* Re: INFO: possible irq lock inversion dependency detected
@ 2006-07-08 23:00 Arne Ahrend
0 siblings, 0 replies; 4+ messages in thread
From: Arne Ahrend @ 2006-07-08 23:00 UTC (permalink / raw)
To: Arjan van de Ven; +Cc: linux-kernel
On Sat, 2006-07-08 at 19:12 +0200, Arjan van de Ven wrote:
> Arne: Can you try this patch and verify it makes the message go away?
> [...]
> --- linux-2.6.17-mm6.orig/include/linux/skbuff.h
> +++ linux-2.6.17-mm6/include/linux/skbuff.h
> @@ -609,7 +609,6 @@ extern struct lock_class_key skb_queue_l
> static inline void skb_queue_head_init(struct sk_buff_head *list)
> {
> spin_lock_init(&list->lock);
> - lockdep_set_class(&list->lock, &skb_queue_lock_key);
> list->prev = list->next = (struct sk_buff *)list;
> list->qlen = 0;
> }
Yes, this patch removes the message. (And the system continues to work.)
Arne
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^ permalink raw reply [flat|nested] 4+ messages in thread* INFO: possible irq lock inversion dependency detected
@ 2014-09-05 16:20 Kari Suvanto
0 siblings, 0 replies; 4+ messages in thread
From: Kari Suvanto @ 2014-09-05 16:20 UTC (permalink / raw)
To: linux-kernel@vger.kernel.org
Hello,
I noticed, with next/master tree, this lockdep splat and at least I could not find any discussion about this by googling:
[ 33.105722] =========================================================
[ 33.105722] [ INFO: possible irq lock inversion dependency detected ]
[ 33.105724] 3.17.0-031700rc3-generic #201409031132 Not tainted
[ 33.105724] ---------------------------------------------------------
[ 33.105725] swapper/0/0 just changed the state of lock:
[ 33.105726] (&(&dev->event_lock)->rlock#2){-.....}, at: [<ffffffff8162f7c5>] input_event+0x45/0x70
[ 33.105733] but this lock took another, HARDIRQ-unsafe lock in the past:
[ 33.105734] (&(&p->alloc_lock)->rlock){+.+...}
[ 33.105734]
[ 33.105734] and interrupts could create inverse lock ordering between them.
[ 33.105734]
[ 33.105736]
[ 33.105736] other info that might help us debug this:
[ 33.105737] Chain exists of:
[ 33.105737] &(&dev->event_lock)->rlock#2 --> &(&client->buffer_lock)->rlock --> &(&p->alloc_lock)->rlock
[ 33.105737]
[ 33.105740] Possible interrupt unsafe locking scenario:
[ 33.105740]
[ 33.105740] CPU0 CPU1
[ 33.105741] ---- ----
[ 33.105742] lock(&(&p->alloc_lock)->rlock);
[ 33.105743] local_irq_disable();
[ 33.105743] lock(&(&dev->event_lock)->rlock#2);
[ 33.105745] lock(&(&client->buffer_lock)->rlock);
[ 33.105746] <Interrupt>
[ 33.105747] lock(&(&dev->event_lock)->rlock#2);
[ 33.105748]
[ 33.105748] *** DEADLOCK ***
[ 33.105748]
[ 33.105749] no locks held by swapper/0/0.
[ 33.105750]
[ 33.105750] the shortest dependencies between 2nd lock and 1st lock:
[ 33.105755] -> (&(&p->alloc_lock)->rlock){+.+...} ops: 30838 {
[ 33.105757] HARDIRQ-ON-W at:
[ 33.105758] [<ffffffff810d3ae8>] __lock_acquire+0x538/0xb50
[ 33.105761] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105763] [<ffffffff818334e9>] _raw_spin_lock+0x39/0x50
[ 33.105766] [<ffffffff81227f0a>] __set_task_comm+0x2a/0x150
[ 33.105769] [<ffffffff810a15c0>] kthreadd+0x30/0x220
[ 33.105772] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.105774] SOFTIRQ-ON-W at:
[ 33.105775] [<ffffffff810d38a3>] __lock_acquire+0x2f3/0xb50
[ 33.105776] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105778] [<ffffffff818334e9>] _raw_spin_lock+0x39/0x50
[ 33.105780] [<ffffffff81227f0a>] __set_task_comm+0x2a/0x150
[ 33.105782] [<ffffffff810a15c0>] kthreadd+0x30/0x220
[ 33.105783] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.105785] INITIAL USE at:
[ 33.105786] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.105787] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105789] [<ffffffff818334e9>] _raw_spin_lock+0x39/0x50
[ 33.105791] [<ffffffff81227f0a>] __set_task_comm+0x2a/0x150
[ 33.105792] [<ffffffff810a15c0>] kthreadd+0x30/0x220
[ 33.105794] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.105796] }
[ 33.105796] ... key at: [<ffffffff82119008>] __key.51772+0x0/0x8
[ 33.105799] ... acquired at:
[ 33.105799] [<ffffffff810d39c8>] __lock_acquire+0x418/0xb50
[ 33.105801] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105802] [<ffffffff818334e9>] _raw_spin_lock+0x39/0x50
[ 33.105804] [<ffffffff81093eeb>] do_prlimit+0x9b/0x200
[ 33.105806] [<ffffffff8109407a>] SyS_getrlimit+0x2a/0x70
[ 33.105808] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105810]
[ 33.105811] -> (tasklist_lock){.+.+..} ops: 26419 {
[ 33.105813] HARDIRQ-ON-R at:
[ 33.105813] [<ffffffff810d3881>] __lock_acquire+0x2d1/0xb50
[ 33.105815] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105817] [<ffffffff8183382c>] _raw_read_lock+0x3c/0x50
[ 33.105818] [<ffffffff8107d796>] do_wait+0xb6/0x340
[ 33.105820] [<ffffffff8107ed54>] SyS_wait4+0x64/0xe0
[ 33.105822] [<ffffffff8109500b>] wait_for_helper+0x4b/0x70
[ 33.105824] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.105825] SOFTIRQ-ON-R at:
[ 33.105826] [<ffffffff810d38a3>] __lock_acquire+0x2f3/0xb50
[ 33.105828] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105829] [<ffffffff8183382c>] _raw_read_lock+0x3c/0x50
[ 33.105831] [<ffffffff8107d796>] do_wait+0xb6/0x340
[ 33.105833] [<ffffffff8107ed54>] SyS_wait4+0x64/0xe0
[ 33.105834] [<ffffffff8109500b>] wait_for_helper+0x4b/0x70
[ 33.105836] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.105837] INITIAL USE at:
[ 33.105838] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.105840] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105842] [<ffffffff81833ba5>] _raw_write_lock_irq+0x45/0x60
[ 33.105843] [<ffffffff81078861>] copy_process.part.23+0xcf1/0x1e50
[ 33.105846] [<ffffffff81079b6e>] do_fork+0xce/0x750
[ 33.105847] [<ffffffff8107a216>] kernel_thread+0x26/0x30
[ 33.105849] [<ffffffff81817bb3>] rest_init+0x23/0x140
[ 33.105851] [<ffffffff81f590ee>] start_kernel+0x499/0x4a4
[ 33.105853] [<ffffffff81f585ee>] x86_64_start_reservations+0x2a/0x2c
[ 33.105855] [<ffffffff81f58733>] x86_64_start_kernel+0x143/0x152
[ 33.105857] }
[ 33.105858] ... key at: [<ffffffff81e0f058>] tasklist_lock+0x18/0x40
[ 33.105860] ... acquired at:
[ 33.105861] [<ffffffff810d39c8>] __lock_acquire+0x418/0xb50
[ 33.105863] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105864] [<ffffffff8183382c>] _raw_read_lock+0x3c/0x50
[ 33.105866] [<ffffffff812342d5>] send_sigio+0x55/0x1d0
[ 33.105868] [<ffffffff8123451c>] kill_fasync+0xcc/0x2a0
[ 33.105870] [<ffffffff81633063>] evdev_pass_values+0xf3/0x1c0
[ 33.105871] [<ffffffff81634bd3>] evdev_events+0x1d3/0x2f0
[ 33.105873] [<ffffffff8162ba77>] input_to_handler+0x97/0xf0
[ 33.105875] [<ffffffff8162e9ac>] input_pass_values.part.6+0x2cc/0x370
[ 33.105876] [<ffffffff8162f361>] input_handle_event+0x121/0x540
[ 33.105878] [<ffffffff8162f988>] input_inject_event+0x198/0x230
[ 33.105880] [<ffffffff8163497c>] evdev_write+0x19c/0x220
[ 33.105881] [<ffffffff812208f7>] vfs_write+0xb7/0x1f0
[ 33.105883] [<ffffffff81221359>] SyS_write+0x49/0xb0
[ 33.105884] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105886]
[ 33.105887] -> (&f->f_owner.lock){......} ops: 8 {
[ 33.105889] INITIAL USE at:
[ 33.105890] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.105891] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105893] [<ffffffff81833ba5>] _raw_write_lock_irq+0x45/0x60
[ 33.105895] [<ffffffff81233687>] __f_setown+0x47/0xe0
[ 33.105896] [<ffffffff812337bd>] f_setown+0x7d/0x120
[ 33.105897] [<ffffffff81233f01>] SyS_fcntl+0x341/0x6c0
[ 33.105899] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105901] }
[ 33.105901] ... key at: [<ffffffff82e83920>] __key.31233+0x0/0x8
[ 33.105905] ... acquired at:
[ 33.105905] [<ffffffff810d39c8>] __lock_acquire+0x418/0xb50
[ 33.105907] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105908] [<ffffffff8183382c>] _raw_read_lock+0x3c/0x50
[ 33.105910] [<ffffffff812342aa>] send_sigio+0x2a/0x1d0
[ 33.105911] [<ffffffff8123451c>] kill_fasync+0xcc/0x2a0
[ 33.105913] [<ffffffff81633063>] evdev_pass_values+0xf3/0x1c0
[ 33.105914] [<ffffffff81634bd3>] evdev_events+0x1d3/0x2f0
[ 33.105916] [<ffffffff8162ba77>] input_to_handler+0x97/0xf0
[ 33.105918] [<ffffffff8162e9ac>] input_pass_values.part.6+0x2cc/0x370
[ 33.105919] [<ffffffff8162f361>] input_handle_event+0x121/0x540
[ 33.105921] [<ffffffff8162f988>] input_inject_event+0x198/0x230
[ 33.105922] [<ffffffff8163497c>] evdev_write+0x19c/0x220
[ 33.105924] [<ffffffff812208f7>] vfs_write+0xb7/0x1f0
[ 33.105925] [<ffffffff81221359>] SyS_write+0x49/0xb0
[ 33.105926] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105928]
[ 33.105928] -> (&(&new->fa_lock)->rlock){......} ops: 1 {
[ 33.105930] INITIAL USE at:
[ 33.105931] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.105933] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105934] [<ffffffff81833e01>] _raw_spin_lock_irqsave+0x51/0x70
[ 33.105936] [<ffffffff812344ee>] kill_fasync+0x9e/0x2a0
[ 33.105938] [<ffffffff81633063>] evdev_pass_values+0xf3/0x1c0
[ 33.105939] [<ffffffff81634bd3>] evdev_events+0x1d3/0x2f0
[ 33.105941] [<ffffffff8162ba77>] input_to_handler+0x97/0xf0
[ 33.105942] [<ffffffff8162e9ac>] input_pass_values.part.6+0x2cc/0x370
[ 33.105944] [<ffffffff8162f361>] input_handle_event+0x121/0x540
[ 33.105946] [<ffffffff8162f988>] input_inject_event+0x198/0x230
[ 33.105947] [<ffffffff8163497c>] evdev_write+0x19c/0x220
[ 33.105949] [<ffffffff812208f7>] vfs_write+0xb7/0x1f0
[ 33.105950] [<ffffffff81221359>] SyS_write+0x49/0xb0
[ 33.105951] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105953] }
[ 33.105953] ... key at: [<ffffffff82e84274>] __key.36822+0x0/0x8
[ 33.105955] ... acquired at:
[ 33.105956] [<ffffffff810d39c8>] __lock_acquire+0x418/0xb50
[ 33.105957] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105959] [<ffffffff8182ef4b>] mutex_lock_nested+0x6b/0x4e0
[ 33.105960] [<ffffffff812a3f6e>] kernfs_fop_open+0x16e/0x360
[ 33.105963] [<ffffffff8121dcff>] do_dentry_open+0x1ff/0x350
[ 33.105965] [<ffffffff8121e030>] finish_open+0x40/0x50
[ 33.105967] [<ffffffff8123108a>] do_last+0xc0a/0x13c0
[ 33.105968] [<ffffffff812318fb>] path_openat+0xbb/0x680
[ 33.105970] [<ffffffff812326ea>] do_filp_open+0x3a/0x90
[ 33.105971] [<ffffffff8121f8d8>] do_sys_open+0x128/0x220
[ 33.105973] [<ffffffff8121f9ee>] SyS_open+0x1e/0x20
[ 33.105974] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.105976]
[ 33.105977] -> (&(&client->buffer_lock)->rlock){......} ops: 15 {
[ 33.105979] INITIAL USE at:
[ 33.105980] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.105981] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.105983] [<ffffffff818334e9>] _raw_spin_lock+0x39/0x50
[ 33.105984] [<ffffffff81632fd3>] evdev_pass_values+0x63/0x1c0
[ 33.105986] [<ffffffff81634bd3>] evdev_events+0x1d3/0x2f0
[ 33.105988] [<ffffffff8162ba77>] input_to_handler+0x97/0xf0
[ 33.105989] [<ffffffff8162e9ac>] input_pass_values.part.6+0x2cc/0x370
[ 33.105991] [<ffffffff8162f361>] input_handle_event+0x121/0x540
[ 33.105992] [<ffffffff8162f7d9>] input_event+0x59/0x70
[ 33.105994] [<ffffffffc0234ef0>] snd_jack_report+0xd0/0xe0 [snd]
[ 33.106000] [<ffffffffc0393058>] snd_hda_jack_report_sync+0xd8/0xe0 [snd_hda_codec]
[ 33.106006] [<ffffffffc042ff32>] jack_callback+0x82/0x90 [snd_hda_codec_hdmi]
[ 33.106008] [<ffffffffc042ffeb>] hdmi_unsol_event+0xab/0x140 [snd_hda_codec_hdmi]
[ 33.106010] [<ffffffffc0389187>] process_unsol_events+0x67/0x80 [snd_hda_codec]
[ 33.106013] [<ffffffff8109a5f3>] process_one_work+0x1e3/0x650
[ 33.106014] [<ffffffff8109ab81>] worker_thread+0x121/0x490
[ 33.106015] [<ffffffff810a0adc>] kthread+0xfc/0x120
[ 33.106017] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.106019] }
[ 33.106020] ... key at: [<ffffffff82eae118>] __key.29718+0x0/0x8
[ 33.106022] ... acquired at:
[ 33.106023] [<ffffffff810d39c8>] __lock_acquire+0x418/0xb50
[ 33.106025] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.106026] [<ffffffff8182ef4b>] mutex_lock_nested+0x6b/0x4e0
[ 33.106028] [<ffffffff812a3f6e>] kernfs_fop_open+0x16e/0x360
[ 33.106029] [<ffffffff8121dcff>] do_dentry_open+0x1ff/0x350
[ 33.106031] [<ffffffff8121e030>] finish_open+0x40/0x50
[ 33.106033] [<ffffffff8123108a>] do_last+0xc0a/0x13c0
[ 33.106034] [<ffffffff812318fb>] path_openat+0xbb/0x680
[ 33.106035] [<ffffffff812326ea>] do_filp_open+0x3a/0x90
[ 33.106036] [<ffffffff8121f8d8>] do_sys_open+0x128/0x220
[ 33.106038] [<ffffffff8121f9ee>] SyS_open+0x1e/0x20
[ 33.106040] [<ffffffff8183436d>] system_call_fastpath+0x1a/0x1f
[ 33.106041]
[ 33.106042] -> (&(&dev->event_lock)->rlock#2){-.....} ops: 176 {
[ 33.106044] IN-HARDIRQ-W at:
[ 33.106045] [<ffffffff810d3c1d>] __lock_acquire+0x66d/0xb50
[ 33.106047] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.106048] [<ffffffff81833e01>] _raw_spin_lock_irqsave+0x51/0x70
[ 33.106050] [<ffffffff8162f7c5>] input_event+0x45/0x70
[ 33.106052] [<ffffffffc03cc07f>] hidinput_report_event+0x3f/0x50 [hid]
[ 33.106054] [<ffffffffc03ca1d8>] hid_report_raw_event+0x148/0x1c0 [hid]
[ 33.106057] [<ffffffffc03ca362>] hid_input_report+0x112/0x190 [hid]
[ 33.106059] [<ffffffffc03eac3c>] hid_irq_in+0x8c/0x210 [usbhid]
[ 33.106061] [<ffffffff815e0a73>] __usb_hcd_giveback_urb+0x83/0x130
[ 33.106063] [<ffffffff815e0c2f>] usb_hcd_giveback_urb+0x3f/0x140
[ 33.106065] [<ffffffff816207cf>] handle_tx_event+0x22f/0x12b0
[ 33.106068] [<ffffffff81621b06>] xhci_irq+0x2b6/0xa60
[ 33.106069] [<ffffffff816222c1>] xhci_msi_irq+0x11/0x20
[ 33.106071] [<ffffffff810e7e8e>] handle_irq_event_percpu+0x3e/0x340
[ 33.106073] [<ffffffff810e81cd>] handle_irq_event+0x3d/0x60
[ 33.106075] [<ffffffff810eafef>] handle_edge_irq+0x7f/0x120
[ 33.106076] [<ffffffff8101c85e>] handle_irq+0x1e/0x30
[ 33.106079] [<ffffffff8183738f>] do_IRQ+0x4f/0xf0
[ 33.106081] [<ffffffff81835072>] ret_from_intr+0x0/0x1a
[ 33.106082] [<ffffffff8167c147>] cpuidle_enter+0x17/0x20
[ 33.106084] [<ffffffff810c7bb1>] cpu_idle_loop+0x401/0x4e0
[ 33.106086] [<ffffffff810c7ceb>] cpu_startup_entry+0x5b/0x60
[ 33.106087] [<ffffffff81817cca>] rest_init+0x13a/0x140
[ 33.106088] [<ffffffff81f590ee>] start_kernel+0x499/0x4a4
[ 33.106090] [<ffffffff81f585ee>] x86_64_start_reservations+0x2a/0x2c
[ 33.106092] [<ffffffff81f58733>] x86_64_start_kernel+0x143/0x152
[ 33.106094] INITIAL USE at:
[ 33.106094] [<ffffffff810d38f4>] __lock_acquire+0x344/0xb50
[ 33.106096] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.106098] [<ffffffff81833e01>] _raw_spin_lock_irqsave+0x51/0x70
[ 33.106099] [<ffffffff8162f7c5>] input_event+0x45/0x70
[ 33.106101] [<ffffffffc0234edb>] snd_jack_report+0xbb/0xe0 [snd]
[ 33.106105] [<ffffffffc03932f1>] __snd_hda_jack_add_kctl+0x151/0x160 [snd_hda_codec]
[ 33.106109] [<ffffffffc0393314>] snd_hda_jack_add_kctl+0x14/0x20 [snd_hda_codec]
[ 33.106112] [<ffffffffc042e6e4>] generic_hdmi_build_jack+0xd4/0x150 [snd_hda_codec_hdmi]
[ 33.106114] [<ffffffffc04300c6>] generic_hdmi_build_controls+0x46/0x210 [snd_hda_codec_hdmi]
[ 33.106116] [<ffffffffc03923d5>] snd_hda_codec_build_controls+0x1c5/0x220 [snd_hda_codec]
[ 33.106120] [<ffffffffc0392473>] snd_hda_build_controls+0x43/0xa0 [snd_hda_codec]
[ 33.106123] [<ffffffffc03bf365>] azx_mixer_create+0x15/0x20 [snd_hda_controller]
[ 33.106125] [<ffffffffc03ae751>] azx_probe_continue+0x361/0x710 [snd_hda_intel]
[ 33.106127] [<ffffffffc03aeb95>] azx_probe_work+0x15/0x20 [snd_hda_intel]
[ 33.106129] [<ffffffff8109a5f3>] process_one_work+0x1e3/0x650
[ 33.106130] [<ffffffff8109ab81>] worker_thread+0x121/0x490
[ 33.106132] [<ffffffff810a0adc>] kthread+0xfc/0x120
[ 33.106134] [<ffffffff818342bc>] ret_from_fork+0x7c/0xb0
[ 33.106135] }
[ 33.106136] ... key at: [<ffffffff82eae054>] __key.28093+0x0/0x8
[ 33.106138] ... acquired at:
[ 33.106138] [<ffffffff810d150a>] check_usage_forwards+0x17a/0x180
[ 33.106140] [<ffffffff810d2e71>] mark_lock+0x1a1/0x2a0
[ 33.106141] [<ffffffff810d3c1d>] __lock_acquire+0x66d/0xb50
[ 33.106143] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.106145] [<ffffffff81833e01>] _raw_spin_lock_irqsave+0x51/0x70
[ 33.106146] [<ffffffff8162f7c5>] input_event+0x45/0x70
[ 33.106148] [<ffffffffc03cc07f>] hidinput_report_event+0x3f/0x50 [hid]
[ 33.106151] [<ffffffffc03ca1d8>] hid_report_raw_event+0x148/0x1c0 [hid]
[ 33.106153] [<ffffffffc03ca362>] hid_input_report+0x112/0x190 [hid]
[ 33.106155] [<ffffffffc03eac3c>] hid_irq_in+0x8c/0x210 [usbhid]
[ 33.106157] [<ffffffff815e0a73>] __usb_hcd_giveback_urb+0x83/0x130
[ 33.106159] [<ffffffff815e0c2f>] usb_hcd_giveback_urb+0x3f/0x140
[ 33.106160] [<ffffffff816207cf>] handle_tx_event+0x22f/0x12b0
[ 33.106162] [<ffffffff81621b06>] xhci_irq+0x2b6/0xa60
[ 33.106164] [<ffffffff816222c1>] xhci_msi_irq+0x11/0x20
[ 33.106165] [<ffffffff810e7e8e>] handle_irq_event_percpu+0x3e/0x340
[ 33.106167] [<ffffffff810e81cd>] handle_irq_event+0x3d/0x60
[ 33.106169] [<ffffffff810eafef>] handle_edge_irq+0x7f/0x120
[ 33.106170] [<ffffffff8101c85e>] handle_irq+0x1e/0x30
[ 33.106172] [<ffffffff8183738f>] do_IRQ+0x4f/0xf0
[ 33.106174] [<ffffffff81835072>] ret_from_intr+0x0/0x1a
[ 33.106175] [<ffffffff8167c147>] cpuidle_enter+0x17/0x20
[ 33.106177] [<ffffffff810c7bb1>] cpu_idle_loop+0x401/0x4e0
[ 33.106178] [<ffffffff810c7ceb>] cpu_startup_entry+0x5b/0x60
[ 33.106179] [<ffffffff81817cca>] rest_init+0x13a/0x140
[ 33.106181] [<ffffffff81f590ee>] start_kernel+0x499/0x4a4
[ 33.106182] [<ffffffff81f585ee>] x86_64_start_reservations+0x2a/0x2c
[ 33.106184] [<ffffffff81f58733>] x86_64_start_kernel+0x143/0x152
[ 33.106185]
[ 33.106186]
[ 33.106186] stack backtrace:
[ 33.106188] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.17.0-031700rc3-generic #201409031132
[ 33.106189] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.5 07/22/2014
[ 33.106190] ffffffff81e1d4c0 ffff88041ba03a60 ffffffff81829c6a ffffffff82bd7620
[ 33.106192] ffff88041ba03aa0 ffffffff81822ff3 ffffffff81cbcf5e 0000000000000000
[ 33.106193] ffffffff81e1dd58 ffffffff81e1d4c0 ffffffff81cbcf5e ffffffff82bd7620
[ 33.106195] Call Trace:
[ 33.106196] <IRQ> [<ffffffff81829c6a>] dump_stack+0x4d/0x66
[ 33.106200] [<ffffffff81822ff3>] print_irq_inversion_bug.part.38+0x1ac/0x1b8
[ 33.106203] [<ffffffff810d150a>] check_usage_forwards+0x17a/0x180
[ 33.106205] [<ffffffff8102b0bb>] ? save_stack_trace+0x2b/0x50
[ 33.106206] [<ffffffff810d1390>] ? check_usage_backwards+0x180/0x180
[ 33.106208] [<ffffffff810d2e71>] mark_lock+0x1a1/0x2a0
[ 33.106210] [<ffffffff810d3c1d>] __lock_acquire+0x66d/0xb50
[ 33.106212] [<ffffffffc03edd76>] ? hiddev_send_event.isra.3+0xe6/0x100 [usbhid]
[ 33.106214] [<ffffffff810d48f9>] lock_acquire+0xa9/0x200
[ 33.106216] [<ffffffff8162f7c5>] ? input_event+0x45/0x70
[ 33.106218] [<ffffffff81833e01>] _raw_spin_lock_irqsave+0x51/0x70
[ 33.106219] [<ffffffff8162f7c5>] ? input_event+0x45/0x70
[ 33.106221] [<ffffffff8162f7c5>] input_event+0x45/0x70
[ 33.106224] [<ffffffffc03cc07f>] hidinput_report_event+0x3f/0x50 [hid]
[ 33.106226] [<ffffffffc03ca1d8>] hid_report_raw_event+0x148/0x1c0 [hid]
[ 33.106228] [<ffffffff8183372f>] ? _raw_spin_unlock_irqrestore+0x5f/0x70
[ 33.106230] [<ffffffffc03ca362>] hid_input_report+0x112/0x190 [hid]
[ 33.106232] [<ffffffffc03eac3c>] hid_irq_in+0x8c/0x210 [usbhid]
[ 33.106234] [<ffffffff815e0a73>] __usb_hcd_giveback_urb+0x83/0x130
[ 33.106236] [<ffffffff815e0c2f>] usb_hcd_giveback_urb+0x3f/0x140
[ 33.106238] [<ffffffff816207cf>] handle_tx_event+0x22f/0x12b0
[ 33.106240] [<ffffffff8162187c>] ? xhci_irq+0x2c/0xa60
[ 33.106241] [<ffffffff81621b06>] xhci_irq+0x2b6/0xa60
[ 33.106243] [<ffffffff816222c1>] xhci_msi_irq+0x11/0x20
[ 33.106245] [<ffffffff810e7e8e>] handle_irq_event_percpu+0x3e/0x340
[ 33.106247] [<ffffffff810e81cd>] handle_irq_event+0x3d/0x60
[ 33.106249] [<ffffffff810eafef>] handle_edge_irq+0x7f/0x120
[ 33.106251] [<ffffffff8101c85e>] handle_irq+0x1e/0x30
[ 33.106253] [<ffffffff8183738f>] do_IRQ+0x4f/0xf0
[ 33.106254] [<ffffffff81835072>] common_interrupt+0x72/0x72
[ 33.106255] <EOI> [<ffffffff8167be05>] ? cpuidle_enter_state+0x75/0x300
[ 33.106258] [<ffffffff8167c147>] cpuidle_enter+0x17/0x20
[ 33.106260] [<ffffffff810c7bb1>] cpu_idle_loop+0x401/0x4e0
[ 33.106261] [<ffffffff810c7ceb>] cpu_startup_entry+0x5b/0x60
[ 33.106262] [<ffffffff81817cca>] rest_init+0x13a/0x140
[ 33.106264] [<ffffffff81817b95>] ? rest_init+0x5/0x140
[ 33.106266] [<ffffffff81f590ee>] start_kernel+0x499/0x4a4
[ 33.106267] [<ffffffff81f58a4e>] ? set_init_arg+0x53/0x53
[ 33.106269] [<ffffffff81f58120>] ? early_idt_handlers+0x120/0x120
[ 33.106271] [<ffffffff81f585ee>] x86_64_start_reservations+0x2a/0x2c
[ 33.106272] [<ffffffff81f58733>] x86_64_start_kernel+0x143/0x152
I have fixed lockdep discussed here: https://lkml.org/lkml/2014/8/25/515 but as I'm not sure if my fix was any good I also tried to revert commit causing that and still I see this.
I have not tried bisecting yet but tried to check if anything has changed around those locks recently but did not spot anything obvious yet.
-Kari
^ permalink raw reply [flat|nested] 4+ messages in thread* INFO: possible irq lock inversion dependency detected
@ 2006-07-08 16:25 Arne Ahrend
2006-07-08 17:12 ` Arjan van de Ven
0 siblings, 1 reply; 4+ messages in thread
From: Arne Ahrend @ 2006-07-08 16:25 UTC (permalink / raw)
To: linux-kernel
2.6.17-mm6 produces the following warning, but appears to be working perfectly fine.
Cheers,
Arne
=========================================================
[ INFO: possible irq lock inversion dependency detected ]
---------------------------------------------------------
swapper/0 just changed the state of lock:
(&bfusb->lock){..?+}, at: [<e28e59e2>] bfusb_rx_complete+0x34/0x468 [bfusb]
but this lock took another, hard-irq-unsafe lock in the past:
(&skb_queue_lock_key){-+..}
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:
-> (&bfusb->lock){..?+} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265f0f>] _write_lock_irqsave+0x2d/0x3c
[<e28e528d>] bfusb_open+0x27/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
in-hardirq-R at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265d7e>] _read_lock+0x24/0x32
[<e28e59e2>] bfusb_rx_complete+0x34/0x468 [bfusb]
[<e2884c0d>] usb_hcd_giveback_urb+0x18/0x46 [usbcore]
[<e086c74c>] uhci_giveback_urb+0x120/0x14a [uhci_hcd]
[<e086cda9>] uhci_scan_schedule+0x536/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-R at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265d7e>] _read_lock+0x24/0x32
[<e28e6096>] bfusb_send_frame+0x280/0x2b6 [bfusb]
[<e291ee60>] hci_send_frame+0x55/0x5d [bluetooth]
[<e291f14a>] hci_cmd_task+0x94/0xcd [bluetooth]
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
hardirq-on-R at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265d7e>] _read_lock+0x24/0x32
[<e28e6096>] bfusb_send_frame+0x280/0x2b6 [bfusb]
[<e291ee60>] hci_send_frame+0x55/0x5d [bluetooth]
[<e291f14a>] hci_cmd_task+0x94/0xcd [bluetooth]
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<e28e8284>] __key.23218+0x0/0xffffde58 [bfusb]
-> (modlist_lock){.+..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c012ed3b>] is_module_address+0x12/0x6e
[<c0127b3d>] static_obj+0x25/0x2f
[<c012861e>] lockdep_init_map+0x6c/0xab
[<c01a60c7>] __spin_lock_init+0x25/0x6e
[<e0842c6f>] rtl8139_init_one+0x57e/0x81b [8139too]
[<c01aa8b0>] pci_device_probe+0x3a/0x61
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f025b>] __driver_attach+0x3b/0x66
[<c01efbee>] bus_for_each_dev+0x46/0x6d
[<c01f00b4>] driver_attach+0x16/0x1b
[<c01ef876>] bus_add_driver+0x6e/0x113
[<c01f04fa>] driver_register+0xa3/0xa8
[<c01aaa33>] __pci_register_driver+0x55/0x7a
[<e080f01c>] ____versions+0x12fc/0xfffffcb8 [firmware_class]
[<c01304c8>] sys_init_module+0x13c5/0x1570
[<c010246b>] syscall_call+0x7/0xb
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c012ed3b>] is_module_address+0x12/0x6e
[<c0127b3d>] static_obj+0x25/0x2f
[<c012861e>] lockdep_init_map+0x6c/0xab
[<c01a60c7>] __spin_lock_init+0x25/0x6e
[<e28865a0>] usb_init_urb+0x30/0x3a [usbcore]
[<e28865e5>] usb_alloc_urb+0x3b/0x46 [usbcore]
[<e28e5302>] bfusb_tx_wakeup+0x40/0x160 [bfusb]
[<e28e60ad>] bfusb_send_frame+0x297/0x2b6 [bfusb]
[<e291ee60>] hci_send_frame+0x55/0x5d [bluetooth]
[<e291f14a>] hci_cmd_task+0x94/0xcd [bluetooth]
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c02b2338>] modlist_lock+0x38/0x60
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c012ed3b>] is_module_address+0x12/0x6e
[<c0127b3d>] static_obj+0x25/0x2f
[<c012861e>] lockdep_init_map+0x6c/0xab
[<c01a60c7>] __spin_lock_init+0x25/0x6e
[<e28865a0>] usb_init_urb+0x30/0x3a [usbcore]
[<e28865e5>] usb_alloc_urb+0x3b/0x46 [usbcore]
[<e28e514e>] bfusb_rx_submit+0x20/0x138 [bfusb]
[<e28e5299>] bfusb_open+0x33/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
-> (&parent->list_lock){.+..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014b01d>] cache_alloc_refill+0x61/0x48d
[<c014b4f8>] kmem_cache_zalloc+0x34/0x78
[<c014bb4b>] kmem_cache_create+0x153/0x414
[<c033569f>] kmem_cache_init+0x144/0x318
[<c0328514>] start_kernel+0x137/0x2be
[<c0100199>] 0xc0100199
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014ac65>] free_block+0xd5/0x10e
[<c014aa0e>] __cache_free+0xb1/0xf5
[<c014aaa8>] kmem_cache_free+0x56/0x70
[<c0111218>] free_task+0x21/0x29
[<c0112b4e>] __put_task_struct+0xc3/0xcd
[<c01143ec>] delayed_put_task_struct+0x3b/0x43
[<c012238e>] __rcu_process_callbacks+0xfc/0x155
[<c01223f9>] rcu_process_callbacks+0x12/0x23
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c04abe0c>] __key.15401+0x0/0x8
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014b01d>] cache_alloc_refill+0x61/0x48d
[<c014b49f>] __kmalloc+0x56/0x7b
[<c0216ade>] __alloc_skb+0x53/0x101
[<e28e5168>] bfusb_rx_submit+0x3a/0x138 [bfusb]
[<e28e5299>] bfusb_open+0x33/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
-> (&skb_queue_lock_key){-+..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c02158f8>] skb_queue_tail+0x16/0x34
[<c0225ebe>] netlink_broadcast+0x1ba/0x2ba
[<c0197f2d>] kobject_uevent+0x347/0x3be
[<c01f09a2>] store_uevent+0x11/0x16
[<c01f14cf>] class_device_attr_store+0x1e/0x23
[<c017e33c>] sysfs_write_file+0x96/0xbd
[<c014e2c7>] vfs_write+0x8e/0x135
[<c014e81c>] sys_write+0x3a/0x61
[<c010246b>] syscall_call+0x7/0xb
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c02158f8>] skb_queue_tail+0x16/0x34
[<c0215232>] sock_queue_rcv_skb+0xca/0x104
[<c02479eb>] udp_queue_rcv_skb+0x1fd/0x222
[<c0248f6d>] udp_rcv+0x38c/0x4ae
[<c022d568>] ip_local_deliver+0x157/0x1e7
[<c022d3e4>] ip_rcv+0x3a6/0x3d3
[<c021a5d9>] netif_receive_skb+0x13d/0x1a4
[<c021bfb4>] process_backlog+0x7c/0x112
[<c021bdbe>] net_rx_action+0x5b/0xed
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
hardirq-on-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265e29>] _spin_lock_bh+0x29/0x37
[<c02480a7>] udp_poll+0x4f/0xc6
[<c0211105>] sock_poll+0x17/0x19
[<c015e205>] do_sys_poll+0x207/0x3c0
[<c015e3ff>] sys_poll+0x41/0x43
[<c010246b>] syscall_call+0x7/0xb
}
... key at: [<c04b41a8>] skb_queue_lock_key+0x0/0x18
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c02158f8>] skb_queue_tail+0x16/0x34
[<e28e5209>] bfusb_rx_submit+0xdb/0x138 [bfusb]
[<e28e5299>] bfusb_open+0x33/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
-> (hcd_data_lock){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e28859f1>] hcd_submit_urb+0x35/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e2886ca4>] usb_start_wait_urb+0x70/0x125 [usbcore]
[<e2886f9b>] usb_control_msg+0xd2/0xee [usbcore]
[<e2887773>] usb_get_descriptor+0x6d/0xa3 [usbcore]
[<e2887a84>] usb_get_device_descriptor+0x43/0x79 [usbcore]
[<e288550d>] usb_add_hcd+0x3b6/0x4cd [usbcore]
[<e288d245>] usb_hcd_pci_probe+0x1db/0x26a [usbcore]
[<c01aa8b0>] pci_device_probe+0x3a/0x61
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f025b>] __driver_attach+0x3b/0x66
[<c01efbee>] bus_for_each_dev+0x46/0x6d
[<c01f00b4>] driver_attach+0x16/0x1b
[<c01ef876>] bus_add_driver+0x6e/0x113
[<c01f04fa>] driver_register+0xa3/0xa8
[<c01aaa33>] __pci_register_driver+0x55/0x7a
[<e080f04e>] ____versions+0x132e/0xfffffcb8 [firmware_class]
[<c01304c8>] sys_init_module+0x13c5/0x1570
[<c010246b>] syscall_call+0x7/0xb
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e2884bce>] urb_unlink+0x35/0x5c [usbcore]
[<e2884c03>] usb_hcd_giveback_urb+0xe/0x46 [usbcore]
[<e086c74c>] uhci_giveback_urb+0x120/0x14a [uhci_hcd]
[<e086cda9>] uhci_scan_schedule+0x536/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e2884bce>] urb_unlink+0x35/0x5c [usbcore]
[<e2884c03>] usb_hcd_giveback_urb+0xe/0x46 [usbcore]
[<e288500d>] usb_hcd_poll_rh_status+0x18c/0x19c [usbcore]
[<e2885028>] rh_timer_func+0xb/0xe [usbcore]
[<c011ac7c>] run_timer_softirq+0xf1/0x14a
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<e289d498>] hcd_data_lock+0x38/0xffff1403 [usbcore]
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e28859f1>] hcd_submit_urb+0x35/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e28e5211>] bfusb_rx_submit+0xe3/0x138 [bfusb]
[<e28e5299>] bfusb_open+0x33/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
-> (&uhci->lock){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e086e4fe>] uhci_hub_control+0x64/0x34c [uhci_hcd]
[<e2885fe4>] hcd_submit_urb+0x628/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e2886ca4>] usb_start_wait_urb+0x70/0x125 [usbcore]
[<e2886f9b>] usb_control_msg+0xd2/0xee [usbcore]
[<e2883635>] hub_probe+0x1c4/0x5f8 [usbcore]
[<e28882db>] usb_probe_interface+0x60/0x95 [usbcore]
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f01c7>] __device_attach+0xe/0x10
[<c01efae8>] bus_for_each_drv+0x46/0x77
[<c01f020c>] device_attach+0x43/0x57
[<c01ef7eb>] bus_attach_device+0x18/0x35
[<c01eec1b>] device_add+0x2ef/0x3dc
[<e2887694>] usb_set_configuration+0x335/0x3a7 [usbcore]
[<e2883224>] usb_new_device+0x2a9/0x301 [usbcore]
[<e2885534>] usb_add_hcd+0x3dd/0x4cd [usbcore]
[<e288d245>] usb_hcd_pci_probe+0x1db/0x26a [usbcore]
[<c01aa8b0>] pci_device_probe+0x3a/0x61
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f025b>] __driver_attach+0x3b/0x66
[<c01efbee>] bus_for_each_dev+0x46/0x6d
[<c01f00b4>] driver_attach+0x16/0x1b
[<c01ef876>] bus_add_driver+0x6e/0x113
[<c01f04fa>] driver_register+0xa3/0xa8
[<c01aaa33>] __pci_register_driver+0x55/0x7a
[<e080f04e>] ____versions+0x132e/0xfffffcb8 [firmware_class]
[<c01304c8>] sys_init_module+0x13c5/0x1570
[<c010246b>] syscall_call+0x7/0xb
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e086e8fb>] uhci_irq+0x115/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e086e0a2>] uhci_hub_status_data+0x22/0x136 [uhci_hcd]
[<e2884eb4>] usb_hcd_poll_rh_status+0x33/0x19c [usbcore]
[<e2885028>] rh_timer_func+0xb/0xe [usbcore]
[<c011ac7c>] run_timer_softirq+0xf1/0x14a
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<e0871940>] __key.18912+0x0/0xffffd523 [uhci_hcd]
-> (&parent->list_lock){.+..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014b01d>] cache_alloc_refill+0x61/0x48d
[<c014b4f8>] kmem_cache_zalloc+0x34/0x78
[<c014bb4b>] kmem_cache_create+0x153/0x414
[<c033569f>] kmem_cache_init+0x144/0x318
[<c0328514>] start_kernel+0x137/0x2be
[<c0100199>] 0xc0100199
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014ac65>] free_block+0xd5/0x10e
[<c014aa0e>] __cache_free+0xb1/0xf5
[<c014aaa8>] kmem_cache_free+0x56/0x70
[<c0111218>] free_task+0x21/0x29
[<c0112b4e>] __put_task_struct+0xc3/0xcd
[<c01143ec>] delayed_put_task_struct+0x3b/0x43
[<c012238e>] __rcu_process_callbacks+0xfc/0x155
[<c01223f9>] rcu_process_callbacks+0x12/0x23
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c04abe0c>] __key.15401+0x0/0x8
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c014b01d>] cache_alloc_refill+0x61/0x48d
[<c014af98>] kmem_cache_alloc+0x33/0x57
[<e086d862>] uhci_urb_enqueue+0x46/0x70e [uhci_hcd]
[<e288615a>] hcd_submit_urb+0x79e/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e2886ca4>] usb_start_wait_urb+0x70/0x125 [usbcore]
[<e2886f9b>] usb_control_msg+0xd2/0xee [usbcore]
[<e28822cc>] hub_port_init+0x1d6/0x45a [usbcore]
[<e2884035>] hub_thread+0x4bd/0x932 [usbcore]
[<c01242f2>] kthread+0xb0/0xde
[<c01006e9>] kernel_thread_helper+0x5/0xb
-> (&retval->lock){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c01f22f2>] dma_pool_alloc+0x14/0x189
[<e086d373>] uhci_alloc_td+0x14/0x42 [uhci_hcd]
[<e086eb62>] uhci_start+0x1b3/0x3a7 [uhci_hcd]
[<e288546d>] usb_add_hcd+0x316/0x4cd [usbcore]
[<e288d245>] usb_hcd_pci_probe+0x1db/0x26a [usbcore]
[<c01aa8b0>] pci_device_probe+0x3a/0x61
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f025b>] __driver_attach+0x3b/0x66
[<c01efbee>] bus_for_each_dev+0x46/0x6d
[<c01f00b4>] driver_attach+0x16/0x1b
[<c01ef876>] bus_add_driver+0x6e/0x113
[<c01f04fa>] driver_register+0xa3/0xa8
[<c01aaa33>] __pci_register_driver+0x55/0x7a
[<e080f04e>] ____versions+0x132e/0xfffffcb8 [firmware_class]
[<c01304c8>] sys_init_module+0x13c5/0x1570
[<c010246b>] syscall_call+0x7/0xb
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c01f21c4>] dma_pool_free+0x14/0x12e
[<e086c4cb>] uhci_free_td+0x6a/0x75 [uhci_hcd]
[<e086cbc9>] uhci_scan_schedule+0x356/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c01f21c4>] dma_pool_free+0x14/0x12e
[<e086c4cb>] uhci_free_td+0x6a/0x75 [uhci_hcd]
[<e086cbc9>] uhci_scan_schedule+0x356/0x7a8 [uhci_hcd]
[<e086e0ae>] uhci_hub_status_data+0x2e/0x136 [uhci_hcd]
[<e2884eb4>] usb_hcd_poll_rh_status+0x33/0x19c [usbcore]
[<e2885028>] rh_timer_func+0xb/0xe [usbcore]
[<c011ac7c>] run_timer_softirq+0xf1/0x14a
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c04b3444>] __key.14448+0x0/0x8
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c01f22f2>] dma_pool_alloc+0x14/0x189
[<e086d6a9>] uhci_alloc_qh+0x21/0xc2 [uhci_hcd]
[<e086d8b7>] uhci_urb_enqueue+0x9b/0x70e [uhci_hcd]
[<e288615a>] hcd_submit_urb+0x79e/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e2886ca4>] usb_start_wait_urb+0x70/0x125 [usbcore]
[<e2886f9b>] usb_control_msg+0xd2/0xee [usbcore]
[<e28822cc>] hub_port_init+0x1d6/0x45a [usbcore]
[<e2884035>] hub_thread+0x4bd/0x932 [usbcore]
[<c01242f2>] kthread+0xb0/0xde
[<c01006e9>] kernel_thread_helper+0x5/0xb
-> (&urb->lock){+...} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e288607f>] hcd_submit_urb+0x6c3/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e2886ca4>] usb_start_wait_urb+0x70/0x125 [usbcore]
[<e2886f9b>] usb_control_msg+0xd2/0xee [usbcore]
[<e2887773>] usb_get_descriptor+0x6d/0xa3 [usbcore]
[<e2887a84>] usb_get_device_descriptor+0x43/0x79 [usbcore]
[<e288550d>] usb_add_hcd+0x3b6/0x4cd [usbcore]
[<e288d245>] usb_hcd_pci_probe+0x1db/0x26a [usbcore]
[<c01aa8b0>] pci_device_probe+0x3a/0x61
[<c01f0165>] driver_probe_device+0x46/0x9a
[<c01f025b>] __driver_attach+0x3b/0x66
[<c01efbee>] bus_for_each_dev+0x46/0x6d
[<c01f00b4>] driver_attach+0x16/0x1b
[<c01ef876>] bus_add_driver+0x6e/0x113
[<c01f04fa>] driver_register+0xa3/0xa8
[<c01aaa33>] __pci_register_driver+0x55/0x7a
[<e080f04e>] ____versions+0x132e/0xfffffcb8 [firmware_class]
[<c01304c8>] sys_init_module+0x13c5/0x1570
[<c010246b>] syscall_call+0x7/0xb
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
}
... key at: [<e289e558>] __key.16238+0x0/0xffff030b [usbcore]
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
-> (&waitqueue_lock_key){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265df2>] _spin_lock_irq+0x2a/0x38
[<c0263e7f>] wait_for_completion+0x15/0xc1
[<c01240e1>] keventd_create_kthread+0x2e/0x5e
[<c01241f6>] kthread_create+0xe5/0x131
[<c0117675>] cpu_callback+0x4d/0x97
[<c033373d>] spawn_ksoftirqd+0x11/0x23
[<c0100246>] _stext+0x26/0x1e6
[<c01006e9>] kernel_thread_helper+0x5/0xb
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c010f489>] complete+0x12/0x3e
[<c0200185>] ata_qc_complete_internal+0x11/0x13
[<c01fddf7>] __ata_qc_complete+0x1cd/0x1d6
[<c01fdf18>] ata_qc_complete+0xa6/0xae
[<c01fe57c>] ata_hsm_qc_complete+0x1be/0x1ce
[<c01febba>] ata_hsm_move+0x62e/0x644
[<c01fec7d>] ata_host_intr+0xad/0xc7
[<c0205d07>] pata_via_interrupt+0xd7/0x10a
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133290>] handle_edge_irq+0xc1/0x10d
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c010f489>] complete+0x12/0x3e
[<c0122155>] wakeme_after_rcu+0xe/0x10
[<c012238e>] __rcu_process_callbacks+0xfc/0x155
[<c01223f9>] rcu_process_callbacks+0x12/0x23
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c0375cd4>] waitqueue_lock_key+0x0/0x8
-> (&rq->rq_lock_key){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c010f651>] init_idle+0x4b/0x70
[<c03331d5>] sched_init+0xb6/0xbf
[<c0328437>] start_kernel+0x5a/0x2be
[<c0100199>] 0xc0100199
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c010f71a>] scheduler_tick+0xa4/0x2a1
[<c011b7e7>] update_process_times+0x51/0x5f
[<c0105810>] timer_interrupt+0x5f/0x9b
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133655>] handle_level_irq+0x76/0xc5
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c010fb9c>] task_rq_lock+0x17/0x1e
[<c010fcc6>] try_to_wake_up+0x18/0xed
[<c010fdaf>] default_wake_function+0x14/0x16
[<c010f118>] __wake_up_common+0x2b/0x50
[<c010f4a2>] complete+0x2b/0x3e
[<c0122155>] wakeme_after_rcu+0xe/0x10
[<c012238e>] __rcu_process_callbacks+0xfc/0x155
[<c01223f9>] rcu_process_callbacks+0x12/0x23
[<c011786f>] tasklet_action+0x45/0x75
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c036326c>] per_cpu__runqueues+0x98c/0x994
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<c010fb9c>] task_rq_lock+0x17/0x1e
[<c010fcc6>] try_to_wake_up+0x18/0xed
[<c010fdaf>] default_wake_function+0x14/0x16
[<c010f118>] __wake_up_common+0x2b/0x50
[<c010f4a2>] complete+0x2b/0x3e
[<c01242d1>] kthread+0x8f/0xde
[<c01006e9>] kernel_thread_helper+0x5/0xb
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c010f50e>] __wake_up+0x15/0x3b
[<e086c816>] uhci_make_qh_idle+0xa0/0xa8 [uhci_hcd]
[<e086cf54>] uhci_scan_schedule+0x6e1/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
-> (base_lock_keys + cpu){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c011b5ce>] lock_timer_base+0x18/0x33
[<c011b65c>] __mod_timer+0x24/0x96
[<c011b738>] mod_timer+0x2d/0x31
[<c03398a6>] con_init+0xb5/0x1e5
[<c0339369>] console_init+0x20/0x30
[<c03284e6>] start_kernel+0x109/0x2be
[<c0100199>] 0xc0100199
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c011b5ce>] lock_timer_base+0x18/0x33
[<c011b605>] del_timer+0x1c/0x4f
[<c01f66de>] scsi_delete_timer+0x10/0x23
[<c01f41a7>] scsi_done+0xd/0x1e
[<c0201f88>] atapi_qc_complete+0x202/0x212
[<c01fddf7>] __ata_qc_complete+0x1cd/0x1d6
[<c01fdf18>] ata_qc_complete+0xa6/0xae
[<c01fe57c>] ata_hsm_qc_complete+0x1be/0x1ce
[<c01febba>] ata_hsm_move+0x62e/0x644
[<c01fec7d>] ata_host_intr+0xad/0xc7
[<c0205d07>] pata_via_interrupt+0xd7/0x10a
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133290>] handle_edge_irq+0xc1/0x10d
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265df2>] _spin_lock_irq+0x2a/0x38
[<c011abb4>] run_timer_softirq+0x29/0x14a
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<c0374fa8>] base_lock_keys+0x0/0x18
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c011b5ce>] lock_timer_base+0x18/0x33
[<c011b65c>] __mod_timer+0x24/0x96
[<c011b738>] mod_timer+0x2d/0x31
[<e086cfd5>] uhci_scan_schedule+0x762/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
-> (&urb->lock#3){++..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e0ae>] uhci_hub_status_data+0x2e/0x136 [uhci_hcd]
[<e2884eb4>] usb_hcd_poll_rh_status+0x33/0x19c [usbcore]
[<e2885028>] rh_timer_func+0xb/0xe [usbcore]
[<c011ac7c>] run_timer_softirq+0xf1/0x14a
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
}
... key at: [<e289e550>] __key.16249+0x0/0xffff0313 [usbcore]
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
-> (&urb->lock#4){+...} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
in-hardirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
}
... key at: [<e28e8294>] __key.17448+0x0/0xffffde48 [bfusb]
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265fb1>] _spin_lock+0x24/0x32
[<e086cd45>] uhci_scan_schedule+0x4d2/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
... acquired at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<e086d83e>] uhci_urb_enqueue+0x22/0x70e [uhci_hcd]
[<e288615a>] hcd_submit_urb+0x79e/0x823 [usbcore]
[<e288650a>] usb_submit_urb+0x1f7/0x21d [usbcore]
[<e28e5211>] bfusb_rx_submit+0xe3/0x138 [bfusb]
[<e28e5299>] bfusb_open+0x33/0x5c [bfusb]
[<e291f8b5>] hci_dev_open+0x55/0x1e0 [bluetooth]
[<e2922ab2>] hci_sock_ioctl+0xd1/0x229 [bluetooth]
[<c02118b8>] sock_ioctl+0x193/0x1b9
[<c015d868>] do_ioctl+0x24/0x66
[<c015daf4>] vfs_ioctl+0x24a/0x25d
[<c015db35>] sys_ioctl+0x2e/0x4d
[<c010246b>] syscall_call+0x7/0xb
the second lock's dependencies:
-> (&skb_queue_lock_key){-+..} ops: 0 {
initial-use at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c02158f8>] skb_queue_tail+0x16/0x34
[<c0225ebe>] netlink_broadcast+0x1ba/0x2ba
[<c0197f2d>] kobject_uevent+0x347/0x3be
[<c01f09a2>] store_uevent+0x11/0x16
[<c01f14cf>] class_device_attr_store+0x1e/0x23
[<c017e33c>] sysfs_write_file+0x96/0xbd
[<c014e2c7>] vfs_write+0x8e/0x135
[<c014e81c>] sys_write+0x3a/0x61
[<c010246b>] syscall_call+0x7/0xb
in-softirq-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265db9>] _spin_lock_irqsave+0x2d/0x3c
[<c02158f8>] skb_queue_tail+0x16/0x34
[<c0215232>] sock_queue_rcv_skb+0xca/0x104
[<c02479eb>] udp_queue_rcv_skb+0x1fd/0x222
[<c0248f6d>] udp_rcv+0x38c/0x4ae
[<c022d568>] ip_local_deliver+0x157/0x1e7
[<c022d3e4>] ip_rcv+0x3a6/0x3d3
[<c021a5d9>] netif_receive_skb+0x13d/0x1a4
[<c021bfb4>] process_backlog+0x7c/0x112
[<c021bdbe>] net_rx_action+0x5b/0xed
[<c0117a76>] __do_softirq+0x45/0x9f
[<c010480e>] do_softirq+0x4d/0xab
hardirq-on-W at:
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265e29>] _spin_lock_bh+0x29/0x37
[<c02480a7>] udp_poll+0x4f/0xc6
[<c0211105>] sock_poll+0x17/0x19
[<c015e205>] do_sys_poll+0x207/0x3c0
[<c015e3ff>] sys_poll+0x41/0x43
[<c010246b>] syscall_call+0x7/0xb
}
... key at: [<c04b41a8>] skb_queue_lock_key+0x0/0x18
stack backtrace:
[<c0103433>] show_trace+0x16/0x19
[<c0103913>] dump_stack+0x1a/0x1f
[<c01285a5>] print_irq_inversion_bug+0xe3/0xf0
[<c012881d>] check_usage_forwards+0x32/0x3b
[<c01289d5>] mark_lock+0x1af/0x35a
[<c0129504>] __lock_acquire+0x328/0x929
[<c012a05e>] lock_acquire+0x4f/0x6d
[<c0265d7e>] _read_lock+0x24/0x32
[<e28e59e2>] bfusb_rx_complete+0x34/0x468 [bfusb]
[<e2884c0d>] usb_hcd_giveback_urb+0x18/0x46 [usbcore]
[<e086c74c>] uhci_giveback_urb+0x120/0x14a [uhci_hcd]
[<e086cda9>] uhci_scan_schedule+0x536/0x7a8 [uhci_hcd]
[<e086e907>] uhci_irq+0x121/0x137 [uhci_hcd]
[<e28857a7>] usb_hcd_irq+0x27/0x58 [usbcore]
[<c0132452>] handle_IRQ_event+0x18/0x4a
[<c0133349>] handle_fasteoi_irq+0x6d/0xae
[<c010490c>] do_IRQ+0xa0/0xc4
=======================
[<c0102e59>] common_interrupt+0x25/0x2c
[<c01013de>] cpu_idle+0x3c/0x65
[<c010043d>] rest_init+0x37/0x3e
[<c0328699>] start_kernel+0x2bc/0x2be
[<c0100199>] 0xc0100199
_____________________________________________________________________
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: INFO: possible irq lock inversion dependency detected
2006-07-08 16:25 Arne Ahrend
@ 2006-07-08 17:12 ` Arjan van de Ven
0 siblings, 0 replies; 4+ messages in thread
From: Arjan van de Ven @ 2006-07-08 17:12 UTC (permalink / raw)
To: Arne Ahrend; +Cc: linux-kernel
On Sat, 2006-07-08 at 18:25 +0200, Arne Ahrend wrote:
> 2.6.17-mm6 produces the following warning, but appears to be working perfectly fine.
>
>
> Cheers,
Another private skb queue.. I'm starting to think that the patch below
is going to be needed... Ingo ?
Arne: Can you try this patch and verify it makes the message go away?
---
include/linux/skbuff.h | 1 -
1 file changed, 1 deletion(-)
Index: linux-2.6.17-mm6/include/linux/skbuff.h
===================================================================
--- linux-2.6.17-mm6.orig/include/linux/skbuff.h
+++ linux-2.6.17-mm6/include/linux/skbuff.h
@@ -609,7 +609,6 @@ extern struct lock_class_key skb_queue_l
static inline void skb_queue_head_init(struct sk_buff_head *list)
{
spin_lock_init(&list->lock);
- lockdep_set_class(&list->lock, &skb_queue_lock_key);
list->prev = list->next = (struct sk_buff *)list;
list->qlen = 0;
}
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2014-09-05 16:21 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2006-07-08 23:00 INFO: possible irq lock inversion dependency detected Arne Ahrend
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2014-09-05 16:20 Kari Suvanto
2006-07-08 16:25 Arne Ahrend
2006-07-08 17:12 ` Arjan van de Ven
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