[ovs-dev] [bug] failed to add ovs bridge

Ben Pfaff blp at ovn.org
Thu May 18 02:40:57 UTC 2017


I don't plan to pursue this because it only triggers when you do
something that I don't think makes sense.  It could be a bug in the
Linux bridge, or in OVS, or in their interaction, or in libvirt.  If you
narrow down the problem, or find a fix, please let us know.

On Thu, May 18, 2017 at 12:47:51AM +0000, fukaige wrote:
> No. I just hit this in the situation. Do you think this is a bug? What's your next plan?
> 
> > -----Original Message-----
> > From: Ben Pfaff [mailto:blp at ovn.org]
> > Sent: Wednesday, May 17, 2017 11:55 PM
> > To: fukaige
> > Cc: dev at openvswitch.org
> > Subject: Re: [bug] failed to add ovs bridge
> > 
> > Do you still see failures when the Linux bridge is not involved at all?
> > 
> > On Wed, May 17, 2017 at 03:52:54AM +0000, fukaige wrote:
> > > I start a vm with its backend tap device "vnet0" attached to a Linux bridge,
> > then delete the bridge and vm.
> > > Next time, vm will start failed. this is as expected. But, seeing that
> > > linux bridge was already delelted; there is no reason that the OVS bridge with
> > the same name can not be created. What do you think?
> > >
> > > Thanks
> > > fukaige
> > >
> > > > -----Original Message-----
> > > > From: Ben Pfaff [mailto:blp at ovn.org]
> > > > Sent: Wednesday, May 17, 2017 11:37 AM
> > > > To: fukaige
> > > > Cc: dev at openvswitch.org
> > > > Subject: Re: [bug] failed to add ovs bridge
> > > >
> > > > On Wed, May 17, 2017 at 01:16:11AM +0000, fukaige wrote:
> > > > > I am using ovs-2.5.2 and get error when creating a bridge using
> > > > > “ovs-vsctl
> > > > add-br br-eth”
> > > >
> > > > > brctl addbr br0;ifconfig br0 up
> > > >
> > > > [...]
> > > >
> > > > > ifconfig br0 down; brctl delbr br0
> > > > >
> > > > > ovs-vsctl add-br br0
> > > > >
> > > > > ovs-vsctl del-br br0
> > > >
> > > > Wait, what?  Why are you mixing brctl and ovs-vsctl?  That makes no
> > sense.
> > > > Use the Linux bridge *or* OVS, not a mix of them.


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