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Date: Tue, 17 Jun 2014 07:35:32 -0400 From: Neil Horman <nhorman@...driver.com> To: Cong Wang <cwang@...pensource.com> Cc: Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>, Stephen Hemminger <stephen@...workplumber.org>, David Miller <davem@...emloft.net>, bridge@...ts.linux-foundation.org, Linux Netdev List <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: netconsole breaks netpoll on bridge On Mon, Jun 16, 2014 at 11:05:57AM -0700, Cong Wang wrote: > On Mon, Jun 16, 2014 at 5:51 AM, Stefan Priebe - Profihost AG > <s.priebe@...fihost.ag> 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. > > You should stop netpoll before adding it. Or alternatively, update the driver for the fwpr2004p0 to support netpoll, and you'll be able to add it with netpoll running Neil > -- > To unsubscribe from this list: send the line "unsubscribe netdev" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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