netdev - Re: [PATCH net] pkt_sched: fq: avoid hang when quantum 0

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Message-ID: <1422985569.907.27.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 03 Feb 2015 09:46:09 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Kenneth Klette Jonassen <kennetkl@....uio.no>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net] pkt_sched: fq: avoid hang when quantum 0

On Tue, 2015-02-03 at 17:49 +0100, Kenneth Klette Jonassen wrote:
> Configuring fq with quantum 0 hangs the system, presumably because of a
> non-interruptible infinite loop. Either way quantum 0 does not make sense.
> 
> Reproduce with:
> sudo tc qdisc add dev lo root fq quantum 0 initial_quantum 0
> ping 127.0.0.1
> 
> Signed-off-by: Kenneth Klette Jonassen <kennetkl@....uio.no>
> ---

Acked-by: Eric Dumazet <edumazet@...gle.com>



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