Hi everybody! 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 cu, Knut -- 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