linux-kernel - Re: [PATCH 3/6] net: thunderx: Increase transmit queue length

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Message-ID: <1448983985.25582.35.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 01 Dec 2015 07:33:05 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Pavel Fedin <p.fedin@...sung.com>
Cc:	'Sunil Goutham' <sunil.kovvuri@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Sunil.Goutham@...iumnetworks.com,
	'Sunil Goutham' <sgoutham@...ium.com>
Subject: Re: [PATCH 3/6] net: thunderx: Increase transmit queue length

On Tue, 2015-12-01 at 17:40 +0300, Pavel Fedin wrote:
>  Hello!
> 
>  This one breaks networking on my machine:
> --- cut ---
> swiotlb: coherent allocation failed for device 0002:01:08.4 size=4198400
> CPU: 2 PID: 3655 Comm: NetworkManager Tainted: G        W  O    4.2.6+ #201
> Hardware name: Cavium ThunderX CN88XX

Are you sure 4.2.6 kernel is suitable for backporting this patch aimed
for linux-4.5 ?



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