On Mon, Jun 16, 2014 at 12:05 PM, Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx> wrote: > >> Am 16.06.2014 um 20:51 schrieb Cong Wang <cwang@xxxxxxxxxxxxxxxx>: >> >> On Mon, Jun 16, 2014 at 11:41 AM, Stefan Priebe - Profihost AG >> <s.priebe@xxxxxxxxxxxx> wrote: >>> >>>> Am 16.06.2014 um 20:05 schrieb Cong Wang <cwang@xxxxxxxxxxxxxxxx>: >>>> >>>> On Mon, Jun 16, 2014 at 5:51 AM, Stefan Priebe - Profihost AG >>>> <s.priebe@xxxxxxxxxxxx> wrote: >>>>> Hi, >>>>> >>>>> i'm using a vanilla 3.10.43 kernel and netconsole on top of a bridge. >>>>> >>>>> netconsole is used with vmbr0 (bridge) which is on top of bond0. >>>>> >>>>> If i want to add another bridge to vmbr0 is fails as long as netconsole >>>>> is in use. >>>>> >>>>> # brctl addif vmbr0 fwpr2004p0 >>>>> can't add fwpr2004p0 to bridge vmbr0: Unknown error 524 >>>>> >>>>> Kernel output: >>>>> netpoll: (null): fwpr2004p0 doesn't support polling, aborting >>>>> >>>>> If i do rmmod netconsole - everything is working fine again. >>>> >>>> This is expected, you can't add an interface which doesn't support >>>> netpoll to a bridge which is running netpoll. >>> >>> Thanks, so i can't use netconsole at a bridge used for vms? >> >> You can, but you need to make sure all the devices under >> this bridge support netpoll. Not considering mac learning, >> bridge just broadcasts all the packets to its ports, if one of them >> doesn't support netpoll, how could it work? > > Ok i was trying to add a veth device so this is the problematic device. > We can just add netpoll support to veth device, it should not be hard. I will work on it once net-next is open. Thanks.
