Attachment 313327 Details for Bug 457714 – lockdep spew

lockdep spew

lockdep.txt (text/plain), 22.27 KB, created by David Nielsen on 2008-08-04 07:16:26 UTC

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Creator: David Nielsen

Created: 2008-08-04 07:16:26 UTC

Size: 22.27 KB

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obsolete

>=========================================================
>[ INFO: possible irq lock inversion dependency detected ]
>2.6.27-0.215.rc1.git4.fc10.x86_64 #1
>---------------------------------------------------------
>swapper/0 just changed the state of lock:
> (_xmit_IEEE80211#2){-+..}, at: [<ffffffff8129921d>] __qdisc_run+0xc2/0x215
>but this lock took another, soft-irq-unsafe lock in the past:
> (&intf->lock){--..}
>
>and interrupts could create inverse lock ordering between them.
>
>
>other info that might help us debug this:
>3 locks held by swapper/0:
> #0:  (rcu_read_lock){..--}, at: [<ffffffff8128697b>] dev_queue_xmit+0x14d/0x493
> #1:  (_xmit_ETHER#2){-+..}, at: [<ffffffff8129921d>] __qdisc_run+0xc2/0x215
> #2:  (rcu_read_lock){..--}, at: [<ffffffff8128697b>] dev_queue_xmit+0x14d/0x493
>
>the first lock's dependencies:
>-> (_xmit_IEEE80211#2){-+..} ops: 0 {
>   initial-use  at:
>                        [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                        [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                        [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                        [<ffffffff8129921d>] __qdisc_run+0xc2/0x215
>                        [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>                        [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>                        [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>                        [<ffffffffa01d91ab>] ieee80211_sta_scan_work+0x17c/0x1ad [mac80211]
>                        [<ffffffff810545b4>] run_workqueue+0x100/0x207
>                        [<ffffffff810547b8>] worker_thread+0xfd/0x111
>                        [<ffffffff8105816c>] kthread+0x4e/0x7b
>                        [<ffffffff810118a9>] child_rip+0xa/0x11
>                        [<ffffffffffffffff>] 0xffffffffffffffff
>   in-softirq-W at:
>                        [<ffffffffffffffff>] 0xffffffffffffffff
>   hardirq-on-W at:
>                        [<ffffffff8106631d>] __lock_acquire+0x248/0xaa7
>                        [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                        [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                        [<ffffffff8129921d>] __qdisc_run+0xc2/0x215
>                        [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>                        [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>                        [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>                        [<ffffffffa01d91ab>] ieee80211_sta_scan_work+0x17c/0x1ad [mac80211]
>                        [<ffffffff810545b4>] run_workqueue+0x100/0x207
>                        [<ffffffff810547b8>] worker_thread+0xfd/0x111
>                        [<ffffffff8105816c>] kthread+0x4e/0x7b
>                        [<ffffffff810118a9>] child_rip+0xa/0x11
>                        [<ffffffffffffffff>] 0xffffffffffffffff
> }
> ... key      at: [<ffffffff81cd4690>] netdev_xmit_lock_key+0x190/0x1c0
> -> (ftrace_shutdown_lock){++..} ops: 0 {
>    initial-use  at:
>                          [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>                          [<ffffffff81094e2e>] ftrace_record_ip+0xf5/0x22b
>                          [<ffffffff81010164>] mcount_call+0x5/0x31
>                          [<ffffffff815298ce>] kernel_init+0x1c5/0x219
>                          [<ffffffff810118a9>] child_rip+0xa/0x11
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    in-hardirq-W at:
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    in-softirq-W at:
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>  }
>  ... key      at: [<ffffffff8148d588>] ftrace_shutdown_lock+0x18/0x40
> ... acquired at:
>   [<ffffffff81066a2a>] __lock_acquire+0x955/0xaa7
>   [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>   [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>   [<ffffffff81094e2e>] ftrace_record_ip+0xf5/0x22b
>   [<ffffffff81010164>] mcount_call+0x5/0x31
>   [<ffffffff81286695>] dev_hard_start_xmit+0x218/0x29b
>   [<ffffffff81299259>] __qdisc_run+0xfe/0x215
>   [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>   [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>   [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>   [<ffffffffa01d91ab>] ieee80211_sta_scan_work+0x17c/0x1ad [mac80211]
>   [<ffffffff810545b4>] run_workqueue+0x100/0x207
>   [<ffffffff810547b8>] worker_thread+0xfd/0x111
>   [<ffffffff8105816c>] kthread+0x4e/0x7b
>   [<ffffffff810118a9>] child_rip+0xa/0x11
>   [<ffffffffffffffff>] 0xffffffffffffffff
>
> -> (&queue->lock){+...} ops: 0 {
>    initial-use  at:
>                          [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>                          [<ffffffffa0225328>] rt2x00queue_reset+0x1b/0x48 [rt2x00lib]
>                          [<ffffffffa0225370>] rt2x00queue_alloc_entries+0x1b/0xca [rt2x00lib]
>                          [<ffffffffa0225dc7>] rt2x00queue_initialize+0x2d/0x152 [rt2x00lib]
>                          [<ffffffffa0224139>] rt2x00lib_start+0x64/0xf0 [rt2x00lib]
>                          [<ffffffffa02248cb>] rt2x00mac_start+0x2e/0x37 [rt2x00lib]
>                          [<ffffffffa01d0ae3>] ieee80211_open+0x255/0x567 [mac80211]
>                          [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                          [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                          [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                          [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                          [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                          [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                          [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                          [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                          [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                          [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                          [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                          [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                          [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    in-hardirq-W at:
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>  }
>  ... key      at: [<ffffffffa022e020>] __key.31551+0x0/0xffffffffffff9b1c [rt2x00lib]
> ... acquired at:
>   [<ffffffff81066a2a>] __lock_acquire+0x955/0xaa7
>   [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>   [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>   [<ffffffffa022562a>] rt2x00queue_get_entry+0x5f/0x87 [rt2x00lib]
>   [<ffffffffa0225bee>] rt2x00queue_write_tx_frame+0x21/0x124 [rt2x00lib]
>   [<ffffffffa0224ab7>] rt2x00mac_tx+0x1e3/0x230 [rt2x00lib]
>   [<ffffffffa01e322f>] __ieee80211_tx+0x58/0x186 [mac80211]
>   [<ffffffffa01e3f41>] ieee80211_master_start_xmit+0x200/0x36b [mac80211]
>   [<ffffffff81286695>] dev_hard_start_xmit+0x218/0x29b
>   [<ffffffff81299259>] __qdisc_run+0xfe/0x215
>   [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>   [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>   [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>   [<ffffffffa01d91ab>] ieee80211_sta_scan_work+0x17c/0x1ad [mac80211]
>   [<ffffffff810545b4>] run_workqueue+0x100/0x207
>   [<ffffffff810547b8>] worker_thread+0xfd/0x111
>   [<ffffffff8105816c>] kthread+0x4e/0x7b
>   [<ffffffff810118a9>] child_rip+0xa/0x11
>   [<ffffffffffffffff>] 0xffffffffffffffff
>
> -> (&intf->lock){--..} ops: 0 {
>    initial-use  at:
>                          [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                          [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                          [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                          [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                          [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                          [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                          [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                          [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                          [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                          [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                          [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                          [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                          [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                          [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                          [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                          [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                          [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    softirq-on-W at:
>                          [<ffffffff81066340>] __lock_acquire+0x26b/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                          [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                          [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                          [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                          [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                          [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                          [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                          [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                          [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                          [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                          [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                          [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                          [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                          [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                          [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                          [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                          [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    hardirq-on-W at:
>                          [<ffffffff8106631d>] __lock_acquire+0x248/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                          [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                          [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                          [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                          [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                          [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                          [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                          [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                          [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                          [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                          [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                          [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                          [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                          [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                          [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                          [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                          [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>  }
>  ... key      at: [<ffffffffa022e018>] __key.31174+0x0/0xffffffffffff9b24 [rt2x00lib]
> ... acquired at:
>   [<ffffffff81066a2a>] __lock_acquire+0x955/0xaa7
>   [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>   [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>   [<ffffffffa02257f9>] rt2x00queue_create_tx_descriptor+0x1a7/0x2a5 [rt2x00lib]
>   [<ffffffffa0225c68>] rt2x00queue_write_tx_frame+0x9b/0x124 [rt2x00lib]
>   [<ffffffffa0224ab7>] rt2x00mac_tx+0x1e3/0x230 [rt2x00lib]
>   [<ffffffffa01e322f>] __ieee80211_tx+0x58/0x186 [mac80211]
>   [<ffffffffa01e3f41>] ieee80211_master_start_xmit+0x200/0x36b [mac80211]
>   [<ffffffff81286695>] dev_hard_start_xmit+0x218/0x29b
>   [<ffffffff81299259>] __qdisc_run+0xfe/0x215
>   [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>   [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>   [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>   [<ffffffffa01d91ab>] ieee80211_sta_scan_work+0x17c/0x1ad [mac80211]
>   [<ffffffff810545b4>] run_workqueue+0x100/0x207
>   [<ffffffff810547b8>] worker_thread+0xfd/0x111
>   [<ffffffff8105816c>] kthread+0x4e/0x7b
>   [<ffffffff810118a9>] child_rip+0xa/0x11
>   [<ffffffffffffffff>] 0xffffffffffffffff
>
> -> (&sta->flaglock){.+..} ops: 0 {
>    initial-use  at:
>                          [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                          [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                          [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>                          [<ffffffffa01d5cf2>] set_sta_flags+0x24/0x3f [mac80211]
>                          [<ffffffffa01daa6c>] ieee80211_rx_mgmt_assoc_resp+0x35d/0x5fc [mac80211]
>                          [<ffffffffa01db21b>] ieee80211_sta_rx_queued_mgmt+0x510/0xe46 [mac80211]
>                          [<ffffffffa01dbbf4>] ieee80211_sta_work+0xa3/0x779 [mac80211]
>                          [<ffffffff810545b4>] run_workqueue+0x100/0x207
>                          [<ffffffff810547b8>] worker_thread+0xfd/0x111
>                          [<ffffffff8105816c>] kthread+0x4e/0x7b
>                          [<ffffffff810118a9>] child_rip+0xa/0x11
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>    in-softirq-W at:
>                          [<ffffffffffffffff>] 0xffffffffffffffff
>  }
>  ... key      at: [<ffffffffa0205740>] __key.33839+0x0/0xfffffffffffe9698 [mac80211]
> ... acquired at:
>   [<ffffffff81066a2a>] __lock_acquire+0x955/0xaa7
>   [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>   [<ffffffff8130cc13>] _spin_lock_irqsave+0x4a/0x7d
>   [<ffffffffa01e1c6e>] __ieee80211_tx_prepare+0x278/0x2f7 [mac80211]
>   [<ffffffffa01e3ede>] ieee80211_master_start_xmit+0x19d/0x36b [mac80211]
>   [<ffffffff81286695>] dev_hard_start_xmit+0x218/0x29b
>   [<ffffffff81299259>] __qdisc_run+0xfe/0x215
>   [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
>   [<ffffffffa01d809e>] ieee80211_sta_tx+0x74/0x79 [mac80211]
>   [<ffffffffa01d9020>] ieee80211_send_probe_req+0x1ee/0x1fd [mac80211]
>   [<ffffffffa01da647>] ieee80211_associated+0x120/0x1e8 [mac80211]
>   [<ffffffffa01dacf9>] ieee80211_rx_mgmt_assoc_resp+0x5ea/0x5fc [mac80211]
>   [<ffffffffa01db21b>] ieee80211_sta_rx_queued_mgmt+0x510/0xe46 [mac80211]
>   [<ffffffffa01dbbf4>] ieee80211_sta_work+0xa3/0x779 [mac80211]
>   [<ffffffff810545b4>] run_workqueue+0x100/0x207
>   [<ffffffff810547b8>] worker_thread+0xfd/0x111
>   [<ffffffff8105816c>] kthread+0x4e/0x7b
>   [<ffffffff810118a9>] child_rip+0xa/0x11
>   [<ffffffffffffffff>] 0xffffffffffffffff
>
>
>the second lock's dependencies:
>-> (&intf->lock){--..} ops: 0 {
>   initial-use  at:
>                        [<ffffffff81066356>] __lock_acquire+0x281/0xaa7
>                        [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                        [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                        [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                        [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                        [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                        [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                        [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                        [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                        [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                        [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                        [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                        [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                        [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                        [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                        [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                        [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                        [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                        [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                        [<ffffffffffffffff>] 0xffffffffffffffff
>   softirq-on-W at:
>                        [<ffffffff81066340>] __lock_acquire+0x26b/0xaa7
>                        [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                        [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                        [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                        [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                        [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                        [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                        [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                        [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                        [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                        [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                        [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                        [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                        [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                        [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                        [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                        [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                        [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                        [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                        [<ffffffffffffffff>] 0xffffffffffffffff
>   hardirq-on-W at:
>                        [<ffffffff8106631d>] __lock_acquire+0x248/0xaa7
>                        [<ffffffff81066c12>] lock_acquire+0x96/0xc3
>                        [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
>                        [<ffffffffa0224456>] rt2x00mac_bss_info_changed+0xb3/0xed [rt2x00lib]
>                        [<ffffffffa01cf142>] ieee80211_bss_info_change_notify+0x33/0x35 [mac80211]
>                        [<ffffffffa01d0c4b>] ieee80211_open+0x3bd/0x567 [mac80211]
>                        [<ffffffff812877d3>] dev_open+0x8b/0xcc
>                        [<ffffffff81287101>] dev_change_flags+0xb0/0x173
>                        [<ffffffff8128ed60>] do_setlink+0x291/0x353
>                        [<ffffffff8128ef32>] rtnl_setlink+0x110/0x112
>                        [<ffffffff8128fec6>] rtnetlink_rcv_msg+0x1c9/0x1e7
>                        [<ffffffff812a1212>] netlink_rcv_skb+0x43/0x95
>                        [<ffffffff8128fcf4>] rtnetlink_rcv+0x2e/0x37
>                        [<ffffffff812a0d96>] netlink_unicast+0x119/0x182
>                        [<ffffffff812a1062>] netlink_sendmsg+0x263/0x276
>                        [<ffffffff812790e9>] __sock_sendmsg+0x5e/0x67
>                        [<ffffffff81279a92>] sock_sendmsg+0xcc/0xe5
>                        [<ffffffff81279c82>] sys_sendmsg+0x1d7/0x241
>                        [<ffffffff8101034a>] system_call_fastpath+0x16/0x1b
>                        [<ffffffffffffffff>] 0xffffffffffffffff
> }
> ... key      at: [<ffffffffa022e018>] __key.31174+0x0/0xffffffffffff9b24 [rt2x00lib]
>
>stack backtrace:
>Pid: 0, comm: swapper Not tainted 2.6.27-0.215.rc1.git4.fc10.x86_64 #1
>
>Call Trace:
> <IRQ>  [<ffffffff81065406>] print_irq_inversion_bug+0x12e/0x13f
> [<ffffffff8106545d>] check_usage_forwards+0x46/0x4e
> [<ffffffff81065649>] mark_lock+0x198/0x3a3
> [<ffffffff81064b13>] ? trace_hardirqs_off+0xd/0xf
> [<ffffffff810662be>] __lock_acquire+0x1e9/0xaa7
> [<ffffffff81064b13>] ? trace_hardirqs_off+0xd/0xf
> [<ffffffff81016e0d>] ? native_sched_clock+0x8e/0xa8
> [<ffffffff8129921d>] ? __qdisc_run+0xc2/0x215
> [<ffffffff81066c12>] lock_acquire+0x96/0xc3
> [<ffffffff8129921d>] ? __qdisc_run+0xc2/0x215
> [<ffffffff8130cad8>] _spin_lock+0x2b/0x58
> [<ffffffff8129921d>] __qdisc_run+0xc2/0x215
> [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
> [<ffffffffa01e3d21>] ieee80211_subif_start_xmit+0x6c2/0x6e2 [mac80211]
> [<ffffffff81063900>] ? graph_unlock+0x5e/0x6a
> [<ffffffff8106583d>] ? mark_lock+0x38c/0x3a3
> [<ffffffff81066ac3>] ? __lock_acquire+0x9ee/0xaa7
> [<ffffffff8129921d>] ? __qdisc_run+0xc2/0x215
> [<ffffffff81286695>] dev_hard_start_xmit+0x218/0x29b
> [<ffffffff81299259>] __qdisc_run+0xfe/0x215
> [<ffffffff81286b77>] dev_queue_xmit+0x349/0x493
> [<ffffffff8128c393>] neigh_resolve_output+0x24a/0x29f
> [<ffffffffa02a0c74>] ip6_output_finish+0x87/0xe1 [ipv6]
> [<ffffffffa02a3127>] ip6_output2+0x25d/0x265 [ipv6]
> [<ffffffffa02a3d9c>] ip6_output+0xc6d/0xc85 [ipv6]
> [<ffffffffa02b914c>] ? dst_output+0x0/0x12 [ipv6]
> [<ffffffff812a2c42>] ? nf_hook_slow+0xef/0x100
> [<ffffffffa02b914c>] ? dst_output+0x0/0x12 [ipv6]
> [<ffffffffa02ba76c>] mld_sendpack+0x1de/0x31a [ipv6]
> [<ffffffffa02bb480>] mld_ifc_timer_expire+0x241/0x276 [ipv6]
> [<ffffffff81065a57>] ? trace_hardirqs_on_caller+0xf8/0x133
> [<ffffffffa02bb23f>] ? mld_ifc_timer_expire+0x0/0x276 [ipv6]
> [<ffffffff8104d3be>] run_timer_softirq+0x17f/0x1f7
> [<ffffffff81048ffd>] __do_softirq+0x83/0x10e
> [<ffffffff81011d8c>] call_softirq+0x1c/0x28
> [<ffffffff81013051>] do_softirq+0x52/0xb5
> [<ffffffff81048ba5>] irq_exit+0x53/0xa2
> [<ffffffff8102118c>] smp_apic_timer_interrupt+0x94/0xad
> [<ffffffff81011598>] apic_timer_interrupt+0x88/0x90
> <EOI>  [<ffffffff8102689a>] ? native_safe_halt+0x6/0x8
> [<ffffffff81065a9f>] ? trace_hardirqs_on+0xd/0xf
> [<ffffffff810175ef>] ? default_idle+0x2f/0x51
> [<ffffffff8100f2db>] ? cpu_idle+0x97/0xf0
> [<ffffffff813065b4>] ? start_secondary+0x169/0x16e
>

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Attachments on bug 457714: 313327