From: Knut Petersen <Knut_Petersen@xxxxxxxxxxx> Date: Tue, 08 Feb 2011 08:51:22 +0100 > I bisected the problem with the following result: > > aa9421041128abb4d269ee1dc502ff65fb3b7d69 is the first bad commit > commit aa9421041128abb4d269ee1dc502ff65fb3b7d69 > Author: Changli Gao <xiaosuo@xxxxxxxxx> > Date: Sat Dec 4 02:31:41 2010 +0000 > > net: init ingress queue > > The dev field of ingress queue is forgot to initialized, then NULL > pointer dereference happens in qdisc_alloc(). > > Move inits of tx queues to netif_alloc_netdev_queues(). > > Signed-off-by: Changli Gao <xiaosuo@xxxxxxxxx> > Acked-by: Eric Dumazet <eric.dumazet@xxxxxxxxx> > Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> > > :040000 040000 dcbb6ab41c4308cba1bc6823d200dcf92aa402d8 > b5e190ec681d26ffe62d1d0214c4ef77b8034189 M net Indeed, this initialization is now too early for the sake of getting the lockdep bits right. The problem is that at the point in which we call netif_alloc_netdev_queue() we haven't initialized dev->type yet, it is therefore always zero when we setup the lockdep class for ->_xmit_lock. -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
