2.6.17-mm3 -- possible irq lock inversion dependency detected

From: Miles Lane
Date: Wed Jun 28 2006 - 15:14:37 EST

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[ INFO: possible irq lock inversion dependency detected ]
---------------------------------------------------------
swapper/0 just changed the state of lock:
(tasklist_lock){..-?}, at: [<c10201a8>] send_group_sig_info+0x16/0x34
but this lock took another, soft-irq-unsafe lock in the past:
(&sig->stats_lock){--..}

and interrupts could create inverse lock ordering between them.

other info that might help us debug this:
no locks held by swapper/0.

the first lock's dependencies:
-> (tasklist_lock){..-?} ops: 11783 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcb9e>] _write_lock_irq+0x29/0x38
[<c1014b51>] copy_process+0xedf/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1000412>] rest_init+0x14/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-R at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc43>] _read_lock+0x23/0x32
[<c10201a8>] send_group_sig_info+0x16/0x34
[<c10197e4>] it_real_fn+0x22/0x6b
[<c1029370>] hrtimer_run_queues+0xdd/0x12e
[<c101d7fc>] run_timer_softirq+0x14/0x14a
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
softirq-on-R at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc43>] _read_lock+0x23/0x32
[<c1026aaf>] keventd_create_kthread+0x35/0x57
[<c1026bac>] kthread_create+0xdb/0x126
[<c101a0d7>] cpu_callback+0x49/0x8e
[<c13643c3>] spawn_ksoftirqd+0x1c/0x32
[<c1000241>] init+0x21/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
hardirq-on-R at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc43>] _read_lock+0x23/0x32
[<c1026aaf>] keventd_create_kthread+0x35/0x57
[<c1026bac>] kthread_create+0xdb/0x126
[<c101a0d7>] cpu_callback+0x49/0x8e
[<c13643c3>] spawn_ksoftirqd+0x1c/0x32
[<c1000241>] init+0x21/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
}
... key at: [<c12e9a34>] tasklist_lock+0x34/0x80
-> (init_sighand.siglock){....} ops: 27 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1014bd0>] copy_process+0xf5e/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1000412>] rest_init+0x14/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
}
... key at: [<c125f33c>] init_sighand+0x53c/0x580
-> (&sighand->siglock){....} ops: 57856 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c101e9e7>] sigprocmask+0x25/0xd0
[<c1026c61>] kthread+0x6a/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb
}
... key at: [<c139aa84>] __key.22974+0x0/0x8
-> (&waitqueue_lock_key){++..} ops: 105911 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c11faa0a>] wait_for_completion+0x24/0xd0
[<c1026aa5>] keventd_create_kthread+0x2b/0x57
[<c1026bac>] kthread_create+0xdb/0x126
[<c101a0d7>] cpu_callback+0x49/0x8e
[<c13643c3>] spawn_ksoftirqd+0x1c/0x32
[<c1000241>] init+0x21/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011d5e>] __wake_up+0x15/0x3b
[<c1139fbb>] acpi_ec_gpe_handler+0x81/0xc6
[<c112726e>] acpi_ev_gpe_dispatch+0x58/0x122
[<c1127583>] acpi_ev_gpe_detect+0xb7/0x10e
[<c1125d77>] acpi_ev_sci_xrupt_handler+0x15/0x1d
[<c11210a9>] acpi_irq+0xe/0x18
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c1001cda>] cpu_idle+0x41/0x6a
[<c1000435>] rest_init+0x37/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011cd9>] complete+0x12/0x3e
[<c1024cce>] wakeme_after_rcu+0xb/0xd
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c13bd4b4>] waitqueue_lock_key+0x0/0x8
-> (&rq->rq_lock_key){++..} ops: 64390 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011f27>] init_idle+0x4c/0x72
[<c1363e6b>] sched_init+0xbb/0xbf
[<c135b441>] start_kernel+0x60/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1011ff0>] scheduler_tick+0xa3/0x2ac
[<c101e44a>] update_process_times+0x59/0x65
[<c1005ae3>] timer_interrupt+0x38/0x5d
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c105b6f5>] cache_alloc_debugcheck_after+0x25/0x135
[<c105ca8b>] kmem_cache_alloc+0x97/0xa3
[<c107631c>] alloc_inode+0x26/0x18c
[<c1076cff>] new_inode+0x17/0x8e
[<c1096f65>] sysfs_new_inode+0x17/0xda
[<c1097061>] sysfs_create+0x39/0xc0
[<c1098043>] create_dir+0x99/0x19c
[<c109883a>] sysfs_create_dir+0x48/0x63
[<c10f363f>] kobject_add+0xc7/0x171
[<c10f3717>] kset_add+0x2e/0x30
[<c10f3832>] kset_register+0x12/0x15
[<c115f358>] bus_register+0xa3/0x14f
[<c136dc4d>] platform_bus_init+0x17/0x19
[<c136dc89>] driver_init+0x1c/0x2d
[<c100025f>] init+0x3f/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126d9>] wake_up_process+0xf/0x11
[<c101a4ec>] __do_softirq+0x97/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c139aa4c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126bc>] default_wake_function+0xb/0xd
[<c1011948>] __wake_up_common+0x2f/0x53
[<c1011cf2>] complete+0x2b/0x3e
[<c1026c88>] kthread+0x91/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb

... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011d1e>] __wake_up_sync+0x19/0x44
[<c102011a>] do_notify_parent+0x166/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (pidmap_lock){....} ops: 4427 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c1024b17>] alloc_pid+0x1ad/0x20b
[<c10151b8>] do_fork+0x18/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1000412>] rest_init+0x14/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
}
... key at: [<c1263438>] pidmap_lock+0x38/0x60
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10248c7>] free_pid+0x11/0x69
[<c1024967>] detach_pid+0x48/0x4b
[<c10176b5>] release_task+0x146/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&parent->list_lock){++..} ops: 48418 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105c99b>] kmem_cache_zalloc+0x6e/0xc7
[<c105d05a>] kmem_cache_create+0x20c/0x51a
[<c13667d6>] kmem_cache_init+0x149/0x349
[<c135b549>] start_kernel+0x168/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105ca62>] kmem_cache_alloc+0x6e/0xa3
[<c112192b>] acpi_os_execute+0x3c/0xd0
[<c1139fdc>] acpi_ec_gpe_handler+0xa2/0xc6
[<c112726e>] acpi_ev_gpe_dispatch+0x58/0x122
[<c1127583>] acpi_ev_gpe_detect+0xb7/0x10e
[<c1125d77>] acpi_ev_sci_xrupt_handler+0x15/0x1d
[<c11210a9>] acpi_irq+0xe/0x18
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c1001cda>] cpu_idle+0x41/0x6a
[<c1000435>] rest_init+0x37/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105be59>] free_block+0x14b/0x184
[<c105baf4>] __cache_free+0x248/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c1013c6f>] free_task+0x21/0x24
[<c101512a>] __put_task_struct+0xb8/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c14ffc8c>] __key.15142+0x0/0x8
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105ca62>] kmem_cache_alloc+0x6e/0xa3
[<c101f20c>] __sigqueue_alloc+0x3b/0x6e
[<c101f274>] send_signal+0x35/0xe9
[<c101f96d>] __group_send_sig_info+0x67/0x85
[<c10200fc>] do_notify_parent+0x148/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&rq->rq_lock_key){++..} ops: 64390 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011f27>] init_idle+0x4c/0x72
[<c1363e6b>] sched_init+0xbb/0xbf
[<c135b441>] start_kernel+0x60/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1011ff0>] scheduler_tick+0xa3/0x2ac
[<c101e44a>] update_process_times+0x59/0x65
[<c1005ae3>] timer_interrupt+0x38/0x5d
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c105b6f5>] cache_alloc_debugcheck_after+0x25/0x135
[<c105ca8b>] kmem_cache_alloc+0x97/0xa3
[<c107631c>] alloc_inode+0x26/0x18c
[<c1076cff>] new_inode+0x17/0x8e
[<c1096f65>] sysfs_new_inode+0x17/0xda
[<c1097061>] sysfs_create+0x39/0xc0
[<c1098043>] create_dir+0x99/0x19c
[<c109883a>] sysfs_create_dir+0x48/0x63
[<c10f363f>] kobject_add+0xc7/0x171
[<c10f3717>] kset_add+0x2e/0x30
[<c10f3832>] kset_register+0x12/0x15
[<c115f358>] bus_register+0xa3/0x14f
[<c136dc4d>] platform_bus_init+0x17/0x19
[<c136dc89>] driver_init+0x1c/0x2d
[<c100025f>] init+0x3f/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126d9>] wake_up_process+0xf/0x11
[<c101a4ec>] __do_softirq+0x97/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c139aa4c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126c8>] wake_up_state+0xa/0xc
[<c101f13a>] signal_wake_up+0x1b/0x1d
[<c101f8e9>] __group_complete_signal+0x223/0x240
[<c101f97d>] __group_send_sig_info+0x77/0x85
[<c10200fc>] do_notify_parent+0x148/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&base->lock_key){.+..} ops: 9927 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10293d7>] hrtimer_try_to_cancel+0x16/0x4f
[<c102941d>] hrtimer_cancel+0xd/0x18
[<c1018425>] do_exit+0x1ae/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c102933e>] hrtimer_run_queues+0xab/0x12e
[<c101d7fc>] run_timer_softirq+0x14/0x14a
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c1263a58>] per_cpu__hrtimer_bases+0x118/0x120
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10295fc>] hrtimer_get_remaining+0x19/0x52
[<c1018f71>] itimer_get_remtime+0x14/0x56
[<c101905e>] do_setitimer+0xab/0x4b9
[<c1019521>] alarm_setitimer+0x35/0x56
[<c101da5b>] sys_alarm+0xb/0xd
[<c1002d6d>] sysenter_past_esp+0x56/0x8d

-> (uidhash_lock){.+..} ops: 3541 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c1262f38>] uidhash_lock+0x38/0x60
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c101ebc8>] __sigqueue_free+0x22/0x31
[<c101efc8>] __dequeue_signal+0x113/0x163
[<c10203b2>] dequeue_signal+0x34/0xac
[<c102074a>] get_signal_to_deliver+0xf9/0x3f4
[<c10023e3>] do_notify_resume+0x80/0x6a6
[<c1002ec9>] work_notifysig+0x13/0x1a

... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c106925e>] flush_old_exec+0x3db/0x7e3
[<c1086319>] load_elf_binary+0x48c/0x142b
[<c1068703>] search_binary_handler+0xe0/0x2d6
[<c1069f71>] do_execve+0x14f/0x1eb
[<c10016a8>] sys_execve+0x29/0x79
[<c1002deb>] syscall_call+0x7/0xb

... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1014bd0>] copy_process+0xf5e/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1000412>] rest_init+0x14/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199

-> (&sighand->siglock){....} ops: 57856 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c101e9e7>] sigprocmask+0x25/0xd0
[<c1026c61>] kthread+0x6a/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb
}
... key at: [<c139aa84>] __key.22974+0x0/0x8
-> (&waitqueue_lock_key){++..} ops: 105911 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c11faa0a>] wait_for_completion+0x24/0xd0
[<c1026aa5>] keventd_create_kthread+0x2b/0x57
[<c1026bac>] kthread_create+0xdb/0x126
[<c101a0d7>] cpu_callback+0x49/0x8e
[<c13643c3>] spawn_ksoftirqd+0x1c/0x32
[<c1000241>] init+0x21/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011d5e>] __wake_up+0x15/0x3b
[<c1139fbb>] acpi_ec_gpe_handler+0x81/0xc6
[<c112726e>] acpi_ev_gpe_dispatch+0x58/0x122
[<c1127583>] acpi_ev_gpe_detect+0xb7/0x10e
[<c1125d77>] acpi_ev_sci_xrupt_handler+0x15/0x1d
[<c11210a9>] acpi_irq+0xe/0x18
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c1001cda>] cpu_idle+0x41/0x6a
[<c1000435>] rest_init+0x37/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011cd9>] complete+0x12/0x3e
[<c1024cce>] wakeme_after_rcu+0xb/0xd
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c13bd4b4>] waitqueue_lock_key+0x0/0x8
-> (&rq->rq_lock_key){++..} ops: 64390 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011f27>] init_idle+0x4c/0x72
[<c1363e6b>] sched_init+0xbb/0xbf
[<c135b441>] start_kernel+0x60/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1011ff0>] scheduler_tick+0xa3/0x2ac
[<c101e44a>] update_process_times+0x59/0x65
[<c1005ae3>] timer_interrupt+0x38/0x5d
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c105b6f5>] cache_alloc_debugcheck_after+0x25/0x135
[<c105ca8b>] kmem_cache_alloc+0x97/0xa3
[<c107631c>] alloc_inode+0x26/0x18c
[<c1076cff>] new_inode+0x17/0x8e
[<c1096f65>] sysfs_new_inode+0x17/0xda
[<c1097061>] sysfs_create+0x39/0xc0
[<c1098043>] create_dir+0x99/0x19c
[<c109883a>] sysfs_create_dir+0x48/0x63
[<c10f363f>] kobject_add+0xc7/0x171
[<c10f3717>] kset_add+0x2e/0x30
[<c10f3832>] kset_register+0x12/0x15
[<c115f358>] bus_register+0xa3/0x14f
[<c136dc4d>] platform_bus_init+0x17/0x19
[<c136dc89>] driver_init+0x1c/0x2d
[<c100025f>] init+0x3f/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126d9>] wake_up_process+0xf/0x11
[<c101a4ec>] __do_softirq+0x97/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c139aa4c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126bc>] default_wake_function+0xb/0xd
[<c1011948>] __wake_up_common+0x2f/0x53
[<c1011cf2>] complete+0x2b/0x3e
[<c1026c88>] kthread+0x91/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb

... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011d1e>] __wake_up_sync+0x19/0x44
[<c102011a>] do_notify_parent+0x166/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (pidmap_lock){....} ops: 4427 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c1024b17>] alloc_pid+0x1ad/0x20b
[<c10151b8>] do_fork+0x18/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1000412>] rest_init+0x14/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
}
... key at: [<c1263438>] pidmap_lock+0x38/0x60
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10248c7>] free_pid+0x11/0x69
[<c1024967>] detach_pid+0x48/0x4b
[<c10176b5>] release_task+0x146/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&parent->list_lock){++..} ops: 48418 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105c99b>] kmem_cache_zalloc+0x6e/0xc7
[<c105d05a>] kmem_cache_create+0x20c/0x51a
[<c13667d6>] kmem_cache_init+0x149/0x349
[<c135b549>] start_kernel+0x168/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105ca62>] kmem_cache_alloc+0x6e/0xa3
[<c112192b>] acpi_os_execute+0x3c/0xd0
[<c1139fdc>] acpi_ec_gpe_handler+0xa2/0xc6
[<c112726e>] acpi_ev_gpe_dispatch+0x58/0x122
[<c1127583>] acpi_ev_gpe_detect+0xb7/0x10e
[<c1125d77>] acpi_ev_sci_xrupt_handler+0x15/0x1d
[<c11210a9>] acpi_irq+0xe/0x18
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c1001cda>] cpu_idle+0x41/0x6a
[<c1000435>] rest_init+0x37/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105be59>] free_block+0x14b/0x184
[<c105baf4>] __cache_free+0x248/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c1013c6f>] free_task+0x21/0x24
[<c101512a>] __put_task_struct+0xb8/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c14ffc8c>] __key.15142+0x0/0x8
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105ca62>] kmem_cache_alloc+0x6e/0xa3
[<c101f20c>] __sigqueue_alloc+0x3b/0x6e
[<c101f274>] send_signal+0x35/0xe9
[<c101f96d>] __group_send_sig_info+0x67/0x85
[<c10200fc>] do_notify_parent+0x148/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&rq->rq_lock_key){++..} ops: 64390 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011f27>] init_idle+0x4c/0x72
[<c1363e6b>] sched_init+0xbb/0xbf
[<c135b441>] start_kernel+0x60/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1011ff0>] scheduler_tick+0xa3/0x2ac
[<c101e44a>] update_process_times+0x59/0x65
[<c1005ae3>] timer_interrupt+0x38/0x5d
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c105b6f5>] cache_alloc_debugcheck_after+0x25/0x135
[<c105ca8b>] kmem_cache_alloc+0x97/0xa3
[<c107631c>] alloc_inode+0x26/0x18c
[<c1076cff>] new_inode+0x17/0x8e
[<c1096f65>] sysfs_new_inode+0x17/0xda
[<c1097061>] sysfs_create+0x39/0xc0
[<c1098043>] create_dir+0x99/0x19c
[<c109883a>] sysfs_create_dir+0x48/0x63
[<c10f363f>] kobject_add+0xc7/0x171
[<c10f3717>] kset_add+0x2e/0x30
[<c10f3832>] kset_register+0x12/0x15
[<c115f358>] bus_register+0xa3/0x14f
[<c136dc4d>] platform_bus_init+0x17/0x19
[<c136dc89>] driver_init+0x1c/0x2d
[<c100025f>] init+0x3f/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126d9>] wake_up_process+0xf/0x11
[<c101a4ec>] __do_softirq+0x97/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c139aa4c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126c8>] wake_up_state+0xa/0xc
[<c101f13a>] signal_wake_up+0x1b/0x1d
[<c101f8e9>] __group_complete_signal+0x223/0x240
[<c101f97d>] __group_send_sig_info+0x77/0x85
[<c10200fc>] do_notify_parent+0x148/0x182
[<c101898b>] do_exit+0x714/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&base->lock_key){.+..} ops: 9927 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10293d7>] hrtimer_try_to_cancel+0x16/0x4f
[<c102941d>] hrtimer_cancel+0xd/0x18
[<c1018425>] do_exit+0x1ae/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc7b>] _spin_lock_irq+0x29/0x38
[<c102933e>] hrtimer_run_queues+0xab/0x12e
[<c101d7fc>] run_timer_softirq+0x14/0x14a
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c1263a58>] per_cpu__hrtimer_bases+0x118/0x120
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c10295fc>] hrtimer_get_remaining+0x19/0x52
[<c1018f71>] itimer_get_remtime+0x14/0x56
[<c101905e>] do_setitimer+0xab/0x4b9
[<c1019521>] alarm_setitimer+0x35/0x56
[<c101da5b>] sys_alarm+0xb/0xd
[<c1002d6d>] sysenter_past_esp+0x56/0x8d

-> (uidhash_lock){.+..} ops: 3541 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c1262f38>] uidhash_lock+0x38/0x60
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c101ebc8>] __sigqueue_free+0x22/0x31
[<c101efc8>] __dequeue_signal+0x113/0x163
[<c10203b2>] dequeue_signal+0x34/0xac
[<c102074a>] get_signal_to_deliver+0xf9/0x3f4
[<c10023e3>] do_notify_resume+0x80/0x6a6
[<c1002ec9>] work_notifysig+0x13/0x1a

... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1014bd0>] copy_process+0xf5e/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c100136c>] kernel_thread+0x6c/0x74
[<c1023c73>] __call_usermodehelper+0x2b/0x44
[<c1024198>] run_workqueue+0x86/0xcb
[<c1024711>] worker_thread+0xe1/0x114
[<c1026ca7>] kthread+0xb0/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&sig->stats_lock){--..} ops: 2186 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1017797>] release_task+0x228/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb
softirq-on-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1014e7a>] copy_process+0x1208/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c10012c5>] sys_clone+0x25/0x2a
[<c1002d6d>] sysenter_past_esp+0x56/0x8d
hardirq-on-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1014e7a>] copy_process+0x1208/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c10012c5>] sys_clone+0x25/0x2a
[<c1002d6d>] sysenter_past_esp+0x56/0x8d
}
... key at: [<c139aaa4>] __key.22061+0x0/0x8
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1017797>] release_task+0x228/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (&rq->rq_lock_key){++..} ops: 64390 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fccee>] _spin_lock_irqsave+0x2c/0x3c
[<c1011f27>] init_idle+0x4c/0x72
[<c1363e6b>] sched_init+0xbb/0xbf
[<c135b441>] start_kernel+0x60/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1011ff0>] scheduler_tick+0xa3/0x2ac
[<c101e44a>] update_process_times+0x59/0x65
[<c1005ae3>] timer_interrupt+0x38/0x5d
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c105b6f5>] cache_alloc_debugcheck_after+0x25/0x135
[<c105ca8b>] kmem_cache_alloc+0x97/0xa3
[<c107631c>] alloc_inode+0x26/0x18c
[<c1076cff>] new_inode+0x17/0x8e
[<c1096f65>] sysfs_new_inode+0x17/0xda
[<c1097061>] sysfs_create+0x39/0xc0
[<c1098043>] create_dir+0x99/0x19c
[<c109883a>] sysfs_create_dir+0x48/0x63
[<c10f363f>] kobject_add+0xc7/0x171
[<c10f3717>] kset_add+0x2e/0x30
[<c10f3832>] kset_register+0x12/0x15
[<c115f358>] bus_register+0xa3/0x14f
[<c136dc4d>] platform_bus_init+0x17/0x19
[<c136dc89>] driver_init+0x1c/0x2d
[<c100025f>] init+0x3f/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10125c7>] try_to_wake_up+0x18/0x102
[<c10126d9>] wake_up_process+0xf/0x11
[<c101a4ec>] __do_softirq+0x97/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c139aa4c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10124b4>] task_rq_lock+0x17/0x1e
[<c10132c9>] sched_exit+0x19/0x6b
[<c10177ea>] release_task+0x27b/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb

-> (uidhash_lock){.+..} ops: 3541 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c1015106>] __put_task_struct+0x94/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c1262f38>] uidhash_lock+0x38/0x60
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c10f2c58>] _atomic_dec_and_lock+0x10/0x30
[<c101e6c7>] free_uid+0x23/0xa2
[<c101ebc8>] __sigqueue_free+0x22/0x31
[<c101f044>] flush_sigqueue+0x2c/0x33
[<c1017790>] release_task+0x221/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c100100b>] thread_saved_pc+0x0/0xe

-> (&parent->list_lock/1){++..} ops: 17207 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fca92>] _spin_lock_nested+0x26/0x37
[<c105ba9e>] __cache_free+0x1f2/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c1121339>] acpi_os_release_object+0x8/0xc
[<c1131bb6>] acpi_ps_free_op+0x1c/0x1e
[<c11319a7>] acpi_ps_delete_parse_tree+0x33/0x4c
[<c1131020>] acpi_ps_complete_this_op+0x12f/0x147
[<c11315ff>] acpi_ps_parse_loop+0x5c7/0x898
[<c1130c51>] acpi_ps_parse_aml+0x57/0x1e6
[<c1130644>] acpi_ns_one_complete_parse+0x78/0x8d
[<c113066b>] acpi_ns_parse_table+0x12/0x23
[<c112e8a9>] acpi_ns_load_table+0x79/0x9e
[<c112e91c>] acpi_ns_load_table_by_type+0x4e/0xab
[<c112e9af>] acpi_ns_load_namespace+0x36/0x57
[<c1133eb8>] acpi_load_tables+0x75/0xb1
[<c136b314>] acpi_early_init+0x61/0x10a
[<c135b6ad>] start_kernel+0x2cc/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fca92>] _spin_lock_nested+0x26/0x37
[<c105ba9e>] __cache_free+0x1f2/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c1044aa0>] mempool_free_slab+0xe/0x10
[<c1044aff>] mempool_free+0x5d/0x65
[<c1064172>] bio_free+0x31/0x35
[<c1064184>] bio_fs_destructor+0xe/0x10
[<c1063ea0>] bio_put+0x2a/0x2c
[<c106290f>] end_bio_bh_io_sync+0x36/0x3b
[<c10641ce>] bio_endio+0x48/0x50
[<c10e7fee>] __end_that_request_first+0x1e6/0x474
[<c10e8291>] end_that_request_first+0xb/0xd
[<c116a44b>] ide_end_request+0x8a/0xd8
[<c1171453>] ide_dma_intr+0x58/0x93
[<c116ae88>] ide_intr+0x149/0x1a9
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c119c1f6>] skb_release_data+0x7c/0x80
[<c119c2dc>] pskb_expand_head+0xe2/0x126
[<c11b2173>] netlink_broadcast+0x73/0x288
[<c10f3d93>] kobject_uevent+0x345/0x3b6
[<c11605be>] class_device_add+0x2c6/0x3dd
[<c118de65>] input_register_device+0xdf/0x211
[<c1190008>] atkbd_connect+0x1c7/0x1ef
[<c1189824>] serio_connect_driver+0x1e/0x2e
[<c118984a>] serio_driver_probe+0x16/0x18
[<c115f74c>] driver_probe_device+0x45/0x92
[<c115f866>] __driver_attach+0x5c/0x85
[<c115f1d6>] bus_for_each_dev+0x36/0x5b
[<c115f6a4>] driver_attach+0x14/0x17
[<c115eeb6>] bus_add_driver+0x6b/0x109
[<c115fb1c>] driver_register+0x9d/0xa2
[<c118a35e>] serio_thread+0x128/0x24e
[<c1026ca7>] kthread+0xb0/0xdc
[<c1001005>] kernel_thread_helper+0x5/0xb
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fca92>] _spin_lock_nested+0x26/0x37
[<c105ba9e>] __cache_free+0x1f2/0x2b2
[<c105c130>] kfree+0x60/0x7d
[<c10d22be>] selinux_task_free_security+0x1a/0x1c
[<c10150fb>] __put_task_struct+0x89/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c14ffc8d>] __key.15142+0x1/0x8
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fca92>] _spin_lock_nested+0x26/0x37
[<c105ba9e>] __cache_free+0x1f2/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c10135b8>] __cleanup_sighand+0x18/0x1a
[<c1017771>] release_task+0x202/0x2b2
[<c1017eab>] do_wait+0x68a/0x9c7
[<c101820e>] sys_wait4+0x26/0x2a
[<c1018225>] sys_waitpid+0x13/0x15
[<c1002d6d>] sysenter_past_esp+0x56/0x8d

-> (&parent->list_lock){++..} ops: 48418 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105c99b>] kmem_cache_zalloc+0x6e/0xc7
[<c105d05a>] kmem_cache_create+0x20c/0x51a
[<c13667d6>] kmem_cache_init+0x149/0x349
[<c135b549>] start_kernel+0x168/0x2d3
[<c1000199>] 0xc1000199
in-hardirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105c1e1>] cache_alloc_refill+0x61/0x5f8
[<c105ca62>] kmem_cache_alloc+0x6e/0xa3
[<c112192b>] acpi_os_execute+0x3c/0xd0
[<c1139fdc>] acpi_ec_gpe_handler+0xa2/0xc6
[<c112726e>] acpi_ev_gpe_dispatch+0x58/0x122
[<c1127583>] acpi_ev_gpe_detect+0xb7/0x10e
[<c1125d77>] acpi_ev_sci_xrupt_handler+0x15/0x1d
[<c11210a9>] acpi_irq+0xe/0x18
[<c103eb6b>] handle_IRQ_event+0x20/0x50
[<c103ec10>] __do_IRQ+0x75/0xc9
[<c1004b64>] do_IRQ+0x9b/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
[<c1001cda>] cpu_idle+0x41/0x6a
[<c1000435>] rest_init+0x37/0x3a
[<c135b6b2>] start_kernel+0x2d1/0x2d3
[<c1000199>] 0xc1000199
in-softirq-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105be59>] free_block+0x14b/0x184
[<c105baf4>] __cache_free+0x248/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c1013c6f>] free_task+0x21/0x24
[<c101512a>] __put_task_struct+0xb8/0xbd
[<c1016f5e>] delayed_put_task_struct+0x1d/0x1f
[<c1024f1f>] __rcu_process_callbacks+0xfe/0x154
[<c1024f87>] rcu_process_callbacks+0x12/0x23
[<c101a2d3>] tasklet_action+0x45/0x76
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
}
... key at: [<c14ffc8c>] __key.15142+0x0/0x8
... acquired at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c105be59>] free_block+0x14b/0x184
[<c105baf4>] __cache_free+0x248/0x2b2
[<c105bbb2>] kmem_cache_free+0x54/0x6e
[<c10135b8>] __cleanup_sighand+0x18/0x1a
[<c1017771>] release_task+0x202/0x2b2
[<c1017eab>] do_wait+0x68a/0x9c7
[<c101820e>] sys_wait4+0x26/0x2a
[<c1018225>] sys_waitpid+0x13/0x15
[<c1002d6d>] sysenter_past_esp+0x56/0x8d

the second lock's dependencies:
-> (&sig->stats_lock){--..} ops: 2186 {
initial-use at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1017797>] release_task+0x228/0x2b2
[<c1018a03>] do_exit+0x78c/0x80b
[<c1023ebe>] ____call_usermodehelper+0xee/0xf0
[<c1001005>] kernel_thread_helper+0x5/0xb
softirq-on-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1014e7a>] copy_process+0x1208/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c10012c5>] sys_clone+0x25/0x2a
[<c1002d6d>] sysenter_past_esp+0x56/0x8d
hardirq-on-W at:
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcac6>] _spin_lock+0x23/0x32
[<c1013ac5>] __cleanup_signal+0x1a/0x5b
[<c1014e7a>] copy_process+0x1208/0x138a
[<c1015233>] do_fork+0x93/0x19a
[<c10012c5>] sys_clone+0x25/0x2a
[<c1002d6d>] sysenter_past_esp+0x56/0x8d
}
... key at: [<c139aaa4>] __key.22061+0x0/0x8

stack backtrace:
[<c1003502>] show_trace_log_lvl+0x54/0xfd
[<c1003b6a>] show_trace+0xd/0x10
[<c1003c0e>] dump_stack+0x19/0x1b
[<c102b15d>] print_irq_inversion_bug+0xe3/0xf0
[<c102b5ac>] check_usage_forwards+0x32/0x3b
[<c102b764>] mark_lock+0x1af/0x360
[<c102c34c>] __lock_acquire+0x3a5/0x95e
[<c102cbca>] lock_acquire+0x60/0x80
[<c11fcc43>] _read_lock+0x23/0x32
[<c10201a8>] send_group_sig_info+0x16/0x34
[<c10197e4>] it_real_fn+0x22/0x6b
[<c1029370>] hrtimer_run_queues+0xdd/0x12e
[<c101d7fc>] run_timer_softirq+0x14/0x14a
[<c101a4aa>] __do_softirq+0x55/0xb0
[<c1004a64>] do_softirq+0x58/0xbd
[<c101a544>] irq_exit+0x3f/0x4b
[<c1004b69>] do_IRQ+0xa0/0xaf
[<c1002fd9>] common_interrupt+0x25/0x2c
pccard: card ejected from slot 0
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