Hemminger
2006-05-24 2:12 ` Luciano Ruete
2006-05-24 14:14 ` George Nychis
2006-05-24 15:06 ` George Nychis
2006-05-24 15:24 ` George Nychis
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