linux-kernel - RE: 3.14 regression: huge latency in read/select on tun

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Message-ID: <DUB123-W22F9256949F24CA9BB0890ED5E0@phx.gbl>
Date:	Mon, 21 Apr 2014 13:13:35 +0200
From:	Lukas Tribus <luky-37@...mail.com>
To:	Ortwin Glück <odi@....ch>,
	Eric Dumazet <eric.dumazet@...il.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"gerben@...byday.nl" <gerben@...byday.nl>,
	Vlad Yasevich <vyasevic@...hat.com>
Subject: RE: 3.14 regression: huge latency in read/select on tun

>> Hmm.. probably already solved by commit
>> 1e785f48d29a09b6cf96db7b49b6320dada332e1
>> ("net: Start with correct mac_len in skb_network_protocol")
>
> Indeed that fixes it. I have cherry picked that onto 3.14 and it works.
> That means 1e785f48 should be applied to stable 3.13.y and 3.14.y too.

Its already in davem's stable-queue:
http://patchwork.ozlabs.org/bundle/davem/stable/?state=*
http://patchwork.ozlabs.org/patch/339082/


Lukas

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