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Date:      Tue, 5 Apr 2011 08:50:12 GMT
From:      Janne Snabb <snabb@epipe.com>
To:        freebsd-xen@FreeBSD.org
Subject:   Re: kern/154302: Linux suffers from the same problem
Message-ID:  <201104050850.p358oCoh042898@freefall.freebsd.org>

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

From: Janne Snabb <snabb@epipe.com>
To: bug-followup@FreeBSD.org
Cc:  
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:
 
 http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Troubleshooting_the_Xen_para_virtualized_drivers-Verifying_the_para_virtualized_drivers_have_successfully_loaded.html
 
 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
 snabb@epipe.com - http://epipe.com/



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