netdev - Re: [BUG net-2.6 vlan/bonding] lockdep splats

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Message-ID: <20101027120334.GA11247@ff.dom.local>
Date:	Wed, 27 Oct 2010 12:03:34 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Jesse Gross <jesse@...ira.com>
Subject: Re: [BUG net-2.6 vlan/bonding] lockdep splats

On Wed, Oct 27, 2010 at 12:24:30PM +0200, Eric Dumazet wrote:
> On latest net-2.6 kernel I got following splat, not sure its related to
> vlan changes...

Seems to be even older. Could you try this patch?

Thanks,
Jarek P.
---

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index beb3b7c..bdb68a6 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -493,9 +493,9 @@ static void bond_vlan_rx_register(struct net_device *bond_dev,
 	struct slave *slave;
 	int i;
 
-	write_lock(&bond->lock);
+	write_lock_bh(&bond->lock);
 	bond->vlgrp = grp;
-	write_unlock(&bond->lock);
+	write_unlock_bh(&bond->lock);
 
 	bond_for_each_slave(bond, slave, i) {
 		struct net_device *slave_dev = slave->dev;
--
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