Open-Mesh » batman-adv

new in rev 1104 (and probably before)
occurs when pinging

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[ INFO: possible recursive locking detected ]
2.6.25.7 #36
---------------------------------------------
swapper/0 is trying to acquire lock:
 (_xmit_ETHER){-+..}, at: [<c023d426>] +qdisc_run+0x94/0x184

but task is already holding lock:
 (_xmit_ETHER){-+..}, at: [<c023d426>] +qdisc_run+0x94/0x184

other info that might help us debug this:
4 locks held by swapper/0:
 #0:  (rcu_read_lock){..--}, at: [<c0232aeb>] dev_queue_xmit+0xc5/0x272
 #1:  (_xmit_ETHER){-+..}, at: [<c023d426>] +qdisc_run+0x94/0x184
 #2:  (rcu_read_lock){..--}, at: [<c288964a>] interface_tx+0x61/0x231 [batman_adv_core]
 #3:  (rcu_read_lock){..--}, at: [<c0232aeb>] dev_queue_xmit+0xc5/0x272

stack backtrace:
Pid: 0, comm: swapper Not tainted 2.6.25.7 #36
 [<c0136f6f>] +lock_acquire+0x7c7/0xaca
 [<c01375f2>] lock_acquire+0x4e/0x6a
 [<c023d426>] ? +qdisc_run+0x94/0x184
 [<c029444b>] _spin_lock+0x23/0x32
 [<c023d426>] ? +qdisc_run+0x94/0x184
 [<c023d426>] +qdisc_run+0x94/0x184
 [<c0232b65>] dev_queue_xmit+0x13f/0x272
 [<c2887595>] send_raw_packet+0x121/0x32b [batman_adv_core]
 [<c28896d9>] interface_tx+0xf0/0x231 [batman_adv_core]
 [<c02307e1>] dev_hard_start_xmit+0x1e6/0x242
 [<c023d436>] +qdisc_run+0xa4/0x184
 [<c0232b65>] dev_queue_xmit+0x13f/0x272
 [<c026d9a7>] arp_xmit+0x3d/0x42
 [<c026e2db>] arp_send+0x32/0x37
 [<c026eb90>] arp_solicit+0x1d0/0x1db
 [<c0237fd4>] neigh_timer_handler+0x275/0x2bd
 [<c0124ee2>] run_timer_softirq+0x102/0x15d
 [<c0237d5f>] ? neigh_timer_handler+0x0/0x2bd
 [<c0121c36>] +do_softirq+0x6d/0xea
 [<c0121cec>] do_softirq+0x39/0x55
 [<c0121dc7>] irq_exit+0x46/0x53
 [<c010f20f>] smp_apic_timer_interrupt+0x6f/0x80
 [<c0104947>] apic_timer_interrupt+0x33/0x38
 [<c0102640>] ? default_idle+0x4a/0x77
 [<c01025f6>] ? default_idle+0x0/0x77
 [<c01025ce>] cpu_idle+0x70/0x98
 [<c028dc4d>] rest_init+0x5d/0x5f
 =======================