linux-kernel - [PATCH 0/2] fix kernel crash with macvtap on top of LRO

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Message-ID: <cover.1360191528.git.mst@redhat.com>
Date:	Thu, 7 Feb 2013 01:02:38 +0200
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	netdev@...r.kernel.org
Cc:	Eilon Greenstein <eilong@...adcom.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	Greg Rose <gregory.v.rose@...el.com>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>,
	Alex Duyck <alexander.h.duyck@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	Tushar Dave <tushar.n.dave@...el.com>,
	Jitendra Kalsaria <jitendra.kalsaria@...gic.com>,
	Sony Chacko <sony.chacko@...gic.com>, linux-driver@...gic.com,
	John Fastabend <john.r.fastabend@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	Jacob Keller <jacob.e.keller@...el.com>,
	linux-kernel@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	bhutchings@...arflare.com, eric.dumazet@...il.com
Subject: [PATCH 0/2] fix kernel crash with macvtap on top of LRO

At the moment, macvtap crashes are observed if macvtap is attached
to an interface with LRO enabled.
The crash in question is BUG() in macvtap_skb_to_vnet_hdr.
This happens because several drivers set gso_size but not gso_type
in incoming skbs.
The following patches fix this for
Additionally, cbf1de72324a8105ddcc3d9ce9acbc613faea17e is required
to fix this for broadcom - would it make sense to cherry-pick
this patch into 3.8?

I tested that the patch fixes the crash for ixgbe but
don't have qlogic hardware to fix.  I also only tested TCP.

Feedback wellcome.

Michael S. Tsirkin (2):
  ixgbe: fix gso type
  qlcnic: set gso_type

 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c  | 8 ++++++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 7 ++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

-- 
MST
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