Messages in this thread | | | Date | Tue, 14 May 2013 20:31:08 +0200 | From | Ingo Molnar <> | Subject | Re: [GIT] HID |
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* Jiri Kosina <jkosina@suse.cz> wrote:
> > FYI, there's a new HID related lockdep and RCU splat upstream, probably > > relatd to the debugfs locking fixes: > > > > [ 79.088631] ====================================================== > > [ 79.088631] [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ] > > [ 79.088631] 3.9.0-13694-g7cf229a-dirty #224212 Tainted: G W > > [ 79.088631] ------------------------------------------------------ > > [ 79.088631] swapper/0/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: > > [ 79.088631] (&hdev->debug_list_lock){+.+...}, at: [<ffffffff82e510d9>] hid_debug_event+0x2e/0xd0 > > [ 79.088631] > > > > See the full bootlog below. It's from an allyesconfig x86-64 bootup log. > > Hi Ingo, > > thanks for the report. I have a fix for this in my tree already and am > going to send pull request to Linus shortly.
FYI, the fixes in your tree apparently did not fix the bug - I'm still getting the same lockdep splat below.
Thanks,
Ingo
initcall sensor_hub_driver_init+0x0/0x16 returned 0 after 7779 usecs calling hid_init+0x0/0x45 @ 1 bus: 'usb': add driver usbhid bus: 'usb': driver_probe_device: matched device 2-2:1.0 with driver usbhid bus: 'usb': really_probe: probing driver usbhid with device 2-2:1.0 usbhid 2-2:1.0: usb_probe_interface usbhid 2-2:1.0: usb_probe_interface - got id device: '0003:1241:1503.0001': device_add bus: 'hid': add device 0003:1241:1503.0001 PM: Adding info for hid:0003:1241:1503.0001 bus: 'hid': driver_probe_device: matched device 0003:1241:1503.0001 with driver hid-generic bus: 'hid': really_probe: probing driver hid-generic with device 0003:1241:1503.0001 device: 'input2': device_add PM: Adding info for No Bus:input2 input: USB Keyboard as /devices/pci0000:00/0000:00:02.0/usb2/2-2/2-2:1.0/input/input2
====================================================== [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ] 3.9.0+ #224324 Not tainted ------------------------------------------------------ swapper/0/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: (&hdev->debug_list_lock){+.+...}, at: [<c1ba316b>] hid_debug_event+0x1e/0xa8
and this task is already holding: (&(&usbhid->lock)->rlock){-.....}, at: [<c1bc08e4>] usb_hidinput_input_event+0x7c/0xaf which would create a new lock dependency: (&(&usbhid->lock)->rlock){-.....} -> (&hdev->debug_list_lock){+.+...}
but this new dependency connects a HARDIRQ-irq-safe lock: (&(&usbhid->lock)->rlock){-.....} ... which became HARDIRQ-irq-safe at: [<c106974e>] __lock_acquire+0x241/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbe21a>] _raw_spin_lock+0x3d/0x4a [<c1bc0764>] hid_ctrl+0x28/0x12c [<c19bfcec>] usb_hcd_giveback_urb+0x40/0x84 [<c19e15cc>] finish_urb+0xbe/0xf4 [<c19e163b>] takeback_td+0x39/0x99 [<c19e1850>] dl_done_list+0x1b5/0x1e4 [<c19e28a1>] ohci_irq+0x16c/0x27a [<c19bf46d>] usb_hcd_irq+0x26/0x4f [<c1088cc2>] handle_irq_event_percpu+0x24/0x11f [<c1088de9>] handle_irq_event+0x2c/0x43 [<c108ad05>] handle_fasteoi_irq+0x6a/0x97
to a HARDIRQ-irq-unsafe lock: (&hdev->debug_list_lock){+.+...} ... which became HARDIRQ-irq-unsafe at: ... [<c10697b1>] __lock_acquire+0x2a4/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc16dc>] usbhid_set_leds+0x77/0x8b [<c1bc1a8e>] usbhid_start+0x39e/0x3fd [<c1ba5047>] hid_device_probe+0xa0/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1 ---- ---- lock(&hdev->debug_list_lock); local_irq_disable(); lock(&(&usbhid->lock)->rlock); lock(&hdev->debug_list_lock); <Interrupt> lock(&(&usbhid->lock)->rlock);
*** DEADLOCK ***
7 locks held by swapper/0/1: #0: (&__lockdep_no_validate__){......}, at: [<c1619df1>] device_lock+0xd/0xf #1: (&__lockdep_no_validate__){......}, at: [<c1619df1>] device_lock+0xd/0xf #2: (&__lockdep_no_validate__){......}, at: [<c1619df1>] device_lock+0xd/0xf #3: (input_mutex){+.+.+.}, at: [<c1a3a76b>] input_register_device+0x2e3/0x38f #4: (&(&dev->event_lock)->rlock){......}, at: [<c1a39d92>] input_inject_event+0x35/0x75 #5: (rcu_read_lock){.+.+..}, at: [<c1a39000>] rcu_lock_acquire.constprop.16+0x0/0x35 #6: (&(&usbhid->lock)->rlock){-.....}, at: [<c1bc08e4>] usb_hidinput_input_event+0x7c/0xaf
the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&(&usbhid->lock)->rlock){-.....} ops: 4 { IN-HARDIRQ-W at: [<c106974e>] __lock_acquire+0x241/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbe21a>] _raw_spin_lock+0x3d/0x4a [<c1bc0764>] hid_ctrl+0x28/0x12c [<c19bfcec>] usb_hcd_giveback_urb+0x40/0x84 [<c19e15cc>] finish_urb+0xbe/0xf4 [<c19e163b>] takeback_td+0x39/0x99 [<c19e1850>] dl_done_list+0x1b5/0x1e4 [<c19e28a1>] ohci_irq+0x16c/0x27a [<c19bf46d>] usb_hcd_irq+0x26/0x4f [<c1088cc2>] handle_irq_event_percpu+0x24/0x11f [<c1088de9>] handle_irq_event+0x2c/0x43 [<c108ad05>] handle_fasteoi_irq+0x6a/0x97 INITIAL USE at: [<c1069811>] __lock_acquire+0x304/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbe272>] _raw_spin_lock_irqsave+0x4b/0x5b [<c1bc0d81>] usbhid_submit_report+0x23/0x45 [<c1bc15d7>] usbhid_init_reports+0x2a/0xb8 [<c1bc1a72>] usbhid_start+0x382/0x3fd [<c1ba5047>] hid_device_probe+0xa0/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28 } ... key at: [<c2bb56bc>] __key.27543+0x0/0x8 ... acquired at: [<c1067d3d>] check_irq_usage+0x40/0x86 [<c1069f3f>] __lock_acquire+0xa32/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc08f4>] usb_hidinput_input_event+0x8c/0xaf [<c1a39c8f>] input_handle_event+0x376/0x444 [<c1a39dbb>] input_inject_event+0x5e/0x75 [<c14ffe22>] kbd_update_leds_helper+0x4e/0x7b [<c1500844>] kbd_start+0x2d/0x36 [<c1a3aa41>] input_register_handle+0x89/0x93 [<c150023c>] kbd_connect+0x31/0x60 [<c1a3919d>] input_attach_handler+0x168/0x19e [<c1a3a7a5>] input_register_device+0x31d/0x38f [<c1ba8fde>] hidinput_connect+0x3a2/0x3e0 [<c1ba4d91>] hid_connect+0x64/0x27a [<c1ba5059>] hid_device_probe+0xb2/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28
the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&hdev->debug_list_lock){+.+...} ops: 2 { HARDIRQ-ON-W at: [<c10697b1>] __lock_acquire+0x2a4/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc16dc>] usbhid_set_leds+0x77/0x8b [<c1bc1a8e>] usbhid_start+0x39e/0x3fd [<c1ba5047>] hid_device_probe+0xa0/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28 SOFTIRQ-ON-W at: [<c10697d0>] __lock_acquire+0x2c3/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc16dc>] usbhid_set_leds+0x77/0x8b [<c1bc1a8e>] usbhid_start+0x39e/0x3fd [<c1ba5047>] hid_device_probe+0xa0/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28 INITIAL USE at: [<c1069811>] __lock_acquire+0x304/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc16dc>] usbhid_set_leds+0x77/0x8b [<c1bc1a8e>] usbhid_start+0x39e/0x3fd [<c1ba5047>] hid_device_probe+0xa0/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28 } ... key at: [<c2bb5340>] __key.24951+0x0/0x8 ... acquired at: [<c1067d3d>] check_irq_usage+0x40/0x86 [<c1069f3f>] __lock_acquire+0xa32/0xd54 [<c106a662>] lock_acquire+0x76/0x8a [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1bc08f4>] usb_hidinput_input_event+0x8c/0xaf [<c1a39c8f>] input_handle_event+0x376/0x444 [<c1a39dbb>] input_inject_event+0x5e/0x75 [<c14ffe22>] kbd_update_leds_helper+0x4e/0x7b [<c1500844>] kbd_start+0x2d/0x36 [<c1a3aa41>] input_register_handle+0x89/0x93 [<c150023c>] kbd_connect+0x31/0x60 [<c1a3919d>] input_attach_handler+0x168/0x19e [<c1a3a7a5>] input_register_device+0x31d/0x38f [<c1ba8fde>] hidinput_connect+0x3a2/0x3e0 [<c1ba4d91>] hid_connect+0x64/0x27a [<c1ba5059>] hid_device_probe+0xb2/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c2498841>] hid_init+0x26/0x45 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28
stack backtrace: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.9.0+ #224324 Hardware name: System manufacturer System Product Name/A8N-E, BIOS ASUS A8N-E ACPI BIOS Revision 1008 08/22/2005 c21546c7 c21546c7 f647b884 c1daff0d f647b918 c1067cf3 c2153749 c21546c7 00000001 00000000 00000000 00000000 00000000 00000000 00000001 f647b8c4 c27d5bf8 c27d5ae8 f647b8c4 f647b8e8 c21546b7 f6480000 c27d5ae8 00000029 Call Trace: [<c1daff0d>] dump_stack+0x16/0x18 [<c1067cf3>] check_usage+0x2df/0x2e9 [<c106702f>] ? __bfs+0x13/0x17e [<c1067d3d>] check_irq_usage+0x40/0x86 [<c1069f3f>] __lock_acquire+0xa32/0xd54 [<c1067a47>] ? check_usage+0x33/0x2e9 [<c10672b0>] ? find_usage_backwards+0x58/0x5f [<c1067a47>] ? check_usage+0x33/0x2e9 [<c106a662>] lock_acquire+0x76/0x8a [<c1ba316b>] ? hid_debug_event+0x1e/0xa8 [<c1dbc602>] __mutex_lock_common+0x4f/0x36f [<c1ba316b>] ? hid_debug_event+0x1e/0xa8 [<c13c70b1>] ? vsnprintf+0x149/0x2a2 [<c10bfd9f>] ? kmem_cache_alloc+0xbb/0xe9 [<c1dbc960>] mutex_lock_nested+0x3e/0x44 [<c1ba316b>] ? hid_debug_event+0x1e/0xa8 [<c1ba316b>] hid_debug_event+0x1e/0xa8 [<c1ba3300>] hid_dump_input+0x4d/0x78 [<c1ba47dc>] hid_set_field+0x29/0xab [<c1dbe279>] ? _raw_spin_lock_irqsave+0x52/0x5b [<c1bc08f4>] usb_hidinput_input_event+0x8c/0xaf [<c1bc0868>] ? hid_ctrl+0x12c/0x12c [<c1a39c8f>] input_handle_event+0x376/0x444 [<c1bc0868>] ? hid_ctrl+0x12c/0x12c [<c1a39dbb>] input_inject_event+0x5e/0x75 [<c14ffe22>] kbd_update_leds_helper+0x4e/0x7b [<c1500844>] kbd_start+0x2d/0x36 [<c1a3aa41>] input_register_handle+0x89/0x93 [<c150023c>] kbd_connect+0x31/0x60 [<c1a3919d>] input_attach_handler+0x168/0x19e [<c1a3a7a5>] input_register_device+0x31d/0x38f [<c1ba8fde>] hidinput_connect+0x3a2/0x3e0 [<c1ba4d91>] hid_connect+0x64/0x27a [<c1068472>] ? trace_hardirqs_on+0xb/0xd [<c1dbe3b0>] ? _raw_spin_unlock_irq+0x22/0x30 [<c161feb0>] ? device_wakeup_enable+0x62/0x77 [<c161fede>] ? device_set_wakeup_enable+0x19/0x2a [<c1bc1a9b>] ? usbhid_start+0x3ab/0x3fd [<c1ba466e>] ? hid_open_report+0x178/0x1fd [<c1ba4c96>] ? hid_match_id+0x14/0x29 [<c1ba5059>] hid_device_probe+0xb2/0x109 [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a68a>] __device_attach+0x1c/0x2e [<c16191eb>] bus_for_each_drv+0x3a/0x6b [<c161a22a>] device_attach+0x58/0x69 [<c161a66e>] ? __driver_attach+0x5f/0x5f [<c1619368>] bus_probe_device+0x22/0x77 [<c1617d02>] device_add+0x3bc/0x542 [<c1ba550f>] hid_add_device+0x1f0/0x224 [<c10c0000>] ? kmem_cache_open+0xf6/0x254 [<c1bc0583>] usbhid_probe+0x37f/0x3c0 [<c19c4a99>] usb_probe_interface+0x129/0x17a [<c161a4a3>] driver_probe_device+0xe2/0x24e [<c161a652>] __driver_attach+0x43/0x5f [<c1618f1a>] bus_for_each_dev+0x3e/0x68 [<c161a252>] driver_attach+0x17/0x19 [<c161a60f>] ? driver_probe_device+0x24e/0x24e [<c161956f>] bus_add_driver+0xd6/0x1e5 [<c161ab25>] driver_register+0x7c/0xf7 [<c13d6b9d>] ? __raw_spin_lock_init+0x2d/0x4d [<c19c4c14>] usb_register_driver+0x6c/0x111 [<c105f325>] ? timekeeping_get_ns.constprop.9+0xf/0x54 [<c2498841>] hid_init+0x26/0x45 [<c249881b>] ? sensor_hub_driver_init+0x16/0x16 [<c2447a50>] do_one_initcall+0x4b/0x10e [<c249881b>] ? sensor_hub_driver_init+0x16/0x16 [<c2447c27>] kernel_init_freeable+0x114/0x1b3 [<c24473c1>] ? loglevel+0x2b/0x2b [<c1d9d9ec>] kernel_init+0xb/0xbe [<c1dbf337>] ret_from_kernel_thread+0x1b/0x28 [<c1d9d9e1>] ? rest_init+0xc1/0xc1 device: 'event2': device_add PM: Adding info for No Bus:event2 evbug: Connected device: input2 ( USB Keyboard at usb-0000:00:02.0-2/input0) device: 'hidraw0': device_add PM: Adding info for No Bus:hidraw0 hid-generic 0003:1241:1503.0001: input,hidraw0: USB HID v1.10 Keyboard [ USB Keyboard] on usb-0000:00:02.0-2/input0 driver: '0003:1241:1503.0001': driver_bound: bound to device 'hid-generic' bus: 'hid': really_probe: bound device 0003:1241:1503.0001 to driver hid-generic driver: '2-2:1.0': driver_bound: bound to device 'usbhid' bus: 'usb': really_probe: bound device 2-2:1.0 to driver usbhid bus: 'usb': driver_probe_device: matched device 2-2:1.1 with driver usbhid bus: 'usb': really_probe: probing driver usbhid with device 2-2:1.1 usbhid 2-2:1.1: usb_probe_interface usbhid 2-2:1.1: usb_probe_interface - got id device: '0003:1241:1503.0002': device_add bus: 'hid': add device 0003:1241:1503.0002 PM: Adding info for hid:0003:1241:1503.0002 bus: 'hid': driver_probe_device: matched device 0003:1241:1503.0002 with driver hid-generic bus: 'hid': really_probe: probing driver hid-generic with device 0003:1241:1503.0002 device: 'input3': device_add PM: Adding info for No Bus:input3 input: USB Keyboard as /devices/pci0000:00/0000:00:02.0/usb2/2-2/2-2:1.1/input/input3 device: 'event3': device_add PM: Adding info for No Bus:event3 evbug: Connected device: input3 ( USB Keyboard at usb-0000:00:02.0-2/input1) device: 'hidraw1': device_add PM: Adding info for No Bus:hidraw1 hid-generic 0003:1241:1503.0002: input,hidraw1: USB HID v1.10 Device [ USB Keyboard] on usb-0000:00:02.0-2/input1 driver: '0003:1241:1503.0002': driver_bound: bound to device 'hid-generic' bus: 'hid': really_probe: bound device 0003:1241:1503.0002 to driver hid-generic driver: '2-2:1.1': driver_bound: bound to device 'usbhid' bus: 'usb': really_probe: bound device 2-2:1.1 to driver usbhid usbcore: registered new interface driver usbhid usbhid: USB HID core driver
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