RE: [Xen-users] Error: Device 0 (vif) could notbeconnected. Hotplugscripts not working

[Mike Viau <viaum@xxxxxxxxxxxxxxx>]

Not sure if I should start a thread for this, but I've been running Xen with a xenified kernel (using the attached .config). I have notice my LAN traffic to my Xen host is bottlenecking now 1MB/s.

I would have thought to believe it was merely just a performance impact due to some Xen overhead. When I rolled back to the Debain xen kernel however my baremetel performance was back at ~4.5MB/s.

I was hoping one could suggest options in the .config that might be modified in order to obtain better LAN performance to the Xen host.

 
-M




> Subject: RE: [Xen-users] Error: Device 0 (vif) could notbeconnected.Hotplugscripts not working
> Date: Thu, 25 Feb 2010 14:04:36 +0000
> From: itobin@xxxxxxxxxxxxx
> To: pasik@xxxxxx
> CC: bderzhavets@xxxxxxxxx; mike.viau@xxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
>
> I didn't even think to look in there, i just enabled the options in the processors features
>
> Oh well, one to remember lol :)
>
> Thanks
>
> Ian
>
>
>
> -----Original Message-----
> From: Pasi Kärkkäinen [mailto:pasik@xxxxxx]
> Sent: 25 February 2010 09:34
> To: Ian Tobin
> Cc: Boris Derzhavets; Mike Viau; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Error: Device 0 (vif) could notbeconnected.Hotplugscripts not working
>
> On Wed, Feb 24, 2010 at 11:11:26PM -0000, Ian Tobin wrote:
> > Think i found it
> >
> > Device drivers -à <*> Xen backend network device
> > I have compiled the kernel with that option and now it works at last!
> >
> > Thanks for the help guys
> >
> >
>
> Yeah.. netback is definitely a requirement for the vifs to work :)
> I didn't even suspect you might be missing that.. oh well.
>
> -- Pasi
>
> >
> > Ian
> >
> >
> >
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Boris
> > Derzhavets
> > Sent: 24 February 2010 17:13
> > To: Mike Viau
> > Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> > Subject: RE: [Xen-users] Error: Device 0 (vif) could not
> > beconnected.Hotplugscripts not working
> >
> >
> >
> > Hard link <*> Network Bridging and XEN-> Backend Drivers in Dom0 <*>
> > It fixes your config. That's all.
> >
> > B.
> >
> > --- On Wed, 2/24/10, Mike Viau <viaum@xxxxxxxxxxxxxxx> wrote:
> >
> > From: Mike Viau <viaum@xxxxxxxxxxxxxxx>
> > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > To: bderzhavets@xxxxxxxxx
> > Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> > Date: Wednesday, February 24, 2010, 10:08 AM
> >
> > Non-working .config attached.
> >
> > I have been doing my best to try and read up on the options that were
> > setup differently in the working .config you sent me.
> >
> > Do you know if JF setup some sort of wiki for configuring a xenified
> > kernel?
> >
> > Thanks.
> >
> >
> > -M
> >
> > --------------------------------------------------------------------------
> >
> > Date: Wed, 24 Feb 2010 06:59:23 -0800
> > From: bderzhavets@xxxxxxxxx
> > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > To: mike.viau@xxxxxxxxxxxxxxx
> > CC: xen-users@xxxxxxxxxxxxxxxxxxx
> >
> > Hi Mike,
> > Submit your .config , please . I would suspect you just missed bridged
> > networking
> > linking . I always tune manually configs for xenified and pvops kernels
> > for about
> > 1.5 years. Several times i asked for JF's support, but there were not
> > network hotplug
> > issues
> >
> > Boris.
> >
> > --- On Tue, 2/23/10, Mike Viau <viaum@xxxxxxxxxxxxxxx> wrote:
> >
> > From: Mike Viau <viaum@xxxxxxxxxxxxxxx>
> > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > To: itobin@xxxxxxxxxxxxx
> > Cc: bderzhavets@xxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx, pasik@xxxxxx
> > Date: Tuesday, February 23, 2010, 6:17 PM
> >
> > I am using udev 0.125-7+lenny3 with a xenified 2.6.31.12 kernel. I was
> > getting "Error: Device 0 (vif) could not be connected.Hotplugscripts not
> > working" initially, but by using the .config provided thankfully by Boris
> > (bderzhavets@xxxxxxxxx) with the exact same setup, the error went away.
> >
> > I see you are using the PV OPS kernel though......
> >
> > -M
> >
> > > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > > Date: Tue, 23 Feb 2010 22:59:29 +0000
> > > From: itobin@xxxxxxxxxxxxx
> > > To: itobin@xxxxxxxxxxxxx; pasik@xxxxxx
> > > CC: bderzhavets@xxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
> > >
> > > Ignore that, it was a slight error in the disk line.
> > >
> > > Im lost with this, its very odd.
> > >
> > > -----Original Message-----
> > > From: Ian Tobin
> > > Sent: 23 February 2010 22:48
> > > To: Ian Tobin; Pasi Kärkkäinen
> > > Cc: Boris Derzhavets; xen-users@xxxxxxxxxxxxxxxxxxx
> > > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > >
> > > Going back through the log, only thing i found was this
> > >
> > > raise XendError("Unknown device type: %s" % name)
> > > XendError: Unknown device type: None
> > >
> > > Not sure if that is the cause
> > >
> > >
> > > -----Original Message-----
> > > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Ian Tobin
> > > Sent: 23 February 2010 22:38
> > > To: Pasi Kärkkäinen
> > > Cc: Boris Derzhavets; xen-users@xxxxxxxxxxxxxxxxxxx
> > > Subject: RE: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplugscripts not working
> > >
> > > Well i have upgraded to squeeze which has installed udev (151-2)
> > >
> > > This still hasn't has any affect :(
> > >
> > > Also grub2 got installed and it messed up everything, i managed to get
> > it back to grub-legacy but thats going to caused more headaches for
> > people.
> > >
> > > Any other ideas?
> > >
> > > thanks
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: Pasi Kärkkäinen [mailto:pasik@xxxxxx]
> > > Sent: 23 February 2010 20:11
> > > To: Ian Tobin
> > > Cc: Boris Derzhavets; xen-users@xxxxxxxxxxxxxxxxxxx
> > > Subject: Re: [Xen-users] Error: Device 0 (vif) could not be
> > connected.Hotplug scripts not working
> > >
> > > On Tue, Feb 23, 2010 at 08:06:50PM -0000, Ian Tobin wrote:
> > > > Confirmed,
> > > >
> > > >
> > > >
> > > > Exact same issue on 32bit. I don't think you can use lenny without
> > udev
> > > > being installed??
> > > >
> > >
> > > So maybe you need a newer udev version then?
> > >
> > > -- Pasi
> > >
> > > >
> > > >
> > > >
> > > >
> > > > From: Boris Derzhavets [mailto:bderzhavets@xxxxxxxxx]
> > > > Sent: 23 February 2010 19:34
> > > > To: Ian Tobin; Pasi Kärkkäinen
> > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> > > > Subject: Re: [Xen-users] Error: Device 0 (vif) could not be connected.
> > > > Hotplug scripts not working
> > > >
> > > >
> > > >
> > > > I would guess udev is installed, but 2.6.31.X kernel is to high for
> > this
> > > > udev.
> > > > It doesn't happen on Jaunty&Karmic Servers (9.04, 9.10)
> > > >
> > > > Boris.
> > > > P.S. Just a guess.
> > > >
> > > > --- On Tue, 2/23/10, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > > >
> > > > From: Pasi Kärkkäinen <pasik@xxxxxx>
> > > > Subject: Re: [Xen-users] Error: Device 0 (vif) could not be connected.
> > > > Hotplug scripts not working
> > > > To: "Ian Tobin" <itobin@xxxxxxxxxxxxx>
> > > > Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> > > > Date: Tuesday, February 23, 2010, 2:24 PM
> > > >
> > > > On Tue, Feb 23, 2010 at 01:30:12PM -0000, Ian Tobin wrote:
> > > > > Hello,
> > > > >
> > > > > Can anyone help?
> > > > >
> > > > > I have again installed a fresh OS Debian Lenny 64bit and done the
> > > > > following
> > > > >
> > > > > Xen:
> > > > > downloaded xen-3.4.2.tar.gz and extract it
> > > > > cd xen-3.4.2
> > > > > make xen
> > > > > make tools
> > > > > make stubdom
> > > > >
> > > > > cd dist/install/
> > > > > cp -R * /
> > > > >
> > > > > downloaded Jeremys kernel
> > > > >
> > > > > make menuconfig
> > > > > make bzImage
> > > > > make modules
> > > > > make modules_install
> > > > > add to /etc/fstab none /proc/xen xenfs defaults 0 0
> > > > > cp -a arch/x86/boot/bzImage /boot/vmlinuz-2.6.31.6
> > > > > cp -a System.map /boot/System.map-2.6.31.6
> > > > > cp -a .config /boot/config-2.6.31.6
> > > > > depmod -a
> > > > > update-initramfs -c -k 2.6.31.6
> > > > >
> > > > > added grub line and rebooted. XEN starts but DomU just keeps coming
> > up
> > > > > about hotplug scripts not working.
> > > > >
> > > > > Anyone?
> > > > >
> > > >
> > > > Does "xm log" have more details about the error? Do you have udev
> > > > installed in dom0?
> > > >
> > > > What's your udev version?
> > > >
> > > > -- Pasi
> > > >
> > > > > Thanks
> > > > >
> > > > > Ian
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: Tej [mailto:[1]bewith.tej@xxxxxxxxx]
> > > > > Sent: 20 February 2010 12:04
> > > > > To: Ian Tobin
> > > > > Cc: [2]xen-users@xxxxxxxxxxxxxxxxxxx
> > > > > Subject: Re: [Xen-users] Error: Device 0 (vif) could not be
> > connected.
> > > > > Hotplug scripts not working
> > > > >
> > > > > On Sat, Feb 20, 2010 at 5:25 AM, Ian Tobin <[3]itobin@xxxxxxxxxxxxx>
> > > > wrote:
> > > > > > Hi guys,
> > > > > >
> > > > > >
> > > > > >
> > > > > > Familiar issue.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Running pv_ops kernel 2.6.31.6 64 bit on Debian Lenny
> > > > > >
> > > > > >
> > > > > >
> > > > > > Everytime i build the server i get the same issue. The build goes
> > well
> > > > > but
> > > > > > as soon as i try and start a DomU i get this problem.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Have checked the bridge everytime which exists, checked vif config
> > > > > which is
> > > > > > fine and also have tried live configs from another server to no
> > > > > effect.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Logs show nothing.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Interesting i have found if i have 2 ssh windows open i can issue
> > xm
> > > > > create
> > > > > > domu in one window and while it hangs jump to the other and issue
> > xm
> > > > > unpause
> > > > > > domu and then jump back to the other and issue ctrl+c the and the
> > domU
> > > > > will
> > > > > > start with networking!
> > > > > >
> > > > > >
> > > > > >
> > > > > > Im really puzzled but it sounds to me like a bug in one of the xen
> > > > > scripts.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Anyone else had this issue?
> > > > >
> > > > > I had this issue couple of time.... But I go for some quick fix for
> > it.
> > > > > what your udev directory says:
> > > > >
> > > > > # ls -l /etc/udev/rules.d
> > > > >
> > > > > If not hotplug scripts exist, copy it from tools (could be some
> > > > > dependency issue e.g uuid not installed )
> > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > Ian
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > _______________________________________________
> > > > > > Xen-users mailing list
> > > > > > [4]Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > > > [5]http://lists.xensource.com/xen-users
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > Xen-users mailing list
> > > > > [6]Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > > [7]http://lists.xensource.com/xen-users
> > > >
> > > > _______________________________________________
> > > > Xen-users mailing list
> > > > [8]Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > [9]http://lists.xensource.com/xen-users
> > > >
> > > >
> > > >
> > > > References
> > > >
> > > > Visible links
> > > > 1. file:///mc/compose?to=bewith.tej@xxxxxxxxx
> > > > 2. file:///mc/compose?to=xen-users@xxxxxxxxxxxxxxxxxxx
> > > > 3. file:///mc/compose?to=itobin@xxxxxxxxxxxxx
> > > > 4. file:///mc/compose?to=Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > 5. http://lists.xensource.com/xen-users
> > > > 6. file:///mc/compose?to=Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > 7. http://lists.xensource.com/xen-users
> > > > 8. file:///mc/compose?to=Xen-users@xxxxxxxxxxxxxxxxxxx
> > > > 9. http://lists.xensource.com/xen-users
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-users mailing list
> > > Xen-users@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-users
> >
> > --------------------------------------------------------------------------
> >
> > Live connected with Hotmail on your phone. [1]Learn more.
> >
> >
> >
> > --------------------------------------------------------------------------
> >
> > Live connected with Hotmail on your phone. [2]Learn more.
> >
> >
> >
> > References
> >
> > Visible links
> > 1. http://go.microsoft.com/?linkid=9708117
> > 2. http://go.microsoft.com/?linkid=9708117
>
>
>
> _______________________________________________
> Xen-users mailing list
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> http://lists.xensource.com/xen-users

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