Hi!

I'm facing this problem, it is very easy to reproduce.

1- Host: Ubuntu 12.04.3 (Linux 3.8 or 3.11);
2- KVM (1.5.0 from Ubuntu Cloud Archive, new KVM for LTS);
3- OpenVSwitch 2.0.0 compiled for Ubuntu LTS by me (using `dpkg-buildpackage` 
on the host itself);
4- Guest: PFSense 2.1 with VirtIO drivers;

Every time you access the PFSense web GUI, just every single click,
triggers the following error at host kern.log:

http://paste.ubuntu.com/6800489/

Also, this very same problem happens with Ubuntu 14.04 with Linux 3.13 /
KVM 1.7.0.

NOTE: You'll need to manuaaly enable VirtIO for your PFSense, follow it
here: https://doc.pfsense.org/index.php/VirtIO_Driver_Support

BTW, all my KVM Guests running behind this bnx2 NIC, have poor network
performance. For example:

* From client-x to host: iperf shows ~900Mbits/s
* From client-x to guest-1 (ubuntu): iperf shows ~150Mbits/s
* From client-x to guest-2 (pfsense - e1000): iperf shows ~200Mbits/s
* From client-x to guest-2 (pfsense - virtio): iperf shows ~120MBtis/s

So, I starting to think that the bnx2 drivers for Linux is crap.

What do you guys think?!

Tks!
Thiago

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https://bugs.launchpad.net/bugs/1014350

Title:
  WARNING: at /build/buildd/linux-3.2.0/net/core/dev.c:1960
  skb_gso_segment+0x341/0x3b0()

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