netdev - Re: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s

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Message-ID: <20131119184121.GN913@1wt.eu>
Date:	Tue, 19 Nov 2013 19:41:21 +0100
From:	Willy Tarreau <w@....eu>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	simon.guinot@...uanux.org, netdev@...r.kernel.org,
	Arnaud Ebalard <arno@...isbad.org>, edumazet@...gle.com,
	Cong Wang <xiyou.wangcong@...il.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s

On Tue, Nov 19, 2013 at 10:31:50AM -0800, Eric Dumazet wrote:
> On Tue, 2013-11-19 at 18:43 +0100, Willy Tarreau wrote:
> 
> > - #define MVNETA_TX_DONE_TIMER_PERIOD 10
> > + #define MVNETA_TX_DONE_TIMER_PERIOD (1000/HZ)
> > 
> 
> I suggested this in a prior mail :
> 
> #define MVNETA_TX_DONE_TIMER_PERIOD 1

Ah sorry, I remember now.

> But apparently it was triggering strange crashes...

Ah, when a bug hides another one, it's the situation I prefer, because
by working on one, you end up fixing two :-)

Cheers,
Willy

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