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

[Ian Campbell <ian.campbell@citrix.com>]

create ^
thanks

On Thu, 2015-02-12 at 20:47 +0100, Atom2 wrote:
> 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.

FWIW based on e00f85bec0a9 this seems like it would be a reasonably
straight forward introductory kernel hacking exercise (mostly copying
e00f85bec0a9) if you are interested I could help guide/mentor you
through it.

Ian.

> 
> 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.
> 
> 
>