[info] Using makefile-style concurrent boot in runlevel 2. [ 14.561721][ 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 '10.128.1.36' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 775.487575][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 775.487582][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 775.507391][ T102] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 775.508246][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 775.514981][ T1742] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 775.522511][ T1741] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 775.737371][ T83] usb 1-1: Using ep0 maxpacket: 16 [ 775.737459][ T12] usb 6-1: Using ep0 maxpacket: 16 [ 775.767406][ T102] usb 2-1: Using ep0 maxpacket: 16 [ 775.777351][ T1742] usb 3-1: Using ep0 maxpacket: 16 [ 775.777702][ T17] usb 4-1: Using ep0 maxpacket: 16 [ 775.787738][ T1741] usb 5-1: Using ep0 maxpacket: 16 [ 775.867708][ T12] usb 6-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.877859][ T12] usb 6-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.886896][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 775.887551][ T83] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.895382][ T102] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.904905][ T83] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.904919][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 775.912107][ T83] usb 1-1: config 0 descriptor?? [ 775.914779][ T102] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.914795][ T102] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 775.947713][ T1731] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 775.954364][ T1742] usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.961945][ T1741] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.971542][ T1742] usb 3-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.971557][ T1742] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 775.974531][ T102] usb 2-1: config 0 descriptor?? [ 775.981466][ T1741] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.981480][ T1741] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 775.981553][ T17] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 775.990917][ T1742] usb 3-1: config 0 descriptor?? [ 775.998579][ T17] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 775.998593][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 776.003795][ T12] usb 6-1: config 0 descriptor?? [ 776.052541][ T1741] usb 5-1: config 0 descriptor?? [ 776.064478][ T17] usb 4-1: config 0 descriptor?? [ 776.067495][ T1736] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 776.071742][ T1740] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 776.079687][ T1738] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 776.096521][ T1742] chaoskey 3-1:0.0: Unable to register with hwrng [ 776.097487][ T1739] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 776.103778][ T1737] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 776.111052][ T1750] hwrng: no data available [ 776.123736][ T12] chaoskey 6-1:0.0: Unable to register with hwrng [ 776.131231][ T102] chaoskey 2-1:0.0: Unable to register with hwrng [ 776.153052][ T1741] chaoskey 5-1:0.0: Unable to register with hwrng [ 776.160534][ T17] chaoskey 4-1:0.0: Unable to register with hwrng executing program executing program [ 776.258762][ T102] usb 1-1: USB disconnect, device number 2 [ 776.297456][ T12] usb 6-1: USB disconnect, device number 2 executing program executing program executing program executing program [ 776.330447][ T17] usb 2-1: USB disconnect, device number 2 [ 776.343510][ T1742] usb 3-1: USB disconnect, device number 2 [ 776.361984][ T1741] usb 5-1: USB disconnect, device number 2 [ 776.368314][ T1745] usb 4-1: USB disconnect, device number 2 [ 776.657396][ T12] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 776.697364][ T17] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 776.717381][ T1742] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 776.727346][ T1741] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 776.737399][ T1745] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 776.897374][ T12] usb 6-1: Using ep0 maxpacket: 16 [ 776.947406][ T17] usb 2-1: Using ep0 maxpacket: 16 [ 776.957618][ T1742] usb 3-1: Using ep0 maxpacket: 16 [ 776.977382][ T1741] usb 5-1: Using ep0 maxpacket: 16 [ 776.977548][ T1745] usb 4-1: Using ep0 maxpacket: 16 [ 777.027485][ T12] usb 6-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 777.037818][ T12] usb 6-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 777.046840][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 777.056130][ T12] usb 6-1: config 0 descriptor?? [ 777.077527][ T1758] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 777.077566][ T17] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 777.094877][ T17] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 777.104379][ T17] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 777.107533][ T1742] usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 777.112743][ T1741] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 777.122530][ T1742] usb 3-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 777.132303][ T1741] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 777.141339][ T1742] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 777.150348][ T1741] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 777.170187][ T1742] usb 3-1: config 0 descriptor?? [ 777.175695][ T1741] usb 5-1: config 0 descriptor?? [ 777.181061][ T17] usb 2-1: config 0 descriptor?? [ 777.188626][ T1760] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 777.197467][ T1761] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 777.197487][ T1759] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 777.212473][ T1745] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 777.222513][ T1745] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 777.231685][ T1745] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 777.240123][ T1741] chaoskey 5-1:0.0: Unable to register with hwrng [ 777.242072][ T1742] chaoskey 3-1:0.0: Unable to register with hwrng [ 777.263001][ T1745] usb 4-1: config 0 descriptor?? [ 777.279212][ T17] chaoskey 2-1:0.0: Unable to register with hwrng [ 777.287528][ T1763] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 777.309497][ T1745] chaoskey 4-1:0.0: Unable to register with hwrng executing program [ 777.361941][ T1745] usb 6-1: USB disconnect, device number 3 executing program executing program [ 777.413531][ T17] usb 3-1: USB disconnect, device number 3 [ 777.426268][ T1741] usb 5-1: USB disconnect, device number 3 executing program executing program [ 777.478748][ T1742] usb 2-1: USB disconnect, device number 3 [ 777.509044][ T83] usb 4-1: USB disconnect, device number 3 [ 777.767372][ T17] usb 3-1: new high-speed USB device number 4 using dummy_hcd [ 777.827349][ T1741] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 777.837462][ T1742] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 777.867438][ T83] usb 4-1: new high-speed USB device number 4 using dummy_hcd [ 778.007336][ T17] usb 3-1: Using ep0 maxpacket: 16 [ 778.067400][ T1741] usb 5-1: Using ep0 maxpacket: 16 [ 778.097362][ T1742] usb 2-1: Using ep0 maxpacket: 16 [ 778.107435][ T83] usb 4-1: Using ep0 maxpacket: 16 [ 778.127598][ T17] usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 778.139272][ T17] usb 3-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 778.148560][ T17] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 778.158731][ T17] usb 3-1: config 0 descriptor?? [ 778.177605][ T1770] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 778.197545][ T1741] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 778.207505][ T1741] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 778.216527][ T1741] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 778.228230][ T1741] usb 5-1: config 0 descriptor?? [ 778.228735][ T1742] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 778.243122][ T1742] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 778.252189][ T1742] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 778.257432][ T1771] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 778.261054][ T1742] usb 2-1: config 0 descriptor?? [ 778.269247][ T83] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 778.282487][ T83] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 778.288898][ T1772] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 778.291564][ T83] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 778.309183][ T1741] chaoskey 5-1:0.0: Unable to register with hwrng [ 778.315669][ T1742] chaoskey 2-1:0.0: Unable to register with hwrng [ 778.322689][ T83] usb 4-1: config 0 descriptor?? [ 778.347421][ T1773] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 778.369680][ T83] chaoskey 4-1:0.0: Unable to register with hwrng executing program [ 778.398770][ T1742] usb 3-1: USB disconnect, device number 4 executing program executing program [ 778.508207][ T12] usb 5-1: USB disconnect, device number 4 [ 778.527184][ T1762] usb 2-1: USB disconnect, device number 4 executing program [ 778.570681][ T83] usb 4-1: USB disconnect, device number 4 [ 778.857355][ T12] usb 5-1: new high-speed USB device number 5 using dummy_hcd [ 778.877437][ T1762] usb 2-1: new high-speed USB device number 5 using dummy_hcd [ 778.937337][ T83] usb 4-1: new high-speed USB device number 5 using dummy_hcd [ 779.097364][ T12] usb 5-1: Using ep0 maxpacket: 16 [ 779.117430][ T1762] usb 2-1: Using ep0 maxpacket: 16 [ 779.187369][ T83] usb 4-1: Using ep0 maxpacket: 16 [ 779.217471][ T12] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 779.227888][ T12] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 779.236914][ T12] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 779.245504][ T1762] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 779.255519][ T1762] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 779.264768][ T1762] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 779.273802][ T12] usb 5-1: config 0 descriptor?? [ 779.279992][ T1762] usb 2-1: config 0 descriptor?? [ 779.297454][ T1779] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 779.297459][ T1781] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 779.312524][ T83] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 779.322608][ T83] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 779.332126][ T83] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 779.341145][ T12] chaoskey 5-1:0.0: Unable to register with hwrng [ 779.343787][ T83] usb 4-1: config 0 descriptor?? [ 779.387498][ T1782] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 779.410988][ T83] chaoskey 4-1:0.0: Unable to register with hwrng executing program executing program [ 779.518743][ T83] usb 2-1: USB disconnect, device number 5 [ 779.540300][ T12] usb 5-1: USB disconnect, device number 5 executing program [ 779.612270][ T1762] usb 4-1: USB disconnect, device number 5 [ 779.907356][ T12] usb 5-1: new high-speed USB device number 6 using dummy_hcd [ 779.967352][ T1762] usb 4-1: new high-speed USB device number 6 using dummy_hcd [ 780.147355][ T12] usb 5-1: Using ep0 maxpacket: 16 [ 780.207492][ T1762] usb 4-1: Using ep0 maxpacket: 16 [ 780.267519][ T12] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 780.277732][ T12] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 780.286787][ T12] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 780.296261][ T12] usb 5-1: config 0 descriptor?? [ 780.317488][ T1800] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 780.327521][ T1762] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 780.337721][ T1762] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 780.346861][ T1762] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 780.363001][ T1762] usb 4-1: config 0 descriptor?? [ 780.387812][ T1802] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 780.409953][ T1762] chaoskey 4-1:0.0: Unable to register with hwrng executing program [ 780.560061][ T1762] usb 5-1: USB disconnect, device number 6 executing program [ 780.622485][ T12] usb 4-1: USB disconnect, device number 6 [ 781.007425][ T12] usb 4-1: new high-speed USB device number 7 using dummy_hcd executing program [ 781.267376][ T12] usb 4-1: Using ep0 maxpacket: 16 [ 781.388452][ T12] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 781.398598][ T12] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 781.407862][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 781.421413][ T12] usb 4-1: config 0 descriptor?? [ 781.437416][ T1806] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 executing program [ 781.670667][ T12] usb 4-1: USB disconnect, device number 7 executing program executing program executing program executing program executing program executing program [ 786.657369][ T102] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 786.897348][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 787.017491][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 787.028248][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 787.037521][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 787.046240][ T102] usb 1-1: config 0 descriptor?? [ 787.067460][ T2131] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 787.137658][ T2134] hwrng: no data available executing program [ 787.288730][ T1741] usb 1-1: USB disconnect, device number 3 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 797.707361][ T1741] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 797.947368][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 798.067422][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 798.077442][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 798.086587][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 798.095504][ T1741] usb 1-1: config 0 descriptor?? [ 798.117445][ T2147] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 798.177418][ T2150] hwrng: no data available executing program [ 798.338461][ T1741] usb 1-1: USB disconnect, device number 4 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 808.737349][ T1741] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 808.977335][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 809.097500][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 809.107636][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 809.116703][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 809.125851][ T1741] usb 1-1: config 0 descriptor?? [ 809.147435][ T2163] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 809.217648][ T2166] hwrng: no data available executing program [ 809.368519][ T102] usb 1-1: USB disconnect, device number 5 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 820.107384][ T102] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 820.347329][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 820.467512][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 820.477443][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 820.486474][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 820.495363][ T102] usb 1-1: config 0 descriptor?? [ 820.517419][ T2179] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 executing program [ 820.577591][ T2182] hwrng: no data available executing program [ 820.740523][ T102] usb 1-1: USB disconnect, device number 6 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 831.127400][ T102] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 831.367333][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 831.487453][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 831.497356][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 831.506377][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 831.515752][ T102] usb 1-1: config 0 descriptor?? [ 831.537405][ T2196] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 831.597653][ T2198] hwrng: no data available executing program executing program [ 831.758622][ T1741] usb 1-1: USB disconnect, device number 7 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 842.497344][ T1741] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 842.737436][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 842.857449][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 842.867396][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 842.876426][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 842.885568][ T1741] usb 1-1: config 0 descriptor?? [ 842.907463][ T2212] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 842.977445][ T2215] hwrng: no data available executing program [ 843.128661][ T102] usb 1-1: USB disconnect, device number 8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 853.537375][ T102] usb 1-1: new high-speed USB device number 9 using dummy_hcd [ 853.777325][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 853.897425][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 853.907373][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 853.916387][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 853.925857][ T102] usb 1-1: config 0 descriptor?? [ 853.947454][ T2228] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 854.017435][ T2231] hwrng: no data available executing program [ 854.168997][ T1741] usb 1-1: USB disconnect, device number 9 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 864.897403][ T1741] usb 1-1: new high-speed USB device number 10 using dummy_hcd [ 865.137350][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 865.257486][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 865.267438][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 865.276545][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 865.285615][ T1741] usb 1-1: config 0 descriptor?? [ 865.307418][ T2244] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 865.367538][ T2247] hwrng: no data available executing program [ 865.530408][ T1741] usb 1-1: USB disconnect, device number 10 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 875.947331][ T1741] usb 1-1: new high-speed USB device number 11 using dummy_hcd [ 876.187335][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 876.307459][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 876.317608][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 876.326753][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 876.335715][ T1741] usb 1-1: config 0 descriptor?? [ 876.357434][ T2260] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 876.427481][ T2263] hwrng: no data available executing program [ 876.578532][ T102] usb 1-1: USB disconnect, device number 11 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 887.297357][ T102] usb 1-1: new high-speed USB device number 12 using dummy_hcd executing program [ 887.547747][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 887.667466][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 887.677874][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 887.687206][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 887.700458][ T102] usb 1-1: config 0 descriptor?? [ 887.717455][ T2276] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 887.787461][ T2280] hwrng: no data available executing program [ 887.938943][ T1741] usb 1-1: USB disconnect, device number 12 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 898.327336][ T1741] usb 1-1: new high-speed USB device number 13 using dummy_hcd executing program [ 898.567332][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 898.687421][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 898.697354][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 898.710303][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 898.719434][ T1741] usb 1-1: config 0 descriptor?? [ 898.737465][ T2293] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 898.807460][ T2296] hwrng: no data available executing program [ 898.960544][ T1741] usb 1-1: USB disconnect, device number 13 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 909.697369][ T1741] usb 1-1: new high-speed USB device number 14 using dummy_hcd [ 909.937361][ T1741] usb 1-1: Using ep0 maxpacket: 16 [ 910.057421][ T1741] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 910.067467][ T1741] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 910.076502][ T1741] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 910.085780][ T1741] usb 1-1: config 0 descriptor?? [ 910.107418][ T2309] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 910.177414][ T2312] hwrng: no data available executing program [ 910.328666][ T102] usb 1-1: USB disconnect, device number 14 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 920.737426][ T102] usb 1-1: new high-speed USB device number 15 using dummy_hcd [ 920.977879][ T102] usb 1-1: Using ep0 maxpacket: 16 [ 921.097423][ T102] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 73 [ 921.107578][ T102] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=1a.d7 [ 921.116690][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 921.126540][ T102] usb 1-1: config 0 descriptor?? [ 921.147411][ T2325] raw: raw_ioctl_ep_enable: fail, usb_ep_enable returned -22 [ 921.217407][ T2328] hwrng: no data available executing program [ 921.368776][ T1741] usb 1-1: USB disconnect, device number 15 executing program executing program executing program [ 924.067378][ T23] INFO: task kworker/1:2:83 blocked for more than 143 seconds. [ 924.075145][ T23] Not tainted 5.4.0-rc6+ #0 [ 924.080233][ T23] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 924.088951][ T23] kworker/1:2 D25608 83 2 0x80004000 [ 924.095440][ T23] Workqueue: usb_hub_wq hub_event [ 924.100761][ T23] Call Trace: [ 924.104119][ T23] ? __schedule+0x898/0x1ca0 [ 924.108750][ T23] ? __sched_text_start+0x8/0x8 [ 924.113643][ T23] ? lockdep_hardirqs_on+0x382/0x580 [ 924.118977][ T23] schedule+0xca/0x250 [ 924.123094][ T23] schedule_timeout+0x682/0xb20 [ 924.127988][ T23] ? find_held_lock+0x2d/0x110 [ 924.132789][ T23] ? usleep_range+0x160/0x160 [ 924.137586][ T23] ? mark_lock+0xbc/0x1160 [ 924.142004][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.147020][ T23] ? mark_held_locks+0x9f/0xe0 [ 924.151817][ T23] ? _raw_spin_unlock_irq+0x24/0x30 [ 924.157019][ T23] wait_for_completion+0x26f/0x3c0 [ 924.162290][ T23] ? wait_for_completion_interruptible+0x420/0x420 [ 924.168832][ T23] ? wake_up_q+0xf0/0xf0 [ 924.173064][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.178638][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.184211][ T23] kthread_stop+0x10c/0x610 [ 924.188780][ T23] hwrng_unregister+0x190/0x210 [ 924.193864][ T23] chaoskey_disconnect+0x1b2/0x200 [ 924.199077][ T23] usb_unbind_interface+0x1bd/0x8a0 [ 924.204290][ T23] ? usb_autoresume_device+0x60/0x60 [ 924.209758][ T23] device_release_driver_internal+0x42f/0x500 [ 924.215870][ T23] bus_remove_device+0x2dc/0x4a0 [ 924.220874][ T23] device_del+0x420/0xb20 [ 924.225303][ T23] ? __device_link_del+0x2f0/0x2f0 [ 924.230473][ T23] ? usb_remove_ep_devs+0x3e/0x80 [ 924.235496][ T23] ? remove_intf_ep_devs+0x13f/0x1d0 [ 924.240897][ T23] usb_disable_device+0x211/0x690 [ 924.245916][ T23] usb_disconnect+0x284/0x8d0 [ 924.250622][ T23] hub_event+0x16f2/0x3800 [ 924.255035][ T23] ? hub_port_debounce+0x260/0x260 [ 924.260191][ T23] ? find_held_lock+0x2d/0x110 [ 924.264969][ T23] ? mark_held_locks+0xe0/0xe0 [ 924.269789][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.275347][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.280691][ T23] process_one_work+0x92b/0x1530 [ 924.285638][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 924.291192][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.296232][ T23] worker_thread+0x96/0xe20 [ 924.300872][ T23] ? process_one_work+0x1530/0x1530 [ 924.306076][ T23] kthread+0x318/0x420 [ 924.310171][ T23] ? kthread_create_on_node+0xf0/0xf0 [ 924.315547][ T23] ret_from_fork+0x24/0x30 [ 924.320590][ T23] INFO: task kworker/0:0:1742 blocked for more than 143 seconds. [ 924.328346][ T23] Not tainted 5.4.0-rc6+ #0 [ 924.333366][ T23] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 924.342494][ T23] kworker/0:0 D26016 1742 2 0x80004000 [ 924.348874][ T23] Workqueue: usb_hub_wq hub_event [ 924.353880][ T23] Call Trace: [ 924.357154][ T23] ? __schedule+0x898/0x1ca0 [ 924.361769][ T23] ? __sched_text_start+0x8/0x8 [ 924.366622][ T23] ? lockdep_hardirqs_on+0x382/0x580 [ 924.372046][ T23] schedule+0xca/0x250 [ 924.376124][ T23] schedule_timeout+0x682/0xb20 [ 924.381030][ T23] ? find_held_lock+0x2d/0x110 [ 924.386842][ T23] ? usleep_range+0x160/0x160 [ 924.391557][ T23] ? mark_lock+0xbc/0x1160 [ 924.395975][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.401027][ T23] ? mark_held_locks+0x9f/0xe0 [ 924.405792][ T23] ? _raw_spin_unlock_irq+0x24/0x30 [ 924.411123][ T23] wait_for_completion+0x26f/0x3c0 [ 924.416244][ T23] ? wait_for_completion_interruptible+0x420/0x420 [ 924.422790][ T23] ? wake_up_q+0xf0/0xf0 [ 924.427042][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.432640][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.437963][ T23] kthread_stop+0x10c/0x610 [ 924.442472][ T23] hwrng_unregister+0x190/0x210 [ 924.447381][ T23] chaoskey_disconnect+0x1b2/0x200 [ 924.452503][ T23] usb_unbind_interface+0x1bd/0x8a0 [ 924.457738][ T23] ? usb_autoresume_device+0x60/0x60 [ 924.463020][ T23] device_release_driver_internal+0x42f/0x500 [ 924.469143][ T23] bus_remove_device+0x2dc/0x4a0 [ 924.474077][ T23] device_del+0x420/0xb20 [ 924.478967][ T23] ? __device_link_del+0x2f0/0x2f0 [ 924.484079][ T23] ? usb_remove_ep_devs+0x3e/0x80 [ 924.489133][ T23] ? remove_intf_ep_devs+0x13f/0x1d0 [ 924.494528][ T23] usb_disable_device+0x211/0x690 [ 924.499590][ T23] usb_disconnect+0x284/0x8d0 [ 924.504267][ T23] hub_event+0x16f2/0x3800 [ 924.508724][ T23] ? hub_port_debounce+0x260/0x260 [ 924.513830][ T23] ? find_held_lock+0x2d/0x110 [ 924.518616][ T23] ? mark_held_locks+0xe0/0xe0 [ 924.523377][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.529308][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.534600][ T23] process_one_work+0x92b/0x1530 [ 924.539574][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 924.544980][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.550037][ T23] worker_thread+0x96/0xe20 [ 924.554570][ T23] ? process_one_work+0x1530/0x1530 [ 924.559831][ T23] kthread+0x318/0x420 [ 924.563906][ T23] ? kthread_create_on_node+0xf0/0xf0 executing program [ 924.569340][ T23] ret_from_fork+0x24/0x30 [ 924.574478][ T23] INFO: task kworker/0:4:1745 blocked for more than 143 seconds. [ 924.582309][ T23] Not tainted 5.4.0-rc6+ #0 [ 924.587357][ T23] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 924.596082][ T23] kworker/0:4 D25760 1745 2 0x80004000 [ 924.602686][ T23] Workqueue: usb_hub_wq hub_event [ 924.607741][ T23] Call Trace: [ 924.611206][ T23] ? __schedule+0x898/0x1ca0 [ 924.615801][ T23] ? __sched_text_start+0x8/0x8 [ 924.620697][ T23] ? lockdep_hardirqs_on+0x382/0x580 [ 924.625985][ T23] schedule+0xca/0x250 [ 924.630127][ T23] schedule_timeout+0x682/0xb20 [ 924.635436][ T23] ? find_held_lock+0x2d/0x110 [ 924.640253][ T23] ? usleep_range+0x160/0x160 [ 924.644941][ T23] ? mark_lock+0xbc/0x1160 [ 924.649389][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.654862][ T23] ? mark_held_locks+0x9f/0xe0 [ 924.659682][ T23] ? _raw_spin_unlock_irq+0x24/0x30 [ 924.664895][ T23] wait_for_completion+0x26f/0x3c0 [ 924.670188][ T23] ? wait_for_completion_interruptible+0x420/0x420 [ 924.677008][ T23] ? wake_up_q+0xf0/0xf0 [ 924.681292][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.686950][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.692346][ T23] kthread_stop+0x10c/0x610 [ 924.696893][ T23] hwrng_unregister+0x190/0x210 [ 924.701835][ T23] chaoskey_disconnect+0x1b2/0x200 [ 924.706966][ T23] usb_unbind_interface+0x1bd/0x8a0 [ 924.712260][ T23] ? usb_autoresume_device+0x60/0x60 [ 924.717599][ T23] device_release_driver_internal+0x42f/0x500 [ 924.723669][ T23] bus_remove_device+0x2dc/0x4a0 [ 924.728655][ T23] device_del+0x420/0xb20 [ 924.732987][ T23] ? __device_link_del+0x2f0/0x2f0 [ 924.738922][ T23] ? usb_remove_ep_devs+0x3e/0x80 [ 924.744058][ T23] ? remove_intf_ep_devs+0x13f/0x1d0 [ 924.749378][ T23] usb_disable_device+0x211/0x690 [ 924.754402][ T23] usb_disconnect+0x284/0x8d0 [ 924.759208][ T23] hub_event+0x16f2/0x3800 [ 924.763637][ T23] ? hub_port_debounce+0x260/0x260 [ 924.768796][ T23] ? find_held_lock+0x2d/0x110 [ 924.773564][ T23] ? mark_held_locks+0xe0/0xe0 [ 924.778468][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.784028][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.789356][ T23] process_one_work+0x92b/0x1530 [ 924.794383][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 924.799844][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.804871][ T23] worker_thread+0x96/0xe20 [ 924.809413][ T23] ? process_one_work+0x1530/0x1530 [ 924.814668][ T23] kthread+0x318/0x420 [ 924.818773][ T23] ? kthread_create_on_node+0xf0/0xf0 [ 924.824426][ T23] ret_from_fork+0x24/0x30 [ 924.829213][ T23] INFO: task kworker/0:5:1762 blocked for more than 144 seconds. [ 924.837170][ T23] Not tainted 5.4.0-rc6+ #0 [ 924.842347][ T23] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 924.851045][ T23] kworker/0:5 D25608 1762 2 0x80004000 [ 924.857439][ T23] Workqueue: usb_hub_wq hub_event [ 924.862473][ T23] Call Trace: [ 924.865752][ T23] ? __schedule+0x898/0x1ca0 [ 924.870458][ T23] ? __sched_text_start+0x8/0x8 [ 924.875311][ T23] ? lockdep_hardirqs_on+0x382/0x580 [ 924.880900][ T23] schedule+0xca/0x250 [ 924.884964][ T23] schedule_timeout+0x682/0xb20 [ 924.889852][ T23] ? find_held_lock+0x2d/0x110 [ 924.894620][ T23] ? usleep_range+0x160/0x160 [ 924.900528][ T23] ? mark_lock+0xbc/0x1160 [ 924.904942][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 924.909997][ T23] ? mark_held_locks+0x9f/0xe0 [ 924.914873][ T23] ? _raw_spin_unlock_irq+0x24/0x30 [ 924.920146][ T23] wait_for_completion+0x26f/0x3c0 [ 924.925271][ T23] ? wait_for_completion_interruptible+0x420/0x420 [ 924.931813][ T23] ? wake_up_q+0xf0/0xf0 [ 924.936056][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 924.941632][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 924.946912][ T23] kthread_stop+0x10c/0x610 [ 924.951479][ T23] hwrng_unregister+0x190/0x210 [ 924.956340][ T23] chaoskey_disconnect+0x1b2/0x200 [ 924.961478][ T23] usb_unbind_interface+0x1bd/0x8a0 [ 924.966758][ T23] ? usb_autoresume_device+0x60/0x60 [ 924.972069][ T23] device_release_driver_internal+0x42f/0x500 [ 924.978271][ T23] bus_remove_device+0x2dc/0x4a0 [ 924.983208][ T23] device_del+0x420/0xb20 [ 924.987644][ T23] ? __device_link_del+0x2f0/0x2f0 [ 924.992756][ T23] ? usb_remove_ep_devs+0x3e/0x80 [ 924.997801][ T23] ? remove_intf_ep_devs+0x13f/0x1d0 [ 925.003094][ T23] usb_disable_device+0x211/0x690 [ 925.008149][ T23] usb_disconnect+0x284/0x8d0 [ 925.012823][ T23] hub_event+0x16f2/0x3800 [ 925.017238][ T23] ? hub_port_debounce+0x260/0x260 [ 925.022405][ T23] ? find_held_lock+0x2d/0x110 [ 925.027169][ T23] ? mark_held_locks+0xe0/0xe0 [ 925.032312][ T23] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 925.037885][ T23] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 925.043158][ T23] process_one_work+0x92b/0x1530 [ 925.048113][ T23] ? pwq_dec_nr_in_flight+0x310/0x310 [ 925.053485][ T23] ? do_raw_spin_lock+0x11a/0x280 [ 925.058542][ T23] worker_thread+0x96/0xe20 [ 925.063049][ T23] ? process_one_work+0x1530/0x1530 [ 925.068280][ T23] kthread+0x318/0x420 [ 925.072346][ T23] ? kthread_create_on_node+0xf0/0xf0 [ 925.077738][ T23] ret_from_fork+0x24/0x30 [ 925.082183][ T23] [ 925.082183][ T23] Showing all locks held in the system: [ 925.090020][ T23] 5 locks held by kworker/0:1/12: [ 925.095056][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.105327][ T23] #1: ffff8881da227dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.116390][ T23] #2: ffff8881d5133200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.124782][ T23] #3: ffff8881cd67d200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.133426][ T23] #4: ffff8881cd67e190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.143628][ T23] 1 lock held by khungtaskd/23: [ 925.148487][ T23] #0: ffffffff86cfe8a0 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x269 [ 925.157909][ T23] 5 locks held by kworker/1:2/83: [ 925.162921][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.173117][ T23] #1: ffff8881d89f7dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.184016][ T23] #2: ffff8881d50e5200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.192394][ T23] #3: ffff8881ce03a200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.201018][ T23] #4: ffff8881ce03c190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.211131][ T23] 1 lock held by rsyslogd/1605: [ 925.215975][ T23] #0: ffff8881d3672860 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe3/0x100 [ 925.224623][ T23] 2 locks held by getty/1695: [ 925.229307][ T23] #0: ffff8881d2dd6090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.238549][ T23] #1: ffffc900004612e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.248234][ T23] 2 locks held by getty/1696: [ 925.252897][ T23] #0: ffff8881d145d090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.262479][ T23] #1: ffffc900004792e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.272075][ T23] 2 locks held by getty/1697: [ 925.276748][ T23] #0: ffff8881d2df5090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.286013][ T23] #1: ffffc900004692e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.295599][ T23] 2 locks held by getty/1698: [ 925.300305][ T23] #0: ffff8881d19ef090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.309632][ T23] #1: ffffc900004712e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.319332][ T23] 2 locks held by getty/1699: [ 925.323995][ T23] #0: ffff8881d145e090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.333229][ T23] #1: ffffc9000047d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.342838][ T23] 2 locks held by getty/1700: [ 925.347567][ T23] #0: ffff8881d2df2090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.356874][ T23] #1: ffffc900004592e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.366481][ T23] 2 locks held by getty/1701: [ 925.371174][ T23] #0: ffff8881d33df090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 925.380417][ T23] #1: ffffc900004452e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x223/0x1ae0 [ 925.390035][ T23] 5 locks held by kworker/1:1/1741: [ 925.395224][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.405407][ T23] #1: ffff8881cf1dfdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.416299][ T23] #2: ffff8881d508e200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.424688][ T23] #3: ffff8881d9663200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.433302][ T23] #4: ffff8881d9660190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.443326][ T23] 5 locks held by kworker/0:0/1742: [ 925.448538][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.458980][ T23] #1: ffff8881cf18fdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.469708][ T23] #2: ffff8881d510c200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.478158][ T23] #3: ffff8881ce238200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.487820][ T23] #4: ffff8881ce23b190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.497833][ T23] 5 locks held by kworker/0:4/1745: [ 925.503029][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.513250][ T23] #1: ffff8881cf0dfdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.523970][ T23] #2: ffff8881d51b1200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.532350][ T23] #3: ffff8881ced6d200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.540995][ T23] #4: ffff8881ce868190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.551011][ T23] 5 locks held by kworker/0:5/1762: [ 925.556193][ T23] #0: ffff8881d8facd28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x827/0x1530 [ 925.566397][ T23] #1: ffff8881cee97dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85b/0x1530 [ 925.577109][ T23] #2: ffff8881d5192200 (&dev->mutex){....}, at: hub_event+0x1b2/0x3800 [ 925.585457][ T23] #3: ffff8881c4d9b200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x8d0 [ 925.594092][ T23] #4: ffff8881c4d9d190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 925.604111][ T23] [ 925.606428][ T23] ============================================= [ 925.606428][ T23] [ 925.614870][ T23] NMI backtrace for cpu 0 executing program [ 925.619225][ T23] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 5.4.0-rc6+ #0 [ 925.626489][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 925.636531][ T23] Call Trace: [ 925.639881][ T23] dump_stack+0xca/0x13e [ 925.644113][ T23] ? x86_vector_activate.cold+0x80/0xdd [ 925.649651][ T23] nmi_cpu_backtrace.cold+0x55/0x96 [ 925.654838][ T23] ? lapic_can_unplug_cpu.cold+0x3b/0x3b [ 925.660444][ T23] nmi_trigger_cpumask_backtrace+0x1b0/0x1c7 [ 925.666399][ T23] watchdog+0x9a4/0xe50 [ 925.670538][ T23] ? reset_hung_task_detector+0x30/0x30 [ 925.676061][ T23] kthread+0x318/0x420 [ 925.680108][ T23] ? kthread_create_on_node+0xf0/0xf0 [ 925.685562][ T23] ret_from_fork+0x24/0x30 [ 925.690004][ T23] Sending NMI from CPU 0 to CPUs 1: [ 925.695436][ C1] NMI backtrace for cpu 1 skipped: idling at default_idle+0x28/0x2e0 [ 925.696376][ T23] Kernel panic - not syncing: hung_task: blocked tasks [ 925.710324][ T23] CPU: 0 PID: 23 Comm: khungtaskd Not tainted 5.4.0-rc6+ #0 [ 925.717585][ T23] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 925.727888][ T23] Call Trace: [ 925.731524][ T23] dump_stack+0xca/0x13e [ 925.735750][ T23] panic+0x2aa/0x6e1 [ 925.739636][ T23] ? add_taint.cold+0x16/0x16 [ 925.744293][ T23] ? cpumask_next+0x1f/0x30 [ 925.748785][ T23] ? printk_safe_flush+0xd9/0x120 [ 925.754083][ T23] ? watchdog+0x9a4/0xe50 [ 925.758403][ T23] ? nmi_trigger_cpumask_backtrace+0x168/0x1c7 [ 925.764534][ T23] watchdog+0x9b5/0xe50 [ 925.768680][ T23] ? reset_hung_task_detector+0x30/0x30 [ 925.774415][ T23] kthread+0x318/0x420 [ 925.778465][ T23] ? kthread_create_on_node+0xf0/0xf0 [ 925.784247][ T23] ret_from_fork+0x24/0x30 [ 925.789413][ T23] Kernel Offset: disabled [ 925.793825][ T23] Rebooting in 86400 seconds..