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RE: [Xen-users] Intel Quad NIC made visible in guest -> system crash

  • To: "Xen-users@xxxxxxxxxxxxxxxxxxx" <Xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "Joseph L. Casale" <JCasale@xxxxxxxxxxxxxxxxx>
  • Date: Tue, 9 Jun 2009 11:38:24 +0000
  • Accept-language: en-US
  • Cc:
  • Delivery-date: Tue, 09 Jun 2009 04:39:10 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AQHJ6OVgxNMfUp61JEOQQ4B5PqXiVZA+Gn6Q
  • Thread-topic: [Xen-users] Intel Quad NIC made visible in guest -> system crash

>we have two Intel Quad Nic 82576, PCI ID 8086:10E8 and use the igb
>driver on Debian 5.0.1.
>I used the pciback.hide XEN kernel parameter and made on of the NIC's
>interfaces available in a DomU.
>Now, when I am starting the VM, the system crashes (log attached)

W/o doing any research myself, I vaguely remember someone here having
similar results and suggesting that some nics have a design such that
some ports are tied together as a result of sharing components on the
nic itself. Basically, you may have a nic that is really only two
independent nics, each with two ports so you have to pass two in at
once etc.

A quick search or test should validate this...


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