From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joanna Rutkowska <joanna@invisiblethingslab.com>
Subject: Re: The strange case of xen_netback not returning ARP
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Date: Sat, 26 May 2012 13:04:40 +0200
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To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Marek Marczykowski <marmarek@invisiblethingslab.com>
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On 05/22/12 21:53, Konrad Rzeszutek Wilk wrote:
> On Wed, May 16, 2012 at 02:18:27PM +0200, Joanna Rutkowska wrote:
>> Hello,
>>
>> I'm facing a rather strange problem with the netback interface. My set=
up
>> involves a netvm, which has some physical network interfaces assigned,=

>> and a client VM where a net front is running (exposed as eth0) and whi=
ch
>> is connected to that netvm (via vif42.0 interface, as seen in the netv=
m
>> on the dumps below).
>>
>> Now, the netvm has two physical network interfaces assigned:
>> 1) A standard Intel AGN (iwlwifi module, interface wlan0) -- this is
>> just a PCI devices assigned
>>
>> 2) A USB 3G modem (cdc_ncm module, usb0 interface) -- this has been ma=
de
>> available to the netvm by assigning a whole USB controller, where the =
3G
>> modem is connected to. This works fine.
>=20
> There are some patches posted about netback and SKB slots that might
> apply to the problem you guys are seeing.
>=20
Yes, indeed the SKB patch solved this problem, thanks!

joanna.


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