linux-kernel - Boot failure when using NFS on OMAP based evms

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Date:	Wed, 6 Apr 2016 18:12:42 -0500
From:	"Franklin S Cooper Jr." <fcooper@...com>
To:	<samanthakumar@...gle.com>, <willemb@...gle.com>,
	<edumazet@...gle.com>, <tony@...mide.com>, <mugunthanvnm@...com>
CC:	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<davem@...emloft.net>, <kuznet@....inr.ac.ru>, <jmorris@...ei.org>,
	<yoshfuji@...ux-ipv6.org>, <kaber@...sh.net>, <nsekhar@...com>,
	<linux-omap@...r.kernel.org>
Subject: Boot failure when using NFS on OMAP based evms

Hi All,

Currently linux-next is failing to boot via NFS on my AM335x GP evm,
AM437x GP evm and Beagle X15. I bisected the problem down to the commit
"udp: remove headers from UDP packets before queueing".

I had to revert the following three commits to get things working again:

e6afc8ace6dd5cef5e812f26c72579da8806f5ac
udp: remove headers from UDP packets before queueing

627d2d6b550094d88f9e518e15967e7bf906ebbf
udp: enable MSG_PEEK at non-zero offset

b9bb53f3836f4eb2bdeb3447be11042bd29c2408
sock: convert sk_peek_offset functions to WRITE_ONCE


I'm using omap2plus_defconfig for my config.

Below bootlogs are from my AM335x GP evm:

Working
http://pastebin.ubuntu.com/15661989/ (Linux-next 3 patches reverted)

Failing
http://pastebin.ubuntu.com/15661318/ (Linux-next)