netdev - Re: [PATCH] Re: iproute2 / tbf with large burst seems broken again

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Date:	Mon, 31 Aug 2009 08:58:49 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	denys@...p.net.lb, netdev@...r.kernel.org
Subject: Re: [PATCH] Re: iproute2 / tbf with large burst seems broken again

On Mon, Aug 31, 2009 at 01:37:38AM -0700, David Miller wrote:
> From: Denys Fedoryschenko <denys@...p.net.lb>
> Date: Mon, 31 Aug 2009 11:18:42 +0300
> 
> > 2.6.31-rc8 i got dmesg flooded. First message appearing even without patch, i 
> > will make sure now what is a reason of that (i have HTB classes on ifb0, and 
> > TBF on pppX).
> > 
> > [  155.199923] Attempt to kill tasklet from interrupt
> 
> We know the reasons for this message, it's an HTB regression and we're
> working on it.

There is a few more than HTB. Btw, IMHO, we don't risk much (if at
all) if we revert this qdisc_watchdog change. There is still CBQ
problem, where we could probably reconsider Thomas Gleixner's first
attempt with additional locking and irq disabling as a temporary
solution?

Jarek P.
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