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SubjectRe: 2.6.18-mm2 - possible recursive locking detected
On Thu, Sep 28, 2006 at 01:46:23AM -0700, Andrew Morton wrote:
Hi,

.config is at http://tim.dnsalias.org/2.6.18-mm2.cfg.

Sep 30 08:38:17 zmei kernel: [ 285.197902]
Sep 30 08:38:19 zmei kernel: [ 285.197905] =============================================
Sep 30 08:38:19 zmei kernel: [ 285.204776] [ INFO: possible recursive locking detected ]
Sep 30 08:38:19 zmei kernel: [ 285.210163] 2.6.18-mm2 #1
Sep 30 08:38:19 zmei kernel: [ 285.212782] ---------------------------------------------
Sep 30 08:38:19 zmei kernel: [ 285.218168] swapper/0 is trying to acquire lock:
Sep 30 08:38:19 zmei kernel: [ 285.222777] (&q->lock){++..}, at: [<c0112f70>] __wake_up+0x15/0x3b
Sep 30 08:38:19 zmei kernel: [ 285.229114]
Sep 30 08:38:19 zmei kernel: [ 285.229115] but task is already holding lock:
Sep 30 08:38:19 zmei kernel: [ 285.234952] (&q->lock){++..}, at: [<c0112f70>] __wake_up+0x15/0x3b
Sep 30 08:38:19 zmei kernel: [ 285.241290]
Sep 30 08:38:19 zmei kernel: [ 285.241291] other info that might help us debug this:
Sep 30 08:38:19 zmei kernel: [ 285.247817] 4 locks held by swapper/0:
Sep 30 08:38:19 zmei kernel: [ 285.251561] #0: (&tp->rx_lock){-+..}, at: [<c020f350>] rtl8139_poll+0x42/0x405
Sep 30 08:38:19 zmei kernel: [ 285.259041] #1: (slock-AF_INET/1){-+..}, at: [<c02aa753>] tcp_v4_rcv+0x3fa/0x8eb
Sep 30 08:38:19 zmei kernel: [ 285.266700] #2: (af_callback_keys + sk->sk_family#3){-.-?}, at: [<c0278d83>] sock_def_readable+0x15/0x69
Sep 30 08:38:19 zmei kernel: [ 285.276454] #3: (&q->lock){++..}, at: [<c0112f70>] __wake_up+0x15/0x3b
Sep 30 08:38:19 zmei kernel: [ 285.283241]
Sep 30 08:38:19 zmei kernel: [ 285.283242] stack backtrace:
Sep 30 08:38:19 zmei kernel: [ 285.287688] [<c0103b65>] dump_trace+0x64/0x1cd
Sep 30 08:38:19 zmei kernel: [ 285.292243] [<c0103ce0>] show_trace_log_lvl+0x12/0x25
Sep 30 08:38:19 zmei kernel: [ 285.297405] [<c010431c>] show_trace+0xd/0x10
Sep 30 08:38:19 zmei kernel: [ 285.301780] [<c01043e4>] dump_stack+0x19/0x1b
Sep 30 08:38:19 zmei kernel: [ 285.306250] [<c013022d>] __lock_acquire+0x750/0x96c
Sep 30 08:38:19 zmei kernel: [ 285.311304] [<c013098c>] lock_acquire+0x4b/0x6b
Sep 30 08:38:19 zmei kernel: [ 285.316005] [<c02ca474>] _spin_lock_irqsave+0x2c/0x3c
Sep 30 08:38:19 zmei kernel: [ 285.321233] [<c0112f70>] __wake_up+0x15/0x3b
Sep 30 08:38:19 zmei kernel: [ 285.325638] [<c0178dd4>] ep_poll_safewake+0x91/0xc3
Sep 30 08:38:19 zmei kernel: [ 285.330760] [<c0179c69>] ep_poll_callback+0x83/0x8e
Sep 30 08:38:19 zmei kernel: [ 285.335888] [<c01122e5>] __wake_up_common+0x2f/0x53
Sep 30 08:38:19 zmei kernel: [ 285.340898] [<c0112f83>] __wake_up+0x28/0x3b
Sep 30 08:38:19 zmei kernel: [ 285.345312] [<c0278da8>] sock_def_readable+0x3a/0x69
Sep 30 08:38:20 zmei kernel: [ 285.350778] [<c02a1892>] tcp_data_queue+0x50f/0xa53
Sep 30 08:38:20 zmei kernel: [ 285.356232] [<c02a34c3>] tcp_rcv_established+0x5aa/0x64f
Sep 30 08:38:20 zmei kernel: [ 285.362077] [<c02a86f6>] tcp_v4_do_rcv+0x26/0x2f2
Sep 30 08:38:20 zmei kernel: [ 285.367322] [<c02aabd4>] tcp_v4_rcv+0x87b/0x8eb
Sep 30 08:38:20 zmei kernel: [ 285.372432] [<c02928e3>] ip_local_deliver+0x19c/0x265
Sep 30 08:38:20 zmei kernel: [ 285.378033] [<c029270b>] ip_rcv+0x453/0x48f
Sep 30 08:38:20 zmei kernel: [ 285.382769] [<c027e51a>] netif_receive_skb+0x1a6/0x239
Sep 30 08:38:20 zmei kernel: [ 285.388440] [<c020f5a5>] rtl8139_poll+0x297/0x405
Sep 30 08:38:20 zmei kernel: [ 285.393553] [<c027ff20>] net_rx_action+0x76/0x109
Sep 30 08:38:20 zmei kernel: [ 285.398782] [<c011dad0>] __do_softirq+0x70/0xf0
Sep 30 08:38:20 zmei kernel: [ 285.403459] [<c011db89>] do_softirq+0x39/0x55
Sep 30 08:38:20 zmei kernel: [ 285.407963] [<c011dcd5>] irq_exit+0x49/0x56
Sep 30 08:38:20 zmei kernel: [ 285.412295] [<c010537f>] do_IRQ+0x8f/0x9c
Sep 30 08:38:20 zmei kernel: [ 285.416408] [<c01035e1>] common_interrupt+0x25/0x2c
Sep 30 08:38:20 zmei kernel: [ 285.421393] DWARF2 unwinder stuck at common_interrupt+0x25/0x2c
Sep 30 08:38:20 zmei kernel: [ 285.427298]
Sep 30 08:38:20 zmei kernel: [ 285.428786] Leftover inexact backtrace:
Sep 30 08:38:20 zmei kernel: [ 285.428787]
Sep 30 08:38:20 zmei kernel: [ 285.434103] [<c010168b>] cpu_idle+0x72/0x9b
Sep 30 08:38:20 zmei kernel: [ 285.438383] [<c010064e>] rest_init+0x37/0x39
Sep 30 08:38:20 zmei kernel: [ 285.442742] [<c043d73b>] start_kernel+0x356/0x35e
Sep 30 08:38:20 zmei kernel: [ 285.447549] [<00000000>] 0x0
Sep 30 08:38:20 zmei kernel: [ 285.450541] =======================
--
Regards/Gruß,
Boris.





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