[info] Using makefile-style concurrent boot in runlevel 2. [ 15.920989][ 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 '10.128.1.56' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.486432][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.726379][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 25.846474][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 25.855609][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 25.865011][ T12] usb 1-1: config 0 descriptor?? [ 25.908815][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 26.128232][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 26.138724][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 26.147373][ T12] usb 1-1: media controller created [ 26.157216][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 26.182612][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 26.189438][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 26.199868][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 26.217850][ T12] [ 26.220229][ T12] ============================================ [ 26.226433][ T12] WARNING: possible recursive locking detected [ 26.232574][ T12] 5.5.0-rc1-syzkaller #0 Not tainted [ 26.237832][ T12] -------------------------------------------- [ 26.243962][ T12] kworker/0:1/12 is trying to acquire lock: [ 26.249862][ T12] ffff8881c6458208 (i2c_register_adapter){+.+.}, at: i2c_transfer+0x1d3/0x3b0 [ 26.258713][ T12] [ 26.258713][ T12] but task is already holding lock: [ 26.266164][ T12] ffff8881c4c465c0 (i2c_register_adapter){+.+.}, at: i2c_transfer+0x1d3/0x3b0 [ 26.275257][ T12] [ 26.275257][ T12] other info that might help us debug this: [ 26.283306][ T12] Possible unsafe locking scenario: [ 26.283306][ T12] [ 26.290994][ T12] CPU0 [ 26.294259][ T12] ---- [ 26.297874][ T12] lock(i2c_register_adapter); [ 26.302696][ T12] lock(i2c_register_adapter); [ 26.307519][ T12] [ 26.307519][ T12] *** DEADLOCK *** [ 26.307519][ T12] [ 26.315826][ T12] May be due to missing lock nesting notation [ 26.315826][ T12] [ 26.324215][ T12] 7 locks held by kworker/0:1/12: [ 26.329213][ T12] #0: ffff8881d8918528 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 26.339706][ T12] #1: ffff8881da227dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 26.350543][ T12] #2: ffff8881d51ab200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3860 [ 26.360589][ T12] #3: ffff8881cfd14200 (&dev->mutex){....}, at: __device_attach+0x7b/0x360 [ 26.369289][ T12] #4: ffff8881cfd15190 (&dev->mutex){....}, at: __device_attach+0x7b/0x360 [ 26.377970][ T12] #5: ffff8881c7b64180 (&dev->mutex){....}, at: __device_attach+0x7b/0x360 [ 26.386629][ T12] #6: ffff8881c4c465c0 (i2c_register_adapter){+.+.}, at: i2c_transfer+0x1d3/0x3b0 [ 26.397498][ T12] [ 26.397498][ T12] stack backtrace: [ 26.403403][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.5.0-rc1-syzkaller #0 [ 26.411542][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.421586][ T12] Workqueue: usb_hub_wq hub_event [ 26.426587][ T12] Call Trace: [ 26.429875][ T12] dump_stack+0xef/0x16e [ 26.434099][ T12] __lock_acquire.cold+0x114/0x288 [ 26.439220][ T12] ? bus_probe_device+0x1e4/0x290 [ 26.444759][ T12] ? device_add+0x1480/0x1c20 [ 26.449504][ T12] ? usb_set_configuration+0xe67/0x1740 [ 26.455996][ T12] ? generic_probe+0x9d/0xd5 [ 26.460590][ T12] ? mark_held_locks+0xe0/0xe0 [ 26.465330][ T12] ? __device_attach_driver+0x1c2/0x220 [ 26.470852][ T12] ? bus_for_each_drv+0x162/0x1e0 [ 26.475852][ T12] ? __device_attach+0x217/0x360 [ 26.480764][ T12] ? bus_probe_device+0x1e4/0x290 [ 26.485774][ T12] ? device_add+0x1480/0x1c20 [ 26.491065][ T12] ? usb_new_device.cold+0x6a4/0xe79 [ 26.496330][ T12] ? hub_event+0x1e59/0x3860 [ 26.500921][ T12] ? process_one_work+0x92b/0x1530 [ 26.506028][ T12] lock_acquire+0x127/0x320 [ 26.510518][ T12] ? i2c_transfer+0x1d3/0x3b0 [ 26.515182][ T12] rt_mutex_lock_nested+0x3e/0x60 [ 26.520187][ T12] ? i2c_transfer+0x1d3/0x3b0 [ 26.525201][ T12] i2c_transfer+0x1d3/0x3b0 [ 26.529696][ T12] tc90522_master_xfer.part.0+0x65c/0xbf0 [ 26.535396][ T12] ? tc90522_probe+0x3e0/0x3e0 [ 26.540759][ T12] ? mark_lock+0xbc/0x1160 [ 26.545354][ T12] ? mark_held_locks+0x9f/0xe0 [ 26.550112][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.555899][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.561180][ T12] ? rt_mutex_slowlock.constprop.0+0x23b/0x3f0 [ 26.567383][ T12] ? __rt_mutex_slowlock+0x290/0x290 [ 26.572645][ T12] ? mark_held_locks+0xe0/0xe0 [ 26.577387][ T12] ? ida_alloc_range+0x5a6/0x7f0 [ 26.582303][ T12] tc90522_master_xfer+0x35/0x4e [ 26.587218][ T12] __i2c_transfer+0x49d/0x1620 [ 26.592151][ T12] i2c_transfer+0x1e6/0x3b0 [ 26.596647][ T12] dvb_pll_attach+0x228/0x850 [ 26.601303][ T12] ? dvb_pll_remove+0x110/0x110 [ 26.606142][ T12] ? kernfs_create_link+0x1bc/0x230 [ 26.611325][ T12] ? dvb_pll_attach+0x850/0x850 [ 26.616458][ T12] dvb_pll_probe+0xfe/0x174 [ 26.621292][ T12] ? i2c_match_id.part.0+0xa8/0xe0 [ 26.626400][ T12] i2c_device_probe+0x74e/0xa40 [ 26.631244][ T12] ? i2c_match_id+0x50/0x50 [ 26.635748][ T12] really_probe+0x281/0x6d0 [ 26.640761][ T12] driver_probe_device+0x104/0x210 [ 26.645857][ T12] __device_attach_driver+0x1c2/0x220 [ 26.651583][ T12] ? driver_allows_async_probing+0x160/0x160 [ 26.657545][ T12] bus_for_each_drv+0x162/0x1e0 [ 26.662397][ T12] ? bus_rescan_devices+0x20/0x20 [ 26.668654][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.674474][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.679750][ T12] __device_attach+0x217/0x360 [ 26.684509][ T12] ? device_bind_driver+0xd0/0xd0 [ 26.689624][ T12] bus_probe_device+0x1e4/0x290 [ 26.694643][ T12] device_add+0x1480/0x1c20 [ 26.700038][ T12] ? lockdep_init_map+0x1b0/0x5e0 [ 26.706036][ T12] ? device_links_flush_sync_list+0x350/0x350 [ 26.712081][ T12] ? __init_waitqueue_head+0x31/0x90 [ 26.717374][ T12] i2c_new_client_device+0x57f/0x9b0 [ 26.722661][ T12] i2c_new_device+0x19/0x50 [ 26.727586][ T12] dvb_module_probe+0xf9/0x220 [ 26.732686][ T12] friio_tuner_attach+0x12b/0x1d0 [ 26.738463][ T12] ? friio_frontend_detach+0xb0/0xb0 [ 26.743742][ T12] ? friio_frontend_detach+0xb0/0xb0 [ 26.749381][ T12] dvb_usbv2_probe.cold+0x2550/0x25d7 [ 26.754737][ T12] ? dvb_usb_start_feed+0xb60/0xb60 [ 26.760288][ T12] ? rpm_callback+0x230/0x230 [ 26.765077][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.770503][ T12] ? __pm_runtime_resume+0x111/0x180 [ 26.776246][ T12] usb_probe_interface+0x305/0x7a0 [ 26.781369][ T12] ? usb_probe_device+0x100/0x100 [ 26.786886][ T12] really_probe+0x281/0x6d0 [ 26.792177][ T12] driver_probe_device+0x104/0x210 [ 26.797569][ T12] __device_attach_driver+0x1c2/0x220 [ 26.803271][ T12] ? driver_allows_async_probing+0x160/0x160 [ 26.809492][ T12] bus_for_each_drv+0x162/0x1e0 [ 26.814671][ T12] ? bus_rescan_devices+0x20/0x20 [ 26.820925][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.826726][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.831988][ T12] __device_attach+0x217/0x360 [ 26.836730][ T12] ? device_bind_driver+0xd0/0xd0 [ 26.842463][ T12] bus_probe_device+0x1e4/0x290 [ 26.848416][ T12] device_add+0x1480/0x1c20 [ 26.853879][ T12] ? wait_for_completion+0x3c0/0x3c0 [ 26.859139][ T12] ? device_links_flush_sync_list+0x350/0x350 [ 26.865462][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.871655][ T12] usb_set_configuration+0xe67/0x1740 [ 26.877037][ T12] generic_probe+0x9d/0xd5 [ 26.881444][ T12] usb_probe_device+0x99/0x100 [ 26.886477][ T12] ? usb_suspend+0x620/0x620 [ 26.891309][ T12] really_probe+0x281/0x6d0 [ 26.896674][ T12] driver_probe_device+0x104/0x210 [ 26.901896][ T12] __device_attach_driver+0x1c2/0x220 [ 26.907371][ T12] ? driver_allows_async_probing+0x160/0x160 [ 26.914166][ T12] bus_for_each_drv+0x162/0x1e0 [ 26.919193][ T12] ? bus_rescan_devices+0x20/0x20 [ 26.924202][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.930001][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 26.935534][ T12] __device_attach+0x217/0x360 [ 26.940460][ T12] ? device_bind_driver+0xd0/0xd0 [ 26.945822][ T12] bus_probe_device+0x1e4/0x290 [ 26.950758][ T12] device_add+0x1480/0x1c20 [ 26.955602][ T12] ? device_links_flush_sync_list+0x350/0x350 [ 26.961746][ T12] usb_new_device.cold+0x6a4/0xe79 [ 26.967411][ T12] hub_event+0x1e59/0x3860 [ 26.973407][ T12] ? hub_port_debounce+0x260/0x260 [ 26.978526][ T12] ? find_held_lock+0x2d/0x110 [ 26.983356][ T12] ? mark_held_locks+0xe0/0xe0 [ 26.988280][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.994572][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.999940][ T12] process_one_work+0x92b/0x1530 [ 27.005220][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 27.010981][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 27.016519][ T12] worker_thread+0x96/0xe20 [ 27.021936][ T12] ? process_one_work+0x1530/0x1530 [ 27.027144][ T12] kthread+0x318/0x420 [ 27.031222][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 27.036834][ T12] ret_from_fork+0x24/0x30 [ 27.076593][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 27.094010][ T12] usb 1-1: USB disconnect, device number 2 [ 27.446356][ T12] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 27.686329][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 27.806503][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 27.816838][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.825638][ T12] usb 1-1: config 0 descriptor?? [ 27.867797][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 28.077068][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 28.088158][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 28.099371][ T12] usb 1-1: media controller created [ 28.107604][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 28.127232][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 28.133713][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 28.143911][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 28.176532][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 28.193883][ T12] usb 1-1: USB disconnect, device number 3 [ 28.546349][ T12] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 28.786359][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 28.906428][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 28.916073][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.924753][ T12] usb 1-1: config 0 descriptor?? [ 28.967723][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 29.176937][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 29.187629][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 29.195889][ T12] usb 1-1: media controller created [ 29.204057][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 29.223627][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 29.229966][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 29.239646][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 29.276498][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 29.294263][ T12] usb 1-1: USB disconnect, device number 4 [ 29.646381][ T12] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 29.886382][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 30.006476][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 30.015656][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.024525][ T12] usb 1-1: config 0 descriptor?? [ 30.067685][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 30.276952][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 30.287469][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 30.295817][ T12] usb 1-1: media controller created [ 30.303843][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 30.322774][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 30.329442][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 30.339212][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 30.366561][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 30.383521][ T12] usb 1-1: USB disconnect, device number 5 [ 30.746348][ T12] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 30.986350][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 31.106421][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 31.115830][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.124584][ T12] usb 1-1: config 0 descriptor?? [ 31.167793][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 31.377020][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 31.387413][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 31.395964][ T12] usb 1-1: media controller created [ 31.404210][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 31.424058][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 31.430499][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 31.442044][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 31.486606][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 31.504279][ T12] usb 1-1: USB disconnect, device number 6 [ 31.856372][ T12] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 32.096373][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 32.216456][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 32.225923][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.234670][ T12] usb 1-1: config 0 descriptor?? [ 32.277656][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 32.486956][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 32.497655][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 32.505917][ T12] usb 1-1: media controller created [ 32.514089][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 32.533318][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 32.540057][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 32.549587][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 32.576660][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 32.595066][ T12] usb 1-1: USB disconnect, device number 7 [ 32.946406][ T12] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 33.186358][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 33.306457][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 33.315531][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.324294][ T12] usb 1-1: config 0 descriptor?? [ 33.367683][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 33.576970][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 33.587477][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 33.596844][ T12] usb 1-1: media controller created [ 33.604838][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 33.624157][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 33.630847][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 33.640611][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 33.666656][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 33.683111][ T12] usb 1-1: USB disconnect, device number 8 [ 34.036402][ T12] usb 1-1: new high-speed USB device number 9 using dummy_hcd [ 34.276343][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 34.396410][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 34.405582][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 34.414917][ T12] usb 1-1: config 0 descriptor?? [ 34.467676][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 34.676973][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 34.687328][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 34.695571][ T12] usb 1-1: media controller created [ 34.703616][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 34.722453][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 34.728735][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 34.738439][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 34.766625][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 34.783413][ T12] usb 1-1: USB disconnect, device number 9 [ 35.136324][ T12] usb 1-1: new high-speed USB device number 10 using dummy_hcd [ 35.376322][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 35.496438][ T12] usb 1-1: New USB device found, idVendor=7a69, idProduct=0001, bcdDevice=19.36 [ 35.505774][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.514628][ T12] usb 1-1: config 0 descriptor?? [ 35.567541][ T12] usb 1-1: dvb_usb_v2: found a '774 Friio White ISDB-T USB2.0' in warm state executing program [ 35.776908][ T12] usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer [ 35.787649][ T12] dvbdev: DVB: registering new adapter (774 Friio White ISDB-T USB2.0) [ 35.796041][ T12] usb 1-1: media controller created [ 35.804062][ T12] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered. [ 35.822498][ T12] tc90522 0-0018: Toshiba TC90522 attached. [ 35.828987][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (Toshiba TC90522 ISDB-T module)... [ 35.838861][ T12] dvbdev: dvb_create_media_entity: media entity 'Toshiba TC90522 ISDB-T module' registered. [ 35.866448][ T12] dvb_pll: probe of 1-0060 failed with error -12 [ 35.883398][ T12] usb 1-1: USB disconnect, device number 10