root@OpenWrt:/# ------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:226 dev_watchdog+0x19c/0x338()
NETDEV WATCHDOG: wifi0 (): transmit timed out
Modules linked in: ath_ahb ath_hal(P) batman_adv ip6t_REJECT ip6t_LOG ip6t_rt ip6t_hbh ip6t_mh ip6t_ipv6header ip6t_frag ip6t_eui64 ip6t_ah ip6table_raw ip6_queue ip6table_mangle ip6table_filter ip6_tables ebt_redirect ebt_mark ebt_vlan ebt_stp ebt_pkttype ebt_mark_m ebt_limit ebt_among ebt_802_3 ebtable_nat ebtable_filter ebtable_broute ebtables xt_quota xt_pkttype xt_physdev ipt_REJECT xt_TCPMSS ipt_LOG xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables tun ipv6
Call Trace:
[<800493a4>] dump_stack+0x8/0x34
[<80062a84>] warn_slowpath_common+0x70/0xb0
[<80062b04>] warn_slowpath_fmt+0x24/0x30
[<801c9c98>] dev_watchdog+0x19c/0x338
[<8006e1b8>] run_timer_softirq+0x17c/0x234
[<80068f20>] __do_softirq+0xa4/0x154
[<8006902c>] do_softirq+0x5c/0x98
[<80041444>] ret_from_irq+0x0/0x4
[<80041680>] r4k_wait+0x20/0x40
[<8004e910>] cpu_idle+0x24/0x4c
[<802a9a4c>] start_kernel+0x36c/0x384

---[ end trace 57451ac66d72b45d ]--