.config: http://www.msxnet.org/config-2.6.20-rc5
=============================================
[ INFO: possible recursive locking detected ]
2.6.20-rc5 #1
---------------------------------------------
swapper/0 is trying to acquire lock:
(&q->lock){++..}, at: [<c0114dc0>] __wake_up+0x18/0x43
but task is already holding lock:
(&q->lock){++..}, at: [<c0114dc0>] __wake_up+0x18/0x43
other info that might help us debug this:
3 locks held by swapper/0:
#0: (slock-AF_INET/1){-+..}, at: [<c02d9ed8>] tcp_v4_rcv+0x673/0x85b
#1: (af_callback_keys + sk->sk_family#2){-.-?}, at: [<c029d137>] sock_def_readable+0x15/0x6e
#2: (&q->lock){++..}, at: [<c0114dc0>] __wake_up+0x18/0x43
stack backtrace:
[<c0130f78>] __lock_acquire+0xab7/0xd7b
[<c012e86a>] add_lock_to_list+0x36/0x8f
[<c0131293>] lock_acquire+0x57/0x6f
[<c0114dc0>] __wake_up+0x18/0x43
[<c0306f7a>] _spin_lock_irqsave+0x32/0x41
[<c0114dc0>] __wake_up+0x18/0x43
[<c0114dc0>] __wake_up+0x18/0x43
[<c017fd65>] ep_poll_safewake+0x9b/0xd4
[<c0180d5f>] ep_poll_callback+0x83/0xb4
[<c0114a1b>] __wake_up_common+0x39/0x59
[<c0114dda>] __wake_up+0x32/0x43
[<c029d18e>] sock_def_readable+0x6c/0x6e
[<c02d0562>] tcp_data_queue+0x421/0xbd1
[<c02d9ed8>] tcp_v4_rcv+0x673/0x85b
[<c02d22a5>] tcp_rcv_established+0x360/0x68b
[<c02d7c73>] tcp_v4_do_rcv+0x95/0x2d9
[<c02d9ed8>] tcp_v4_rcv+0x673/0x85b
[<c0306c43>] _spin_lock_nested+0x27/0x32
[<c02da0ae>] tcp_v4_rcv+0x849/0x85b
[<c02bf8f8>] ip_local_deliver+0x100/0x268
[<c0306c77>] _spin_lock+0x29/0x34
[<c02bf5f4>] ip_rcv+0x263/0x467
[<c0106c97>] enable_8259A_irq+0xd/0x4b
[<c0106c97>] enable_8259A_irq+0xd/0x4b
[<c02a34ca>] netif_receive_skb+0x1f3/0x2e7
[<c012ff8e>] trace_hardirqs_on+0x76/0x14a
[<c02a4d69>] process_backlog+0x79/0xf3
[<c02a4f7c>] net_rx_action+0x97/0x167
[<c011d0f7>] __do_softirq+0x4b/0x9c
[<c011d187>] do_softirq+0x3f/0x41
[<c0105228>] do_IRQ+0x52/0x8a
[<c0103708>] common_interrupt+0x24/0x34
[<c0103712>] common_interrupt+0x2e/0x34
[<e1a88e4a>] acpi_processor_idle+0x1bc/0x356 [processor]
[<e1a88e4d>] acpi_processor_idle+0x1bf/0x356 [processor]
[<c010133a>] cpu_idle+0x39/0x4e
[<c040a6b5>] start_kernel+0x28f/0x32a
[<c040a1cd>] unknown_bootoption+0x0/0x259
=======================