The following reply was made to PR kern/154302; it has been noted by GNATS.

From: Janne Snabb <>
Subject: Re: kern/154302: Linux suffers from the same problem
Date: Tue, 5 Apr 2011 08:47:26 +0000 (UTC)

 Just an interesting note about this issue:
 I noticed that Linux suffers from the same problem. The Linux driver
 is somehow able to proceed even though getting the mac address
 fails. Therefore this Xen bug/feature does not cause headaches
 there, even though we need a workaround in FreeBSD driver.
 Have a look at Red Hat's virtualization guide:
 There you will see the following line:
 vif vif-0: 2 parsing device/vif/0/mac
 ...which is an indication of this very same error condition. 
 However according to the Red Hat documentation this just means that
 the PV drivers have successfully loaded :).
 Janne Snabb / EPIPE Communications -
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