linux-kernel - netconsole breaks netpoll on bridge

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Message-ID: <539EE86E.6030806@profihost.ag>
Date:	Mon, 16 Jun 2014 14:51:58 +0200
From:	Stefan Priebe - Profihost AG <s.priebe@...fihost.ag>
To:	stephen@...workplumber.org, David Miller <davem@...emloft.net>
CC:	bridge@...ts.linux-foundation.org,
	Linux Netdev List <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: netconsole breaks netpoll on bridge

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.

Greets,
Stefan
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