Warning: Permanently added '10.128.0.210' (ED25519) to the list of known hosts. 2026/08/21 13:30:53 parsed 1 programs 2026/08/21 13:30:53 serving rpc on tcp://36045 [ 79.660539][ T5626] cgroup: Unknown subsys name 'net' [ 79.797641][ T5626] cgroup: Unknown subsys name 'cpuset' [ 79.805958][ T5626] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 81.105644][ T5626] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 83.813120][ T5637] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 83.831253][ T5637] ebtables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 83.844971][ T5637] arp_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 83.858403][ T5637] ip_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 83.874453][ T5637] ip6_tables: xtables 32bit compat interface no longer supported in namespaces and will be removed soon. [ 84.409986][ T3351] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.418169][ T3351] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 84.442363][ T1090] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 84.451309][ T1090] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 85.302945][ T5677] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 85.312085][ T5677] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 85.320720][ T5677] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 85.329556][ T5677] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 85.337846][ T5677] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 86.614635][ T987] cfg80211: failed to load regulatory.db [ 87.108481][ T5700] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.116485][ T5700] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.123775][ T5700] bridge_slave_0: entered allmulticast mode [ 87.130897][ T5700] bridge_slave_0: entered promiscuous mode [ 87.139584][ T5700] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.146766][ T5700] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.153883][ T5700] bridge_slave_1: entered allmulticast mode [ 87.161387][ T5700] bridge_slave_1: entered promiscuous mode [ 87.185723][ T5700] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 87.196761][ T5700] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 87.222584][ T5700] team0: Port device team_slave_0 added [ 87.230024][ T5700] team0: Port device team_slave_1 added [ 87.252124][ T5700] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 87.259076][ T5700] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 87.285065][ T5700] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 87.297052][ T5700] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 87.303991][ T5700] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 87.329888][ T5700] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 87.368418][ T5700] hsr_slave_0: entered promiscuous mode [ 87.374650][ T5700] hsr_slave_1: entered promiscuous mode [ 87.500445][ T5700] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 87.512443][ T5700] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 87.520591][ T5700] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 87.530618][ T5700] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 87.538389][ T5700] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 87.547998][ T5700] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 87.556616][ T5700] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 87.568417][ T5700] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 87.597980][ T5700] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.605638][ T5700] bridge0: port 2(bridge_slave_1) entered forwarding state [ 87.613161][ T5700] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.620307][ T5700] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.672304][ T5700] 8021q: adding VLAN 0 to HW filter on device bond0 [ 87.690357][ T1090] bridge0: port 1(bridge_slave_0) entered disabled state [ 87.699923][ T1090] bridge0: port 2(bridge_slave_1) entered disabled state [ 87.714134][ T5700] 8021q: adding VLAN 0 to HW filter on device team0 [ 87.728317][ T3351] bridge0: port 1(bridge_slave_0) entered blocking state [ 87.735455][ T3351] bridge0: port 1(bridge_slave_0) entered forwarding state [ 87.747959][ T1090] bridge0: port 2(bridge_slave_1) entered blocking state [ 87.755092][ T1090] bridge0: port 2(bridge_slave_1) entered forwarding state [ 88.028647][ T5700] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 88.071834][ T5700] veth0_vlan: entered promiscuous mode [ 88.083322][ T5700] veth1_vlan: entered promiscuous mode [ 88.112341][ T5700] veth0_macvtap: entered promiscuous mode [ 88.121892][ T5700] veth1_macvtap: entered promiscuous mode [ 88.143277][ T5700] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 88.156927][ T5700] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 88.205078][ T1090] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.235469][ T1118] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.245721][ T1118] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.256415][ T1118] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 88.345955][ T3351] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.410913][ T3351] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.506350][ T3351] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 88.573437][ T3351] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2026/08/21 13:31:05 executed programs: 0 [ 88.868066][ T51] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 88.878286][ T51] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 88.888231][ T51] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 88.896839][ T51] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 88.904592][ T51] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.282431][ T5745] bridge0: port 1(bridge_slave_0) entered blocking state [ 89.289735][ T5745] bridge0: port 1(bridge_slave_0) entered disabled state [ 89.297268][ T5745] bridge_slave_0: entered allmulticast mode [ 89.304096][ T5745] bridge_slave_0: entered promiscuous mode [ 89.311975][ T5745] bridge0: port 2(bridge_slave_1) entered blocking state [ 89.319187][ T5745] bridge0: port 2(bridge_slave_1) entered disabled state [ 89.326414][ T5745] bridge_slave_1: entered allmulticast mode [ 89.333241][ T5745] bridge_slave_1: entered promiscuous mode [ 89.359322][ T5745] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 89.371374][ T5745] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 89.397718][ T5745] team0: Port device team_slave_0 added [ 89.405673][ T5745] team0: Port device team_slave_1 added [ 89.432311][ T5745] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 89.439294][ T5745] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 89.465622][ T5745] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 89.478342][ T5745] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 89.485561][ T5745] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 89.511603][ T5745] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 89.551648][ T5745] hsr_slave_0: entered promiscuous mode [ 89.558407][ T5745] hsr_slave_1: entered promiscuous mode [ 89.565054][ T5745] debugfs: 'hsr0' already exists in 'hsr' [ 89.570840][ T5745] Cannot create hsr debugfs directory [ 90.925526][ T5677] Bluetooth: hci0: command tx timeout [ 91.189122][ T3351] bridge_slave_1: left allmulticast mode [ 91.195074][ T3351] bridge_slave_1: left promiscuous mode [ 91.202404][ T3351] bridge0: port 2(bridge_slave_1) entered disabled state [ 91.214079][ T3351] bridge_slave_0: left allmulticast mode [ 91.219757][ T3351] bridge_slave_0: left promiscuous mode [ 91.226394][ T3351] bridge0: port 1(bridge_slave_0) entered disabled state [ 91.333847][ T3351] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 91.344236][ T3351] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 91.356710][ T3351] bond0 (unregistering): Released all slaves [ 91.482021][ T3351] hsr_slave_0: left promiscuous mode [ 91.489478][ T3351] hsr_slave_1: left promiscuous mode [ 91.496764][ T3351] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 91.504205][ T3351] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 91.515329][ T3351] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 91.526000][ T3351] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 91.541243][ T3351] veth1_macvtap: left promiscuous mode [ 91.547368][ T3351] veth0_macvtap: left promiscuous mode [ 91.553023][ T3351] veth1_vlan: left promiscuous mode [ 91.558733][ T3351] veth0_vlan: left promiscuous mode [ 91.846620][ T3351] team0 (unregistering): Port device team_slave_1 removed [ 91.860171][ T3351] team0 (unregistering): Port device team_slave_0 removed [ 91.946382][ T5278] 8021q: adding VLAN 0 to HW filter on device eth1 [ 92.249694][ T5745] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 92.262118][ T5745] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 92.270288][ T5745] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 92.282936][ T5745] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 92.396583][ T5745] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 92.408673][ T5745] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 92.419094][ T5745] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 92.454463][ T5745] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 92.607972][ T5745] 8021q: adding VLAN 0 to HW filter on device bond0 [ 92.637403][ T5745] 8021q: adding VLAN 0 to HW filter on device team0 [ 92.650359][ T3351] bridge0: port 1(bridge_slave_0) entered blocking state [ 92.657531][ T3351] bridge0: port 1(bridge_slave_0) entered forwarding state [ 92.688356][ T3351] bridge0: port 2(bridge_slave_1) entered blocking state [ 92.695526][ T3351] bridge0: port 2(bridge_slave_1) entered forwarding state [ 93.005041][ T5677] Bluetooth: hci0: command tx timeout [ 93.080421][ T5745] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 93.126654][ T5745] veth0_vlan: entered promiscuous mode [ 93.137235][ T5745] veth1_vlan: entered promiscuous mode [ 93.162420][ T5745] veth0_macvtap: entered promiscuous mode [ 93.172170][ T5745] veth1_macvtap: entered promiscuous mode [ 93.189630][ T5745] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 93.203541][ T5745] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 93.268810][ T1090] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.277200][ T1090] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.299452][ T1118] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 93.307665][ T1118] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 93.315116][ T3351] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.315167][ T3351] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.315200][ T3351] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.315232][ T3351] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 93.635133][ T43] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 93.794905][ T43] usb 1-1: Using ep0 maxpacket: 8 [ 93.801970][ T43] usb 1-1: New USB device found, idVendor=055f, idProduct=a800, bcdDevice= 1.00 [ 93.814558][ T43] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 8 [ 93.824297][ T43] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 64 [ 93.834171][ T43] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x84 has invalid maxpacket 64 [ 93.844060][ T43] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 93.859791][ T5820] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 [ 93.867357][ T5820] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 [ 93.874548][ T5820] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 [ 93.885534][ T43] mdc800 1-1:1.0: Found Mustek MDC800 on USB. [ 94.082477][ T5820] [ 94.084821][ T5820] ====================================================== [ 94.091826][ T5820] WARNING: possible circular locking dependency detected [ 94.098825][ T5820] syzkaller #0 Not tainted [ 94.103214][ T5820] ------------------------------------------------------ [ 94.110205][ T5820] syz.0.17/5820 is trying to acquire lock: [ 94.115982][ T5820] ffff888028bb4218 (&mdc800->io_lock){+.+.}-{4:4}, at: mdc800_device_open+0x2e/0x470 [ 94.125469][ T5820] [ 94.125469][ T5820] but task is already holding lock: [ 94.132855][ T5820] ffffffff8f8f0988 (minor_rwsem#2){++++}-{4:4}, at: usb_open+0x30/0x1e0 [ 94.141192][ T5820] [ 94.141192][ T5820] which lock already depends on the new lock. [ 94.141192][ T5820] [ 94.151573][ T5820] [ 94.151573][ T5820] the existing dependency chain (in reverse order) is: [ 94.160566][ T5820] [ 94.160566][ T5820] -> #1 (minor_rwsem#2){++++}-{4:4}: [ 94.168015][ T5820] down_write+0x96/0x200 [ 94.172764][ T5820] usb_register_dev+0x142/0x5e0 [ 94.178112][ T5820] mdc800_usb_probe+0xf96/0x18c0 [ 94.183550][ T5820] usb_probe_interface+0x653/0xc60 [ 94.189163][ T5820] really_probe+0x254/0xae0 [ 94.194173][ T5820] __driver_probe_device+0x1e8/0x360 [ 94.199961][ T5820] driver_probe_device+0x4f/0x240 [ 94.205497][ T5820] __device_attach_driver+0x270/0x410 [ 94.211397][ T5820] bus_for_each_drv+0x258/0x2f0 [ 94.216751][ T5820] __device_attach+0x2c4/0x450 [ 94.222017][ T5820] device_initial_probe+0xa1/0xd0 [ 94.227550][ T5820] bus_probe_device+0x12a/0x220 [ 94.232900][ T5820] device_add+0x7d7/0xb80 [ 94.237727][ T5820] usb_set_configuration+0x1ad8/0x2180 [ 94.243686][ T5820] usb_generic_driver_probe+0x8d/0x150 [ 94.249645][ T5820] usb_probe_device+0x1c3/0x3b0 [ 94.254999][ T5820] really_probe+0x254/0xae0 [ 94.260021][ T5820] __driver_probe_device+0x1e8/0x360 [ 94.265810][ T5820] driver_probe_device+0x4f/0x240 [ 94.271335][ T5820] __device_attach_driver+0x270/0x410 [ 94.277207][ T5820] bus_for_each_drv+0x258/0x2f0 [ 94.282565][ T5820] __device_attach+0x2c4/0x450 [ 94.287831][ T5820] device_initial_probe+0xa1/0xd0 [ 94.293359][ T5820] bus_probe_device+0x12a/0x220 [ 94.298709][ T5820] device_add+0x7d7/0xb80 [ 94.303536][ T5820] usb_new_device+0x9aa/0x1690 [ 94.308796][ T5820] hub_event+0x28e8/0x4d30 [ 94.313713][ T5820] process_scheduled_works+0xc3d/0x1630 [ 94.319756][ T5820] worker_thread+0xa47/0xfb0 [ 94.324849][ T5820] kthread+0x38b/0x480 [ 94.329422][ T5820] ret_from_fork+0x514/0xb70 [ 94.334511][ T5820] ret_from_fork_asm+0x1a/0x30 [ 94.339776][ T5820] [ 94.339776][ T5820] -> #0 (&mdc800->io_lock){+.+.}-{4:4}: [ 94.347484][ T5820] __lock_acquire+0x1520/0x2cf0 [ 94.352840][ T5820] lock_acquire+0x106/0x350 [ 94.357845][ T5820] __mutex_lock+0x19d/0x1550 [ 94.362932][ T5820] mdc800_device_open+0x2e/0x470 [ 94.368404][ T5820] usb_open+0x156/0x1e0 [ 94.373061][ T5820] chrdev_open+0x4d9/0x600 [ 94.377977][ T5820] do_dentry_open+0x816/0x1380 [ 94.383256][ T5820] vfs_open+0x3b/0x340 [ 94.387826][ T5820] path_openat+0x1443/0x1d60 [ 94.392937][ T5820] do_file_open+0x23e/0x4a0 [ 94.397937][ T5820] do_sys_openat2+0x115/0x200 [ 94.403136][ T5820] __ia32_compat_sys_openat+0x131/0x160 [ 94.409204][ T5820] do_int80_emulation+0x198/0x500 [ 94.414732][ T5820] asm_int80_emulation+0x1a/0x20 [ 94.420365][ T5820] [ 94.420365][ T5820] other info that might help us debug this: [ 94.420365][ T5820] [ 94.430568][ T5820] Possible unsafe locking scenario: [ 94.430568][ T5820] [ 94.438015][ T5820] CPU0 CPU1 [ 94.443543][ T5820] ---- ---- [ 94.448886][ T5820] rlock(minor_rwsem#2); [ 94.453202][ T5820] lock(&mdc800->io_lock); [ 94.460200][ T5820] lock(minor_rwsem#2); [ 94.466944][ T5820] lock(&mdc800->io_lock); [ 94.471428][ T5820] [ 94.471428][ T5820] *** DEADLOCK *** [ 94.471428][ T5820] [ 94.479548][ T5820] locks held by syz.0.17/5820: 1, last CPU#0: [ 94.485609][ T5820] #0: ffffffff8f8f0988 (minor_rwsem#2){++++}-{4:4}, at: usb_open+0x30/0x1e0 [ 94.494376][ T5820] [ 94.494376][ T5820] stack backtrace: [ 94.500256][ T5820] CPU: 0 UID: 0 PID: 5820 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) [ 94.500270][ T5820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 94.500281][ T5820] Call Trace: [ 94.500288][ T5820] [ 94.500295][ T5820] dump_stack_lvl+0xe8/0x150 [ 94.500312][ T5820] print_circular_bug+0x2e1/0x300 [ 94.500324][ T5820] check_noncircular+0x12e/0x150 [ 94.500335][ T5820] __lock_acquire+0x1520/0x2cf0 [ 94.500350][ T5820] ? stack_trace_save+0xa9/0x100 [ 94.500363][ T5820] ? __pfx_stack_trace_save+0x10/0x10 [ 94.500375][ T5820] ? mark_lock_irq+0x38f/0x420 [ 94.500384][ T5820] ? mdc800_device_open+0x2e/0x470 [ 94.500396][ T5820] lock_acquire+0x106/0x350 [ 94.500409][ T5820] ? mdc800_device_open+0x2e/0x470 [ 94.500423][ T5820] __mutex_lock+0x19d/0x1550 [ 94.500434][ T5820] ? mdc800_device_open+0x2e/0x470 [ 94.500446][ T5820] ? __lock_acquire+0x683/0x2cf0 [ 94.500460][ T5820] ? __mutex_unlock_slowpath+0x731/0x900 [ 94.500469][ T5820] ? mdc800_device_open+0x2e/0x470 [ 94.500481][ T5820] ? __pfx___mutex_lock+0x10/0x10 [ 94.500495][ T5820] mdc800_device_open+0x2e/0x470 [ 94.500507][ T5820] ? __pfx_mdc800_device_open+0x10/0x10 [ 94.500519][ T5820] usb_open+0x156/0x1e0 [ 94.500529][ T5820] chrdev_open+0x4d9/0x600 [ 94.500541][ T5820] ? __pfx_chrdev_open+0x10/0x10 [ 94.500551][ T5820] ? fsnotify_open_perm_and_set_mode+0x135/0x6b0 [ 94.500563][ T5820] ? __pfx_chrdev_open+0x10/0x10 [ 94.500573][ T5820] do_dentry_open+0x816/0x1380 [ 94.500587][ T5820] vfs_open+0x3b/0x340 [ 94.500597][ T5820] ? path_openat+0x1428/0x1d60 [ 94.500607][ T5820] path_openat+0x1443/0x1d60 [ 94.500620][ T5820] do_file_open+0x23e/0x4a0 [ 94.500630][ T5820] ? __pfx_do_file_open+0x10/0x10 [ 94.500643][ T5820] ? _raw_spin_unlock+0x28/0x50 [ 94.500656][ T5820] ? alloc_fd+0x651/0x6c0 [ 94.500671][ T5820] do_sys_openat2+0x115/0x200 [ 94.500683][ T5820] ? __pfx_do_sys_openat2+0x10/0x10 [ 94.500694][ T5820] ? exc_page_fault+0x6a/0xc0 [ 94.500704][ T5820] ? do_user_addr_fault+0xc4c/0x1340 [ 94.500719][ T5820] __ia32_compat_sys_openat+0x131/0x160 [ 94.500733][ T5820] do_int80_emulation+0x198/0x500 [ 94.500743][ T5820] ? trace_irq_disable+0x3b/0x140 [ 94.500756][ T5820] ? asm_int80_emulation+0x1a/0x20 [ 94.500765][ T5820] ? clear_bhb_loop+0x70/0xc0 [ 94.500774][ T5820] ? clear_bhb_loop+0x70/0xc0 [ 94.500784][ T5820] asm_int80_emulation+0x1a/0x20 [ 94.500794][ T5820] RIP: 0023:0xf71a74eb [ 94.500807][ T5820] Code: 57 56 53 8b 44 24 14 f6 00 08 75 23 8b 44 24 18 8b 5c 24 1c 8b 4c 24 20 8b 54 24 24 8b 74 24 28 8b 7c 24 2c 8b 6c 24 30 cd 80 <5b> 5e 5f 5d c3 5b 5e 5f 5d e9 f7 a1 ff ff 66 90 66 90 66 90 90 53 [ 94.500816][ T5820] RSP: 002b:00000000ffcee49c EFLAGS: 00000246 ORIG_RAX: 0000000000000127 [ 94.500826][ T5820] RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000ffcee560 [ 94.500833][ T5820] RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000 [ 94.500839][ T5820] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 94.500845][ T5820] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 [ 94.500850][ T5820] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 94.500859][ T5820] [ 94.820368][ T189] usb 1-1: USB disconnect, device number 2 [ 94.828088][ T189] mdc800 1-1:1.0: Mustek MDC800 disconnected from USB. [ 95.084777][ T5677] Bluetooth: hci0: command tx timeout