[info] Using makefile-style concurrent boot in runlevel 2. [ 14.513115][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.171' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.802175][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 29.012207][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 29.023323][ T83] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 29.032427][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.042192][ T83] usb 1-1: config 0 descriptor?? [ 29.086088][ T83] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input5 [ 29.292438][ T83] imon:send_packet: packet tx failed (-71) [ 29.312173][ T83] imon 1-1:0.0: panel buttons/knobs setup failed [ 29.318660][ T83] Registered IR keymap rc-imon-pad [ 29.332122][ T83] imon:send_packet: packet tx failed (-71) [ 29.352144][ T83] imon 1-1:0.0: remote input dev register failed [ 29.358561][ T83] imon 1-1:0.0: imon_init_intf0: rc device setup failed [ 29.452474][ T83] imon 1-1:0.0: unable to initialize intf0, err 0 [ 29.459039][ T83] imon:imon_probe: failed to initialize context! [ 29.465486][ T83] imon 1-1:0.0: unable to register, err -19 [ 29.475390][ T83] usb 1-1: USB disconnect, device number 2 [ 29.842119][ T83] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 30.052228][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 30.063210][ T83] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 30.072278][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.081741][ T83] usb 1-1: config 0 descriptor?? [ 30.124641][ T83] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input7 [ 30.362131][ T83] Registered IR keymap rc-imon-pad [ 30.582723][ T83] rc rc0: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 30.593417][ T83] input: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input8 [ 30.608236][ T83] imon 1-1:0.0: iMON device (15c2:0035, intf0) on usb<1:3> initialized executing program [ 30.763569][ T83] usb 1-1: USB disconnect, device number 3 [ 30.967414][ T1804] [ 30.969778][ T1804] ====================================================== [ 30.976773][ T1804] WARNING: possible circular locking dependency detected [ 30.983813][ T1804] 5.6.0-rc5-syzkaller #0 Not tainted [ 30.989075][ T1804] ------------------------------------------------------ [ 30.996074][ T1804] syz-executor418/1804 is trying to acquire lock: [ 31.002470][ T1804] ffffffff878ee860 (driver_lock){+.+.}, at: display_open+0x1f/0x220 [ 31.010454][ T1804] [ 31.010454][ T1804] but task is already holding lock: [ 31.017812][ T1804] ffffffff8768a2c8 (minor_rwsem){++++}, at: usb_open+0x23/0x270 [ 31.025435][ T1804] [ 31.025435][ T1804] which lock already depends on the new lock. [ 31.025435][ T1804] [ 31.035935][ T1804] [ 31.035935][ T1804] the existing dependency chain (in reverse order) is: [ 31.044942][ T1804] [ 31.044942][ T1804] -> #2 (minor_rwsem){++++}: [ 31.051696][ T1804] down_write+0x92/0x150 [ 31.056491][ T1804] usb_register_dev+0x19d/0x740 [ 31.061844][ T1804] imon_probe+0x24a0/0x2b89 [ 31.066847][ T1804] usb_probe_interface+0x310/0x800 [ 31.072458][ T1804] really_probe+0x290/0xac0 [ 31.077461][ T1804] driver_probe_device+0x223/0x350 [ 31.083074][ T1804] __device_attach_driver+0x1d1/0x290 [ 31.088946][ T1804] bus_for_each_drv+0x162/0x1e0 [ 31.094309][ T1804] __device_attach+0x217/0x390 [ 31.099583][ T1804] bus_probe_device+0x1e4/0x290 [ 31.104980][ T1804] device_add+0x1459/0x1bf0 [ 31.110028][ T1804] usb_set_configuration+0xe47/0x17d0 [ 31.115908][ T1804] usb_generic_driver_probe+0x9d/0xe0 [ 31.121820][ T1804] usb_probe_device+0xd9/0x230 [ 31.127148][ T1804] really_probe+0x290/0xac0 [ 31.132156][ T1804] driver_probe_device+0x223/0x350 [ 31.137772][ T1804] __device_attach_driver+0x1d1/0x290 [ 31.143689][ T1804] bus_for_each_drv+0x162/0x1e0 [ 31.149038][ T1804] __device_attach+0x217/0x390 [ 31.154355][ T1804] bus_probe_device+0x1e4/0x290 [ 31.159728][ T1804] device_add+0x1459/0x1bf0 [ 31.164744][ T1804] usb_new_device.cold+0x540/0xcd0 [ 31.170361][ T1804] hub_event+0x21cb/0x4300 [ 31.175286][ T1804] process_one_work+0x94b/0x1620 [ 31.180744][ T1804] worker_thread+0x7ab/0xe20 [ 31.185853][ T1804] kthread+0x318/0x420 [ 31.190427][ T1804] ret_from_fork+0x24/0x30 [ 31.195338][ T1804] [ 31.195338][ T1804] -> #1 (&ictx->lock){+.+.}: [ 31.202249][ T1804] __mutex_lock+0x158/0x1360 [ 31.207459][ T1804] imon_probe+0xf56/0x2b89 [ 31.212384][ T1804] usb_probe_interface+0x310/0x800 [ 31.218011][ T1804] really_probe+0x290/0xac0 [ 31.223068][ T1804] driver_probe_device+0x223/0x350 [ 31.228685][ T1804] __device_attach_driver+0x1d1/0x290 [ 31.234561][ T1804] bus_for_each_drv+0x162/0x1e0 [ 31.239947][ T1804] __device_attach+0x217/0x390 [ 31.245210][ T1804] bus_probe_device+0x1e4/0x290 [ 31.250561][ T1804] device_add+0x1459/0x1bf0 [ 31.255596][ T1804] usb_set_configuration+0xe47/0x17d0 [ 31.261482][ T1804] usb_generic_driver_probe+0x9d/0xe0 [ 31.267358][ T1804] usb_probe_device+0xd9/0x230 [ 31.272632][ T1804] really_probe+0x290/0xac0 [ 31.277642][ T1804] driver_probe_device+0x223/0x350 [ 31.283261][ T1804] __device_attach_driver+0x1d1/0x290 [ 31.289184][ T1804] bus_for_each_drv+0x162/0x1e0 [ 31.294534][ T1804] __device_attach+0x217/0x390 [ 31.299793][ T1804] bus_probe_device+0x1e4/0x290 [ 31.305147][ T1804] device_add+0x1459/0x1bf0 [ 31.310153][ T1804] usb_new_device.cold+0x540/0xcd0 [ 31.315832][ T1804] hub_event+0x21cb/0x4300 [ 31.320766][ T1804] process_one_work+0x94b/0x1620 [ 31.326202][ T1804] worker_thread+0x96/0xe20 [ 31.331201][ T1804] kthread+0x318/0x420 [ 31.335770][ T1804] ret_from_fork+0x24/0x30 [ 31.340676][ T1804] [ 31.340676][ T1804] -> #0 (driver_lock){+.+.}: [ 31.347421][ T1804] __lock_acquire+0x1f74/0x3b60 [ 31.352782][ T1804] lock_acquire+0x130/0x340 [ 31.357798][ T1804] __mutex_lock+0x158/0x1360 [ 31.362893][ T1804] display_open+0x1f/0x220 [ 31.367819][ T1804] usb_open+0x1df/0x270 [ 31.372477][ T1804] chrdev_open+0x219/0x5c0 [ 31.377412][ T1804] do_dentry_open+0x494/0x1120 [ 31.382683][ T1804] path_openat+0x1222/0x32a0 [ 31.387815][ T1804] do_filp_open+0x192/0x260 [ 31.392835][ T1804] do_sys_openat2+0x54c/0x740 [ 31.398012][ T1804] do_sys_open+0xc3/0x140 [ 31.402849][ T1804] do_syscall_64+0xb6/0x5a0 [ 31.407866][ T1804] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.414250][ T1804] [ 31.414250][ T1804] other info that might help us debug this: [ 31.414250][ T1804] [ 31.424471][ T1804] Chain exists of: [ 31.424471][ T1804] driver_lock --> &ictx->lock --> minor_rwsem [ 31.424471][ T1804] [ 31.436420][ T1804] Possible unsafe locking scenario: [ 31.436420][ T1804] [ 31.443875][ T1804] CPU0 CPU1 [ 31.449228][ T1804] ---- ---- [ 31.454567][ T1804] lock(minor_rwsem); [ 31.458611][ T1804] lock(&ictx->lock); [ 31.465170][ T1804] lock(minor_rwsem); [ 31.471742][ T1804] lock(driver_lock); [ 31.475782][ T1804] [ 31.475782][ T1804] *** DEADLOCK *** [ 31.475782][ T1804] [ 31.484024][ T1804] 1 lock held by syz-executor418/1804: [ 31.489473][ T1804] #0: ffffffff8768a2c8 (minor_rwsem){++++}, at: usb_open+0x23/0x270 [ 31.497530][ T1804] [ 31.497530][ T1804] stack backtrace: [ 31.503407][ T1804] CPU: 0 PID: 1804 Comm: syz-executor418 Not tainted 5.6.0-rc5-syzkaller #0 [ 31.512052][ T1804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.522110][ T1804] Call Trace: [ 31.525393][ T1804] dump_stack+0xef/0x16e [ 31.529619][ T1804] check_noncircular+0x32e/0x3e0 [ 31.534537][ T1804] ? __kernel_text_address+0x9/0x30 [ 31.539719][ T1804] ? print_circular_bug.isra.0+0x1e0/0x1e0 [ 31.545508][ T1804] ? graph_lock+0x80/0x180 [ 31.549923][ T1804] ? __lockdep_free_key_range+0x110/0x110 [ 31.555641][ T1804] ? mark_lock+0xbc/0x1160 [ 31.560036][ T1804] ? stack_trace_save+0x8c/0xc0 [ 31.564864][ T1804] ? find_first_zero_bit+0x94/0xb0 [ 31.569953][ T1804] __lock_acquire+0x1f74/0x3b60 [ 31.574787][ T1804] ? mark_held_locks+0xe0/0xe0 [ 31.579524][ T1804] ? mark_lock+0xbc/0x1160 [ 31.583920][ T1804] ? find_first_zero_bit+0x94/0xb0 [ 31.589018][ T1804] lock_acquire+0x130/0x340 [ 31.593554][ T1804] ? display_open+0x1f/0x220 [ 31.598127][ T1804] __mutex_lock+0x158/0x1360 [ 31.602702][ T1804] ? display_open+0x1f/0x220 [ 31.607312][ T1804] ? display_open+0x1f/0x220 [ 31.611882][ T1804] ? __lock_acquire+0x145e/0x3b60 [ 31.616918][ T1804] ? mutex_trylock+0x2c0/0x2c0 [ 31.621663][ T1804] ? lock_acquire+0x130/0x340 [ 31.626317][ T1804] ? usb_open+0x23/0x270 [ 31.630536][ T1804] ? down_read+0x115/0x420 [ 31.634934][ T1804] ? trace_event_raw_event_module_request+0x260/0x260 [ 31.641673][ T1804] ? display_open+0x1f/0x220 [ 31.646245][ T1804] display_open+0x1f/0x220 [ 31.650645][ T1804] ? usb_tx_callback+0x110/0x110 [ 31.655574][ T1804] usb_open+0x1df/0x270 [ 31.659705][ T1804] ? usb_devnode+0xa0/0xa0 [ 31.664098][ T1804] chrdev_open+0x219/0x5c0 [ 31.668509][ T1804] ? cdev_put.part.0+0x50/0x50 [ 31.673248][ T1804] do_dentry_open+0x494/0x1120 [ 31.677988][ T1804] ? cdev_put.part.0+0x50/0x50 [ 31.682727][ T1804] ? chmod_common+0x3c0/0x3c0 [ 31.687393][ T1804] ? inode_permission+0xbe/0x3a0 [ 31.692309][ T1804] path_openat+0x1222/0x32a0 [ 31.696876][ T1804] ? path_mountpoint.isra.0+0x370/0x370 [ 31.702401][ T1804] ? __lock_acquire+0x145e/0x3b60 [ 31.707403][ T1804] do_filp_open+0x192/0x260 [ 31.711892][ T1804] ? may_open_dev+0xf0/0xf0 [ 31.716374][ T1804] ? __alloc_fd+0x46d/0x600 [ 31.720876][ T1804] ? _raw_spin_unlock+0x1a/0x30 [ 31.725706][ T1804] ? __alloc_fd+0x46d/0x600 [ 31.730187][ T1804] do_sys_openat2+0x54c/0x740 [ 31.734845][ T1804] ? file_open_root+0x3d0/0x3d0 [ 31.739690][ T1804] ? up_read+0x1ab/0x750 [ 31.743910][ T1804] do_sys_open+0xc3/0x140 [ 31.748360][ T1804] ? filp_open+0x70/0x70 [ 31.752601][ T1804] ? trace_hardirqs_off_caller+0x55/0x200 [ 31.758321][ T1804] do_syscall_64+0xb6/0x5a0 [ 31.762818][ T1804] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 31.768695][ T1804] RIP: 0033:0x402540 [ 31.772573][ T1804] Code: 01 f0 ff ff 0f 83 40 0e 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 7f 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 14 0e 00 00 c3 48 83 ec 08 e8 7a 03 00 00 [ 31.792163][ T1804] RSP: 002b:00007ffe7b45b768 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 31.800597][ T1804] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000402540 [ 31.808595][ T1804] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00007ffe7b45b780 [ 31.816582][ T1804] RBP: 0000000000006e90 R08: 0000000000000000 R09: 000000000000000f [ 31.824577][ T1804] R10: 0000000000000064 R11: 0000000000000246 R12: 00000000004037e0 [ 31.832544][ T1804] R13: 0000000000403870 R14: 0000000000000000 R15: 0000000000000000 [ 31.840635][ T1804] imon:display_open: could not find interface for minor 0 [ 32.112275][ T95] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 32.322267][ T95] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 32.333202][ T95] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 32.342258][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.351143][ T95] usb 1-1: config 0 descriptor?? [ 32.394052][ T95] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input9 [ 32.612130][ T95] imon:send_packet: packet tx failed (-71) [ 32.632149][ T95] imon 1-1:0.0: panel buttons/knobs setup failed [ 32.638572][ T95] Registered IR keymap rc-imon-pad [ 32.652133][ T95] imon:send_packet: packet tx failed (-71) [ 32.672128][ T95] imon 1-1:0.0: remote input dev register failed [ 32.678503][ T95] imon 1-1:0.0: imon_init_intf0: rc device setup failed [ 32.772314][ T95] imon 1-1:0.0: unable to initialize intf0, err 0 [ 32.778752][ T95] imon:imon_probe: failed to initialize context! [ 32.785110][ T95] imon 1-1:0.0: unable to register, err -19 [ 32.794035][ T95] usb 1-1: USB disconnect, device number 4 [ 33.152092][ T95] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 33.362327][ T95] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 33.373253][ T95] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 33.382311][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.391157][ T95] usb 1-1: config 0 descriptor?? [ 33.444024][ T95] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input11 [ 33.672076][ T95] Registered IR keymap rc-imon-pad [ 33.892399][ T95] rc rc0: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 33.902932][ T95] input: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input12 [ 33.914777][ T95] imon 1-1:0.0: iMON device (15c2:0035, intf0) on usb<1:5> initialized executing program [ 34.073109][ T83] usb 1-1: USB disconnect, device number 5 [ 34.276099][ T1811] imon:display_open: could not find interface for minor 0 [ 34.652058][ T83] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 34.862107][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 34.873057][ T83] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 34.882101][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 34.891174][ T83] usb 1-1: config 0 descriptor?? [ 34.934119][ T83] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input13 [ 35.142120][ T83] imon:send_packet: packet tx failed (-71) [ 35.162140][ T83] imon 1-1:0.0: panel buttons/knobs setup failed [ 35.168591][ T83] Registered IR keymap rc-imon-pad [ 35.182132][ T83] imon:send_packet: packet tx failed (-71) [ 35.202173][ T83] imon 1-1:0.0: remote input dev register failed [ 35.208624][ T83] imon 1-1:0.0: imon_init_intf0: rc device setup failed [ 35.322203][ T83] imon 1-1:0.0: unable to initialize intf0, err 0 [ 35.328657][ T83] imon:imon_probe: failed to initialize context! [ 35.335037][ T83] imon 1-1:0.0: unable to register, err -19 [ 35.341906][ T83] usb 1-1: USB disconnect, device number 6 [ 35.692072][ T83] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 35.902140][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 35.913246][ T83] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 35.922293][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.931288][ T83] usb 1-1: config 0 descriptor?? [ 35.984406][ T83] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input15 [ 36.222097][ T83] Registered IR keymap rc-imon-pad [ 36.443039][ T83] rc rc0: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 36.453568][ T83] input: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input16 [ 36.467340][ T83] imon 1-1:0.0: iMON device (15c2:0035, intf0) on usb<1:7> initialized executing program [ 36.623013][ T95] usb 1-1: USB disconnect, device number 7 [ 36.833428][ T1818] imon:display_open: could not find interface for minor 0 [ 37.232107][ T95] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 37.452212][ T95] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 37.463169][ T95] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 37.472211][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.481253][ T95] usb 1-1: config 0 descriptor?? [ 37.524138][ T95] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input17 [ 37.732138][ T95] imon:send_packet: packet tx failed (-71) [ 37.752355][ T95] imon 1-1:0.0: panel buttons/knobs setup failed [ 37.758808][ T95] Registered IR keymap rc-imon-pad [ 37.772160][ T95] imon:send_packet: packet tx failed (-71) [ 37.792234][ T95] imon 1-1:0.0: remote input dev register failed [ 37.798632][ T95] imon 1-1:0.0: imon_init_intf0: rc device setup failed [ 37.912163][ T95] imon 1-1:0.0: unable to initialize intf0, err 0 [ 37.918631][ T95] imon:imon_probe: failed to initialize context! [ 37.925068][ T95] imon 1-1:0.0: unable to register, err -19 [ 37.931941][ T95] usb 1-1: USB disconnect, device number 8 [ 38.282069][ T95] usb 1-1: new high-speed USB device number 9 using dummy_hcd [ 38.492357][ T95] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 38.503272][ T95] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 38.512318][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 38.521346][ T95] usb 1-1: config 0 descriptor?? [ 38.564116][ T95] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input19 [ 38.792134][ T95] Registered IR keymap rc-imon-pad [ 39.012432][ T95] rc rc0: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0 [ 39.023050][ T95] input: iMON Remote (15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input20 [ 39.035067][ T95] imon 1-1:0.0: iMON device (15c2:0035, intf0) on usb<1:9> initialized executing program [ 39.193072][ T83] usb 1-1: USB disconnect, device number 9 [ 39.395950][ T1825] imon:display_open: could not find interface for minor 0 [ 39.772068][ T83] usb 1-1: new high-speed USB device number 10 using dummy_hcd [ 39.982180][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 39.993335][ T83] usb 1-1: New USB device found, idVendor=15c2, idProduct=0035, bcdDevice=d2.65 [ 40.002379][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 40.011438][ T83] usb 1-1: config 0 descriptor?? [ 40.054124][ T83] input: iMON Panel, Knob and Mouse(15c2:0035) as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/input/input21 [ 40.262122][ T83] imon:send_packet: packet tx failed (-71) [ 40.282143][ T83] imon 1-1:0.0: panel buttons/knobs setup failed [ 40.288544][ T83] Registered IR keymap rc-imon-pad [ 40.302145][ T83] imon:send_packet: packet tx failed (-71) [ 40.322158][ T83] imon 1-1:0.0: remote input dev register failed [ 40.328569][ T83] imon 1-1:0.0: imon_init_intf0: rc device setup failed [ 40.442145][ T83] imon 1-1:0.0: unable to initialize intf0, err 0 [ 40.448605][ T83] imon:imon_probe: failed to initialize context! [ 40.455043][ T83] imon 1-1:0.0: unable to register, err -19 [ 40.462028][ T83] usb 1-1: USB disconnect, device number 10 [ 40.812051][ T83] usb 1-1: new high-speed USB device number 11 using dummy_hcd