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Date:	Wed, 6 Aug 2008 23:15:16 -0700
From:	Stephen Hemminger <>
To:	David Miller <>
Subject: Re: [PATCH] net: trap attempts to modify noop qdisc

On Wed, 06 Aug 2008 23:11:59 -0700 (PDT)
David Miller <> wrote:

> From: Stephen Hemminger <>
> Date: Wed, 6 Aug 2008 23:08:50 -0700
> > Since noop qdisc is a singleton, it shouldn't end up with any other
> > qdisc's on it's list, and it shouldn't be deleted.
> > 
> > Dave, this should help you find the bug.
> Thanks.

I think the root of your problem (bad pun) is that the new code
is assuming that changes to the root are done with parent handle of 0,
but the API is for the parent handle to be TC_H_ROOT (0xFFFFFFFFU).

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