Warning: Permanently added '10.128.0.39' (ED25519) to the list of known hosts. 1970/01/01 00:01:03 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:03 ignoring optional flag "type"="gce" 1970/01/01 00:01:03 parsed 1 programs [ 64.113668][ T4276] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:01:04 executed programs: 0 [ 64.479163][ T4302] chnl_net:caif_netlink_parms(): no params data found [ 64.639603][ T4301] chnl_net:caif_netlink_parms(): no params data found [ 64.647034][ T4302] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.649024][ T4302] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.651865][ T4302] device bridge_slave_0 entered promiscuous mode [ 64.655609][ T4302] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.657596][ T4302] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.660197][ T4302] device bridge_slave_1 entered promiscuous mode [ 64.691470][ T4307] chnl_net:caif_netlink_parms(): no params data found [ 64.723653][ T4302] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.730550][ T4312] chnl_net:caif_netlink_parms(): no params data found [ 64.769194][ T4302] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.811575][ T4301] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.813860][ T4301] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.816563][ T4301] device bridge_slave_0 entered promiscuous mode [ 64.820407][ T4301] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.822447][ T4301] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.825936][ T4301] device bridge_slave_1 entered promiscuous mode [ 64.836138][ T4302] team0: Port device team_slave_0 added [ 64.866813][ T4302] team0: Port device team_slave_1 added [ 64.875725][ T4301] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.891841][ T4307] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.893983][ T4307] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.896596][ T4307] device bridge_slave_0 entered promiscuous mode [ 64.904157][ T4301] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.924614][ T4307] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.926640][ T4307] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.929273][ T4307] device bridge_slave_1 entered promiscuous mode [ 64.950856][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.952772][ T4302] 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 1560 would solve the problem. [ 64.960376][ T4302] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.980129][ T4301] team0: Port device team_slave_0 added [ 64.989178][ T4312] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.991150][ T4312] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.994642][ T4312] device bridge_slave_0 entered promiscuous mode [ 64.998349][ T4302] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.000317][ T4302] 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 1560 would solve the problem. [ 65.008783][ T4302] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.019922][ T4301] team0: Port device team_slave_1 added [ 65.024111][ T4312] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.026146][ T4312] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.028813][ T4312] device bridge_slave_1 entered promiscuous mode [ 65.049288][ T4307] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.061122][ T4307] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.092870][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.095120][ T4301] 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 1560 would solve the problem. [ 65.102065][ T4301] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.109963][ T4312] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.145294][ T4302] device hsr_slave_0 entered promiscuous mode [ 65.183821][ T4302] device hsr_slave_1 entered promiscuous mode [ 65.222130][ T4312] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.225853][ T4301] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.227882][ T4301] 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 1560 would solve the problem. [ 65.235609][ T4301] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.248274][ T4307] team0: Port device team_slave_0 added [ 65.275208][ T4297] chnl_net:caif_netlink_parms(): no params data found [ 65.283029][ T4307] team0: Port device team_slave_1 added [ 65.321153][ T4312] team0: Port device team_slave_0 added [ 65.386004][ T4301] device hsr_slave_0 entered promiscuous mode [ 65.423736][ T4301] device hsr_slave_1 entered promiscuous mode [ 65.473480][ T4301] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.475997][ T4301] Cannot create hsr debugfs directory [ 65.484097][ T4312] team0: Port device team_slave_1 added [ 65.488651][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.490638][ T4307] 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 1560 would solve the problem. [ 65.498052][ T4307] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.533743][ T4307] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.535717][ T4307] 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 1560 would solve the problem. [ 65.542534][ T4307] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.578860][ T4297] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.580911][ T4297] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.584102][ T4297] device bridge_slave_0 entered promiscuous mode [ 65.589520][ T4297] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.591550][ T4297] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.595805][ T4297] device bridge_slave_1 entered promiscuous mode [ 65.598715][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 65.600619][ T4312] 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 1560 would solve the problem. [ 65.607875][ T4312] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 65.612801][ T4312] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 65.615192][ T4312] 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 1560 would solve the problem. [ 65.622280][ T4312] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.684886][ T4297] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.755368][ T4307] device hsr_slave_0 entered promiscuous mode [ 65.783719][ T4307] device hsr_slave_1 entered promiscuous mode [ 65.823341][ T4307] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.825491][ T4307] Cannot create hsr debugfs directory [ 65.865118][ T4312] device hsr_slave_0 entered promiscuous mode [ 65.903752][ T4312] device hsr_slave_1 entered promiscuous mode [ 65.943428][ T4312] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.945604][ T4312] Cannot create hsr debugfs directory [ 65.948663][ T4297] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.047442][ T4297] team0: Port device team_slave_0 added [ 66.051068][ T4297] team0: Port device team_slave_1 added [ 66.113467][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 66.115440][ T4297] 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 1560 would solve the problem. [ 66.122611][ T4297] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 66.188614][ T4297] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 66.190545][ T4297] 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 1560 would solve the problem. [ 66.201044][ T4297] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 66.374021][ T3322] Bluetooth: hci4: command 0x0409 tx timeout [ 66.374330][ T4024] Bluetooth: hci3: command 0x0409 tx timeout [ 66.376178][ T3322] Bluetooth: hci0: command 0x0409 tx timeout [ 66.377973][ T4024] Bluetooth: hci2: command 0x0409 tx timeout [ 66.380824][ T4024] Bluetooth: hci1: command 0x0409 tx timeout [ 66.386325][ T4297] device hsr_slave_0 entered promiscuous mode [ 66.423609][ T4297] device hsr_slave_1 entered promiscuous mode [ 66.463887][ T4297] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.465958][ T4297] Cannot create hsr debugfs directory [ 66.827811][ T4301] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.865219][ T4301] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.905824][ T4301] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.940361][ T4301] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.015158][ T4312] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.055434][ T4312] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.075979][ T4312] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.134944][ T4312] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.177673][ T4297] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 67.225360][ T4297] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 67.261116][ T4297] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 67.343376][ T4297] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 67.393127][ T4301] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.403044][ T4307] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 67.472777][ T4301] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.476822][ T4307] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 67.516831][ T4307] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 67.585618][ T4307] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 67.623569][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.626102][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.648331][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.651288][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.661179][ T148] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.663152][ T148] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.666783][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.669923][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.672616][ T148] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.674614][ T148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.703081][ T4302] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.751384][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.754865][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.764790][ T4302] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 67.795309][ T4302] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 67.873572][ T4302] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 67.906277][ T4312] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.910845][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.915063][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.920595][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.924567][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.945878][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.948885][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.951805][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.957485][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.980198][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.982789][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.005994][ T4312] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.008045][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.011557][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.028131][ T4297] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.037216][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.043880][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.046918][ T153] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.048886][ T153] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.055462][ T4301] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.072714][ T4297] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.077220][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.079967][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.082721][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.091832][ T153] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.093844][ T153] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.098998][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.101562][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.133006][ T4307] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.146874][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.151179][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.166181][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.169430][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.174593][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.177501][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.181112][ T509] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.183113][ T509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.199385][ T4302] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.226069][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.228702][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.231621][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.235843][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.239394][ T509] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.241359][ T509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.247346][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.250326][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.253802][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.256891][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.259857][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.262953][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.274467][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.277032][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.287163][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.289750][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.292310][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.299511][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.310070][ T4302] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.325043][ T4307] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.335274][ T4297] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.348461][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.351248][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.361200][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.381243][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.384960][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.387801][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.400983][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.405872][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.408974][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.411699][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.421807][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.425036][ T509] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.426979][ T509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.429420][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.432169][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.436316][ T509] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.438278][ T509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.440592][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.444565][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.447132][ T509] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.449002][ T509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.451335][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.453539][ T1535] Bluetooth: hci0: command 0x041b tx timeout [ 68.453581][ T1535] Bluetooth: hci1: command 0x041b tx timeout [ 68.453606][ T1535] Bluetooth: hci2: command 0x041b tx timeout [ 68.453629][ T1535] Bluetooth: hci3: command 0x041b tx timeout [ 68.453651][ T1535] Bluetooth: hci4: command 0x041b tx timeout [ 68.466627][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.472019][ T509] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.474152][ T509] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.477229][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.479854][ T509] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.485986][ T4312] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.530164][ T4301] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.545454][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.548406][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.551322][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.561080][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.574377][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.577152][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.580006][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.597845][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.600024][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.602110][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.612011][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.616694][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.619501][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.622409][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.626307][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.629076][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.658042][ T4307] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.661712][ T4307] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.676209][ T4302] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.679075][ T4302] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.685938][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.688603][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.691415][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.702467][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.706828][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.709683][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.712430][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.725294][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.728654][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.731486][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.782963][ T4312] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.800102][ T4297] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.807575][ T4301] device veth0_vlan entered promiscuous mode [ 68.813362][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.815843][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.817940][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.820056][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.822165][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.827366][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.833742][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.844767][ T4301] device veth1_vlan entered promiscuous mode [ 68.860823][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.864773][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.867405][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.869967][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.892375][ T4301] device veth0_macvtap entered promiscuous mode [ 68.903027][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.906220][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.909782][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.912623][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.919130][ T4301] device veth1_macvtap entered promiscuous mode [ 68.929997][ T4312] device veth0_vlan entered promiscuous mode [ 68.938227][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.940833][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.944769][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.947498][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.964644][ T4312] device veth1_vlan entered promiscuous mode [ 68.979079][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.982146][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.992322][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.999343][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.003951][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.021410][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.025668][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.046249][ T4301] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.051175][ T4301] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.080149][ T4301] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.082494][ T4301] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.085266][ T4301] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.111632][ T4302] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.121378][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.124454][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.127388][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.129598][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.136973][ T4312] device veth0_macvtap entered promiscuous mode [ 69.140439][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.143107][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.172371][ T4307] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.176263][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.178869][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.180911][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.206831][ T4312] device veth1_macvtap entered promiscuous mode [ 69.233026][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.236532][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.239222][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.278004][ T4302] device veth0_vlan entered promiscuous mode [ 69.287123][ T4312] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.290207][ T4312] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.299497][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.313301][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.319791][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.322543][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.326588][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.329286][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.332033][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.336426][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.339126][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.359126][ T4302] device veth1_vlan entered promiscuous mode [ 69.374514][ T4312] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.379393][ T4312] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.388999][ T4312] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.402107][ T4307] device veth0_vlan entered promiscuous mode [ 69.410703][ T4297] device veth0_vlan entered promiscuous mode [ 69.416728][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.419266][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.421707][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.432083][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.436891][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.439640][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.442387][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.450717][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.455072][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.457746][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.470897][ T4302] device veth0_macvtap entered promiscuous mode [ 69.478079][ T4312] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.480475][ T4312] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.482748][ T4312] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.487573][ T4312] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.498992][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.501633][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.507252][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.509762][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.512189][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.519995][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.529601][ T4302] device veth1_macvtap entered promiscuous mode [ 69.536324][ T4307] device veth1_vlan entered promiscuous mode [ 69.544879][ T4517] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.547133][ T4517] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.560804][ T4297] device veth1_vlan entered promiscuous mode [ 69.569862][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.572613][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.576770][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.583831][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.588817][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.591634][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.650891][ T4302] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.655933][ T2055] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.657881][ T2055] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.670553][ T4302] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.674579][ T4302] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.677434][ T4302] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.681481][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.706152][ T4517] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.708444][ T4517] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.713811][ T4307] device veth0_macvtap entered promiscuous mode [ 69.718392][ T4307] device veth1_macvtap entered promiscuous mode [ 69.725089][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.728780][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.731375][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.744482][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.749670][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.758496][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.761448][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.772406][ T4302] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.776012][ T4302] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.778719][ T4302] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.781744][ T4302] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.786340][ T4302] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.817990][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.820788][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 69.825085][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 69.828815][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.831534][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.857075][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.859979][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.862661][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.867535][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.870181][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.872986][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.878130][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.881707][ T4297] device veth0_macvtap entered promiscuous mode [ 69.890419][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.892726][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.897528][ T4302] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.899926][ T4302] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.902328][ T4302] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.912380][ T4302] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.923850][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.930947][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.934375][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.942259][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.949615][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.952430][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.956961][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.959825][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.962554][ T4307] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.968386][ T4307] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.972448][ T4307] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.977951][ T4297] device veth1_macvtap entered promiscuous mode [ 70.004735][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 70.007465][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.010207][ T153] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.022484][ T4307] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.024171][ T4557] block nbd0: shutting down sockets [ 70.026992][ T4307] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.029404][ T4307] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.031611][ T4307] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.060845][ T153] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.063303][ T153] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.071386][ T4557] FAULT_INJECTION: forcing a failure. [ 70.071386][ T4557] name failslab, interval 1, probability 0, space 0, times 1 [ 70.077994][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.099863][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 70.102794][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.121832][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 70.126796][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.127792][ T4557] CPU: 0 PID: 4557 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 70.129419][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 70.131789][ T4557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.137302][ T4557] Call trace: [ 70.138229][ T4557] dump_backtrace+0x0/0x43c [ 70.139461][ T4557] show_stack+0x2c/0x3c [ 70.139727][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.140619][ T4557] __dump_stack+0x30/0x40 [ 70.144505][ T4557] dump_stack_lvl+0xf8/0x160 [ 70.144818][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 70.145768][ T4557] dump_stack+0x1c/0x5c [ 70.149072][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.149781][ T4557] should_fail+0x3c0/0x51c [ 70.153597][ T4557] __should_failslab+0xbc/0x10c [ 70.154677][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 70.154921][ T4557] should_failslab+0x10/0x28 [ 70.154937][ T4557] slab_pre_alloc_hook+0x64/0xec [ 70.154946][ T4557] __kmalloc_node+0xb8/0x520 [ 70.154955][ T4557] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.162061][ T4557] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.163683][ T4557] nbd_start_device+0x14c/0xb40 [ 70.164967][ T4557] nbd_ioctl+0x514/0xc50 [ 70.166114][ T4557] blkdev_ioctl+0x5f8/0xbb8 [ 70.167334][ T4557] block_ioctl+0xa4/0x118 [ 70.168518][ T4557] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.169918][ T4557] invoke_syscall+0x98/0x2b8 [ 70.171209][ T4557] el0_svc_common+0x138/0x258 [ 70.172534][ T4557] do_el0_svc+0x58/0x14c [ 70.173775][ T4557] el0_svc+0x78/0x1e0 [ 70.174915][ T4557] el0t_64_sync_handler+0xcc/0xe4 [ 70.176292][ T4557] el0t_64_sync+0x1a0/0x1a4 [ 70.203124][ T4557] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.203284][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 70.207878][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 70.212297][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.216157][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.222253][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.234621][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.239769][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.251830][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.255759][ T4297] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.258735][ T4297] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.263014][ T4297] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.303482][ T4517] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.305920][ T4517] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 1970/01/01 00:01:10 executed programs: 5 [ 70.330113][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.333071][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.341449][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.344386][ T4569] block nbd1: Device being setup by another task [ 70.346897][ T4564] block nbd1: shutting down sockets [ 70.350643][ T4565] FAULT_INJECTION: forcing a failure. [ 70.350643][ T4565] name failslab, interval 1, probability 0, space 0, times 0 [ 70.355288][ T4565] CPU: 1 PID: 4565 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 70.357628][ T4565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.360445][ T4565] Call trace: [ 70.361352][ T4565] dump_backtrace+0x0/0x43c [ 70.362548][ T4565] show_stack+0x2c/0x3c [ 70.363646][ T4565] __dump_stack+0x30/0x40 [ 70.364841][ T4565] dump_stack_lvl+0xf8/0x160 [ 70.366039][ T4565] dump_stack+0x1c/0x5c [ 70.367146][ T4565] should_fail+0x3c0/0x51c [ 70.368388][ T4565] __should_failslab+0xbc/0x10c [ 70.369778][ T4565] should_failslab+0x10/0x28 [ 70.370980][ T4565] slab_pre_alloc_hook+0x64/0xec [ 70.372292][ T4565] kmem_cache_alloc+0x94/0x3e4 [ 70.373584][ T4565] new_inode_pseudo+0x10c/0x1fc [ 70.374879][ T4565] new_inode+0x38/0x174 [ 70.376035][ T4565] debugfs_create_dir+0xec/0x3f4 [ 70.377354][ T4565] nbd_start_device+0x3c8/0xb40 [ 70.378664][ T4565] nbd_ioctl+0x514/0xc50 [ 70.379777][ T4565] blkdev_ioctl+0x5f8/0xbb8 [ 70.380997][ T4565] block_ioctl+0xa4/0x118 [ 70.382197][ T4565] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.383550][ T4565] invoke_syscall+0x98/0x2b8 [ 70.384766][ T4565] el0_svc_common+0x138/0x258 [ 70.386015][ T4565] do_el0_svc+0x58/0x14c [ 70.387146][ T4565] el0_svc+0x78/0x1e0 [ 70.388215][ T4565] el0t_64_sync_handler+0xcc/0xe4 [ 70.389575][ T4565] el0t_64_sync+0x1a0/0x1a4 [ 70.409504][ T4297] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.411878][ T4297] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.420691][ T4297] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.423148][ T4297] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.429510][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.433126][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.442019][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.449003][ T4565] debugfs: out of free dentries, can not create directory 'nbd1' [ 70.452637][ T4565] block nbd1: Failed to create debugfs dir for 'nbd1' [ 70.458670][ T4572] block nbd0: shutting down sockets [ 70.532833][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.538093][ T4433] Bluetooth: hci4: command 0x040f tx timeout [ 70.539784][ T4433] Bluetooth: hci2: command 0x040f tx timeout [ 70.541554][ T4433] Bluetooth: hci0: command 0x040f tx timeout [ 70.548092][ T4572] FAULT_INJECTION: forcing a failure. [ 70.548092][ T4572] name failslab, interval 1, probability 0, space 0, times 0 [ 70.553660][ T4047] Bluetooth: hci3: command 0x040f tx timeout [ 70.555594][ T4047] Bluetooth: hci1: command 0x040f tx timeout [ 70.557991][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.566978][ T4572] CPU: 0 PID: 4572 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 70.569434][ T4572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.572261][ T4572] Call trace: [ 70.573100][ T4572] dump_backtrace+0x0/0x43c [ 70.574336][ T4572] show_stack+0x2c/0x3c [ 70.575502][ T4572] __dump_stack+0x30/0x40 [ 70.576664][ T4572] dump_stack_lvl+0xf8/0x160 [ 70.577958][ T4572] dump_stack+0x1c/0x5c [ 70.579071][ T4572] should_fail+0x3c0/0x51c [ 70.580300][ T4572] __should_failslab+0xbc/0x10c [ 70.581628][ T4572] should_failslab+0x10/0x28 [ 70.582881][ T4572] slab_pre_alloc_hook+0x64/0xec [ 70.584194][ T4572] __kmalloc_node+0xb8/0x520 [ 70.585424][ T4572] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.586878][ T4572] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.588452][ T4572] nbd_start_device+0x14c/0xb40 [ 70.589735][ T4572] nbd_ioctl+0x514/0xc50 [ 70.590904][ T4572] blkdev_ioctl+0x5f8/0xbb8 [ 70.592083][ T4572] block_ioctl+0xa4/0x118 [ 70.593351][ T4572] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.594667][ T4572] invoke_syscall+0x98/0x2b8 [ 70.595867][ T4572] el0_svc_common+0x138/0x258 [ 70.597088][ T4572] do_el0_svc+0x58/0x14c [ 70.598252][ T4572] el0_svc+0x78/0x1e0 [ 70.599335][ T4572] el0t_64_sync_handler+0xcc/0xe4 [ 70.600652][ T4572] el0t_64_sync+0x1a0/0x1a4 [ 70.640524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.670125][ T4572] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.672647][ T4581] block nbd2: shutting down sockets [ 70.678625][ T4584] block nbd1: shutting down sockets [ 70.694409][ T4517] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.696713][ T4517] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.710465][ T4581] FAULT_INJECTION: forcing a failure. [ 70.710465][ T4581] name failslab, interval 1, probability 0, space 0, times 0 [ 70.723668][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.725879][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.739305][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.741451][ T4581] CPU: 0 PID: 4581 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 70.743803][ T4581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.745844][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.746494][ T4581] Call trace: [ 70.746501][ T4581] dump_backtrace+0x0/0x43c [ 70.746518][ T4581] show_stack+0x2c/0x3c [ 70.746528][ T4581] __dump_stack+0x30/0x40 [ 70.746537][ T4581] dump_stack_lvl+0xf8/0x160 [ 70.754142][ T4581] dump_stack+0x1c/0x5c [ 70.755265][ T4581] should_fail+0x3c0/0x51c [ 70.756454][ T4581] __should_failslab+0xbc/0x10c [ 70.757771][ T4581] should_failslab+0x10/0x28 [ 70.759008][ T4581] slab_pre_alloc_hook+0x64/0xec [ 70.760376][ T4581] __kmalloc_node+0xb8/0x520 [ 70.761596][ T4581] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.763078][ T4581] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.764606][ T4581] nbd_start_device+0x14c/0xb40 [ 70.765946][ T4581] nbd_ioctl+0x514/0xc50 [ 70.767101][ T4581] blkdev_ioctl+0x5f8/0xbb8 [ 70.768347][ T4581] block_ioctl+0xa4/0x118 [ 70.769510][ T4581] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.770880][ T4581] invoke_syscall+0x98/0x2b8 [ 70.772151][ T4581] el0_svc_common+0x138/0x258 [ 70.773448][ T4581] do_el0_svc+0x58/0x14c [ 70.774604][ T4581] el0_svc+0x78/0x1e0 [ 70.775669][ T4581] el0t_64_sync_handler+0xcc/0xe4 [ 70.777046][ T4581] el0t_64_sync+0x1a0/0x1a4 [ 70.807842][ T4588] FAULT_INJECTION: forcing a failure. [ 70.807842][ T4588] name failslab, interval 1, probability 0, space 0, times 0 [ 70.825466][ T4588] CPU: 0 PID: 4588 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 70.827792][ T4588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.830581][ T4588] Call trace: [ 70.831443][ T4588] dump_backtrace+0x0/0x43c [ 70.832621][ T4588] show_stack+0x2c/0x3c [ 70.833770][ T4588] __dump_stack+0x30/0x40 [ 70.834913][ T4588] dump_stack_lvl+0xf8/0x160 [ 70.836180][ T4588] dump_stack+0x1c/0x5c [ 70.837279][ T4588] should_fail+0x3c0/0x51c [ 70.838485][ T4588] __should_failslab+0xbc/0x10c [ 70.839772][ T4588] should_failslab+0x10/0x28 [ 70.840973][ T4588] slab_pre_alloc_hook+0x64/0xec [ 70.842359][ T4588] __kmalloc_node+0xb8/0x520 [ 70.843581][ T4588] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.844992][ T4588] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.846565][ T4588] nbd_start_device+0x14c/0xb40 [ 70.847913][ T4588] nbd_ioctl+0x514/0xc50 [ 70.849073][ T4588] blkdev_ioctl+0x5f8/0xbb8 [ 70.850305][ T4588] block_ioctl+0xa4/0x118 [ 70.851521][ T4588] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.852847][ T4588] invoke_syscall+0x98/0x2b8 [ 70.854123][ T4588] el0_svc_common+0x138/0x258 [ 70.855386][ T4588] do_el0_svc+0x58/0x14c [ 70.856533][ T4588] el0_svc+0x78/0x1e0 [ 70.857660][ T4588] el0t_64_sync_handler+0xcc/0xe4 [ 70.859041][ T4588] el0t_64_sync+0x1a0/0x1a4 [ 70.866769][ T4581] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.895016][ T153] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.899108][ T153] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.902807][ T4588] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.910995][ T4517] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.916192][ T4595] block nbd0: shutting down sockets [ 70.954215][ T4596] block nbd3: shutting down sockets [ 70.957358][ T4591] FAULT_INJECTION: forcing a failure. [ 70.957358][ T4591] name failslab, interval 1, probability 0, space 0, times 0 [ 70.960724][ T4591] CPU: 1 PID: 4591 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 70.962917][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 70.965628][ T4591] Call trace: [ 70.966517][ T4591] dump_backtrace+0x0/0x43c [ 70.967756][ T4591] show_stack+0x2c/0x3c [ 70.968868][ T4591] __dump_stack+0x30/0x40 [ 70.969976][ T4591] dump_stack_lvl+0xf8/0x160 [ 70.971169][ T4591] dump_stack+0x1c/0x5c [ 70.972276][ T4591] should_fail+0x3c0/0x51c [ 70.973459][ T4591] __should_failslab+0xbc/0x10c [ 70.974781][ T4591] should_failslab+0x10/0x28 [ 70.975972][ T4591] slab_pre_alloc_hook+0x64/0xec [ 70.977308][ T4591] __kmalloc_node+0xb8/0x520 [ 70.978544][ T4591] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.979981][ T4591] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.981545][ T4591] nbd_start_device+0x14c/0xb40 [ 70.982815][ T4591] nbd_ioctl+0x514/0xc50 [ 70.983950][ T4591] blkdev_ioctl+0x5f8/0xbb8 [ 70.985243][ T4591] block_ioctl+0xa4/0x118 [ 70.986410][ T4591] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.987731][ T4591] invoke_syscall+0x98/0x2b8 [ 70.989029][ T4591] el0_svc_common+0x138/0x258 [ 70.990285][ T4591] do_el0_svc+0x58/0x14c [ 70.991446][ T4591] el0_svc+0x78/0x1e0 [ 70.992504][ T4591] el0t_64_sync_handler+0xcc/0xe4 [ 70.993916][ T4591] el0t_64_sync+0x1a0/0x1a4 [ 71.003430][ T4591] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.059400][ T4596] FAULT_INJECTION: forcing a failure. [ 71.059400][ T4596] name failslab, interval 1, probability 0, space 0, times 0 [ 71.069476][ T4596] CPU: 0 PID: 4596 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 71.071951][ T4596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.074667][ T4596] Call trace: [ 71.075575][ T4596] dump_backtrace+0x0/0x43c [ 71.076812][ T4596] show_stack+0x2c/0x3c [ 71.077922][ T4596] __dump_stack+0x30/0x40 [ 71.079063][ T4596] dump_stack_lvl+0xf8/0x160 [ 71.080347][ T4596] dump_stack+0x1c/0x5c [ 71.081466][ T4596] should_fail+0x3c0/0x51c [ 71.082623][ T4596] __should_failslab+0xbc/0x10c [ 71.083979][ T4596] should_failslab+0x10/0x28 [ 71.085218][ T4596] slab_pre_alloc_hook+0x64/0xec [ 71.086516][ T4596] __kmalloc_node+0xb8/0x520 [ 71.087773][ T4596] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.089206][ T4596] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.090741][ T4596] nbd_start_device+0x14c/0xb40 [ 71.092017][ T4596] nbd_ioctl+0x514/0xc50 [ 71.093173][ T4596] blkdev_ioctl+0x5f8/0xbb8 [ 71.094350][ T4596] block_ioctl+0xa4/0x118 [ 71.095568][ T4596] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.096915][ T4596] invoke_syscall+0x98/0x2b8 [ 71.098126][ T4596] el0_svc_common+0x138/0x258 [ 71.099355][ T4596] do_el0_svc+0x58/0x14c [ 71.100502][ T4596] el0_svc+0x78/0x1e0 [ 71.101561][ T4596] el0t_64_sync_handler+0xcc/0xe4 [ 71.102923][ T4596] el0t_64_sync+0x1a0/0x1a4 [ 71.121649][ T4596] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.133601][ T4610] block nbd4: shutting down sockets [ 71.163645][ T4611] block nbd1: shutting down sockets [ 71.173227][ T4612] block nbd2: shutting down sockets [ 71.194939][ T4605] FAULT_INJECTION: forcing a failure. [ 71.194939][ T4605] name failslab, interval 1, probability 0, space 0, times 0 [ 71.200706][ T4605] CPU: 1 PID: 4605 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 71.203048][ T4605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.205662][ T4605] Call trace: [ 71.206542][ T4605] dump_backtrace+0x0/0x43c [ 71.207754][ T4605] show_stack+0x2c/0x3c [ 71.208903][ T4605] __dump_stack+0x30/0x40 [ 71.210057][ T4605] dump_stack_lvl+0xf8/0x160 [ 71.211339][ T4605] dump_stack+0x1c/0x5c [ 71.212420][ T4605] should_fail+0x3c0/0x51c [ 71.213601][ T4605] __should_failslab+0xbc/0x10c [ 71.214921][ T4605] should_failslab+0x10/0x28 [ 71.216141][ T4605] slab_pre_alloc_hook+0x64/0xec [ 71.217471][ T4605] __kmalloc_node+0xb8/0x520 [ 71.218657][ T4605] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.220086][ T4605] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.221607][ T4605] nbd_start_device+0x14c/0xb40 [ 71.222919][ T4605] nbd_ioctl+0x514/0xc50 [ 71.224064][ T4605] blkdev_ioctl+0x5f8/0xbb8 [ 71.225279][ T4605] block_ioctl+0xa4/0x118 [ 71.226439][ T4605] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.227770][ T4605] invoke_syscall+0x98/0x2b8 [ 71.228984][ T4605] el0_svc_common+0x138/0x258 [ 71.230237][ T4605] do_el0_svc+0x58/0x14c [ 71.231389][ T4605] el0_svc+0x78/0x1e0 [ 71.232471][ T4605] el0t_64_sync_handler+0xcc/0xe4 [ 71.233806][ T4605] el0t_64_sync+0x1a0/0x1a4 [ 71.249221][ T4604] FAULT_INJECTION: forcing a failure. [ 71.249221][ T4604] name failslab, interval 1, probability 0, space 0, times 0 [ 71.249951][ T4602] FAULT_INJECTION: forcing a failure. [ 71.249951][ T4602] name failslab, interval 1, probability 0, space 0, times 0 [ 71.252624][ T4604] CPU: 0 PID: 4604 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 71.252638][ T4604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.252645][ T4604] Call trace: [ 71.252648][ T4604] dump_backtrace+0x0/0x43c [ 71.263281][ T4604] show_stack+0x2c/0x3c [ 71.264438][ T4604] __dump_stack+0x30/0x40 [ 71.265625][ T4604] dump_stack_lvl+0xf8/0x160 [ 71.266846][ T4604] dump_stack+0x1c/0x5c [ 71.268000][ T4604] should_fail+0x3c0/0x51c [ 71.269181][ T4604] __should_failslab+0xbc/0x10c [ 71.270560][ T4604] should_failslab+0x10/0x28 [ 71.271820][ T4604] slab_pre_alloc_hook+0x64/0xec [ 71.273170][ T4604] __kmalloc_node+0xb8/0x520 [ 71.274421][ T4604] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.276008][ T4604] nbd_start_device+0x14c/0xb40 [ 71.277347][ T4604] nbd_ioctl+0x514/0xc50 [ 71.278491][ T4604] blkdev_ioctl+0x5f8/0xbb8 [ 71.279662][ T4604] block_ioctl+0xa4/0x118 [ 71.280848][ T4604] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.282174][ T4604] invoke_syscall+0x98/0x2b8 [ 71.283429][ T4604] el0_svc_common+0x138/0x258 [ 71.284743][ T4604] do_el0_svc+0x58/0x14c [ 71.285902][ T4604] el0_svc+0x78/0x1e0 [ 71.287003][ T4604] el0t_64_sync_handler+0xcc/0xe4 [ 71.288370][ T4604] el0t_64_sync+0x1a0/0x1a4 [ 71.289588][ T4602] CPU: 1 PID: 4602 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 71.291923][ T4602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.294657][ T4602] Call trace: [ 71.295519][ T4602] dump_backtrace+0x0/0x43c [ 71.296709][ T4602] show_stack+0x2c/0x3c [ 71.297836][ T4602] __dump_stack+0x30/0x40 [ 71.298955][ T4602] dump_stack_lvl+0xf8/0x160 [ 71.300175][ T4602] dump_stack+0x1c/0x5c [ 71.301327][ T4602] should_fail+0x3c0/0x51c [ 71.302499][ T4602] __should_failslab+0xbc/0x10c [ 71.303750][ T4602] should_failslab+0x10/0x28 [ 71.304943][ T4602] slab_pre_alloc_hook+0x64/0xec [ 71.306262][ T4602] __kmalloc_node+0xb8/0x520 [ 71.307510][ T4602] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.309023][ T4602] nbd_start_device+0x14c/0xb40 [ 71.310301][ T4602] nbd_ioctl+0x514/0xc50 [ 71.311416][ T4602] blkdev_ioctl+0x5f8/0xbb8 [ 71.312596][ T4602] block_ioctl+0xa4/0x118 [ 71.313749][ T4602] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.315058][ T4602] invoke_syscall+0x98/0x2b8 [ 71.316271][ T4602] el0_svc_common+0x138/0x258 [ 71.317522][ T4602] do_el0_svc+0x58/0x14c [ 71.318660][ T4602] el0_svc+0x78/0x1e0 [ 71.319746][ T4602] el0t_64_sync_handler+0xcc/0xe4 [ 71.321130][ T4602] el0t_64_sync+0x1a0/0x1a4 [ 71.336469][ T4618] block nbd0: shutting down sockets [ 71.350798][ T4605] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.377646][ T4615] FAULT_INJECTION: forcing a failure. [ 71.377646][ T4615] name failslab, interval 1, probability 0, space 0, times 0 [ 71.396522][ T4615] CPU: 1 PID: 4615 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 71.398919][ T4615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.401633][ T4615] Call trace: [ 71.402550][ T4615] dump_backtrace+0x0/0x43c [ 71.404064][ T4615] show_stack+0x2c/0x3c [ 71.405220][ T4615] __dump_stack+0x30/0x40 [ 71.406497][ T4615] dump_stack_lvl+0xf8/0x160 [ 71.407753][ T4615] dump_stack+0x1c/0x5c [ 71.408922][ T4615] should_fail+0x3c0/0x51c [ 71.410120][ T4615] __should_failslab+0xbc/0x10c [ 71.411478][ T4615] should_failslab+0x10/0x28 [ 71.412781][ T4615] slab_pre_alloc_hook+0x64/0xec [ 71.414090][ T4615] __kmalloc_node+0xb8/0x520 [ 71.415391][ T4615] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.416924][ T4615] nbd_start_device+0x14c/0xb40 [ 71.418276][ T4615] nbd_ioctl+0x514/0xc50 [ 71.419459][ T4615] blkdev_ioctl+0x5f8/0xbb8 [ 71.420729][ T4615] block_ioctl+0xa4/0x118 [ 71.421968][ T4615] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.423299][ T4615] invoke_syscall+0x98/0x2b8 [ 71.424582][ T4615] el0_svc_common+0x138/0x258 [ 71.425842][ T4615] do_el0_svc+0x58/0x14c [ 71.427064][ T4615] el0_svc+0x78/0x1e0 [ 71.428164][ T4615] el0t_64_sync_handler+0xcc/0xe4 [ 71.429520][ T4615] el0t_64_sync+0x1a0/0x1a4 [ 71.524229][ T4622] block nbd3: shutting down sockets [ 71.545482][ T4627] block nbd2: shutting down sockets [ 71.549609][ T4628] block nbd4: shutting down sockets [ 71.596853][ T4622] FAULT_INJECTION: forcing a failure. [ 71.596853][ T4622] name failslab, interval 1, probability 0, space 0, times 0 [ 71.600469][ T4622] CPU: 1 PID: 4622 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 71.602741][ T4622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.605528][ T4622] Call trace: [ 71.606409][ T4622] dump_backtrace+0x0/0x43c [ 71.607639][ T4622] show_stack+0x2c/0x3c [ 71.608764][ T4622] __dump_stack+0x30/0x40 [ 71.609930][ T4622] dump_stack_lvl+0xf8/0x160 [ 71.611150][ T4622] dump_stack+0x1c/0x5c [ 71.612269][ T4622] should_fail+0x3c0/0x51c [ 71.613505][ T4622] __should_failslab+0xbc/0x10c [ 71.614839][ T4622] should_failslab+0x10/0x28 [ 71.616125][ T4622] slab_pre_alloc_hook+0x64/0xec [ 71.617469][ T4622] __kmalloc_node+0xb8/0x520 [ 71.618732][ T4622] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.620175][ T4622] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.621786][ T4622] nbd_start_device+0x14c/0xb40 [ 71.623137][ T4622] nbd_ioctl+0x514/0xc50 [ 71.624361][ T4622] blkdev_ioctl+0x5f8/0xbb8 [ 71.625608][ T4622] block_ioctl+0xa4/0x118 [ 71.626786][ T4622] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.628183][ T4622] invoke_syscall+0x98/0x2b8 [ 71.629465][ T4622] el0_svc_common+0x138/0x258 [ 71.630731][ T4622] do_el0_svc+0x58/0x14c [ 71.631917][ T4622] el0_svc+0x78/0x1e0 [ 71.632968][ T4622] el0t_64_sync_handler+0xcc/0xe4 [ 71.634349][ T4622] el0t_64_sync+0x1a0/0x1a4 [ 71.649759][ T4627] FAULT_INJECTION: forcing a failure. [ 71.649759][ T4627] name failslab, interval 1, probability 0, space 0, times 0 [ 71.657727][ T4634] block nbd1: shutting down sockets [ 71.664346][ T4628] FAULT_INJECTION: forcing a failure. [ 71.664346][ T4628] name failslab, interval 1, probability 0, space 0, times 0 [ 71.673813][ T4627] CPU: 1 PID: 4627 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 71.676163][ T4627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.678958][ T4627] Call trace: [ 71.679862][ T4627] dump_backtrace+0x0/0x43c [ 71.681091][ T4627] show_stack+0x2c/0x3c [ 71.682203][ T4627] __dump_stack+0x30/0x40 [ 71.683395][ T4627] dump_stack_lvl+0xf8/0x160 [ 71.684631][ T4627] dump_stack+0x1c/0x5c [ 71.685759][ T4627] should_fail+0x3c0/0x51c [ 71.686981][ T4627] __should_failslab+0xbc/0x10c [ 71.688356][ T4627] should_failslab+0x10/0x28 [ 71.689685][ T4627] slab_pre_alloc_hook+0x64/0xec [ 71.691024][ T4627] __kmalloc_node+0xb8/0x520 [ 71.692347][ T4627] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.693790][ T4627] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.695380][ T4627] nbd_start_device+0x14c/0xb40 [ 71.696738][ T4627] nbd_ioctl+0x514/0xc50 [ 71.697897][ T4627] blkdev_ioctl+0x5f8/0xbb8 [ 71.699144][ T4627] block_ioctl+0xa4/0x118 [ 71.700306][ T4627] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.701766][ T4627] invoke_syscall+0x98/0x2b8 [ 71.703090][ T4627] el0_svc_common+0x138/0x258 [ 71.704397][ T4627] do_el0_svc+0x58/0x14c [ 71.705538][ T4627] el0_svc+0x78/0x1e0 [ 71.706627][ T4627] el0t_64_sync_handler+0xcc/0xe4 [ 71.708048][ T4627] el0t_64_sync+0x1a0/0x1a4 [ 71.710436][ T4628] CPU: 0 PID: 4628 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 71.712789][ T4628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.715504][ T4628] Call trace: [ 71.716374][ T4628] dump_backtrace+0x0/0x43c [ 71.717576][ T4628] show_stack+0x2c/0x3c [ 71.718727][ T4628] __dump_stack+0x30/0x40 [ 71.719873][ T4628] dump_stack_lvl+0xf8/0x160 [ 71.721169][ T4628] dump_stack+0x1c/0x5c [ 71.722357][ T4628] should_fail+0x3c0/0x51c [ 71.723584][ T4628] __should_failslab+0xbc/0x10c [ 71.725014][ T4628] should_failslab+0x10/0x28 [ 71.726258][ T4628] slab_pre_alloc_hook+0x64/0xec [ 71.727668][ T4628] __kmalloc_node+0xb8/0x520 [ 71.728967][ T4628] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.730462][ T4628] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.732004][ T4628] nbd_start_device+0x14c/0xb40 [ 71.733282][ T4622] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.733332][ T4628] nbd_ioctl+0x514/0xc50 [ 71.736288][ T4628] blkdev_ioctl+0x5f8/0xbb8 [ 71.737497][ T4628] block_ioctl+0xa4/0x118 [ 71.738689][ T4628] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.740035][ T4628] invoke_syscall+0x98/0x2b8 [ 71.741315][ T4628] el0_svc_common+0x138/0x258 [ 71.742072][ T4627] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.742578][ T4628] do_el0_svc+0x58/0x14c [ 71.742592][ T4628] el0_svc+0x78/0x1e0 [ 71.742602][ T4628] el0t_64_sync_handler+0xcc/0xe4 [ 71.747990][ T4628] el0t_64_sync+0x1a0/0x1a4 [ 71.770127][ T4628] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.788816][ T4633] FAULT_INJECTION: forcing a failure. [ 71.788816][ T4633] name failslab, interval 1, probability 0, space 0, times 0 [ 71.813685][ T4633] CPU: 1 PID: 4633 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 71.816095][ T4633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.818789][ T4633] Call trace: [ 71.819679][ T4633] dump_backtrace+0x0/0x43c [ 71.820941][ T4633] show_stack+0x2c/0x3c [ 71.822250][ T4633] __dump_stack+0x30/0x40 [ 71.823423][ T4633] dump_stack_lvl+0xf8/0x160 [ 71.824679][ T4633] dump_stack+0x1c/0x5c [ 71.825822][ T4633] should_fail+0x3c0/0x51c [ 71.827037][ T4633] __should_failslab+0xbc/0x10c [ 71.828413][ T4633] should_failslab+0x10/0x28 [ 71.829704][ T4633] slab_pre_alloc_hook+0x64/0xec [ 71.831087][ T4633] __kmalloc_node+0xb8/0x520 [ 71.832349][ T4633] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.833913][ T4633] nbd_start_device+0x14c/0xb40 [ 71.835205][ T4633] nbd_ioctl+0x514/0xc50 [ 71.836364][ T4633] blkdev_ioctl+0x5f8/0xbb8 [ 71.837595][ T4633] block_ioctl+0xa4/0x118 [ 71.838840][ T4633] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.840214][ T4633] invoke_syscall+0x98/0x2b8 [ 71.841514][ T4633] el0_svc_common+0x138/0x258 [ 71.842824][ T4633] do_el0_svc+0x58/0x14c [ 71.844073][ T4633] el0_svc+0x78/0x1e0 [ 71.845173][ T4633] el0t_64_sync_handler+0xcc/0xe4 [ 71.846525][ T4633] el0t_64_sync+0x1a0/0x1a4 [ 71.875915][ T4643] block nbd0: shutting down sockets [ 71.940308][ T4643] FAULT_INJECTION: forcing a failure. [ 71.940308][ T4643] name failslab, interval 1, probability 0, space 0, times 0 [ 71.945778][ T4650] block nbd3: shutting down sockets [ 71.952154][ T4643] CPU: 1 PID: 4643 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 71.954131][ T4651] block nbd2: shutting down sockets [ 71.954542][ T4643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 71.958751][ T4643] Call trace: [ 71.959637][ T4643] dump_backtrace+0x0/0x43c [ 71.960886][ T4643] show_stack+0x2c/0x3c [ 71.962049][ T4643] __dump_stack+0x30/0x40 [ 71.963191][ T4643] dump_stack_lvl+0xf8/0x160 [ 71.964425][ T4643] dump_stack+0x1c/0x5c [ 71.965549][ T4643] should_fail+0x3c0/0x51c [ 71.966799][ T4643] __should_failslab+0xbc/0x10c [ 71.968118][ T4643] should_failslab+0x10/0x28 [ 71.969475][ T4643] slab_pre_alloc_hook+0x64/0xec [ 71.970855][ T4643] __kmalloc_node+0xb8/0x520 [ 71.972071][ T4643] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.973589][ T4643] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.975148][ T4643] nbd_start_device+0x14c/0xb40 [ 71.976460][ T4643] nbd_ioctl+0x514/0xc50 [ 71.977611][ T4643] blkdev_ioctl+0x5f8/0xbb8 [ 71.978853][ T4643] block_ioctl+0xa4/0x118 [ 71.980012][ T4643] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.981368][ T4643] invoke_syscall+0x98/0x2b8 [ 71.982619][ T4643] el0_svc_common+0x138/0x258 [ 71.983911][ T4643] do_el0_svc+0x58/0x14c [ 71.985086][ T4643] el0_svc+0x78/0x1e0 [ 71.986159][ T4643] el0t_64_sync_handler+0xcc/0xe4 [ 71.987603][ T4643] el0t_64_sync+0x1a0/0x1a4 [ 72.032596][ T4650] FAULT_INJECTION: forcing a failure. [ 72.032596][ T4650] name failslab, interval 1, probability 0, space 0, times 0 [ 72.060838][ T4650] CPU: 1 PID: 4650 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 72.063192][ T4650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.065932][ T4650] Call trace: [ 72.066823][ T4650] dump_backtrace+0x0/0x43c [ 72.067689][ T4651] FAULT_INJECTION: forcing a failure. [ 72.067689][ T4651] name failslab, interval 1, probability 0, space 0, times 0 [ 72.068035][ T4650] show_stack+0x2c/0x3c [ 72.072782][ T4650] __dump_stack+0x30/0x40 [ 72.073977][ T4650] dump_stack_lvl+0xf8/0x160 [ 72.075210][ T4650] dump_stack+0x1c/0x5c [ 72.076326][ T4650] should_fail+0x3c0/0x51c [ 72.077548][ T4650] __should_failslab+0xbc/0x10c [ 72.078856][ T4650] should_failslab+0x10/0x28 [ 72.080173][ T4650] slab_pre_alloc_hook+0x64/0xec [ 72.081549][ T4650] __kmalloc_node+0xb8/0x520 [ 72.082750][ T4650] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 72.084325][ T4650] nbd_start_device+0x14c/0xb40 [ 72.085700][ T4650] nbd_ioctl+0x514/0xc50 [ 72.086869][ T4650] blkdev_ioctl+0x5f8/0xbb8 [ 72.088153][ T4650] block_ioctl+0xa4/0x118 [ 72.089324][ T4650] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.090636][ T4650] invoke_syscall+0x98/0x2b8 [ 72.091900][ T4650] el0_svc_common+0x138/0x258 [ 72.093210][ T4650] do_el0_svc+0x58/0x14c [ 72.094377][ T4650] el0_svc+0x78/0x1e0 [ 72.095456][ T4650] el0t_64_sync_handler+0xcc/0xe4 [ 72.096858][ T4650] el0t_64_sync+0x1a0/0x1a4 [ 72.098068][ T4651] CPU: 0 PID: 4651 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 72.100432][ T4651] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.103145][ T4651] Call trace: [ 72.104054][ T4651] dump_backtrace+0x0/0x43c [ 72.105267][ T4651] show_stack+0x2c/0x3c [ 72.106431][ T4651] __dump_stack+0x30/0x40 [ 72.107564][ T4651] dump_stack_lvl+0xf8/0x160 [ 72.108811][ T4651] dump_stack+0x1c/0x5c [ 72.109929][ T4651] should_fail+0x3c0/0x51c [ 72.111147][ T4651] __should_failslab+0xbc/0x10c [ 72.112487][ T4651] should_failslab+0x10/0x28 [ 72.112832][ T4643] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.113770][ T4651] slab_pre_alloc_hook+0x64/0xec [ 72.113785][ T4651] __kmalloc_node+0xb8/0x520 [ 72.113794][ T4651] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.113805][ T4651] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.113815][ T4651] nbd_start_device+0x14c/0xb40 [ 72.113825][ T4651] nbd_ioctl+0x514/0xc50 [ 72.113834][ T4651] blkdev_ioctl+0x5f8/0xbb8 [ 72.113842][ T4651] block_ioctl+0xa4/0x118 [ 72.113851][ T4651] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.113862][ T4651] invoke_syscall+0x98/0x2b8 [ 72.113872][ T4651] el0_svc_common+0x138/0x258 [ 72.113881][ T4651] do_el0_svc+0x58/0x14c [ 72.113890][ T4651] el0_svc+0x78/0x1e0 [ 72.113899][ T4651] el0t_64_sync_handler+0xcc/0xe4 [ 72.113908][ T4651] el0t_64_sync+0x1a0/0x1a4 [ 72.116380][ T4651] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.136914][ T4663] block nbd1: shutting down sockets [ 72.138664][ T4658] block nbd4: shutting down sockets [ 72.205739][ T4655] FAULT_INJECTION: forcing a failure. [ 72.205739][ T4655] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 72.211311][ T4657] FAULT_INJECTION: forcing a failure. [ 72.211311][ T4657] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 72.230980][ T4655] CPU: 0 PID: 4655 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 72.233454][ T4655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.236238][ T4655] Call trace: [ 72.237115][ T4655] dump_backtrace+0x0/0x43c [ 72.238349][ T4655] show_stack+0x2c/0x3c [ 72.239450][ T4655] __dump_stack+0x30/0x40 [ 72.240656][ T4655] dump_stack_lvl+0xf8/0x160 [ 72.241884][ T4655] dump_stack+0x1c/0x5c [ 72.243029][ T4655] should_fail+0x3c0/0x51c [ 72.244203][ T4655] should_fail_alloc_page+0x74/0xa8 [ 72.245636][ T4655] prepare_alloc_pages+0x160/0x460 [ 72.246971][ T4655] __alloc_pages+0x108/0x470 [ 72.248223][ T4655] alloc_pages+0x34c/0x5c0 [ 72.249407][ T4655] new_slab+0xe0/0x55c [ 72.250507][ T4655] ___slab_alloc+0x6c0/0xda8 [ 72.251749][ T4655] __slab_alloc+0x68/0xc0 [ 72.252933][ T4655] __kmalloc_node+0x310/0x520 [ 72.254210][ T4655] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 72.255796][ T4655] nbd_start_device+0x14c/0xb40 [ 72.257123][ T4655] nbd_ioctl+0x514/0xc50 [ 72.258276][ T4655] blkdev_ioctl+0x5f8/0xbb8 [ 72.259476][ T4655] block_ioctl+0xa4/0x118 [ 72.260620][ T4655] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.261979][ T4655] invoke_syscall+0x98/0x2b8 [ 72.263289][ T4655] el0_svc_common+0x138/0x258 [ 72.264545][ T4655] do_el0_svc+0x58/0x14c [ 72.265726][ T4655] el0_svc+0x78/0x1e0 [ 72.266845][ T4655] el0t_64_sync_handler+0xcc/0xe4 [ 72.268270][ T4655] el0t_64_sync+0x1a0/0x1a4 [ 72.269531][ T4657] CPU: 1 PID: 4657 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 72.271911][ T4657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.274711][ T4657] Call trace: [ 72.275604][ T4657] dump_backtrace+0x0/0x43c [ 72.276798][ T4657] show_stack+0x2c/0x3c [ 72.277939][ T4657] __dump_stack+0x30/0x40 [ 72.279123][ T4657] dump_stack_lvl+0xf8/0x160 [ 72.280381][ T4657] dump_stack+0x1c/0x5c [ 72.281531][ T4657] should_fail+0x3c0/0x51c [ 72.282721][ T4657] should_fail_alloc_page+0x74/0xa8 [ 72.284140][ T4657] prepare_alloc_pages+0x160/0x460 [ 72.285532][ T4657] __alloc_pages+0x108/0x470 [ 72.286810][ T4657] alloc_pages+0x34c/0x5c0 [ 72.288044][ T4657] new_slab+0xe0/0x55c [ 72.289139][ T4657] ___slab_alloc+0x6c0/0xda8 [ 72.290416][ T4657] __slab_alloc+0x68/0xc0 [ 72.291662][ T4657] __kmalloc_node+0x310/0x520 [ 72.292943][ T4657] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 72.294581][ T4657] nbd_start_device+0x14c/0xb40 [ 72.295920][ T4657] nbd_ioctl+0x514/0xc50 [ 72.297105][ T4657] blkdev_ioctl+0x5f8/0xbb8 [ 72.298388][ T4657] block_ioctl+0xa4/0x118 [ 72.299720][ T4657] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.301081][ T4657] invoke_syscall+0x98/0x2b8 [ 72.302416][ T4657] el0_svc_common+0x138/0x258 [ 72.303698][ T4657] do_el0_svc+0x58/0x14c [ 72.304845][ T4657] el0_svc+0x78/0x1e0 [ 72.305921][ T4657] el0t_64_sync_handler+0xcc/0xe4 [ 72.307376][ T4657] el0t_64_sync+0x1a0/0x1a4 [ 72.340200][ T4674] block nbd0: shutting down sockets [ 72.393506][ T4675] block nbd3: shutting down sockets [ 72.397712][ T4667] FAULT_INJECTION: forcing a failure. [ 72.397712][ T4667] name failslab, interval 1, probability 0, space 0, times 0 [ 72.401310][ T4667] CPU: 1 PID: 4667 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 72.403548][ T4667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.406376][ T4667] Call trace: [ 72.407228][ T4667] dump_backtrace+0x0/0x43c [ 72.408522][ T4667] show_stack+0x2c/0x3c [ 72.409632][ T4667] __dump_stack+0x30/0x40 [ 72.410909][ T4667] dump_stack_lvl+0xf8/0x160 [ 72.412204][ T4667] dump_stack+0x1c/0x5c [ 72.413330][ T4667] should_fail+0x3c0/0x51c [ 72.414575][ T4667] __should_failslab+0xbc/0x10c [ 72.415920][ T4667] should_failslab+0x10/0x28 [ 72.417178][ T4667] slab_pre_alloc_hook+0x64/0xec [ 72.418566][ T4667] __kmalloc_node+0xb8/0x520 [ 72.419852][ T4667] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.421244][ T4667] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.422847][ T4667] nbd_start_device+0x14c/0xb40 [ 72.424127][ T4667] nbd_ioctl+0x514/0xc50 [ 72.425253][ T4667] blkdev_ioctl+0x5f8/0xbb8 [ 72.426506][ T4667] block_ioctl+0xa4/0x118 [ 72.427657][ T4667] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.428993][ T4667] invoke_syscall+0x98/0x2b8 [ 72.430261][ T4667] el0_svc_common+0x138/0x258 [ 72.431575][ T4667] do_el0_svc+0x58/0x14c [ 72.432765][ T4667] el0_svc+0x78/0x1e0 [ 72.433871][ T4667] el0t_64_sync_handler+0xcc/0xe4 [ 72.435314][ T4667] el0t_64_sync+0x1a0/0x1a4 [ 72.443748][ T4679] block nbd2: shutting down sockets [ 72.479000][ T4670] FAULT_INJECTION: forcing a failure. [ 72.479000][ T4670] name failslab, interval 1, probability 0, space 0, times 0 [ 72.499331][ T4670] CPU: 0 PID: 4670 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 72.501752][ T4670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.504554][ T4670] Call trace: [ 72.505357][ T4667] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.505490][ T4670] dump_backtrace+0x0/0x43c [ 72.508646][ T4670] show_stack+0x2c/0x3c [ 72.509820][ T4670] __dump_stack+0x30/0x40 [ 72.510993][ T4670] dump_stack_lvl+0xf8/0x160 [ 72.512285][ T4670] dump_stack+0x1c/0x5c [ 72.513446][ T4670] should_fail+0x3c0/0x51c [ 72.514665][ T4670] __should_failslab+0xbc/0x10c [ 72.515970][ T4670] should_failslab+0x10/0x28 [ 72.517239][ T4670] slab_pre_alloc_hook+0x64/0xec [ 72.518622][ T4670] __kmalloc_node+0xb8/0x520 [ 72.519889][ T4670] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 72.521464][ T4670] nbd_start_device+0x14c/0xb40 [ 72.522782][ T4670] nbd_ioctl+0x514/0xc50 [ 72.523938][ T4670] blkdev_ioctl+0x5f8/0xbb8 [ 72.525241][ T4670] block_ioctl+0xa4/0x118 [ 72.526467][ T4670] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.527825][ T4670] invoke_syscall+0x98/0x2b8 [ 72.529058][ T4670] el0_svc_common+0x138/0x258 [ 72.530304][ T4670] do_el0_svc+0x58/0x14c [ 72.531548][ T4670] el0_svc+0x78/0x1e0 [ 72.532707][ T4670] el0t_64_sync_handler+0xcc/0xe4 [ 72.534081][ T4670] el0t_64_sync+0x1a0/0x1a4 [ 72.546646][ T4682] block nbd1: shutting down sockets [ 72.550890][ T4680] FAULT_INJECTION: forcing a failure. [ 72.550890][ T4680] name failslab, interval 1, probability 0, space 0, times 0 [ 72.568925][ T4673] FAULT_INJECTION: forcing a failure. [ 72.568925][ T4673] name failslab, interval 1, probability 0, space 0, times 0 [ 72.574452][ T4680] CPU: 0 PID: 4680 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 72.576883][ T4680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.579650][ T4680] Call trace: [ 72.580569][ T4680] dump_backtrace+0x0/0x43c [ 72.581809][ T4680] show_stack+0x2c/0x3c [ 72.583013][ T4680] __dump_stack+0x30/0x40 [ 72.584216][ T4680] dump_stack_lvl+0xf8/0x160 [ 72.585495][ T4680] dump_stack+0x1c/0x5c [ 72.586648][ T4680] should_fail+0x3c0/0x51c [ 72.587870][ T4680] __should_failslab+0xbc/0x10c [ 72.589247][ T4680] should_failslab+0x10/0x28 [ 72.590561][ T4680] slab_pre_alloc_hook+0x64/0xec [ 72.591923][ T4680] kmem_cache_alloc+0x94/0x3e4 [ 72.593279][ T4680] new_inode_pseudo+0x10c/0x1fc [ 72.594593][ T4680] new_inode+0x38/0x174 [ 72.595697][ T4680] debugfs_create_dir+0xec/0x3f4 [ 72.597044][ T4680] nbd_start_device+0x3c8/0xb40 [ 72.598440][ T4680] nbd_ioctl+0x514/0xc50 [ 72.599648][ T4680] blkdev_ioctl+0x5f8/0xbb8 [ 72.600902][ T4680] block_ioctl+0xa4/0x118 [ 72.602124][ T4680] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.603460][ T4680] invoke_syscall+0x98/0x2b8 [ 72.604748][ T4680] el0_svc_common+0x138/0x258 [ 72.606046][ T4680] do_el0_svc+0x58/0x14c [ 72.607224][ T4680] el0_svc+0x78/0x1e0 [ 72.608385][ T4680] el0t_64_sync_handler+0xcc/0xe4 [ 72.609750][ T4680] el0t_64_sync+0x1a0/0x1a4 [ 72.615359][ T21] Bluetooth: hci1: command 0x0419 tx timeout [ 72.618206][ T21] Bluetooth: hci3: command 0x0419 tx timeout [ 72.620348][ T21] Bluetooth: hci0: command 0x0419 tx timeout [ 72.622326][ T21] Bluetooth: hci2: command 0x0419 tx timeout [ 72.625545][ T4673] CPU: 1 PID: 4673 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 72.628008][ T4673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.630770][ T4673] Call trace: [ 72.631652][ T4673] dump_backtrace+0x0/0x43c [ 72.632953][ T4673] show_stack+0x2c/0x3c [ 72.634017][ T4673] __dump_stack+0x30/0x40 [ 72.635157][ T4673] dump_stack_lvl+0xf8/0x160 [ 72.636426][ T4673] dump_stack+0x1c/0x5c [ 72.637548][ T4673] should_fail+0x3c0/0x51c [ 72.638759][ T4673] __should_failslab+0xbc/0x10c [ 72.640093][ T4673] should_failslab+0x10/0x28 [ 72.641323][ T4673] slab_pre_alloc_hook+0x64/0xec [ 72.642690][ T4673] __kmalloc_node+0xb8/0x520 [ 72.643941][ T4673] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.645434][ T4673] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.646966][ T4673] nbd_start_device+0x14c/0xb40 [ 72.648323][ T4673] nbd_ioctl+0x514/0xc50 [ 72.649563][ T4673] blkdev_ioctl+0x5f8/0xbb8 [ 72.650846][ T4673] block_ioctl+0xa4/0x118 [ 72.652031][ T4673] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.653455][ T4673] invoke_syscall+0x98/0x2b8 [ 72.654779][ T4673] el0_svc_common+0x138/0x258 [ 72.656136][ T4673] do_el0_svc+0x58/0x14c [ 72.657300][ T4673] el0_svc+0x78/0x1e0 [ 72.658377][ T4673] el0t_64_sync_handler+0xcc/0xe4 [ 72.659808][ T4673] el0t_64_sync+0x1a0/0x1a4 [ 72.669481][ T21] Bluetooth: hci4: command 0x0419 tx timeout [ 72.679157][ T4680] debugfs: out of free dentries, can not create directory 'nbd1' [ 72.681794][ T4680] block nbd1: Failed to create debugfs dir for 'nbd1' [ 72.694613][ T4690] block nbd4: shutting down sockets [ 72.697839][ T4690] FAULT_INJECTION: forcing a failure. [ 72.697839][ T4690] name failslab, interval 1, probability 0, space 0, times 0 [ 72.703161][ T4690] CPU: 1 PID: 4690 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 72.705646][ T4690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.708384][ T4690] Call trace: [ 72.709262][ T4690] dump_backtrace+0x0/0x43c [ 72.710566][ T4690] show_stack+0x2c/0x3c [ 72.711747][ T4690] __dump_stack+0x30/0x40 [ 72.712955][ T4690] dump_stack_lvl+0xf8/0x160 [ 72.714229][ T4690] dump_stack+0x1c/0x5c [ 72.715400][ T4690] should_fail+0x3c0/0x51c [ 72.716589][ T4690] __should_failslab+0xbc/0x10c [ 72.717927][ T4690] should_failslab+0x10/0x28 [ 72.719201][ T4690] slab_pre_alloc_hook+0x64/0xec [ 72.720579][ T4690] kmem_cache_alloc+0x94/0x3e4 [ 72.722064][ T4690] __d_alloc+0x3c/0x65c [ 72.723210][ T4690] d_alloc_parallel+0x80/0x1104 [ 72.724532][ T4690] __lookup_slow+0x104/0x380 [ 72.725773][ T4690] lookup_one_len+0x178/0x28c [ 72.727031][ T4690] start_creating+0x19c/0x2e0 [ 72.728298][ T4690] debugfs_create_dir+0x30/0x3f4 [ 72.729652][ T4690] nbd_start_device+0x3c8/0xb40 [ 72.730937][ T4690] nbd_ioctl+0x514/0xc50 [ 72.732093][ T4690] blkdev_ioctl+0x5f8/0xbb8 [ 72.733296][ T4690] block_ioctl+0xa4/0x118 [ 72.734466][ T4690] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.735784][ T4690] invoke_syscall+0x98/0x2b8 [ 72.737067][ T4690] el0_svc_common+0x138/0x258 [ 72.738399][ T4690] do_el0_svc+0x58/0x14c [ 72.739572][ T4690] el0_svc+0x78/0x1e0 [ 72.740635][ T4690] el0t_64_sync_handler+0xcc/0xe4 [ 72.742037][ T4690] el0t_64_sync+0x1a0/0x1a4 [ 72.774018][ T4694] block nbd0: shutting down sockets [ 72.776494][ T4673] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.817882][ T4690] block nbd4: Failed to create debugfs dir for 'nbd4' [ 72.844979][ T4692] FAULT_INJECTION: forcing a failure. [ 72.844979][ T4692] name failslab, interval 1, probability 0, space 0, times 0 [ 72.854642][ T4702] block nbd3: shutting down sockets [ 72.857496][ T4699] block nbd1: shutting down sockets [ 72.860682][ T4699] FAULT_INJECTION: forcing a failure. [ 72.860682][ T4699] name failslab, interval 1, probability 0, space 0, times 0 [ 72.871811][ T4699] CPU: 0 PID: 4699 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 72.874161][ T4699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.876959][ T4699] Call trace: [ 72.877814][ T4699] dump_backtrace+0x0/0x43c [ 72.879058][ T4699] show_stack+0x2c/0x3c [ 72.880241][ T4699] __dump_stack+0x30/0x40 [ 72.881420][ T4699] dump_stack_lvl+0xf8/0x160 [ 72.882682][ T4699] dump_stack+0x1c/0x5c [ 72.883803][ T4699] should_fail+0x3c0/0x51c [ 72.884958][ T4699] __should_failslab+0xbc/0x10c [ 72.886288][ T4699] should_failslab+0x10/0x28 [ 72.887558][ T4699] slab_pre_alloc_hook+0x64/0xec [ 72.888936][ T4699] kmem_cache_alloc+0x94/0x3e4 [ 72.890245][ T4699] new_inode_pseudo+0x10c/0x1fc [ 72.891581][ T4699] new_inode+0x38/0x174 [ 72.892733][ T4699] debugfs_create_dir+0xec/0x3f4 [ 72.894129][ T4699] nbd_start_device+0x3c8/0xb40 [ 72.895513][ T4699] nbd_ioctl+0x514/0xc50 [ 72.896661][ T4699] blkdev_ioctl+0x5f8/0xbb8 [ 72.897904][ T4699] block_ioctl+0xa4/0x118 [ 72.899090][ T4699] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.900468][ T4699] invoke_syscall+0x98/0x2b8 [ 72.901762][ T4699] el0_svc_common+0x138/0x258 [ 72.903049][ T4699] do_el0_svc+0x58/0x14c [ 72.904198][ T4699] el0_svc+0x78/0x1e0 [ 72.905366][ T4699] el0t_64_sync_handler+0xcc/0xe4 [ 72.906748][ T4699] el0t_64_sync+0x1a0/0x1a4 [ 72.911804][ T4692] CPU: 1 PID: 4692 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 72.914198][ T4692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.916955][ T4692] Call trace: [ 72.917829][ T4692] dump_backtrace+0x0/0x43c [ 72.919048][ T4692] show_stack+0x2c/0x3c [ 72.920203][ T4692] __dump_stack+0x30/0x40 [ 72.921387][ T4692] dump_stack_lvl+0xf8/0x160 [ 72.922621][ T4692] dump_stack+0x1c/0x5c [ 72.923710][ T4692] should_fail+0x3c0/0x51c [ 72.924892][ T4692] __should_failslab+0xbc/0x10c [ 72.926249][ T4692] should_failslab+0x10/0x28 [ 72.927501][ T4692] slab_pre_alloc_hook+0x64/0xec [ 72.928821][ T4692] __kmalloc_node+0xb8/0x520 [ 72.930056][ T4692] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.931535][ T4692] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.933085][ T4692] nbd_start_device+0x14c/0xb40 [ 72.934419][ T4692] nbd_ioctl+0x514/0xc50 [ 72.935516][ T4692] blkdev_ioctl+0x5f8/0xbb8 [ 72.936740][ T4692] block_ioctl+0xa4/0x118 [ 72.937871][ T4692] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.939268][ T4692] invoke_syscall+0x98/0x2b8 [ 72.940513][ T4692] el0_svc_common+0x138/0x258 [ 72.941722][ T4692] do_el0_svc+0x58/0x14c [ 72.942875][ T4692] el0_svc+0x78/0x1e0 [ 72.943975][ T4692] el0t_64_sync_handler+0xcc/0xe4 [ 72.945327][ T4692] el0t_64_sync+0x1a0/0x1a4 [ 72.962001][ T4699] debugfs: out of free dentries, can not create directory 'nbd1' [ 72.964465][ T4698] FAULT_INJECTION: forcing a failure. [ 72.964465][ T4698] name failslab, interval 1, probability 0, space 0, times 0 [ 72.964490][ T4698] CPU: 1 PID: 4698 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 72.964501][ T4698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 72.964508][ T4698] Call trace: [ 72.964511][ T4698] dump_backtrace+0x0/0x43c [ 72.964524][ T4698] show_stack+0x2c/0x3c [ 72.964534][ T4698] __dump_stack+0x30/0x40 [ 72.964543][ T4698] dump_stack_lvl+0xf8/0x160 [ 72.964551][ T4698] dump_stack+0x1c/0x5c [ 72.964559][ T4698] should_fail+0x3c0/0x51c [ 72.964568][ T4698] __should_failslab+0xbc/0x10c [ 72.964578][ T4698] should_failslab+0x10/0x28 [ 72.964587][ T4698] slab_pre_alloc_hook+0x64/0xec [ 72.964596][ T4698] __kmalloc_node+0xb8/0x520 [ 72.964604][ T4698] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.964614][ T4698] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.964624][ T4698] nbd_start_device+0x14c/0xb40 [ 72.964634][ T4698] nbd_ioctl+0x514/0xc50 [ 72.964643][ T4698] blkdev_ioctl+0x5f8/0xbb8 [ 72.964651][ T4698] block_ioctl+0xa4/0x118 [ 72.964661][ T4698] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.964671][ T4698] invoke_syscall+0x98/0x2b8 [ 72.964680][ T4698] el0_svc_common+0x138/0x258 [ 72.964689][ T4698] do_el0_svc+0x58/0x14c [ 72.964698][ T4698] el0_svc+0x78/0x1e0 [ 72.964707][ T4698] el0t_64_sync_handler+0xcc/0xe4 [ 72.964715][ T4698] el0t_64_sync+0x1a0/0x1a4 [ 72.964725][ T4698] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.006480][ T4692] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.014672][ T4699] block nbd1: Failed to create debugfs dir for 'nbd1' [ 73.045133][ T4709] block nbd2: shutting down sockets [ 73.088527][ T4707] block nbd4: shutting down sockets [ 73.097904][ T4705] FAULT_INJECTION: forcing a failure. [ 73.097904][ T4705] name failslab, interval 1, probability 0, space 0, times 0 [ 73.101567][ T4707] FAULT_INJECTION: forcing a failure. [ 73.101567][ T4707] name failslab, interval 1, probability 0, space 0, times 0 [ 73.105803][ T4707] CPU: 0 PID: 4707 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 73.108142][ T4707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.110935][ T4707] Call trace: [ 73.111825][ T4707] dump_backtrace+0x0/0x43c [ 73.113034][ T4707] show_stack+0x2c/0x3c [ 73.114148][ T4707] __dump_stack+0x30/0x40 [ 73.115327][ T4707] dump_stack_lvl+0xf8/0x160 [ 73.116591][ T4707] dump_stack+0x1c/0x5c [ 73.117741][ T4707] should_fail+0x3c0/0x51c [ 73.118930][ T4707] __should_failslab+0xbc/0x10c [ 73.120177][ T4707] should_failslab+0x10/0x28 [ 73.121395][ T4707] slab_pre_alloc_hook+0x64/0xec [ 73.122714][ T4707] kmem_cache_alloc+0x94/0x3e4 [ 73.124061][ T4707] __d_alloc+0x3c/0x65c [ 73.125150][ T4707] d_alloc_parallel+0x80/0x1104 [ 73.126434][ T4707] __lookup_slow+0x104/0x380 [ 73.127699][ T4707] lookup_one_len+0x178/0x28c [ 73.128981][ T4707] start_creating+0x19c/0x2e0 [ 73.130288][ T4707] debugfs_create_dir+0x30/0x3f4 [ 73.131574][ T4707] nbd_start_device+0x3c8/0xb40 [ 73.132891][ T4707] nbd_ioctl+0x514/0xc50 [ 73.134026][ T4707] blkdev_ioctl+0x5f8/0xbb8 [ 73.135243][ T4707] block_ioctl+0xa4/0x118 [ 73.136429][ T4707] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.137720][ T4707] invoke_syscall+0x98/0x2b8 [ 73.138864][ T4707] el0_svc_common+0x138/0x258 [ 73.140075][ T4707] do_el0_svc+0x58/0x14c [ 73.141244][ T4707] el0_svc+0x78/0x1e0 [ 73.142369][ T4707] el0t_64_sync_handler+0xcc/0xe4 [ 73.143728][ T4707] el0t_64_sync+0x1a0/0x1a4 [ 73.157199][ T4705] CPU: 0 PID: 4705 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 73.159586][ T4705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.162521][ T4705] Call trace: [ 73.163507][ T4705] dump_backtrace+0x0/0x43c [ 73.164770][ T4705] show_stack+0x2c/0x3c [ 73.165882][ T4705] __dump_stack+0x30/0x40 [ 73.167049][ T4705] dump_stack_lvl+0xf8/0x160 [ 73.168333][ T4705] dump_stack+0x1c/0x5c [ 73.169457][ T4705] should_fail+0x3c0/0x51c [ 73.170642][ T4705] __should_failslab+0xbc/0x10c [ 73.172006][ T4705] should_failslab+0x10/0x28 [ 73.173298][ T4705] slab_pre_alloc_hook+0x64/0xec [ 73.174606][ T4705] __kmalloc_node+0xb8/0x520 [ 73.175842][ T4705] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.177300][ T4705] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.178911][ T4705] nbd_start_device+0x14c/0xb40 [ 73.180264][ T4705] nbd_ioctl+0x514/0xc50 [ 73.181495][ T4705] blkdev_ioctl+0x5f8/0xbb8 [ 73.182705][ T4705] block_ioctl+0xa4/0x118 [ 73.183910][ T4705] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.185333][ T4705] invoke_syscall+0x98/0x2b8 [ 73.186607][ T4705] el0_svc_common+0x138/0x258 [ 73.187853][ T4705] do_el0_svc+0x58/0x14c [ 73.189046][ T4705] el0_svc+0x78/0x1e0 [ 73.190136][ T4705] el0t_64_sync_handler+0xcc/0xe4 [ 73.191516][ T4705] el0t_64_sync+0x1a0/0x1a4 [ 73.213468][ T4707] block nbd4: Failed to create debugfs dir for 'nbd4' [ 73.223649][ T4724] block nbd1: shutting down sockets [ 73.227388][ T4721] FAULT_INJECTION: forcing a failure. [ 73.227388][ T4721] name failslab, interval 1, probability 0, space 0, times 0 [ 73.231251][ T4721] CPU: 1 PID: 4721 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 73.233611][ T4721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.236354][ T4721] Call trace: [ 73.237216][ T4721] dump_backtrace+0x0/0x43c [ 73.238506][ T4721] show_stack+0x2c/0x3c [ 73.239640][ T4721] __dump_stack+0x30/0x40 [ 73.240816][ T4721] dump_stack_lvl+0xf8/0x160 [ 73.241987][ T4721] dump_stack+0x1c/0x5c [ 73.243066][ T4721] should_fail+0x3c0/0x51c [ 73.244212][ T4721] __should_failslab+0xbc/0x10c [ 73.245490][ T4721] should_failslab+0x10/0x28 [ 73.246690][ T4721] slab_pre_alloc_hook+0x64/0xec [ 73.246790][ T4705] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.248016][ T4721] kmem_cache_alloc+0x94/0x3e4 [ 73.251093][ T4721] new_inode_pseudo+0x10c/0x1fc [ 73.252397][ T4721] new_inode+0x38/0x174 [ 73.253489][ T4721] debugfs_create_dir+0xec/0x3f4 [ 73.254771][ T4721] nbd_start_device+0x3c8/0xb40 [ 73.256075][ T4721] nbd_ioctl+0x514/0xc50 [ 73.257168][ T4721] blkdev_ioctl+0x5f8/0xbb8 [ 73.258457][ T4721] block_ioctl+0xa4/0x118 [ 73.259676][ T4721] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.261036][ T4721] invoke_syscall+0x98/0x2b8 [ 73.262284][ T4721] el0_svc_common+0x138/0x258 [ 73.263546][ T4721] do_el0_svc+0x58/0x14c [ 73.264627][ T4721] el0_svc+0x78/0x1e0 [ 73.265658][ T4721] el0t_64_sync_handler+0xcc/0xe4 [ 73.266986][ T4721] el0t_64_sync+0x1a0/0x1a4 [ 73.267044][ T4722] block nbd3: shutting down sockets [ 73.307537][ T4721] debugfs: out of free dentries, can not create directory 'nbd1' [ 73.310385][ T4721] block nbd1: Failed to create debugfs dir for 'nbd1' [ 73.334265][ T4729] block nbd0: shutting down sockets [ 73.337990][ T4716] FAULT_INJECTION: forcing a failure. [ 73.337990][ T4716] name failslab, interval 1, probability 0, space 0, times 0 [ 73.341602][ T4716] CPU: 0 PID: 4716 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 73.343969][ T4716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.346746][ T4716] Call trace: [ 73.347632][ T4716] dump_backtrace+0x0/0x43c [ 73.348961][ T4716] show_stack+0x2c/0x3c [ 73.350120][ T4716] __dump_stack+0x30/0x40 [ 73.351302][ T4716] dump_stack_lvl+0xf8/0x160 [ 73.352612][ T4716] dump_stack+0x1c/0x5c [ 73.353782][ T4716] should_fail+0x3c0/0x51c [ 73.355014][ T4716] __should_failslab+0xbc/0x10c [ 73.356362][ T4716] should_failslab+0x10/0x28 [ 73.357599][ T4716] slab_pre_alloc_hook+0x64/0xec [ 73.358984][ T4716] __kmalloc_node+0xb8/0x520 [ 73.360255][ T4716] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 73.361862][ T4716] nbd_start_device+0x14c/0xb40 [ 73.363248][ T4716] nbd_ioctl+0x514/0xc50 [ 73.364429][ T4716] blkdev_ioctl+0x5f8/0xbb8 [ 73.365700][ T4716] block_ioctl+0xa4/0x118 [ 73.366901][ T4716] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.368279][ T4716] invoke_syscall+0x98/0x2b8 [ 73.369544][ T4716] el0_svc_common+0x138/0x258 [ 73.370801][ T4716] do_el0_svc+0x58/0x14c [ 73.371943][ T4716] el0_svc+0x78/0x1e0 [ 73.373102][ T4716] el0t_64_sync_handler+0xcc/0xe4 [ 73.374528][ T4716] el0t_64_sync+0x1a0/0x1a4 [ 73.419311][ T4727] FAULT_INJECTION: forcing a failure. [ 73.419311][ T4727] name failslab, interval 1, probability 0, space 0, times 0 [ 73.422804][ T4727] CPU: 1 PID: 4727 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 73.425020][ T4727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.427627][ T4727] Call trace: [ 73.428440][ T4727] dump_backtrace+0x0/0x43c [ 73.429597][ T4727] show_stack+0x2c/0x3c [ 73.430677][ T4727] __dump_stack+0x30/0x40 [ 73.431774][ T4727] dump_stack_lvl+0xf8/0x160 [ 73.432925][ T4727] dump_stack+0x1c/0x5c [ 73.433983][ T4727] should_fail+0x3c0/0x51c [ 73.435091][ T4727] __should_failslab+0xbc/0x10c [ 73.436327][ T4727] should_failslab+0x10/0x28 [ 73.437659][ T4727] slab_pre_alloc_hook+0x64/0xec [ 73.438965][ T4727] __kmalloc_node+0xb8/0x520 [ 73.440270][ T4727] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.441755][ T4727] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.443332][ T4727] nbd_start_device+0x14c/0xb40 [ 73.444668][ T4727] nbd_ioctl+0x514/0xc50 [ 73.445794][ T4727] blkdev_ioctl+0x5f8/0xbb8 [ 73.447024][ T4727] block_ioctl+0xa4/0x118 [ 73.448203][ T4727] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.449578][ T4727] invoke_syscall+0x98/0x2b8 [ 73.450832][ T4727] el0_svc_common+0x138/0x258 [ 73.452097][ T4727] do_el0_svc+0x58/0x14c [ 73.453222][ T4727] el0_svc+0x78/0x1e0 [ 73.454330][ T4727] el0t_64_sync_handler+0xcc/0xe4 [ 73.455681][ T4727] el0t_64_sync+0x1a0/0x1a4 [ 73.463761][ T4727] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.496948][ T4736] block nbd4: shutting down sockets [ 73.499515][ T4731] FAULT_INJECTION: forcing a failure. [ 73.499515][ T4731] name failslab, interval 1, probability 0, space 0, times 0 [ 73.503328][ T4731] CPU: 1 PID: 4731 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 73.505619][ T4731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.508367][ T4731] Call trace: [ 73.509223][ T4731] dump_backtrace+0x0/0x43c [ 73.510478][ T4731] show_stack+0x2c/0x3c [ 73.511605][ T4731] __dump_stack+0x30/0x40 [ 73.512789][ T4731] dump_stack_lvl+0xf8/0x160 [ 73.514039][ T4731] dump_stack+0x1c/0x5c [ 73.515110][ T4731] should_fail+0x3c0/0x51c [ 73.516264][ T4731] __should_failslab+0xbc/0x10c [ 73.517542][ T4731] should_failslab+0x10/0x28 [ 73.518812][ T4731] slab_pre_alloc_hook+0x64/0xec [ 73.520090][ T4731] kmem_cache_alloc+0x94/0x3e4 [ 73.521381][ T4731] __d_alloc+0x3c/0x65c [ 73.522552][ T4731] d_alloc_parallel+0x80/0x1104 [ 73.523833][ T4731] __lookup_slow+0x104/0x380 [ 73.525035][ T4731] lookup_one_len+0x178/0x28c [ 73.526227][ T4731] start_creating+0x19c/0x2e0 [ 73.527510][ T4731] debugfs_create_dir+0x30/0x3f4 [ 73.528855][ T4731] nbd_start_device+0x3c8/0xb40 [ 73.530108][ T4731] nbd_ioctl+0x514/0xc50 [ 73.531222][ T4731] blkdev_ioctl+0x5f8/0xbb8 [ 73.532440][ T4731] block_ioctl+0xa4/0x118 [ 73.533600][ T4731] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.534916][ T4731] invoke_syscall+0x98/0x2b8 [ 73.536139][ T4731] el0_svc_common+0x138/0x258 [ 73.537442][ T4731] do_el0_svc+0x58/0x14c [ 73.538637][ T4731] el0_svc+0x78/0x1e0 [ 73.539303][ T4741] block nbd2: Device being setup by another task [ 73.539646][ T4731] el0t_64_sync_handler+0xcc/0xe4 [ 73.542675][ T4731] el0t_64_sync+0x1a0/0x1a4 [ 73.544669][ T4734] block nbd2: shutting down sockets [ 73.550754][ T4734] FAULT_INJECTION: forcing a failure. [ 73.550754][ T4734] name failslab, interval 1, probability 0, space 0, times 0 [ 73.554529][ T4731] block nbd4: Failed to create debugfs dir for 'nbd4' [ 73.556559][ T4734] CPU: 1 PID: 4734 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 73.558915][ T4734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.561675][ T4734] Call trace: [ 73.562615][ T4734] dump_backtrace+0x0/0x43c [ 73.563822][ T4734] show_stack+0x2c/0x3c [ 73.564914][ T4734] __dump_stack+0x30/0x40 [ 73.566161][ T4734] dump_stack_lvl+0xf8/0x160 [ 73.567456][ T4734] dump_stack+0x1c/0x5c [ 73.568566][ T4734] should_fail+0x3c0/0x51c [ 73.569803][ T4734] __should_failslab+0xbc/0x10c [ 73.571202][ T4734] should_failslab+0x10/0x28 [ 73.572439][ T4734] slab_pre_alloc_hook+0x64/0xec [ 73.573770][ T4734] kmem_cache_alloc+0x94/0x3e4 [ 73.575015][ T4734] new_inode_pseudo+0x10c/0x1fc [ 73.576332][ T4734] new_inode+0x38/0x174 [ 73.577449][ T4734] debugfs_create_dir+0xec/0x3f4 [ 73.578777][ T4734] nbd_start_device+0x3c8/0xb40 [ 73.580075][ T4734] nbd_ioctl+0x514/0xc50 [ 73.581170][ T4734] blkdev_ioctl+0x5f8/0xbb8 [ 73.582408][ T4734] block_ioctl+0xa4/0x118 [ 73.583563][ T4734] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.584917][ T4734] invoke_syscall+0x98/0x2b8 [ 73.586173][ T4734] el0_svc_common+0x138/0x258 [ 73.587425][ T4734] do_el0_svc+0x58/0x14c [ 73.588593][ T4734] el0_svc+0x78/0x1e0 [ 73.589699][ T4734] el0t_64_sync_handler+0xcc/0xe4 [ 73.591071][ T4734] el0t_64_sync+0x1a0/0x1a4 [ 73.637809][ T4734] debugfs: out of free dentries, can not create directory 'nbd2' [ 73.640451][ T4734] block nbd2: Failed to create debugfs dir for 'nbd2' [ 73.643967][ T4751] block nbd1: Device being setup by another task [ 73.647812][ T4743] block nbd1: shutting down sockets [ 73.650021][ T4744] block nbd3: shutting down sockets [ 73.684372][ T4748] block nbd0: shutting down sockets [ 73.697673][ T4744] FAULT_INJECTION: forcing a failure. [ 73.697673][ T4744] name failslab, interval 1, probability 0, space 0, times 0 [ 73.711839][ T4744] CPU: 0 PID: 4744 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 73.714354][ T4744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.717144][ T4744] Call trace: [ 73.718012][ T4744] dump_backtrace+0x0/0x43c [ 73.719244][ T4744] show_stack+0x2c/0x3c [ 73.720358][ T4744] __dump_stack+0x30/0x40 [ 73.721569][ T4744] dump_stack_lvl+0xf8/0x160 [ 73.722735][ T4744] dump_stack+0x1c/0x5c [ 73.723861][ T4744] should_fail+0x3c0/0x51c [ 73.725068][ T4744] __should_failslab+0xbc/0x10c [ 73.726484][ T4744] should_failslab+0x10/0x28 [ 73.727744][ T4744] slab_pre_alloc_hook+0x64/0xec [ 73.729080][ T4744] __kmalloc_node+0xb8/0x520 [ 73.730339][ T4744] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.731693][ T4743] FAULT_INJECTION: forcing a failure. [ 73.731693][ T4743] name failslab, interval 1, probability 0, space 0, times 0 [ 73.731823][ T4744] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.731840][ T4744] nbd_start_device+0x14c/0xb40 [ 73.738181][ T4744] nbd_ioctl+0x514/0xc50 [ 73.739348][ T4744] blkdev_ioctl+0x5f8/0xbb8 [ 73.740683][ T4744] block_ioctl+0xa4/0x118 [ 73.741876][ T4744] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.743160][ T4744] invoke_syscall+0x98/0x2b8 [ 73.744406][ T4744] el0_svc_common+0x138/0x258 [ 73.745675][ T4744] do_el0_svc+0x58/0x14c [ 73.746850][ T4744] el0_svc+0x78/0x1e0 [ 73.747907][ T4744] el0t_64_sync_handler+0xcc/0xe4 [ 73.749264][ T4744] el0t_64_sync+0x1a0/0x1a4 [ 73.750518][ T4743] CPU: 1 PID: 4743 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 73.752943][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.755693][ T4743] Call trace: [ 73.756552][ T4743] dump_backtrace+0x0/0x43c [ 73.757789][ T4743] show_stack+0x2c/0x3c [ 73.758924][ T4743] __dump_stack+0x30/0x40 [ 73.760089][ T4743] dump_stack_lvl+0xf8/0x160 [ 73.761305][ T4743] dump_stack+0x1c/0x5c [ 73.762477][ T4743] should_fail+0x3c0/0x51c [ 73.763607][ T4744] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.763694][ T4743] __should_failslab+0xbc/0x10c [ 73.766760][ T4743] should_failslab+0x10/0x28 [ 73.768021][ T4743] slab_pre_alloc_hook+0x64/0xec [ 73.769345][ T4743] __kmalloc_track_caller+0x74/0x370 [ 73.769748][ T4753] block nbd4: shutting down sockets [ 73.770794][ T4743] kstrdup+0xe4/0x15c [ 73.770809][ T4743] kstrdup_const+0x54/0x6c [ 73.770817][ T4743] __kernfs_new_node+0xa8/0x5d8 [ 73.770826][ T4743] kernfs_new_node+0x11c/0x240 [ 73.777063][ T4743] kernfs_create_dir_ns+0x58/0x12c [ 73.778449][ T4743] sysfs_create_dir_ns+0x114/0x24c [ 73.779803][ T4743] kobject_add_internal+0x590/0xc54 [ 73.781135][ T4743] kobject_add+0x134/0x1f8 [ 73.782316][ T4743] blk_mq_register_hctx+0xc0/0x35c [ 73.783750][ T4743] blk_mq_sysfs_register+0xb8/0x18c [ 73.785189][ T4743] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 73.786739][ T4743] nbd_start_device+0x14c/0xb40 [ 73.787988][ T4743] nbd_ioctl+0x514/0xc50 [ 73.789118][ T4743] blkdev_ioctl+0x5f8/0xbb8 [ 73.790366][ T4743] block_ioctl+0xa4/0x118 [ 73.791525][ T4743] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.792779][ T4743] invoke_syscall+0x98/0x2b8 [ 73.793937][ T4743] el0_svc_common+0x138/0x258 [ 73.794447][ T4753] FAULT_INJECTION: forcing a failure. [ 73.794447][ T4753] name failslab, interval 1, probability 0, space 0, times 0 [ 73.795249][ T4743] do_el0_svc+0x58/0x14c [ 73.799958][ T4743] el0_svc+0x78/0x1e0 [ 73.801050][ T4743] el0t_64_sync_handler+0xcc/0xe4 [ 73.802443][ T4743] el0t_64_sync+0x1a0/0x1a4 [ 73.811947][ T4753] CPU: 0 PID: 4753 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 73.814554][ T4753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.817313][ T4753] Call trace: [ 73.818068][ T4743] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 73.818161][ T4753] dump_backtrace+0x0/0x43c [ 73.821276][ T4753] show_stack+0x2c/0x3c [ 73.822393][ T4753] __dump_stack+0x30/0x40 [ 73.823596][ T4753] dump_stack_lvl+0xf8/0x160 [ 73.824833][ T4753] dump_stack+0x1c/0x5c [ 73.826009][ T4753] should_fail+0x3c0/0x51c [ 73.827213][ T4753] __should_failslab+0xbc/0x10c [ 73.828512][ T4753] should_failslab+0x10/0x28 [ 73.829797][ T4753] slab_pre_alloc_hook+0x64/0xec [ 73.831139][ T4753] kmem_cache_alloc+0x94/0x3e4 [ 73.832419][ T4753] new_inode_pseudo+0x10c/0x1fc [ 73.833755][ T4753] new_inode+0x38/0x174 [ 73.834868][ T4753] debugfs_create_dir+0xec/0x3f4 [ 73.836197][ T4753] nbd_start_device+0x3c8/0xb40 [ 73.837555][ T4753] nbd_ioctl+0x514/0xc50 [ 73.838769][ T4753] blkdev_ioctl+0x5f8/0xbb8 [ 73.839931][ T4753] block_ioctl+0xa4/0x118 [ 73.841135][ T4753] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.842490][ T4753] invoke_syscall+0x98/0x2b8 [ 73.843773][ T4753] el0_svc_common+0x138/0x258 [ 73.845017][ T4753] do_el0_svc+0x58/0x14c [ 73.846200][ T4753] el0_svc+0x78/0x1e0 [ 73.847307][ T4753] el0t_64_sync_handler+0xcc/0xe4 [ 73.848727][ T4753] el0t_64_sync+0x1a0/0x1a4 [ 73.868252][ T4748] FAULT_INJECTION: forcing a failure. [ 73.868252][ T4748] name failslab, interval 1, probability 0, space 0, times 0 [ 73.869181][ T4758] block nbd2: shutting down sockets [ 73.872090][ T4748] CPU: 0 PID: 4748 Comm: syz-executor.0 Not tainted 5.15.181-syzkaller #0 [ 73.875619][ T4748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.878299][ T4748] Call trace: [ 73.879125][ T4748] dump_backtrace+0x0/0x43c [ 73.880439][ T4748] show_stack+0x2c/0x3c [ 73.881600][ T4748] __dump_stack+0x30/0x40 [ 73.882820][ T4748] dump_stack_lvl+0xf8/0x160 [ 73.884059][ T4748] dump_stack+0x1c/0x5c [ 73.885263][ T4748] should_fail+0x3c0/0x51c [ 73.886492][ T4748] __should_failslab+0xbc/0x10c [ 73.887806][ T4748] should_failslab+0x10/0x28 [ 73.889056][ T4748] slab_pre_alloc_hook+0x64/0xec [ 73.890483][ T4748] __kmalloc_node+0xb8/0x520 [ 73.891731][ T4748] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.893207][ T4748] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.894908][ T4748] nbd_start_device+0x14c/0xb40 [ 73.896279][ T4748] nbd_ioctl+0x514/0xc50 [ 73.897434][ T4748] blkdev_ioctl+0x5f8/0xbb8 [ 73.898687][ T4748] block_ioctl+0xa4/0x118 [ 73.899911][ T4748] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.901301][ T4748] invoke_syscall+0x98/0x2b8 [ 73.902568][ T4748] el0_svc_common+0x138/0x258 [ 73.903924][ T4748] do_el0_svc+0x58/0x14c [ 73.905106][ T4748] el0_svc+0x78/0x1e0 [ 73.906196][ T4748] el0t_64_sync_handler+0xcc/0xe4 [ 73.907642][ T4748] el0t_64_sync+0x1a0/0x1a4 [ 73.922282][ T4753] debugfs: out of free dentries, can not create directory 'nbd4' [ 73.928354][ T4753] block nbd4: Failed to create debugfs dir for 'nbd4' [ 73.965511][ T4758] FAULT_INJECTION: forcing a failure. [ 73.965511][ T4758] name failslab, interval 1, probability 0, space 0, times 0 [ 73.969170][ T4758] CPU: 1 PID: 4758 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 73.971495][ T4758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 73.974224][ T4758] Call trace: [ 73.975092][ T4758] dump_backtrace+0x0/0x43c [ 73.976384][ T4758] show_stack+0x2c/0x3c [ 73.977511][ T4758] __dump_stack+0x30/0x40 [ 73.978773][ T4758] dump_stack_lvl+0xf8/0x160 [ 73.980021][ T4758] dump_stack+0x1c/0x5c [ 73.981187][ T4758] should_fail+0x3c0/0x51c [ 73.982419][ T4758] __should_failslab+0xbc/0x10c [ 73.983763][ T4758] should_failslab+0x10/0x28 [ 73.985036][ T4758] slab_pre_alloc_hook+0x64/0xec [ 73.986429][ T4758] __kmalloc_node+0xb8/0x520 [ 73.987697][ T4758] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.989138][ T4758] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.990650][ T4758] nbd_start_device+0x14c/0xb40 [ 73.991902][ T4758] nbd_ioctl+0x514/0xc50 [ 73.992964][ T4758] blkdev_ioctl+0x5f8/0xbb8 [ 73.994158][ T4758] block_ioctl+0xa4/0x118 [ 73.995301][ T4758] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.996570][ T4758] invoke_syscall+0x98/0x2b8 [ 73.997807][ T4758] el0_svc_common+0x138/0x258 [ 73.999035][ T4758] do_el0_svc+0x58/0x14c [ 74.000122][ T4758] el0_svc+0x78/0x1e0 [ 74.001168][ T4758] el0t_64_sync_handler+0xcc/0xe4 [ 74.002506][ T4758] el0t_64_sync+0x1a0/0x1a4 [ 74.018580][ T4758] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.026797][ T4748] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.084120][ T4767] block nbd3: shutting down sockets [ 74.103972][ T4769] block nbd1: shutting down sockets [ 74.106018][ T4772] block nbd4: shutting down sockets [ 74.119410][ T4772] FAULT_INJECTION: forcing a failure. [ 74.119410][ T4772] name failslab, interval 1, probability 0, space 0, times 0 [ 74.123892][ T4772] CPU: 0 PID: 4772 Comm: syz-executor.4 Not tainted 5.15.181-syzkaller #0 [ 74.126211][ T4772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.127253][ T4775] block nbd2: shutting down sockets [ 74.129044][ T4772] Call trace: [ 74.129050][ T4772] dump_backtrace+0x0/0x43c [ 74.132540][ T4772] show_stack+0x2c/0x3c [ 74.133640][ T4772] __dump_stack+0x30/0x40 [ 74.134785][ T4772] dump_stack_lvl+0xf8/0x160 [ 74.136052][ T4772] dump_stack+0x1c/0x5c [ 74.137243][ T4772] should_fail+0x3c0/0x51c [ 74.138494][ T4772] __should_failslab+0xbc/0x10c [ 74.139829][ T4772] should_failslab+0x10/0x28 [ 74.141018][ T4772] slab_pre_alloc_hook+0x64/0xec [ 74.142375][ T4772] kmem_cache_alloc+0x94/0x3e4 [ 74.143687][ T4772] new_inode_pseudo+0x10c/0x1fc [ 74.145022][ T4772] new_inode+0x38/0x174 [ 74.146182][ T4772] debugfs_create_dir+0xec/0x3f4 [ 74.147572][ T4772] nbd_start_device+0x3c8/0xb40 [ 74.148846][ T4772] nbd_ioctl+0x514/0xc50 [ 74.150013][ T4772] blkdev_ioctl+0x5f8/0xbb8 [ 74.151260][ T4772] block_ioctl+0xa4/0x118 [ 74.152428][ T4772] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.153800][ T4772] invoke_syscall+0x98/0x2b8 [ 74.155076][ T4772] el0_svc_common+0x138/0x258 [ 74.156413][ T4772] do_el0_svc+0x58/0x14c [ 74.157583][ T4772] el0_svc+0x78/0x1e0 [ 74.158656][ T4772] el0t_64_sync_handler+0xcc/0xe4 [ 74.159992][ T4772] el0t_64_sync+0x1a0/0x1a4 [ 74.177648][ T4767] FAULT_INJECTION: forcing a failure. [ 74.177648][ T4767] name failslab, interval 1, probability 0, space 0, times 0 [ 74.181492][ T4767] CPU: 0 PID: 4767 Comm: syz-executor.3 Not tainted 5.15.181-syzkaller #0 [ 74.183983][ T4767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.184271][ T4778] block nbd0: shutting down sockets [ 74.186752][ T4767] Call trace: [ 74.186759][ T4767] dump_backtrace+0x0/0x43c [ 74.186773][ T4767] show_stack+0x2c/0x3c [ 74.191373][ T4767] __dump_stack+0x30/0x40 [ 74.192522][ T4767] dump_stack_lvl+0xf8/0x160 [ 74.193782][ T4767] dump_stack+0x1c/0x5c [ 74.194925][ T4767] should_fail+0x3c0/0x51c [ 74.196172][ T4767] __should_failslab+0xbc/0x10c [ 74.197529][ T4767] should_failslab+0x10/0x28 [ 74.198784][ T4767] slab_pre_alloc_hook+0x64/0xec [ 74.200187][ T4767] __kmalloc_node+0xb8/0x520 [ 74.201473][ T4767] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.202957][ T4767] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.203600][ T4775] FAULT_INJECTION: forcing a failure. [ 74.203600][ T4775] name failslab, interval 1, probability 0, space 0, times 0 [ 74.204503][ T4767] nbd_start_device+0x14c/0xb40 [ 74.204519][ T4767] nbd_ioctl+0x514/0xc50 [ 74.204528][ T4767] blkdev_ioctl+0x5f8/0xbb8 [ 74.211610][ T4767] block_ioctl+0xa4/0x118 [ 74.212739][ T4767] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.214067][ T4767] invoke_syscall+0x98/0x2b8 [ 74.215395][ T4767] el0_svc_common+0x138/0x258 [ 74.216722][ T4767] do_el0_svc+0x58/0x14c [ 74.217885][ T4767] el0_svc+0x78/0x1e0 [ 74.219042][ T4767] el0t_64_sync_handler+0xcc/0xe4 [ 74.220483][ T4767] el0t_64_sync+0x1a0/0x1a4 [ 74.221738][ T4775] CPU: 1 PID: 4775 Comm: syz-executor.2 Not tainted 5.15.181-syzkaller #0 [ 74.224056][ T4775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.226860][ T4775] Call trace: [ 74.227770][ T4775] dump_backtrace+0x0/0x43c [ 74.229021][ T4775] show_stack+0x2c/0x3c [ 74.230185][ T4775] __dump_stack+0x30/0x40 [ 74.231398][ T4775] dump_stack_lvl+0xf8/0x160 [ 74.232699][ T4775] dump_stack+0x1c/0x5c [ 74.233865][ T4775] should_fail+0x3c0/0x51c [ 74.235100][ T4775] __should_failslab+0xbc/0x10c [ 74.236490][ T4775] should_failslab+0x10/0x28 [ 74.237190][ T4769] ------------[ cut here ]------------ [ 74.237665][ T4775] slab_pre_alloc_hook+0x64/0xec [ 74.237680][ T4775] __kmalloc_node+0xb8/0x520 [ 74.237689][ T4775] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.243223][ T4775] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.244728][ T4775] nbd_start_device+0x14c/0xb40 [ 74.245990][ T4775] nbd_ioctl+0x514/0xc50 [ 74.247127][ T4775] blkdev_ioctl+0x5f8/0xbb8 [ 74.247286][ T4769] kernfs: can not remove 'nr_tags', no directory [ 74.248287][ T4775] block_ioctl+0xa4/0x118 [ 74.248302][ T4775] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.248313][ T4775] invoke_syscall+0x98/0x2b8 [ 74.248323][ T4775] el0_svc_common+0x138/0x258 [ 74.250226][ T4769] WARNING: CPU: 0 PID: 4769 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 74.251062][ T4775] do_el0_svc+0x58/0x14c [ 74.252420][ T4769] Modules linked in: [ 74.253612][ T4775] el0_svc+0x78/0x1e0 [ 74.254896][ T4769] [ 74.257393][ T4775] el0t_64_sync_handler+0xcc/0xe4 [ 74.258515][ T4769] CPU: 0 PID: 4769 Comm: syz-executor.1 Not tainted 5.15.181-syzkaller #0 [ 74.259504][ T4775] el0t_64_sync+0x1a0/0x1a4 [ 74.260537][ T4769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.268697][ T4769] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 74.269863][ T4772] debugfs: out of free dentries, can not create directory 'nbd4' [ 74.270897][ T4769] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.270914][ T4769] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.270922][ T4769] sp : ffff800020107790 [ 74.274007][ T4772] block nbd4: Failed to create debugfs dir for 'nbd4' [ 74.274502][ T4769] x29: ffff800020107790 x28: ffff0000cc831000 x27: 0000000000000000 [ 74.280870][ T4775] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.281187][ T4769] x26: 0000000000000002 x25: ffff8000148eaba8 x24: 1ffff000022f275c [ 74.281212][ T4769] x23: dfff800000000000 x22: ffff8000148eabe0 x21: 0000000000000000 [ 74.287363][ T4769] x20: 0000000000000000 x19: ffff800011793b40 x18: 0000000000000002 [ 74.289537][ T4769] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 74.291698][ T4769] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 74.292961][ T4767] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.293911][ T4769] x11: 0000000000000000 x10: 0000000000000000 x9 : c415659d3bfebc00 [ 74.293934][ T4769] x8 : c415659d3bfebc00 x7 : 0000000000000000 x6 : 0000000000000000 [ 74.293950][ T4769] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008503848 [ 74.293966][ T4769] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002e [ 74.293982][ T4769] Call trace: [ 74.293987][ T4769] kernfs_remove_by_name_ns+0xcc/0x158 [ 74.294001][ T4769] sysfs_remove_group+0xf8/0x288 [ 74.294010][ T4769] sysfs_remove_groups+0x5c/0xb4 [ 74.294019][ T4769] __kobject_del+0x90/0x2d4 [ 74.294028][ T4769] kobject_del+0x48/0x68 [ 74.294036][ T4769] blk_mq_sysfs_unregister+0x198/0x268 [ 74.294047][ T4769] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 74.294058][ T4769] nbd_start_device+0x14c/0xb40 [ 74.294067][ T4769] nbd_ioctl+0x514/0xc50 [ 74.294076][ T4769] blkdev_ioctl+0x5f8/0xbb8 [ 74.294084][ T4769] block_ioctl+0xa4/0x118 [ 74.294094][ T4769] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.294104][ T4769] invoke_syscall+0x98/0x2b8 [ 74.294114][ T4769] el0_svc_common+0x138/0x258 [ 74.294123][ T4769] do_el0_svc+0x58/0x14c [ 74.294132][ T4769] el0_svc+0x78/0x1e0 [ 74.294141][ T4769] el0t_64_sync_handler+0xcc/0xe4 [ 74.294150][ T4769] el0t_64_sync+0x1a0/0x1a4 [ 74.294159][ T4769] irq event stamp: 2108 [ 74.294163][ T4769] hardirqs last enabled at (2107): [] finish_lock_switch+0xb0/0x1c4 [ 74.294176][ T4769] hardirqs last disabled at (2108): [] el1_dbg+0x24/0x80 [ 74.294187][ T4769] softirqs last enabled at (442): [] local_bh_enable+0x10/0x34 [ 74.337031][ T4769] softirqs last disabled at (440): [] local_bh_disable+0x10/0x34 [ 74.339596][ T4769] ---[ end trace 7c5743ebc6d8c251 ]--- [ 74.367243][ T4769] ------------[ cut here ]------------ [ 74.369091][ T4769] kernfs: can not remove 'nr_reserved_tags', no directory [ 74.371498][ T4769] WARNING: CPU: 0 PID: 4769 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 74.374549][ T4769] Modules linked in: [ 74.375625][ T4769] CPU: 0 PID: 4769 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 74.378448][ T4769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.381299][ T4769] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 74.383485][ T4769] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.385162][ T4769] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.386785][ T4769] sp : ffff800020107790 [ 74.387912][ T4769] x29: ffff800020107790 x28: ffff0000cc831000 x27: 0000000000000000 [ 74.390069][ T4769] x26: 0000000000000002 x25: ffff8000148eabb0 x24: 1ffff000022f275c [ 74.392286][ T4769] x23: dfff800000000000 x22: ffff8000148eac40 x21: 0000000000000000 [ 74.394536][ T4769] x20: 0000000000000000 x19: ffff800011793b80 x18: 0000000000000002 [ 74.396717][ T4769] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 74.398971][ T4769] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 74.401244][ T4769] x11: 0000000000000000 x10: 0000000000000000 x9 : c415659d3bfebc00 [ 74.403447][ T4769] x8 : c415659d3bfebc00 x7 : 0000000000000000 x6 : 0000000000000000 [ 74.405620][ T4769] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008503848 [ 74.407856][ T4769] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000037 [ 74.410066][ T4769] Call trace: [ 74.410988][ T4769] kernfs_remove_by_name_ns+0xcc/0x158 [ 74.412565][ T4769] sysfs_remove_group+0xf8/0x288 [ 74.413974][ T4769] sysfs_remove_groups+0x5c/0xb4 [ 74.415396][ T4769] __kobject_del+0x90/0x2d4 [ 74.416637][ T4769] kobject_del+0x48/0x68 [ 74.417797][ T4769] blk_mq_sysfs_unregister+0x198/0x268 [ 74.419374][ T4769] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 74.420937][ T4769] nbd_start_device+0x14c/0xb40 [ 74.422309][ T4769] nbd_ioctl+0x514/0xc50 [ 74.423507][ T4769] blkdev_ioctl+0x5f8/0xbb8 [ 74.423841][ T4778] FAULT_INJECTION: forcing a failure. [ 74.423841][ T4778] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 74.424752][ T4769] block_ioctl+0xa4/0x118 [ 74.424768][ T4769] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.424780][ T4769] invoke_syscall+0x98/0x2b8 [ 74.432136][ T4769] el0_svc_common+0x138/0x258 [ 74.433446][ T4769] do_el0_svc+0x58/0x14c [ 74.434571][ T4769] el0_svc+0x78/0x1e0 [ 74.435659][ T4769] el0t_64_sync_handler+0xcc/0xe4 [ 74.437111][ T4769] el0t_64_sync+0x1a0/0x1a4 [ 74.438416][ T4769] irq event stamp: 2508 [ 74.439599][ T4769] hardirqs last enabled at (2507): [] finish_lock_switch+0xb0/0x1c4 [ 74.442329][ T4769] hardirqs last disabled at (2508): [] el1_dbg+0x24/0x80 [ 74.442916][ T4778] CPU: 1 PID: 4778 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 74.444703][ T4769] softirqs last enabled at (2476): [] handle_softirqs+0xa4c/0xbf0 [ 74.447485][ T4778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.450051][ T4769] softirqs last disabled at (2111): [] __irq_exit_rcu+0x240/0x440 [ 74.452952][ T4778] Call trace: [ 74.455455][ T4769] ---[ end trace 7c5743ebc6d8c252 ]--- [ 74.456361][ T4778] dump_backtrace+0x0/0x43c [ 74.459081][ T4778] show_stack+0x2c/0x3c [ 74.460286][ T4778] __dump_stack+0x30/0x40 [ 74.461493][ T4778] dump_stack_lvl+0xf8/0x160 [ 74.462778][ T4778] dump_stack+0x1c/0x5c [ 74.463892][ T4778] should_fail+0x3c0/0x51c [ 74.465078][ T4778] should_fail_alloc_page+0x74/0xa8 [ 74.466493][ T4778] prepare_alloc_pages+0x160/0x460 [ 74.467943][ T4778] __alloc_pages+0x108/0x470 [ 74.469215][ T4778] alloc_pages+0x34c/0x5c0 [ 74.470479][ T4778] new_slab+0xe0/0x55c [ 74.471638][ T4778] ___slab_alloc+0x6c0/0xda8 [ 74.472965][ T4778] __slab_alloc+0x68/0xc0 [ 74.474135][ T4778] __kmalloc_node+0x310/0x520 [ 74.475463][ T4778] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 74.477132][ T4778] nbd_start_device+0x14c/0xb40 [ 74.478472][ T4778] nbd_ioctl+0x514/0xc50 [ 74.479628][ T4778] blkdev_ioctl+0x5f8/0xbb8 [ 74.480874][ T4778] block_ioctl+0xa4/0x118 [ 74.482041][ T4778] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.483366][ T4778] invoke_syscall+0x98/0x2b8 [ 74.484772][ T4778] el0_svc_common+0x138/0x258 [ 74.486074][ T4778] do_el0_svc+0x58/0x14c [ 74.487194][ T4778] el0_svc+0x78/0x1e0 [ 74.488330][ T4778] el0t_64_sync_handler+0xcc/0xe4 [ 74.489679][ T4778] el0t_64_sync+0x1a0/0x1a4 [ 74.506005][ T4769] ------------[ cut here ]------------ [ 74.507881][ T4769] kernfs: can not remove 'cpu_list', no directory [ 74.509980][ T4769] WARNING: CPU: 0 PID: 4769 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 74.512654][ T4769] Modules linked in: [ 74.513728][ T4769] CPU: 0 PID: 4769 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 74.516395][ T4769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.519242][ T4769] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 74.521461][ T4769] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.523110][ T4769] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 74.524721][ T4769] sp : ffff800020107790 [ 74.525836][ T4769] x29: ffff800020107790 x28: ffff0000cc831000 x27: 0000000000000000 [ 74.528013][ T4769] x26: 0000000000000002 x25: ffff8000148eabb8 x24: 1ffff000022f275c [ 74.530320][ T4769] x23: dfff800000000000 x22: ffff8000148eaca0 x21: 0000000000000000 [ 74.532583][ T4769] x20: 0000000000000000 x19: ffff800011793bc0 x18: 0000000000000002 [ 74.534791][ T4769] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 74.536973][ T4769] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 74.539092][ T4769] x11: 0000000000000000 x10: 0000000000000000 x9 : c415659d3bfebc00 [ 74.541303][ T4769] x8 : c415659d3bfebc00 x7 : 0000000000000000 x6 : 0000000000000000 [ 74.543533][ T4769] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008503848 [ 74.545836][ T4769] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002f [ 74.548098][ T4769] Call trace: [ 74.549048][ T4769] kernfs_remove_by_name_ns+0xcc/0x158 [ 74.550538][ T4769] sysfs_remove_group+0xf8/0x288 [ 74.551949][ T4769] sysfs_remove_groups+0x5c/0xb4 [ 74.553247][ T4769] __kobject_del+0x90/0x2d4 [ 74.554478][ T4769] kobject_del+0x48/0x68 [ 74.555619][ T4769] blk_mq_sysfs_unregister+0x198/0x268 [ 74.557075][ T4769] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 74.558627][ T4769] nbd_start_device+0x14c/0xb40 [ 74.559965][ T4769] nbd_ioctl+0x514/0xc50 [ 74.561105][ T4769] blkdev_ioctl+0x5f8/0xbb8 [ 74.562336][ T4769] block_ioctl+0xa4/0x118 [ 74.563524][ T4769] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.564860][ T4769] invoke_syscall+0x98/0x2b8 [ 74.566095][ T4769] el0_svc_common+0x138/0x258 [ 74.567411][ T4769] do_el0_svc+0x58/0x14c [ 74.568582][ T4769] el0_svc+0x78/0x1e0 [ 74.569717][ T4769] el0t_64_sync_handler+0xcc/0xe4 [ 74.571107][ T4769] el0t_64_sync+0x1a0/0x1a4 [ 74.572324][ T4769] irq event stamp: 3060 [ 74.573465][ T4769] hardirqs last enabled at (3059): [] finish_lock_switch+0xb0/0x1c4 [ 74.576147][ T4769] hardirqs last disabled at (3060): [] el1_dbg+0x24/0x80 [ 74.578523][ T4769] softirqs last enabled at (3030): [] handle_softirqs+0xa4c/0xbf0 [ 74.581097][ T4769] softirqs last disabled at (2513): [] __irq_exit_rcu+0x240/0x440 [ 74.583630][ T4769] ---[ end trace 7c5743ebc6d8c253 ]--- [ 74.612366][ T4769] FAULT_INJECTION: forcing a failure. [ 74.612366][ T4769] name failslab, interval 1, probability 0, space 0, times 0 [ 74.626991][ T4769] CPU: 0 PID: 4769 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 74.629763][ T4769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.632472][ T4769] Call trace: [ 74.633338][ T4769] dump_backtrace+0x0/0x43c [ 74.634563][ T4769] show_stack+0x2c/0x3c [ 74.635662][ T4769] __dump_stack+0x30/0x40 [ 74.636876][ T4769] dump_stack_lvl+0xf8/0x160 [ 74.638129][ T4769] dump_stack+0x1c/0x5c [ 74.639254][ T4769] should_fail+0x3c0/0x51c [ 74.640486][ T4769] __should_failslab+0xbc/0x10c [ 74.641838][ T4769] should_failslab+0x10/0x28 [ 74.643107][ T4769] slab_pre_alloc_hook+0x64/0xec [ 74.644467][ T4769] __kmalloc_node+0xb8/0x520 [ 74.645730][ T4769] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.647264][ T4769] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.648807][ T4769] nbd_start_device+0x14c/0xb40 [ 74.650148][ T4769] nbd_ioctl+0x514/0xc50 [ 74.651291][ T4769] blkdev_ioctl+0x5f8/0xbb8 [ 74.652508][ T4769] block_ioctl+0xa4/0x118 [ 74.653732][ T4769] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.655088][ T4769] invoke_syscall+0x98/0x2b8 [ 74.656314][ T4769] el0_svc_common+0x138/0x258 [ 74.657630][ T4769] do_el0_svc+0x58/0x14c [ 74.658840][ T4769] el0_svc+0x78/0x1e0 [ 74.659923][ T4769] el0t_64_sync_handler+0xcc/0xe4 [ 74.661344][ T4769] el0t_64_sync+0x1a0/0x1a4 [ 74.673705][ T4796] block nbd4: shutting down sockets [ 74.676009][ T4799] block nbd2: shutting down sockets [ 74.677192][ T4769] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.677564][ T4800] block nbd3: shutting down sockets [ 74.681808][ T4793] FAULT_INJECTION: forcing a failure. [ 74.681808][ T4793] name failslab, interval 1, probability 0, space 0, times 0 [ 74.687662][ T4793] CPU: 1 PID: 4793 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 74.690378][ T4793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.693106][ T4793] Call trace: [ 74.694009][ T4793] dump_backtrace+0x0/0x43c [ 74.695218][ T4793] show_stack+0x2c/0x3c [ 74.696327][ T4793] __dump_stack+0x30/0x40 [ 74.697510][ T4793] dump_stack_lvl+0xf8/0x160 [ 74.698768][ T4793] dump_stack+0x1c/0x5c [ 74.699909][ T4793] should_fail+0x3c0/0x51c [ 74.701072][ T4793] __should_failslab+0xbc/0x10c [ 74.702428][ T4793] should_failslab+0x10/0x28 [ 74.703713][ T4793] slab_pre_alloc_hook+0x64/0xec [ 74.705028][ T4793] kmem_cache_alloc+0x94/0x3e4 [ 74.706254][ T4793] new_inode_pseudo+0x10c/0x1fc [ 74.707554][ T4793] new_inode+0x38/0x174 [ 74.708760][ T4793] debugfs_create_dir+0xec/0x3f4 [ 74.710124][ T4793] nbd_start_device+0x3c8/0xb40 [ 74.711469][ T4793] nbd_ioctl+0x514/0xc50 [ 74.712594][ T4793] blkdev_ioctl+0x5f8/0xbb8 [ 74.713822][ T4793] block_ioctl+0xa4/0x118 [ 74.714995][ T4793] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.716399][ T4793] invoke_syscall+0x98/0x2b8 [ 74.717673][ T4793] el0_svc_common+0x138/0x258 [ 74.718898][ T4793] do_el0_svc+0x58/0x14c [ 74.720083][ T4793] el0_svc+0x78/0x1e0 [ 74.721164][ T4793] el0t_64_sync_handler+0xcc/0xe4 [ 74.722497][ T4793] el0t_64_sync+0x1a0/0x1a4 [ 74.727971][ T4793] debugfs: out of free dentries, can not create directory 'nbd4' [ 74.730641][ T4793] block nbd4: Failed to create debugfs dir for 'nbd4' [ 74.740488][ T4787] FAULT_INJECTION: forcing a failure. [ 74.740488][ T4787] name failslab, interval 1, probability 0, space 0, times 0 [ 74.757394][ T4787] CPU: 0 PID: 4787 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 74.758160][ T4792] FAULT_INJECTION: forcing a failure. [ 74.758160][ T4792] name failslab, interval 1, probability 0, space 0, times 0 [ 74.760154][ T4787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.760165][ T4787] Call trace: [ 74.760169][ T4787] dump_backtrace+0x0/0x43c [ 74.760186][ T4787] show_stack+0x2c/0x3c [ 74.760196][ T4787] __dump_stack+0x30/0x40 [ 74.760206][ T4787] dump_stack_lvl+0xf8/0x160 [ 74.771809][ T4787] dump_stack+0x1c/0x5c [ 74.772956][ T4787] should_fail+0x3c0/0x51c [ 74.774174][ T4787] __should_failslab+0xbc/0x10c [ 74.775501][ T4787] should_failslab+0x10/0x28 [ 74.776725][ T4787] slab_pre_alloc_hook+0x64/0xec [ 74.778033][ T4787] __kmalloc_node+0xb8/0x520 [ 74.779291][ T4787] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.780759][ T4787] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.782257][ T4787] nbd_start_device+0x14c/0xb40 [ 74.783609][ T4787] nbd_ioctl+0x514/0xc50 [ 74.784716][ T4787] blkdev_ioctl+0x5f8/0xbb8 [ 74.785921][ T4787] block_ioctl+0xa4/0x118 [ 74.787057][ T4787] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.788407][ T4787] invoke_syscall+0x98/0x2b8 [ 74.789692][ T4787] el0_svc_common+0x138/0x258 [ 74.790972][ T4787] do_el0_svc+0x58/0x14c [ 74.792110][ T4787] el0_svc+0x78/0x1e0 [ 74.793173][ T4787] el0t_64_sync_handler+0xcc/0xe4 [ 74.794589][ T4787] el0t_64_sync+0x1a0/0x1a4 [ 74.801836][ T7] cfg80211: failed to load regulatory.db [ 74.803593][ T4792] CPU: 0 PID: 4792 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 74.806388][ T4792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.809088][ T4792] Call trace: [ 74.810007][ T4792] dump_backtrace+0x0/0x43c [ 74.811203][ T4792] show_stack+0x2c/0x3c [ 74.812301][ T4792] __dump_stack+0x30/0x40 [ 74.813486][ T4792] dump_stack_lvl+0xf8/0x160 [ 74.814711][ T4792] dump_stack+0x1c/0x5c [ 74.815823][ T4792] should_fail+0x3c0/0x51c [ 74.817054][ T4792] __should_failslab+0xbc/0x10c [ 74.818396][ T4792] should_failslab+0x10/0x28 [ 74.819674][ T4792] slab_pre_alloc_hook+0x64/0xec [ 74.821069][ T4792] __kmalloc_node+0xb8/0x520 [ 74.822367][ T4792] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.823825][ T4792] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.825427][ T4792] nbd_start_device+0x14c/0xb40 [ 74.826781][ T4792] nbd_ioctl+0x514/0xc50 [ 74.827984][ T4792] blkdev_ioctl+0x5f8/0xbb8 [ 74.829254][ T4792] block_ioctl+0xa4/0x118 [ 74.830449][ T4792] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.831810][ T4792] invoke_syscall+0x98/0x2b8 [ 74.833077][ T4792] el0_svc_common+0x138/0x258 [ 74.834394][ T4792] do_el0_svc+0x58/0x14c [ 74.835580][ T4792] el0_svc+0x78/0x1e0 [ 74.836654][ T4792] el0t_64_sync_handler+0xcc/0xe4 [ 74.838074][ T4792] el0t_64_sync+0x1a0/0x1a4 [ 74.856532][ T4806] block nbd0: shutting down sockets [ 74.895849][ T4812] FAULT_INJECTION: forcing a failure. [ 74.895849][ T4812] name failslab, interval 1, probability 0, space 0, times 0 [ 74.899772][ T4812] CPU: 1 PID: 4812 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 74.902534][ T4812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 74.905280][ T4812] Call trace: [ 74.906156][ T4812] dump_backtrace+0x0/0x43c [ 74.907381][ T4812] show_stack+0x2c/0x3c [ 74.908522][ T4812] __dump_stack+0x30/0x40 [ 74.909682][ T4812] dump_stack_lvl+0xf8/0x160 [ 74.910897][ T4812] dump_stack+0x1c/0x5c [ 74.912029][ T4812] should_fail+0x3c0/0x51c [ 74.913222][ T4812] __should_failslab+0xbc/0x10c [ 74.914562][ T4812] should_failslab+0x10/0x28 [ 74.915838][ T4812] slab_pre_alloc_hook+0x64/0xec [ 74.917152][ T4812] kmem_cache_alloc+0x94/0x3e4 [ 74.918534][ T4812] new_inode_pseudo+0x10c/0x1fc [ 74.919904][ T4812] new_inode+0x38/0x174 [ 74.921015][ T4812] debugfs_create_dir+0xec/0x3f4 [ 74.922434][ T4812] nbd_start_device+0x3c8/0xb40 [ 74.923734][ T4812] nbd_ioctl+0x514/0xc50 [ 74.924903][ T4812] blkdev_ioctl+0x5f8/0xbb8 [ 74.926193][ T4812] block_ioctl+0xa4/0x118 [ 74.927365][ T4812] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.928711][ T4812] invoke_syscall+0x98/0x2b8 [ 74.929964][ T4812] el0_svc_common+0x138/0x258 [ 74.931303][ T4812] do_el0_svc+0x58/0x14c [ 74.932497][ T4812] el0_svc+0x78/0x1e0 [ 74.933575][ T4812] el0t_64_sync_handler+0xcc/0xe4 [ 74.934963][ T4812] el0t_64_sync+0x1a0/0x1a4 [ 74.959101][ T4812] debugfs: out of free dentries, can not create directory 'nbd0' [ 74.963874][ T4792] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.974099][ T4812] block nbd0: Failed to create debugfs dir for 'nbd0' [ 75.004148][ T4818] block nbd1: Device being setup by another task [ 75.006435][ T4809] block nbd1: shutting down sockets [ 75.006594][ T4811] block nbd4: shutting down sockets [ 75.015075][ T4809] FAULT_INJECTION: forcing a failure. [ 75.015075][ T4809] name failslab, interval 1, probability 0, space 0, times 0 [ 75.033343][ T4809] CPU: 0 PID: 4809 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 75.036185][ T4809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.038911][ T4809] Call trace: [ 75.039809][ T4809] dump_backtrace+0x0/0x43c [ 75.041034][ T4809] show_stack+0x2c/0x3c [ 75.042250][ T4809] __dump_stack+0x30/0x40 [ 75.043443][ T4809] dump_stack_lvl+0xf8/0x160 [ 75.044719][ T4809] dump_stack+0x1c/0x5c [ 75.045836][ T4809] should_fail+0x3c0/0x51c [ 75.047083][ T4809] __should_failslab+0xbc/0x10c [ 75.048458][ T4809] should_failslab+0x10/0x28 [ 75.049665][ T4809] slab_pre_alloc_hook+0x64/0xec [ 75.051103][ T4809] kmem_cache_alloc+0x94/0x3e4 [ 75.052375][ T4809] new_inode_pseudo+0x10c/0x1fc [ 75.053751][ T4809] new_inode+0x38/0x174 [ 75.054879][ T4809] debugfs_create_dir+0xec/0x3f4 [ 75.056189][ T4809] nbd_start_device+0x3c8/0xb40 [ 75.057597][ T4809] nbd_ioctl+0x514/0xc50 [ 75.058751][ T4809] blkdev_ioctl+0x5f8/0xbb8 [ 75.060008][ T4809] block_ioctl+0xa4/0x118 [ 75.061160][ T4809] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.062501][ T4809] invoke_syscall+0x98/0x2b8 [ 75.063743][ T4809] el0_svc_common+0x138/0x258 [ 75.064997][ T4809] do_el0_svc+0x58/0x14c [ 75.066173][ T4809] el0_svc+0x78/0x1e0 [ 75.067289][ T4809] el0t_64_sync_handler+0xcc/0xe4 [ 75.068697][ T4809] el0t_64_sync+0x1a0/0x1a4 [ 75.073420][ T4787] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.142519][ T4809] debugfs: out of free dentries, can not create directory 'nbd1' [ 75.149040][ T4809] block nbd1: Failed to create debugfs dir for 'nbd1' [ 75.151336][ T4811] FAULT_INJECTION: forcing a failure. [ 75.151336][ T4811] name failslab, interval 1, probability 0, space 0, times 0 [ 75.155697][ T4823] block nbd0: shutting down sockets [ 75.163581][ T4811] CPU: 1 PID: 4811 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 75.166303][ T4811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.169021][ T4811] Call trace: [ 75.169899][ T4811] dump_backtrace+0x0/0x43c [ 75.171067][ T4811] show_stack+0x2c/0x3c [ 75.172216][ T4811] __dump_stack+0x30/0x40 [ 75.173446][ T4811] dump_stack_lvl+0xf8/0x160 [ 75.174661][ T4811] dump_stack+0x1c/0x5c [ 75.175790][ T4811] should_fail+0x3c0/0x51c [ 75.176635][ T4826] block nbd3: shutting down sockets [ 75.176966][ T4811] __should_failslab+0xbc/0x10c [ 75.179693][ T4811] should_failslab+0x10/0x28 [ 75.180996][ T4811] slab_pre_alloc_hook+0x64/0xec [ 75.182326][ T4811] kmem_cache_alloc+0x94/0x3e4 [ 75.183628][ T4811] new_inode_pseudo+0x10c/0x1fc [ 75.184957][ T4811] new_inode+0x38/0x174 [ 75.186080][ T4811] debugfs_create_dir+0xec/0x3f4 [ 75.187431][ T4811] nbd_start_device+0x3c8/0xb40 [ 75.188806][ T4811] nbd_ioctl+0x514/0xc50 [ 75.189944][ T4811] blkdev_ioctl+0x5f8/0xbb8 [ 75.191207][ T4811] block_ioctl+0xa4/0x118 [ 75.192399][ T4811] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.193716][ T4811] invoke_syscall+0x98/0x2b8 [ 75.194947][ T4811] el0_svc_common+0x138/0x258 [ 75.196154][ T4811] do_el0_svc+0x58/0x14c [ 75.197332][ T4811] el0_svc+0x78/0x1e0 [ 75.198410][ T4811] el0t_64_sync_handler+0xcc/0xe4 [ 75.199764][ T4811] el0t_64_sync+0x1a0/0x1a4 [ 75.217086][ T4811] debugfs: out of free dentries, can not create directory 'nbd4' [ 75.219881][ T4830] FAULT_INJECTION: forcing a failure. [ 75.219881][ T4830] name failslab, interval 1, probability 0, space 0, times 0 [ 75.234070][ T4830] CPU: 1 PID: 4830 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 75.236939][ T4830] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.239738][ T4830] Call trace: [ 75.240601][ T4830] dump_backtrace+0x0/0x43c [ 75.241833][ T4830] show_stack+0x2c/0x3c [ 75.242992][ T4830] __dump_stack+0x30/0x40 [ 75.244170][ T4830] dump_stack_lvl+0xf8/0x160 [ 75.245464][ T4830] dump_stack+0x1c/0x5c [ 75.246609][ T4830] should_fail+0x3c0/0x51c [ 75.247786][ T4830] __should_failslab+0xbc/0x10c [ 75.247796][ T4826] FAULT_INJECTION: forcing a failure. [ 75.247796][ T4826] name failslab, interval 1, probability 0, space 0, times 0 [ 75.249113][ T4830] should_failslab+0x10/0x28 [ 75.249128][ T4830] slab_pre_alloc_hook+0x64/0xec [ 75.249138][ T4830] kmem_cache_alloc+0x94/0x3e4 [ 75.256420][ T4830] __d_alloc+0x3c/0x65c [ 75.257504][ T4830] d_alloc_parallel+0x80/0x1104 [ 75.258872][ T4830] __lookup_slow+0x104/0x380 [ 75.260064][ T4830] lookup_one_len+0x178/0x28c [ 75.261312][ T4830] start_creating+0x19c/0x2e0 [ 75.262563][ T4830] debugfs_create_dir+0x30/0x3f4 [ 75.263878][ T4830] nbd_start_device+0x3c8/0xb40 [ 75.265193][ T4830] nbd_ioctl+0x514/0xc50 [ 75.266380][ T4830] blkdev_ioctl+0x5f8/0xbb8 [ 75.267716][ T4830] block_ioctl+0xa4/0x118 [ 75.268845][ T4830] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.270247][ T4830] invoke_syscall+0x98/0x2b8 [ 75.271456][ T4830] el0_svc_common+0x138/0x258 [ 75.272742][ T4830] do_el0_svc+0x58/0x14c [ 75.273868][ T4830] el0_svc+0x78/0x1e0 [ 75.274942][ T4830] el0t_64_sync_handler+0xcc/0xe4 [ 75.276261][ T4830] el0t_64_sync+0x1a0/0x1a4 [ 75.277511][ T4826] CPU: 0 PID: 4826 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 75.280287][ T4826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.283141][ T4826] Call trace: [ 75.283895][ T4811] block nbd4: Failed to create debugfs dir for 'nbd4' [ 75.284016][ T4826] dump_backtrace+0x0/0x43c [ 75.287200][ T4826] show_stack+0x2c/0x3c [ 75.288349][ T4826] __dump_stack+0x30/0x40 [ 75.289564][ T4826] dump_stack_lvl+0xf8/0x160 [ 75.290888][ T4826] dump_stack+0x1c/0x5c [ 75.292101][ T4826] should_fail+0x3c0/0x51c [ 75.293317][ T4826] __should_failslab+0xbc/0x10c [ 75.294696][ T4826] should_failslab+0x10/0x28 [ 75.295973][ T4826] slab_pre_alloc_hook+0x64/0xec [ 75.297319][ T4826] __kmalloc_node+0xb8/0x520 [ 75.298640][ T4826] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.300103][ T4826] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.301673][ T4826] nbd_start_device+0x14c/0xb40 [ 75.302982][ T4826] nbd_ioctl+0x514/0xc50 [ 75.304126][ T4826] blkdev_ioctl+0x5f8/0xbb8 [ 75.305479][ T4826] block_ioctl+0xa4/0x118 [ 75.306678][ T4826] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.308060][ T4826] invoke_syscall+0x98/0x2b8 [ 75.309334][ T4826] el0_svc_common+0x138/0x258 [ 75.310639][ T4826] do_el0_svc+0x58/0x14c [ 75.311782][ T4826] el0_svc+0x78/0x1e0 [ 75.312906][ T4826] el0t_64_sync_handler+0xcc/0xe4 [ 75.314272][ T4826] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:15 executed programs: 55 [ 75.391850][ T4830] block nbd0: Failed to create debugfs dir for 'nbd0' [ 75.453507][ T4841] block nbd1: shutting down sockets [ 75.474985][ T4836] block nbd4: shutting down sockets [ 75.482603][ T4826] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.485257][ T4836] FAULT_INJECTION: forcing a failure. [ 75.485257][ T4836] name failslab, interval 1, probability 0, space 0, times 0 [ 75.492533][ T4836] CPU: 1 PID: 4836 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 75.495269][ T4836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.497955][ T4836] Call trace: [ 75.498684][ T4834] FAULT_INJECTION: forcing a failure. [ 75.498684][ T4834] name failslab, interval 1, probability 0, space 0, times 0 [ 75.498815][ T4836] dump_backtrace+0x0/0x43c [ 75.503465][ T4836] show_stack+0x2c/0x3c [ 75.504616][ T4836] __dump_stack+0x30/0x40 [ 75.505798][ T4836] dump_stack_lvl+0xf8/0x160 [ 75.507073][ T4836] dump_stack+0x1c/0x5c [ 75.508190][ T4836] should_fail+0x3c0/0x51c [ 75.509381][ T4836] __should_failslab+0xbc/0x10c [ 75.510686][ T4836] should_failslab+0x10/0x28 [ 75.511935][ T4836] slab_pre_alloc_hook+0x64/0xec [ 75.513242][ T4836] kmem_cache_alloc+0x94/0x3e4 [ 75.514542][ T4836] new_inode_pseudo+0x10c/0x1fc [ 75.515882][ T4836] new_inode+0x38/0x174 [ 75.517062][ T4836] debugfs_create_dir+0xec/0x3f4 [ 75.518347][ T4836] nbd_start_device+0x3c8/0xb40 [ 75.519680][ T4836] nbd_ioctl+0x514/0xc50 [ 75.520836][ T4836] blkdev_ioctl+0x5f8/0xbb8 [ 75.522076][ T4836] block_ioctl+0xa4/0x118 [ 75.523281][ T4836] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.524577][ T4836] invoke_syscall+0x98/0x2b8 [ 75.525877][ T4836] el0_svc_common+0x138/0x258 [ 75.527155][ T4836] do_el0_svc+0x58/0x14c [ 75.528318][ T4836] el0_svc+0x78/0x1e0 [ 75.529406][ T4836] el0t_64_sync_handler+0xcc/0xe4 [ 75.530784][ T4836] el0t_64_sync+0x1a0/0x1a4 [ 75.539549][ T4834] CPU: 0 PID: 4834 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 75.542346][ T4834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.545113][ T4834] Call trace: [ 75.545990][ T4834] dump_backtrace+0x0/0x43c [ 75.547189][ T4834] show_stack+0x2c/0x3c [ 75.548336][ T4834] __dump_stack+0x30/0x40 [ 75.549468][ T4834] dump_stack_lvl+0xf8/0x160 [ 75.550732][ T4834] dump_stack+0x1c/0x5c [ 75.551847][ T4834] should_fail+0x3c0/0x51c [ 75.553071][ T4834] __should_failslab+0xbc/0x10c [ 75.554446][ T4834] should_failslab+0x10/0x28 [ 75.555707][ T4834] slab_pre_alloc_hook+0x64/0xec [ 75.557026][ T4834] __kmalloc_node+0xb8/0x520 [ 75.558275][ T4834] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.559721][ T4834] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.561302][ T4834] nbd_start_device+0x14c/0xb40 [ 75.562579][ T4834] nbd_ioctl+0x514/0xc50 [ 75.563714][ T4834] blkdev_ioctl+0x5f8/0xbb8 [ 75.564923][ T4834] block_ioctl+0xa4/0x118 [ 75.566065][ T4834] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.567395][ T4834] invoke_syscall+0x98/0x2b8 [ 75.568701][ T4834] el0_svc_common+0x138/0x258 [ 75.569980][ T4834] do_el0_svc+0x58/0x14c [ 75.570010][ T4836] debugfs: out of free dentries, can not create directory 'nbd4' [ 75.571122][ T4834] el0_svc+0x78/0x1e0 [ 75.571137][ T4834] el0t_64_sync_handler+0xcc/0xe4 [ 75.571146][ T4834] el0t_64_sync+0x1a0/0x1a4 [ 75.585045][ T4836] block nbd4: Failed to create debugfs dir for 'nbd4' [ 75.594497][ T4840] block nbd2: shutting down sockets [ 75.615684][ T4844] block nbd0: shutting down sockets [ 75.640567][ T4844] FAULT_INJECTION: forcing a failure. [ 75.640567][ T4844] name failslab, interval 1, probability 0, space 0, times 0 [ 75.665076][ T4834] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.666660][ T4844] CPU: 0 PID: 4844 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 75.669611][ T4844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.672354][ T4844] Call trace: [ 75.673221][ T4844] dump_backtrace+0x0/0x43c [ 75.674444][ T4844] show_stack+0x2c/0x3c [ 75.675561][ T4844] __dump_stack+0x30/0x40 [ 75.676783][ T4844] dump_stack_lvl+0xf8/0x160 [ 75.677723][ T4840] FAULT_INJECTION: forcing a failure. [ 75.677723][ T4840] name failslab, interval 1, probability 0, space 0, times 0 [ 75.678075][ T4844] dump_stack+0x1c/0x5c [ 75.682653][ T4844] should_fail+0x3c0/0x51c [ 75.683844][ T4844] __should_failslab+0xbc/0x10c [ 75.685115][ T4844] should_failslab+0x10/0x28 [ 75.686353][ T4844] slab_pre_alloc_hook+0x64/0xec [ 75.687735][ T4844] kmem_cache_alloc+0x94/0x3e4 [ 75.689071][ T4844] new_inode_pseudo+0x10c/0x1fc [ 75.690354][ T4844] new_inode+0x38/0x174 [ 75.691461][ T4844] debugfs_create_dir+0xec/0x3f4 [ 75.692795][ T4844] nbd_start_device+0x3c8/0xb40 [ 75.694069][ T4844] nbd_ioctl+0x514/0xc50 [ 75.695215][ T4844] blkdev_ioctl+0x5f8/0xbb8 [ 75.696506][ T4844] block_ioctl+0xa4/0x118 [ 75.697667][ T4844] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.698967][ T4844] invoke_syscall+0x98/0x2b8 [ 75.700238][ T4844] el0_svc_common+0x138/0x258 [ 75.701584][ T4844] do_el0_svc+0x58/0x14c [ 75.702729][ T4844] el0_svc+0x78/0x1e0 [ 75.703901][ T4844] el0t_64_sync_handler+0xcc/0xe4 [ 75.705295][ T4844] el0t_64_sync+0x1a0/0x1a4 [ 75.706500][ T4840] CPU: 1 PID: 4840 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 75.709201][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.711906][ T4840] Call trace: [ 75.712794][ T4840] dump_backtrace+0x0/0x43c [ 75.714020][ T4840] show_stack+0x2c/0x3c [ 75.715183][ T4840] __dump_stack+0x30/0x40 [ 75.716361][ T4840] dump_stack_lvl+0xf8/0x160 [ 75.717626][ T4840] dump_stack+0x1c/0x5c [ 75.718747][ T4840] should_fail+0x3c0/0x51c [ 75.719893][ T4840] __should_failslab+0xbc/0x10c [ 75.721178][ T4840] should_failslab+0x10/0x28 [ 75.722479][ T4840] slab_pre_alloc_hook+0x64/0xec [ 75.723767][ T4840] __kmalloc_node+0xb8/0x520 [ 75.724952][ T4840] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 75.726487][ T4840] nbd_start_device+0x14c/0xb40 [ 75.727770][ T4840] nbd_ioctl+0x514/0xc50 [ 75.728973][ T4840] blkdev_ioctl+0x5f8/0xbb8 [ 75.730185][ T4840] block_ioctl+0xa4/0x118 [ 75.731347][ T4840] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.732685][ T4840] invoke_syscall+0x98/0x2b8 [ 75.733911][ T4840] el0_svc_common+0x138/0x258 [ 75.735166][ T4840] do_el0_svc+0x58/0x14c [ 75.736370][ T4840] el0_svc+0x78/0x1e0 [ 75.737486][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 75.738862][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 75.749699][ T4844] debugfs: out of free dentries, can not create directory 'nbd0' [ 75.760029][ T4844] block nbd0: Failed to create debugfs dir for 'nbd0' [ 75.838795][ T4852] block nbd3: shutting down sockets [ 75.840941][ T4853] block nbd4: shutting down sockets [ 75.859502][ T4853] FAULT_INJECTION: forcing a failure. [ 75.859502][ T4853] name failslab, interval 1, probability 0, space 0, times 0 [ 75.863135][ T4853] CPU: 0 PID: 4853 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 75.865895][ T4853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.868634][ T4853] Call trace: [ 75.869512][ T4853] dump_backtrace+0x0/0x43c [ 75.870762][ T4853] show_stack+0x2c/0x3c [ 75.871866][ T4853] __dump_stack+0x30/0x40 [ 75.873037][ T4853] dump_stack_lvl+0xf8/0x160 [ 75.874313][ T4853] dump_stack+0x1c/0x5c [ 75.875457][ T4853] should_fail+0x3c0/0x51c [ 75.876713][ T4853] __should_failslab+0xbc/0x10c [ 75.878008][ T4853] should_failslab+0x10/0x28 [ 75.879257][ T4853] slab_pre_alloc_hook+0x64/0xec [ 75.880590][ T4853] kmem_cache_alloc+0x94/0x3e4 [ 75.881904][ T4853] new_inode_pseudo+0x10c/0x1fc [ 75.883313][ T4853] new_inode+0x38/0x174 [ 75.884416][ T4853] debugfs_create_dir+0xec/0x3f4 [ 75.885797][ T4853] nbd_start_device+0x3c8/0xb40 [ 75.887108][ T4853] nbd_ioctl+0x514/0xc50 [ 75.888254][ T4853] blkdev_ioctl+0x5f8/0xbb8 [ 75.889465][ T4853] block_ioctl+0xa4/0x118 [ 75.890668][ T4853] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.892040][ T4853] invoke_syscall+0x98/0x2b8 [ 75.893286][ T4853] el0_svc_common+0x138/0x258 [ 75.894574][ T4853] do_el0_svc+0x58/0x14c [ 75.895707][ T4853] el0_svc+0x78/0x1e0 [ 75.896769][ T4853] el0t_64_sync_handler+0xcc/0xe4 [ 75.898120][ T4853] el0t_64_sync+0x1a0/0x1a4 [ 75.923612][ T4866] block nbd0: shutting down sockets [ 75.929733][ T4865] block nbd1: shutting down sockets [ 75.943886][ T4852] FAULT_INJECTION: forcing a failure. [ 75.943886][ T4852] name failslab, interval 1, probability 0, space 0, times 0 [ 75.947570][ T4852] CPU: 0 PID: 4852 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 75.950278][ T4852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 75.953023][ T4852] Call trace: [ 75.953930][ T4852] dump_backtrace+0x0/0x43c [ 75.955189][ T4852] show_stack+0x2c/0x3c [ 75.956398][ T4852] __dump_stack+0x30/0x40 [ 75.957604][ T4852] dump_stack_lvl+0xf8/0x160 [ 75.958826][ T4852] dump_stack+0x1c/0x5c [ 75.960050][ T4852] should_fail+0x3c0/0x51c [ 75.961456][ T4852] __should_failslab+0xbc/0x10c [ 75.962957][ T4852] should_failslab+0x10/0x28 [ 75.964191][ T4852] slab_pre_alloc_hook+0x64/0xec [ 75.965553][ T4852] __kmalloc_node+0xb8/0x520 [ 75.966812][ T4852] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.968303][ T4852] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.969862][ T4852] nbd_start_device+0x14c/0xb40 [ 75.971156][ T4852] nbd_ioctl+0x514/0xc50 [ 75.972290][ T4852] blkdev_ioctl+0x5f8/0xbb8 [ 75.973597][ T4852] block_ioctl+0xa4/0x118 [ 75.974822][ T4852] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.976173][ T4852] invoke_syscall+0x98/0x2b8 [ 75.977443][ T4852] el0_svc_common+0x138/0x258 [ 75.978759][ T4852] do_el0_svc+0x58/0x14c [ 75.979904][ T4852] el0_svc+0x78/0x1e0 [ 75.981026][ T4852] el0t_64_sync_handler+0xcc/0xe4 [ 75.982426][ T4852] el0t_64_sync+0x1a0/0x1a4 [ 75.992244][ T4853] debugfs: out of free dentries, can not create directory 'nbd4' [ 76.009345][ T4860] FAULT_INJECTION: forcing a failure. [ 76.009345][ T4860] name failslab, interval 1, probability 0, space 0, times 0 [ 76.012837][ T4860] CPU: 0 PID: 4860 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 76.014674][ T4853] block nbd4: Failed to create debugfs dir for 'nbd4' [ 76.015508][ T4860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.015519][ T4860] Call trace: [ 76.015522][ T4860] dump_backtrace+0x0/0x43c [ 76.022063][ T4860] show_stack+0x2c/0x3c [ 76.023190][ T4860] __dump_stack+0x30/0x40 [ 76.024397][ T4860] dump_stack_lvl+0xf8/0x160 [ 76.025631][ T4860] dump_stack+0x1c/0x5c [ 76.026800][ T4860] should_fail+0x3c0/0x51c [ 76.028016][ T4860] __should_failslab+0xbc/0x10c [ 76.029320][ T4860] should_failslab+0x10/0x28 [ 76.030595][ T4860] slab_pre_alloc_hook+0x64/0xec [ 76.031944][ T4860] kmem_cache_alloc+0x94/0x3e4 [ 76.033238][ T4860] new_inode_pseudo+0x10c/0x1fc [ 76.034571][ T4860] new_inode+0x38/0x174 [ 76.035747][ T4860] debugfs_create_dir+0xec/0x3f4 [ 76.037077][ T4860] nbd_start_device+0x3c8/0xb40 [ 76.038448][ T4860] nbd_ioctl+0x514/0xc50 [ 76.039587][ T4860] blkdev_ioctl+0x5f8/0xbb8 [ 76.040894][ T4860] block_ioctl+0xa4/0x118 [ 76.042060][ T4860] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.043443][ T4860] invoke_syscall+0x98/0x2b8 [ 76.044679][ T4860] el0_svc_common+0x138/0x258 [ 76.045922][ T4860] do_el0_svc+0x58/0x14c [ 76.047070][ T4860] el0_svc+0x78/0x1e0 [ 76.048127][ T4860] el0t_64_sync_handler+0xcc/0xe4 [ 76.049567][ T4860] el0t_64_sync+0x1a0/0x1a4 [ 76.055589][ T4852] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.086878][ T4862] FAULT_INJECTION: forcing a failure. [ 76.086878][ T4862] name failslab, interval 1, probability 0, space 0, times 0 [ 76.090263][ T4862] CPU: 0 PID: 4862 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 76.092950][ T4862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.095737][ T4862] Call trace: [ 76.096602][ T4862] dump_backtrace+0x0/0x43c [ 76.097816][ T4862] show_stack+0x2c/0x3c [ 76.098942][ T4862] __dump_stack+0x30/0x40 [ 76.100107][ T4862] dump_stack_lvl+0xf8/0x160 [ 76.101386][ T4862] dump_stack+0x1c/0x5c [ 76.102557][ T4862] should_fail+0x3c0/0x51c [ 76.103746][ T4862] __should_failslab+0xbc/0x10c [ 76.105133][ T4862] should_failslab+0x10/0x28 [ 76.106415][ T4862] slab_pre_alloc_hook+0x64/0xec [ 76.107751][ T4862] __kmalloc_node+0xb8/0x520 [ 76.109045][ T4862] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.110511][ T4862] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.112084][ T4862] nbd_start_device+0x14c/0xb40 [ 76.113421][ T4862] nbd_ioctl+0x514/0xc50 [ 76.114553][ T4862] blkdev_ioctl+0x5f8/0xbb8 [ 76.115755][ T4862] block_ioctl+0xa4/0x118 [ 76.116912][ T4862] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.118227][ T4862] invoke_syscall+0x98/0x2b8 [ 76.119489][ T4862] el0_svc_common+0x138/0x258 [ 76.120785][ T4862] do_el0_svc+0x58/0x14c [ 76.121921][ T4862] el0_svc+0x78/0x1e0 [ 76.123028][ T4862] el0t_64_sync_handler+0xcc/0xe4 [ 76.124389][ T4862] el0t_64_sync+0x1a0/0x1a4 [ 76.159329][ T4860] debugfs: out of free dentries, can not create directory 'nbd0' [ 76.175678][ T4860] block nbd0: Failed to create debugfs dir for 'nbd0' [ 76.273818][ T4872] block nbd4: shutting down sockets [ 76.284061][ T4870] FAULT_INJECTION: forcing a failure. [ 76.284061][ T4870] name failslab, interval 1, probability 0, space 0, times 0 [ 76.287585][ T4870] CPU: 0 PID: 4870 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 76.290327][ T4870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.293122][ T4870] Call trace: [ 76.294020][ T4870] dump_backtrace+0x0/0x43c [ 76.295280][ T4870] show_stack+0x2c/0x3c [ 76.296414][ T4870] __dump_stack+0x30/0x40 [ 76.297543][ T4870] dump_stack_lvl+0xf8/0x160 [ 76.298766][ T4870] dump_stack+0x1c/0x5c [ 76.299837][ T4870] should_fail+0x3c0/0x51c [ 76.301009][ T4870] __should_failslab+0xbc/0x10c [ 76.302362][ T4870] should_failslab+0x10/0x28 [ 76.303637][ T4870] slab_pre_alloc_hook+0x64/0xec [ 76.304964][ T4870] kmem_cache_alloc+0x94/0x3e4 [ 76.306239][ T4870] new_inode_pseudo+0x10c/0x1fc [ 76.307580][ T4870] new_inode+0x38/0x174 [ 76.308728][ T4870] debugfs_create_dir+0xec/0x3f4 [ 76.310045][ T4870] nbd_start_device+0x3c8/0xb40 [ 76.311402][ T4870] nbd_ioctl+0x514/0xc50 [ 76.312536][ T4870] blkdev_ioctl+0x5f8/0xbb8 [ 76.313763][ T4870] block_ioctl+0xa4/0x118 [ 76.314977][ T4870] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.316322][ T4870] invoke_syscall+0x98/0x2b8 [ 76.317592][ T4870] el0_svc_common+0x138/0x258 [ 76.318856][ T4870] do_el0_svc+0x58/0x14c [ 76.320020][ T4870] el0_svc+0x78/0x1e0 [ 76.321089][ T4870] el0t_64_sync_handler+0xcc/0xe4 [ 76.322550][ T4870] el0t_64_sync+0x1a0/0x1a4 [ 76.334774][ T4862] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.341181][ T4876] block nbd3: shutting down sockets [ 76.344298][ T4880] block nbd2: shutting down sockets [ 76.375648][ T4879] block nbd0: shutting down sockets [ 76.403078][ T4876] FAULT_INJECTION: forcing a failure. [ 76.403078][ T4876] name failslab, interval 1, probability 0, space 0, times 0 [ 76.411699][ T4877] FAULT_INJECTION: forcing a failure. [ 76.411699][ T4877] name failslab, interval 1, probability 0, space 0, times 0 [ 76.423368][ T4876] CPU: 1 PID: 4876 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 76.426148][ T4876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.428895][ T4876] Call trace: [ 76.429786][ T4876] dump_backtrace+0x0/0x43c [ 76.431109][ T4876] show_stack+0x2c/0x3c [ 76.432301][ T4876] __dump_stack+0x30/0x40 [ 76.433525][ T4876] dump_stack_lvl+0xf8/0x160 [ 76.434829][ T4876] dump_stack+0x1c/0x5c [ 76.435977][ T4876] should_fail+0x3c0/0x51c [ 76.437192][ T4876] __should_failslab+0xbc/0x10c [ 76.438551][ T4876] should_failslab+0x10/0x28 [ 76.439806][ T4876] slab_pre_alloc_hook+0x64/0xec [ 76.441147][ T4876] __kmalloc_node+0xb8/0x520 [ 76.442391][ T4876] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.443852][ T4876] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.445422][ T4876] nbd_start_device+0x14c/0xb40 [ 76.446755][ T4876] nbd_ioctl+0x514/0xc50 [ 76.447935][ T4876] blkdev_ioctl+0x5f8/0xbb8 [ 76.449127][ T4876] block_ioctl+0xa4/0x118 [ 76.450383][ T4876] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.451744][ T4876] invoke_syscall+0x98/0x2b8 [ 76.452985][ T4876] el0_svc_common+0x138/0x258 [ 76.454226][ T4876] do_el0_svc+0x58/0x14c [ 76.455383][ T4876] el0_svc+0x78/0x1e0 [ 76.456454][ T4876] el0t_64_sync_handler+0xcc/0xe4 [ 76.457900][ T4876] el0t_64_sync+0x1a0/0x1a4 [ 76.459748][ T4870] debugfs: out of free dentries, can not create directory 'nbd4' [ 76.463406][ T4879] FAULT_INJECTION: forcing a failure. [ 76.463406][ T4879] name failslab, interval 1, probability 0, space 0, times 0 [ 76.468622][ T4877] CPU: 0 PID: 4877 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 76.471406][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.472516][ T4870] block nbd4: Failed to create debugfs dir for 'nbd4' [ 76.474124][ T4877] Call trace: [ 76.474130][ T4877] dump_backtrace+0x0/0x43c [ 76.474144][ T4877] show_stack+0x2c/0x3c [ 76.474154][ T4877] __dump_stack+0x30/0x40 [ 76.474163][ T4877] dump_stack_lvl+0xf8/0x160 [ 76.474171][ T4877] dump_stack+0x1c/0x5c [ 76.474179][ T4877] should_fail+0x3c0/0x51c [ 76.483814][ T4877] __should_failslab+0xbc/0x10c [ 76.485154][ T4877] should_failslab+0x10/0x28 [ 76.486377][ T4877] slab_pre_alloc_hook+0x64/0xec [ 76.487709][ T4877] __kmalloc_node+0xb8/0x520 [ 76.488935][ T4877] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.490478][ T4877] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.492055][ T4877] nbd_start_device+0x14c/0xb40 [ 76.493458][ T4877] nbd_ioctl+0x514/0xc50 [ 76.494680][ T4877] blkdev_ioctl+0x5f8/0xbb8 [ 76.495925][ T4877] block_ioctl+0xa4/0x118 [ 76.497076][ T4877] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.498545][ T4877] invoke_syscall+0x98/0x2b8 [ 76.499858][ T4877] el0_svc_common+0x138/0x258 [ 76.501128][ T4877] do_el0_svc+0x58/0x14c [ 76.502303][ T4877] el0_svc+0x78/0x1e0 [ 76.503379][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 76.504801][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 76.507458][ T4879] CPU: 1 PID: 4879 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 76.510219][ T4879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.512995][ T4879] Call trace: [ 76.513869][ T4879] dump_backtrace+0x0/0x43c [ 76.515077][ T4879] show_stack+0x2c/0x3c [ 76.516185][ T4879] __dump_stack+0x30/0x40 [ 76.517371][ T4879] dump_stack_lvl+0xf8/0x160 [ 76.518603][ T4879] dump_stack+0x1c/0x5c [ 76.519728][ T4879] should_fail+0x3c0/0x51c [ 76.520902][ T4879] __should_failslab+0xbc/0x10c [ 76.522208][ T4879] should_failslab+0x10/0x28 [ 76.523493][ T4879] slab_pre_alloc_hook+0x64/0xec [ 76.524808][ T4879] kmem_cache_alloc+0x94/0x3e4 [ 76.526083][ T4879] __d_alloc+0x3c/0x65c [ 76.527183][ T4879] d_alloc_parallel+0x80/0x1104 [ 76.528471][ T4879] __lookup_slow+0x104/0x380 [ 76.529690][ T4879] lookup_one_len+0x178/0x28c [ 76.530953][ T4879] start_creating+0x19c/0x2e0 [ 76.532206][ T4879] debugfs_create_dir+0x30/0x3f4 [ 76.533562][ T4879] nbd_start_device+0x3c8/0xb40 [ 76.534910][ T4879] nbd_ioctl+0x514/0xc50 [ 76.536070][ T4879] blkdev_ioctl+0x5f8/0xbb8 [ 76.537292][ T4879] block_ioctl+0xa4/0x118 [ 76.538481][ T4879] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.539835][ T4879] invoke_syscall+0x98/0x2b8 [ 76.541089][ T4879] el0_svc_common+0x138/0x258 [ 76.542351][ T4879] do_el0_svc+0x58/0x14c [ 76.543493][ T4879] el0_svc+0x78/0x1e0 [ 76.544665][ T4879] el0t_64_sync_handler+0xcc/0xe4 [ 76.546018][ T4879] el0t_64_sync+0x1a0/0x1a4 [ 76.568309][ T4877] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.641632][ T4876] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.689883][ T4879] block nbd0: Failed to create debugfs dir for 'nbd0' [ 76.704031][ T4894] block nbd4: shutting down sockets [ 76.706467][ T4890] FAULT_INJECTION: forcing a failure. [ 76.706467][ T4890] name failslab, interval 1, probability 0, space 0, times 0 [ 76.710014][ T4890] CPU: 0 PID: 4890 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 76.712649][ T4890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.715379][ T4890] Call trace: [ 76.716257][ T4890] dump_backtrace+0x0/0x43c [ 76.717490][ T4890] show_stack+0x2c/0x3c [ 76.718632][ T4890] __dump_stack+0x30/0x40 [ 76.719857][ T4890] dump_stack_lvl+0xf8/0x160 [ 76.721072][ T4890] dump_stack+0x1c/0x5c [ 76.722212][ T4890] should_fail+0x3c0/0x51c [ 76.723460][ T4890] __should_failslab+0xbc/0x10c [ 76.724743][ T4890] should_failslab+0x10/0x28 [ 76.725980][ T4890] slab_pre_alloc_hook+0x64/0xec [ 76.727318][ T4890] kmem_cache_alloc+0x94/0x3e4 [ 76.728620][ T4890] new_inode_pseudo+0x10c/0x1fc [ 76.729929][ T4890] new_inode+0x38/0x174 [ 76.731060][ T4890] debugfs_create_dir+0xec/0x3f4 [ 76.732437][ T4890] nbd_start_device+0x3c8/0xb40 [ 76.733766][ T4890] nbd_ioctl+0x514/0xc50 [ 76.734938][ T4890] blkdev_ioctl+0x5f8/0xbb8 [ 76.736160][ T4890] block_ioctl+0xa4/0x118 [ 76.737358][ T4890] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.738703][ T4890] invoke_syscall+0x98/0x2b8 [ 76.739959][ T4890] el0_svc_common+0x138/0x258 [ 76.741243][ T4890] do_el0_svc+0x58/0x14c [ 76.742386][ T4890] el0_svc+0x78/0x1e0 [ 76.743472][ T4890] el0t_64_sync_handler+0xcc/0xe4 [ 76.744812][ T4890] el0t_64_sync+0x1a0/0x1a4 [ 76.803836][ T4898] block nbd2: shutting down sockets [ 76.824133][ T4897] block nbd1: shutting down sockets [ 76.843880][ T4900] block nbd3: shutting down sockets [ 76.849504][ T4898] FAULT_INJECTION: forcing a failure. [ 76.849504][ T4898] name failslab, interval 1, probability 0, space 0, times 0 [ 76.861199][ T4898] CPU: 1 PID: 4898 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 76.863915][ T4898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.866657][ T4898] Call trace: [ 76.867528][ T4898] dump_backtrace+0x0/0x43c [ 76.868764][ T4898] show_stack+0x2c/0x3c [ 76.869853][ T4898] __dump_stack+0x30/0x40 [ 76.871050][ T4898] dump_stack_lvl+0xf8/0x160 [ 76.871113][ T4897] FAULT_INJECTION: forcing a failure. [ 76.871113][ T4897] name failslab, interval 1, probability 0, space 0, times 0 [ 76.872290][ T4898] dump_stack+0x1c/0x5c [ 76.876918][ T4898] should_fail+0x3c0/0x51c [ 76.878126][ T4898] __should_failslab+0xbc/0x10c [ 76.879435][ T4898] should_failslab+0x10/0x28 [ 76.880702][ T4898] slab_pre_alloc_hook+0x64/0xec [ 76.882032][ T4898] __kmalloc_node+0xb8/0x520 [ 76.883353][ T4898] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.883537][ T4890] debugfs: out of free dentries, can not create directory 'nbd4' [ 76.884808][ T4898] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.884824][ T4898] nbd_start_device+0x14c/0xb40 [ 76.889681][ T4898] nbd_ioctl+0x514/0xc50 [ 76.890818][ T4898] blkdev_ioctl+0x5f8/0xbb8 [ 76.892017][ T4898] block_ioctl+0xa4/0x118 [ 76.893198][ T4898] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.893333][ T4890] block nbd4: Failed to create debugfs dir for 'nbd4' [ 76.894565][ T4898] invoke_syscall+0x98/0x2b8 [ 76.894581][ T4898] el0_svc_common+0x138/0x258 [ 76.898913][ T4898] do_el0_svc+0x58/0x14c [ 76.900055][ T4898] el0_svc+0x78/0x1e0 [ 76.901113][ T4898] el0t_64_sync_handler+0xcc/0xe4 [ 76.902493][ T4898] el0t_64_sync+0x1a0/0x1a4 [ 76.920125][ T4900] FAULT_INJECTION: forcing a failure. [ 76.920125][ T4900] name failslab, interval 1, probability 0, space 0, times 0 [ 76.924035][ T4898] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.939491][ T4897] CPU: 1 PID: 4897 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 76.942293][ T4897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.945030][ T4897] Call trace: [ 76.945869][ T4897] dump_backtrace+0x0/0x43c [ 76.947154][ T4897] show_stack+0x2c/0x3c [ 76.948290][ T4897] __dump_stack+0x30/0x40 [ 76.949430][ T4897] dump_stack_lvl+0xf8/0x160 [ 76.950624][ T4897] dump_stack+0x1c/0x5c [ 76.951754][ T4897] should_fail+0x3c0/0x51c [ 76.952977][ T4897] __should_failslab+0xbc/0x10c [ 76.954304][ T4897] should_failslab+0x10/0x28 [ 76.955559][ T4897] slab_pre_alloc_hook+0x64/0xec [ 76.956917][ T4897] __kmalloc_node+0xb8/0x520 [ 76.958091][ T4897] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.959575][ T4897] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.961026][ T4897] nbd_start_device+0x14c/0xb40 [ 76.962393][ T4897] nbd_ioctl+0x514/0xc50 [ 76.963567][ T4897] blkdev_ioctl+0x5f8/0xbb8 [ 76.964831][ T4897] block_ioctl+0xa4/0x118 [ 76.966044][ T4897] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.967417][ T4897] invoke_syscall+0x98/0x2b8 [ 76.968676][ T4897] el0_svc_common+0x138/0x258 [ 76.969966][ T4897] do_el0_svc+0x58/0x14c [ 76.971133][ T4897] el0_svc+0x78/0x1e0 [ 76.972227][ T4897] el0t_64_sync_handler+0xcc/0xe4 [ 76.973710][ T4897] el0t_64_sync+0x1a0/0x1a4 [ 76.976414][ T4900] CPU: 0 PID: 4900 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 76.979161][ T4900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 76.982024][ T4900] Call trace: [ 76.982955][ T4900] dump_backtrace+0x0/0x43c [ 76.984192][ T4900] show_stack+0x2c/0x3c [ 76.985344][ T4900] __dump_stack+0x30/0x40 [ 76.986548][ T4900] dump_stack_lvl+0xf8/0x160 [ 76.987760][ T4900] dump_stack+0x1c/0x5c [ 76.988855][ T4900] should_fail+0x3c0/0x51c [ 76.990072][ T4900] __should_failslab+0xbc/0x10c [ 76.991419][ T4900] should_failslab+0x10/0x28 [ 76.992702][ T4900] slab_pre_alloc_hook+0x64/0xec [ 76.994051][ T4900] __kmalloc_node+0xb8/0x520 [ 76.995296][ T4900] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.996706][ T4900] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.998264][ T4900] nbd_start_device+0x14c/0xb40 [ 76.999580][ T4900] nbd_ioctl+0x514/0xc50 [ 77.000738][ T4900] blkdev_ioctl+0x5f8/0xbb8 [ 77.001937][ T4900] block_ioctl+0xa4/0x118 [ 77.003124][ T4900] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.004458][ T4900] invoke_syscall+0x98/0x2b8 [ 77.005696][ T4900] el0_svc_common+0x138/0x258 [ 77.006962][ T4900] do_el0_svc+0x58/0x14c [ 77.008071][ T4900] el0_svc+0x78/0x1e0 [ 77.009191][ T4900] el0t_64_sync_handler+0xcc/0xe4 [ 77.010678][ T4900] el0t_64_sync+0x1a0/0x1a4 [ 77.014520][ T4909] block nbd0: shutting down sockets [ 77.050704][ T4900] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.053501][ T4911] FAULT_INJECTION: forcing a failure. [ 77.053501][ T4911] name failslab, interval 1, probability 0, space 0, times 0 [ 77.057142][ T4911] CPU: 1 PID: 4911 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 77.059853][ T4911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.062673][ T4911] Call trace: [ 77.063579][ T4911] dump_backtrace+0x0/0x43c [ 77.064864][ T4911] show_stack+0x2c/0x3c [ 77.065992][ T4911] __dump_stack+0x30/0x40 [ 77.067166][ T4911] dump_stack_lvl+0xf8/0x160 [ 77.068394][ T4911] dump_stack+0x1c/0x5c [ 77.069315][ T4897] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.069523][ T4911] should_fail+0x3c0/0x51c [ 77.072416][ T4911] __should_failslab+0xbc/0x10c [ 77.073835][ T4911] should_failslab+0x10/0x28 [ 77.075014][ T4911] slab_pre_alloc_hook+0x64/0xec [ 77.076406][ T4911] kmem_cache_alloc+0x94/0x3e4 [ 77.077728][ T4911] new_inode_pseudo+0x10c/0x1fc [ 77.079095][ T4911] new_inode+0x38/0x174 [ 77.080260][ T4911] debugfs_create_dir+0xec/0x3f4 [ 77.081689][ T4911] nbd_start_device+0x3c8/0xb40 [ 77.083012][ T4911] nbd_ioctl+0x514/0xc50 [ 77.084113][ T4911] blkdev_ioctl+0x5f8/0xbb8 [ 77.085430][ T4911] block_ioctl+0xa4/0x118 [ 77.086672][ T4911] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.088063][ T4911] invoke_syscall+0x98/0x2b8 [ 77.089364][ T4911] el0_svc_common+0x138/0x258 [ 77.090703][ T4911] do_el0_svc+0x58/0x14c [ 77.091866][ T4911] el0_svc+0x78/0x1e0 [ 77.092976][ T4911] el0t_64_sync_handler+0xcc/0xe4 [ 77.094420][ T4911] el0t_64_sync+0x1a0/0x1a4 [ 77.159223][ T4914] block nbd4: shutting down sockets [ 77.173947][ T4911] debugfs: out of free dentries, can not create directory 'nbd0' [ 77.179038][ T4911] block nbd0: Failed to create debugfs dir for 'nbd0' [ 77.204077][ T4914] FAULT_INJECTION: forcing a failure. [ 77.204077][ T4914] name failslab, interval 1, probability 0, space 0, times 0 [ 77.207756][ T4914] CPU: 0 PID: 4914 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 77.210565][ T4914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.213351][ T4914] Call trace: [ 77.213857][ T4918] block nbd2: shutting down sockets [ 77.214252][ T4914] dump_backtrace+0x0/0x43c [ 77.217003][ T4914] show_stack+0x2c/0x3c [ 77.218216][ T4914] __dump_stack+0x30/0x40 [ 77.219468][ T4914] dump_stack_lvl+0xf8/0x160 [ 77.220741][ T4914] dump_stack+0x1c/0x5c [ 77.221908][ T4914] should_fail+0x3c0/0x51c [ 77.223145][ T4914] __should_failslab+0xbc/0x10c [ 77.224543][ T4914] should_failslab+0x10/0x28 [ 77.225824][ T4914] slab_pre_alloc_hook+0x64/0xec [ 77.227163][ T4914] kmem_cache_alloc+0x94/0x3e4 [ 77.228470][ T4914] __d_alloc+0x3c/0x65c [ 77.229653][ T4914] d_alloc_parallel+0x80/0x1104 [ 77.231028][ T4914] __lookup_slow+0x104/0x380 [ 77.232362][ T4914] lookup_one_len+0x178/0x28c [ 77.233658][ T4914] start_creating+0x19c/0x2e0 [ 77.234910][ T4914] debugfs_create_dir+0x30/0x3f4 [ 77.236283][ T4914] nbd_start_device+0x3c8/0xb40 [ 77.237657][ T4914] nbd_ioctl+0x514/0xc50 [ 77.238793][ T4914] blkdev_ioctl+0x5f8/0xbb8 [ 77.240029][ T4914] block_ioctl+0xa4/0x118 [ 77.241185][ T4914] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.242573][ T4914] invoke_syscall+0x98/0x2b8 [ 77.243922][ T4914] el0_svc_common+0x138/0x258 [ 77.245138][ T4914] do_el0_svc+0x58/0x14c [ 77.246371][ T4914] el0_svc+0x78/0x1e0 [ 77.247516][ T4914] el0t_64_sync_handler+0xcc/0xe4 [ 77.248987][ T4914] el0t_64_sync+0x1a0/0x1a4 [ 77.288132][ T4918] FAULT_INJECTION: forcing a failure. [ 77.288132][ T4918] name failslab, interval 1, probability 0, space 0, times 0 [ 77.305333][ T4918] CPU: 0 PID: 4918 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 77.308013][ T4918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.310814][ T4918] Call trace: [ 77.311682][ T4918] dump_backtrace+0x0/0x43c [ 77.312880][ T4918] show_stack+0x2c/0x3c [ 77.314069][ T4918] __dump_stack+0x30/0x40 [ 77.315205][ T4918] dump_stack_lvl+0xf8/0x160 [ 77.316451][ T4918] dump_stack+0x1c/0x5c [ 77.317619][ T4918] should_fail+0x3c0/0x51c [ 77.318821][ T4918] __should_failslab+0xbc/0x10c [ 77.320082][ T4918] should_failslab+0x10/0x28 [ 77.321487][ T4918] slab_pre_alloc_hook+0x64/0xec [ 77.322761][ T4918] __kmalloc_node+0xb8/0x520 [ 77.324026][ T4918] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.325509][ T4918] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.327057][ T4918] nbd_start_device+0x14c/0xb40 [ 77.328372][ T4918] nbd_ioctl+0x514/0xc50 [ 77.329510][ T4918] blkdev_ioctl+0x5f8/0xbb8 [ 77.330809][ T4918] block_ioctl+0xa4/0x118 [ 77.331986][ T4918] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.333328][ T4918] invoke_syscall+0x98/0x2b8 [ 77.334601][ T4918] el0_svc_common+0x138/0x258 [ 77.335885][ T4918] do_el0_svc+0x58/0x14c [ 77.337001][ T4918] el0_svc+0x78/0x1e0 [ 77.338104][ T4918] el0t_64_sync_handler+0xcc/0xe4 [ 77.339446][ T4918] el0t_64_sync+0x1a0/0x1a4 [ 77.346088][ T4914] block nbd4: Failed to create debugfs dir for 'nbd4' [ 77.353728][ T4922] block nbd3: shutting down sockets [ 77.400644][ T4918] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.404270][ T4924] block nbd1: shutting down sockets [ 77.409019][ T4927] block nbd0: shutting down sockets [ 77.425481][ T4922] FAULT_INJECTION: forcing a failure. [ 77.425481][ T4922] name failslab, interval 1, probability 0, space 0, times 0 [ 77.442418][ T4927] FAULT_INJECTION: forcing a failure. [ 77.442418][ T4927] name failslab, interval 1, probability 0, space 0, times 0 [ 77.446186][ T4927] CPU: 1 PID: 4927 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 77.447555][ T4924] FAULT_INJECTION: forcing a failure. [ 77.447555][ T4924] name failslab, interval 1, probability 0, space 0, times 0 [ 77.449022][ T4927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.449033][ T4927] Call trace: [ 77.449036][ T4927] dump_backtrace+0x0/0x43c [ 77.449053][ T4927] show_stack+0x2c/0x3c [ 77.458452][ T4927] __dump_stack+0x30/0x40 [ 77.459584][ T4927] dump_stack_lvl+0xf8/0x160 [ 77.460784][ T4927] dump_stack+0x1c/0x5c [ 77.461869][ T4927] should_fail+0x3c0/0x51c [ 77.463090][ T4927] __should_failslab+0xbc/0x10c [ 77.464446][ T4927] should_failslab+0x10/0x28 [ 77.465643][ T4927] slab_pre_alloc_hook+0x64/0xec [ 77.466963][ T4927] kmem_cache_alloc+0x94/0x3e4 [ 77.468255][ T4927] new_inode_pseudo+0x10c/0x1fc [ 77.469637][ T4927] new_inode+0x38/0x174 [ 77.470765][ T4927] debugfs_create_dir+0xec/0x3f4 [ 77.472100][ T4927] nbd_start_device+0x3c8/0xb40 [ 77.473355][ T4927] nbd_ioctl+0x514/0xc50 [ 77.474520][ T4927] blkdev_ioctl+0x5f8/0xbb8 [ 77.475804][ T4927] block_ioctl+0xa4/0x118 [ 77.477040][ T4927] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.478403][ T4927] invoke_syscall+0x98/0x2b8 [ 77.479671][ T4927] el0_svc_common+0x138/0x258 [ 77.480948][ T4927] do_el0_svc+0x58/0x14c [ 77.482228][ T4927] el0_svc+0x78/0x1e0 [ 77.483398][ T4927] el0t_64_sync_handler+0xcc/0xe4 [ 77.484713][ T4927] el0t_64_sync+0x1a0/0x1a4 [ 77.486516][ T4922] CPU: 0 PID: 4922 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 77.489284][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.492069][ T4922] Call trace: [ 77.492978][ T4922] dump_backtrace+0x0/0x43c [ 77.494248][ T4922] show_stack+0x2c/0x3c [ 77.495360][ T4922] __dump_stack+0x30/0x40 [ 77.496537][ T4922] dump_stack_lvl+0xf8/0x160 [ 77.497801][ T4922] dump_stack+0x1c/0x5c [ 77.498958][ T4922] should_fail+0x3c0/0x51c [ 77.500222][ T4922] __should_failslab+0xbc/0x10c [ 77.501544][ T4922] should_failslab+0x10/0x28 [ 77.502836][ T4922] slab_pre_alloc_hook+0x64/0xec [ 77.504272][ T4922] __kmalloc_node+0xb8/0x520 [ 77.505579][ T4922] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.507071][ T4922] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.508648][ T4922] nbd_start_device+0x14c/0xb40 [ 77.509981][ T4922] nbd_ioctl+0x514/0xc50 [ 77.511209][ T4922] blkdev_ioctl+0x5f8/0xbb8 [ 77.512491][ T4922] block_ioctl+0xa4/0x118 [ 77.513636][ T4922] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.514914][ T4922] invoke_syscall+0x98/0x2b8 [ 77.516133][ T4922] el0_svc_common+0x138/0x258 [ 77.517411][ T4922] do_el0_svc+0x58/0x14c [ 77.518648][ T4922] el0_svc+0x78/0x1e0 [ 77.519690][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 77.521034][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 77.522833][ T4924] CPU: 0 PID: 4924 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 77.525508][ T4924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.528266][ T4924] Call trace: [ 77.529185][ T4924] dump_backtrace+0x0/0x43c [ 77.530476][ T4924] show_stack+0x2c/0x3c [ 77.531640][ T4924] __dump_stack+0x30/0x40 [ 77.532889][ T4924] dump_stack_lvl+0xf8/0x160 [ 77.534149][ T4924] dump_stack+0x1c/0x5c [ 77.535241][ T4924] should_fail+0x3c0/0x51c [ 77.536421][ T4924] __should_failslab+0xbc/0x10c [ 77.537738][ T4924] should_failslab+0x10/0x28 [ 77.538970][ T4924] slab_pre_alloc_hook+0x64/0xec [ 77.540310][ T4924] __kmalloc_node+0xb8/0x520 [ 77.541562][ T4924] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.543042][ T4924] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.544603][ T4924] nbd_start_device+0x14c/0xb40 [ 77.545901][ T4924] nbd_ioctl+0x514/0xc50 [ 77.547055][ T4924] blkdev_ioctl+0x5f8/0xbb8 [ 77.548305][ T4924] block_ioctl+0xa4/0x118 [ 77.549524][ T4924] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.550888][ T4924] invoke_syscall+0x98/0x2b8 [ 77.552111][ T4924] el0_svc_common+0x138/0x258 [ 77.553385][ T4924] do_el0_svc+0x58/0x14c [ 77.554559][ T4924] el0_svc+0x78/0x1e0 [ 77.555171][ T4927] debugfs: out of free dentries, can not create directory 'nbd0' [ 77.555628][ T4924] el0t_64_sync_handler+0xcc/0xe4 [ 77.559122][ T4924] el0t_64_sync+0x1a0/0x1a4 [ 77.565632][ T4927] block nbd0: Failed to create debugfs dir for 'nbd0' [ 77.605870][ T4922] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.639959][ T4924] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.660078][ T4937] block nbd4: shutting down sockets [ 77.674802][ T4937] FAULT_INJECTION: forcing a failure. [ 77.674802][ T4937] name failslab, interval 1, probability 0, space 0, times 0 [ 77.678118][ T4937] CPU: 1 PID: 4937 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 77.680646][ T4937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.683448][ T4937] Call trace: [ 77.684346][ T4937] dump_backtrace+0x0/0x43c [ 77.685556][ T4937] show_stack+0x2c/0x3c [ 77.686674][ T4937] __dump_stack+0x30/0x40 [ 77.687896][ T4937] dump_stack_lvl+0xf8/0x160 [ 77.689144][ T4937] dump_stack+0x1c/0x5c [ 77.690335][ T4937] should_fail+0x3c0/0x51c [ 77.691472][ T4937] __should_failslab+0xbc/0x10c [ 77.692803][ T4937] should_failslab+0x10/0x28 [ 77.694072][ T4937] slab_pre_alloc_hook+0x64/0xec [ 77.695416][ T4937] kmem_cache_alloc+0x94/0x3e4 [ 77.696718][ T4937] new_inode_pseudo+0x10c/0x1fc [ 77.698087][ T4937] new_inode+0x38/0x174 [ 77.699275][ T4937] debugfs_create_dir+0xec/0x3f4 [ 77.700684][ T4937] nbd_start_device+0x3c8/0xb40 [ 77.702011][ T4937] nbd_ioctl+0x514/0xc50 [ 77.703260][ T4937] blkdev_ioctl+0x5f8/0xbb8 [ 77.704514][ T4937] block_ioctl+0xa4/0x118 [ 77.705704][ T4937] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.707083][ T4937] invoke_syscall+0x98/0x2b8 [ 77.708382][ T4937] el0_svc_common+0x138/0x258 [ 77.709682][ T4937] do_el0_svc+0x58/0x14c [ 77.710889][ T4937] el0_svc+0x78/0x1e0 [ 77.711985][ T4937] el0t_64_sync_handler+0xcc/0xe4 [ 77.713395][ T4937] el0t_64_sync+0x1a0/0x1a4 [ 77.713885][ T4945] block nbd2: shutting down sockets [ 77.721968][ T4937] debugfs: out of free dentries, can not create directory 'nbd4' [ 77.743067][ T4937] block nbd4: Failed to create debugfs dir for 'nbd4' [ 77.747421][ T4939] FAULT_INJECTION: forcing a failure. [ 77.747421][ T4939] name failslab, interval 1, probability 0, space 0, times 0 [ 77.776788][ T4939] CPU: 0 PID: 4939 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 77.779657][ T4939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.782433][ T4939] Call trace: [ 77.783332][ T4939] dump_backtrace+0x0/0x43c [ 77.784598][ T4939] show_stack+0x2c/0x3c [ 77.785787][ T4939] __dump_stack+0x30/0x40 [ 77.786959][ T4939] dump_stack_lvl+0xf8/0x160 [ 77.788220][ T4939] dump_stack+0x1c/0x5c [ 77.789380][ T4939] should_fail+0x3c0/0x51c [ 77.790510][ T4939] __should_failslab+0xbc/0x10c [ 77.791842][ T4939] should_failslab+0x10/0x28 [ 77.793139][ T4939] slab_pre_alloc_hook+0x64/0xec [ 77.794540][ T4939] __kmalloc_node+0xb8/0x520 [ 77.795776][ T4939] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.797296][ T4939] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.798904][ T4939] nbd_start_device+0x14c/0xb40 [ 77.800207][ T4939] nbd_ioctl+0x514/0xc50 [ 77.801392][ T4939] blkdev_ioctl+0x5f8/0xbb8 [ 77.802610][ T4939] block_ioctl+0xa4/0x118 [ 77.803814][ T4939] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.805217][ T4939] invoke_syscall+0x98/0x2b8 [ 77.806522][ T4939] el0_svc_common+0x138/0x258 [ 77.807865][ T4939] do_el0_svc+0x58/0x14c [ 77.809113][ T4939] el0_svc+0x78/0x1e0 [ 77.810245][ T4939] el0t_64_sync_handler+0xcc/0xe4 [ 77.811646][ T4939] el0t_64_sync+0x1a0/0x1a4 [ 77.827711][ T4939] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.833652][ T4956] block nbd3: shutting down sockets [ 77.839386][ T4955] block nbd0: shutting down sockets [ 77.846393][ T4946] FAULT_INJECTION: forcing a failure. [ 77.846393][ T4946] name failslab, interval 1, probability 0, space 0, times 0 [ 77.853810][ T4950] block nbd1: shutting down sockets [ 77.857579][ T4946] CPU: 1 PID: 4946 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 77.860338][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.863171][ T4946] Call trace: [ 77.864072][ T4946] dump_backtrace+0x0/0x43c [ 77.865262][ T4946] show_stack+0x2c/0x3c [ 77.866457][ T4946] __dump_stack+0x30/0x40 [ 77.867629][ T4946] dump_stack_lvl+0xf8/0x160 [ 77.867738][ T4947] FAULT_INJECTION: forcing a failure. [ 77.867738][ T4947] name failslab, interval 1, probability 0, space 0, times 0 [ 77.868815][ T4946] dump_stack+0x1c/0x5c [ 77.873512][ T4946] should_fail+0x3c0/0x51c [ 77.874745][ T4946] __should_failslab+0xbc/0x10c [ 77.876131][ T4946] should_failslab+0x10/0x28 [ 77.877351][ T4946] slab_pre_alloc_hook+0x64/0xec [ 77.878725][ T4946] kmem_cache_alloc+0x94/0x3e4 [ 77.880031][ T4946] new_inode_pseudo+0x10c/0x1fc [ 77.881318][ T4946] new_inode+0x38/0x174 [ 77.882512][ T4946] debugfs_create_dir+0xec/0x3f4 [ 77.883884][ T4946] nbd_start_device+0x3c8/0xb40 [ 77.885260][ T4946] nbd_ioctl+0x514/0xc50 [ 77.886420][ T4946] blkdev_ioctl+0x5f8/0xbb8 [ 77.887664][ T4946] block_ioctl+0xa4/0x118 [ 77.888912][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.890284][ T4946] invoke_syscall+0x98/0x2b8 [ 77.891555][ T4946] el0_svc_common+0x138/0x258 [ 77.892832][ T4946] do_el0_svc+0x58/0x14c [ 77.893935][ T4946] el0_svc+0x78/0x1e0 [ 77.894995][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 77.896434][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 77.897667][ T4947] CPU: 0 PID: 4947 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 77.900352][ T4947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.903139][ T4947] Call trace: [ 77.904041][ T4947] dump_backtrace+0x0/0x43c [ 77.905252][ T4947] show_stack+0x2c/0x3c [ 77.906422][ T4947] __dump_stack+0x30/0x40 [ 77.907700][ T4947] dump_stack_lvl+0xf8/0x160 [ 77.908080][ T4946] debugfs: out of free dentries, can not create directory 'nbd0' [ 77.908923][ T4947] dump_stack+0x1c/0x5c [ 77.908936][ T4947] should_fail+0x3c0/0x51c [ 77.908946][ T4947] __should_failslab+0xbc/0x10c [ 77.911455][ T4946] block nbd0: Failed to create debugfs dir for 'nbd0' [ 77.912178][ T4947] should_failslab+0x10/0x28 [ 77.917841][ T4947] slab_pre_alloc_hook+0x64/0xec [ 77.919159][ T4947] __kmalloc_node+0xb8/0x520 [ 77.920426][ T4947] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.921871][ T4947] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.923540][ T4947] nbd_start_device+0x14c/0xb40 [ 77.924899][ T4947] nbd_ioctl+0x514/0xc50 [ 77.926034][ T4947] blkdev_ioctl+0x5f8/0xbb8 [ 77.927320][ T4947] block_ioctl+0xa4/0x118 [ 77.928559][ T4947] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.929928][ T4947] invoke_syscall+0x98/0x2b8 [ 77.931132][ T4947] el0_svc_common+0x138/0x258 [ 77.932381][ T4947] do_el0_svc+0x58/0x14c [ 77.933552][ T4947] el0_svc+0x78/0x1e0 [ 77.934628][ T4947] el0t_64_sync_handler+0xcc/0xe4 [ 77.935991][ T4947] el0t_64_sync+0x1a0/0x1a4 [ 77.964855][ T4958] block nbd4: shutting down sockets [ 77.969464][ T4950] FAULT_INJECTION: forcing a failure. [ 77.969464][ T4950] name failslab, interval 1, probability 0, space 0, times 0 [ 77.976188][ T4959] FAULT_INJECTION: forcing a failure. [ 77.976188][ T4959] name failslab, interval 1, probability 0, space 0, times 0 [ 77.981508][ T4959] CPU: 1 PID: 4959 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 77.984214][ T4959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 77.986930][ T4959] Call trace: [ 77.987762][ T4959] dump_backtrace+0x0/0x43c [ 77.988972][ T4959] show_stack+0x2c/0x3c [ 77.990100][ T4959] __dump_stack+0x30/0x40 [ 77.991240][ T4959] dump_stack_lvl+0xf8/0x160 [ 77.992421][ T4959] dump_stack+0x1c/0x5c [ 77.993524][ T4959] should_fail+0x3c0/0x51c [ 77.994669][ T4959] __should_failslab+0xbc/0x10c [ 77.995988][ T4959] should_failslab+0x10/0x28 [ 77.997256][ T4959] slab_pre_alloc_hook+0x64/0xec [ 77.998615][ T4959] kmem_cache_alloc+0x94/0x3e4 [ 77.999896][ T4959] new_inode_pseudo+0x10c/0x1fc [ 78.001238][ T4959] new_inode+0x38/0x174 [ 78.002325][ T4959] debugfs_create_dir+0xec/0x3f4 [ 78.003657][ T4959] nbd_start_device+0x3c8/0xb40 [ 78.004956][ T4959] nbd_ioctl+0x514/0xc50 [ 78.006114][ T4959] blkdev_ioctl+0x5f8/0xbb8 [ 78.007351][ T4959] block_ioctl+0xa4/0x118 [ 78.008475][ T4959] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.009857][ T4959] invoke_syscall+0x98/0x2b8 [ 78.011073][ T4959] el0_svc_common+0x138/0x258 [ 78.012370][ T4959] do_el0_svc+0x58/0x14c [ 78.013510][ T4959] el0_svc+0x78/0x1e0 [ 78.014591][ T4959] el0t_64_sync_handler+0xcc/0xe4 [ 78.015937][ T4959] el0t_64_sync+0x1a0/0x1a4 [ 78.017185][ T4950] CPU: 0 PID: 4950 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 78.019967][ T4950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.022680][ T4950] Call trace: [ 78.023579][ T4950] dump_backtrace+0x0/0x43c [ 78.024803][ T4950] show_stack+0x2c/0x3c [ 78.025921][ T4950] __dump_stack+0x30/0x40 [ 78.027092][ T4950] dump_stack_lvl+0xf8/0x160 [ 78.028388][ T4950] dump_stack+0x1c/0x5c [ 78.029480][ T4950] should_fail+0x3c0/0x51c [ 78.030675][ T4950] __should_failslab+0xbc/0x10c [ 78.031986][ T4950] should_failslab+0x10/0x28 [ 78.033239][ T4950] slab_pre_alloc_hook+0x64/0xec [ 78.034618][ T4950] __kmalloc_node+0xb8/0x520 [ 78.035837][ T4950] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.037280][ T4950] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.038820][ T4950] nbd_start_device+0x14c/0xb40 [ 78.040134][ T4950] nbd_ioctl+0x514/0xc50 [ 78.041342][ T4950] blkdev_ioctl+0x5f8/0xbb8 [ 78.042574][ T4950] block_ioctl+0xa4/0x118 [ 78.043747][ T4950] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.045045][ T4950] invoke_syscall+0x98/0x2b8 [ 78.046347][ T4950] el0_svc_common+0x138/0x258 [ 78.047657][ T4950] do_el0_svc+0x58/0x14c [ 78.048799][ T4950] el0_svc+0x78/0x1e0 [ 78.049881][ T4950] el0t_64_sync_handler+0xcc/0xe4 [ 78.051257][ T4950] el0t_64_sync+0x1a0/0x1a4 [ 78.065732][ T4947] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.070601][ T4950] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.076819][ T4959] debugfs: out of free dentries, can not create directory 'nbd4' [ 78.080042][ T4959] block nbd4: Failed to create debugfs dir for 'nbd4' [ 78.144216][ T4964] block nbd0: shutting down sockets [ 78.155516][ T4964] FAULT_INJECTION: forcing a failure. [ 78.155516][ T4964] name failslab, interval 1, probability 0, space 0, times 0 [ 78.163611][ T4973] block nbd2: shutting down sockets [ 78.168754][ T4964] CPU: 0 PID: 4964 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 78.171453][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.174197][ T4964] Call trace: [ 78.175064][ T4964] dump_backtrace+0x0/0x43c [ 78.176343][ T4964] show_stack+0x2c/0x3c [ 78.177453][ T4964] __dump_stack+0x30/0x40 [ 78.178628][ T4964] dump_stack_lvl+0xf8/0x160 [ 78.179864][ T4964] dump_stack+0x1c/0x5c [ 78.180987][ T4964] should_fail+0x3c0/0x51c [ 78.182222][ T4964] __should_failslab+0xbc/0x10c [ 78.183557][ T4964] should_failslab+0x10/0x28 [ 78.184810][ T4964] slab_pre_alloc_hook+0x64/0xec [ 78.186133][ T4964] kmem_cache_alloc+0x94/0x3e4 [ 78.187407][ T4964] new_inode_pseudo+0x10c/0x1fc [ 78.188709][ T4964] new_inode+0x38/0x174 [ 78.189849][ T4964] debugfs_create_dir+0xec/0x3f4 [ 78.191165][ T4964] nbd_start_device+0x3c8/0xb40 [ 78.192528][ T4964] nbd_ioctl+0x514/0xc50 [ 78.193685][ T4964] blkdev_ioctl+0x5f8/0xbb8 [ 78.194899][ T4964] block_ioctl+0xa4/0x118 [ 78.196076][ T4964] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.197434][ T4964] invoke_syscall+0x98/0x2b8 [ 78.198675][ T4964] el0_svc_common+0x138/0x258 [ 78.199947][ T4964] do_el0_svc+0x58/0x14c [ 78.201113][ T4964] el0_svc+0x78/0x1e0 [ 78.202195][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 78.203637][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 78.221058][ T4975] block nbd3: shutting down sockets [ 78.249360][ T4964] debugfs: out of free dentries, can not create directory 'nbd0' [ 78.251616][ T4964] block nbd0: Failed to create debugfs dir for 'nbd0' [ 78.267191][ T4965] FAULT_INJECTION: forcing a failure. [ 78.267191][ T4965] name failslab, interval 1, probability 0, space 0, times 0 [ 78.274836][ T4965] CPU: 1 PID: 4965 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 78.277498][ T4965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.280220][ T4965] Call trace: [ 78.281059][ T4965] dump_backtrace+0x0/0x43c [ 78.282259][ T4965] show_stack+0x2c/0x3c [ 78.283377][ T4965] __dump_stack+0x30/0x40 [ 78.283918][ T4969] FAULT_INJECTION: forcing a failure. [ 78.283918][ T4969] name failslab, interval 1, probability 0, space 0, times 0 [ 78.284531][ T4965] dump_stack_lvl+0xf8/0x160 [ 78.284545][ T4965] dump_stack+0x1c/0x5c [ 78.284554][ T4965] should_fail+0x3c0/0x51c [ 78.284564][ T4965] __should_failslab+0xbc/0x10c [ 78.292928][ T4965] should_failslab+0x10/0x28 [ 78.294199][ T4965] slab_pre_alloc_hook+0x64/0xec [ 78.295519][ T4965] __kmalloc_node+0xb8/0x520 [ 78.296742][ T4965] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.298174][ T4965] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.299717][ T4965] nbd_start_device+0x14c/0xb40 [ 78.301023][ T4965] nbd_ioctl+0x514/0xc50 [ 78.302158][ T4965] blkdev_ioctl+0x5f8/0xbb8 [ 78.303402][ T4965] block_ioctl+0xa4/0x118 [ 78.304522][ T4965] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.305921][ T4965] invoke_syscall+0x98/0x2b8 [ 78.307157][ T4965] el0_svc_common+0x138/0x258 [ 78.308391][ T4965] do_el0_svc+0x58/0x14c [ 78.309545][ T4965] el0_svc+0x78/0x1e0 [ 78.310628][ T4965] el0t_64_sync_handler+0xcc/0xe4 [ 78.311983][ T4965] el0t_64_sync+0x1a0/0x1a4 [ 78.328625][ T4969] CPU: 0 PID: 4969 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 78.331350][ T4969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.334096][ T4969] Call trace: [ 78.334994][ T4969] dump_backtrace+0x0/0x43c [ 78.336199][ T4969] show_stack+0x2c/0x3c [ 78.337343][ T4969] __dump_stack+0x30/0x40 [ 78.338488][ T4969] dump_stack_lvl+0xf8/0x160 [ 78.339774][ T4969] dump_stack+0x1c/0x5c [ 78.340911][ T4969] should_fail+0x3c0/0x51c [ 78.342122][ T4969] __should_failslab+0xbc/0x10c [ 78.343461][ T4969] should_failslab+0x10/0x28 [ 78.344751][ T4969] slab_pre_alloc_hook+0x64/0xec [ 78.346116][ T4969] __kmalloc_node+0xb8/0x520 [ 78.347361][ T4969] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.347881][ T4965] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.348813][ T4969] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.348829][ T4969] nbd_start_device+0x14c/0xb40 [ 78.348840][ T4969] nbd_ioctl+0x514/0xc50 [ 78.348849][ T4969] blkdev_ioctl+0x5f8/0xbb8 [ 78.348858][ T4969] block_ioctl+0xa4/0x118 [ 78.356912][ T4969] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.358246][ T4969] invoke_syscall+0x98/0x2b8 [ 78.359482][ T4969] el0_svc_common+0x138/0x258 [ 78.360766][ T4969] do_el0_svc+0x58/0x14c [ 78.361984][ T4969] el0_svc+0x78/0x1e0 [ 78.363068][ T4969] el0t_64_sync_handler+0xcc/0xe4 [ 78.364434][ T4969] el0t_64_sync+0x1a0/0x1a4 [ 78.371486][ T4976] block nbd1: shutting down sockets [ 78.427676][ T4972] FAULT_INJECTION: forcing a failure. [ 78.427676][ T4972] name failslab, interval 1, probability 0, space 0, times 0 [ 78.431134][ T4972] CPU: 0 PID: 4972 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 78.433889][ T4972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.436689][ T4972] Call trace: [ 78.437572][ T4972] dump_backtrace+0x0/0x43c [ 78.438769][ T4972] show_stack+0x2c/0x3c [ 78.439854][ T4972] __dump_stack+0x30/0x40 [ 78.441026][ T4972] dump_stack_lvl+0xf8/0x160 [ 78.442254][ T4972] dump_stack+0x1c/0x5c [ 78.443360][ T4972] should_fail+0x3c0/0x51c [ 78.444560][ T4972] __should_failslab+0xbc/0x10c [ 78.445842][ T4972] should_failslab+0x10/0x28 [ 78.447082][ T4972] slab_pre_alloc_hook+0x64/0xec [ 78.448434][ T4972] __kmalloc_node+0xb8/0x520 [ 78.449693][ T4972] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.451144][ T4972] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.452685][ T4972] nbd_start_device+0x14c/0xb40 [ 78.453961][ T4972] nbd_ioctl+0x514/0xc50 [ 78.455122][ T4972] blkdev_ioctl+0x5f8/0xbb8 [ 78.456307][ T4972] block_ioctl+0xa4/0x118 [ 78.457459][ T4972] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.458815][ T4972] invoke_syscall+0x98/0x2b8 [ 78.460035][ T4972] el0_svc_common+0x138/0x258 [ 78.461289][ T4972] do_el0_svc+0x58/0x14c [ 78.462424][ T4972] el0_svc+0x78/0x1e0 [ 78.463497][ T4972] el0t_64_sync_handler+0xcc/0xe4 [ 78.464945][ T4972] el0t_64_sync+0x1a0/0x1a4 [ 78.478210][ T4969] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.481765][ T4988] block nbd0: shutting down sockets [ 78.484621][ T4983] FAULT_INJECTION: forcing a failure. [ 78.484621][ T4983] name failslab, interval 1, probability 0, space 0, times 0 [ 78.488827][ T4993] block nbd4: shutting down sockets [ 78.497057][ T4972] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.502682][ T4983] CPU: 1 PID: 4983 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 78.505490][ T4983] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.508280][ T4983] Call trace: [ 78.509176][ T4983] dump_backtrace+0x0/0x43c [ 78.510408][ T4983] show_stack+0x2c/0x3c [ 78.511551][ T4983] __dump_stack+0x30/0x40 [ 78.512691][ T4983] dump_stack_lvl+0xf8/0x160 [ 78.513902][ T4983] dump_stack+0x1c/0x5c [ 78.515047][ T4983] should_fail+0x3c0/0x51c [ 78.516262][ T4983] __should_failslab+0xbc/0x10c [ 78.517557][ T4983] should_failslab+0x10/0x28 [ 78.518732][ T4983] slab_pre_alloc_hook+0x64/0xec [ 78.520082][ T4983] kmem_cache_alloc+0x94/0x3e4 [ 78.521357][ T4983] new_inode_pseudo+0x10c/0x1fc [ 78.522685][ T4983] new_inode+0x38/0x174 [ 78.523845][ T4983] debugfs_create_dir+0xec/0x3f4 [ 78.525157][ T4983] nbd_start_device+0x3c8/0xb40 [ 78.526465][ T4983] nbd_ioctl+0x514/0xc50 [ 78.527612][ T4983] blkdev_ioctl+0x5f8/0xbb8 [ 78.528853][ T4983] block_ioctl+0xa4/0x118 [ 78.530040][ T4983] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.531376][ T4983] invoke_syscall+0x98/0x2b8 [ 78.532607][ T4983] el0_svc_common+0x138/0x258 [ 78.533848][ T4983] do_el0_svc+0x58/0x14c [ 78.534966][ T4983] el0_svc+0x78/0x1e0 [ 78.536066][ T4983] el0t_64_sync_handler+0xcc/0xe4 [ 78.537423][ T4983] el0t_64_sync+0x1a0/0x1a4 [ 78.547947][ T4983] debugfs: out of free dentries, can not create directory 'nbd0' [ 78.550404][ T4983] block nbd0: Failed to create debugfs dir for 'nbd0' [ 78.550445][ T4986] FAULT_INJECTION: forcing a failure. [ 78.550445][ T4986] name failslab, interval 1, probability 0, space 0, times 0 [ 78.561145][ T4986] CPU: 0 PID: 4986 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 78.563958][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.566688][ T4986] Call trace: [ 78.567574][ T4986] dump_backtrace+0x0/0x43c [ 78.568751][ T4986] show_stack+0x2c/0x3c [ 78.569895][ T4986] __dump_stack+0x30/0x40 [ 78.571123][ T4986] dump_stack_lvl+0xf8/0x160 [ 78.572343][ T4986] dump_stack+0x1c/0x5c [ 78.573492][ T4986] should_fail+0x3c0/0x51c [ 78.574672][ T4986] __should_failslab+0xbc/0x10c [ 78.576003][ T4986] should_failslab+0x10/0x28 [ 78.577203][ T4986] slab_pre_alloc_hook+0x64/0xec [ 78.578626][ T4986] kmem_cache_alloc+0x94/0x3e4 [ 78.579888][ T4986] new_inode_pseudo+0x10c/0x1fc [ 78.581228][ T4986] new_inode+0x38/0x174 [ 78.582342][ T4986] debugfs_create_dir+0xec/0x3f4 [ 78.583695][ T4986] nbd_start_device+0x3c8/0xb40 [ 78.585006][ T4986] nbd_ioctl+0x514/0xc50 [ 78.586172][ T4986] blkdev_ioctl+0x5f8/0xbb8 [ 78.587382][ T4986] block_ioctl+0xa4/0x118 [ 78.588548][ T4986] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.589896][ T4986] invoke_syscall+0x98/0x2b8 [ 78.591197][ T4986] el0_svc_common+0x138/0x258 [ 78.592454][ T4986] do_el0_svc+0x58/0x14c [ 78.593632][ T4986] el0_svc+0x78/0x1e0 [ 78.594699][ T4986] el0t_64_sync_handler+0xcc/0xe4 [ 78.596059][ T4986] el0t_64_sync+0x1a0/0x1a4 [ 78.604944][ T4996] block nbd2: Device being setup by another task [ 78.606832][ T4990] block nbd2: shutting down sockets [ 78.629445][ T4986] debugfs: out of free dentries, can not create directory 'nbd4' [ 78.640714][ T4990] FAULT_INJECTION: forcing a failure. [ 78.640714][ T4990] name failslab, interval 1, probability 0, space 0, times 0 [ 78.644895][ T4990] CPU: 1 PID: 4990 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 78.647595][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.650348][ T4990] Call trace: [ 78.651192][ T4990] dump_backtrace+0x0/0x43c [ 78.652440][ T4990] show_stack+0x2c/0x3c [ 78.653593][ T4990] __dump_stack+0x30/0x40 [ 78.654241][ T4986] block nbd4: Failed to create debugfs dir for 'nbd4' [ 78.654782][ T4990] dump_stack_lvl+0xf8/0x160 [ 78.657857][ T4990] dump_stack+0x1c/0x5c [ 78.659061][ T4990] should_fail+0x3c0/0x51c [ 78.660275][ T4990] __should_failslab+0xbc/0x10c [ 78.661632][ T4990] should_failslab+0x10/0x28 [ 78.662874][ T4990] slab_pre_alloc_hook+0x64/0xec [ 78.664223][ T4990] kmem_cache_alloc+0x94/0x3e4 [ 78.665557][ T4990] new_inode_pseudo+0x10c/0x1fc [ 78.666939][ T4990] new_inode+0x38/0x174 [ 78.668087][ T4990] debugfs_create_dir+0xec/0x3f4 [ 78.669413][ T4990] nbd_start_device+0x3c8/0xb40 [ 78.670715][ T4990] nbd_ioctl+0x514/0xc50 [ 78.671855][ T4990] blkdev_ioctl+0x5f8/0xbb8 [ 78.673043][ T4990] block_ioctl+0xa4/0x118 [ 78.674192][ T4990] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.675640][ T4990] invoke_syscall+0x98/0x2b8 [ 78.676859][ T4990] el0_svc_common+0x138/0x258 [ 78.678166][ T4990] do_el0_svc+0x58/0x14c [ 78.679391][ T4990] el0_svc+0x78/0x1e0 [ 78.680447][ T4990] el0t_64_sync_handler+0xcc/0xe4 [ 78.681810][ T4990] el0t_64_sync+0x1a0/0x1a4 [ 78.743915][ T5003] block nbd3: shutting down sockets [ 78.748174][ T4990] debugfs: out of free dentries, can not create directory 'nbd2' [ 78.750982][ T4990] block nbd2: Failed to create debugfs dir for 'nbd2' [ 78.773827][ T5001] block nbd0: shutting down sockets [ 78.776246][ T5001] FAULT_INJECTION: forcing a failure. [ 78.776246][ T5001] name failslab, interval 1, probability 0, space 0, times 0 [ 78.779825][ T5001] CPU: 0 PID: 5001 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 78.782501][ T5001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.785173][ T5001] Call trace: [ 78.786040][ T5001] dump_backtrace+0x0/0x43c [ 78.787259][ T5001] show_stack+0x2c/0x3c [ 78.788428][ T5001] __dump_stack+0x30/0x40 [ 78.789591][ T5001] dump_stack_lvl+0xf8/0x160 [ 78.790827][ T5001] dump_stack+0x1c/0x5c [ 78.791962][ T5001] should_fail+0x3c0/0x51c [ 78.793160][ T5001] __should_failslab+0xbc/0x10c [ 78.794477][ T5001] should_failslab+0x10/0x28 [ 78.795685][ T5001] slab_pre_alloc_hook+0x64/0xec [ 78.797031][ T5001] kmem_cache_alloc+0x94/0x3e4 [ 78.798257][ T5001] __d_alloc+0x3c/0x65c [ 78.799415][ T5001] d_alloc_parallel+0x80/0x1104 [ 78.800706][ T5001] __lookup_slow+0x104/0x380 [ 78.801958][ T5001] lookup_one_len+0x178/0x28c [ 78.803165][ T5001] start_creating+0x19c/0x2e0 [ 78.804412][ T5001] debugfs_create_dir+0x30/0x3f4 [ 78.805715][ T5001] nbd_start_device+0x3c8/0xb40 [ 78.807036][ T5001] nbd_ioctl+0x514/0xc50 [ 78.808159][ T5001] blkdev_ioctl+0x5f8/0xbb8 [ 78.809415][ T5001] block_ioctl+0xa4/0x118 [ 78.810562][ T5001] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.811976][ T5001] invoke_syscall+0x98/0x2b8 [ 78.813212][ T5001] el0_svc_common+0x138/0x258 [ 78.814489][ T5001] do_el0_svc+0x58/0x14c [ 78.815655][ T5001] el0_svc+0x78/0x1e0 [ 78.816688][ T5001] el0t_64_sync_handler+0xcc/0xe4 [ 78.818122][ T5001] el0t_64_sync+0x1a0/0x1a4 [ 78.877171][ T5003] FAULT_INJECTION: forcing a failure. [ 78.877171][ T5003] name failslab, interval 1, probability 0, space 0, times 0 [ 78.887533][ T5001] block nbd0: Failed to create debugfs dir for 'nbd0' [ 78.890121][ T5003] CPU: 1 PID: 5003 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 78.892915][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.895612][ T5003] Call trace: [ 78.896521][ T5003] dump_backtrace+0x0/0x43c [ 78.897747][ T5003] show_stack+0x2c/0x3c [ 78.898888][ T5003] __dump_stack+0x30/0x40 [ 78.900046][ T5003] dump_stack_lvl+0xf8/0x160 [ 78.901341][ T5003] dump_stack+0x1c/0x5c [ 78.902474][ T5003] should_fail+0x3c0/0x51c [ 78.903679][ T5003] __should_failslab+0xbc/0x10c [ 78.905033][ T5003] should_failslab+0x10/0x28 [ 78.906274][ T5003] slab_pre_alloc_hook+0x64/0xec [ 78.907605][ T5003] __kmalloc_node+0xb8/0x520 [ 78.908802][ T5003] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.910260][ T5003] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.911838][ T5003] nbd_start_device+0x14c/0xb40 [ 78.913125][ T5003] nbd_ioctl+0x514/0xc50 [ 78.914275][ T5003] blkdev_ioctl+0x5f8/0xbb8 [ 78.915491][ T5003] block_ioctl+0xa4/0x118 [ 78.916692][ T5003] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.918053][ T5003] invoke_syscall+0x98/0x2b8 [ 78.919284][ T5003] el0_svc_common+0x138/0x258 [ 78.920556][ T5003] do_el0_svc+0x58/0x14c [ 78.921723][ T5003] el0_svc+0x78/0x1e0 [ 78.922795][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 78.924146][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 78.936819][ T5016] block nbd4: shutting down sockets [ 78.936963][ T5015] block nbd1: shutting down sockets [ 78.939285][ T5009] FAULT_INJECTION: forcing a failure. [ 78.939285][ T5009] name failslab, interval 1, probability 0, space 0, times 0 [ 78.945038][ T5009] CPU: 1 PID: 5009 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 78.947718][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 78.950333][ T5009] Call trace: [ 78.951195][ T5009] dump_backtrace+0x0/0x43c [ 78.952346][ T5009] show_stack+0x2c/0x3c [ 78.953484][ T5009] __dump_stack+0x30/0x40 [ 78.954661][ T5009] dump_stack_lvl+0xf8/0x160 [ 78.955944][ T5009] dump_stack+0x1c/0x5c [ 78.957051][ T5009] should_fail+0x3c0/0x51c [ 78.958229][ T5009] __should_failslab+0xbc/0x10c [ 78.959606][ T5009] should_failslab+0x10/0x28 [ 78.960846][ T5009] slab_pre_alloc_hook+0x64/0xec [ 78.962204][ T5009] kmem_cache_alloc+0x94/0x3e4 [ 78.963461][ T5009] new_inode_pseudo+0x10c/0x1fc [ 78.964783][ T5009] new_inode+0x38/0x174 [ 78.965926][ T5009] debugfs_create_dir+0xec/0x3f4 [ 78.967285][ T5009] nbd_start_device+0x3c8/0xb40 [ 78.968586][ T5009] nbd_ioctl+0x514/0xc50 [ 78.969141][ T5003] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.969840][ T5009] blkdev_ioctl+0x5f8/0xbb8 [ 78.969855][ T5009] block_ioctl+0xa4/0x118 [ 78.969866][ T5009] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.969878][ T5009] invoke_syscall+0x98/0x2b8 [ 78.976593][ T5009] el0_svc_common+0x138/0x258 [ 78.977837][ T5009] do_el0_svc+0x58/0x14c [ 78.978958][ T5009] el0_svc+0x78/0x1e0 [ 78.980078][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 78.981425][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 78.984813][ T5009] debugfs: out of free dentries, can not create directory 'nbd4' [ 78.989261][ T5009] block nbd4: Failed to create debugfs dir for 'nbd4' [ 78.999137][ T5007] FAULT_INJECTION: forcing a failure. [ 78.999137][ T5007] name failslab, interval 1, probability 0, space 0, times 0 [ 79.017013][ T5007] CPU: 1 PID: 5007 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 79.019770][ T5007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.022418][ T5007] Call trace: [ 79.023322][ T5007] dump_backtrace+0x0/0x43c [ 79.024536][ T5007] show_stack+0x2c/0x3c [ 79.025648][ T5007] __dump_stack+0x30/0x40 [ 79.026810][ T5007] dump_stack_lvl+0xf8/0x160 [ 79.028031][ T5007] dump_stack+0x1c/0x5c [ 79.029164][ T5007] should_fail+0x3c0/0x51c [ 79.030383][ T5007] __should_failslab+0xbc/0x10c [ 79.031709][ T5007] should_failslab+0x10/0x28 [ 79.032915][ T5007] slab_pre_alloc_hook+0x64/0xec [ 79.034237][ T5007] __kmalloc_node+0xb8/0x520 [ 79.035468][ T5007] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.036902][ T5007] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.038503][ T5007] nbd_start_device+0x14c/0xb40 [ 79.039811][ T5007] nbd_ioctl+0x514/0xc50 [ 79.040928][ T5007] blkdev_ioctl+0x5f8/0xbb8 [ 79.042176][ T5007] block_ioctl+0xa4/0x118 [ 79.043358][ T5007] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.044719][ T5007] invoke_syscall+0x98/0x2b8 [ 79.045967][ T5007] el0_svc_common+0x138/0x258 [ 79.047208][ T5007] do_el0_svc+0x58/0x14c [ 79.048410][ T5007] el0_svc+0x78/0x1e0 [ 79.049541][ T5007] el0t_64_sync_handler+0xcc/0xe4 [ 79.050883][ T5007] el0t_64_sync+0x1a0/0x1a4 [ 79.056031][ T5024] block nbd2: Device being setup by another task [ 79.057109][ T5027] block nbd0: shutting down sockets [ 79.057808][ T5018] block nbd2: shutting down sockets [ 79.059314][ T5007] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.066915][ T5022] FAULT_INJECTION: forcing a failure. [ 79.066915][ T5022] name failslab, interval 1, probability 0, space 0, times 0 [ 79.079418][ T5022] CPU: 0 PID: 5022 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 79.082198][ T5022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.084925][ T5022] Call trace: [ 79.085802][ T5022] dump_backtrace+0x0/0x43c [ 79.087031][ T5022] show_stack+0x2c/0x3c [ 79.088136][ T5022] __dump_stack+0x30/0x40 [ 79.089316][ T5022] dump_stack_lvl+0xf8/0x160 [ 79.090511][ T5022] dump_stack+0x1c/0x5c [ 79.091647][ T5022] should_fail+0x3c0/0x51c [ 79.092837][ T5022] __should_failslab+0xbc/0x10c [ 79.094172][ T5022] should_failslab+0x10/0x28 [ 79.095419][ T5022] slab_pre_alloc_hook+0x64/0xec [ 79.096713][ T5022] kmem_cache_alloc+0x94/0x3e4 [ 79.098041][ T5022] new_inode_pseudo+0x10c/0x1fc [ 79.099335][ T5022] new_inode+0x38/0x174 [ 79.100470][ T5022] debugfs_create_dir+0xec/0x3f4 [ 79.101808][ T5022] nbd_start_device+0x3c8/0xb40 [ 79.103076][ T5022] nbd_ioctl+0x514/0xc50 [ 79.104327][ T5022] blkdev_ioctl+0x5f8/0xbb8 [ 79.105519][ T5022] block_ioctl+0xa4/0x118 [ 79.106698][ T5022] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.108037][ T5022] invoke_syscall+0x98/0x2b8 [ 79.109361][ T5022] el0_svc_common+0x138/0x258 [ 79.110657][ T5022] do_el0_svc+0x58/0x14c [ 79.111814][ T5022] el0_svc+0x78/0x1e0 [ 79.112899][ T5022] el0t_64_sync_handler+0xcc/0xe4 [ 79.114325][ T5022] el0t_64_sync+0x1a0/0x1a4 [ 79.122810][ T5022] debugfs: out of free dentries, can not create directory 'nbd0' [ 79.126731][ T5022] block nbd0: Failed to create debugfs dir for 'nbd0' [ 79.128940][ T5018] FAULT_INJECTION: forcing a failure. [ 79.128940][ T5018] name failslab, interval 1, probability 0, space 0, times 0 [ 79.161013][ T5018] CPU: 1 PID: 5018 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 79.163832][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.166609][ T5018] Call trace: [ 79.167469][ T5018] dump_backtrace+0x0/0x43c [ 79.168676][ T5018] show_stack+0x2c/0x3c [ 79.169789][ T5018] __dump_stack+0x30/0x40 [ 79.170990][ T5018] dump_stack_lvl+0xf8/0x160 [ 79.172258][ T5018] dump_stack+0x1c/0x5c [ 79.173382][ T5018] should_fail+0x3c0/0x51c [ 79.174577][ T5018] __should_failslab+0xbc/0x10c [ 79.175879][ T5018] should_failslab+0x10/0x28 [ 79.177130][ T5018] slab_pre_alloc_hook+0x64/0xec [ 79.178458][ T5018] kmem_cache_alloc+0x94/0x3e4 [ 79.179709][ T5018] new_inode_pseudo+0x10c/0x1fc [ 79.181083][ T5018] new_inode+0x38/0x174 [ 79.182184][ T5018] debugfs_create_dir+0xec/0x3f4 [ 79.183523][ T5018] nbd_start_device+0x3c8/0xb40 [ 79.184835][ T5018] nbd_ioctl+0x514/0xc50 [ 79.185968][ T5018] blkdev_ioctl+0x5f8/0xbb8 [ 79.187192][ T5018] block_ioctl+0xa4/0x118 [ 79.188341][ T5018] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.189700][ T5018] invoke_syscall+0x98/0x2b8 [ 79.191021][ T5018] el0_svc_common+0x138/0x258 [ 79.192294][ T5018] do_el0_svc+0x58/0x14c [ 79.193445][ T5018] el0_svc+0x78/0x1e0 [ 79.194502][ T5018] el0t_64_sync_handler+0xcc/0xe4 [ 79.195848][ T5018] el0t_64_sync+0x1a0/0x1a4 [ 79.237489][ T5018] debugfs: out of free dentries, can not create directory 'nbd2' [ 79.239939][ T5018] block nbd2: Failed to create debugfs dir for 'nbd2' [ 79.243752][ T5037] block nbd4: Device being setup by another task [ 79.244155][ T5035] block nbd3: shutting down sockets [ 79.247087][ T5029] block nbd4: shutting down sockets [ 79.331399][ T5029] FAULT_INJECTION: forcing a failure. [ 79.331399][ T5029] name failslab, interval 1, probability 0, space 0, times 0 [ 79.335837][ T5039] block nbd0: shutting down sockets [ 79.339793][ T5035] FAULT_INJECTION: forcing a failure. [ 79.339793][ T5035] name failslab, interval 1, probability 0, space 0, times 0 [ 79.341675][ T5039] FAULT_INJECTION: forcing a failure. [ 79.341675][ T5039] name failslab, interval 1, probability 0, space 0, times 0 [ 79.347529][ T5039] CPU: 1 PID: 5039 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 79.350192][ T5039] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.352889][ T5039] Call trace: [ 79.353778][ T5039] dump_backtrace+0x0/0x43c [ 79.355068][ T5039] show_stack+0x2c/0x3c [ 79.356200][ T5039] __dump_stack+0x30/0x40 [ 79.357367][ T5039] dump_stack_lvl+0xf8/0x160 [ 79.358619][ T5039] dump_stack+0x1c/0x5c [ 79.359734][ T5039] should_fail+0x3c0/0x51c [ 79.360926][ T5039] __should_failslab+0xbc/0x10c [ 79.362295][ T5039] should_failslab+0x10/0x28 [ 79.363611][ T5039] slab_pre_alloc_hook+0x64/0xec [ 79.364935][ T5039] kmem_cache_alloc+0x94/0x3e4 [ 79.366154][ T5039] new_inode_pseudo+0x10c/0x1fc [ 79.367525][ T5039] new_inode+0x38/0x174 [ 79.368664][ T5039] debugfs_create_dir+0xec/0x3f4 [ 79.369959][ T5039] nbd_start_device+0x3c8/0xb40 [ 79.371330][ T5039] nbd_ioctl+0x514/0xc50 [ 79.372502][ T5039] blkdev_ioctl+0x5f8/0xbb8 [ 79.373748][ T5039] block_ioctl+0xa4/0x118 [ 79.374918][ T5039] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.376277][ T5039] invoke_syscall+0x98/0x2b8 [ 79.377519][ T5039] el0_svc_common+0x138/0x258 [ 79.378756][ T5039] do_el0_svc+0x58/0x14c [ 79.379957][ T5039] el0_svc+0x78/0x1e0 [ 79.381035][ T5039] el0t_64_sync_handler+0xcc/0xe4 [ 79.382448][ T5039] el0t_64_sync+0x1a0/0x1a4 [ 79.390641][ T5035] CPU: 0 PID: 5035 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 79.393434][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.396189][ T5035] Call trace: [ 79.397115][ T5035] dump_backtrace+0x0/0x43c [ 79.398354][ T5035] show_stack+0x2c/0x3c [ 79.399503][ T5035] __dump_stack+0x30/0x40 [ 79.400679][ T5035] dump_stack_lvl+0xf8/0x160 [ 79.401909][ T5035] dump_stack+0x1c/0x5c [ 79.403034][ T5035] should_fail+0x3c0/0x51c [ 79.404265][ T5035] __should_failslab+0xbc/0x10c [ 79.405618][ T5035] should_failslab+0x10/0x28 [ 79.406844][ T5035] slab_pre_alloc_hook+0x64/0xec [ 79.408161][ T5035] __kmalloc_node+0xb8/0x520 [ 79.409434][ T5035] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.410929][ T5035] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.412537][ T5035] nbd_start_device+0x14c/0xb40 [ 79.413947][ T5035] nbd_ioctl+0x514/0xc50 [ 79.415090][ T5035] blkdev_ioctl+0x5f8/0xbb8 [ 79.416314][ T5035] block_ioctl+0xa4/0x118 [ 79.417423][ T5035] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.418822][ T5035] invoke_syscall+0x98/0x2b8 [ 79.420092][ T5035] el0_svc_common+0x138/0x258 [ 79.421392][ T5035] do_el0_svc+0x58/0x14c [ 79.422524][ T5035] el0_svc+0x78/0x1e0 [ 79.423617][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 79.424993][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 79.428092][ T5029] CPU: 1 PID: 5029 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 79.430840][ T5029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.433608][ T5029] Call trace: [ 79.434507][ T5029] dump_backtrace+0x0/0x43c [ 79.435374][ T5047] block nbd1: shutting down sockets [ 79.435715][ T5029] show_stack+0x2c/0x3c [ 79.438292][ T5029] __dump_stack+0x30/0x40 [ 79.439489][ T5029] dump_stack_lvl+0xf8/0x160 [ 79.440749][ T5029] dump_stack+0x1c/0x5c [ 79.441868][ T5029] should_fail+0x3c0/0x51c [ 79.443073][ T5029] __should_failslab+0xbc/0x10c [ 79.444395][ T5029] should_failslab+0x10/0x28 [ 79.445648][ T5029] slab_pre_alloc_hook+0x64/0xec [ 79.445905][ T5035] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.447039][ T5029] __kmalloc_track_caller+0x74/0x370 [ 79.447056][ T5029] kstrdup+0xe4/0x15c [ 79.447065][ T5029] kstrdup_const+0x54/0x6c [ 79.447073][ T5029] __kernfs_new_node+0xa8/0x5d8 [ 79.451962][ T5039] debugfs: out of free dentries, can not create directory 'nbd0' [ 79.452596][ T5029] kernfs_new_node+0x11c/0x240 [ 79.452613][ T5029] kernfs_create_dir_ns+0x58/0x12c [ 79.452622][ T5029] sysfs_create_dir_ns+0x114/0x24c [ 79.452631][ T5029] kobject_add_internal+0x590/0xc54 [ 79.457952][ T5039] block nbd0: Failed to create debugfs dir for 'nbd0' [ 79.458677][ T5029] kobject_add+0x134/0x1f8 [ 79.464450][ T5029] blk_mq_register_hctx+0xc0/0x35c [ 79.465855][ T5029] blk_mq_sysfs_register+0xb8/0x18c [ 79.467245][ T5029] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 79.468805][ T5029] nbd_start_device+0x14c/0xb40 [ 79.470171][ T5029] nbd_ioctl+0x514/0xc50 [ 79.471329][ T5029] blkdev_ioctl+0x5f8/0xbb8 [ 79.472583][ T5029] block_ioctl+0xa4/0x118 [ 79.473789][ T5029] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.475171][ T5029] invoke_syscall+0x98/0x2b8 [ 79.476452][ T5029] el0_svc_common+0x138/0x258 [ 79.477744][ T5029] do_el0_svc+0x58/0x14c [ 79.478905][ T5029] el0_svc+0x78/0x1e0 [ 79.479994][ T5029] el0t_64_sync_handler+0xcc/0xe4 [ 79.481420][ T5029] el0t_64_sync+0x1a0/0x1a4 [ 79.485262][ T5029] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 79.493827][ T5050] block nbd2: shutting down sockets [ 79.530513][ T5043] FAULT_INJECTION: forcing a failure. [ 79.530513][ T5043] name failslab, interval 1, probability 0, space 0, times 0 [ 79.544105][ T5043] CPU: 0 PID: 5043 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 79.546831][ T5043] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.549618][ T5043] Call trace: [ 79.550502][ T5043] dump_backtrace+0x0/0x43c [ 79.551720][ T5043] show_stack+0x2c/0x3c [ 79.552871][ T5043] __dump_stack+0x30/0x40 [ 79.554027][ T5043] dump_stack_lvl+0xf8/0x160 [ 79.555271][ T5043] dump_stack+0x1c/0x5c [ 79.556438][ T5043] should_fail+0x3c0/0x51c [ 79.557671][ T5043] __should_failslab+0xbc/0x10c [ 79.559057][ T5043] should_failslab+0x10/0x28 [ 79.560331][ T5043] slab_pre_alloc_hook+0x64/0xec [ 79.561707][ T5043] __kmalloc_node+0xb8/0x520 [ 79.563009][ T5043] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.564532][ T5043] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.566112][ T5043] nbd_start_device+0x14c/0xb40 [ 79.567471][ T5043] nbd_ioctl+0x514/0xc50 [ 79.568648][ T5043] blkdev_ioctl+0x5f8/0xbb8 [ 79.569932][ T5043] block_ioctl+0xa4/0x118 [ 79.571100][ T5043] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.572484][ T5043] invoke_syscall+0x98/0x2b8 [ 79.573786][ T5043] el0_svc_common+0x138/0x258 [ 79.575095][ T5043] do_el0_svc+0x58/0x14c [ 79.576324][ T5043] el0_svc+0x78/0x1e0 [ 79.577416][ T5043] el0t_64_sync_handler+0xcc/0xe4 [ 79.578748][ T5043] el0t_64_sync+0x1a0/0x1a4 [ 79.616066][ T5051] FAULT_INJECTION: forcing a failure. [ 79.616066][ T5051] name failslab, interval 1, probability 0, space 0, times 0 [ 79.622027][ T5043] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.629240][ T5051] CPU: 1 PID: 5051 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 79.631978][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.634716][ T5051] Call trace: [ 79.635566][ T5051] dump_backtrace+0x0/0x43c [ 79.636820][ T5051] show_stack+0x2c/0x3c [ 79.637991][ T5051] __dump_stack+0x30/0x40 [ 79.639192][ T5051] dump_stack_lvl+0xf8/0x160 [ 79.640438][ T5051] dump_stack+0x1c/0x5c [ 79.641555][ T5051] should_fail+0x3c0/0x51c [ 79.642779][ T5051] __should_failslab+0xbc/0x10c [ 79.644158][ T5051] should_failslab+0x10/0x28 [ 79.645419][ T5051] slab_pre_alloc_hook+0x64/0xec [ 79.646803][ T5051] __kmalloc_node+0xb8/0x520 [ 79.648063][ T5051] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 79.649681][ T5051] nbd_start_device+0x14c/0xb40 [ 79.650961][ T5051] nbd_ioctl+0x514/0xc50 [ 79.652110][ T5051] blkdev_ioctl+0x5f8/0xbb8 [ 79.653333][ T5051] block_ioctl+0xa4/0x118 [ 79.654518][ T5051] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.655863][ T5051] invoke_syscall+0x98/0x2b8 [ 79.657196][ T5051] el0_svc_common+0x138/0x258 [ 79.658431][ T5051] do_el0_svc+0x58/0x14c [ 79.659586][ T5051] el0_svc+0x78/0x1e0 [ 79.660642][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 79.661967][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 79.677359][ T5055] block nbd3: shutting down sockets [ 79.694649][ T5065] block nbd0: shutting down sockets [ 79.697249][ T5057] FAULT_INJECTION: forcing a failure. [ 79.697249][ T5057] name failslab, interval 1, probability 0, space 0, times 0 [ 79.704098][ T5057] CPU: 0 PID: 5057 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 79.706866][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.709667][ T5057] Call trace: [ 79.710541][ T5057] dump_backtrace+0x0/0x43c [ 79.711796][ T5057] show_stack+0x2c/0x3c [ 79.712942][ T5057] __dump_stack+0x30/0x40 [ 79.714110][ T5057] dump_stack_lvl+0xf8/0x160 [ 79.715336][ T5057] dump_stack+0x1c/0x5c [ 79.716479][ T5057] should_fail+0x3c0/0x51c [ 79.717678][ T5057] __should_failslab+0xbc/0x10c [ 79.718987][ T5057] should_failslab+0x10/0x28 [ 79.720265][ T5057] slab_pre_alloc_hook+0x64/0xec [ 79.721604][ T5057] kmem_cache_alloc+0x94/0x3e4 [ 79.722928][ T5057] new_inode_pseudo+0x10c/0x1fc [ 79.724278][ T5057] new_inode+0x38/0x174 [ 79.725426][ T5057] debugfs_create_dir+0xec/0x3f4 [ 79.726782][ T5057] nbd_start_device+0x3c8/0xb40 [ 79.728096][ T5057] nbd_ioctl+0x514/0xc50 [ 79.729302][ T5057] blkdev_ioctl+0x5f8/0xbb8 [ 79.730545][ T5057] block_ioctl+0xa4/0x118 [ 79.731723][ T5057] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.733088][ T5057] invoke_syscall+0x98/0x2b8 [ 79.734364][ T5057] el0_svc_common+0x138/0x258 [ 79.735629][ T5057] do_el0_svc+0x58/0x14c [ 79.736822][ T5057] el0_svc+0x78/0x1e0 [ 79.737933][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 79.739365][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 79.744280][ T5064] block nbd4: shutting down sockets [ 79.751196][ T5055] FAULT_INJECTION: forcing a failure. [ 79.751196][ T5055] name failslab, interval 1, probability 0, space 0, times 0 [ 79.758381][ T5055] CPU: 1 PID: 5055 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 79.761206][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.763920][ T5055] Call trace: [ 79.764797][ T5055] dump_backtrace+0x0/0x43c [ 79.765987][ T5055] show_stack+0x2c/0x3c [ 79.767135][ T5055] __dump_stack+0x30/0x40 [ 79.768268][ T5055] dump_stack_lvl+0xf8/0x160 [ 79.769572][ T5055] dump_stack+0x1c/0x5c [ 79.770694][ T5055] should_fail+0x3c0/0x51c [ 79.771936][ T5055] __should_failslab+0xbc/0x10c [ 79.773323][ T5055] should_failslab+0x10/0x28 [ 79.774673][ T5055] slab_pre_alloc_hook+0x64/0xec [ 79.775962][ T5055] __kmalloc_node+0xb8/0x520 [ 79.777173][ T5055] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.778637][ T5055] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.780173][ T5055] nbd_start_device+0x14c/0xb40 [ 79.781497][ T5055] nbd_ioctl+0x514/0xc50 [ 79.782640][ T5055] blkdev_ioctl+0x5f8/0xbb8 [ 79.783815][ T5055] block_ioctl+0xa4/0x118 [ 79.784985][ T5055] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.786339][ T5055] invoke_syscall+0x98/0x2b8 [ 79.787614][ T5055] el0_svc_common+0x138/0x258 [ 79.788873][ T5055] do_el0_svc+0x58/0x14c [ 79.790069][ T5055] el0_svc+0x78/0x1e0 [ 79.791151][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 79.792529][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 79.792597][ T5057] debugfs: out of free dentries, can not create directory 'nbd0' [ 79.796483][ T5057] block nbd0: Failed to create debugfs dir for 'nbd0' [ 79.824022][ T5055] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.827398][ T5062] ------------[ cut here ]------------ [ 79.831934][ T5062] kernfs: can not remove 'nr_tags', no directory [ 79.849802][ T5062] WARNING: CPU: 1 PID: 5062 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 79.852521][ T5062] Modules linked in: [ 79.853574][ T5062] CPU: 1 PID: 5062 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 79.856258][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.859029][ T5062] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 79.861130][ T5062] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 79.862712][ T5062] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 79.864257][ T5062] sp : ffff80001f997790 [ 79.865360][ T5062] x29: ffff80001f997790 x28: ffff0000cc8c8000 x27: 0000000000000000 [ 79.867566][ T5062] x26: 0000000000000002 x25: ffff8000148eaba8 x24: 1ffff000022f275c [ 79.869757][ T5062] x23: dfff800000000000 x22: ffff8000148eabe0 x21: 0000000000000000 [ 79.871936][ T5062] x20: 0000000000000000 x19: ffff800011793b40 x18: 0000000000000002 [ 79.874035][ T5062] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 79.876154][ T5062] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 79.878296][ T5062] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b9148c38a27c900 [ 79.880444][ T5062] x8 : 7b9148c38a27c900 x7 : 0000000000000000 x6 : 0000000000000000 [ 79.882599][ T5062] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a731de4 [ 79.884714][ T5062] x2 : ffff0001b42dad10 x1 : 0000000100000000 x0 : 000000000000002e [ 79.886884][ T5062] Call trace: [ 79.887776][ T5062] kernfs_remove_by_name_ns+0xcc/0x158 [ 79.889257][ T5062] sysfs_remove_group+0xf8/0x288 [ 79.890613][ T5062] sysfs_remove_groups+0x5c/0xb4 [ 79.891957][ T5062] __kobject_del+0x90/0x2d4 [ 79.893208][ T5062] kobject_del+0x48/0x68 [ 79.894381][ T5062] blk_mq_sysfs_unregister+0x198/0x268 [ 79.895835][ T5062] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 79.897359][ T5062] nbd_start_device+0x14c/0xb40 [ 79.898686][ T5062] nbd_ioctl+0x514/0xc50 [ 79.899822][ T5062] blkdev_ioctl+0x5f8/0xbb8 [ 79.901033][ T5062] block_ioctl+0xa4/0x118 [ 79.902242][ T5062] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.903674][ T5062] invoke_syscall+0x98/0x2b8 [ 79.904906][ T5062] el0_svc_common+0x138/0x258 [ 79.906185][ T5062] do_el0_svc+0x58/0x14c [ 79.907328][ T5062] el0_svc+0x78/0x1e0 [ 79.908461][ T5062] el0t_64_sync_handler+0xcc/0xe4 [ 79.909847][ T5062] el0t_64_sync+0x1a0/0x1a4 [ 79.911098][ T5062] irq event stamp: 1974 [ 79.912185][ T5062] hardirqs last enabled at (1973): [] finish_lock_switch+0xb0/0x1c4 [ 79.914762][ T5062] hardirqs last disabled at (1974): [] el1_dbg+0x24/0x80 [ 79.917010][ T5062] softirqs last enabled at (1968): [] handle_softirqs+0xa4c/0xbf0 [ 79.919605][ T5062] softirqs last disabled at (1935): [] __irq_exit_rcu+0x240/0x440 [ 79.922165][ T5062] ---[ end trace 7c5743ebc6d8c254 ]--- [ 79.926915][ T5068] block nbd1: shutting down sockets [ 79.941584][ T5062] ------------[ cut here ]------------ [ 79.945862][ T5062] kernfs: can not remove 'nr_reserved_tags', no directory [ 79.948060][ T5062] WARNING: CPU: 1 PID: 5062 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 79.950704][ T5062] Modules linked in: [ 79.951747][ T5062] CPU: 1 PID: 5062 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 79.954429][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 79.957085][ T5062] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 79.959196][ T5062] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 79.960815][ T5062] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 79.962385][ T5062] sp : ffff80001f997790 [ 79.963510][ T5062] x29: ffff80001f997790 x28: ffff0000cc8c8000 x27: 0000000000000000 [ 79.965715][ T5062] x26: 0000000000000002 x25: ffff8000148eabb0 x24: 1ffff000022f275c [ 79.967886][ T5062] x23: dfff800000000000 x22: ffff8000148eac40 x21: 0000000000000000 [ 79.970051][ T5062] x20: 0000000000000000 x19: ffff800011793b80 x18: 0000000000000002 [ 79.972254][ T5062] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 79.974436][ T5062] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 79.976601][ T5062] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b9148c38a27c900 [ 79.978731][ T5062] x8 : 7b9148c38a27c900 x7 : 0000000000000000 x6 : 0000000000000000 [ 79.980877][ T5062] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008503848 [ 79.983169][ T5062] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000037 [ 79.985405][ T5062] Call trace: [ 79.986305][ T5062] kernfs_remove_by_name_ns+0xcc/0x158 [ 79.987799][ T5062] sysfs_remove_group+0xf8/0x288 [ 79.989171][ T5062] sysfs_remove_groups+0x5c/0xb4 [ 79.990557][ T5062] __kobject_del+0x90/0x2d4 [ 79.991782][ T5062] kobject_del+0x48/0x68 [ 79.992888][ T5062] blk_mq_sysfs_unregister+0x198/0x268 [ 79.994408][ T5062] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 79.995962][ T5062] nbd_start_device+0x14c/0xb40 [ 79.997277][ T5062] nbd_ioctl+0x514/0xc50 [ 79.998442][ T5062] blkdev_ioctl+0x5f8/0xbb8 [ 79.999670][ T5062] block_ioctl+0xa4/0x118 [ 80.000840][ T5062] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.002161][ T5062] invoke_syscall+0x98/0x2b8 [ 80.003427][ T5062] el0_svc_common+0x138/0x258 [ 80.004645][ T5062] do_el0_svc+0x58/0x14c [ 80.005824][ T5062] el0_svc+0x78/0x1e0 [ 80.006900][ T5062] el0t_64_sync_handler+0xcc/0xe4 [ 80.008230][ T5062] el0t_64_sync+0x1a0/0x1a4 [ 80.009446][ T5062] irq event stamp: 2658 [ 80.010518][ T5062] hardirqs last enabled at (2657): [] finish_lock_switch+0xb0/0x1c4 [ 80.013103][ T5062] hardirqs last disabled at (2658): [] el1_dbg+0x24/0x80 [ 80.015481][ T5062] softirqs last enabled at (2622): [] handle_softirqs+0xa4c/0xbf0 [ 80.018074][ T5062] softirqs last disabled at (1977): [] __irq_exit_rcu+0x240/0x440 [ 80.020674][ T5062] ---[ end trace 7c5743ebc6d8c255 ]--- [ 80.029645][ T5062] ------------[ cut here ]------------ [ 80.031462][ T5062] kernfs: can not remove 'cpu_list', no directory [ 80.038698][ T5068] FAULT_INJECTION: forcing a failure. [ 80.038698][ T5068] name failslab, interval 1, probability 0, space 0, times 0 [ 80.042844][ T5068] CPU: 1 PID: 5068 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 80.045596][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.048362][ T5068] Call trace: [ 80.049204][ T5068] dump_backtrace+0x0/0x43c [ 80.050400][ T5068] show_stack+0x2c/0x3c [ 80.051565][ T5068] __dump_stack+0x30/0x40 [ 80.052745][ T5068] dump_stack_lvl+0xf8/0x160 [ 80.053966][ T5068] dump_stack+0x1c/0x5c [ 80.055132][ T5068] should_fail+0x3c0/0x51c [ 80.056356][ T5068] __should_failslab+0xbc/0x10c [ 80.057661][ T5068] should_failslab+0x10/0x28 [ 80.058890][ T5068] slab_pre_alloc_hook+0x64/0xec [ 80.060262][ T5068] __kmalloc_node+0xb8/0x520 [ 80.061525][ T5068] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.062969][ T5068] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.064504][ T5068] nbd_start_device+0x14c/0xb40 [ 80.065793][ T5068] nbd_ioctl+0x514/0xc50 [ 80.066955][ T5068] blkdev_ioctl+0x5f8/0xbb8 [ 80.068228][ T5068] block_ioctl+0xa4/0x118 [ 80.069416][ T5068] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.070712][ T5068] invoke_syscall+0x98/0x2b8 [ 80.071974][ T5068] el0_svc_common+0x138/0x258 [ 80.073244][ T5068] do_el0_svc+0x58/0x14c [ 80.074361][ T5068] el0_svc+0x78/0x1e0 [ 80.075432][ T5068] el0t_64_sync_handler+0xcc/0xe4 [ 80.076831][ T5068] el0t_64_sync+0x1a0/0x1a4 [ 80.082422][ T5062] WARNING: CPU: 1 PID: 5062 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 80.085053][ T5062] Modules linked in: [ 80.086129][ T5062] CPU: 1 PID: 5062 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 80.088738][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.091517][ T5062] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 80.093644][ T5062] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 80.095222][ T5062] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 80.096785][ T5062] sp : ffff80001f997790 [ 80.097917][ T5062] x29: ffff80001f997790 x28: ffff0000cc8c8000 x27: 0000000000000000 [ 80.100069][ T5062] x26: 0000000000000002 x25: ffff8000148eabb8 x24: 1ffff000022f275c [ 80.102270][ T5062] x23: dfff800000000000 x22: ffff8000148eaca0 x21: 0000000000000000 [ 80.104511][ T5062] x20: 0000000000000000 x19: ffff800011793bc0 x18: 0000000000000002 [ 80.106687][ T5062] x17: 0000000040000000 x16: ffff8000111a3970 x15: 0000000000000002 [ 80.108785][ T5062] x14: 0000000000ff0100 x13: 1ffff0000282a06b x12: 0000000000ff0100 [ 80.111050][ T5062] x11: 0000000000000000 x10: 0000000000000000 x9 : 7b9148c38a27c900 [ 80.113229][ T5062] x8 : 7b9148c38a27c900 x7 : 0000000000000000 x6 : 0000000000000000 [ 80.115453][ T5062] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a731de4 [ 80.117648][ T5062] x2 : ffff0001b42dad10 x1 : 0000000100000000 x0 : 000000000000002f [ 80.120003][ T5062] Call trace: [ 80.120880][ T5062] kernfs_remove_by_name_ns+0xcc/0x158 [ 80.122372][ T5062] sysfs_remove_group+0xf8/0x288 [ 80.123736][ T5062] sysfs_remove_groups+0x5c/0xb4 [ 80.125116][ T5062] __kobject_del+0x90/0x2d4 [ 80.126353][ T5062] kobject_del+0x48/0x68 [ 80.127542][ T5062] blk_mq_sysfs_unregister+0x198/0x268 [ 80.129087][ T5062] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 80.130761][ T5062] nbd_start_device+0x14c/0xb40 [ 80.132183][ T5062] nbd_ioctl+0x514/0xc50 [ 80.133307][ T5062] blkdev_ioctl+0x5f8/0xbb8 [ 80.134510][ T5062] block_ioctl+0xa4/0x118 [ 80.135799][ T5062] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.137259][ T5062] invoke_syscall+0x98/0x2b8 [ 80.138549][ T5062] el0_svc_common+0x138/0x258 [ 80.139825][ T5062] do_el0_svc+0x58/0x14c [ 80.140988][ T5062] el0_svc+0x78/0x1e0 [ 80.142018][ T5062] el0t_64_sync_handler+0xcc/0xe4 [ 80.143380][ T5062] el0t_64_sync+0x1a0/0x1a4 [ 80.144632][ T5062] irq event stamp: 3030 [ 80.145775][ T5062] hardirqs last enabled at (3029): [] finish_lock_switch+0xb0/0x1c4 [ 80.148444][ T5062] hardirqs last disabled at (3030): [] el1_dbg+0x24/0x80 [ 80.150857][ T5062] softirqs last enabled at (3024): [] handle_softirqs+0xa4c/0xbf0 [ 80.153459][ T5062] softirqs last disabled at (2831): [] __irq_exit_rcu+0x240/0x440 [ 80.156177][ T5062] ---[ end trace 7c5743ebc6d8c256 ]--- [ 80.158559][ T5082] block nbd2: shutting down sockets [ 80.160143][ T5081] block nbd0: shutting down sockets [ 80.166860][ T5074] FAULT_INJECTION: forcing a failure. [ 80.166860][ T5074] name failslab, interval 1, probability 0, space 0, times 0 [ 80.169354][ T5068] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.170649][ T5074] CPU: 1 PID: 5074 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 80.174990][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.177857][ T5074] Call trace: [ 80.178733][ T5074] dump_backtrace+0x0/0x43c [ 80.179998][ T5074] show_stack+0x2c/0x3c [ 80.181215][ T5074] __dump_stack+0x30/0x40 [ 80.182419][ T5074] dump_stack_lvl+0xf8/0x160 [ 80.183702][ T5074] dump_stack+0x1c/0x5c [ 80.184807][ T5074] should_fail+0x3c0/0x51c [ 80.186001][ T5074] __should_failslab+0xbc/0x10c [ 80.187374][ T5074] should_failslab+0x10/0x28 [ 80.188628][ T5074] slab_pre_alloc_hook+0x64/0xec [ 80.189970][ T5074] kmem_cache_alloc+0x94/0x3e4 [ 80.191265][ T5074] __d_alloc+0x3c/0x65c [ 80.192420][ T5074] d_alloc_parallel+0x80/0x1104 [ 80.193737][ T5074] __lookup_slow+0x104/0x380 [ 80.195023][ T5074] lookup_one_len+0x178/0x28c [ 80.196330][ T5074] start_creating+0x19c/0x2e0 [ 80.197583][ T5074] debugfs_create_dir+0x30/0x3f4 [ 80.198967][ T5074] nbd_start_device+0x3c8/0xb40 [ 80.200287][ T5074] nbd_ioctl+0x514/0xc50 [ 80.201505][ T5074] blkdev_ioctl+0x5f8/0xbb8 [ 80.202732][ T5074] block_ioctl+0xa4/0x118 [ 80.203933][ T5074] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.205386][ T5074] invoke_syscall+0x98/0x2b8 [ 80.206616][ T5074] el0_svc_common+0x138/0x258 [ 80.207868][ T5074] do_el0_svc+0x58/0x14c [ 80.209023][ T5074] el0_svc+0x78/0x1e0 [ 80.210131][ T5074] el0t_64_sync_handler+0xcc/0xe4 [ 80.211511][ T5074] el0t_64_sync+0x1a0/0x1a4 [ 80.220493][ T5074] block nbd0: Failed to create debugfs dir for 'nbd0' [ 80.222889][ T5062] FAULT_INJECTION: forcing a failure. [ 80.222889][ T5062] name failslab, interval 1, probability 0, space 0, times 0 [ 80.230988][ T5083] block nbd3: shutting down sockets [ 80.231108][ T5062] CPU: 1 PID: 5062 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 80.235157][ T5062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.237923][ T5062] Call trace: [ 80.238840][ T5062] dump_backtrace+0x0/0x43c [ 80.240051][ T5062] show_stack+0x2c/0x3c [ 80.241195][ T5062] __dump_stack+0x30/0x40 [ 80.242418][ T5062] dump_stack_lvl+0xf8/0x160 [ 80.243720][ T5062] dump_stack+0x1c/0x5c [ 80.244880][ T5062] should_fail+0x3c0/0x51c [ 80.246125][ T5062] __should_failslab+0xbc/0x10c [ 80.247465][ T5062] should_failslab+0x10/0x28 [ 80.248688][ T5062] slab_pre_alloc_hook+0x64/0xec [ 80.249999][ T5062] __kmalloc_node+0xb8/0x520 [ 80.251228][ T5062] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.252691][ T5062] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.254330][ T5062] nbd_start_device+0x14c/0xb40 [ 80.255702][ T5062] nbd_ioctl+0x514/0xc50 [ 80.256900][ T5062] blkdev_ioctl+0x5f8/0xbb8 [ 80.258140][ T5062] block_ioctl+0xa4/0x118 [ 80.259302][ T5062] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.260654][ T5062] invoke_syscall+0x98/0x2b8 [ 80.261900][ T5062] el0_svc_common+0x138/0x258 [ 80.263166][ T5062] do_el0_svc+0x58/0x14c [ 80.264307][ T5062] el0_svc+0x78/0x1e0 [ 80.265428][ T5062] el0t_64_sync_handler+0xcc/0xe4 [ 80.266794][ T5062] el0t_64_sync+0x1a0/0x1a4 [ 80.288488][ T5075] FAULT_INJECTION: forcing a failure. [ 80.288488][ T5075] name failslab, interval 1, probability 0, space 0, times 0 [ 80.296808][ T5075] CPU: 1 PID: 5075 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 80.299551][ T5075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.302348][ T5075] Call trace: [ 80.303291][ T5075] dump_backtrace+0x0/0x43c [ 80.304561][ T5075] show_stack+0x2c/0x3c [ 80.305666][ T5075] __dump_stack+0x30/0x40 [ 80.306880][ T5075] dump_stack_lvl+0xf8/0x160 [ 80.308158][ T5075] dump_stack+0x1c/0x5c [ 80.309264][ T5075] should_fail+0x3c0/0x51c [ 80.310516][ T5075] __should_failslab+0xbc/0x10c [ 80.311808][ T5075] should_failslab+0x10/0x28 [ 80.313022][ T5075] slab_pre_alloc_hook+0x64/0xec [ 80.314400][ T5075] __kmalloc_node+0xb8/0x520 [ 80.315684][ T5075] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.317138][ T5075] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.318733][ T5075] nbd_start_device+0x14c/0xb40 [ 80.320043][ T5075] nbd_ioctl+0x514/0xc50 [ 80.321177][ T5075] blkdev_ioctl+0x5f8/0xbb8 [ 80.322454][ T5075] block_ioctl+0xa4/0x118 [ 80.323621][ T5075] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.325056][ T5075] invoke_syscall+0x98/0x2b8 [ 80.326393][ T5075] el0_svc_common+0x138/0x258 [ 80.327638][ T5075] do_el0_svc+0x58/0x14c [ 80.328753][ T5075] el0_svc+0x78/0x1e0 [ 80.329903][ T5075] el0t_64_sync_handler+0xcc/0xe4 [ 80.331321][ T5075] el0t_64_sync+0x1a0/0x1a4 [ 80.348466][ T5089] FAULT_INJECTION: forcing a failure. [ 80.348466][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 80.355727][ T5089] CPU: 1 PID: 5089 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 80.358503][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.361227][ T5089] Call trace: [ 80.362118][ T5089] dump_backtrace+0x0/0x43c [ 80.363334][ T5089] show_stack+0x2c/0x3c [ 80.364448][ T5089] __dump_stack+0x30/0x40 [ 80.365624][ T5089] dump_stack_lvl+0xf8/0x160 [ 80.366912][ T5089] dump_stack+0x1c/0x5c [ 80.368097][ T5089] should_fail+0x3c0/0x51c [ 80.369326][ T5089] __should_failslab+0xbc/0x10c [ 80.370769][ T5089] should_failslab+0x10/0x28 [ 80.372069][ T5089] slab_pre_alloc_hook+0x64/0xec [ 80.373419][ T5089] __kmalloc_node+0xb8/0x520 [ 80.374721][ T5089] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.376257][ T5089] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.377840][ T5089] nbd_start_device+0x14c/0xb40 [ 80.379161][ T5089] nbd_ioctl+0x514/0xc50 [ 80.380297][ T5089] blkdev_ioctl+0x5f8/0xbb8 [ 80.381581][ T5089] block_ioctl+0xa4/0x118 [ 80.382830][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.384267][ T5089] invoke_syscall+0x98/0x2b8 [ 80.385539][ T5089] el0_svc_common+0x138/0x258 [ 80.386808][ T5089] do_el0_svc+0x58/0x14c [ 80.387995][ T5089] el0_svc+0x78/0x1e0 [ 80.389115][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 80.390438][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 80.408872][ T5062] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.418615][ T5089] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.423644][ T5096] block nbd0: shutting down sockets [ 80.428134][ T5092] FAULT_INJECTION: forcing a failure. [ 80.428134][ T5092] name failslab, interval 1, probability 0, space 0, times 0 [ 80.435394][ T5092] CPU: 1 PID: 5092 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 80.438096][ T5092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.440881][ T5092] Call trace: [ 80.441757][ T5092] dump_backtrace+0x0/0x43c [ 80.442990][ T5092] show_stack+0x2c/0x3c [ 80.444131][ T5092] __dump_stack+0x30/0x40 [ 80.445338][ T5092] dump_stack_lvl+0xf8/0x160 [ 80.446578][ T5092] dump_stack+0x1c/0x5c [ 80.447677][ T5092] should_fail+0x3c0/0x51c [ 80.448848][ T5092] __should_failslab+0xbc/0x10c [ 80.450165][ T5092] should_failslab+0x10/0x28 [ 80.451450][ T5092] slab_pre_alloc_hook+0x64/0xec [ 80.452792][ T5092] kmem_cache_alloc+0x94/0x3e4 [ 80.454054][ T5092] new_inode_pseudo+0x10c/0x1fc [ 80.455370][ T5092] new_inode+0x38/0x174 [ 80.456473][ T5092] debugfs_create_dir+0xec/0x3f4 [ 80.457847][ T5092] nbd_start_device+0x3c8/0xb40 [ 80.459159][ T5092] nbd_ioctl+0x514/0xc50 [ 80.460342][ T5092] blkdev_ioctl+0x5f8/0xbb8 [ 80.461637][ T5092] block_ioctl+0xa4/0x118 [ 80.462827][ T5092] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.464168][ T5092] invoke_syscall+0x98/0x2b8 [ 80.465428][ T5092] el0_svc_common+0x138/0x258 [ 80.466763][ T5092] do_el0_svc+0x58/0x14c [ 80.467954][ T5092] el0_svc+0x78/0x1e0 [ 80.469029][ T5092] el0t_64_sync_handler+0xcc/0xe4 [ 80.470455][ T5092] el0t_64_sync+0x1a0/0x1a4 1970/01/01 00:01:20 executed programs: 110 [ 80.490780][ T5075] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.493932][ T5100] block nbd1: shutting down sockets [ 80.496513][ T5092] debugfs: out of free dentries, can not create directory 'nbd0' [ 80.514437][ T5092] block nbd0: Failed to create debugfs dir for 'nbd0' [ 80.550134][ T5095] FAULT_INJECTION: forcing a failure. [ 80.550134][ T5095] name failslab, interval 1, probability 0, space 0, times 0 [ 80.561200][ T5095] CPU: 0 PID: 5095 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 80.563915][ T5095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.566650][ T5095] Call trace: [ 80.567548][ T5095] dump_backtrace+0x0/0x43c [ 80.568811][ T5095] show_stack+0x2c/0x3c [ 80.569924][ T5095] __dump_stack+0x30/0x40 [ 80.571100][ T5095] dump_stack_lvl+0xf8/0x160 [ 80.572316][ T5095] dump_stack+0x1c/0x5c [ 80.573440][ T5095] should_fail+0x3c0/0x51c [ 80.574698][ T5095] __should_failslab+0xbc/0x10c [ 80.576061][ T5095] should_failslab+0x10/0x28 [ 80.577355][ T5095] slab_pre_alloc_hook+0x64/0xec [ 80.578705][ T5095] __kmalloc_node+0xb8/0x520 [ 80.579940][ T5095] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 80.581511][ T5095] nbd_start_device+0x14c/0xb40 [ 80.582830][ T5095] nbd_ioctl+0x514/0xc50 [ 80.583986][ T5095] blkdev_ioctl+0x5f8/0xbb8 [ 80.585250][ T5095] block_ioctl+0xa4/0x118 [ 80.586458][ T5095] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.587791][ T5095] invoke_syscall+0x98/0x2b8 [ 80.589108][ T5095] el0_svc_common+0x138/0x258 [ 80.590367][ T5095] do_el0_svc+0x58/0x14c [ 80.591503][ T5095] el0_svc+0x78/0x1e0 [ 80.592611][ T5095] el0t_64_sync_handler+0xcc/0xe4 [ 80.593987][ T5095] el0t_64_sync+0x1a0/0x1a4 [ 80.606525][ T5105] block nbd4: shutting down sockets [ 80.656251][ T5103] FAULT_INJECTION: forcing a failure. [ 80.656251][ T5103] name failslab, interval 1, probability 0, space 0, times 0 [ 80.666300][ T5108] block nbd3: shutting down sockets [ 80.673761][ T5110] block nbd0: shutting down sockets [ 80.676552][ T5103] CPU: 0 PID: 5103 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 80.677023][ T5110] FAULT_INJECTION: forcing a failure. [ 80.677023][ T5110] name failslab, interval 1, probability 0, space 0, times 0 [ 80.679304][ T5103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.679316][ T5103] Call trace: [ 80.679320][ T5103] dump_backtrace+0x0/0x43c [ 80.679337][ T5103] show_stack+0x2c/0x3c [ 80.679347][ T5103] __dump_stack+0x30/0x40 [ 80.684207][ T5112] block nbd2: shutting down sockets [ 80.685562][ T5103] dump_stack_lvl+0xf8/0x160 [ 80.692660][ T5103] dump_stack+0x1c/0x5c [ 80.693809][ T5103] should_fail+0x3c0/0x51c [ 80.695027][ T5103] __should_failslab+0xbc/0x10c [ 80.696325][ T5103] should_failslab+0x10/0x28 [ 80.697542][ T5103] slab_pre_alloc_hook+0x64/0xec [ 80.698930][ T5103] __kmalloc_node+0xb8/0x520 [ 80.700223][ T5103] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.701748][ T5103] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.703331][ T5103] nbd_start_device+0x14c/0xb40 [ 80.704655][ T5103] nbd_ioctl+0x514/0xc50 [ 80.705881][ T5103] blkdev_ioctl+0x5f8/0xbb8 [ 80.707136][ T5103] block_ioctl+0xa4/0x118 [ 80.708369][ T5103] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.709742][ T5103] invoke_syscall+0x98/0x2b8 [ 80.710996][ T5103] el0_svc_common+0x138/0x258 [ 80.712247][ T5103] do_el0_svc+0x58/0x14c [ 80.713401][ T5103] el0_svc+0x78/0x1e0 [ 80.714512][ T5103] el0t_64_sync_handler+0xcc/0xe4 [ 80.715943][ T5103] el0t_64_sync+0x1a0/0x1a4 [ 80.717189][ T5110] CPU: 1 PID: 5110 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 80.719949][ T5110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.722677][ T5110] Call trace: [ 80.723584][ T5110] dump_backtrace+0x0/0x43c [ 80.724825][ T5110] show_stack+0x2c/0x3c [ 80.725963][ T5110] __dump_stack+0x30/0x40 [ 80.727117][ T5110] dump_stack_lvl+0xf8/0x160 [ 80.728415][ T5110] dump_stack+0x1c/0x5c [ 80.729567][ T5110] should_fail+0x3c0/0x51c [ 80.730758][ T5110] __should_failslab+0xbc/0x10c [ 80.732096][ T5110] should_failslab+0x10/0x28 [ 80.733371][ T5110] slab_pre_alloc_hook+0x64/0xec [ 80.734714][ T5110] kmem_cache_alloc+0x94/0x3e4 [ 80.735955][ T5110] __d_alloc+0x3c/0x65c [ 80.737092][ T5110] d_alloc_parallel+0x80/0x1104 [ 80.738451][ T5110] __lookup_slow+0x104/0x380 [ 80.739775][ T5110] lookup_one_len+0x178/0x28c [ 80.741089][ T5110] start_creating+0x19c/0x2e0 [ 80.742378][ T5110] debugfs_create_dir+0x30/0x3f4 [ 80.743691][ T5110] nbd_start_device+0x3c8/0xb40 [ 80.745014][ T5110] nbd_ioctl+0x514/0xc50 [ 80.746170][ T5110] blkdev_ioctl+0x5f8/0xbb8 [ 80.747391][ T5110] block_ioctl+0xa4/0x118 [ 80.748559][ T5110] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.749939][ T5110] invoke_syscall+0x98/0x2b8 [ 80.751218][ T5110] el0_svc_common+0x138/0x258 [ 80.752516][ T5110] do_el0_svc+0x58/0x14c [ 80.753675][ T5110] el0_svc+0x78/0x1e0 [ 80.754754][ T5110] el0t_64_sync_handler+0xcc/0xe4 [ 80.756072][ T5103] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.756127][ T5110] el0t_64_sync+0x1a0/0x1a4 [ 80.768773][ T5110] block nbd0: Failed to create debugfs dir for 'nbd0' [ 80.786802][ T5108] FAULT_INJECTION: forcing a failure. [ 80.786802][ T5108] name failslab, interval 1, probability 0, space 0, times 0 [ 80.790364][ T5108] CPU: 0 PID: 5108 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 80.793055][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.795865][ T5108] Call trace: [ 80.796805][ T5108] dump_backtrace+0x0/0x43c [ 80.798040][ T5108] show_stack+0x2c/0x3c [ 80.799205][ T5108] __dump_stack+0x30/0x40 [ 80.800382][ T5108] dump_stack_lvl+0xf8/0x160 [ 80.801622][ T5108] dump_stack+0x1c/0x5c [ 80.802747][ T5108] should_fail+0x3c0/0x51c [ 80.804054][ T5108] __should_failslab+0xbc/0x10c [ 80.805394][ T5108] should_failslab+0x10/0x28 [ 80.806665][ T5108] slab_pre_alloc_hook+0x64/0xec [ 80.808029][ T5108] __kmalloc_node+0xb8/0x520 [ 80.809340][ T5108] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.810842][ T5108] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.812431][ T5108] nbd_start_device+0x14c/0xb40 [ 80.813777][ T5108] nbd_ioctl+0x514/0xc50 [ 80.814955][ T5108] blkdev_ioctl+0x5f8/0xbb8 [ 80.816212][ T5108] block_ioctl+0xa4/0x118 [ 80.817464][ T5108] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.818846][ T5108] invoke_syscall+0x98/0x2b8 [ 80.820111][ T5108] el0_svc_common+0x138/0x258 [ 80.821388][ T5108] do_el0_svc+0x58/0x14c [ 80.822573][ T5108] el0_svc+0x78/0x1e0 [ 80.823646][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 80.825036][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 80.831144][ T5112] FAULT_INJECTION: forcing a failure. [ 80.831144][ T5112] name failslab, interval 1, probability 0, space 0, times 0 [ 80.848982][ T5112] CPU: 0 PID: 5112 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 80.851751][ T5112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.854454][ T5112] Call trace: [ 80.855362][ T5112] dump_backtrace+0x0/0x43c [ 80.856592][ T5112] show_stack+0x2c/0x3c [ 80.857784][ T5112] __dump_stack+0x30/0x40 [ 80.858970][ T5112] dump_stack_lvl+0xf8/0x160 [ 80.860215][ T5112] dump_stack+0x1c/0x5c [ 80.861393][ T5112] should_fail+0x3c0/0x51c [ 80.862537][ T5112] __should_failslab+0xbc/0x10c [ 80.863897][ T5112] should_failslab+0x10/0x28 [ 80.865171][ T5112] slab_pre_alloc_hook+0x64/0xec [ 80.866633][ T5112] __kmalloc_node+0xb8/0x520 [ 80.867922][ T5112] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 80.869540][ T5112] nbd_start_device+0x14c/0xb40 [ 80.870862][ T5112] nbd_ioctl+0x514/0xc50 [ 80.872040][ T5112] blkdev_ioctl+0x5f8/0xbb8 [ 80.873357][ T5112] block_ioctl+0xa4/0x118 [ 80.874536][ T5112] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.875896][ T5112] invoke_syscall+0x98/0x2b8 [ 80.876726][ T5108] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.877220][ T5112] el0_svc_common+0x138/0x258 [ 80.877243][ T5112] do_el0_svc+0x58/0x14c [ 80.877253][ T5112] el0_svc+0x78/0x1e0 [ 80.877263][ T5112] el0t_64_sync_handler+0xcc/0xe4 [ 80.877271][ T5112] el0t_64_sync+0x1a0/0x1a4 [ 80.895774][ T5118] block nbd1: shutting down sockets [ 80.944028][ T5122] block nbd0: shutting down sockets [ 80.944043][ T5124] block nbd4: shutting down sockets [ 80.959472][ T5122] FAULT_INJECTION: forcing a failure. [ 80.959472][ T5122] name failslab, interval 1, probability 0, space 0, times 0 [ 80.967928][ T5117] FAULT_INJECTION: forcing a failure. [ 80.967928][ T5117] name failslab, interval 1, probability 0, space 0, times 0 [ 80.971171][ T5122] CPU: 0 PID: 5122 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 80.974257][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 80.976973][ T5122] Call trace: [ 80.977910][ T5122] dump_backtrace+0x0/0x43c [ 80.979167][ T5122] show_stack+0x2c/0x3c [ 80.980352][ T5122] __dump_stack+0x30/0x40 [ 80.981596][ T5122] dump_stack_lvl+0xf8/0x160 [ 80.982853][ T5122] dump_stack+0x1c/0x5c [ 80.984029][ T5122] should_fail+0x3c0/0x51c [ 80.985284][ T5122] __should_failslab+0xbc/0x10c [ 80.986610][ T5122] should_failslab+0x10/0x28 [ 80.987912][ T5122] slab_pre_alloc_hook+0x64/0xec [ 80.989269][ T5122] kmem_cache_alloc+0x94/0x3e4 [ 80.990631][ T5122] new_inode_pseudo+0x10c/0x1fc [ 80.991992][ T5122] new_inode+0x38/0x174 [ 80.993173][ T5122] debugfs_create_dir+0xec/0x3f4 [ 80.994561][ T5122] nbd_start_device+0x3c8/0xb40 [ 80.995945][ T5122] nbd_ioctl+0x514/0xc50 [ 80.997108][ T5122] blkdev_ioctl+0x5f8/0xbb8 [ 80.998377][ T5122] block_ioctl+0xa4/0x118 [ 80.999603][ T5122] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.000970][ T5122] invoke_syscall+0x98/0x2b8 [ 81.002277][ T5122] el0_svc_common+0x138/0x258 [ 81.003556][ T5122] do_el0_svc+0x58/0x14c [ 81.004758][ T5122] el0_svc+0x78/0x1e0 [ 81.005861][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 81.007184][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 81.008408][ T5117] CPU: 1 PID: 5117 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 81.011110][ T5117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.013850][ T5117] Call trace: [ 81.014751][ T5117] dump_backtrace+0x0/0x43c [ 81.016027][ T5117] show_stack+0x2c/0x3c [ 81.017100][ T5117] __dump_stack+0x30/0x40 [ 81.018290][ T5117] dump_stack_lvl+0xf8/0x160 [ 81.019549][ T5117] dump_stack+0x1c/0x5c [ 81.020659][ T5117] should_fail+0x3c0/0x51c [ 81.021881][ T5117] __should_failslab+0xbc/0x10c [ 81.023218][ T5117] should_failslab+0x10/0x28 [ 81.024471][ T5117] slab_pre_alloc_hook+0x64/0xec [ 81.025833][ T5117] __kmalloc_node+0xb8/0x520 [ 81.027087][ T5117] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.028555][ T5117] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.030181][ T5117] nbd_start_device+0x14c/0xb40 [ 81.031534][ T5117] nbd_ioctl+0x514/0xc50 [ 81.032703][ T5117] blkdev_ioctl+0x5f8/0xbb8 [ 81.033948][ T5117] block_ioctl+0xa4/0x118 [ 81.035110][ T5117] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.036461][ T5117] invoke_syscall+0x98/0x2b8 [ 81.037740][ T5117] el0_svc_common+0x138/0x258 [ 81.038984][ T5117] do_el0_svc+0x58/0x14c [ 81.040146][ T5117] el0_svc+0x78/0x1e0 [ 81.041250][ T5117] el0t_64_sync_handler+0xcc/0xe4 [ 81.042682][ T5117] el0t_64_sync+0x1a0/0x1a4 [ 81.050511][ T5122] debugfs: out of free dentries, can not create directory 'nbd0' [ 81.051548][ T5117] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.058191][ T5122] block nbd0: Failed to create debugfs dir for 'nbd0' [ 81.077720][ T5124] FAULT_INJECTION: forcing a failure. [ 81.077720][ T5124] name failslab, interval 1, probability 0, space 0, times 0 [ 81.081130][ T5124] CPU: 1 PID: 5124 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 81.083731][ T5124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.086443][ T5124] Call trace: [ 81.087311][ T5124] dump_backtrace+0x0/0x43c [ 81.088528][ T5124] show_stack+0x2c/0x3c [ 81.089684][ T5124] __dump_stack+0x30/0x40 [ 81.090844][ T5124] dump_stack_lvl+0xf8/0x160 [ 81.092116][ T5124] dump_stack+0x1c/0x5c [ 81.093268][ T5124] should_fail+0x3c0/0x51c [ 81.094515][ T5124] __should_failslab+0xbc/0x10c [ 81.095862][ T5124] should_failslab+0x10/0x28 [ 81.097155][ T5124] slab_pre_alloc_hook+0x64/0xec [ 81.098511][ T5124] __kmalloc_node+0xb8/0x520 [ 81.099770][ T5124] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.101252][ T5124] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.102802][ T5124] nbd_start_device+0x14c/0xb40 [ 81.104135][ T5124] nbd_ioctl+0x514/0xc50 [ 81.105290][ T5124] blkdev_ioctl+0x5f8/0xbb8 [ 81.106509][ T5124] block_ioctl+0xa4/0x118 [ 81.107703][ T5124] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.109007][ T5124] invoke_syscall+0x98/0x2b8 [ 81.110294][ T5124] el0_svc_common+0x138/0x258 [ 81.111502][ T5124] do_el0_svc+0x58/0x14c [ 81.112666][ T5124] el0_svc+0x78/0x1e0 [ 81.113746][ T5124] el0t_64_sync_handler+0xcc/0xe4 [ 81.115109][ T5124] el0t_64_sync+0x1a0/0x1a4 [ 81.117172][ T5124] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.143773][ T5135] block nbd3: Device being setup by another task [ 81.145764][ T5132] block nbd2: shutting down sockets [ 81.147666][ T5128] block nbd3: shutting down sockets [ 81.174077][ T5128] FAULT_INJECTION: forcing a failure. [ 81.174077][ T5128] name failslab, interval 1, probability 0, space 0, times 0 [ 81.179675][ T5129] FAULT_INJECTION: forcing a failure. [ 81.179675][ T5129] name failslab, interval 1, probability 0, space 0, times 0 [ 81.193404][ T5128] CPU: 1 PID: 5128 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 81.196285][ T5128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.199022][ T5128] Call trace: [ 81.199954][ T5128] dump_backtrace+0x0/0x43c [ 81.201190][ T5128] show_stack+0x2c/0x3c [ 81.202347][ T5128] __dump_stack+0x30/0x40 [ 81.203516][ T5128] dump_stack_lvl+0xf8/0x160 [ 81.204758][ T5128] dump_stack+0x1c/0x5c [ 81.205934][ T5128] should_fail+0x3c0/0x51c [ 81.207150][ T5128] __should_failslab+0xbc/0x10c [ 81.208494][ T5128] should_failslab+0x10/0x28 [ 81.209730][ T5128] slab_pre_alloc_hook+0x64/0xec [ 81.211051][ T5128] kmem_cache_alloc+0x94/0x3e4 [ 81.212376][ T5128] new_inode_pseudo+0x10c/0x1fc [ 81.213712][ T5128] new_inode+0x38/0x174 [ 81.214838][ T5128] debugfs_create_dir+0xec/0x3f4 [ 81.216180][ T5128] nbd_start_device+0x3c8/0xb40 [ 81.217553][ T5128] nbd_ioctl+0x514/0xc50 [ 81.218771][ T5128] blkdev_ioctl+0x5f8/0xbb8 [ 81.219981][ T5128] block_ioctl+0xa4/0x118 [ 81.221187][ T5128] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.222539][ T5128] invoke_syscall+0x98/0x2b8 [ 81.223820][ T5128] el0_svc_common+0x138/0x258 [ 81.225092][ T5128] do_el0_svc+0x58/0x14c [ 81.226193][ T5128] el0_svc+0x78/0x1e0 [ 81.227316][ T5128] el0t_64_sync_handler+0xcc/0xe4 [ 81.228688][ T5128] el0t_64_sync+0x1a0/0x1a4 [ 81.231568][ T5129] CPU: 1 PID: 5129 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 81.234286][ T5129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.237056][ T5129] Call trace: [ 81.237939][ T5129] dump_backtrace+0x0/0x43c [ 81.239243][ T5129] show_stack+0x2c/0x3c [ 81.240376][ T5129] __dump_stack+0x30/0x40 [ 81.241542][ T5129] dump_stack_lvl+0xf8/0x160 [ 81.242794][ T5129] dump_stack+0x1c/0x5c [ 81.243921][ T5129] should_fail+0x3c0/0x51c [ 81.245143][ T5129] __should_failslab+0xbc/0x10c [ 81.245430][ T5128] debugfs: out of free dentries, can not create directory 'nbd3' [ 81.246489][ T5129] should_failslab+0x10/0x28 [ 81.246505][ T5129] slab_pre_alloc_hook+0x64/0xec [ 81.246516][ T5129] __kmalloc_node+0xb8/0x520 [ 81.248683][ T5128] block nbd3: Failed to create debugfs dir for 'nbd3' [ 81.249896][ T5129] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.255890][ T5129] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.257513][ T5129] nbd_start_device+0x14c/0xb40 [ 81.258912][ T5129] nbd_ioctl+0x514/0xc50 [ 81.260093][ T5129] blkdev_ioctl+0x5f8/0xbb8 [ 81.261333][ T5129] block_ioctl+0xa4/0x118 [ 81.262507][ T5129] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.263901][ T5129] invoke_syscall+0x98/0x2b8 [ 81.265149][ T5129] el0_svc_common+0x138/0x258 [ 81.266416][ T5129] do_el0_svc+0x58/0x14c [ 81.267579][ T5129] el0_svc+0x78/0x1e0 [ 81.268694][ T5129] el0t_64_sync_handler+0xcc/0xe4 [ 81.270102][ T5129] el0t_64_sync+0x1a0/0x1a4 [ 81.279791][ T5129] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.283665][ T5142] block nbd0: shutting down sockets [ 81.287662][ T5137] FAULT_INJECTION: forcing a failure. [ 81.287662][ T5137] name failslab, interval 1, probability 0, space 0, times 0 [ 81.292139][ T5137] CPU: 1 PID: 5137 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 81.294990][ T5137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.297762][ T5137] Call trace: [ 81.298683][ T5137] dump_backtrace+0x0/0x43c [ 81.299919][ T5137] show_stack+0x2c/0x3c [ 81.301056][ T5137] __dump_stack+0x30/0x40 [ 81.302250][ T5137] dump_stack_lvl+0xf8/0x160 [ 81.303458][ T5137] dump_stack+0x1c/0x5c [ 81.304596][ T5137] should_fail+0x3c0/0x51c [ 81.305738][ T5137] __should_failslab+0xbc/0x10c [ 81.307030][ T5137] should_failslab+0x10/0x28 [ 81.308225][ T5137] slab_pre_alloc_hook+0x64/0xec [ 81.309639][ T5137] kmem_cache_alloc+0x94/0x3e4 [ 81.310904][ T5137] new_inode_pseudo+0x10c/0x1fc [ 81.312212][ T5137] new_inode+0x38/0x174 [ 81.313332][ T5137] debugfs_create_dir+0xec/0x3f4 [ 81.314656][ T5137] nbd_start_device+0x3c8/0xb40 [ 81.315996][ T5137] nbd_ioctl+0x514/0xc50 [ 81.317158][ T5137] blkdev_ioctl+0x5f8/0xbb8 [ 81.318346][ T5137] block_ioctl+0xa4/0x118 [ 81.319502][ T5137] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.320845][ T5137] invoke_syscall+0x98/0x2b8 [ 81.322073][ T5137] el0_svc_common+0x138/0x258 [ 81.323319][ T5137] do_el0_svc+0x58/0x14c [ 81.324515][ T5137] el0_svc+0x78/0x1e0 [ 81.325588][ T5137] el0t_64_sync_handler+0xcc/0xe4 [ 81.326934][ T5137] el0t_64_sync+0x1a0/0x1a4 [ 81.329455][ T5137] debugfs: out of free dentries, can not create directory 'nbd0' [ 81.331980][ T5137] block nbd0: Failed to create debugfs dir for 'nbd0' [ 81.353573][ T5143] block nbd1: shutting down sockets [ 81.356313][ T5144] block nbd4: shutting down sockets [ 81.397337][ T5139] FAULT_INJECTION: forcing a failure. [ 81.397337][ T5139] name failslab, interval 1, probability 0, space 0, times 0 [ 81.401485][ T5146] block nbd3: shutting down sockets [ 81.410873][ T5139] CPU: 0 PID: 5139 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 81.413379][ T5141] FAULT_INJECTION: forcing a failure. [ 81.413379][ T5141] name failslab, interval 1, probability 0, space 0, times 0 [ 81.413526][ T5139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.419664][ T5139] Call trace: [ 81.420541][ T5139] dump_backtrace+0x0/0x43c [ 81.421800][ T5139] show_stack+0x2c/0x3c [ 81.422961][ T5139] __dump_stack+0x30/0x40 [ 81.424137][ T5139] dump_stack_lvl+0xf8/0x160 [ 81.425421][ T5139] dump_stack+0x1c/0x5c [ 81.426561][ T5139] should_fail+0x3c0/0x51c [ 81.427726][ T5139] __should_failslab+0xbc/0x10c [ 81.429055][ T5139] should_failslab+0x10/0x28 [ 81.430270][ T5139] slab_pre_alloc_hook+0x64/0xec [ 81.431673][ T5139] __kmalloc_node+0xb8/0x520 [ 81.432928][ T5139] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.434503][ T5139] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.436088][ T5139] nbd_start_device+0x14c/0xb40 [ 81.437427][ T5139] nbd_ioctl+0x514/0xc50 [ 81.438611][ T5139] blkdev_ioctl+0x5f8/0xbb8 [ 81.439833][ T5139] block_ioctl+0xa4/0x118 [ 81.440988][ T5139] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.442357][ T5139] invoke_syscall+0x98/0x2b8 [ 81.443605][ T5139] el0_svc_common+0x138/0x258 [ 81.444884][ T5139] do_el0_svc+0x58/0x14c [ 81.446037][ T5139] el0_svc+0x78/0x1e0 [ 81.447109][ T5139] el0t_64_sync_handler+0xcc/0xe4 [ 81.448494][ T5139] el0t_64_sync+0x1a0/0x1a4 [ 81.449697][ T5141] CPU: 1 PID: 5141 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 81.452415][ T5141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.455119][ T5141] Call trace: [ 81.456022][ T5141] dump_backtrace+0x0/0x43c [ 81.457224][ T5141] show_stack+0x2c/0x3c [ 81.458313][ T5141] __dump_stack+0x30/0x40 [ 81.459520][ T5141] dump_stack_lvl+0xf8/0x160 [ 81.460784][ T5141] dump_stack+0x1c/0x5c [ 81.461906][ T5141] should_fail+0x3c0/0x51c [ 81.462695][ T5139] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.463074][ T5141] __should_failslab+0xbc/0x10c [ 81.466303][ T5141] should_failslab+0x10/0x28 [ 81.467560][ T5141] slab_pre_alloc_hook+0x64/0xec [ 81.468930][ T5141] __kmalloc_node+0xb8/0x520 [ 81.470181][ T5141] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 81.471723][ T5141] nbd_start_device+0x14c/0xb40 [ 81.473015][ T5141] nbd_ioctl+0x514/0xc50 [ 81.474156][ T5141] blkdev_ioctl+0x5f8/0xbb8 [ 81.475402][ T5141] block_ioctl+0xa4/0x118 [ 81.476556][ T5141] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.477901][ T5141] invoke_syscall+0x98/0x2b8 [ 81.479090][ T5141] el0_svc_common+0x138/0x258 [ 81.480350][ T5141] do_el0_svc+0x58/0x14c [ 81.481467][ T5141] el0_svc+0x78/0x1e0 [ 81.482527][ T5141] el0t_64_sync_handler+0xcc/0xe4 [ 81.483899][ T5141] el0t_64_sync+0x1a0/0x1a4 [ 81.510002][ T5151] FAULT_INJECTION: forcing a failure. [ 81.510002][ T5151] name failslab, interval 1, probability 0, space 0, times 0 [ 81.514067][ T5148] block nbd2: shutting down sockets [ 81.539297][ T5151] CPU: 0 PID: 5151 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 81.542028][ T5151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.544970][ T5151] Call trace: [ 81.545880][ T5151] dump_backtrace+0x0/0x43c [ 81.547172][ T5151] show_stack+0x2c/0x3c [ 81.548310][ T5151] __dump_stack+0x30/0x40 [ 81.549446][ T5151] dump_stack_lvl+0xf8/0x160 [ 81.550742][ T5151] dump_stack+0x1c/0x5c [ 81.551877][ T5151] should_fail+0x3c0/0x51c [ 81.553109][ T5151] __should_failslab+0xbc/0x10c [ 81.554455][ T5151] should_failslab+0x10/0x28 [ 81.555716][ T5151] slab_pre_alloc_hook+0x64/0xec [ 81.557078][ T5151] __kmalloc_node+0xb8/0x520 [ 81.558385][ T5151] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.559827][ T5151] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.561435][ T5151] nbd_start_device+0x14c/0xb40 [ 81.562754][ T5151] nbd_ioctl+0x514/0xc50 [ 81.563922][ T5151] blkdev_ioctl+0x5f8/0xbb8 [ 81.565168][ T5151] block_ioctl+0xa4/0x118 [ 81.565785][ T5150] block nbd0: shutting down sockets [ 81.566302][ T5151] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.569004][ T5151] invoke_syscall+0x98/0x2b8 [ 81.569148][ T5150] FAULT_INJECTION: forcing a failure. [ 81.569148][ T5150] name failslab, interval 1, probability 0, space 0, times 0 [ 81.570238][ T5151] el0_svc_common+0x138/0x258 [ 81.574820][ T5151] do_el0_svc+0x58/0x14c [ 81.575954][ T5151] el0_svc+0x78/0x1e0 [ 81.577041][ T5151] el0t_64_sync_handler+0xcc/0xe4 [ 81.578408][ T5151] el0t_64_sync+0x1a0/0x1a4 [ 81.579642][ T5150] CPU: 1 PID: 5150 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 81.582399][ T5150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.583516][ T5151] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.585119][ T5150] Call trace: [ 81.585127][ T5150] dump_backtrace+0x0/0x43c [ 81.585142][ T5150] show_stack+0x2c/0x3c [ 81.585152][ T5150] __dump_stack+0x30/0x40 [ 81.585162][ T5150] dump_stack_lvl+0xf8/0x160 [ 81.585170][ T5150] dump_stack+0x1c/0x5c [ 81.593516][ T5150] should_fail+0x3c0/0x51c [ 81.594667][ T5150] __should_failslab+0xbc/0x10c [ 81.595988][ T5150] should_failslab+0x10/0x28 [ 81.597208][ T5150] slab_pre_alloc_hook+0x64/0xec [ 81.598580][ T5150] kmem_cache_alloc+0x94/0x3e4 [ 81.599861][ T5150] new_inode_pseudo+0x10c/0x1fc [ 81.601168][ T5150] new_inode+0x38/0x174 [ 81.602312][ T5150] debugfs_create_dir+0xec/0x3f4 [ 81.603617][ T5150] nbd_start_device+0x3c8/0xb40 [ 81.604948][ T5150] nbd_ioctl+0x514/0xc50 [ 81.606217][ T5150] blkdev_ioctl+0x5f8/0xbb8 [ 81.607459][ T5150] block_ioctl+0xa4/0x118 [ 81.608653][ T5150] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.609990][ T5150] invoke_syscall+0x98/0x2b8 [ 81.611216][ T5150] el0_svc_common+0x138/0x258 [ 81.612435][ T5150] do_el0_svc+0x58/0x14c [ 81.613535][ T5150] el0_svc+0x78/0x1e0 [ 81.614644][ T5150] el0t_64_sync_handler+0xcc/0xe4 [ 81.615998][ T5150] el0t_64_sync+0x1a0/0x1a4 [ 81.624093][ T5148] FAULT_INJECTION: forcing a failure. [ 81.624093][ T5148] name failslab, interval 1, probability 0, space 0, times 0 [ 81.628562][ T5150] debugfs: out of free dentries, can not create directory 'nbd0' [ 81.629926][ T5148] CPU: 1 PID: 5148 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 81.630732][ T5150] block nbd0: Failed to create debugfs dir for 'nbd0' [ 81.633344][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.633356][ T5148] Call trace: [ 81.633359][ T5148] dump_backtrace+0x0/0x43c [ 81.633375][ T5148] show_stack+0x2c/0x3c [ 81.633385][ T5148] __dump_stack+0x30/0x40 [ 81.633394][ T5148] dump_stack_lvl+0xf8/0x160 [ 81.633402][ T5148] dump_stack+0x1c/0x5c [ 81.633410][ T5148] should_fail+0x3c0/0x51c [ 81.633419][ T5148] __should_failslab+0xbc/0x10c [ 81.633429][ T5148] should_failslab+0x10/0x28 [ 81.633439][ T5148] slab_pre_alloc_hook+0x64/0xec [ 81.633448][ T5148] __kmalloc_node+0xb8/0x520 [ 81.633456][ T5148] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.652331][ T5148] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.653957][ T5148] nbd_start_device+0x14c/0xb40 [ 81.655321][ T5148] nbd_ioctl+0x514/0xc50 [ 81.656475][ T5148] blkdev_ioctl+0x5f8/0xbb8 [ 81.657673][ T5148] block_ioctl+0xa4/0x118 [ 81.658865][ T5148] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.660258][ T5148] invoke_syscall+0x98/0x2b8 [ 81.661531][ T5148] el0_svc_common+0x138/0x258 [ 81.662843][ T5148] do_el0_svc+0x58/0x14c [ 81.664013][ T5148] el0_svc+0x78/0x1e0 [ 81.665095][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 81.666497][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 81.688689][ T5156] block nbd1: shutting down sockets [ 81.693684][ T5157] block nbd4: shutting down sockets [ 81.713959][ T5148] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.751154][ T5156] FAULT_INJECTION: forcing a failure. [ 81.751154][ T5156] name failslab, interval 1, probability 0, space 0, times 0 [ 81.760554][ T5156] CPU: 1 PID: 5156 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 81.763373][ T5156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.766082][ T5156] Call trace: [ 81.766979][ T5156] dump_backtrace+0x0/0x43c [ 81.768181][ T5156] show_stack+0x2c/0x3c [ 81.769342][ T5156] __dump_stack+0x30/0x40 [ 81.770541][ T5156] dump_stack_lvl+0xf8/0x160 [ 81.771811][ T5156] dump_stack+0x1c/0x5c [ 81.772952][ T5156] should_fail+0x3c0/0x51c [ 81.774125][ T5156] __should_failslab+0xbc/0x10c [ 81.775528][ T5156] should_failslab+0x10/0x28 [ 81.776831][ T5156] slab_pre_alloc_hook+0x64/0xec [ 81.778166][ T5156] __kmalloc_node+0xb8/0x520 [ 81.779380][ T5156] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.780836][ T5156] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.782450][ T5156] nbd_start_device+0x14c/0xb40 [ 81.783761][ T5156] nbd_ioctl+0x514/0xc50 [ 81.784950][ T5156] blkdev_ioctl+0x5f8/0xbb8 [ 81.786163][ T5156] block_ioctl+0xa4/0x118 [ 81.787313][ T5156] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.788685][ T5156] invoke_syscall+0x98/0x2b8 [ 81.789995][ T5156] el0_svc_common+0x138/0x258 [ 81.791271][ T5156] do_el0_svc+0x58/0x14c [ 81.792425][ T5156] el0_svc+0x78/0x1e0 [ 81.793493][ T5156] el0t_64_sync_handler+0xcc/0xe4 [ 81.794876][ T5156] el0t_64_sync+0x1a0/0x1a4 [ 81.804702][ T5156] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.805694][ T5164] block nbd3: shutting down sockets [ 81.819838][ T5157] FAULT_INJECTION: forcing a failure. [ 81.819838][ T5157] name failslab, interval 1, probability 0, space 0, times 0 [ 81.836220][ T5157] CPU: 1 PID: 5157 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 81.838993][ T5157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.841767][ T5157] Call trace: [ 81.842683][ T5157] dump_backtrace+0x0/0x43c [ 81.843909][ T5157] show_stack+0x2c/0x3c [ 81.845028][ T5157] __dump_stack+0x30/0x40 [ 81.846204][ T5157] dump_stack_lvl+0xf8/0x160 [ 81.847450][ T5157] dump_stack+0x1c/0x5c [ 81.848532][ T5157] should_fail+0x3c0/0x51c [ 81.849729][ T5157] __should_failslab+0xbc/0x10c [ 81.851086][ T5157] should_failslab+0x10/0x28 [ 81.852337][ T5157] slab_pre_alloc_hook+0x64/0xec [ 81.853698][ T5157] __kmalloc_node+0xb8/0x520 [ 81.854920][ T5157] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 81.856534][ T5157] nbd_start_device+0x14c/0xb40 [ 81.857172][ T5163] block nbd0: shutting down sockets [ 81.857887][ T5157] nbd_ioctl+0x514/0xc50 [ 81.860479][ T5157] blkdev_ioctl+0x5f8/0xbb8 [ 81.861735][ T5157] block_ioctl+0xa4/0x118 [ 81.862882][ T5157] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.864239][ T5157] invoke_syscall+0x98/0x2b8 [ 81.865502][ T5157] el0_svc_common+0x138/0x258 [ 81.866782][ T5157] do_el0_svc+0x58/0x14c [ 81.867954][ T5157] el0_svc+0x78/0x1e0 [ 81.869058][ T5157] el0t_64_sync_handler+0xcc/0xe4 [ 81.870416][ T5157] el0t_64_sync+0x1a0/0x1a4 [ 81.889740][ T5163] FAULT_INJECTION: forcing a failure. [ 81.889740][ T5163] name failslab, interval 1, probability 0, space 0, times 0 [ 81.903355][ T5163] CPU: 1 PID: 5163 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 81.906068][ T5163] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.908834][ T5163] Call trace: [ 81.909772][ T5163] dump_backtrace+0x0/0x43c [ 81.911075][ T5163] show_stack+0x2c/0x3c [ 81.912202][ T5163] __dump_stack+0x30/0x40 [ 81.913425][ T5163] dump_stack_lvl+0xf8/0x160 [ 81.914660][ T5163] dump_stack+0x1c/0x5c [ 81.915841][ T5163] should_fail+0x3c0/0x51c [ 81.917048][ T5163] __should_failslab+0xbc/0x10c [ 81.918401][ T5163] should_failslab+0x10/0x28 [ 81.919698][ T5163] slab_pre_alloc_hook+0x64/0xec [ 81.921106][ T5163] kmem_cache_alloc+0x94/0x3e4 [ 81.922453][ T5163] new_inode_pseudo+0x10c/0x1fc [ 81.923800][ T5163] new_inode+0x38/0x174 [ 81.924912][ T5163] debugfs_create_dir+0xec/0x3f4 [ 81.926293][ T5163] nbd_start_device+0x3c8/0xb40 [ 81.927585][ T5163] nbd_ioctl+0x514/0xc50 [ 81.928722][ T5163] blkdev_ioctl+0x5f8/0xbb8 [ 81.929955][ T5163] block_ioctl+0xa4/0x118 [ 81.931175][ T5163] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.932469][ T5163] invoke_syscall+0x98/0x2b8 [ 81.933681][ T5163] el0_svc_common+0x138/0x258 [ 81.935022][ T5163] do_el0_svc+0x58/0x14c [ 81.936156][ T5163] el0_svc+0x78/0x1e0 [ 81.937269][ T5163] el0t_64_sync_handler+0xcc/0xe4 [ 81.938627][ T5163] el0t_64_sync+0x1a0/0x1a4 [ 81.951213][ T5163] debugfs: out of free dentries, can not create directory 'nbd0' [ 81.959855][ T5163] block nbd0: Failed to create debugfs dir for 'nbd0' [ 81.959923][ T5161] FAULT_INJECTION: forcing a failure. [ 81.959923][ T5161] name failslab, interval 1, probability 0, space 0, times 0 [ 81.980796][ T5161] CPU: 1 PID: 5161 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 81.983509][ T5161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 81.986237][ T5161] Call trace: [ 81.987112][ T5161] dump_backtrace+0x0/0x43c [ 81.988374][ T5161] show_stack+0x2c/0x3c [ 81.989531][ T5161] __dump_stack+0x30/0x40 [ 81.990724][ T5161] dump_stack_lvl+0xf8/0x160 [ 81.991989][ T5161] dump_stack+0x1c/0x5c [ 81.993144][ T5161] should_fail+0x3c0/0x51c [ 81.994336][ T5161] __should_failslab+0xbc/0x10c [ 81.995639][ T5161] should_failslab+0x10/0x28 [ 81.996846][ T5161] slab_pre_alloc_hook+0x64/0xec [ 81.998214][ T5161] __kmalloc_node+0xb8/0x520 [ 81.999496][ T5161] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.001001][ T5161] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.002603][ T5161] nbd_start_device+0x14c/0xb40 [ 82.003932][ T5161] nbd_ioctl+0x514/0xc50 [ 82.005099][ T5161] blkdev_ioctl+0x5f8/0xbb8 [ 82.006352][ T5161] block_ioctl+0xa4/0x118 [ 82.007523][ T5161] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.008856][ T5161] invoke_syscall+0x98/0x2b8 [ 82.010154][ T5161] el0_svc_common+0x138/0x258 [ 82.011399][ T5161] do_el0_svc+0x58/0x14c [ 82.012571][ T5161] el0_svc+0x78/0x1e0 [ 82.013706][ T5161] el0t_64_sync_handler+0xcc/0xe4 [ 82.015033][ T5161] el0t_64_sync+0x1a0/0x1a4 [ 82.019732][ T5161] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.023679][ T5167] block nbd2: shutting down sockets [ 82.033589][ T5174] block nbd1: shutting down sockets [ 82.048038][ T5167] FAULT_INJECTION: forcing a failure. [ 82.048038][ T5167] name failslab, interval 1, probability 0, space 0, times 0 [ 82.051973][ T5167] CPU: 1 PID: 5167 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 82.054723][ T5167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.057382][ T5167] Call trace: [ 82.058275][ T5167] dump_backtrace+0x0/0x43c [ 82.059491][ T5167] show_stack+0x2c/0x3c [ 82.060617][ T5167] __dump_stack+0x30/0x40 [ 82.061757][ T5167] dump_stack_lvl+0xf8/0x160 [ 82.062999][ T5167] dump_stack+0x1c/0x5c [ 82.064085][ T5167] should_fail+0x3c0/0x51c [ 82.065280][ T5167] __should_failslab+0xbc/0x10c [ 82.066553][ T5167] should_failslab+0x10/0x28 [ 82.067762][ T5167] slab_pre_alloc_hook+0x64/0xec [ 82.069105][ T5167] __kmalloc_node+0xb8/0x520 [ 82.070397][ T5167] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.071843][ T5167] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.073429][ T5167] nbd_start_device+0x14c/0xb40 [ 82.074714][ T5167] nbd_ioctl+0x514/0xc50 [ 82.075826][ T5167] blkdev_ioctl+0x5f8/0xbb8 [ 82.077009][ T5167] block_ioctl+0xa4/0x118 [ 82.078164][ T5167] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.079454][ T5167] invoke_syscall+0x98/0x2b8 [ 82.080672][ T5167] el0_svc_common+0x138/0x258 [ 82.081929][ T5167] do_el0_svc+0x58/0x14c [ 82.083161][ T5167] el0_svc+0x78/0x1e0 [ 82.084238][ T5167] el0t_64_sync_handler+0xcc/0xe4 [ 82.085594][ T5167] el0t_64_sync+0x1a0/0x1a4 [ 82.099477][ T5167] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.113535][ T5176] block nbd4: shutting down sockets [ 82.113701][ T5177] block nbd0: shutting down sockets [ 82.125196][ T5175] FAULT_INJECTION: forcing a failure. [ 82.125196][ T5175] name failslab, interval 1, probability 0, space 0, times 0 [ 82.133013][ T5175] CPU: 1 PID: 5175 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 82.135699][ T5175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.138467][ T5175] Call trace: [ 82.139366][ T5175] dump_backtrace+0x0/0x43c [ 82.140570][ T5175] show_stack+0x2c/0x3c [ 82.141712][ T5175] __dump_stack+0x30/0x40 [ 82.142427][ T5169] FAULT_INJECTION: forcing a failure. [ 82.142427][ T5169] name failslab, interval 1, probability 0, space 0, times 0 [ 82.142857][ T5175] dump_stack_lvl+0xf8/0x160 [ 82.147619][ T5175] dump_stack+0x1c/0x5c [ 82.148869][ T5175] should_fail+0x3c0/0x51c [ 82.150072][ T5175] __should_failslab+0xbc/0x10c [ 82.151396][ T5175] should_failslab+0x10/0x28 [ 82.152623][ T5175] slab_pre_alloc_hook+0x64/0xec [ 82.153918][ T5175] kmem_cache_alloc+0x94/0x3e4 [ 82.155211][ T5175] new_inode_pseudo+0x10c/0x1fc [ 82.156500][ T5175] new_inode+0x38/0x174 [ 82.157625][ T5175] debugfs_create_dir+0xec/0x3f4 [ 82.159016][ T5175] nbd_start_device+0x3c8/0xb40 [ 82.160358][ T5175] nbd_ioctl+0x514/0xc50 [ 82.161524][ T5175] blkdev_ioctl+0x5f8/0xbb8 [ 82.162743][ T5175] block_ioctl+0xa4/0x118 [ 82.163938][ T5175] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.165335][ T5175] invoke_syscall+0x98/0x2b8 [ 82.166598][ T5175] el0_svc_common+0x138/0x258 [ 82.167846][ T5175] do_el0_svc+0x58/0x14c [ 82.169050][ T5175] el0_svc+0x78/0x1e0 [ 82.170130][ T5175] el0t_64_sync_handler+0xcc/0xe4 [ 82.171511][ T5175] el0t_64_sync+0x1a0/0x1a4 [ 82.180035][ T5169] CPU: 0 PID: 5169 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 82.182776][ T5169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.185524][ T5169] Call trace: [ 82.186399][ T5169] dump_backtrace+0x0/0x43c [ 82.187616][ T5169] show_stack+0x2c/0x3c [ 82.188762][ T5169] __dump_stack+0x30/0x40 [ 82.189981][ T5169] dump_stack_lvl+0xf8/0x160 [ 82.190545][ T5175] debugfs: out of free dentries, can not create directory 'nbd0' [ 82.191237][ T5169] dump_stack+0x1c/0x5c [ 82.191251][ T5169] should_fail+0x3c0/0x51c [ 82.191262][ T5169] __should_failslab+0xbc/0x10c [ 82.191272][ T5169] should_failslab+0x10/0x28 [ 82.198103][ T5169] slab_pre_alloc_hook+0x64/0xec [ 82.199448][ T5169] __kmalloc_node+0xb8/0x520 [ 82.200709][ T5169] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.202176][ T5169] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.203141][ T5175] block nbd0: Failed to create debugfs dir for 'nbd0' [ 82.203740][ T5169] nbd_start_device+0x14c/0xb40 [ 82.203757][ T5169] nbd_ioctl+0x514/0xc50 [ 82.203777][ T5169] blkdev_ioctl+0x5f8/0xbb8 [ 82.209293][ T5169] block_ioctl+0xa4/0x118 [ 82.210571][ T5169] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.211924][ T5169] invoke_syscall+0x98/0x2b8 [ 82.213209][ T5169] el0_svc_common+0x138/0x258 [ 82.214515][ T5169] do_el0_svc+0x58/0x14c [ 82.215729][ T5169] el0_svc+0x78/0x1e0 [ 82.216862][ T5169] el0t_64_sync_handler+0xcc/0xe4 [ 82.218205][ T5169] el0t_64_sync+0x1a0/0x1a4 [ 82.223414][ T5169] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.224617][ T5173] FAULT_INJECTION: forcing a failure. [ 82.224617][ T5173] name failslab, interval 1, probability 0, space 0, times 0 [ 82.228788][ T5173] CPU: 0 PID: 5173 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 82.231535][ T5173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.234304][ T5173] Call trace: [ 82.235201][ T5173] dump_backtrace+0x0/0x43c [ 82.236513][ T5173] show_stack+0x2c/0x3c [ 82.237644][ T5173] __dump_stack+0x30/0x40 [ 82.238796][ T5173] dump_stack_lvl+0xf8/0x160 [ 82.240030][ T5173] dump_stack+0x1c/0x5c [ 82.241181][ T5173] should_fail+0x3c0/0x51c [ 82.242397][ T5173] __should_failslab+0xbc/0x10c [ 82.243716][ T5173] should_failslab+0x10/0x28 [ 82.244981][ T5173] slab_pre_alloc_hook+0x64/0xec [ 82.246359][ T5173] __kmalloc_node+0xb8/0x520 [ 82.247646][ T5173] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.249093][ T5173] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.250710][ T5173] nbd_start_device+0x14c/0xb40 [ 82.252054][ T5173] nbd_ioctl+0x514/0xc50 [ 82.253189][ T5173] blkdev_ioctl+0x5f8/0xbb8 [ 82.254449][ T5173] block_ioctl+0xa4/0x118 [ 82.255629][ T5173] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.257014][ T5173] invoke_syscall+0x98/0x2b8 [ 82.258299][ T5173] el0_svc_common+0x138/0x258 [ 82.259548][ T5173] do_el0_svc+0x58/0x14c [ 82.260768][ T5173] el0_svc+0x78/0x1e0 [ 82.261844][ T5173] el0t_64_sync_handler+0xcc/0xe4 [ 82.263158][ T5173] el0t_64_sync+0x1a0/0x1a4 [ 82.268887][ T5173] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.294853][ T5179] block nbd3: shutting down sockets [ 82.316993][ T5182] block nbd2: shutting down sockets [ 82.320368][ T5179] FAULT_INJECTION: forcing a failure. [ 82.320368][ T5179] name failslab, interval 1, probability 0, space 0, times 0 [ 82.329635][ T5179] CPU: 1 PID: 5179 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 82.332399][ T5179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.335253][ T5179] Call trace: [ 82.336206][ T5179] dump_backtrace+0x0/0x43c [ 82.337469][ T5179] show_stack+0x2c/0x3c [ 82.338614][ T5179] __dump_stack+0x30/0x40 [ 82.339833][ T5179] dump_stack_lvl+0xf8/0x160 [ 82.341109][ T5179] dump_stack+0x1c/0x5c [ 82.342250][ T5179] should_fail+0x3c0/0x51c [ 82.343505][ T5179] __should_failslab+0xbc/0x10c [ 82.344865][ T5179] should_failslab+0x10/0x28 [ 82.346091][ T5179] slab_pre_alloc_hook+0x64/0xec [ 82.347448][ T5179] __kmalloc_node+0xb8/0x520 [ 82.348724][ T5179] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.350211][ T5179] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.351810][ T5179] nbd_start_device+0x14c/0xb40 [ 82.353181][ T5179] nbd_ioctl+0x514/0xc50 [ 82.354367][ T5179] blkdev_ioctl+0x5f8/0xbb8 [ 82.355590][ T5179] block_ioctl+0xa4/0x118 [ 82.356781][ T5179] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.358133][ T5179] invoke_syscall+0x98/0x2b8 [ 82.359422][ T5179] el0_svc_common+0x138/0x258 [ 82.360729][ T5179] do_el0_svc+0x58/0x14c [ 82.361933][ T5179] el0_svc+0x78/0x1e0 [ 82.363037][ T5179] el0t_64_sync_handler+0xcc/0xe4 [ 82.364404][ T5179] el0t_64_sync+0x1a0/0x1a4 [ 82.371297][ T5179] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.398872][ T5182] FAULT_INJECTION: forcing a failure. [ 82.398872][ T5182] name failslab, interval 1, probability 0, space 0, times 0 [ 82.402798][ T5182] CPU: 1 PID: 5182 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 82.405573][ T5182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.408386][ T5182] Call trace: [ 82.409273][ T5182] dump_backtrace+0x0/0x43c [ 82.410516][ T5182] show_stack+0x2c/0x3c [ 82.411625][ T5182] __dump_stack+0x30/0x40 [ 82.412854][ T5182] dump_stack_lvl+0xf8/0x160 [ 82.414121][ T5182] dump_stack+0x1c/0x5c [ 82.415253][ T5182] should_fail+0x3c0/0x51c [ 82.416484][ T5182] __should_failslab+0xbc/0x10c [ 82.417810][ T5182] should_failslab+0x10/0x28 [ 82.419105][ T5182] slab_pre_alloc_hook+0x64/0xec [ 82.420537][ T5182] __kmalloc_node+0xb8/0x520 [ 82.421840][ T5182] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.423323][ T5182] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.424978][ T5182] nbd_start_device+0x14c/0xb40 [ 82.426403][ T5182] nbd_ioctl+0x514/0xc50 [ 82.427567][ T5182] blkdev_ioctl+0x5f8/0xbb8 [ 82.428802][ T5182] block_ioctl+0xa4/0x118 [ 82.429992][ T5182] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.431327][ T5182] invoke_syscall+0x98/0x2b8 [ 82.432550][ T5182] el0_svc_common+0x138/0x258 [ 82.433820][ T5182] do_el0_svc+0x58/0x14c [ 82.434979][ T5182] el0_svc+0x78/0x1e0 [ 82.436105][ T5182] el0t_64_sync_handler+0xcc/0xe4 [ 82.437481][ T5182] el0t_64_sync+0x1a0/0x1a4 [ 82.445366][ T5184] block nbd0: shutting down sockets [ 82.451648][ T5182] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.458437][ T5184] FAULT_INJECTION: forcing a failure. [ 82.458437][ T5184] name failslab, interval 1, probability 0, space 0, times 0 [ 82.462453][ T5187] block nbd1: shutting down sockets [ 82.469995][ T5184] CPU: 1 PID: 5184 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 82.472664][ T5184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.475424][ T5184] Call trace: [ 82.476266][ T5184] dump_backtrace+0x0/0x43c [ 82.477520][ T5184] show_stack+0x2c/0x3c [ 82.478665][ T5184] __dump_stack+0x30/0x40 [ 82.479876][ T5184] dump_stack_lvl+0xf8/0x160 [ 82.481105][ T5184] dump_stack+0x1c/0x5c [ 82.482218][ T5184] should_fail+0x3c0/0x51c [ 82.483491][ T5184] __should_failslab+0xbc/0x10c [ 82.484806][ T5184] should_failslab+0x10/0x28 [ 82.486038][ T5184] slab_pre_alloc_hook+0x64/0xec [ 82.487411][ T5184] kmem_cache_alloc+0x94/0x3e4 [ 82.488706][ T5184] new_inode_pseudo+0x10c/0x1fc [ 82.490016][ T5184] new_inode+0x38/0x174 [ 82.491146][ T5184] debugfs_create_dir+0xec/0x3f4 [ 82.492505][ T5184] nbd_start_device+0x3c8/0xb40 [ 82.493812][ T5184] nbd_ioctl+0x514/0xc50 [ 82.494971][ T5184] blkdev_ioctl+0x5f8/0xbb8 [ 82.496216][ T5184] block_ioctl+0xa4/0x118 [ 82.497398][ T5184] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.498665][ T5184] invoke_syscall+0x98/0x2b8 [ 82.499951][ T5184] el0_svc_common+0x138/0x258 [ 82.501204][ T5184] do_el0_svc+0x58/0x14c [ 82.502375][ T5184] el0_svc+0x78/0x1e0 [ 82.503450][ T5184] el0t_64_sync_handler+0xcc/0xe4 [ 82.504832][ T5184] el0t_64_sync+0x1a0/0x1a4 [ 82.508727][ T5189] block nbd4: shutting down sockets [ 82.513717][ T5184] debugfs: out of free dentries, can not create directory 'nbd0' [ 82.524190][ T5184] block nbd0: Failed to create debugfs dir for 'nbd0' [ 82.538528][ T5187] FAULT_INJECTION: forcing a failure. [ 82.538528][ T5187] name failslab, interval 1, probability 0, space 0, times 0 [ 82.550423][ T5187] CPU: 1 PID: 5187 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 82.553185][ T5187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.556025][ T5187] Call trace: [ 82.556926][ T5187] dump_backtrace+0x0/0x43c [ 82.558098][ T5187] show_stack+0x2c/0x3c [ 82.559210][ T5187] __dump_stack+0x30/0x40 [ 82.560383][ T5187] dump_stack_lvl+0xf8/0x160 [ 82.561681][ T5187] dump_stack+0x1c/0x5c [ 82.562797][ T5187] should_fail+0x3c0/0x51c [ 82.563974][ T5187] __should_failslab+0xbc/0x10c [ 82.565283][ T5187] should_failslab+0x10/0x28 [ 82.566519][ T5187] slab_pre_alloc_hook+0x64/0xec [ 82.567808][ T5187] __kmalloc_node+0xb8/0x520 [ 82.569096][ T5187] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.570545][ T5187] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.572032][ T5187] nbd_start_device+0x14c/0xb40 [ 82.573317][ T5187] nbd_ioctl+0x514/0xc50 [ 82.574509][ T5187] blkdev_ioctl+0x5f8/0xbb8 [ 82.575710][ T5187] block_ioctl+0xa4/0x118 [ 82.576880][ T5187] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.578194][ T5187] invoke_syscall+0x98/0x2b8 [ 82.579435][ T5187] el0_svc_common+0x138/0x258 [ 82.580708][ T5187] do_el0_svc+0x58/0x14c [ 82.581862][ T5187] el0_svc+0x78/0x1e0 [ 82.582926][ T5187] el0t_64_sync_handler+0xcc/0xe4 [ 82.584257][ T5187] el0t_64_sync+0x1a0/0x1a4 [ 82.594138][ T5189] FAULT_INJECTION: forcing a failure. [ 82.594138][ T5189] name failslab, interval 1, probability 0, space 0, times 0 [ 82.597759][ T5195] block nbd3: shutting down sockets [ 82.602219][ T5187] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.617797][ T5189] CPU: 1 PID: 5189 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 82.620576][ T5189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.623307][ T5189] Call trace: [ 82.624167][ T5189] dump_backtrace+0x0/0x43c [ 82.625409][ T5189] show_stack+0x2c/0x3c [ 82.626532][ T5189] __dump_stack+0x30/0x40 [ 82.627681][ T5189] dump_stack_lvl+0xf8/0x160 [ 82.628895][ T5189] dump_stack+0x1c/0x5c [ 82.630055][ T5189] should_fail+0x3c0/0x51c [ 82.631277][ T5189] __should_failslab+0xbc/0x10c [ 82.632644][ T5189] should_failslab+0x10/0x28 [ 82.633871][ T5189] slab_pre_alloc_hook+0x64/0xec [ 82.635166][ T5189] __kmalloc_node+0xb8/0x520 [ 82.636440][ T5189] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.637914][ T5189] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.639463][ T5189] nbd_start_device+0x14c/0xb40 [ 82.640780][ T5189] nbd_ioctl+0x514/0xc50 [ 82.641891][ T5189] blkdev_ioctl+0x5f8/0xbb8 [ 82.643073][ T5189] block_ioctl+0xa4/0x118 [ 82.644301][ T5189] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.645692][ T5189] invoke_syscall+0x98/0x2b8 [ 82.646913][ T5189] el0_svc_common+0x138/0x258 [ 82.648156][ T5189] do_el0_svc+0x58/0x14c [ 82.649284][ T5189] el0_svc+0x78/0x1e0 [ 82.650325][ T5189] el0t_64_sync_handler+0xcc/0xe4 [ 82.651667][ T5189] el0t_64_sync+0x1a0/0x1a4 [ 82.658058][ T5189] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.670747][ T5194] FAULT_INJECTION: forcing a failure. [ 82.670747][ T5194] name failslab, interval 1, probability 0, space 0, times 0 [ 82.679591][ T5194] CPU: 1 PID: 5194 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 82.682415][ T5194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.683606][ T5203] block nbd2: shutting down sockets [ 82.685206][ T5194] Call trace: [ 82.685213][ T5194] dump_backtrace+0x0/0x43c [ 82.685230][ T5194] show_stack+0x2c/0x3c [ 82.689855][ T5194] __dump_stack+0x30/0x40 [ 82.691033][ T5194] dump_stack_lvl+0xf8/0x160 [ 82.692304][ T5194] dump_stack+0x1c/0x5c [ 82.693473][ T5194] should_fail+0x3c0/0x51c [ 82.694684][ T5194] __should_failslab+0xbc/0x10c [ 82.695999][ T5194] should_failslab+0x10/0x28 [ 82.697250][ T5194] slab_pre_alloc_hook+0x64/0xec [ 82.698636][ T5194] __kmalloc_node+0xb8/0x520 [ 82.699878][ T5194] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 82.701419][ T5194] nbd_start_device+0x14c/0xb40 [ 82.702753][ T5194] nbd_ioctl+0x514/0xc50 [ 82.703902][ T5194] blkdev_ioctl+0x5f8/0xbb8 [ 82.705071][ T5194] block_ioctl+0xa4/0x118 [ 82.706274][ T5194] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.707625][ T5194] invoke_syscall+0x98/0x2b8 [ 82.708944][ T5194] el0_svc_common+0x138/0x258 [ 82.710228][ T5194] do_el0_svc+0x58/0x14c [ 82.711403][ T5194] el0_svc+0x78/0x1e0 [ 82.712489][ T5194] el0t_64_sync_handler+0xcc/0xe4 [ 82.713901][ T5194] el0t_64_sync+0x1a0/0x1a4 [ 82.734887][ T5202] block nbd0: shutting down sockets [ 82.747952][ T5199] FAULT_INJECTION: forcing a failure. [ 82.747952][ T5199] name failslab, interval 1, probability 0, space 0, times 0 [ 82.751725][ T5199] CPU: 0 PID: 5199 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 82.754549][ T5199] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.757312][ T5199] Call trace: [ 82.758148][ T5199] dump_backtrace+0x0/0x43c [ 82.759377][ T5199] show_stack+0x2c/0x3c [ 82.760593][ T5199] __dump_stack+0x30/0x40 [ 82.761758][ T5199] dump_stack_lvl+0xf8/0x160 [ 82.762989][ T5199] dump_stack+0x1c/0x5c [ 82.764117][ T5199] should_fail+0x3c0/0x51c [ 82.765287][ T5199] __should_failslab+0xbc/0x10c [ 82.766617][ T5199] should_failslab+0x10/0x28 [ 82.767832][ T5199] slab_pre_alloc_hook+0x64/0xec [ 82.769133][ T5199] kmem_cache_alloc+0x94/0x3e4 [ 82.770393][ T5199] __d_alloc+0x3c/0x65c [ 82.771560][ T5199] d_alloc_parallel+0x80/0x1104 [ 82.772929][ T5199] __lookup_slow+0x104/0x380 [ 82.774123][ T5199] lookup_one_len+0x178/0x28c [ 82.775380][ T5199] start_creating+0x19c/0x2e0 [ 82.776651][ T5199] debugfs_create_dir+0x30/0x3f4 [ 82.777959][ T5199] nbd_start_device+0x3c8/0xb40 [ 82.779341][ T5199] nbd_ioctl+0x514/0xc50 [ 82.780573][ T5199] blkdev_ioctl+0x5f8/0xbb8 [ 82.781753][ T5199] block_ioctl+0xa4/0x118 [ 82.782965][ T5199] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.784354][ T5199] invoke_syscall+0x98/0x2b8 [ 82.785590][ T5199] el0_svc_common+0x138/0x258 [ 82.786886][ T5199] do_el0_svc+0x58/0x14c [ 82.788085][ T5199] el0_svc+0x78/0x1e0 [ 82.789140][ T5199] el0t_64_sync_handler+0xcc/0xe4 [ 82.790481][ T5199] el0t_64_sync+0x1a0/0x1a4 [ 82.799475][ T5197] FAULT_INJECTION: forcing a failure. [ 82.799475][ T5197] name failslab, interval 1, probability 0, space 0, times 0 [ 82.802498][ T5199] block nbd0: Failed to create debugfs dir for 'nbd0' [ 82.807341][ T5197] CPU: 1 PID: 5197 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 82.810126][ T5197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.812877][ T5197] Call trace: [ 82.813749][ T5197] dump_backtrace+0x0/0x43c [ 82.814964][ T5197] show_stack+0x2c/0x3c [ 82.816093][ T5197] __dump_stack+0x30/0x40 [ 82.817279][ T5197] dump_stack_lvl+0xf8/0x160 [ 82.818501][ T5197] dump_stack+0x1c/0x5c [ 82.819598][ T5197] should_fail+0x3c0/0x51c [ 82.820807][ T5197] __should_failslab+0xbc/0x10c [ 82.822126][ T5197] should_failslab+0x10/0x28 [ 82.823389][ T5197] slab_pre_alloc_hook+0x64/0xec [ 82.823719][ T5206] block nbd1: shutting down sockets [ 82.824772][ T5197] __kmalloc_node+0xb8/0x520 [ 82.824787][ T5197] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.828962][ T5197] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.830572][ T5197] nbd_start_device+0x14c/0xb40 [ 82.831904][ T5197] nbd_ioctl+0x514/0xc50 [ 82.833036][ T5197] blkdev_ioctl+0x5f8/0xbb8 [ 82.834274][ T5197] block_ioctl+0xa4/0x118 [ 82.835448][ T5197] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.836766][ T5197] invoke_syscall+0x98/0x2b8 [ 82.838056][ T5197] el0_svc_common+0x138/0x258 [ 82.839375][ T5197] do_el0_svc+0x58/0x14c [ 82.840552][ T5197] el0_svc+0x78/0x1e0 [ 82.841602][ T5197] el0t_64_sync_handler+0xcc/0xe4 [ 82.842990][ T5197] el0t_64_sync+0x1a0/0x1a4 [ 82.854467][ T5197] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.857546][ T5205] block nbd4: shutting down sockets [ 82.871300][ T5201] FAULT_INJECTION: forcing a failure. [ 82.871300][ T5201] name failslab, interval 1, probability 0, space 0, times 0 [ 82.877918][ T5201] CPU: 1 PID: 5201 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 82.880637][ T5201] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.883423][ T5201] Call trace: [ 82.884325][ T5201] dump_backtrace+0x0/0x43c [ 82.885511][ T5201] show_stack+0x2c/0x3c [ 82.886652][ T5201] __dump_stack+0x30/0x40 [ 82.887773][ T5201] dump_stack_lvl+0xf8/0x160 [ 82.889021][ T5201] dump_stack+0x1c/0x5c [ 82.890181][ T5201] should_fail+0x3c0/0x51c [ 82.891365][ T5201] __should_failslab+0xbc/0x10c [ 82.892645][ T5201] should_failslab+0x10/0x28 [ 82.893895][ T5201] slab_pre_alloc_hook+0x64/0xec [ 82.895192][ T5201] __kmalloc_node+0xb8/0x520 [ 82.896481][ T5201] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.897950][ T5201] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.899522][ T5201] nbd_start_device+0x14c/0xb40 [ 82.900831][ T5201] nbd_ioctl+0x514/0xc50 [ 82.902029][ T5201] blkdev_ioctl+0x5f8/0xbb8 [ 82.903286][ T5201] block_ioctl+0xa4/0x118 [ 82.904429][ T5201] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.905799][ T5201] invoke_syscall+0x98/0x2b8 [ 82.907081][ T5201] el0_svc_common+0x138/0x258 [ 82.908353][ T5201] do_el0_svc+0x58/0x14c [ 82.909481][ T5201] el0_svc+0x78/0x1e0 [ 82.910568][ T5201] el0t_64_sync_handler+0xcc/0xe4 [ 82.911963][ T5201] el0t_64_sync+0x1a0/0x1a4 [ 82.930118][ T5201] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.935401][ T5210] block nbd3: shutting down sockets [ 82.943692][ T5205] FAULT_INJECTION: forcing a failure. [ 82.943692][ T5205] name failslab, interval 1, probability 0, space 0, times 0 [ 82.948082][ T5205] CPU: 1 PID: 5205 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 82.950950][ T5205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 82.953690][ T5205] Call trace: [ 82.954592][ T5205] dump_backtrace+0x0/0x43c [ 82.955818][ T5205] show_stack+0x2c/0x3c [ 82.956955][ T5205] __dump_stack+0x30/0x40 [ 82.958136][ T5205] dump_stack_lvl+0xf8/0x160 [ 82.959499][ T5205] dump_stack+0x1c/0x5c [ 82.960605][ T5205] should_fail+0x3c0/0x51c [ 82.961790][ T5205] __should_failslab+0xbc/0x10c [ 82.963127][ T5205] should_failslab+0x10/0x28 [ 82.964432][ T5205] slab_pre_alloc_hook+0x64/0xec [ 82.965702][ T5205] __kmalloc_node+0xb8/0x520 [ 82.966912][ T5205] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.968368][ T5205] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.969884][ T5205] nbd_start_device+0x14c/0xb40 [ 82.971252][ T5205] nbd_ioctl+0x514/0xc50 [ 82.972396][ T5205] blkdev_ioctl+0x5f8/0xbb8 [ 82.973600][ T5205] block_ioctl+0xa4/0x118 [ 82.974774][ T5205] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.976106][ T5205] invoke_syscall+0x98/0x2b8 [ 82.977370][ T5205] el0_svc_common+0x138/0x258 [ 82.978673][ T5205] do_el0_svc+0x58/0x14c [ 82.979830][ T5205] el0_svc+0x78/0x1e0 [ 82.980889][ T5205] el0t_64_sync_handler+0xcc/0xe4 [ 82.982310][ T5205] el0t_64_sync+0x1a0/0x1a4 [ 82.986614][ T5205] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.999643][ T5212] block nbd0: shutting down sockets [ 83.002562][ T5212] FAULT_INJECTION: forcing a failure. [ 83.002562][ T5212] name failslab, interval 1, probability 0, space 0, times 0 [ 83.008025][ T5212] CPU: 1 PID: 5212 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 83.010898][ T5212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.013706][ T5212] Call trace: [ 83.014596][ T5212] dump_backtrace+0x0/0x43c [ 83.015818][ T5212] show_stack+0x2c/0x3c [ 83.016901][ T5212] __dump_stack+0x30/0x40 [ 83.018175][ T5212] dump_stack_lvl+0xf8/0x160 [ 83.019419][ T5212] dump_stack+0x1c/0x5c [ 83.020584][ T5212] should_fail+0x3c0/0x51c [ 83.021748][ T5212] __should_failslab+0xbc/0x10c [ 83.023110][ T5212] should_failslab+0x10/0x28 [ 83.024381][ T5212] slab_pre_alloc_hook+0x64/0xec [ 83.025724][ T5212] kmem_cache_alloc+0x94/0x3e4 [ 83.027064][ T5212] __d_alloc+0x3c/0x65c [ 83.028257][ T5212] d_alloc_parallel+0x80/0x1104 [ 83.029629][ T5212] __lookup_slow+0x104/0x380 [ 83.030955][ T5212] lookup_one_len+0x178/0x28c [ 83.032263][ T5212] start_creating+0x19c/0x2e0 [ 83.033520][ T5212] debugfs_create_dir+0x30/0x3f4 [ 83.034945][ T5212] nbd_start_device+0x3c8/0xb40 [ 83.036307][ T5212] nbd_ioctl+0x514/0xc50 [ 83.037467][ T5212] blkdev_ioctl+0x5f8/0xbb8 [ 83.038698][ T5212] block_ioctl+0xa4/0x118 [ 83.039857][ T5212] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.041190][ T5212] invoke_syscall+0x98/0x2b8 [ 83.042494][ T5212] el0_svc_common+0x138/0x258 [ 83.043760][ T5212] do_el0_svc+0x58/0x14c [ 83.044971][ T5212] el0_svc+0x78/0x1e0 [ 83.046063][ T5212] el0t_64_sync_handler+0xcc/0xe4 [ 83.047437][ T5212] el0t_64_sync+0x1a0/0x1a4 [ 83.065364][ T5208] FAULT_INJECTION: forcing a failure. [ 83.065364][ T5208] name failslab, interval 1, probability 0, space 0, times 0 [ 83.066735][ T5212] block nbd0: Failed to create debugfs dir for 'nbd0' [ 83.071458][ T5208] CPU: 1 PID: 5208 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 83.073517][ T5216] block nbd2: shutting down sockets [ 83.074161][ T5208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.078321][ T5208] Call trace: [ 83.079259][ T5208] dump_backtrace+0x0/0x43c [ 83.080523][ T5208] show_stack+0x2c/0x3c [ 83.081642][ T5208] __dump_stack+0x30/0x40 [ 83.082830][ T5208] dump_stack_lvl+0xf8/0x160 [ 83.084107][ T5208] dump_stack+0x1c/0x5c [ 83.085250][ T5208] should_fail+0x3c0/0x51c [ 83.086460][ T5208] __should_failslab+0xbc/0x10c [ 83.087751][ T5208] should_failslab+0x10/0x28 [ 83.089034][ T5208] slab_pre_alloc_hook+0x64/0xec [ 83.090406][ T5208] __kmalloc_node+0xb8/0x520 [ 83.091633][ T5208] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.093096][ T5208] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.094775][ T5208] nbd_start_device+0x14c/0xb40 [ 83.096097][ T5208] nbd_ioctl+0x514/0xc50 [ 83.097362][ T5208] blkdev_ioctl+0x5f8/0xbb8 [ 83.098603][ T5208] block_ioctl+0xa4/0x118 [ 83.099790][ T5208] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.101130][ T5208] invoke_syscall+0x98/0x2b8 [ 83.102338][ T5208] el0_svc_common+0x138/0x258 [ 83.103628][ T5208] do_el0_svc+0x58/0x14c [ 83.104779][ T5208] el0_svc+0x78/0x1e0 [ 83.105878][ T5208] el0t_64_sync_handler+0xcc/0xe4 [ 83.107246][ T5208] el0t_64_sync+0x1a0/0x1a4 [ 83.128086][ T5208] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.138974][ T5214] FAULT_INJECTION: forcing a failure. [ 83.138974][ T5214] name failslab, interval 1, probability 0, space 0, times 0 [ 83.146805][ T5214] CPU: 0 PID: 5214 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 83.149458][ T5214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.152156][ T5214] Call trace: [ 83.153071][ T5214] dump_backtrace+0x0/0x43c [ 83.154328][ T5214] show_stack+0x2c/0x3c [ 83.155485][ T5214] __dump_stack+0x30/0x40 [ 83.156648][ T5214] dump_stack_lvl+0xf8/0x160 [ 83.157883][ T5214] dump_stack+0x1c/0x5c [ 83.158978][ T5214] should_fail+0x3c0/0x51c [ 83.160131][ T5214] __should_failslab+0xbc/0x10c [ 83.161427][ T5214] should_failslab+0x10/0x28 [ 83.162639][ T5214] slab_pre_alloc_hook+0x64/0xec [ 83.163971][ T5214] __kmalloc_node+0xb8/0x520 [ 83.165223][ T5214] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.166723][ T5214] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.168260][ T5214] nbd_start_device+0x14c/0xb40 [ 83.169555][ T5214] nbd_ioctl+0x514/0xc50 [ 83.170712][ T5214] blkdev_ioctl+0x5f8/0xbb8 [ 83.171962][ T5214] block_ioctl+0xa4/0x118 [ 83.173139][ T5214] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.174505][ T5214] invoke_syscall+0x98/0x2b8 [ 83.175771][ T5214] el0_svc_common+0x138/0x258 [ 83.177110][ T5214] do_el0_svc+0x58/0x14c [ 83.178310][ T5214] el0_svc+0x78/0x1e0 [ 83.179374][ T5214] el0t_64_sync_handler+0xcc/0xe4 [ 83.180740][ T5214] el0t_64_sync+0x1a0/0x1a4 [ 83.185714][ T5220] block nbd1: shutting down sockets [ 83.197529][ T5214] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.203590][ T5221] block nbd4: shutting down sockets [ 83.228458][ T5220] FAULT_INJECTION: forcing a failure. [ 83.228458][ T5220] name failslab, interval 1, probability 0, space 0, times 0 [ 83.232159][ T5220] CPU: 0 PID: 5220 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 83.234941][ T5220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.237691][ T5220] Call trace: [ 83.238577][ T5220] dump_backtrace+0x0/0x43c [ 83.239868][ T5220] show_stack+0x2c/0x3c [ 83.241027][ T5220] __dump_stack+0x30/0x40 [ 83.242223][ T5220] dump_stack_lvl+0xf8/0x160 [ 83.243455][ T5220] dump_stack+0x1c/0x5c [ 83.244545][ T5220] should_fail+0x3c0/0x51c [ 83.245694][ T5220] __should_failslab+0xbc/0x10c [ 83.246963][ T5220] should_failslab+0x10/0x28 [ 83.248215][ T5220] slab_pre_alloc_hook+0x64/0xec [ 83.249582][ T5220] __kmalloc_node+0xb8/0x520 [ 83.250858][ T5220] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.252390][ T5220] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.253983][ T5220] nbd_start_device+0x14c/0xb40 [ 83.255335][ T5220] nbd_ioctl+0x514/0xc50 [ 83.256450][ T5220] blkdev_ioctl+0x5f8/0xbb8 [ 83.257724][ T5220] block_ioctl+0xa4/0x118 [ 83.258875][ T5220] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.260198][ T5220] invoke_syscall+0x98/0x2b8 [ 83.261490][ T5220] el0_svc_common+0x138/0x258 [ 83.262787][ T5220] do_el0_svc+0x58/0x14c [ 83.263936][ T5220] el0_svc+0x78/0x1e0 [ 83.265051][ T5220] el0t_64_sync_handler+0xcc/0xe4 [ 83.266451][ T5220] el0t_64_sync+0x1a0/0x1a4 [ 83.278966][ T5219] FAULT_INJECTION: forcing a failure. [ 83.278966][ T5219] name failslab, interval 1, probability 0, space 0, times 0 [ 83.286052][ T5219] CPU: 1 PID: 5219 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 83.288979][ T5219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.290640][ T5220] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.291741][ T5219] Call trace: [ 83.291748][ T5219] dump_backtrace+0x0/0x43c [ 83.291763][ T5219] show_stack+0x2c/0x3c [ 83.291774][ T5219] __dump_stack+0x30/0x40 [ 83.297888][ T5219] dump_stack_lvl+0xf8/0x160 [ 83.299254][ T5219] dump_stack+0x1c/0x5c [ 83.300481][ T5219] should_fail+0x3c0/0x51c [ 83.301620][ T5219] __should_failslab+0xbc/0x10c [ 83.302953][ T5219] should_failslab+0x10/0x28 [ 83.304205][ T5219] slab_pre_alloc_hook+0x64/0xec [ 83.305597][ T5219] __kmalloc_node+0xb8/0x520 [ 83.306850][ T5219] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.308325][ T5219] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.309924][ T5219] nbd_start_device+0x14c/0xb40 [ 83.311285][ T5219] nbd_ioctl+0x514/0xc50 [ 83.312447][ T5219] blkdev_ioctl+0x5f8/0xbb8 [ 83.313657][ T5219] block_ioctl+0xa4/0x118 [ 83.314836][ T5219] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.316191][ T5219] invoke_syscall+0x98/0x2b8 [ 83.317394][ T5219] el0_svc_common+0x138/0x258 [ 83.318609][ T5219] do_el0_svc+0x58/0x14c [ 83.319747][ T5219] el0_svc+0x78/0x1e0 [ 83.320784][ T5219] el0t_64_sync_handler+0xcc/0xe4 [ 83.322120][ T5219] el0t_64_sync+0x1a0/0x1a4 [ 83.326448][ T5224] block nbd0: shutting down sockets [ 83.344097][ T5224] FAULT_INJECTION: forcing a failure. [ 83.344097][ T5224] name failslab, interval 1, probability 0, space 0, times 0 [ 83.351167][ T5224] CPU: 1 PID: 5224 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 83.353705][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.356342][ T5224] Call trace: [ 83.357154][ T5224] dump_backtrace+0x0/0x43c [ 83.357780][ T5219] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.358368][ T5224] show_stack+0x2c/0x3c [ 83.358385][ T5224] __dump_stack+0x30/0x40 [ 83.358395][ T5224] dump_stack_lvl+0xf8/0x160 [ 83.358403][ T5224] dump_stack+0x1c/0x5c [ 83.364695][ T5224] should_fail+0x3c0/0x51c [ 83.365861][ T5224] __should_failslab+0xbc/0x10c [ 83.367120][ T5224] should_failslab+0x10/0x28 [ 83.368334][ T5224] slab_pre_alloc_hook+0x64/0xec [ 83.369650][ T5224] kmem_cache_alloc+0x94/0x3e4 [ 83.370917][ T5224] new_inode_pseudo+0x10c/0x1fc [ 83.372195][ T5224] new_inode+0x38/0x174 [ 83.373269][ T5224] debugfs_create_dir+0xec/0x3f4 [ 83.374553][ T5224] nbd_start_device+0x3c8/0xb40 [ 83.375986][ T5224] nbd_ioctl+0x514/0xc50 [ 83.377059][ T5224] blkdev_ioctl+0x5f8/0xbb8 [ 83.378215][ T5224] block_ioctl+0xa4/0x118 [ 83.379361][ T5224] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.380754][ T5224] invoke_syscall+0x98/0x2b8 [ 83.381987][ T5224] el0_svc_common+0x138/0x258 [ 83.383271][ T5224] do_el0_svc+0x58/0x14c [ 83.384499][ T5224] el0_svc+0x78/0x1e0 [ 83.385594][ T5224] el0t_64_sync_handler+0xcc/0xe4 [ 83.387001][ T5224] el0t_64_sync+0x1a0/0x1a4 [ 83.390355][ T5224] debugfs: out of free dentries, can not create directory 'nbd0' [ 83.392807][ T5224] block nbd0: Failed to create debugfs dir for 'nbd0' [ 83.396053][ T5233] block nbd2: shutting down sockets [ 83.424137][ T5230] block nbd3: shutting down sockets [ 83.448019][ T5228] FAULT_INJECTION: forcing a failure. [ 83.448019][ T5228] name failslab, interval 1, probability 0, space 0, times 0 [ 83.451829][ T5228] CPU: 1 PID: 5228 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 83.454592][ T5228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.457337][ T5228] Call trace: [ 83.458201][ T5228] dump_backtrace+0x0/0x43c [ 83.459442][ T5228] show_stack+0x2c/0x3c [ 83.460526][ T5228] __dump_stack+0x30/0x40 [ 83.461747][ T5228] dump_stack_lvl+0xf8/0x160 [ 83.463004][ T5228] dump_stack+0x1c/0x5c [ 83.464144][ T5228] should_fail+0x3c0/0x51c [ 83.465435][ T5228] __should_failslab+0xbc/0x10c [ 83.466746][ T5228] should_failslab+0x10/0x28 [ 83.468043][ T5228] slab_pre_alloc_hook+0x64/0xec [ 83.469387][ T5228] __kmalloc_node+0xb8/0x520 [ 83.470761][ T5228] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.472259][ T5228] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.473918][ T5228] nbd_start_device+0x14c/0xb40 [ 83.475169][ T5228] nbd_ioctl+0x514/0xc50 [ 83.476336][ T5228] blkdev_ioctl+0x5f8/0xbb8 [ 83.477569][ T5228] block_ioctl+0xa4/0x118 [ 83.478771][ T5228] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.480248][ T5228] invoke_syscall+0x98/0x2b8 [ 83.481557][ T5228] el0_svc_common+0x138/0x258 [ 83.482890][ T5228] do_el0_svc+0x58/0x14c [ 83.484011][ T5228] el0_svc+0x78/0x1e0 [ 83.485084][ T5228] el0t_64_sync_handler+0xcc/0xe4 [ 83.486446][ T5228] el0t_64_sync+0x1a0/0x1a4 [ 83.491890][ T5228] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.494178][ T5234] block nbd1: shutting down sockets [ 83.497370][ T5229] FAULT_INJECTION: forcing a failure. [ 83.497370][ T5229] name failslab, interval 1, probability 0, space 0, times 0 [ 83.500719][ T5229] CPU: 0 PID: 5229 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 83.503294][ T5229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.506038][ T5229] Call trace: [ 83.506932][ T5229] dump_backtrace+0x0/0x43c [ 83.508207][ T5229] show_stack+0x2c/0x3c [ 83.509335][ T5229] __dump_stack+0x30/0x40 [ 83.510495][ T5229] dump_stack_lvl+0xf8/0x160 [ 83.511793][ T5229] dump_stack+0x1c/0x5c [ 83.512925][ T5229] should_fail+0x3c0/0x51c [ 83.514136][ T5229] __should_failslab+0xbc/0x10c [ 83.515486][ T5229] should_failslab+0x10/0x28 [ 83.516784][ T5229] slab_pre_alloc_hook+0x64/0xec [ 83.518136][ T5229] __kmalloc_node+0xb8/0x520 [ 83.519438][ T5229] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.520914][ T5229] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.522478][ T5229] nbd_start_device+0x14c/0xb40 [ 83.523799][ T5229] nbd_ioctl+0x514/0xc50 [ 83.524965][ T5229] blkdev_ioctl+0x5f8/0xbb8 [ 83.526162][ T5229] block_ioctl+0xa4/0x118 [ 83.527378][ T5229] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.528794][ T5229] invoke_syscall+0x98/0x2b8 [ 83.530046][ T5229] el0_svc_common+0x138/0x258 [ 83.531302][ T5229] do_el0_svc+0x58/0x14c [ 83.532475][ T5229] el0_svc+0x78/0x1e0 [ 83.533585][ T5229] el0t_64_sync_handler+0xcc/0xe4 [ 83.534957][ T5229] el0t_64_sync+0x1a0/0x1a4 [ 83.542547][ T5229] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.573367][ T5232] FAULT_INJECTION: forcing a failure. [ 83.573367][ T5232] name failslab, interval 1, probability 0, space 0, times 0 [ 83.576922][ T5232] CPU: 0 PID: 5232 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 83.579767][ T5232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.582491][ T5232] Call trace: [ 83.583395][ T5232] dump_backtrace+0x0/0x43c [ 83.584689][ T5232] show_stack+0x2c/0x3c [ 83.585243][ T5238] block nbd4: shutting down sockets [ 83.585797][ T5232] __dump_stack+0x30/0x40 [ 83.588476][ T5232] dump_stack_lvl+0xf8/0x160 [ 83.589701][ T5232] dump_stack+0x1c/0x5c [ 83.590902][ T5232] should_fail+0x3c0/0x51c [ 83.592058][ T5232] __should_failslab+0xbc/0x10c [ 83.593352][ T5232] should_failslab+0x10/0x28 [ 83.594573][ T5232] slab_pre_alloc_hook+0x64/0xec [ 83.595901][ T5232] __kmalloc_node+0xb8/0x520 [ 83.597211][ T5232] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.598694][ T5232] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.600075][ T5232] nbd_start_device+0x14c/0xb40 [ 83.601442][ T5232] nbd_ioctl+0x514/0xc50 [ 83.602651][ T5232] blkdev_ioctl+0x5f8/0xbb8 [ 83.603906][ T5232] block_ioctl+0xa4/0x118 [ 83.605082][ T5232] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.606466][ T5232] invoke_syscall+0x98/0x2b8 [ 83.607700][ T5232] el0_svc_common+0x138/0x258 [ 83.608987][ T5232] do_el0_svc+0x58/0x14c [ 83.610195][ T5232] el0_svc+0x78/0x1e0 [ 83.611307][ T5232] el0t_64_sync_handler+0xcc/0xe4 [ 83.612730][ T5232] el0t_64_sync+0x1a0/0x1a4 [ 83.633551][ T5239] block nbd0: shutting down sockets [ 83.633615][ T5232] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.641209][ T5236] FAULT_INJECTION: forcing a failure. [ 83.641209][ T5236] name failslab, interval 1, probability 0, space 0, times 0 [ 83.649707][ T5238] FAULT_INJECTION: forcing a failure. [ 83.649707][ T5238] name failslab, interval 1, probability 0, space 0, times 0 [ 83.650040][ T5236] CPU: 0 PID: 5236 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 83.656069][ T5236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.658838][ T5236] Call trace: [ 83.659727][ T5236] dump_backtrace+0x0/0x43c [ 83.660990][ T5236] show_stack+0x2c/0x3c [ 83.662275][ T5236] __dump_stack+0x30/0x40 [ 83.663436][ T5236] dump_stack_lvl+0xf8/0x160 [ 83.664626][ T5236] dump_stack+0x1c/0x5c [ 83.665907][ T5236] should_fail+0x3c0/0x51c [ 83.667116][ T5236] __should_failslab+0xbc/0x10c [ 83.668447][ T5236] should_failslab+0x10/0x28 [ 83.669808][ T5236] slab_pre_alloc_hook+0x64/0xec [ 83.671199][ T5236] kmem_cache_alloc+0x94/0x3e4 [ 83.672474][ T5236] new_inode_pseudo+0x10c/0x1fc [ 83.673806][ T5236] new_inode+0x38/0x174 [ 83.674923][ T5236] debugfs_create_dir+0xec/0x3f4 [ 83.676216][ T5236] nbd_start_device+0x3c8/0xb40 [ 83.677625][ T5236] nbd_ioctl+0x514/0xc50 [ 83.678742][ T5236] blkdev_ioctl+0x5f8/0xbb8 [ 83.679953][ T5236] block_ioctl+0xa4/0x118 [ 83.681155][ T5236] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.682532][ T5236] invoke_syscall+0x98/0x2b8 [ 83.683798][ T5236] el0_svc_common+0x138/0x258 [ 83.685063][ T5236] do_el0_svc+0x58/0x14c [ 83.686205][ T5236] el0_svc+0x78/0x1e0 [ 83.687284][ T5236] el0t_64_sync_handler+0xcc/0xe4 [ 83.688634][ T5236] el0t_64_sync+0x1a0/0x1a4 [ 83.692163][ T5238] CPU: 0 PID: 5238 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 83.694996][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.697885][ T5238] Call trace: [ 83.698781][ T5238] dump_backtrace+0x0/0x43c [ 83.700032][ T5238] show_stack+0x2c/0x3c [ 83.701144][ T5238] __dump_stack+0x30/0x40 [ 83.702357][ T5238] dump_stack_lvl+0xf8/0x160 [ 83.703657][ T5238] dump_stack+0x1c/0x5c [ 83.704770][ T5238] should_fail+0x3c0/0x51c [ 83.705971][ T5238] __should_failslab+0xbc/0x10c [ 83.707288][ T5238] should_failslab+0x10/0x28 [ 83.708536][ T5238] slab_pre_alloc_hook+0x64/0xec [ 83.709921][ T5238] __kmalloc_node+0xb8/0x520 [ 83.711221][ T5238] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.712700][ T5238] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.714306][ T5238] nbd_start_device+0x14c/0xb40 [ 83.715626][ T5238] nbd_ioctl+0x514/0xc50 [ 83.716845][ T5238] blkdev_ioctl+0x5f8/0xbb8 [ 83.718105][ T5238] block_ioctl+0xa4/0x118 [ 83.719317][ T5238] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.720769][ T5238] invoke_syscall+0x98/0x2b8 [ 83.722009][ T5238] el0_svc_common+0x138/0x258 [ 83.723288][ T5238] do_el0_svc+0x58/0x14c [ 83.724525][ T5238] el0_svc+0x78/0x1e0 [ 83.725597][ T5238] el0t_64_sync_handler+0xcc/0xe4 [ 83.726934][ T5238] el0t_64_sync+0x1a0/0x1a4 [ 83.741533][ T5238] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.750618][ T5236] debugfs: out of free dentries, can not create directory 'nbd0' [ 83.753002][ T5236] block nbd0: Failed to create debugfs dir for 'nbd0' [ 83.783363][ T5247] block nbd2: Device being setup by another task [ 83.783785][ T5243] block nbd3: shutting down sockets [ 83.785743][ T5242] block nbd2: shutting down sockets [ 83.791512][ T5242] FAULT_INJECTION: forcing a failure. [ 83.791512][ T5242] name failslab, interval 1, probability 0, space 0, times 0 [ 83.804678][ T5242] CPU: 1 PID: 5242 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 83.807358][ T5242] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.810100][ T5242] Call trace: [ 83.811004][ T5242] dump_backtrace+0x0/0x43c [ 83.812220][ T5242] show_stack+0x2c/0x3c [ 83.813315][ T5242] __dump_stack+0x30/0x40 [ 83.814535][ T5242] dump_stack_lvl+0xf8/0x160 [ 83.815799][ T5242] dump_stack+0x1c/0x5c [ 83.816894][ T5242] should_fail+0x3c0/0x51c [ 83.818076][ T5242] __should_failslab+0xbc/0x10c [ 83.819381][ T5242] should_failslab+0x10/0x28 [ 83.820601][ T5242] slab_pre_alloc_hook+0x64/0xec [ 83.821891][ T5242] kmem_cache_alloc+0x94/0x3e4 [ 83.823211][ T5242] new_inode_pseudo+0x10c/0x1fc [ 83.824584][ T5242] new_inode+0x38/0x174 [ 83.825693][ T5242] debugfs_create_dir+0xec/0x3f4 [ 83.826971][ T5242] nbd_start_device+0x3c8/0xb40 [ 83.828281][ T5242] nbd_ioctl+0x514/0xc50 [ 83.829464][ T5242] blkdev_ioctl+0x5f8/0xbb8 [ 83.830741][ T5242] block_ioctl+0xa4/0x118 [ 83.831964][ T5242] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.833325][ T5242] invoke_syscall+0x98/0x2b8 [ 83.834584][ T5242] el0_svc_common+0x138/0x258 [ 83.835938][ T5242] do_el0_svc+0x58/0x14c [ 83.837113][ T5242] el0_svc+0x78/0x1e0 [ 83.838208][ T5242] el0t_64_sync_handler+0xcc/0xe4 [ 83.839602][ T5242] el0t_64_sync+0x1a0/0x1a4 [ 83.847548][ T5243] FAULT_INJECTION: forcing a failure. [ 83.847548][ T5243] name failslab, interval 1, probability 0, space 0, times 0 [ 83.851104][ T5243] CPU: 0 PID: 5243 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 83.853824][ T5243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.856523][ T5243] Call trace: [ 83.857434][ T5243] dump_backtrace+0x0/0x43c [ 83.858166][ T5242] debugfs: out of free dentries, can not create directory 'nbd2' [ 83.858635][ T5243] show_stack+0x2c/0x3c [ 83.858650][ T5243] __dump_stack+0x30/0x40 [ 83.858660][ T5243] dump_stack_lvl+0xf8/0x160 [ 83.858669][ T5243] dump_stack+0x1c/0x5c [ 83.861095][ T5242] block nbd2: Failed to create debugfs dir for 'nbd2' [ 83.861917][ T5243] should_fail+0x3c0/0x51c [ 83.861933][ T5243] __should_failslab+0xbc/0x10c [ 83.861942][ T5243] should_failslab+0x10/0x28 [ 83.870942][ T5243] slab_pre_alloc_hook+0x64/0xec [ 83.872347][ T5243] __kmalloc_node+0xb8/0x520 [ 83.873578][ T5243] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 83.875159][ T5243] nbd_start_device+0x14c/0xb40 [ 83.876471][ T5243] nbd_ioctl+0x514/0xc50 [ 83.877660][ T5243] blkdev_ioctl+0x5f8/0xbb8 [ 83.878878][ T5243] block_ioctl+0xa4/0x118 [ 83.880059][ T5243] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.881465][ T5243] invoke_syscall+0x98/0x2b8 [ 83.882743][ T5243] el0_svc_common+0x138/0x258 [ 83.884007][ T5243] do_el0_svc+0x58/0x14c [ 83.885185][ T5243] el0_svc+0x78/0x1e0 [ 83.886310][ T5243] el0t_64_sync_handler+0xcc/0xe4 [ 83.887650][ T5243] el0t_64_sync+0x1a0/0x1a4 [ 83.934519][ T5255] block nbd4: Device being setup by another task [ 83.936923][ T5250] block nbd4: shutting down sockets [ 83.937393][ T5253] block nbd0: shutting down sockets [ 83.944115][ T5253] FAULT_INJECTION: forcing a failure. [ 83.944115][ T5253] name failslab, interval 1, probability 0, space 0, times 0 [ 83.944411][ T5251] block nbd1: shutting down sockets [ 83.950086][ T5253] CPU: 1 PID: 5253 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 83.952917][ T5253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 83.955640][ T5253] Call trace: [ 83.956496][ T5253] dump_backtrace+0x0/0x43c [ 83.957717][ T5253] show_stack+0x2c/0x3c [ 83.958939][ T5253] __dump_stack+0x30/0x40 [ 83.960128][ T5253] dump_stack_lvl+0xf8/0x160 [ 83.961358][ T5253] dump_stack+0x1c/0x5c [ 83.962537][ T5253] should_fail+0x3c0/0x51c [ 83.963810][ T5253] __should_failslab+0xbc/0x10c [ 83.965159][ T5253] should_failslab+0x10/0x28 [ 83.966430][ T5253] slab_pre_alloc_hook+0x64/0xec [ 83.967837][ T5253] kmem_cache_alloc+0x94/0x3e4 [ 83.969121][ T5253] new_inode_pseudo+0x10c/0x1fc [ 83.970440][ T5253] new_inode+0x38/0x174 [ 83.971574][ T5253] debugfs_create_dir+0xec/0x3f4 [ 83.972984][ T5253] nbd_start_device+0x3c8/0xb40 [ 83.974371][ T5253] nbd_ioctl+0x514/0xc50 [ 83.975518][ T5253] blkdev_ioctl+0x5f8/0xbb8 [ 83.976758][ T5253] block_ioctl+0xa4/0x118 [ 83.977909][ T5253] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.979256][ T5253] invoke_syscall+0x98/0x2b8 [ 83.980549][ T5253] el0_svc_common+0x138/0x258 [ 83.981847][ T5253] do_el0_svc+0x58/0x14c [ 83.983058][ T5253] el0_svc+0x78/0x1e0 [ 83.984155][ T5253] el0t_64_sync_handler+0xcc/0xe4 [ 83.985501][ T5253] el0t_64_sync+0x1a0/0x1a4 [ 83.991690][ T5253] debugfs: out of free dentries, can not create directory 'nbd0' [ 83.996341][ T5250] FAULT_INJECTION: forcing a failure. [ 83.996341][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 84.000070][ T5250] CPU: 1 PID: 5250 Comm: syz-executor.4 Tainted: G W 5.15.181-syzkaller #0 [ 84.002956][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 84.005757][ T5250] Call trace: [ 84.006579][ T5250] dump_backtrace+0x0/0x43c [ 84.007773][ T5250] show_stack+0x2c/0x3c [ 84.008883][ T5250] __dump_stack+0x30/0x40 [ 84.010070][ T5250] dump_stack_lvl+0xf8/0x160 [ 84.011330][ T5250] dump_stack+0x1c/0x5c [ 84.012419][ T5250] should_fail+0x3c0/0x51c [ 84.013613][ T5250] __should_failslab+0xbc/0x10c [ 84.014938][ T5250] should_failslab+0x10/0x28 [ 84.016291][ T5250] slab_pre_alloc_hook+0x64/0xec [ 84.017658][ T5250] kmem_cache_alloc+0x94/0x3e4 [ 84.018921][ T5250] new_inode_pseudo+0x10c/0x1fc [ 84.020246][ T5250] new_inode+0x38/0x174 [ 84.021436][ T5250] debugfs_create_dir+0xec/0x3f4 [ 84.022724][ T5250] nbd_start_device+0x3c8/0xb40 [ 84.024046][ T5250] nbd_ioctl+0x514/0xc50 [ 84.025207][ T5250] blkdev_ioctl+0x5f8/0xbb8 [ 84.026439][ T5250] block_ioctl+0xa4/0x118 [ 84.027607][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.028951][ T5250] invoke_syscall+0x98/0x2b8 [ 84.030270][ T5250] el0_svc_common+0x138/0x258 [ 84.031571][ T5250] do_el0_svc+0x58/0x14c [ 84.032732][ T5250] el0_svc+0x78/0x1e0 [ 84.033809][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 84.035148][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 84.038465][ T5253] block nbd0: Failed to create debugfs dir for 'nbd0' [ 84.042458][ T5250] debugfs: out of free dentries, can not create directory 'nbd4' [ 84.048078][ T5260] block nbd2: shutting down sockets [ 84.051336][ T5250] block nbd4: Failed to create debugfs dir for 'nbd4' [ 84.060435][ T5251] FAULT_INJECTION: forcing a failure. [ 84.060435][ T5251] name failslab, interval 1, probability 0, space 0, times 0 [ 84.081637][ T5261] block nbd3: shutting down sockets [ 84.088291][ T5251] CPU: 0 PID: 5251 Comm: syz-executor.1 Tainted: G W 5.15.181-syzkaller #0 [ 84.091160][ T5251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 84.094107][ T5251] Call trace: [ 84.095005][ T5251] dump_backtrace+0x0/0x43c [ 84.096244][ T5251] show_stack+0x2c/0x3c [ 84.096682][ T5262] FAULT_INJECTION: forcing a failure. [ 84.096682][ T5262] name failslab, interval 1, probability 0, space 0, times 0 [ 84.097365][ T5251] __dump_stack+0x30/0x40 [ 84.101909][ T5251] dump_stack_lvl+0xf8/0x160 [ 84.103170][ T5251] dump_stack+0x1c/0x5c [ 84.104363][ T5251] should_fail+0x3c0/0x51c [ 84.105524][ T5251] __should_failslab+0xbc/0x10c [ 84.106843][ T5251] should_failslab+0x10/0x28 [ 84.108145][ T5251] slab_pre_alloc_hook+0x64/0xec [ 84.109517][ T5251] __kmalloc_node+0xb8/0x520 [ 84.110764][ T5251] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 84.112388][ T5251] nbd_start_device+0x14c/0xb40 [ 84.113696][ T5251] nbd_ioctl+0x514/0xc50 [ 84.114835][ T5251] blkdev_ioctl+0x5f8/0xbb8 [ 84.116113][ T5251] block_ioctl+0xa4/0x118 [ 84.117300][ T5251] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.118647][ T5251] invoke_syscall+0x98/0x2b8 [ 84.119912][ T5251] el0_svc_common+0x138/0x258 [ 84.121239][ T5251] do_el0_svc+0x58/0x14c [ 84.122449][ T5251] el0_svc+0x78/0x1e0 [ 84.123506][ T5251] el0t_64_sync_handler+0xcc/0xe4 [ 84.124852][ T5251] el0t_64_sync+0x1a0/0x1a4 [ 84.126088][ T5262] CPU: 1 PID: 5262 Comm: syz-executor.2 Tainted: G W 5.15.181-syzkaller #0 [ 84.128842][ T5262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 84.131534][ T5262] Call trace: [ 84.132415][ T5262] dump_backtrace+0x0/0x43c [ 84.133697][ T5262] show_stack+0x2c/0x3c [ 84.134802][ T5262] __dump_stack+0x30/0x40 [ 84.135967][ T5262] dump_stack_lvl+0xf8/0x160 [ 84.137336][ T5262] dump_stack+0x1c/0x5c [ 84.138462][ T5262] should_fail+0x3c0/0x51c [ 84.139662][ T5262] __should_failslab+0xbc/0x10c [ 84.141006][ T5262] should_failslab+0x10/0x28 [ 84.142311][ T5262] slab_pre_alloc_hook+0x64/0xec [ 84.143719][ T5262] __kmalloc_node+0xb8/0x520 [ 84.144970][ T5262] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.146461][ T5262] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.148047][ T5262] nbd_start_device+0x14c/0xb40 [ 84.149346][ T5262] nbd_ioctl+0x514/0xc50 [ 84.150496][ T5262] blkdev_ioctl+0x5f8/0xbb8 [ 84.151719][ T5262] block_ioctl+0xa4/0x118 [ 84.152956][ T5262] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.154293][ T5262] invoke_syscall+0x98/0x2b8 [ 84.155524][ T5262] el0_svc_common+0x138/0x258 [ 84.156786][ T5262] do_el0_svc+0x58/0x14c [ 84.157975][ T5262] el0_svc+0x78/0x1e0 [ 84.159018][ T5262] el0t_64_sync_handler+0xcc/0xe4 [ 84.160393][ T5262] el0t_64_sync+0x1a0/0x1a4 [ 84.179905][ T5262] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.190263][ T5265] block nbd0: shutting down sockets [ 84.204605][ T5261] FAULT_INJECTION: forcing a failure. [ 84.204605][ T5261] name failslab, interval 1, probability 0, space 0, times 0 [ 84.212245][ T5261] CPU: 1 PID: 5261 Comm: syz-executor.3 Tainted: G W 5.15.181-syzkaller #0 [ 84.215014][ T5261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 84.217748][ T5261] Call trace: [ 84.218632][ T5261] dump_backtrace+0x0/0x43c [ 84.219803][ T5261] show_stack+0x2c/0x3c [ 84.220899][ T5261] __dump_stack+0x30/0x40 [ 84.222097][ T5261] dump_stack_lvl+0xf8/0x160 [ 84.223415][ T5261] dump_stack+0x1c/0x5c [ 84.224559][ T5261] should_fail+0x3c0/0x51c [ 84.225844][ T5261] __should_failslab+0xbc/0x10c [ 84.227121][ T5261] should_failslab+0x10/0x28 [ 84.228338][ T5261] slab_pre_alloc_hook+0x64/0xec [ 84.229752][ T5261] __kmalloc_node+0xb8/0x520 [ 84.230999][ T5261] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.232462][ T5261] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.233986][ T5261] nbd_start_device+0x14c/0xb40 [ 84.235318][ T5261] nbd_ioctl+0x514/0xc50 [ 84.236018][ T5265] FAULT_INJECTION: forcing a failure. [ 84.236018][ T5265] name failslab, interval 1, probability 0, space 0, times 0 [ 84.236454][ T5261] blkdev_ioctl+0x5f8/0xbb8 [ 84.236468][ T5261] block_ioctl+0xa4/0x118 [ 84.236479][ T5261] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.243804][ T5261] invoke_syscall+0x98/0x2b8 [ 84.245022][ T5261] el0_svc_common+0x138/0x258 [ 84.246307][ T5261] do_el0_svc+0x58/0x14c [ 84.247401][ T5261] el0_svc+0x78/0x1e0 [ 84.248507][ T5261] el0t_64_sync_handler+0xcc/0xe4 [ 84.249889][ T5261] el0t_64_sync+0x1a0/0x1a4 [ 84.251102][ T5265] CPU: 0 PID: 5265 Comm: syz-executor.0 Tainted: G W 5.15.181-syzkaller #0 [ 84.253941][ T5265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 84.256751][ T5265] Call trace: