[ 34.653842][ T1326] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.733854][ T1326] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.803604][ T1326] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 34.950986][ T1326] bridge_slave_1: left allmulticast mode [ 34.951023][ T1326] bridge_slave_1: left promiscuous mode [ 34.951256][ T1326] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.957988][ T1326] bridge_slave_0: left allmulticast mode [ 34.958016][ T1326] bridge_slave_0: left promiscuous mode [ 34.958086][ T1326] bridge0: port 1(bridge_slave_0) entered disabled state [ 35.020725][ T1326] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 35.061505][ T1326] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 35.110990][ T1326] bond0 (unregistering): Released all slaves [ 35.163083][ T1326] hsr_slave_0: left promiscuous mode [ 35.164417][ T1326] hsr_slave_1: left promiscuous mode [ 35.165832][ T1326] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 35.167048][ T1326] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 35.168838][ T1326] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 35.170549][ T1326] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 35.174952][ T1326] veth1_macvtap: left promiscuous mode [ 35.176070][ T1326] veth0_macvtap: left promiscuous mode [ 35.177085][ T1326] veth1_vlan: left promiscuous mode [ 35.178179][ T1326] veth0_vlan: left promiscuous mode [ 35.267565][ T1326] team0 (unregistering): Port device team_slave_1 removed [ 35.272126][ T1326] team0 (unregistering): Port device team_slave_0 removed [ 35.318807][ T4403] 8021q: adding VLAN 0 to HW filter on device eth0 [ 35.437849][ T4403] 8021q: adding VLAN 0 to HW filter on device eth2 [ 35.548541][ T4403] 8021q: adding VLAN 0 to HW filter on device eth3 [ 35.654193][ T4403] 8021q: adding VLAN 0 to HW filter on device eth1 Warning: Permanently added '10.128.0.191' (ED25519) to the list of known hosts. 1970/01/01 00:00:38 ignoring optional flag "type"="gce" 1970/01/01 00:00:38 parsed 1 programs 1970/01/01 00:00:38 executed programs: 0 [ 38.899538][ T50] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 38.901267][ T50] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 38.902669][ T50] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 38.903693][ T50] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 38.903908][ T50] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 39.036424][ T4882] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.036509][ T4882] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.036556][ T4882] bridge_slave_0: entered allmulticast mode [ 39.037014][ T4882] bridge_slave_0: entered promiscuous mode [ 39.038085][ T4882] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.038130][ T4882] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.038207][ T4882] bridge_slave_1: entered allmulticast mode [ 39.038604][ T4882] bridge_slave_1: entered promiscuous mode [ 39.051672][ T4882] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 39.052850][ T4882] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 39.059466][ T4882] team0: Port device team_slave_0 added [ 39.060697][ T4882] team0: Port device team_slave_1 added [ 39.067259][ T4882] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 39.067455][ T4882] 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. [ 39.067476][ T4882] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 39.068042][ T4882] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 39.068050][ T4882] 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. [ 39.068061][ T4882] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 39.088371][ T4882] hsr_slave_0: entered promiscuous mode [ 39.088656][ T4882] hsr_slave_1: entered promiscuous mode [ 39.413164][ T4882] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 39.415996][ T4882] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 39.418002][ T4882] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 39.420497][ T4882] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 39.422296][ T4882] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 39.424733][ T4882] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 39.426032][ T4882] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 39.427463][ T4882] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 39.435574][ T4882] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.435616][ T4882] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.435713][ T4882] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.435744][ T4882] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.458359][ T4882] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.461842][ T1326] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.465184][ T1326] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.469361][ T4882] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.476758][ T40] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.476802][ T40] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.478684][ T40] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.478705][ T40] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.584235][ T4882] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.599356][ T4882] veth0_vlan: entered promiscuous mode [ 39.606672][ T4882] veth1_vlan: entered promiscuous mode [ 39.613526][ T4882] veth0_macvtap: entered promiscuous mode [ 39.616832][ T4882] veth1_macvtap: entered promiscuous mode [ 39.622492][ T4882] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 39.625727][ T4882] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 39.629149][ T296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.629248][ T296] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.629275][ T296] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.629290][ T296] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 39.800242][ T4998] nbd0: detected capacity change from 0 to 2 [ 40.505044][ T4733] block nbd0: Receive control failed (result -104) [ 40.970550][ T4733] Bluetooth: hci0: command tx timeout [ 43.050121][ T4733] Bluetooth: hci0: command tx timeout [ 45.130275][ T4733] Bluetooth: hci0: command tx timeout [ 47.210071][ T4733] Bluetooth: hci0: command tx timeout [ 64.501272][ T1596] ieee802154 phy0 wpan0: encryption failed: -22 [ 64.501400][ T1596] ieee802154 phy1 wpan1: encryption failed: -22 [ 64.502745][ T9] cfg80211: failed to load regulatory.db [ 70.250916][ T4406] block nbd0: Possible stuck request 00000000a2c0258b: control (read@0,1024B). Runtime 30 seconds 1970/01/01 00:01:34 executed programs: 1 [ 95.687007][ T50] Bluetooth: hci1: unexpected cc 0x0c03 length: 249 > 1 [ 95.688903][ T50] Bluetooth: hci1: unexpected cc 0x1003 length: 249 > 9 [ 95.690297][ T50] Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9 [ 95.692060][ T50] Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4 [ 95.693567][ T50] Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2 [ 95.821990][ T5044] bridge0: port 1(bridge_slave_0) entered blocking state [ 95.822067][ T5044] bridge0: port 1(bridge_slave_0) entered disabled state [ 95.822152][ T5044] bridge_slave_0: entered allmulticast mode [ 95.822555][ T5044] bridge_slave_0: entered promiscuous mode [ 95.823700][ T5044] bridge0: port 2(bridge_slave_1) entered blocking state [ 95.823749][ T5044] bridge0: port 2(bridge_slave_1) entered disabled state [ 95.823802][ T5044] bridge_slave_1: entered allmulticast mode [ 95.824230][ T5044] bridge_slave_1: entered promiscuous mode [ 95.834096][ T5044] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 95.834940][ T5044] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 95.842152][ T5044] team0: Port device team_slave_0 added [ 95.842860][ T5044] team0: Port device team_slave_1 added [ 95.850208][ T5044] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 95.850228][ T5044] 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. [ 95.850249][ T5044] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 95.850719][ T5044] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 95.850726][ T5044] 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. [ 95.850739][ T5044] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 95.868668][ T5044] hsr_slave_0: entered promiscuous mode [ 95.869265][ T5044] hsr_slave_1: entered promiscuous mode [ 95.869478][ T5044] debugfs: 'hsr0' already exists in 'hsr' [ 95.869512][ T5044] Cannot create hsr debugfs directory [ 95.944648][ T5044] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 95.993550][ T5044] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.083561][ T5044] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.184352][ T5044] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 96.303043][ T5044] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 96.305474][ T5044] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 96.305861][ T5044] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 96.307672][ T5044] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 96.307980][ T5044] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 96.309937][ T5044] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 96.310623][ T5044] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 96.312596][ T5044] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 96.319585][ T5044] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.319626][ T5044] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.319701][ T5044] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.319731][ T5044] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.333194][ T5044] 8021q: adding VLAN 0 to HW filter on device bond0 [ 96.336401][ T40] bridge0: port 1(bridge_slave_0) entered disabled state [ 96.337853][ T40] bridge0: port 2(bridge_slave_1) entered disabled state [ 96.342314][ T5044] 8021q: adding VLAN 0 to HW filter on device team0 [ 96.344374][ T1927] bridge0: port 1(bridge_slave_0) entered blocking state [ 96.344417][ T1927] bridge0: port 1(bridge_slave_0) entered forwarding state [ 96.347970][ T1927] bridge0: port 2(bridge_slave_1) entered blocking state [ 96.348009][ T1927] bridge0: port 2(bridge_slave_1) entered forwarding state [ 96.435069][ T5044] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 96.446713][ T5044] veth0_vlan: entered promiscuous mode [ 96.448882][ T5044] veth1_vlan: entered promiscuous mode [ 96.455022][ T5044] veth0_macvtap: entered promiscuous mode [ 96.456593][ T5044] veth1_macvtap: entered promiscuous mode [ 96.460292][ T5044] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 96.461447][ T5044] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 96.464873][ T40] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.466443][ T40] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.469193][ T40] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 96.471903][ T40] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 97.770364][ T50] Bluetooth: hci1: command tx timeout [ 99.850074][ T50] Bluetooth: hci1: command tx timeout [ 100.330510][ T4406] block nbd0: Possible stuck request 00000000a2c0258b: control (read@0,1024B). Runtime 60 seconds [ 101.930073][ T50] Bluetooth: hci1: command tx timeout [ 102.533819][ T4348] udevd[4348]: worker [4886] /devices/virtual/block/nbd0 is taking a long time [ 104.010073][ T50] Bluetooth: hci1: command tx timeout [ 125.930808][ T1596] ieee802154 phy0 wpan0: encryption failed: -22 [ 125.930856][ T1596] ieee802154 phy1 wpan1: encryption failed: -22 [ 130.410179][ T4406] block nbd0: Possible stuck request 00000000a2c0258b: control (read@0,1024B). Runtime 90 seconds 1970/01/01 00:02:31 executed programs: 2 [ 152.544501][ T4733] Bluetooth: hci2: unexpected cc 0x0c03 length: 249 > 1 [ 152.545706][ T4733] Bluetooth: hci2: unexpected cc 0x1003 length: 249 > 9 [ 152.546203][ T4733] Bluetooth: hci2: unexpected cc 0x1001 length: 249 > 9 [ 152.546646][ T4733] Bluetooth: hci2: unexpected cc 0x0c23 length: 249 > 4 [ 152.546852][ T4733] Bluetooth: hci2: unexpected cc 0x0c38 length: 249 > 2 [ 152.678605][ T5086] bridge0: port 1(bridge_slave_0) entered blocking state [ 152.678675][ T5086] bridge0: port 1(bridge_slave_0) entered disabled state [ 152.678726][ T5086] bridge_slave_0: entered allmulticast mode [ 152.679154][ T5086] bridge_slave_0: entered promiscuous mode [ 152.680731][ T5086] bridge0: port 2(bridge_slave_1) entered blocking state [ 152.680797][ T5086] bridge0: port 2(bridge_slave_1) entered disabled state [ 152.680854][ T5086] bridge_slave_1: entered allmulticast mode [ 152.681254][ T5086] bridge_slave_1: entered promiscuous mode [ 152.691753][ T5086] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 152.692692][ T5086] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 152.699771][ T5086] team0: Port device team_slave_0 added [ 152.700937][ T5086] team0: Port device team_slave_1 added [ 152.708288][ T5086] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 152.708311][ T5086] 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. [ 152.708327][ T5086] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 152.708842][ T5086] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 152.708849][ T5086] 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. [ 152.708864][ T5086] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 152.726340][ T5086] hsr_slave_0: entered promiscuous mode [ 152.726648][ T5086] hsr_slave_1: entered promiscuous mode [ 152.726857][ T5086] debugfs: 'hsr0' already exists in 'hsr' [ 152.726866][ T5086] Cannot create hsr debugfs directory [ 152.794836][ T5086] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 152.843796][ T5086] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 152.913283][ T5086] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 152.974450][ T5086] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 153.103606][ T5086] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 153.105811][ T5086] 8021q: adding VLAN 0 to HW filter on device netdevsim0 [ 153.107487][ T5086] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 153.109633][ T5086] 8021q: adding VLAN 0 to HW filter on device netdevsim1 [ 153.109957][ T5086] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 153.112036][ T5086] 8021q: adding VLAN 0 to HW filter on device netdevsim2 [ 153.112380][ T5086] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 153.114352][ T5086] 8021q: adding VLAN 0 to HW filter on device netdevsim3 [ 153.121881][ T5086] bridge0: port 2(bridge_slave_1) entered blocking state [ 153.121921][ T5086] bridge0: port 2(bridge_slave_1) entered forwarding state [ 153.121993][ T5086] bridge0: port 1(bridge_slave_0) entered blocking state [ 153.122021][ T5086] bridge0: port 1(bridge_slave_0) entered forwarding state [ 153.135389][ T5086] 8021q: adding VLAN 0 to HW filter on device bond0 [ 153.139409][ T1326] bridge0: port 1(bridge_slave_0) entered disabled state [ 153.141015][ T1326] bridge0: port 2(bridge_slave_1) entered disabled state [ 153.145130][ T5086] 8021q: adding VLAN 0 to HW filter on device team0 [ 153.147288][ T1326] bridge0: port 1(bridge_slave_0) entered blocking state [ 153.147333][ T1326] bridge0: port 1(bridge_slave_0) entered forwarding state [ 153.151040][ T296] bridge0: port 2(bridge_slave_1) entered blocking state [ 153.151078][ T296] bridge0: port 2(bridge_slave_1) entered forwarding state [ 153.245925][ T5086] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 153.256141][ T5086] veth0_vlan: entered promiscuous mode [ 153.257754][ T5086] veth1_vlan: entered promiscuous mode [ 153.265806][ T5086] veth0_macvtap: entered promiscuous mode [ 153.266944][ T5086] veth1_macvtap: entered promiscuous mode [ 153.271196][ T5086] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 153.272287][ T5086] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 153.274054][ T296] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 153.274134][ T40] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 153.274201][ T40] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 153.274253][ T40] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 154.570120][ T50] Bluetooth: hci2: command tx timeout [ 156.650682][ T50] Bluetooth: hci2: command tx timeout [ 158.730175][ T50] Bluetooth: hci2: command tx timeout [ 160.490189][ T4406] block nbd0: Possible stuck request 00000000a2c0258b: control (read@0,1024B). Runtime 120 seconds [ 160.810091][ T50] Bluetooth: hci2: command tx timeout [ 163.850086][ T50] Bluetooth: hci0: command 0x0406 tx timeout [ 187.370386][ T1596] ieee802154 phy0 wpan0: encryption failed: -22 [ 187.370431][ T1596] ieee802154 phy1 wpan1: encryption failed: -22 [ 190.570307][ T4406] block nbd0: Possible stuck request 00000000a2c0258b: control (read@0,1024B). Runtime 150 seconds ** replaying previous printk message ** [ 193.770524][ T31] INFO: task syz-executor.0:4984 blocked for more than 143 seconds. [ 193.770554][ T31] Not tainted syzkaller #0 [ 193.770573][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 193.770582][ T31] task:syz-executor.0 state:D stack:0 pid:4984 tgid:4983 ppid:4882 task_flags:0x400140 flags:0x00000019 [ 193.770603][ T31] Call trace: [ 193.770610][ T31] __switch_to+0x2b0/0x6e0 (T) [ 193.770631][ T31] __schedule+0x1370/0x2d80 [ 193.770644][ T31] schedule+0x13c/0x20c [ 193.770656][ T31] schedule_preempt_disabled+0x18/0x2c [ 193.770668][ T31] __mutex_lock+0x4ec/0xf14 [ 193.770681][ T31] mutex_lock_nested+0x24/0x30 [ 193.770693][ T31] nbd_ioctl+0x764/0x8e8 [ 193.770706][ T31] blkdev_ioctl+0x574/0x904 [ 193.770721][ T31] __arm64_sys_ioctl+0x14c/0x1c4 [ 193.770736][ T31] invoke_syscall+0x98/0x244 [ 193.770751][ T31] el0_svc_common+0xec/0x23c [ 193.770768][ T31] do_el0_svc+0x4c/0x5c [ 193.770782][ T31] el0_svc+0x64/0x260 [ 193.770796][ T31] el0t_64_sync_handler+0x48/0x148 [ 193.770809][ T31] el0t_64_sync+0x198/0x19c [ 193.770823][ T31] INFO: task syz-executor.0:4998 blocked for more than 143 seconds. [ 193.770832][ T31] Not tainted syzkaller #0 [ 193.770839][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 193.770846][ T31] task:syz-executor.0 state:D stack:0 pid:4998 tgid:4983 ppid:4882 task_flags:0x480140 flags:0x00000001 [ 193.770863][ T31] Call trace: [ 193.770870][ T31] __switch_to+0x2b0/0x6e0 (T) [ 193.770882][ T31] __schedule+0x1370/0x2d80 [ 193.770894][ T31] schedule+0x13c/0x20c [ 193.770905][ T31] blk_mq_freeze_queue_wait+0xe0/0x160 [ 193.770917][ T31] blk_mq_freeze_queue_nomemsave+0x28/0x38 [ 193.770928][ T31] nbd_add_socket+0x4ec/0xc4c [ 193.770939][ T31] nbd_ioctl+0x1fc/0x8e8 [ 193.770950][ T31] blkdev_ioctl+0x574/0x904 [ 193.770973][ T31] __arm64_sys_ioctl+0x14c/0x1c4 [ 193.770988][ T31] invoke_syscall+0x98/0x244 [ 193.771004][ T31] el0_svc_common+0xec/0x23c [ 193.771018][ T31] do_el0_svc+0x4c/0x5c [ 193.771031][ T31] el0_svc+0x64/0x260 [ 193.771044][ T31] el0t_64_sync_handler+0x48/0x148 [ 193.771057][ T31] el0t_64_sync+0x198/0x19c [ 193.771077][ T31] [ 193.771077][ T31] Showing all locks held in the system: [ 193.771087][ T31] 1 lock held by khungtaskd/31: [ 193.771095][ T31] #0: ffff800088cf6fe0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x4c/0x188 [ 193.771147][ T31] 2 locks held by kworker/u8:11/1927: [ 193.771159][ T31] 2 locks held by getty/4496: [ 193.771166][ T31] #0: ffff0000cdfb40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 193.771208][ T31] #1: ffff8000924cb2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x348/0xf78 [ 193.771251][ T31] 1 lock held by udevd/4886: [ 193.771258][ T31] #0: ffff0000c788d350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 193.771299][ T31] 1 lock held by syz-executor.0/4984: [ 193.771307][ T31] #0: ffff0000c7896a60 (&nbd->config_lock){+.+.}-{4:4}, at: nbd_ioctl+0x764/0x8e8 [ 193.771346][ T31] 3 locks held by syz-executor.0/4998: [ 193.771354][ T31] #0: ffff0000c7896a60 (&nbd->config_lock){+.+.}-{4:4}, at: nbd_ioctl+0x114/0x8e8 [ 193.771393][ T31] #1: ffff0000c7c689a8 (&q->q_usage_counter(io)#33){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x20/0x38 [ 193.771440][ T31] #2: ffff0000c7c689e0 (&q->q_usage_counter(queue)#17){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x20/0x38 [ 193.771485][ T31] 1 lock held by syz-executor.0/5077: [ 193.771493][ T31] #0: ffff0000c788d350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 193.771531][ T31] 1 lock held by syz-executor.0/5078: [ 193.771539][ T31] #0: ffff0000c788d350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 193.771578][ T31] 1 lock held by syz-executor.0/5120: [ 193.771586][ T31] #0: ffff0000c788d350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 193.771625][ T31] 1 lock held by syz-executor.0/5121: [ 193.771632][ T31] #0: ffff0000c788d350 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xc4/0x880 [ 193.771671][ T31] [ 193.771677][ T31] ============================================= [ 193.771677][ T31] [ 193.771682][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 193.839508][ T31] CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT [ 193.840961][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 193.842459][ T31] Call trace: [ 193.842948][ T31] show_stack+0x2c/0x3c (C) [ 193.843689][ T31] __dump_stack+0x30/0x40 [ 193.844411][ T31] dump_stack_lvl+0x30/0x12c [ 193.845150][ T31] dump_stack+0x1c/0x28 [ 193.845813][ T31] vpanic+0x594/0xaf8 [ 193.846433][ T31] vpanic+0x0/0xaf8 [ 193.847073][ T31] hung_task_panic+0x0/0x2c [ 193.847798][ T31] kthread+0x304/0x3d4 [ 193.848454][ T31] ret_from_fork+0x10/0x20 [ 193.849176][ T31] SMP: stopping secondary CPUs [ 193.849970][ T31] Kernel Offset: disabled [ 193.850730][ T31] CPU features: 0x14000000,003c0008,27020501,5427fea7 [ 193.851820][ T31] Memory Limit: none [ 194.083721][ T31] Rebooting in 86400 seconds..