BUG - xen-netback stats interface limited to 32-bit values on 64 bit systems

[Atom2 <ariel.atom2@web2web.at>]

Hi guys,
I am forwarding this message after initially having confirmed with Ian 
Campbell on the user list that there's really an issue - please see 
further below.

I am currently running xen-4.3.3 on gentoo (dom0 is based on kernel 
3.17.7) and I am happy to help out by applying and testing patches on my 
version.

Thanks Atom2

-------- Weitergeleitete Nachricht --------
Betreff: Re: [Xen-users] BUG? vif RX/TX byte counters limited to 32-bit 
values on 64 bit systems
Datum: Mon, 9 Feb 2015 11:09:08 +0000
Von: Ian Campbell <ian.campbell@citrix.com>
An: Atom2 <ariel.atom2@web2web.at>
Kopie (CC): xen-users@lists.xen.org

On Mon, 2015-02-09 at 00:37 +0100, Atom2 wrote:
> Hi guys,
> I recently experienced that ifconfig executed within dom0 wraps around
> byte counters after reaching the 32-bit max value (2^32) for XEN vif
> interfaces. Specifically I was able to observe this for a XEN vif
> interface connected to a HVM domU running FreeBSD 10.0.

Looks like xen-netback was never converted to the 64 bit stats interface
like e.g. netfront was (see commit e00f85bec0a9 in ~v3.1).

I could have sworn netback changed eons ago -- I was clearly mistaken.

Ian.