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Date: Fri, 30 Apr 2010 21:20:12 +0300
From: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To: Eric Dumazet <eric.dumazet@...il.com>
Cc: Oleg Nesterov <oleg@...hat.com>,
David Miller <davem@...emloft.net>,
Ingo Molnar <mingo@...e.hu>,
Francois Romieu <romieu@...zoreil.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
netdev@...r.kernel.org, linux-kernel <linux-kernel@...r.kernel.org>
Subject: r8169 INFO: inconsistent lock state
Hello,
Yet another one (during resume):
kernel: [ 1968.334646]
kernel: [ 1968.334648] =================================
kernel: [ 1968.334651] [ INFO: inconsistent lock state ]
kernel: [ 1968.334654] 2.6.34-rc6-dbg #105
kernel: [ 1968.334656] ---------------------------------
kernel: [ 1968.334659] inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage.
kernel: [ 1968.334663] events/1/3854 [HC0[0]:SC0[0]:HE1:SE1] takes:
kernel: [ 1968.334666] (&(&table->hash[i].lock)->rlock){+.?...}, at: [<c1292ec4>] __udp4_lib_mcast_deliver+0x3c/0x143
kernel: [ 1968.334678] {IN-SOFTIRQ-W} state was registered at:
kernel: [ 1968.334681] [<c104fc8d>] __lock_acquire+0x2ba/0xc01
kernel: [ 1968.334688] [<c10509df>] lock_acquire+0x5e/0x75
kernel: [ 1968.334693] [<c12c366a>] _raw_spin_lock+0x28/0x58
kernel: [ 1968.334699] [<c1292ec4>] __udp4_lib_mcast_deliver+0x3c/0x143
kernel: [ 1968.334704] [<c12931a7>] __udp4_lib_rcv+0x1dc/0x3ac
kernel: [ 1968.334708] [<c1293389>] udp_rcv+0x12/0x14
kernel: [ 1968.334713] [<c127605f>] ip_local_deliver_finish+0xd2/0x137
kernel: [ 1968.334719] [<c12760fc>] NF_HOOK.clone.1+0x38/0x3f
kernel: [ 1968.334724] [<c1276220>] ip_local_deliver+0x3c/0x42
kernel: [ 1968.334728] [<c1275f2e>] ip_rcv_finish+0x25c/0x27e
kernel: [ 1968.334733] [<c12760fc>] NF_HOOK.clone.1+0x38/0x3f
kernel: [ 1968.334737] [<c12763c9>] ip_rcv+0x1a3/0x1c6
kernel: [ 1968.334741] [<c12593d7>] netif_receive_skb+0x38b/0x3ab
kernel: [ 1968.334747] [<fd20f911>] rtl8169_rx_interrupt+0x2de/0x3eb [r8169]
kernel: [ 1968.334756] [<fd211cde>] rtl8169_poll+0x28/0x15d [r8169]
kernel: [ 1968.334763] [<c12596b3>] net_rx_action+0x93/0x181
kernel: [ 1968.334767] [<c1032a72>] __do_softirq+0x88/0x10c
kernel: [ 1968.334773] [<c1032b25>] do_softirq+0x2f/0x47
kernel: [ 1968.334778] [<c1032de2>] irq_exit+0x38/0x75
kernel: [ 1968.334782] [<c1004489>] do_IRQ+0x79/0x8d
kernel: [ 1968.334787] [<c1002db5>] common_interrupt+0x35/0x3c
kernel: [ 1968.334791] [<c1246f43>] cpuidle_idle_call+0x6a/0xa0
kernel: [ 1968.334799] [<c100171b>] cpu_idle+0x89/0xbe
kernel: [ 1968.334802] [<c12b3d49>] rest_init+0xd1/0xd6
kernel: [ 1968.334807] [<c147e7bd>] start_kernel+0x339/0x33e
kernel: [ 1968.334813] [<c147e0c9>] i386_start_kernel+0xc9/0xd0
kernel: [ 1968.334818] irq event stamp: 63
kernel: [ 1968.334820] hardirqs last enabled at (63): [<c109d7ff>] kmem_cache_free+0x83/0x8f
kernel: [ 1968.334828] hardirqs last disabled at (62): [<c109d7a6>] kmem_cache_free+0x2a/0x8f
kernel: [ 1968.334833] softirqs last enabled at (60): [<c126400a>] rcu_read_unlock_bh+0x1c/0x1e
kernel: [ 1968.334839] softirqs last disabled at (58): [<c1263faf>] rcu_read_lock_bh+0x8/0x26
kernel: [ 1968.334845]
kernel: [ 1968.334846] other info that might help us debug this:
kernel: [ 1968.334849] 5 locks held by events/1/3854:
kernel: [ 1968.334851] #0: (events){+.+.+.}, at: [<c103c8e9>] worker_thread+0x128/0x23c
kernel: [ 1968.334859] #1: ((&(&tp->task)->work)){+.+...}, at: [<c103c8e9>] worker_thread+0x128/0x23c
kernel: [ 1968.334865] #2: (rtnl_mutex){+.+.+.}, at: [<c1262b8f>] rtnl_lock+0xf/0x11
kernel: [ 1968.334871] #3: (rcu_read_lock){.+.+..}, at: [<c125784b>] rcu_read_lock+0x0/0x2b
kernel: [ 1968.334877] #4: (rcu_read_lock){.+.+..}, at: [<c1275c56>] rcu_read_lock+0x0/0x2b
kernel: [ 1968.334884]
kernel: [ 1968.334885] stack backtrace:
kernel: [ 1968.334888] Pid: 3854, comm: events/1 Not tainted 2.6.34-rc6-dbg #105
kernel: [ 1968.334891] Call Trace:
kernel: [ 1968.334895] [<c12c1906>] ? printk+0xf/0x11
kernel: [ 1968.334901] [<c104e7d9>] valid_state+0x133/0x141
kernel: [ 1968.334906] [<c104e8b6>] mark_lock+0xcf/0x1bc
kernel: [ 1968.334911] [<c104e11f>] ? check_usage_backwards+0x0/0x72
kernel: [ 1968.334915] [<c104fcff>] __lock_acquire+0x32c/0xc01
kernel: [ 1968.334922] [<c129ee2d>] ? fib_table_lookup+0x81/0x8e
kernel: [ 1968.334927] [<c100772e>] ? __cycles_2_ns+0xf/0x3e
kernel: [ 1968.334932] [<c12671b6>] ? rcu_read_unlock+0x0/0x38
kernel: [ 1968.334937] [<c1007a30>] ? native_sched_clock+0x49/0x4f
kernel: [ 1968.334943] [<c10443a9>] ? sched_clock_local+0x11/0x11f
kernel: [ 1968.334948] [<c10509df>] lock_acquire+0x5e/0x75
kernel: [ 1968.334953] [<c1292ec4>] ? __udp4_lib_mcast_deliver+0x3c/0x143
kernel: [ 1968.334958] [<c12c366a>] _raw_spin_lock+0x28/0x58
kernel: [ 1968.334963] [<c1292ec4>] ? __udp4_lib_mcast_deliver+0x3c/0x143
kernel: [ 1968.334967] [<c1292ec4>] __udp4_lib_mcast_deliver+0x3c/0x143
kernel: [ 1968.334973] [<c104463c>] ? sched_clock_cpu+0x121/0x131
kernel: [ 1968.334978] [<c12735b5>] ? rcu_read_unlock+0x0/0x38
kernel: [ 1968.334983] [<c104463c>] ? sched_clock_cpu+0x121/0x131
kernel: [ 1968.334988] [<c10505c5>] ? __lock_acquire+0xbf2/0xc01
kernel: [ 1968.334994] [<c12735e2>] ? rcu_read_unlock+0x2d/0x38
kernel: [ 1968.334998] [<c1274034>] ? ip_route_input+0x101/0xaf4
kernel: [ 1968.335003] [<c12931a7>] __udp4_lib_rcv+0x1dc/0x3ac
kernel: [ 1968.335008] [<c1293389>] udp_rcv+0x12/0x14
kernel: [ 1968.335013] [<c127605f>] ip_local_deliver_finish+0xd2/0x137
kernel: [ 1968.335017] [<c1275f8d>] ? ip_local_deliver_finish+0x0/0x137
kernel: [ 1968.335022] [<c12760fc>] NF_HOOK.clone.1+0x38/0x3f
kernel: [ 1968.335026] [<c1276220>] ip_local_deliver+0x3c/0x42
kernel: [ 1968.335031] [<c1275f8d>] ? ip_local_deliver_finish+0x0/0x137
kernel: [ 1968.335035] [<c1275f2e>] ip_rcv_finish+0x25c/0x27e
kernel: [ 1968.335040] [<c1275cd2>] ? ip_rcv_finish+0x0/0x27e
kernel: [ 1968.335044] [<c12760fc>] NF_HOOK.clone.1+0x38/0x3f
kernel: [ 1968.335048] [<c12763c9>] ip_rcv+0x1a3/0x1c6
kernel: [ 1968.335052] [<c1275cd2>] ? ip_rcv_finish+0x0/0x27e
kernel: [ 1968.335057] [<c12593d7>] netif_receive_skb+0x38b/0x3ab
kernel: [ 1968.335066] [<fd20f911>] rtl8169_rx_interrupt+0x2de/0x3eb [r8169]
kernel: [ 1968.335073] [<fd20fc9b>] rtl8169_reset_task+0x33/0xe8 [r8169]
kernel: [ 1968.335077] [<c103c92b>] worker_thread+0x16a/0x23c
kernel: [ 1968.335082] [<c103c8e9>] ? worker_thread+0x128/0x23c
kernel: [ 1968.335088] [<fd20fc68>] ? rtl8169_reset_task+0x0/0xe8 [r8169]
kernel: [ 1968.335095] [<c103fa46>] ? autoremove_wake_function+0x0/0x2f
kernel: [ 1968.335099] [<c103c7c1>] ? worker_thread+0x0/0x23c
kernel: [ 1968.335103] [<c103f76a>] kthread+0x6a/0x6f
kernel: [ 1968.335108] [<c103f700>] ? kthread+0x0/0x6f
kernel: [ 1968.335112] [<c1002dc2>] kernel_thread_helper+0x6/0x10
kernel: [ 1968.335282] r8169 0000:02:00.0: eth0: link down
Sergey
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