Warning: Permanently added '10.128.1.113' (ED25519) to the list of known hosts. 1970/01/01 00:01:02 ignoring optional flag "sandboxArg"="0" 1970/01/01 00:01:02 ignoring optional flag "type"="gce" 1970/01/01 00:01:02 parsed 1 programs [ 62.857773][ T4343] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:01:02 executed programs: 0 [ 63.366275][ T4359] chnl_net:caif_netlink_parms(): no params data found [ 63.370441][ T4369] chnl_net:caif_netlink_parms(): no params data found [ 63.446814][ T4378] chnl_net:caif_netlink_parms(): no params data found [ 63.469500][ T4363] chnl_net:caif_netlink_parms(): no params data found [ 63.521321][ T4359] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.523433][ T4359] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.526339][ T4359] device bridge_slave_0 entered promiscuous mode [ 63.551028][ T4359] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.553040][ T4359] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.556051][ T4359] device bridge_slave_1 entered promiscuous mode [ 63.559020][ T4369] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.561173][ T4369] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.564208][ T4369] device bridge_slave_0 entered promiscuous mode [ 63.611483][ T4369] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.613525][ T4369] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.616535][ T4369] device bridge_slave_1 entered promiscuous mode [ 63.633766][ T4378] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.636102][ T4378] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.639789][ T4378] device bridge_slave_0 entered promiscuous mode [ 63.654796][ T4363] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.657115][ T4363] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.660066][ T4363] device bridge_slave_0 entered promiscuous mode [ 63.665024][ T4369] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.671793][ T4378] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.674006][ T4378] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.678262][ T4378] device bridge_slave_1 entered promiscuous mode [ 63.682454][ T4359] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.686699][ T4369] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.691783][ T4372] chnl_net:caif_netlink_parms(): no params data found [ 63.704227][ T4363] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.707228][ T4363] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.709982][ T4363] device bridge_slave_1 entered promiscuous mode [ 63.720693][ T4359] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.762835][ T4378] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.776722][ T4359] team0: Port device team_slave_0 added [ 63.782435][ T4369] team0: Port device team_slave_0 added [ 63.787511][ T4359] team0: Port device team_slave_1 added [ 63.796858][ T4378] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.806130][ T4369] team0: Port device team_slave_1 added [ 63.826834][ T4363] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.829712][ T4359] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.831750][ T4359] 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. [ 63.839267][ T4359] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.859556][ T4363] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.865534][ T4359] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.867642][ T4359] 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. [ 63.875031][ T4359] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.906675][ T4378] team0: Port device team_slave_0 added [ 63.909405][ T4369] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 63.911364][ T4369] 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. [ 63.919724][ T4369] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 63.945704][ T4378] team0: Port device team_slave_1 added [ 63.947611][ T4372] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.949697][ T4372] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.952656][ T4372] device bridge_slave_0 entered promiscuous mode [ 63.956906][ T4369] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 63.959934][ T4369] 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. [ 63.967812][ T4369] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 63.973612][ T4363] team0: Port device team_slave_0 added [ 63.994755][ T4372] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.997145][ T4372] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.999870][ T4372] device bridge_slave_1 entered promiscuous mode [ 64.006263][ T4363] team0: Port device team_slave_1 added [ 64.057454][ T4359] device hsr_slave_0 entered promiscuous mode [ 64.095529][ T4359] device hsr_slave_1 entered promiscuous mode [ 64.173462][ T4363] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.175630][ T4363] 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. [ 64.182982][ T4363] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.187517][ T4378] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.189605][ T4378] 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. [ 64.197668][ T4378] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.226582][ T4363] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.228608][ T4363] 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. [ 64.236347][ T4363] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.240179][ T4378] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.242143][ T4378] 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. [ 64.249595][ T4378] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 64.255455][ T4372] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.328580][ T4369] device hsr_slave_0 entered promiscuous mode [ 64.385552][ T4369] device hsr_slave_1 entered promiscuous mode [ 64.435453][ T4369] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.437859][ T4369] Cannot create hsr debugfs directory [ 64.446916][ T4372] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.541575][ T4372] team0: Port device team_slave_0 added [ 64.597642][ T4363] device hsr_slave_0 entered promiscuous mode [ 64.655607][ T4363] device hsr_slave_1 entered promiscuous mode [ 64.695435][ T4363] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.697778][ T4363] Cannot create hsr debugfs directory [ 64.728310][ T4378] device hsr_slave_0 entered promiscuous mode [ 64.785647][ T4378] device hsr_slave_1 entered promiscuous mode [ 64.831452][ T4378] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.833924][ T4378] Cannot create hsr debugfs directory [ 64.843352][ T4372] team0: Port device team_slave_1 added [ 64.914694][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 64.917036][ T4372] 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. [ 64.924353][ T4372] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 64.933769][ T4372] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 64.935925][ T4372] 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. [ 64.943157][ T4372] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 65.066157][ T21] Bluetooth: hci0: command 0x0409 tx timeout [ 65.068110][ T21] Bluetooth: hci1: command 0x0409 tx timeout [ 65.087354][ T4372] device hsr_slave_0 entered promiscuous mode [ 65.145389][ T21] Bluetooth: hci2: command 0x0409 tx timeout [ 65.145668][ T4372] device hsr_slave_1 entered promiscuous mode [ 65.147650][ T21] Bluetooth: hci3: command 0x0409 tx timeout [ 65.155410][ T1960] Bluetooth: hci4: command 0x0409 tx timeout [ 65.185290][ T4372] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.187533][ T4372] Cannot create hsr debugfs directory [ 65.306807][ T4359] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 65.337684][ T4359] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 65.390151][ T4359] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 65.428923][ T4359] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 65.594329][ T4363] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.627433][ T4363] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.675389][ T4363] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.717360][ T4363] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 65.880037][ T4359] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.931099][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.933753][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.948757][ T4363] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.954715][ T4359] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.020016][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.022906][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.026349][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.028462][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.031048][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.040165][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.042931][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.046037][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.048774][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.050997][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.053487][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.071468][ T4363] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.075021][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.079259][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.089119][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.092921][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.112709][ T4359] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 66.116471][ T4359] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 66.120588][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.123612][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.130862][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.133944][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.142158][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.144914][ T407] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.147043][ T407] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.153436][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.160799][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.163882][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.169778][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.172835][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.179900][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.194431][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.205873][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.214844][ T9] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.217046][ T9] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.237245][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.240293][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.244141][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.248484][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.269793][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.272596][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.278129][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.281323][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.284116][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 66.289342][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 66.292145][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 66.299512][ T4363] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 66.356923][ T4369] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 66.411695][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.414012][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.422997][ T4369] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 66.489262][ T4369] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 66.527558][ T4372] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 66.572141][ T4359] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.580689][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 66.583007][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 66.595467][ T4369] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 66.619877][ T4372] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.657581][ T4372] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.702115][ T4363] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 66.716496][ T4372] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 66.795524][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.798569][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.833444][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.838093][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.878820][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.881817][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.889068][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.892630][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.902863][ T4359] device veth0_vlan entered promiscuous mode [ 66.905080][ T4363] device veth0_vlan entered promiscuous mode [ 66.913187][ T4378] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.950233][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.953308][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.958434][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.961042][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.972110][ T4378] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.017800][ T4378] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.071795][ T4363] device veth1_vlan entered promiscuous mode [ 67.079386][ T4359] device veth1_vlan entered promiscuous mode [ 67.100954][ T4378] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.138529][ T4369] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.161984][ T4369] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.165076][ T4063] Bluetooth: hci1: command 0x041b tx timeout [ 67.169689][ T4063] Bluetooth: hci0: command 0x041b tx timeout [ 67.192147][ T4363] device veth0_macvtap entered promiscuous mode [ 67.194916][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.199032][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.201860][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 67.204734][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.214641][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.218553][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.221377][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.224287][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.227207][ T1533] Bluetooth: hci3: command 0x041b tx timeout [ 67.228981][ T1533] Bluetooth: hci2: command 0x041b tx timeout [ 67.235732][ T1960] Bluetooth: hci4: command 0x041b tx timeout [ 67.238557][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 67.241539][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 67.253353][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.283568][ T4363] device veth1_macvtap entered promiscuous mode [ 67.289570][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.292380][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.300388][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.303223][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.305235][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.314272][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.320540][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.323291][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.325451][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.332999][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.340067][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.360694][ T4363] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.364829][ T4359] device veth0_macvtap entered promiscuous mode [ 67.384190][ T4372] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.388046][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 67.390815][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.393785][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.426832][ T4363] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.431491][ T4363] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.434058][ T4363] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.437753][ T4363] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.440183][ T4363] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.447007][ T4359] device veth1_macvtap entered promiscuous mode [ 67.466951][ T4372] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.469031][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 67.471925][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.475025][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.481210][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.484093][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.488102][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.491105][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.493848][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.517578][ T4359] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 67.520874][ T4359] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 67.525043][ T4359] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 67.548707][ T4369] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.551764][ T4369] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.557033][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.559831][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.563324][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.569499][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.572379][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.576957][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.579784][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.582587][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.584579][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.588320][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 67.591553][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 67.594565][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.605016][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.609672][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.612249][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.622699][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.627150][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.629788][ T1552] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.631944][ T1552] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.641299][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.644362][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.650634][ T4359] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 67.653618][ T4359] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 67.657897][ T4359] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 67.718322][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 67.721330][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 67.724198][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.733818][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.737286][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.740361][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.743276][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.748660][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.751529][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.756885][ T4359] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.759358][ T4359] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.761910][ T4359] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.764386][ T4359] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 67.800869][ T4372] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.804571][ T4372] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.823743][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.827549][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.841730][ T4378] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.867311][ T9] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.869653][ T9] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.935730][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.938748][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.947795][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.966298][ T4378] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.997255][ T4369] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.042252][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.044628][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.071665][ T148] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.074083][ T148] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.091234][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.096020][ T148] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.098366][ T148] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.102166][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 68.108230][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.125864][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.132543][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.140687][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.143464][ T4545] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.145580][ T4545] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.152497][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.156121][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.159138][ T4545] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.161318][ T4545] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.163883][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.176602][ T4545] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.220038][ T4545] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 68.223795][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.235905][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.238299][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.240455][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.243086][ T4545] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 68.248560][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.256787][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 68.259527][ T310] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.271837][ T4369] device veth0_vlan entered promiscuous mode [ 68.287746][ T4372] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.333633][ T4378] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.347204][ T4378] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.360079][ T4369] device veth1_vlan entered promiscuous mode [ 68.375983][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.378970][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.381909][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 68.384860][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.394828][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.401229][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.404783][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.412524][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.420651][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.428867][ T4566] block nbd3: shutting down sockets [ 68.433569][ T4568] block nbd2: shutting down sockets [ 68.439596][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.446794][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.452049][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.490207][ T4568] FAULT_INJECTION: forcing a failure. [ 68.490207][ T4568] name failslab, interval 1, probability 0, space 0, times 1 [ 68.497999][ T4566] FAULT_INJECTION: forcing a failure. [ 68.497999][ T4566] name failslab, interval 1, probability 0, space 0, times 1 [ 68.506120][ T4568] CPU: 1 PID: 4568 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 68.508576][ T4568] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 68.511501][ T4568] Call trace: [ 68.512419][ T4568] dump_backtrace+0x0/0x43c [ 68.513714][ T4568] show_stack+0x2c/0x3c [ 68.514894][ T4568] __dump_stack+0x30/0x40 [ 68.516150][ T4568] dump_stack_lvl+0xf8/0x160 [ 68.517470][ T4568] dump_stack+0x1c/0x5c [ 68.518636][ T4568] should_fail+0x3c0/0x51c [ 68.519884][ T4568] __should_failslab+0xbc/0x10c [ 68.521206][ T4568] should_failslab+0x10/0x28 [ 68.522503][ T4568] slab_pre_alloc_hook+0x64/0xec [ 68.523874][ T4568] __kmalloc_node+0xb8/0x520 [ 68.525185][ T4568] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 68.526682][ T4568] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 68.528288][ T4568] nbd_start_device+0x14c/0xb40 [ 68.529822][ T4568] nbd_ioctl+0x514/0xc50 [ 68.531299][ T4568] blkdev_ioctl+0x5f8/0xbb8 [ 68.532682][ T4568] block_ioctl+0xa4/0x118 [ 68.534044][ T4568] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.535469][ T4568] invoke_syscall+0x98/0x2b8 [ 68.536889][ T4568] el0_svc_common+0x138/0x258 [ 68.538191][ T4568] do_el0_svc+0x58/0x14c [ 68.539390][ T4568] el0_svc+0x78/0x1e0 [ 68.540495][ T4568] el0t_64_sync_handler+0xcc/0xe4 [ 68.541910][ T4568] el0t_64_sync+0x1a0/0x1a4 [ 68.550924][ T4369] device veth0_macvtap entered promiscuous mode [ 68.556593][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 68.559507][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 68.562683][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 68.569035][ T4566] CPU: 1 PID: 4566 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 68.571762][ T4566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 68.574638][ T4566] Call trace: [ 68.575511][ T4566] dump_backtrace+0x0/0x43c [ 68.576862][ T4566] show_stack+0x2c/0x3c [ 68.578046][ T4566] __dump_stack+0x30/0x40 [ 68.579386][ T4566] dump_stack_lvl+0xf8/0x160 [ 68.580810][ T4566] dump_stack+0x1c/0x5c [ 68.582064][ T4566] should_fail+0x3c0/0x51c [ 68.583411][ T4566] __should_failslab+0xbc/0x10c [ 68.584855][ T4566] should_failslab+0x10/0x28 [ 68.586182][ T4566] slab_pre_alloc_hook+0x64/0xec [ 68.587678][ T4566] __kmalloc_node+0xb8/0x520 [ 68.589027][ T4566] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 68.590521][ T4566] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 68.592139][ T4566] nbd_start_device+0x14c/0xb40 [ 68.593512][ T4566] nbd_ioctl+0x514/0xc50 [ 68.594818][ T4566] blkdev_ioctl+0x5f8/0xbb8 [ 68.596063][ T4566] block_ioctl+0xa4/0x118 [ 68.597318][ T4566] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.598711][ T4566] invoke_syscall+0x98/0x2b8 [ 68.599964][ T4566] el0_svc_common+0x138/0x258 [ 68.601264][ T4566] do_el0_svc+0x58/0x14c [ 68.602415][ T4566] el0_svc+0x78/0x1e0 [ 68.603582][ T4566] el0t_64_sync_handler+0xcc/0xe4 [ 68.605045][ T4566] el0t_64_sync+0x1a0/0x1a4 [ 68.605075][ T4568] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 68.618756][ T4369] device veth1_macvtap entered promiscuous mode [ 68.625759][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 68.635003][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 68.680090][ T4369] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 68.701756][ T4369] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 68.712675][ T4566] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 68.721088][ T4369] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 68.732506][ T4369] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! 1970/01/01 00:01:08 executed programs: 5 [ 68.768344][ T4369] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 68.773099][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 68.776515][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 68.822855][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.826930][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.829591][ T4369] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 68.832682][ T4369] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 68.845282][ T4369] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 68.848338][ T4369] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 68.861899][ T4369] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 68.876188][ T4378] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.878975][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 68.882312][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 68.912840][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.917617][ T4591] block nbd3: shutting down sockets [ 68.932169][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.936927][ T4589] block nbd2: shutting down sockets [ 68.942976][ T4369] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.946890][ T4369] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.949621][ T4369] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.952253][ T4369] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 68.982031][ T4591] FAULT_INJECTION: forcing a failure. [ 68.982031][ T4591] name failslab, interval 1, probability 0, space 0, times 0 [ 68.983863][ T4589] FAULT_INJECTION: forcing a failure. [ 68.983863][ T4589] name failslab, interval 1, probability 0, space 0, times 0 [ 68.988264][ T4591] CPU: 1 PID: 4591 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 68.989397][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.991774][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 68.997079][ T4591] Call trace: [ 68.997980][ T4591] dump_backtrace+0x0/0x43c [ 68.998474][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.999266][ T4591] show_stack+0x2c/0x3c [ 69.002750][ T4591] __dump_stack+0x30/0x40 [ 69.004018][ T4591] dump_stack_lvl+0xf8/0x160 [ 69.005274][ T4591] dump_stack+0x1c/0x5c [ 69.006473][ T4591] should_fail+0x3c0/0x51c [ 69.007725][ T4591] __should_failslab+0xbc/0x10c [ 69.009019][ T4591] should_failslab+0x10/0x28 [ 69.010367][ T4591] slab_pre_alloc_hook+0x64/0xec [ 69.011767][ T4591] __kmalloc_node+0xb8/0x520 [ 69.013088][ T4591] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.014620][ T4591] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.015641][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.016260][ T4591] nbd_start_device+0x14c/0xb40 [ 69.019701][ T4591] nbd_ioctl+0x514/0xc50 [ 69.020905][ T4591] blkdev_ioctl+0x5f8/0xbb8 [ 69.022132][ T4591] block_ioctl+0xa4/0x118 [ 69.023394][ T4591] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.024768][ T4591] invoke_syscall+0x98/0x2b8 [ 69.025688][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.026126][ T4591] el0_svc_common+0x138/0x258 [ 69.029545][ T4591] do_el0_svc+0x58/0x14c [ 69.030697][ T4591] el0_svc+0x78/0x1e0 [ 69.031812][ T4591] el0t_64_sync_handler+0xcc/0xe4 [ 69.033082][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.033244][ T4591] el0t_64_sync+0x1a0/0x1a4 [ 69.040966][ T4591] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.044073][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.050165][ T4589] CPU: 1 PID: 4589 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 69.052560][ T4589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.055632][ T4589] Call trace: [ 69.056569][ T4589] dump_backtrace+0x0/0x43c [ 69.057850][ T4589] show_stack+0x2c/0x3c [ 69.059057][ T4589] __dump_stack+0x30/0x40 [ 69.060292][ T4589] dump_stack_lvl+0xf8/0x160 [ 69.061669][ T4589] dump_stack+0x1c/0x5c [ 69.062767][ T4589] should_fail+0x3c0/0x51c [ 69.064040][ T4589] __should_failslab+0xbc/0x10c [ 69.065462][ T4589] should_failslab+0x10/0x28 [ 69.066802][ T4589] slab_pre_alloc_hook+0x64/0xec [ 69.068234][ T4589] __kmalloc_node+0xb8/0x520 [ 69.069490][ T4589] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.071091][ T4589] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.072720][ T4589] nbd_start_device+0x14c/0xb40 [ 69.074072][ T4589] nbd_ioctl+0x514/0xc50 [ 69.075291][ T4589] blkdev_ioctl+0x5f8/0xbb8 [ 69.076706][ T4589] block_ioctl+0xa4/0x118 [ 69.078064][ T4589] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.079566][ T4589] invoke_syscall+0x98/0x2b8 [ 69.080824][ T4589] el0_svc_common+0x138/0x258 [ 69.082183][ T4589] do_el0_svc+0x58/0x14c [ 69.083351][ T4589] el0_svc+0x78/0x1e0 [ 69.084469][ T4589] el0t_64_sync_handler+0xcc/0xe4 [ 69.085980][ T4589] el0t_64_sync+0x1a0/0x1a4 [ 69.124946][ T4378] device veth0_vlan entered promiscuous mode [ 69.132887][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.134675][ T4589] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.136284][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.166114][ T4372] device veth0_vlan entered promiscuous mode [ 69.173662][ T4372] device veth1_vlan entered promiscuous mode [ 69.207017][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.209742][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.212475][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.227181][ T4536] Bluetooth: hci0: command 0x040f tx timeout [ 69.229091][ T4536] Bluetooth: hci1: command 0x040f tx timeout [ 69.246346][ T4600] block nbd3: shutting down sockets [ 69.257501][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.259792][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.276775][ T4378] device veth1_vlan entered promiscuous mode [ 69.288765][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.291853][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.295980][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.300299][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 69.307664][ T4539] Bluetooth: hci4: command 0x040f tx timeout [ 69.309543][ T4539] Bluetooth: hci2: command 0x040f tx timeout [ 69.311313][ T4539] Bluetooth: hci3: command 0x040f tx timeout [ 69.320979][ T4600] FAULT_INJECTION: forcing a failure. [ 69.320979][ T4600] name failslab, interval 1, probability 0, space 0, times 0 [ 69.324700][ T4600] CPU: 1 PID: 4600 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 69.327206][ T4600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.330195][ T4600] Call trace: [ 69.331063][ T407] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 69.331154][ T4600] dump_backtrace+0x0/0x43c [ 69.334938][ T4600] show_stack+0x2c/0x3c [ 69.336133][ T4600] __dump_stack+0x30/0x40 [ 69.337394][ T4600] dump_stack_lvl+0xf8/0x160 [ 69.338679][ T4600] dump_stack+0x1c/0x5c [ 69.339861][ T4600] should_fail+0x3c0/0x51c [ 69.341072][ T4600] __should_failslab+0xbc/0x10c [ 69.341327][ T407] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 69.342510][ T4600] should_failslab+0x10/0x28 [ 69.345905][ T4600] slab_pre_alloc_hook+0x64/0xec [ 69.347309][ T4600] __kmalloc_node+0xb8/0x520 [ 69.348692][ T4600] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.350410][ T4600] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.352084][ T4600] nbd_start_device+0x14c/0xb40 [ 69.353376][ T4600] nbd_ioctl+0x514/0xc50 [ 69.354652][ T4600] blkdev_ioctl+0x5f8/0xbb8 [ 69.356037][ T4600] block_ioctl+0xa4/0x118 [ 69.357315][ T4600] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.358660][ T4600] invoke_syscall+0x98/0x2b8 [ 69.359914][ T4600] el0_svc_common+0x138/0x258 [ 69.361193][ T4600] do_el0_svc+0x58/0x14c [ 69.362427][ T4600] el0_svc+0x78/0x1e0 [ 69.363594][ T4600] el0t_64_sync_handler+0xcc/0xe4 [ 69.365083][ T4600] el0t_64_sync+0x1a0/0x1a4 [ 69.367556][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 69.404897][ T4600] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.407518][ T4372] device veth0_macvtap entered promiscuous mode [ 69.407532][ T4609] block nbd2: shutting down sockets [ 69.421499][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.424777][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.483225][ T4378] device veth0_macvtap entered promiscuous mode [ 69.499730][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.502545][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 69.520150][ T4606] FAULT_INJECTION: forcing a failure. [ 69.520150][ T4606] name failslab, interval 1, probability 0, space 0, times 0 [ 69.524473][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 69.530211][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 69.532844][ T4606] CPU: 1 PID: 4606 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 69.535343][ T4606] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.538030][ T4606] Call trace: [ 69.538959][ T4606] dump_backtrace+0x0/0x43c [ 69.540242][ T4606] show_stack+0x2c/0x3c [ 69.541436][ T4606] __dump_stack+0x30/0x40 [ 69.542587][ T4606] dump_stack_lvl+0xf8/0x160 [ 69.543874][ T4606] dump_stack+0x1c/0x5c [ 69.545186][ T4606] should_fail+0x3c0/0x51c [ 69.546491][ T4606] __should_failslab+0xbc/0x10c [ 69.547862][ T4606] should_failslab+0x10/0x28 [ 69.549142][ T4606] slab_pre_alloc_hook+0x64/0xec [ 69.550608][ T4606] __kmalloc_node+0xb8/0x520 [ 69.551888][ T4606] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.553396][ T4606] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.555039][ T4606] nbd_start_device+0x14c/0xb40 [ 69.556457][ T4606] nbd_ioctl+0x514/0xc50 [ 69.557658][ T4606] blkdev_ioctl+0x5f8/0xbb8 [ 69.558917][ T4606] block_ioctl+0xa4/0x118 [ 69.560061][ T4606] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.561482][ T4606] invoke_syscall+0x98/0x2b8 [ 69.562802][ T4606] el0_svc_common+0x138/0x258 [ 69.564157][ T4606] do_el0_svc+0x58/0x14c [ 69.565358][ T4606] el0_svc+0x78/0x1e0 [ 69.566549][ T4606] el0t_64_sync_handler+0xcc/0xe4 [ 69.568027][ T4606] el0t_64_sync+0x1a0/0x1a4 [ 69.584482][ T4372] device veth1_macvtap entered promiscuous mode [ 69.598552][ T4378] device veth1_macvtap entered promiscuous mode [ 69.601856][ T4606] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.607512][ T4615] block nbd1: shutting down sockets [ 69.629278][ T2055] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.631321][ T2055] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.635732][ T4616] block nbd3: shutting down sockets [ 69.651705][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.654674][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.666261][ T4611] FAULT_INJECTION: forcing a failure. [ 69.666261][ T4611] name failslab, interval 1, probability 0, space 0, times 0 [ 69.675361][ T4611] CPU: 0 PID: 4611 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 69.677878][ T4611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.680015][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.680904][ T4611] Call trace: [ 69.680911][ T4611] dump_backtrace+0x0/0x43c [ 69.683917][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.684859][ T4611] show_stack+0x2c/0x3c [ 69.690270][ T4611] __dump_stack+0x30/0x40 [ 69.690345][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.691528][ T4611] dump_stack_lvl+0xf8/0x160 [ 69.694497][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.695813][ T4611] dump_stack+0x1c/0x5c [ 69.695831][ T4611] should_fail+0x3c0/0x51c [ 69.695841][ T4611] __should_failslab+0xbc/0x10c [ 69.695852][ T4611] should_failslab+0x10/0x28 [ 69.695862][ T4611] slab_pre_alloc_hook+0x64/0xec [ 69.695872][ T4611] __kmalloc_node+0xb8/0x520 [ 69.695880][ T4611] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.695891][ T4611] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.695901][ T4611] nbd_start_device+0x14c/0xb40 [ 69.695911][ T4611] nbd_ioctl+0x514/0xc50 [ 69.695920][ T4611] blkdev_ioctl+0x5f8/0xbb8 [ 69.695928][ T4611] block_ioctl+0xa4/0x118 [ 69.695938][ T4611] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.695949][ T4611] invoke_syscall+0x98/0x2b8 [ 69.695959][ T4611] el0_svc_common+0x138/0x258 [ 69.695968][ T4611] do_el0_svc+0x58/0x14c [ 69.695978][ T4611] el0_svc+0x78/0x1e0 [ 69.695986][ T4611] el0t_64_sync_handler+0xcc/0xe4 [ 69.695995][ T4611] el0t_64_sync+0x1a0/0x1a4 [ 69.727740][ T4611] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.757032][ T4378] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.759376][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.767413][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 69.776246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.799353][ T4616] FAULT_INJECTION: forcing a failure. [ 69.799353][ T4616] name failslab, interval 1, probability 0, space 0, times 0 [ 69.803152][ T4616] CPU: 1 PID: 4616 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 69.805676][ T4616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.808611][ T4616] Call trace: [ 69.809565][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.809587][ T4616] dump_backtrace+0x0/0x43c [ 69.813207][ T4616] show_stack+0x2c/0x3c [ 69.814342][ T4616] __dump_stack+0x30/0x40 [ 69.815579][ T4616] dump_stack_lvl+0xf8/0x160 [ 69.816940][ T4616] dump_stack+0x1c/0x5c [ 69.818108][ T4616] should_fail+0x3c0/0x51c [ 69.819476][ T4616] __should_failslab+0xbc/0x10c [ 69.820783][ T4616] should_failslab+0x10/0x28 [ 69.822074][ T4616] slab_pre_alloc_hook+0x64/0xec [ 69.823534][ T4616] __kmalloc_node+0xb8/0x520 [ 69.824785][ T4616] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 69.826354][ T4616] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 69.827979][ T4616] nbd_start_device+0x14c/0xb40 [ 69.829374][ T4616] nbd_ioctl+0x514/0xc50 [ 69.830515][ T4616] blkdev_ioctl+0x5f8/0xbb8 [ 69.831786][ T4616] block_ioctl+0xa4/0x118 [ 69.833031][ T4616] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.834405][ T4616] invoke_syscall+0x98/0x2b8 [ 69.835652][ T4616] el0_svc_common+0x138/0x258 [ 69.836982][ T4616] do_el0_svc+0x58/0x14c [ 69.838231][ T4616] el0_svc+0x78/0x1e0 [ 69.839374][ T4616] el0t_64_sync_handler+0xcc/0xe4 [ 69.840798][ T4616] el0t_64_sync+0x1a0/0x1a4 [ 69.846691][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.849622][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.852450][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.865683][ T4623] block nbd2: shutting down sockets [ 69.873733][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.883910][ T4616] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 69.888316][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.891841][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.898251][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 69.901574][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.908557][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 69.917456][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 69.920373][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 69.929600][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.932589][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.946207][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.949277][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.955816][ T4378] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 69.958819][ T4378] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 69.960702][ T4621] FAULT_INJECTION: forcing a failure. [ 69.960702][ T4621] name failslab, interval 1, probability 0, space 0, times 0 [ 69.968491][ T4621] CPU: 1 PID: 4621 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 69.970834][ T4621] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.973704][ T4621] Call trace: [ 69.974589][ T4621] dump_backtrace+0x0/0x43c [ 69.975883][ T4621] show_stack+0x2c/0x3c [ 69.977134][ T4621] __dump_stack+0x30/0x40 [ 69.977231][ T4378] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 69.978385][ T4621] dump_stack_lvl+0xf8/0x160 [ 69.981690][ T4621] dump_stack+0x1c/0x5c [ 69.982918][ T4621] should_fail+0x3c0/0x51c [ 69.984179][ T4621] __should_failslab+0xbc/0x10c [ 69.985612][ T4621] should_failslab+0x10/0x28 [ 69.987035][ T4621] slab_pre_alloc_hook+0x64/0xec [ 69.987343][ T4378] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.988493][ T4621] __kmalloc_node+0xb8/0x520 [ 69.990982][ T4378] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.992263][ T4621] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 69.994729][ T4378] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 69.996449][ T4621] nbd_start_device+0x14c/0xb40 [ 69.996469][ T4621] nbd_ioctl+0x514/0xc50 [ 69.996478][ T4621] blkdev_ioctl+0x5f8/0xbb8 [ 69.996487][ T4621] block_ioctl+0xa4/0x118 [ 69.996497][ T4621] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.996509][ T4621] invoke_syscall+0x98/0x2b8 [ 69.996520][ T4621] el0_svc_common+0x138/0x258 [ 70.006898][ T4378] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.008056][ T4621] do_el0_svc+0x58/0x14c [ 70.011661][ T4621] el0_svc+0x78/0x1e0 [ 70.012776][ T4621] el0t_64_sync_handler+0xcc/0xe4 [ 70.014159][ T4621] el0t_64_sync+0x1a0/0x1a4 [ 70.022181][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.027848][ T4629] block nbd1: shutting down sockets [ 70.032541][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.038366][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.041603][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.044735][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.054380][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.057622][ T4372] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 70.060855][ T4372] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 70.073371][ T4372] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 70.077642][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.081020][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.084854][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 70.097246][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 70.101068][ T4627] FAULT_INJECTION: forcing a failure. [ 70.101068][ T4627] name failslab, interval 1, probability 0, space 0, times 0 [ 70.125215][ T4627] CPU: 0 PID: 4627 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 70.127769][ T4627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 70.127824][ T4372] netdevsim netdevsim4 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.130831][ T4627] Call trace: [ 70.133328][ T4372] netdevsim netdevsim4 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.134220][ T4627] dump_backtrace+0x0/0x43c [ 70.137892][ T4627] show_stack+0x2c/0x3c [ 70.139067][ T4627] __dump_stack+0x30/0x40 [ 70.140293][ T4627] dump_stack_lvl+0xf8/0x160 [ 70.141633][ T4627] dump_stack+0x1c/0x5c [ 70.142792][ T4627] should_fail+0x3c0/0x51c [ 70.144049][ T4627] __should_failslab+0xbc/0x10c [ 70.145379][ T4627] should_failslab+0x10/0x28 [ 70.146712][ T4627] slab_pre_alloc_hook+0x64/0xec [ 70.148124][ T4627] __kmalloc_node+0xb8/0x520 [ 70.149574][ T4627] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.151143][ T4627] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.152829][ T4627] nbd_start_device+0x14c/0xb40 [ 70.154204][ T4627] nbd_ioctl+0x514/0xc50 [ 70.155472][ T4627] blkdev_ioctl+0x5f8/0xbb8 [ 70.156758][ T4627] block_ioctl+0xa4/0x118 [ 70.157950][ T4627] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.159298][ T4627] invoke_syscall+0x98/0x2b8 [ 70.160006][ T4372] netdevsim netdevsim4 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.160681][ T4627] el0_svc_common+0x138/0x258 [ 70.164574][ T4627] do_el0_svc+0x58/0x14c [ 70.165839][ T4627] el0_svc+0x78/0x1e0 [ 70.167015][ T4627] el0t_64_sync_handler+0xcc/0xe4 [ 70.168461][ T4627] el0t_64_sync+0x1a0/0x1a4 [ 70.173271][ T4372] netdevsim netdevsim4 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 70.239496][ T4627] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.266500][ T1552] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.268996][ T1552] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.358215][ T407] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.384408][ T407] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.387166][ T407] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.400697][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.421630][ T1552] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.424050][ T1552] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.437459][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 70.471377][ T407] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.473692][ T407] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.479365][ T1552] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 70.505671][ T4642] block nbd0: shutting down sockets [ 70.571593][ T4642] FAULT_INJECTION: forcing a failure. [ 70.571593][ T4642] name failslab, interval 1, probability 0, space 0, times 0 [ 70.588327][ T4642] CPU: 1 PID: 4642 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 70.590753][ T4642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 70.593537][ T4642] Call trace: [ 70.594457][ T4642] dump_backtrace+0x0/0x43c [ 70.595679][ T4642] show_stack+0x2c/0x3c [ 70.596823][ T4642] __dump_stack+0x30/0x40 [ 70.597979][ T4642] dump_stack_lvl+0xf8/0x160 [ 70.599249][ T4642] dump_stack+0x1c/0x5c [ 70.600373][ T4642] should_fail+0x3c0/0x51c [ 70.601596][ T4642] __should_failslab+0xbc/0x10c [ 70.602994][ T4642] should_failslab+0x10/0x28 [ 70.604270][ T4642] slab_pre_alloc_hook+0x64/0xec [ 70.605689][ T4642] __kmalloc_node+0xb8/0x520 [ 70.607089][ T4642] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.608604][ T4642] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.610174][ T4642] nbd_start_device+0x14c/0xb40 [ 70.611546][ T4642] nbd_ioctl+0x514/0xc50 [ 70.612749][ T4642] blkdev_ioctl+0x5f8/0xbb8 [ 70.613978][ T4642] block_ioctl+0xa4/0x118 [ 70.615209][ T4642] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.616543][ T4642] invoke_syscall+0x98/0x2b8 [ 70.617909][ T4642] el0_svc_common+0x138/0x258 [ 70.619284][ T4642] do_el0_svc+0x58/0x14c [ 70.620518][ T4642] el0_svc+0x78/0x1e0 [ 70.621582][ T4642] el0t_64_sync_handler+0xcc/0xe4 [ 70.622968][ T4642] el0t_64_sync+0x1a0/0x1a4 [ 70.632870][ T4642] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.635999][ T4646] block nbd4: shutting down sockets [ 70.680296][ T4646] FAULT_INJECTION: forcing a failure. [ 70.680296][ T4646] name failslab, interval 1, probability 0, space 0, times 0 [ 70.703113][ T4646] CPU: 1 PID: 4646 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 70.705557][ T4646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 70.708508][ T4646] Call trace: [ 70.709434][ T4646] dump_backtrace+0x0/0x43c [ 70.710673][ T4646] show_stack+0x2c/0x3c [ 70.711877][ T4646] __dump_stack+0x30/0x40 [ 70.713028][ T4646] dump_stack_lvl+0xf8/0x160 [ 70.714330][ T4646] dump_stack+0x1c/0x5c [ 70.715516][ T4646] should_fail+0x3c0/0x51c [ 70.716761][ T4646] __should_failslab+0xbc/0x10c [ 70.718097][ T4646] should_failslab+0x10/0x28 [ 70.719410][ T4646] slab_pre_alloc_hook+0x64/0xec [ 70.720840][ T4646] __kmalloc_node+0xb8/0x520 [ 70.722174][ T4646] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.723807][ T4646] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.725464][ T4646] nbd_start_device+0x14c/0xb40 [ 70.726890][ T4646] nbd_ioctl+0x514/0xc50 [ 70.728089][ T4646] blkdev_ioctl+0x5f8/0xbb8 [ 70.729368][ T4646] block_ioctl+0xa4/0x118 [ 70.730625][ T4646] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.732069][ T4646] invoke_syscall+0x98/0x2b8 [ 70.733344][ T4646] el0_svc_common+0x138/0x258 [ 70.734608][ T4646] do_el0_svc+0x58/0x14c [ 70.735844][ T4646] el0_svc+0x78/0x1e0 [ 70.736979][ T4646] el0t_64_sync_handler+0xcc/0xe4 [ 70.738401][ T4646] el0t_64_sync+0x1a0/0x1a4 [ 70.741149][ T4646] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.875877][ T4665] block nbd3: shutting down sockets [ 70.887195][ T4664] block nbd2: shutting down sockets [ 70.888855][ T4666] block nbd0: shutting down sockets [ 70.905927][ T4663] block nbd1: shutting down sockets [ 70.946495][ T4673] block nbd4: shutting down sockets [ 70.963052][ T4663] FAULT_INJECTION: forcing a failure. [ 70.963052][ T4663] name failslab, interval 1, probability 0, space 0, times 0 [ 70.966939][ T4666] FAULT_INJECTION: forcing a failure. [ 70.966939][ T4666] name failslab, interval 1, probability 0, space 0, times 0 [ 70.966970][ T4666] CPU: 0 PID: 4666 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 70.966982][ T4666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 70.966989][ T4666] Call trace: [ 70.966992][ T4666] dump_backtrace+0x0/0x43c [ 70.967006][ T4666] show_stack+0x2c/0x3c [ 70.967013][ T4666] __dump_stack+0x30/0x40 [ 70.967025][ T4666] dump_stack_lvl+0xf8/0x160 [ 70.967035][ T4666] dump_stack+0x1c/0x5c [ 70.967044][ T4666] should_fail+0x3c0/0x51c [ 70.967054][ T4666] __should_failslab+0xbc/0x10c [ 70.967064][ T4666] should_failslab+0x10/0x28 [ 70.967074][ T4666] slab_pre_alloc_hook+0x64/0xec [ 70.967084][ T4666] __kmalloc_node+0xb8/0x520 [ 70.967092][ T4666] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.973512][ T4664] FAULT_INJECTION: forcing a failure. [ 70.973512][ T4664] name failslab, interval 1, probability 0, space 0, times 0 [ 70.975699][ T4666] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.975720][ T4666] nbd_start_device+0x14c/0xb40 [ 70.975732][ T4666] nbd_ioctl+0x514/0xc50 [ 70.975741][ T4666] blkdev_ioctl+0x5f8/0xbb8 [ 70.975750][ T4666] block_ioctl+0xa4/0x118 [ 70.975759][ T4666] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.975770][ T4666] invoke_syscall+0x98/0x2b8 [ 70.975781][ T4666] el0_svc_common+0x138/0x258 [ 70.975790][ T4666] do_el0_svc+0x58/0x14c [ 70.975799][ T4666] el0_svc+0x78/0x1e0 [ 70.975808][ T4666] el0t_64_sync_handler+0xcc/0xe4 [ 70.975817][ T4666] el0t_64_sync+0x1a0/0x1a4 [ 70.980670][ T4665] FAULT_INJECTION: forcing a failure. [ 70.980670][ T4665] name failslab, interval 1, probability 0, space 0, times 0 [ 70.987953][ T4664] CPU: 1 PID: 4664 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 70.999472][ T4668] FAULT_INJECTION: forcing a failure. [ 70.999472][ T4668] name failslab, interval 1, probability 0, space 0, times 0 [ 71.000032][ T4664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.000043][ T4664] Call trace: [ 71.000047][ T4664] dump_backtrace+0x0/0x43c [ 71.012740][ T4666] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.013664][ T4664] show_stack+0x2c/0x3c [ 71.013682][ T4664] __dump_stack+0x30/0x40 [ 71.013694][ T4664] dump_stack_lvl+0xf8/0x160 [ 71.013704][ T4664] dump_stack+0x1c/0x5c [ 71.031620][ T4664] should_fail+0x3c0/0x51c [ 71.032845][ T4664] __should_failslab+0xbc/0x10c [ 71.034236][ T4664] should_failslab+0x10/0x28 [ 71.035592][ T4664] slab_pre_alloc_hook+0x64/0xec [ 71.036976][ T4664] __kmalloc_node+0xb8/0x520 [ 71.038231][ T4664] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.039888][ T4664] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.041437][ T4664] nbd_start_device+0x14c/0xb40 [ 71.042759][ T4664] nbd_ioctl+0x514/0xc50 [ 71.043996][ T4664] blkdev_ioctl+0x5f8/0xbb8 [ 71.045313][ T4664] block_ioctl+0xa4/0x118 [ 71.046534][ T4664] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.047961][ T4664] invoke_syscall+0x98/0x2b8 [ 71.049206][ T4664] el0_svc_common+0x138/0x258 [ 71.050535][ T4664] do_el0_svc+0x58/0x14c [ 71.051773][ T4664] el0_svc+0x78/0x1e0 [ 71.052961][ T4664] el0t_64_sync_handler+0xcc/0xe4 [ 71.054432][ T4664] el0t_64_sync+0x1a0/0x1a4 [ 71.055818][ T4668] CPU: 0 PID: 4668 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 71.058457][ T4668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.061353][ T4668] Call trace: [ 71.062263][ T4668] dump_backtrace+0x0/0x43c [ 71.063644][ T4668] show_stack+0x2c/0x3c [ 71.063839][ T4664] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.064985][ T4668] __dump_stack+0x30/0x40 [ 71.065005][ T4668] dump_stack_lvl+0xf8/0x160 [ 71.065016][ T4668] dump_stack+0x1c/0x5c [ 71.065025][ T4668] should_fail+0x3c0/0x51c [ 71.071837][ T4668] __should_failslab+0xbc/0x10c [ 71.073177][ T4668] should_failslab+0x10/0x28 [ 71.074621][ T4668] slab_pre_alloc_hook+0x64/0xec [ 71.075978][ T4668] __kmalloc_node+0xb8/0x520 [ 71.077197][ T4668] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.078825][ T4668] nbd_start_device+0x14c/0xb40 [ 71.080232][ T4668] nbd_ioctl+0x514/0xc50 [ 71.081371][ T4668] blkdev_ioctl+0x5f8/0xbb8 [ 71.082654][ T4668] block_ioctl+0xa4/0x118 [ 71.083868][ T4668] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.085374][ T4668] invoke_syscall+0x98/0x2b8 [ 71.086797][ T4668] el0_svc_common+0x138/0x258 [ 71.088161][ T4668] do_el0_svc+0x58/0x14c [ 71.089521][ T4668] el0_svc+0x78/0x1e0 [ 71.090794][ T4668] el0t_64_sync_handler+0xcc/0xe4 [ 71.092258][ T4668] el0t_64_sync+0x1a0/0x1a4 [ 71.093515][ T4665] CPU: 1 PID: 4665 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 71.095843][ T4665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.098657][ T4665] Call trace: [ 71.099582][ T4665] dump_backtrace+0x0/0x43c [ 71.100886][ T4665] show_stack+0x2c/0x3c [ 71.102071][ T4665] __dump_stack+0x30/0x40 [ 71.103408][ T4665] dump_stack_lvl+0xf8/0x160 [ 71.104707][ T4665] dump_stack+0x1c/0x5c [ 71.105847][ T4665] should_fail+0x3c0/0x51c [ 71.107079][ T4665] __should_failslab+0xbc/0x10c [ 71.108503][ T4665] should_failslab+0x10/0x28 [ 71.109828][ T4665] slab_pre_alloc_hook+0x64/0xec [ 71.111220][ T4665] __kmalloc_node+0xb8/0x520 [ 71.112557][ T4665] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.114129][ T4665] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.115834][ T4665] nbd_start_device+0x14c/0xb40 [ 71.117284][ T4665] nbd_ioctl+0x514/0xc50 [ 71.118482][ T4665] blkdev_ioctl+0x5f8/0xbb8 [ 71.119723][ T4665] block_ioctl+0xa4/0x118 [ 71.120890][ T4665] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.122262][ T4665] invoke_syscall+0x98/0x2b8 [ 71.123583][ T4665] el0_svc_common+0x138/0x258 [ 71.124920][ T4665] do_el0_svc+0x58/0x14c [ 71.126080][ T4665] el0_svc+0x78/0x1e0 [ 71.127284][ T4665] el0t_64_sync_handler+0xcc/0xe4 [ 71.128700][ T4665] el0t_64_sync+0x1a0/0x1a4 [ 71.133630][ T4665] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.139283][ T4663] CPU: 1 PID: 4663 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 71.141713][ T4663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.144585][ T4663] Call trace: [ 71.145503][ T4663] dump_backtrace+0x0/0x43c [ 71.146805][ T4663] show_stack+0x2c/0x3c [ 71.147966][ T4663] __dump_stack+0x30/0x40 [ 71.149119][ T4663] dump_stack_lvl+0xf8/0x160 [ 71.150446][ T4663] dump_stack+0x1c/0x5c [ 71.151655][ T4663] should_fail+0x3c0/0x51c [ 71.153003][ T4663] __should_failslab+0xbc/0x10c [ 71.154374][ T4663] should_failslab+0x10/0x28 [ 71.155625][ T4663] slab_pre_alloc_hook+0x64/0xec [ 71.157008][ T4663] __kmalloc_node+0xb8/0x520 [ 71.158303][ T4663] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.159763][ T4663] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.161419][ T4663] nbd_start_device+0x14c/0xb40 [ 71.162819][ T4663] nbd_ioctl+0x514/0xc50 [ 71.163932][ T4663] blkdev_ioctl+0x5f8/0xbb8 [ 71.165233][ T4663] block_ioctl+0xa4/0x118 [ 71.166453][ T4663] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.167825][ T4663] invoke_syscall+0x98/0x2b8 [ 71.169149][ T4663] el0_svc_common+0x138/0x258 [ 71.170592][ T4663] do_el0_svc+0x58/0x14c [ 71.171805][ T4663] el0_svc+0x78/0x1e0 [ 71.173018][ T4663] el0t_64_sync_handler+0xcc/0xe4 [ 71.174408][ T4663] el0t_64_sync+0x1a0/0x1a4 [ 71.214637][ T4663] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.297539][ T4688] block nbd0: shutting down sockets [ 71.297905][ T4686] block nbd3: shutting down sockets [ 71.307092][ T4442] Bluetooth: hci1: command 0x0419 tx timeout [ 71.308991][ T4442] Bluetooth: hci0: command 0x0419 tx timeout [ 71.341891][ T4686] FAULT_INJECTION: forcing a failure. [ 71.341891][ T4686] name failslab, interval 1, probability 0, space 0, times 0 [ 71.347183][ T4686] CPU: 1 PID: 4686 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 71.349645][ T4686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.350103][ T4688] FAULT_INJECTION: forcing a failure. [ 71.350103][ T4688] name failslab, interval 1, probability 0, space 0, times 0 [ 71.352534][ T4686] Call trace: [ 71.352541][ T4686] dump_backtrace+0x0/0x43c [ 71.352557][ T4686] show_stack+0x2c/0x3c [ 71.359437][ T4686] __dump_stack+0x30/0x40 [ 71.360607][ T4686] dump_stack_lvl+0xf8/0x160 [ 71.361901][ T4686] dump_stack+0x1c/0x5c [ 71.363066][ T4686] should_fail+0x3c0/0x51c [ 71.364323][ T4686] __should_failslab+0xbc/0x10c [ 71.365726][ T4686] should_failslab+0x10/0x28 [ 71.366998][ T4686] slab_pre_alloc_hook+0x64/0xec [ 71.368365][ T4686] __kmalloc_node+0xb8/0x520 [ 71.369655][ T4686] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.371142][ T4686] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.372772][ T4686] nbd_start_device+0x14c/0xb40 [ 71.374138][ T4686] nbd_ioctl+0x514/0xc50 [ 71.375253][ T4686] blkdev_ioctl+0x5f8/0xbb8 [ 71.376531][ T4686] block_ioctl+0xa4/0x118 [ 71.377720][ T4686] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.379124][ T4686] invoke_syscall+0x98/0x2b8 [ 71.380397][ T4686] el0_svc_common+0x138/0x258 [ 71.381712][ T4686] do_el0_svc+0x58/0x14c [ 71.382928][ T4686] el0_svc+0x78/0x1e0 [ 71.384016][ T4686] el0t_64_sync_handler+0xcc/0xe4 [ 71.385541][ T4686] el0t_64_sync+0x1a0/0x1a4 [ 71.386840][ T4688] CPU: 0 PID: 4688 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 71.389291][ T4688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.391254][ T21] Bluetooth: hci3: command 0x0419 tx timeout [ 71.392115][ T4688] Call trace: [ 71.392122][ T4688] dump_backtrace+0x0/0x43c [ 71.396004][ T4688] show_stack+0x2c/0x3c [ 71.397180][ T4688] __dump_stack+0x30/0x40 [ 71.397185][ T4693] block nbd2: shutting down sockets [ 71.397286][ T21] Bluetooth: hci2: command 0x0419 tx timeout [ 71.398442][ T4688] dump_stack_lvl+0xf8/0x160 [ 71.398459][ T4688] dump_stack+0x1c/0x5c [ 71.398469][ T4688] should_fail+0x3c0/0x51c [ 71.398479][ T4688] __should_failslab+0xbc/0x10c [ 71.398489][ T4688] should_failslab+0x10/0x28 [ 71.398499][ T4688] slab_pre_alloc_hook+0x64/0xec [ 71.398508][ T4688] __kmalloc_node+0xb8/0x520 [ 71.398517][ T4688] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.398527][ T4688] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.398537][ T4688] nbd_start_device+0x14c/0xb40 [ 71.398547][ T4688] nbd_ioctl+0x514/0xc50 [ 71.398557][ T4688] blkdev_ioctl+0x5f8/0xbb8 [ 71.398565][ T4688] block_ioctl+0xa4/0x118 [ 71.398575][ T4688] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.398585][ T4688] invoke_syscall+0x98/0x2b8 [ 71.398595][ T4688] el0_svc_common+0x138/0x258 [ 71.398605][ T4688] do_el0_svc+0x58/0x14c [ 71.398614][ T4688] el0_svc+0x78/0x1e0 [ 71.398622][ T4688] el0t_64_sync_handler+0xcc/0xe4 [ 71.398630][ T4688] el0t_64_sync+0x1a0/0x1a4 [ 71.430464][ T4694] block nbd4: shutting down sockets [ 71.431766][ T4688] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.435862][ T4686] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.455592][ T21] Bluetooth: hci4: command 0x0419 tx timeout [ 71.468050][ T4700] block nbd1: shutting down sockets [ 71.504574][ T4699] FAULT_INJECTION: forcing a failure. [ 71.504574][ T4699] name failslab, interval 1, probability 0, space 0, times 0 [ 71.511590][ T4694] FAULT_INJECTION: forcing a failure. [ 71.511590][ T4694] name failslab, interval 1, probability 0, space 0, times 0 [ 71.526341][ T4699] CPU: 1 PID: 4699 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 71.528701][ T4699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.531454][ T4699] Call trace: [ 71.532380][ T4699] dump_backtrace+0x0/0x43c [ 71.533697][ T4699] show_stack+0x2c/0x3c [ 71.534902][ T4699] __dump_stack+0x30/0x40 [ 71.536086][ T4699] dump_stack_lvl+0xf8/0x160 [ 71.537375][ T4699] dump_stack+0x1c/0x5c [ 71.538510][ T4699] should_fail+0x3c0/0x51c [ 71.539751][ T4699] __should_failslab+0xbc/0x10c [ 71.541112][ T4699] should_failslab+0x10/0x28 [ 71.542442][ T4699] slab_pre_alloc_hook+0x64/0xec [ 71.543951][ T4699] __kmalloc_node+0xb8/0x520 [ 71.545193][ T4699] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.546693][ T4699] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.548216][ T4699] nbd_start_device+0x14c/0xb40 [ 71.549549][ T4699] nbd_ioctl+0x514/0xc50 [ 71.550729][ T4699] blkdev_ioctl+0x5f8/0xbb8 [ 71.552056][ T4699] block_ioctl+0xa4/0x118 [ 71.553255][ T4699] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.554677][ T4699] invoke_syscall+0x98/0x2b8 [ 71.556038][ T4699] el0_svc_common+0x138/0x258 [ 71.557426][ T4699] do_el0_svc+0x58/0x14c [ 71.558616][ T4699] el0_svc+0x78/0x1e0 [ 71.559793][ T4699] el0t_64_sync_handler+0xcc/0xe4 [ 71.561347][ T4699] el0t_64_sync+0x1a0/0x1a4 [ 71.567481][ T4694] CPU: 1 PID: 4694 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 71.569947][ T4696] FAULT_INJECTION: forcing a failure. [ 71.569947][ T4696] name failslab, interval 1, probability 0, space 0, times 0 [ 71.569982][ T4694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.576466][ T4694] Call trace: [ 71.577353][ T4694] dump_backtrace+0x0/0x43c [ 71.578724][ T4694] show_stack+0x2c/0x3c [ 71.579937][ T4694] __dump_stack+0x30/0x40 [ 71.581145][ T4694] dump_stack_lvl+0xf8/0x160 [ 71.582436][ T4694] dump_stack+0x1c/0x5c [ 71.583652][ T4694] should_fail+0x3c0/0x51c [ 71.584966][ T4694] __should_failslab+0xbc/0x10c [ 71.586358][ T4694] should_failslab+0x10/0x28 [ 71.587623][ T4694] slab_pre_alloc_hook+0x64/0xec [ 71.589121][ T4694] __kmalloc_node+0xb8/0x520 [ 71.590445][ T4694] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.591933][ T4694] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.593625][ T4694] nbd_start_device+0x14c/0xb40 [ 71.594903][ T4694] nbd_ioctl+0x514/0xc50 [ 71.596074][ T4694] blkdev_ioctl+0x5f8/0xbb8 [ 71.597411][ T4694] block_ioctl+0xa4/0x118 [ 71.598690][ T4694] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.600184][ T4694] invoke_syscall+0x98/0x2b8 [ 71.601451][ T4694] el0_svc_common+0x138/0x258 [ 71.602804][ T4694] do_el0_svc+0x58/0x14c [ 71.603964][ T4694] el0_svc+0x78/0x1e0 [ 71.605089][ T4694] el0t_64_sync_handler+0xcc/0xe4 [ 71.606476][ T4694] el0t_64_sync+0x1a0/0x1a4 [ 71.607702][ T4696] CPU: 0 PID: 4696 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 71.610193][ T4696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.613109][ T4696] Call trace: [ 71.614064][ T4696] dump_backtrace+0x0/0x43c [ 71.615430][ T4696] show_stack+0x2c/0x3c [ 71.616578][ T4696] __dump_stack+0x30/0x40 [ 71.617792][ T4696] dump_stack_lvl+0xf8/0x160 [ 71.619070][ T4696] dump_stack+0x1c/0x5c [ 71.620014][ T4699] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.620291][ T4696] should_fail+0x3c0/0x51c [ 71.623369][ T4696] __should_failslab+0xbc/0x10c [ 71.624721][ T4696] should_failslab+0x10/0x28 [ 71.626004][ T4696] slab_pre_alloc_hook+0x64/0xec [ 71.627425][ T4696] __kmalloc_node+0xb8/0x520 [ 71.628733][ T4696] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.630382][ T4696] nbd_start_device+0x14c/0xb40 [ 71.631738][ T4696] nbd_ioctl+0x514/0xc50 [ 71.632942][ T4696] blkdev_ioctl+0x5f8/0xbb8 [ 71.634242][ T4696] block_ioctl+0xa4/0x118 [ 71.635447][ T4696] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.635922][ T4694] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.636920][ T4696] invoke_syscall+0x98/0x2b8 [ 71.636939][ T4696] el0_svc_common+0x138/0x258 [ 71.636949][ T4696] do_el0_svc+0x58/0x14c [ 71.642652][ T4696] el0_svc+0x78/0x1e0 [ 71.643852][ T4696] el0t_64_sync_handler+0xcc/0xe4 [ 71.645328][ T4696] el0t_64_sync+0x1a0/0x1a4 [ 71.686146][ T4708] block nbd3: shutting down sockets [ 71.727878][ T4706] block nbd0: shutting down sockets [ 71.788103][ T4715] block nbd2: shutting down sockets [ 71.803667][ T4706] FAULT_INJECTION: forcing a failure. [ 71.803667][ T4706] name failslab, interval 1, probability 0, space 0, times 0 [ 71.819485][ T4706] CPU: 0 PID: 4706 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 71.821899][ T4706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.824717][ T4706] Call trace: [ 71.825672][ T4706] dump_backtrace+0x0/0x43c [ 71.826911][ T4706] show_stack+0x2c/0x3c [ 71.828095][ T4706] __dump_stack+0x30/0x40 [ 71.829274][ T4706] dump_stack_lvl+0xf8/0x160 [ 71.830504][ T4706] dump_stack+0x1c/0x5c [ 71.831703][ T4706] should_fail+0x3c0/0x51c [ 71.832982][ T4706] __should_failslab+0xbc/0x10c [ 71.834371][ T4706] should_failslab+0x10/0x28 [ 71.835670][ T4706] slab_pre_alloc_hook+0x64/0xec [ 71.837067][ T4706] __kmalloc_node+0xb8/0x520 [ 71.838357][ T4706] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.839945][ T4706] nbd_start_device+0x14c/0xb40 [ 71.841316][ T4706] nbd_ioctl+0x514/0xc50 [ 71.842535][ T4706] blkdev_ioctl+0x5f8/0xbb8 [ 71.843760][ T4706] block_ioctl+0xa4/0x118 [ 71.844944][ T4706] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.846354][ T4706] invoke_syscall+0x98/0x2b8 [ 71.847674][ T4706] el0_svc_common+0x138/0x258 [ 71.849001][ T4706] do_el0_svc+0x58/0x14c [ 71.850267][ T4706] el0_svc+0x78/0x1e0 [ 71.851439][ T4706] el0t_64_sync_handler+0xcc/0xe4 [ 71.852832][ T4706] el0t_64_sync+0x1a0/0x1a4 [ 71.855263][ T4721] block nbd4: shutting down sockets [ 71.864424][ T4708] FAULT_INJECTION: forcing a failure. [ 71.864424][ T4708] name failslab, interval 1, probability 0, space 0, times 0 [ 71.878103][ T4715] FAULT_INJECTION: forcing a failure. [ 71.878103][ T4715] name failslab, interval 1, probability 0, space 0, times 0 [ 71.884377][ T4715] CPU: 1 PID: 4715 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 71.886962][ T4715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.889818][ T4715] Call trace: [ 71.890731][ T4715] dump_backtrace+0x0/0x43c [ 71.892084][ T4715] show_stack+0x2c/0x3c [ 71.893318][ T4715] __dump_stack+0x30/0x40 [ 71.894562][ T4715] dump_stack_lvl+0xf8/0x160 [ 71.895832][ T4715] dump_stack+0x1c/0x5c [ 71.896977][ T4715] should_fail+0x3c0/0x51c [ 71.898213][ T4715] __should_failslab+0xbc/0x10c [ 71.899577][ T4715] should_failslab+0x10/0x28 [ 71.900827][ T4715] slab_pre_alloc_hook+0x64/0xec [ 71.902182][ T4715] __kmalloc_node+0xb8/0x520 [ 71.903494][ T4715] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.904997][ T4715] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.906576][ T4715] nbd_start_device+0x14c/0xb40 [ 71.907968][ T4715] nbd_ioctl+0x514/0xc50 [ 71.909161][ T4715] blkdev_ioctl+0x5f8/0xbb8 [ 71.910432][ T4715] block_ioctl+0xa4/0x118 [ 71.911672][ T4715] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.913109][ T4715] invoke_syscall+0x98/0x2b8 [ 71.914405][ T4715] el0_svc_common+0x138/0x258 [ 71.915710][ T4715] do_el0_svc+0x58/0x14c [ 71.916897][ T4715] el0_svc+0x78/0x1e0 [ 71.917991][ T4715] el0t_64_sync_handler+0xcc/0xe4 [ 71.919403][ T4715] el0t_64_sync+0x1a0/0x1a4 [ 71.933375][ T4708] CPU: 0 PID: 4708 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 71.935881][ T4708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 71.938734][ T4708] Call trace: [ 71.939669][ T4708] dump_backtrace+0x0/0x43c [ 71.940998][ T4708] show_stack+0x2c/0x3c [ 71.942179][ T4708] __dump_stack+0x30/0x40 [ 71.943495][ T4708] dump_stack_lvl+0xf8/0x160 [ 71.944233][ T4715] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.944750][ T4708] dump_stack+0x1c/0x5c [ 71.947854][ T4708] should_fail+0x3c0/0x51c [ 71.949078][ T4708] __should_failslab+0xbc/0x10c [ 71.950499][ T4708] should_failslab+0x10/0x28 [ 71.951856][ T4708] slab_pre_alloc_hook+0x64/0xec [ 71.953253][ T4708] __kmalloc_node+0xb8/0x520 [ 71.954531][ T4708] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.956065][ T4708] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.957725][ T4708] nbd_start_device+0x14c/0xb40 [ 71.959221][ T4708] nbd_ioctl+0x514/0xc50 [ 71.960459][ T4708] blkdev_ioctl+0x5f8/0xbb8 [ 71.961722][ T4708] block_ioctl+0xa4/0x118 [ 71.962932][ T4708] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.964326][ T4708] invoke_syscall+0x98/0x2b8 [ 71.965790][ T4708] el0_svc_common+0x138/0x258 [ 71.967164][ T4708] do_el0_svc+0x58/0x14c [ 71.968446][ T4708] el0_svc+0x78/0x1e0 [ 71.969645][ T4708] el0t_64_sync_handler+0xcc/0xe4 [ 71.971072][ T4708] el0t_64_sync+0x1a0/0x1a4 [ 72.001909][ T4721] FAULT_INJECTION: forcing a failure. [ 72.001909][ T4721] name failslab, interval 1, probability 0, space 0, times 0 [ 72.044215][ T4721] CPU: 0 PID: 4721 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 72.046666][ T4721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.049617][ T4721] Call trace: [ 72.050511][ T4721] dump_backtrace+0x0/0x43c [ 72.051797][ T4721] show_stack+0x2c/0x3c [ 72.053013][ T4721] __dump_stack+0x30/0x40 [ 72.054231][ T4721] dump_stack_lvl+0xf8/0x160 [ 72.055593][ T4721] dump_stack+0x1c/0x5c [ 72.056819][ T4721] should_fail+0x3c0/0x51c [ 72.058058][ T4721] __should_failslab+0xbc/0x10c [ 72.059349][ T4721] should_failslab+0x10/0x28 [ 72.060635][ T4721] slab_pre_alloc_hook+0x64/0xec [ 72.062037][ T4721] __kmalloc_node+0xb8/0x520 [ 72.063446][ T4721] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.064980][ T4721] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.066647][ T4721] nbd_start_device+0x14c/0xb40 [ 72.067993][ T4721] nbd_ioctl+0x514/0xc50 [ 72.069228][ T4721] blkdev_ioctl+0x5f8/0xbb8 [ 72.070575][ T4721] block_ioctl+0xa4/0x118 [ 72.071762][ T4721] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.073174][ T4721] invoke_syscall+0x98/0x2b8 [ 72.074441][ T4721] el0_svc_common+0x138/0x258 [ 72.075764][ T4721] do_el0_svc+0x58/0x14c [ 72.077005][ T4721] el0_svc+0x78/0x1e0 [ 72.078108][ T4721] el0t_64_sync_handler+0xcc/0xe4 [ 72.079578][ T4721] el0t_64_sync+0x1a0/0x1a4 [ 72.112216][ T4735] block nbd1: Device being setup by another task [ 72.114308][ T4708] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.114705][ T4730] block nbd1: shutting down sockets [ 72.121903][ T4721] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.124524][ T4730] FAULT_INJECTION: forcing a failure. [ 72.124524][ T4730] name failslab, interval 1, probability 0, space 0, times 0 [ 72.137367][ T4730] CPU: 1 PID: 4730 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 72.139887][ T4730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.142797][ T4730] Call trace: [ 72.143713][ T4730] dump_backtrace+0x0/0x43c [ 72.144977][ T4730] show_stack+0x2c/0x3c [ 72.146117][ T4730] __dump_stack+0x30/0x40 [ 72.147404][ T4730] dump_stack_lvl+0xf8/0x160 [ 72.148712][ T4730] dump_stack+0x1c/0x5c [ 72.149882][ T4730] should_fail+0x3c0/0x51c [ 72.151133][ T4730] __should_failslab+0xbc/0x10c [ 72.152612][ T4730] should_failslab+0x10/0x28 [ 72.153943][ T4730] slab_pre_alloc_hook+0x64/0xec [ 72.155321][ T4730] kmem_cache_alloc+0x94/0x3e4 [ 72.156679][ T4730] new_inode_pseudo+0x10c/0x1fc [ 72.158035][ T4730] new_inode+0x38/0x174 [ 72.159224][ T4730] debugfs_create_dir+0xec/0x3f4 [ 72.160657][ T4730] nbd_start_device+0x3c8/0xb40 [ 72.161974][ T4730] nbd_ioctl+0x514/0xc50 [ 72.163111][ T4730] blkdev_ioctl+0x5f8/0xbb8 [ 72.164397][ T4730] block_ioctl+0xa4/0x118 [ 72.165636][ T4730] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.167016][ T4730] invoke_syscall+0x98/0x2b8 [ 72.168376][ T4730] el0_svc_common+0x138/0x258 [ 72.169694][ T4730] do_el0_svc+0x58/0x14c [ 72.170885][ T4730] el0_svc+0x78/0x1e0 [ 72.172080][ T4730] el0t_64_sync_handler+0xcc/0xe4 [ 72.173612][ T4730] el0t_64_sync+0x1a0/0x1a4 [ 72.228038][ T4730] debugfs: out of free dentries, can not create directory 'nbd1' [ 72.229433][ T4740] block nbd2: shutting down sockets [ 72.233621][ T4730] block nbd1: Failed to create debugfs dir for 'nbd1' [ 72.324081][ T4738] FAULT_INJECTION: forcing a failure. [ 72.324081][ T4738] name failslab, interval 1, probability 0, space 0, times 0 [ 72.329533][ T4744] block nbd3: shutting down sockets [ 72.336243][ T4742] block nbd0: shutting down sockets [ 72.341800][ T4746] block nbd4: shutting down sockets [ 72.368124][ T4738] CPU: 1 PID: 4738 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 72.370685][ T4738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.373686][ T4738] Call trace: [ 72.374684][ T4738] dump_backtrace+0x0/0x43c [ 72.376028][ T4738] show_stack+0x2c/0x3c [ 72.377204][ T4738] __dump_stack+0x30/0x40 [ 72.378544][ T4738] dump_stack_lvl+0xf8/0x160 [ 72.379893][ T4738] dump_stack+0x1c/0x5c [ 72.381128][ T4738] should_fail+0x3c0/0x51c [ 72.382419][ T4738] __should_failslab+0xbc/0x10c [ 72.383836][ T4738] should_failslab+0x10/0x28 [ 72.385159][ T4738] slab_pre_alloc_hook+0x64/0xec [ 72.386606][ T4738] __kmalloc_node+0xb8/0x520 [ 72.387903][ T4738] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.389490][ T4738] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.391106][ T4738] nbd_start_device+0x14c/0xb40 [ 72.392501][ T4738] nbd_ioctl+0x514/0xc50 [ 72.393721][ T4738] blkdev_ioctl+0x5f8/0xbb8 [ 72.395019][ T4738] block_ioctl+0xa4/0x118 [ 72.396193][ T4738] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.397642][ T4738] invoke_syscall+0x98/0x2b8 [ 72.398958][ T4738] el0_svc_common+0x138/0x258 [ 72.400285][ T4738] do_el0_svc+0x58/0x14c [ 72.401536][ T4738] el0_svc+0x78/0x1e0 [ 72.402643][ T4738] el0t_64_sync_handler+0xcc/0xe4 [ 72.404036][ T4738] el0t_64_sync+0x1a0/0x1a4 [ 72.410571][ T4746] FAULT_INJECTION: forcing a failure. [ 72.410571][ T4746] name failslab, interval 1, probability 0, space 0, times 0 [ 72.414218][ T4746] CPU: 1 PID: 4746 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 72.416599][ T4746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.419451][ T4746] Call trace: [ 72.420302][ T4746] dump_backtrace+0x0/0x43c [ 72.421656][ T4746] show_stack+0x2c/0x3c [ 72.422936][ T4746] __dump_stack+0x30/0x40 [ 72.424202][ T4746] dump_stack_lvl+0xf8/0x160 [ 72.425556][ T4746] dump_stack+0x1c/0x5c [ 72.426707][ T4746] should_fail+0x3c0/0x51c [ 72.427964][ T4746] __should_failslab+0xbc/0x10c [ 72.429360][ T4746] should_failslab+0x10/0x28 [ 72.429821][ T4742] FAULT_INJECTION: forcing a failure. [ 72.429821][ T4742] name failslab, interval 1, probability 0, space 0, times 0 [ 72.430748][ T4746] slab_pre_alloc_hook+0x64/0xec [ 72.430767][ T4746] __kmalloc_node+0xb8/0x520 [ 72.437042][ T4746] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.438576][ T4746] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.440228][ T4746] nbd_start_device+0x14c/0xb40 [ 72.441604][ T4746] nbd_ioctl+0x514/0xc50 [ 72.442788][ T4746] blkdev_ioctl+0x5f8/0xbb8 [ 72.444120][ T4746] block_ioctl+0xa4/0x118 [ 72.445358][ T4746] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.446809][ T4746] invoke_syscall+0x98/0x2b8 [ 72.448088][ T4746] el0_svc_common+0x138/0x258 [ 72.449471][ T4746] do_el0_svc+0x58/0x14c [ 72.450753][ T4746] el0_svc+0x78/0x1e0 [ 72.451905][ T4746] el0t_64_sync_handler+0xcc/0xe4 [ 72.453491][ T4746] el0t_64_sync+0x1a0/0x1a4 [ 72.454771][ T4742] CPU: 0 PID: 4742 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 72.457218][ T4742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.460239][ T4742] Call trace: [ 72.461070][ T4744] FAULT_INJECTION: forcing a failure. [ 72.461070][ T4744] name failslab, interval 1, probability 0, space 0, times 0 [ 72.461136][ T4742] dump_backtrace+0x0/0x43c [ 72.465987][ T4742] show_stack+0x2c/0x3c [ 72.467169][ T4742] __dump_stack+0x30/0x40 [ 72.468414][ T4742] dump_stack_lvl+0xf8/0x160 [ 72.469765][ T4742] dump_stack+0x1c/0x5c [ 72.471023][ T4742] should_fail+0x3c0/0x51c [ 72.472225][ T4742] __should_failslab+0xbc/0x10c [ 72.473605][ T4742] should_failslab+0x10/0x28 [ 72.474866][ T4742] slab_pre_alloc_hook+0x64/0xec [ 72.476311][ T4742] __kmalloc_node+0xb8/0x520 [ 72.477726][ T4742] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.479295][ T4742] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.481003][ T4742] nbd_start_device+0x14c/0xb40 [ 72.482389][ T4742] nbd_ioctl+0x514/0xc50 [ 72.483671][ T4742] blkdev_ioctl+0x5f8/0xbb8 [ 72.484915][ T4742] block_ioctl+0xa4/0x118 [ 72.486183][ T4742] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.487639][ T4742] invoke_syscall+0x98/0x2b8 [ 72.488991][ T4742] el0_svc_common+0x138/0x258 [ 72.490357][ T4742] do_el0_svc+0x58/0x14c [ 72.491650][ T4742] el0_svc+0x78/0x1e0 [ 72.492895][ T4742] el0t_64_sync_handler+0xcc/0xe4 [ 72.494282][ T4742] el0t_64_sync+0x1a0/0x1a4 [ 72.496713][ T4750] block nbd1: shutting down sockets [ 72.497004][ T4744] CPU: 1 PID: 4744 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 72.500497][ T4744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.503272][ T4744] Call trace: [ 72.504198][ T4744] dump_backtrace+0x0/0x43c [ 72.505452][ T4744] show_stack+0x2c/0x3c [ 72.506575][ T4744] __dump_stack+0x30/0x40 [ 72.507837][ T4744] dump_stack_lvl+0xf8/0x160 [ 72.509182][ T4744] dump_stack+0x1c/0x5c [ 72.510314][ T4744] should_fail+0x3c0/0x51c [ 72.511536][ T4744] __should_failslab+0xbc/0x10c [ 72.512909][ T4744] should_failslab+0x10/0x28 [ 72.514229][ T4744] slab_pre_alloc_hook+0x64/0xec [ 72.515666][ T4744] __kmalloc_node+0xb8/0x520 [ 72.516973][ T4744] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.518482][ T4744] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.520095][ T4742] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.521900][ T4744] nbd_start_device+0x14c/0xb40 [ 72.523240][ T4744] nbd_ioctl+0x514/0xc50 [ 72.524505][ T4744] blkdev_ioctl+0x5f8/0xbb8 [ 72.525799][ T4744] block_ioctl+0xa4/0x118 [ 72.526962][ T4744] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.528386][ T4744] invoke_syscall+0x98/0x2b8 [ 72.529696][ T4744] el0_svc_common+0x138/0x258 [ 72.531055][ T4744] do_el0_svc+0x58/0x14c [ 72.532231][ T4744] el0_svc+0x78/0x1e0 [ 72.533409][ T4744] el0t_64_sync_handler+0xcc/0xe4 [ 72.534856][ T4744] el0t_64_sync+0x1a0/0x1a4 [ 72.588029][ T4738] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.602662][ T4750] FAULT_INJECTION: forcing a failure. [ 72.602662][ T4750] name failslab, interval 1, probability 0, space 0, times 0 [ 72.633675][ T4750] CPU: 0 PID: 4750 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 72.636199][ T4750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.639112][ T4750] Call trace: [ 72.640066][ T4750] dump_backtrace+0x0/0x43c [ 72.640741][ T4746] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.641322][ T4750] show_stack+0x2c/0x3c [ 72.644394][ T4750] __dump_stack+0x30/0x40 [ 72.645644][ T4750] dump_stack_lvl+0xf8/0x160 [ 72.646953][ T4750] dump_stack+0x1c/0x5c [ 72.648182][ T4750] should_fail+0x3c0/0x51c [ 72.649409][ T4750] __should_failslab+0xbc/0x10c [ 72.650849][ T4750] should_failslab+0x10/0x28 [ 72.652148][ T4750] slab_pre_alloc_hook+0x64/0xec [ 72.653525][ T4750] __kmalloc_node+0xb8/0x520 [ 72.654775][ T4750] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.656317][ T4750] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.658007][ T4750] nbd_start_device+0x14c/0xb40 [ 72.659358][ T4750] nbd_ioctl+0x514/0xc50 [ 72.660611][ T4750] blkdev_ioctl+0x5f8/0xbb8 [ 72.661875][ T4750] block_ioctl+0xa4/0x118 [ 72.663112][ T4750] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.664499][ T4750] invoke_syscall+0x98/0x2b8 [ 72.665848][ T4750] el0_svc_common+0x138/0x258 [ 72.667140][ T4750] do_el0_svc+0x58/0x14c [ 72.668389][ T4750] el0_svc+0x78/0x1e0 [ 72.669487][ T4750] el0t_64_sync_handler+0xcc/0xe4 [ 72.670906][ T4750] el0t_64_sync+0x1a0/0x1a4 [ 72.679124][ T4744] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.704180][ T4750] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.761989][ T4765] block nbd0: shutting down sockets [ 72.811680][ T4763] FAULT_INJECTION: forcing a failure. [ 72.811680][ T4763] name failslab, interval 1, probability 0, space 0, times 0 [ 72.822761][ T4763] CPU: 1 PID: 4763 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 72.825287][ T4763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.828187][ T4763] Call trace: [ 72.829095][ T4763] dump_backtrace+0x0/0x43c [ 72.830403][ T4763] show_stack+0x2c/0x3c [ 72.831567][ T4763] __dump_stack+0x30/0x40 [ 72.832809][ T4763] dump_stack_lvl+0xf8/0x160 [ 72.834200][ T4763] dump_stack+0x1c/0x5c [ 72.835390][ T4763] should_fail+0x3c0/0x51c [ 72.836596][ T4763] __should_failslab+0xbc/0x10c [ 72.838039][ T4763] should_failslab+0x10/0x28 [ 72.839347][ T4763] slab_pre_alloc_hook+0x64/0xec [ 72.840748][ T4763] __kmalloc_node+0xb8/0x520 [ 72.842007][ T4763] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.843530][ T4763] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.845106][ T4763] nbd_start_device+0x14c/0xb40 [ 72.846472][ T4763] nbd_ioctl+0x514/0xc50 [ 72.847690][ T4763] blkdev_ioctl+0x5f8/0xbb8 [ 72.848989][ T4763] block_ioctl+0xa4/0x118 [ 72.850193][ T4763] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.851662][ T4763] invoke_syscall+0x98/0x2b8 [ 72.852963][ T4763] el0_svc_common+0x138/0x258 [ 72.854297][ T4763] do_el0_svc+0x58/0x14c [ 72.855479][ T4763] el0_svc+0x78/0x1e0 [ 72.856600][ T4763] el0t_64_sync_handler+0xcc/0xe4 [ 72.858014][ T4763] el0t_64_sync+0x1a0/0x1a4 [ 72.885695][ T4777] block nbd3: shutting down sockets [ 72.887621][ T4778] block nbd4: shutting down sockets [ 72.887839][ T4774] block nbd2: shutting down sockets [ 72.931658][ T4763] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.937609][ T4772] FAULT_INJECTION: forcing a failure. [ 72.937609][ T4772] name failslab, interval 1, probability 0, space 0, times 0 [ 72.942452][ T4773] FAULT_INJECTION: forcing a failure. [ 72.942452][ T4773] name failslab, interval 1, probability 0, space 0, times 0 [ 72.950475][ T4768] FAULT_INJECTION: forcing a failure. [ 72.950475][ T4768] name failslab, interval 1, probability 0, space 0, times 0 [ 72.953960][ T4768] CPU: 1 PID: 4768 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 72.956420][ T4768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.959242][ T4768] Call trace: [ 72.960245][ T4768] dump_backtrace+0x0/0x43c [ 72.961579][ T4768] show_stack+0x2c/0x3c [ 72.962765][ T4768] __dump_stack+0x30/0x40 [ 72.964045][ T4768] dump_stack_lvl+0xf8/0x160 [ 72.965351][ T4768] dump_stack+0x1c/0x5c [ 72.966536][ T4768] should_fail+0x3c0/0x51c [ 72.967746][ T4768] __should_failslab+0xbc/0x10c [ 72.969090][ T4768] should_failslab+0x10/0x28 [ 72.970381][ T4768] slab_pre_alloc_hook+0x64/0xec [ 72.971832][ T4768] __kmalloc_node+0xb8/0x520 [ 72.973114][ T4768] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.974602][ T4768] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.976228][ T4768] nbd_start_device+0x14c/0xb40 [ 72.977637][ T4768] nbd_ioctl+0x514/0xc50 [ 72.978797][ T4768] blkdev_ioctl+0x5f8/0xbb8 [ 72.980101][ T4768] block_ioctl+0xa4/0x118 [ 72.981350][ T4768] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.982795][ T4768] invoke_syscall+0x98/0x2b8 [ 72.984173][ T4768] el0_svc_common+0x138/0x258 [ 72.985541][ T4768] do_el0_svc+0x58/0x14c [ 72.986800][ T4768] el0_svc+0x78/0x1e0 [ 72.987927][ T4768] el0t_64_sync_handler+0xcc/0xe4 [ 72.989325][ T4768] el0t_64_sync+0x1a0/0x1a4 [ 72.994471][ T4772] CPU: 1 PID: 4772 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 72.996961][ T4772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 72.999786][ T4772] Call trace: [ 73.000690][ T4772] dump_backtrace+0x0/0x43c [ 73.001978][ T4772] show_stack+0x2c/0x3c [ 73.003111][ T4772] __dump_stack+0x30/0x40 [ 73.004389][ T4772] dump_stack_lvl+0xf8/0x160 [ 73.005729][ T4772] dump_stack+0x1c/0x5c [ 73.007011][ T4772] should_fail+0x3c0/0x51c [ 73.008236][ T4772] __should_failslab+0xbc/0x10c [ 73.009676][ T4772] should_failslab+0x10/0x28 [ 73.011059][ T4772] slab_pre_alloc_hook+0x64/0xec [ 73.012487][ T4772] __kmalloc_node+0xb8/0x520 [ 73.013809][ T4772] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.015316][ T4772] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.016953][ T4772] nbd_start_device+0x14c/0xb40 [ 73.018390][ T4772] nbd_ioctl+0x514/0xc50 [ 73.019562][ T4772] blkdev_ioctl+0x5f8/0xbb8 [ 73.020773][ T4772] block_ioctl+0xa4/0x118 [ 73.022031][ T4772] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.023398][ T4772] invoke_syscall+0x98/0x2b8 [ 73.024666][ T4772] el0_svc_common+0x138/0x258 [ 73.025968][ T4772] do_el0_svc+0x58/0x14c [ 73.027129][ T4772] el0_svc+0x78/0x1e0 [ 73.028231][ T4772] el0t_64_sync_handler+0xcc/0xe4 [ 73.029737][ T4772] el0t_64_sync+0x1a0/0x1a4 [ 73.049203][ T4773] CPU: 1 PID: 4773 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 73.051718][ T4773] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.054492][ T4773] Call trace: [ 73.055394][ T4773] dump_backtrace+0x0/0x43c [ 73.056635][ T4773] show_stack+0x2c/0x3c [ 73.057834][ T4773] __dump_stack+0x30/0x40 [ 73.059053][ T4773] dump_stack_lvl+0xf8/0x160 [ 73.060412][ T4773] dump_stack+0x1c/0x5c [ 73.061602][ T4773] should_fail+0x3c0/0x51c [ 73.062825][ T4773] __should_failslab+0xbc/0x10c [ 73.064254][ T4773] should_failslab+0x10/0x28 [ 73.065557][ T4773] slab_pre_alloc_hook+0x64/0xec [ 73.067015][ T4773] __kmalloc_node+0xb8/0x520 [ 73.068321][ T4773] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.069846][ T4773] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.071458][ T4773] nbd_start_device+0x14c/0xb40 [ 73.072821][ T4773] nbd_ioctl+0x514/0xc50 [ 73.074010][ T4773] blkdev_ioctl+0x5f8/0xbb8 [ 73.075309][ T4773] block_ioctl+0xa4/0x118 [ 73.076532][ T4773] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.077937][ T4773] invoke_syscall+0x98/0x2b8 [ 73.079187][ T4773] el0_svc_common+0x138/0x258 [ 73.080479][ T4773] do_el0_svc+0x58/0x14c [ 73.081674][ T4773] el0_svc+0x78/0x1e0 [ 73.082776][ T4773] el0t_64_sync_handler+0xcc/0xe4 [ 73.084261][ T4773] el0t_64_sync+0x1a0/0x1a4 [ 73.096540][ T4768] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.097577][ T4781] block nbd1: shutting down sockets [ 73.102170][ T4773] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.115254][ T4772] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.156154][ T4783] block nbd0: shutting down sockets [ 73.173634][ T4780] FAULT_INJECTION: forcing a failure. [ 73.173634][ T4780] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 73.192521][ T4780] CPU: 0 PID: 4780 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 73.195046][ T4780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.197868][ T4780] Call trace: [ 73.198777][ T4780] dump_backtrace+0x0/0x43c [ 73.200078][ T4780] show_stack+0x2c/0x3c [ 73.201257][ T4780] __dump_stack+0x30/0x40 [ 73.202453][ T4780] dump_stack_lvl+0xf8/0x160 [ 73.203805][ T4780] dump_stack+0x1c/0x5c [ 73.204989][ T4780] should_fail+0x3c0/0x51c [ 73.206255][ T4780] should_fail_alloc_page+0x74/0xa8 [ 73.207695][ T4780] prepare_alloc_pages+0x160/0x460 [ 73.209116][ T4780] __alloc_pages+0x108/0x470 [ 73.210383][ T4780] alloc_pages+0x34c/0x5c0 [ 73.211619][ T4780] new_slab+0xe0/0x55c [ 73.212791][ T4780] ___slab_alloc+0x6c0/0xda8 [ 73.214038][ T4780] __slab_alloc+0x68/0xc0 [ 73.215248][ T4780] __kmalloc_node+0x310/0x520 [ 73.216579][ T4780] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 73.218157][ T4780] nbd_start_device+0x14c/0xb40 [ 73.219498][ T4780] nbd_ioctl+0x514/0xc50 [ 73.220761][ T4780] blkdev_ioctl+0x5f8/0xbb8 [ 73.222040][ T4780] block_ioctl+0xa4/0x118 [ 73.223291][ T4780] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.224756][ T4780] invoke_syscall+0x98/0x2b8 [ 73.226023][ T4780] el0_svc_common+0x138/0x258 [ 73.227352][ T4780] do_el0_svc+0x58/0x14c [ 73.228578][ T4780] el0_svc+0x78/0x1e0 [ 73.229775][ T4780] el0t_64_sync_handler+0xcc/0xe4 [ 73.231172][ T4780] el0t_64_sync+0x1a0/0x1a4 [ 73.257456][ T4783] FAULT_INJECTION: forcing a failure. [ 73.257456][ T4783] name failslab, interval 1, probability 0, space 0, times 0 [ 73.277574][ T4783] CPU: 1 PID: 4783 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 73.280026][ T4783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.282953][ T4783] Call trace: [ 73.284001][ T4783] dump_backtrace+0x0/0x43c [ 73.285357][ T4783] show_stack+0x2c/0x3c [ 73.286529][ T4783] __dump_stack+0x30/0x40 [ 73.287777][ T4783] dump_stack_lvl+0xf8/0x160 [ 73.289155][ T4783] dump_stack+0x1c/0x5c [ 73.290422][ T4783] should_fail+0x3c0/0x51c [ 73.291635][ T4783] __should_failslab+0xbc/0x10c [ 73.293047][ T4783] should_failslab+0x10/0x28 [ 73.294283][ T4783] slab_pre_alloc_hook+0x64/0xec [ 73.295714][ T4783] __kmalloc_node+0xb8/0x520 [ 73.297048][ T4783] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.298595][ T4783] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.300237][ T4783] nbd_start_device+0x14c/0xb40 [ 73.301639][ T4783] nbd_ioctl+0x514/0xc50 [ 73.302868][ T4783] blkdev_ioctl+0x5f8/0xbb8 [ 73.304180][ T4783] block_ioctl+0xa4/0x118 [ 73.305414][ T4783] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.306868][ T4783] invoke_syscall+0x98/0x2b8 [ 73.308171][ T4783] el0_svc_common+0x138/0x258 [ 73.309458][ T4783] do_el0_svc+0x58/0x14c [ 73.310735][ T4783] el0_svc+0x78/0x1e0 [ 73.311948][ T4783] el0t_64_sync_handler+0xcc/0xe4 [ 73.313384][ T4783] el0t_64_sync+0x1a0/0x1a4 [ 73.316811][ T4783] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.327977][ T4789] block nbd2: shutting down sockets [ 73.428742][ T4803] block nbd4: shutting down sockets [ 73.434185][ T4796] block nbd3: shutting down sockets [ 73.438712][ T4789] FAULT_INJECTION: forcing a failure. [ 73.438712][ T4789] name failslab, interval 1, probability 0, space 0, times 0 [ 73.461477][ T4789] CPU: 0 PID: 4789 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 73.463926][ T4789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.466736][ T4789] Call trace: [ 73.467683][ T4789] dump_backtrace+0x0/0x43c [ 73.468965][ T4789] show_stack+0x2c/0x3c [ 73.470134][ T4789] __dump_stack+0x30/0x40 [ 73.471454][ T4789] dump_stack_lvl+0xf8/0x160 [ 73.472754][ T4789] dump_stack+0x1c/0x5c [ 73.473861][ T4789] should_fail+0x3c0/0x51c [ 73.475121][ T4789] __should_failslab+0xbc/0x10c [ 73.476468][ T4789] should_failslab+0x10/0x28 [ 73.477806][ T4789] slab_pre_alloc_hook+0x64/0xec [ 73.479164][ T4789] __kmalloc_node+0xb8/0x520 [ 73.480516][ T4789] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.482028][ T4789] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.483610][ T4789] nbd_start_device+0x14c/0xb40 [ 73.484979][ T4789] nbd_ioctl+0x514/0xc50 [ 73.486225][ T4789] blkdev_ioctl+0x5f8/0xbb8 [ 73.487522][ T4789] block_ioctl+0xa4/0x118 [ 73.488832][ T4789] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.490288][ T4789] invoke_syscall+0x98/0x2b8 [ 73.491664][ T4789] el0_svc_common+0x138/0x258 [ 73.492955][ T4789] do_el0_svc+0x58/0x14c [ 73.494172][ T4789] el0_svc+0x78/0x1e0 [ 73.495248][ T4789] el0t_64_sync_handler+0xcc/0xe4 [ 73.496708][ T4789] el0t_64_sync+0x1a0/0x1a4 [ 73.506396][ T4814] block nbd1: shutting down sockets [ 73.513219][ T4805] FAULT_INJECTION: forcing a failure. [ 73.513219][ T4805] name failslab, interval 1, probability 0, space 0, times 0 [ 73.522613][ T4805] CPU: 1 PID: 4805 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 73.525007][ T4805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.527892][ T4805] Call trace: [ 73.528798][ T4805] dump_backtrace+0x0/0x43c [ 73.530139][ T4805] show_stack+0x2c/0x3c [ 73.531311][ T4805] __dump_stack+0x30/0x40 [ 73.532539][ T4805] dump_stack_lvl+0xf8/0x160 [ 73.533888][ T4805] dump_stack+0x1c/0x5c [ 73.535011][ T4805] should_fail+0x3c0/0x51c [ 73.536264][ T4805] __should_failslab+0xbc/0x10c [ 73.537616][ T4805] should_failslab+0x10/0x28 [ 73.538878][ T4805] slab_pre_alloc_hook+0x64/0xec [ 73.540195][ T4805] kmem_cache_alloc+0x94/0x3e4 [ 73.541683][ T4805] new_inode_pseudo+0x10c/0x1fc [ 73.543094][ T4805] new_inode+0x38/0x174 [ 73.544246][ T4805] debugfs_create_dir+0xec/0x3f4 [ 73.545628][ T4805] nbd_start_device+0x3c8/0xb40 [ 73.546994][ T4805] nbd_ioctl+0x514/0xc50 [ 73.548177][ T4805] blkdev_ioctl+0x5f8/0xbb8 [ 73.549399][ T4805] block_ioctl+0xa4/0x118 [ 73.550746][ T4805] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.552144][ T4805] invoke_syscall+0x98/0x2b8 [ 73.553414][ T4805] el0_svc_common+0x138/0x258 [ 73.554788][ T4805] do_el0_svc+0x58/0x14c [ 73.555957][ T4805] el0_svc+0x78/0x1e0 [ 73.556092][ T4789] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.557130][ T4805] el0t_64_sync_handler+0xcc/0xe4 [ 73.557195][ T4805] el0t_64_sync+0x1a0/0x1a4 [ 73.591026][ T4810] FAULT_INJECTION: forcing a failure. [ 73.591026][ T4810] name failslab, interval 1, probability 0, space 0, times 0 [ 73.594677][ T4810] CPU: 1 PID: 4810 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 73.597086][ T4810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.599961][ T4810] Call trace: [ 73.600860][ T4810] dump_backtrace+0x0/0x43c [ 73.602128][ T4810] show_stack+0x2c/0x3c [ 73.603235][ T4810] __dump_stack+0x30/0x40 [ 73.604460][ T4810] dump_stack_lvl+0xf8/0x160 [ 73.605718][ T4810] dump_stack+0x1c/0x5c [ 73.606829][ T4810] should_fail+0x3c0/0x51c [ 73.608055][ T4810] __should_failslab+0xbc/0x10c [ 73.609365][ T4810] should_failslab+0x10/0x28 [ 73.610637][ T4810] slab_pre_alloc_hook+0x64/0xec [ 73.612004][ T4810] __kmalloc_node+0xb8/0x520 [ 73.613322][ T4810] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.614798][ T4810] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.616398][ T4810] nbd_start_device+0x14c/0xb40 [ 73.617828][ T4810] nbd_ioctl+0x514/0xc50 [ 73.619001][ T4810] blkdev_ioctl+0x5f8/0xbb8 [ 73.620274][ T4810] block_ioctl+0xa4/0x118 [ 73.621036][ T4805] debugfs: out of free dentries, can not create directory 'nbd1' [ 73.621500][ T4810] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.621518][ T4810] invoke_syscall+0x98/0x2b8 [ 73.621529][ T4810] el0_svc_common+0x138/0x258 [ 73.621538][ T4810] do_el0_svc+0x58/0x14c [ 73.629021][ T4810] el0_svc+0x78/0x1e0 [ 73.630177][ T4810] el0t_64_sync_handler+0xcc/0xe4 [ 73.631596][ T4810] el0t_64_sync+0x1a0/0x1a4 [ 73.638534][ T4811] FAULT_INJECTION: forcing a failure. [ 73.638534][ T4811] name failslab, interval 1, probability 0, space 0, times 0 [ 73.642187][ T4811] CPU: 1 PID: 4811 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 73.644624][ T4811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.647464][ T4811] Call trace: [ 73.648464][ T4811] dump_backtrace+0x0/0x43c [ 73.649775][ T4811] show_stack+0x2c/0x3c [ 73.650914][ T4811] __dump_stack+0x30/0x40 [ 73.652127][ T4811] dump_stack_lvl+0xf8/0x160 [ 73.653429][ T4811] dump_stack+0x1c/0x5c [ 73.654673][ T4811] should_fail+0x3c0/0x51c [ 73.655856][ T4811] __should_failslab+0xbc/0x10c [ 73.656368][ T4805] block nbd1: Failed to create debugfs dir for 'nbd1' [ 73.657302][ T4811] should_failslab+0x10/0x28 [ 73.657318][ T4811] slab_pre_alloc_hook+0x64/0xec [ 73.657328][ T4811] __kmalloc_node+0xb8/0x520 [ 73.657344][ T4811] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.664880][ T4811] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.666544][ T4811] nbd_start_device+0x14c/0xb40 [ 73.667910][ T4811] nbd_ioctl+0x514/0xc50 [ 73.669163][ T4811] blkdev_ioctl+0x5f8/0xbb8 [ 73.670421][ T4811] block_ioctl+0xa4/0x118 [ 73.671628][ T4811] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.673014][ T4811] invoke_syscall+0x98/0x2b8 [ 73.674357][ T4811] el0_svc_common+0x138/0x258 [ 73.675707][ T4811] do_el0_svc+0x58/0x14c [ 73.676974][ T4811] el0_svc+0x78/0x1e0 [ 73.678220][ T4811] el0t_64_sync_handler+0xcc/0xe4 [ 73.679657][ T4811] el0t_64_sync+0x1a0/0x1a4 [ 73.701483][ T4811] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.712788][ T4810] Increasing nr_hw_queues to 2 fails, fallback to 1 1970/01/01 00:01:13 executed programs: 48 [ 73.876763][ T4831] block nbd4: shutting down sockets [ 73.885812][ T4825] block nbd2: shutting down sockets [ 73.887982][ T4829] block nbd3: shutting down sockets [ 73.908324][ T4824] block nbd0: shutting down sockets [ 73.932882][ T4825] FAULT_INJECTION: forcing a failure. [ 73.932882][ T4825] name failslab, interval 1, probability 0, space 0, times 0 [ 73.941048][ T4829] FAULT_INJECTION: forcing a failure. [ 73.941048][ T4829] name failslab, interval 1, probability 0, space 0, times 0 [ 73.954452][ T4831] FAULT_INJECTION: forcing a failure. [ 73.954452][ T4831] name failslab, interval 1, probability 0, space 0, times 0 [ 73.962881][ T4829] CPU: 0 PID: 4829 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 73.965479][ T4829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 73.968420][ T4829] Call trace: [ 73.969340][ T4829] dump_backtrace+0x0/0x43c [ 73.970589][ T4829] show_stack+0x2c/0x3c [ 73.971766][ T4829] __dump_stack+0x30/0x40 [ 73.973065][ T4829] dump_stack_lvl+0xf8/0x160 [ 73.974386][ T4829] dump_stack+0x1c/0x5c [ 73.975568][ T4829] should_fail+0x3c0/0x51c [ 73.976837][ T4829] __should_failslab+0xbc/0x10c [ 73.978205][ T4829] should_failslab+0x10/0x28 [ 73.979545][ T4829] slab_pre_alloc_hook+0x64/0xec [ 73.980951][ T4829] __kmalloc_node+0xb8/0x520 [ 73.982352][ T4829] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 73.983983][ T4829] nbd_start_device+0x14c/0xb40 [ 73.985354][ T4829] nbd_ioctl+0x514/0xc50 [ 73.986596][ T4829] blkdev_ioctl+0x5f8/0xbb8 [ 73.987908][ T4829] block_ioctl+0xa4/0x118 [ 73.989169][ T4829] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.990525][ T4829] invoke_syscall+0x98/0x2b8 [ 73.991863][ T4829] el0_svc_common+0x138/0x258 [ 73.993208][ T4829] do_el0_svc+0x58/0x14c [ 73.994438][ T4829] el0_svc+0x78/0x1e0 [ 73.995515][ T4829] el0t_64_sync_handler+0xcc/0xe4 [ 73.996936][ T4829] el0t_64_sync+0x1a0/0x1a4 [ 74.000718][ T4831] CPU: 0 PID: 4831 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 74.003202][ T4831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.006159][ T4831] Call trace: [ 74.007104][ T4831] dump_backtrace+0x0/0x43c [ 74.008454][ T4831] show_stack+0x2c/0x3c [ 74.009395][ T4824] FAULT_INJECTION: forcing a failure. [ 74.009395][ T4824] name failslab, interval 1, probability 0, space 0, times 0 [ 74.009680][ T4831] __dump_stack+0x30/0x40 [ 74.014637][ T4831] dump_stack_lvl+0xf8/0x160 [ 74.015977][ T4831] dump_stack+0x1c/0x5c [ 74.017226][ T4831] should_fail+0x3c0/0x51c [ 74.018555][ T4831] __should_failslab+0xbc/0x10c [ 74.019919][ T4831] should_failslab+0x10/0x28 [ 74.021196][ T4831] slab_pre_alloc_hook+0x64/0xec [ 74.022577][ T4831] __kmalloc_node+0xb8/0x520 [ 74.023949][ T4831] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 74.025626][ T4831] nbd_start_device+0x14c/0xb40 [ 74.027013][ T4831] nbd_ioctl+0x514/0xc50 [ 74.028227][ T4831] blkdev_ioctl+0x5f8/0xbb8 [ 74.029482][ T4831] block_ioctl+0xa4/0x118 [ 74.030758][ T4831] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.032164][ T4831] invoke_syscall+0x98/0x2b8 [ 74.033429][ T4831] el0_svc_common+0x138/0x258 [ 74.034736][ T4831] do_el0_svc+0x58/0x14c [ 74.035928][ T4831] el0_svc+0x78/0x1e0 [ 74.037031][ T4831] el0t_64_sync_handler+0xcc/0xe4 [ 74.038570][ T4831] el0t_64_sync+0x1a0/0x1a4 [ 74.041558][ T4824] CPU: 1 PID: 4824 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 74.044067][ T4824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.046873][ T4824] Call trace: [ 74.047796][ T4824] dump_backtrace+0x0/0x43c [ 74.049045][ T4824] show_stack+0x2c/0x3c [ 74.050212][ T4824] __dump_stack+0x30/0x40 [ 74.051408][ T4824] dump_stack_lvl+0xf8/0x160 [ 74.052623][ T4824] dump_stack+0x1c/0x5c [ 74.053776][ T4824] should_fail+0x3c0/0x51c [ 74.055081][ T4824] __should_failslab+0xbc/0x10c [ 74.056494][ T4824] should_failslab+0x10/0x28 [ 74.057784][ T4824] slab_pre_alloc_hook+0x64/0xec [ 74.059144][ T4824] __kmalloc_node+0xb8/0x520 [ 74.060464][ T4824] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.062035][ T4824] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.063624][ T4824] nbd_start_device+0x14c/0xb40 [ 74.065014][ T4824] nbd_ioctl+0x514/0xc50 [ 74.066176][ T4824] blkdev_ioctl+0x5f8/0xbb8 [ 74.067477][ T4824] block_ioctl+0xa4/0x118 [ 74.068820][ T4824] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.070175][ T4824] invoke_syscall+0x98/0x2b8 [ 74.071428][ T4824] el0_svc_common+0x138/0x258 [ 74.072784][ T4824] do_el0_svc+0x58/0x14c [ 74.073954][ T4824] el0_svc+0x78/0x1e0 [ 74.075099][ T4824] el0t_64_sync_handler+0xcc/0xe4 [ 74.076522][ T4824] el0t_64_sync+0x1a0/0x1a4 [ 74.077781][ T4825] CPU: 0 PID: 4825 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 74.080283][ T4825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.080597][ T4842] block nbd1: shutting down sockets [ 74.083111][ T4825] Call trace: [ 74.083117][ T4825] dump_backtrace+0x0/0x43c [ 74.083131][ T4825] show_stack+0x2c/0x3c [ 74.083139][ T4825] __dump_stack+0x30/0x40 [ 74.086107][ T4846] FAULT_INJECTION: forcing a failure. [ 74.086107][ T4846] name failslab, interval 1, probability 0, space 0, times 0 [ 74.086597][ T4825] dump_stack_lvl+0xf8/0x160 [ 74.086613][ T4825] dump_stack+0x1c/0x5c [ 74.086622][ T4825] should_fail+0x3c0/0x51c [ 74.086632][ T4825] __should_failslab+0xbc/0x10c [ 74.086641][ T4825] should_failslab+0x10/0x28 [ 74.086651][ T4825] slab_pre_alloc_hook+0x64/0xec [ 74.100568][ T4825] __kmalloc_node+0xb8/0x520 [ 74.101845][ T4825] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.103293][ T4825] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.105001][ T4825] nbd_start_device+0x14c/0xb40 [ 74.106417][ T4825] nbd_ioctl+0x514/0xc50 [ 74.107607][ T4825] blkdev_ioctl+0x5f8/0xbb8 [ 74.108983][ T4825] block_ioctl+0xa4/0x118 [ 74.110179][ T4825] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.111592][ T4825] invoke_syscall+0x98/0x2b8 [ 74.113013][ T4825] el0_svc_common+0x138/0x258 [ 74.114350][ T4825] do_el0_svc+0x58/0x14c [ 74.115532][ T4825] el0_svc+0x78/0x1e0 [ 74.116709][ T4825] el0t_64_sync_handler+0xcc/0xe4 [ 74.118135][ T4825] el0t_64_sync+0x1a0/0x1a4 [ 74.119416][ T4846] CPU: 1 PID: 4846 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 74.121830][ T4846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.124643][ T4846] Call trace: [ 74.125528][ T4846] dump_backtrace+0x0/0x43c [ 74.126782][ T4846] show_stack+0x2c/0x3c [ 74.127928][ T4846] __dump_stack+0x30/0x40 [ 74.129087][ T4846] dump_stack_lvl+0xf8/0x160 [ 74.130355][ T4846] dump_stack+0x1c/0x5c [ 74.131630][ T4846] should_fail+0x3c0/0x51c [ 74.132871][ T4846] __should_failslab+0xbc/0x10c [ 74.134222][ T4846] should_failslab+0x10/0x28 [ 74.135524][ T4846] slab_pre_alloc_hook+0x64/0xec [ 74.136877][ T4846] kmem_cache_alloc+0x94/0x3e4 [ 74.138160][ T4846] radix_tree_node_alloc+0x180/0x340 [ 74.139596][ T4846] idr_get_free+0x240/0x8fc [ 74.140825][ T4846] idr_alloc_cyclic+0x154/0x468 [ 74.142227][ T4846] __kernfs_new_node+0x120/0x5d8 [ 74.143603][ T4846] kernfs_new_node+0x11c/0x240 [ 74.144979][ T4846] __kernfs_create_file+0x60/0x2d4 [ 74.146422][ T4846] sysfs_add_file_mode_ns+0x2c4/0x3a4 [ 74.147857][ T4846] sysfs_create_file_ns+0x104/0x188 [ 74.149330][ T4846] device_create_file+0xfc/0x1b0 [ 74.150780][ T4846] nbd_start_device+0x350/0xb40 [ 74.152086][ T4846] nbd_ioctl+0x514/0xc50 [ 74.153339][ T4846] blkdev_ioctl+0x5f8/0xbb8 [ 74.154659][ T4846] block_ioctl+0xa4/0x118 [ 74.155888][ T4846] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.157310][ T4846] invoke_syscall+0x98/0x2b8 [ 74.158581][ T4846] el0_svc_common+0x138/0x258 [ 74.159888][ T4846] do_el0_svc+0x58/0x14c [ 74.161090][ T4846] el0_svc+0x78/0x1e0 [ 74.162166][ T4846] el0t_64_sync_handler+0xcc/0xe4 [ 74.163595][ T4846] el0t_64_sync+0x1a0/0x1a4 [ 74.182887][ T4824] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.285417][ T4825] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.356875][ T4854] block nbd0: shutting down sockets [ 74.399566][ T4854] FAULT_INJECTION: forcing a failure. [ 74.399566][ T4854] name failslab, interval 1, probability 0, space 0, times 0 [ 74.408939][ T4854] CPU: 0 PID: 4854 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 74.411444][ T4854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.414394][ T4854] Call trace: [ 74.415371][ T4854] dump_backtrace+0x0/0x43c [ 74.416704][ T4854] show_stack+0x2c/0x3c [ 74.417828][ T4854] __dump_stack+0x30/0x40 [ 74.419109][ T4854] dump_stack_lvl+0xf8/0x160 [ 74.420464][ T4854] dump_stack+0x1c/0x5c [ 74.421609][ T4854] should_fail+0x3c0/0x51c [ 74.422882][ T4854] __should_failslab+0xbc/0x10c [ 74.424186][ T4854] should_failslab+0x10/0x28 [ 74.425543][ T4854] slab_pre_alloc_hook+0x64/0xec [ 74.426978][ T4854] __kmalloc_node+0xb8/0x520 [ 74.428340][ T4854] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.429902][ T4854] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.431523][ T4854] nbd_start_device+0x14c/0xb40 [ 74.432904][ T4854] nbd_ioctl+0x514/0xc50 [ 74.434131][ T4854] blkdev_ioctl+0x5f8/0xbb8 [ 74.435405][ T4854] block_ioctl+0xa4/0x118 [ 74.436658][ T4854] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.438000][ T4854] invoke_syscall+0x98/0x2b8 [ 74.439283][ T4854] el0_svc_common+0x138/0x258 [ 74.440612][ T4854] do_el0_svc+0x58/0x14c [ 74.441832][ T4854] el0_svc+0x78/0x1e0 [ 74.442957][ T4854] el0t_64_sync_handler+0xcc/0xe4 [ 74.444339][ T4854] el0t_64_sync+0x1a0/0x1a4 [ 74.459621][ T4860] block nbd3: shutting down sockets [ 74.465378][ T4864] block nbd1: shutting down sockets [ 74.468066][ T4855] FAULT_INJECTION: forcing a failure. [ 74.468066][ T4855] name failslab, interval 1, probability 0, space 0, times 0 [ 74.474537][ T4855] CPU: 1 PID: 4855 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 74.476927][ T4855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.479720][ T4855] Call trace: [ 74.480614][ T4855] dump_backtrace+0x0/0x43c [ 74.481941][ T4855] show_stack+0x2c/0x3c [ 74.483091][ T4855] __dump_stack+0x30/0x40 [ 74.484389][ T4855] dump_stack_lvl+0xf8/0x160 [ 74.485732][ T4855] dump_stack+0x1c/0x5c [ 74.486915][ T4855] should_fail+0x3c0/0x51c [ 74.488129][ T4855] __should_failslab+0xbc/0x10c [ 74.489549][ T4855] should_failslab+0x10/0x28 [ 74.490856][ T4855] slab_pre_alloc_hook+0x64/0xec [ 74.492273][ T4855] kmem_cache_alloc+0x94/0x3e4 [ 74.493679][ T4855] new_inode_pseudo+0x10c/0x1fc [ 74.495091][ T4855] new_inode+0x38/0x174 [ 74.496265][ T4855] debugfs_create_dir+0xec/0x3f4 [ 74.497647][ T4855] nbd_start_device+0x3c8/0xb40 [ 74.498973][ T4855] nbd_ioctl+0x514/0xc50 [ 74.500132][ T4855] blkdev_ioctl+0x5f8/0xbb8 [ 74.501412][ T4855] block_ioctl+0xa4/0x118 [ 74.502682][ T4855] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.504084][ T4855] invoke_syscall+0x98/0x2b8 [ 74.505430][ T4855] el0_svc_common+0x138/0x258 [ 74.506707][ T4855] do_el0_svc+0x58/0x14c [ 74.507984][ T4855] el0_svc+0x78/0x1e0 [ 74.509088][ T4855] el0t_64_sync_handler+0xcc/0xe4 [ 74.510499][ T4855] el0t_64_sync+0x1a0/0x1a4 [ 74.513461][ T4862] block nbd2: shutting down sockets [ 74.516495][ T4854] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.523557][ T4866] block nbd4: shutting down sockets [ 74.529839][ T4860] FAULT_INJECTION: forcing a failure. [ 74.529839][ T4860] name failslab, interval 1, probability 0, space 0, times 0 [ 74.544415][ T4860] CPU: 0 PID: 4860 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 74.546876][ T4860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.549742][ T4860] Call trace: [ 74.550685][ T4860] dump_backtrace+0x0/0x43c [ 74.551957][ T4860] show_stack+0x2c/0x3c [ 74.553179][ T4860] __dump_stack+0x30/0x40 [ 74.554421][ T4860] dump_stack_lvl+0xf8/0x160 [ 74.555739][ T4860] dump_stack+0x1c/0x5c [ 74.557000][ T4860] should_fail+0x3c0/0x51c [ 74.558150][ T4860] __should_failslab+0xbc/0x10c [ 74.559477][ T4860] should_failslab+0x10/0x28 [ 74.560714][ T4860] slab_pre_alloc_hook+0x64/0xec [ 74.562083][ T4860] __kmalloc_node+0xb8/0x520 [ 74.563402][ T4860] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.564977][ T4860] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.566626][ T4860] nbd_start_device+0x14c/0xb40 [ 74.567987][ T4860] nbd_ioctl+0x514/0xc50 [ 74.569176][ T4860] blkdev_ioctl+0x5f8/0xbb8 [ 74.570508][ T4860] block_ioctl+0xa4/0x118 [ 74.571758][ T4860] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.573136][ T4860] invoke_syscall+0x98/0x2b8 [ 74.574496][ T4860] el0_svc_common+0x138/0x258 [ 74.575937][ T4860] do_el0_svc+0x58/0x14c [ 74.577254][ T4860] el0_svc+0x78/0x1e0 [ 74.578406][ T4860] el0t_64_sync_handler+0xcc/0xe4 [ 74.579842][ T4860] el0t_64_sync+0x1a0/0x1a4 [ 74.581723][ T4855] debugfs: out of free dentries, can not create directory 'nbd1' [ 74.592089][ T4855] block nbd1: Failed to create debugfs dir for 'nbd1' [ 74.613192][ T4862] FAULT_INJECTION: forcing a failure. [ 74.613192][ T4862] name failslab, interval 1, probability 0, space 0, times 0 [ 74.617715][ T4872] FAULT_INJECTION: forcing a failure. [ 74.617715][ T4872] name failslab, interval 1, probability 0, space 0, times 0 [ 74.655323][ T4872] CPU: 1 PID: 4872 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 74.657763][ T4872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.660568][ T4872] Call trace: [ 74.661532][ T4872] dump_backtrace+0x0/0x43c [ 74.662854][ T4872] show_stack+0x2c/0x3c [ 74.664008][ T4872] __dump_stack+0x30/0x40 [ 74.665274][ T4872] dump_stack_lvl+0xf8/0x160 [ 74.666550][ T4872] dump_stack+0x1c/0x5c [ 74.667724][ T4872] should_fail+0x3c0/0x51c [ 74.668967][ T4872] __should_failslab+0xbc/0x10c [ 74.670284][ T4872] should_failslab+0x10/0x28 [ 74.671627][ T4872] slab_pre_alloc_hook+0x64/0xec [ 74.673017][ T4872] __kmalloc_node+0xb8/0x520 [ 74.674313][ T4872] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.675876][ T4872] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.677497][ T4872] nbd_start_device+0x14c/0xb40 [ 74.678903][ T4872] nbd_ioctl+0x514/0xc50 [ 74.680079][ T4872] blkdev_ioctl+0x5f8/0xbb8 [ 74.681282][ T4872] block_ioctl+0xa4/0x118 [ 74.682502][ T4872] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.682743][ T4860] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.683879][ T4872] invoke_syscall+0x98/0x2b8 [ 74.683896][ T4872] el0_svc_common+0x138/0x258 [ 74.683905][ T4872] do_el0_svc+0x58/0x14c [ 74.683915][ T4872] el0_svc+0x78/0x1e0 [ 74.683924][ T4872] el0t_64_sync_handler+0xcc/0xe4 [ 74.692034][ T4872] el0t_64_sync+0x1a0/0x1a4 [ 74.694490][ T4862] CPU: 1 PID: 4862 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 74.696901][ T4862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 74.699740][ T4862] Call trace: [ 74.700647][ T4862] dump_backtrace+0x0/0x43c [ 74.701859][ T4862] show_stack+0x2c/0x3c [ 74.703004][ T4862] __dump_stack+0x30/0x40 [ 74.704254][ T4862] dump_stack_lvl+0xf8/0x160 [ 74.705588][ T4862] dump_stack+0x1c/0x5c [ 74.706698][ T4862] should_fail+0x3c0/0x51c [ 74.707942][ T4862] __should_failslab+0xbc/0x10c [ 74.709282][ T4862] should_failslab+0x10/0x28 [ 74.710642][ T4862] slab_pre_alloc_hook+0x64/0xec [ 74.712078][ T4862] __kmalloc_node+0xb8/0x520 [ 74.713441][ T4862] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.714940][ T4862] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.716496][ T4862] nbd_start_device+0x14c/0xb40 [ 74.717858][ T4862] nbd_ioctl+0x514/0xc50 [ 74.719124][ T4862] blkdev_ioctl+0x5f8/0xbb8 [ 74.720423][ T4862] block_ioctl+0xa4/0x118 [ 74.721674][ T4862] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.723060][ T4862] invoke_syscall+0x98/0x2b8 [ 74.724359][ T4862] el0_svc_common+0x138/0x258 [ 74.725762][ T4862] do_el0_svc+0x58/0x14c [ 74.727059][ T4862] el0_svc+0x78/0x1e0 [ 74.728138][ T4862] el0t_64_sync_handler+0xcc/0xe4 [ 74.729547][ T4862] el0t_64_sync+0x1a0/0x1a4 [ 74.746962][ T25] cfg80211: failed to load regulatory.db [ 74.765621][ T4862] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.768917][ T4872] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.965837][ T4881] block nbd3: shutting down sockets [ 74.994538][ T4888] block nbd0: shutting down sockets [ 74.996682][ T4886] block nbd1: shutting down sockets [ 75.005992][ T4894] block nbd4: shutting down sockets [ 75.007776][ T4886] FAULT_INJECTION: forcing a failure. [ 75.007776][ T4886] name failslab, interval 1, probability 0, space 0, times 0 [ 75.008255][ T4892] block nbd2: shutting down sockets [ 75.014892][ T4886] CPU: 1 PID: 4886 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 75.017291][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.020161][ T4886] Call trace: [ 75.021143][ T4886] dump_backtrace+0x0/0x43c [ 75.022468][ T4886] show_stack+0x2c/0x3c [ 75.023665][ T4886] __dump_stack+0x30/0x40 [ 75.024901][ T4886] dump_stack_lvl+0xf8/0x160 [ 75.026196][ T4886] dump_stack+0x1c/0x5c [ 75.027413][ T4886] should_fail+0x3c0/0x51c [ 75.028626][ T4886] __should_failslab+0xbc/0x10c [ 75.029919][ T4886] should_failslab+0x10/0x28 [ 75.031389][ T4886] slab_pre_alloc_hook+0x64/0xec [ 75.032823][ T4886] kmem_cache_alloc+0x94/0x3e4 [ 75.034215][ T4886] new_inode_pseudo+0x10c/0x1fc [ 75.035675][ T4886] new_inode+0x38/0x174 [ 75.036898][ T4886] debugfs_create_dir+0xec/0x3f4 [ 75.038312][ T4886] nbd_start_device+0x3c8/0xb40 [ 75.039752][ T4886] nbd_ioctl+0x514/0xc50 [ 75.040916][ T4886] blkdev_ioctl+0x5f8/0xbb8 [ 75.042247][ T4886] block_ioctl+0xa4/0x118 [ 75.043492][ T4886] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.044891][ T4886] invoke_syscall+0x98/0x2b8 [ 75.046184][ T4886] el0_svc_common+0x138/0x258 [ 75.047463][ T4886] do_el0_svc+0x58/0x14c [ 75.048704][ T4886] el0_svc+0x78/0x1e0 [ 75.049866][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 75.051376][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 75.062388][ T4881] FAULT_INJECTION: forcing a failure. [ 75.062388][ T4881] name failslab, interval 1, probability 0, space 0, times 0 [ 75.079647][ T4888] FAULT_INJECTION: forcing a failure. [ 75.079647][ T4888] name failslab, interval 1, probability 0, space 0, times 0 [ 75.097410][ T4888] CPU: 1 PID: 4888 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 75.100077][ T4888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.102846][ T4888] Call trace: [ 75.103789][ T4888] dump_backtrace+0x0/0x43c [ 75.105110][ T4888] show_stack+0x2c/0x3c [ 75.106270][ T4888] __dump_stack+0x30/0x40 [ 75.107477][ T4888] dump_stack_lvl+0xf8/0x160 [ 75.108990][ T4888] dump_stack+0x1c/0x5c [ 75.110207][ T4888] should_fail+0x3c0/0x51c [ 75.111572][ T4888] __should_failslab+0xbc/0x10c [ 75.112989][ T4888] should_failslab+0x10/0x28 [ 75.114396][ T4888] slab_pre_alloc_hook+0x64/0xec [ 75.115847][ T4888] __kmalloc_node+0xb8/0x520 [ 75.117171][ T4888] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.118835][ T4888] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.120628][ T4888] nbd_start_device+0x14c/0xb40 [ 75.122001][ T4888] nbd_ioctl+0x514/0xc50 [ 75.123260][ T4888] blkdev_ioctl+0x5f8/0xbb8 [ 75.124571][ T4888] block_ioctl+0xa4/0x118 [ 75.125852][ T4888] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.127415][ T4888] invoke_syscall+0x98/0x2b8 [ 75.128833][ T4888] el0_svc_common+0x138/0x258 [ 75.130363][ T4888] do_el0_svc+0x58/0x14c [ 75.131758][ T4888] el0_svc+0x78/0x1e0 [ 75.132932][ T4888] el0t_64_sync_handler+0xcc/0xe4 [ 75.134454][ T4888] el0t_64_sync+0x1a0/0x1a4 [ 75.138586][ T4881] CPU: 1 PID: 4881 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 75.141351][ T4881] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.144630][ T4881] Call trace: [ 75.145701][ T4886] debugfs: out of free dentries, can not create directory 'nbd1' [ 75.145707][ T4881] dump_backtrace+0x0/0x43c [ 75.148752][ T4886] block nbd1: Failed to create debugfs dir for 'nbd1' [ 75.149615][ T4881] show_stack+0x2c/0x3c [ 75.149633][ T4881] __dump_stack+0x30/0x40 [ 75.149646][ T4881] dump_stack_lvl+0xf8/0x160 [ 75.149656][ T4881] dump_stack+0x1c/0x5c [ 75.156938][ T4881] should_fail+0x3c0/0x51c [ 75.158205][ T4881] __should_failslab+0xbc/0x10c [ 75.159690][ T4881] should_failslab+0x10/0x28 [ 75.161038][ T4881] slab_pre_alloc_hook+0x64/0xec [ 75.162545][ T4881] __kmalloc_node+0xb8/0x520 [ 75.163813][ T4881] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 75.165575][ T4881] nbd_start_device+0x14c/0xb40 [ 75.167004][ T4881] nbd_ioctl+0x514/0xc50 [ 75.168195][ T4881] blkdev_ioctl+0x5f8/0xbb8 [ 75.169520][ T4881] block_ioctl+0xa4/0x118 [ 75.170772][ T4881] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.172317][ T4881] invoke_syscall+0x98/0x2b8 [ 75.173671][ T4881] el0_svc_common+0x138/0x258 [ 75.175024][ T4881] do_el0_svc+0x58/0x14c [ 75.176290][ T4881] el0_svc+0x78/0x1e0 [ 75.177530][ T4881] el0t_64_sync_handler+0xcc/0xe4 [ 75.179012][ T4881] el0t_64_sync+0x1a0/0x1a4 [ 75.190962][ T4888] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.230560][ T4892] FAULT_INJECTION: forcing a failure. [ 75.230560][ T4892] name failslab, interval 1, probability 0, space 0, times 0 [ 75.234139][ T4892] CPU: 0 PID: 4892 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 75.236817][ T4892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.240030][ T4892] Call trace: [ 75.241026][ T4892] dump_backtrace+0x0/0x43c [ 75.242357][ T4892] show_stack+0x2c/0x3c [ 75.243607][ T4892] __dump_stack+0x30/0x40 [ 75.244945][ T4892] dump_stack_lvl+0xf8/0x160 [ 75.246264][ T4892] dump_stack+0x1c/0x5c [ 75.247441][ T4892] should_fail+0x3c0/0x51c [ 75.248749][ T4892] __should_failslab+0xbc/0x10c [ 75.250192][ T4892] should_failslab+0x10/0x28 [ 75.251546][ T4892] slab_pre_alloc_hook+0x64/0xec [ 75.252927][ T4892] __kmalloc_node+0xb8/0x520 [ 75.254383][ T4892] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 75.256057][ T4892] nbd_start_device+0x14c/0xb40 [ 75.257470][ T4892] nbd_ioctl+0x514/0xc50 [ 75.258701][ T4892] blkdev_ioctl+0x5f8/0xbb8 [ 75.260026][ T4892] block_ioctl+0xa4/0x118 [ 75.261317][ T4892] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.262803][ T4892] invoke_syscall+0x98/0x2b8 [ 75.264093][ T4892] el0_svc_common+0x138/0x258 [ 75.265358][ T4892] do_el0_svc+0x58/0x14c [ 75.266641][ T4892] el0_svc+0x78/0x1e0 [ 75.267816][ T4892] el0t_64_sync_handler+0xcc/0xe4 [ 75.269305][ T4892] el0t_64_sync+0x1a0/0x1a4 [ 75.286240][ T4894] FAULT_INJECTION: forcing a failure. [ 75.286240][ T4894] name failslab, interval 1, probability 0, space 0, times 0 [ 75.315978][ T4894] CPU: 1 PID: 4894 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 75.318599][ T4894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.321541][ T4894] Call trace: [ 75.322440][ T4894] dump_backtrace+0x0/0x43c [ 75.323749][ T4894] show_stack+0x2c/0x3c [ 75.324930][ T4894] __dump_stack+0x30/0x40 [ 75.326218][ T4894] dump_stack_lvl+0xf8/0x160 [ 75.327566][ T4894] dump_stack+0x1c/0x5c [ 75.328767][ T4894] should_fail+0x3c0/0x51c [ 75.330023][ T4894] __should_failslab+0xbc/0x10c [ 75.331343][ T4894] should_failslab+0x10/0x28 [ 75.332692][ T4894] slab_pre_alloc_hook+0x64/0xec [ 75.334101][ T4894] __kmalloc_node+0xb8/0x520 [ 75.335520][ T4894] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.337186][ T4894] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.338913][ T4894] nbd_start_device+0x14c/0xb40 [ 75.340423][ T4894] nbd_ioctl+0x514/0xc50 [ 75.341634][ T4894] blkdev_ioctl+0x5f8/0xbb8 [ 75.342917][ T4894] block_ioctl+0xa4/0x118 [ 75.344127][ T4894] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.345576][ T4894] invoke_syscall+0x98/0x2b8 [ 75.346879][ T4894] el0_svc_common+0x138/0x258 [ 75.348252][ T4894] do_el0_svc+0x58/0x14c [ 75.349518][ T4894] el0_svc+0x78/0x1e0 [ 75.350695][ T4894] el0t_64_sync_handler+0xcc/0xe4 [ 75.352115][ T4894] el0t_64_sync+0x1a0/0x1a4 [ 75.411825][ T4894] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.425886][ T4905] block nbd3: shutting down sockets [ 75.425888][ T4906] block nbd1: shutting down sockets [ 75.437342][ T4906] FAULT_INJECTION: forcing a failure. [ 75.437342][ T4906] name failslab, interval 1, probability 0, space 0, times 0 [ 75.446633][ T4906] CPU: 0 PID: 4906 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 75.449114][ T4906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.451954][ T4906] Call trace: [ 75.452875][ T4906] dump_backtrace+0x0/0x43c [ 75.454236][ T4906] show_stack+0x2c/0x3c [ 75.455387][ T4906] __dump_stack+0x30/0x40 [ 75.456698][ T4906] dump_stack_lvl+0xf8/0x160 [ 75.457978][ T4906] dump_stack+0x1c/0x5c [ 75.459244][ T4906] should_fail+0x3c0/0x51c [ 75.459626][ T4905] FAULT_INJECTION: forcing a failure. [ 75.459626][ T4905] name failslab, interval 1, probability 0, space 0, times 0 [ 75.460504][ T4906] __should_failslab+0xbc/0x10c [ 75.465665][ T4906] should_failslab+0x10/0x28 [ 75.467052][ T4906] slab_pre_alloc_hook+0x64/0xec [ 75.468527][ T4906] kmem_cache_alloc+0x94/0x3e4 [ 75.469989][ T4906] new_inode_pseudo+0x10c/0x1fc [ 75.471431][ T4906] new_inode+0x38/0x174 [ 75.472697][ T4906] debugfs_create_dir+0xec/0x3f4 [ 75.474227][ T4906] nbd_start_device+0x3c8/0xb40 [ 75.475642][ T4906] nbd_ioctl+0x514/0xc50 [ 75.476842][ T4906] blkdev_ioctl+0x5f8/0xbb8 [ 75.478220][ T4906] block_ioctl+0xa4/0x118 [ 75.479451][ T4906] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.480831][ T4906] invoke_syscall+0x98/0x2b8 [ 75.482196][ T4906] el0_svc_common+0x138/0x258 [ 75.483528][ T4906] do_el0_svc+0x58/0x14c [ 75.484769][ T4906] el0_svc+0x78/0x1e0 [ 75.485897][ T4906] el0t_64_sync_handler+0xcc/0xe4 [ 75.487379][ T4906] el0t_64_sync+0x1a0/0x1a4 [ 75.501628][ T4905] CPU: 1 PID: 4905 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 75.504006][ T4905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.506199][ T4906] debugfs: out of free dentries, can not create directory 'nbd1' [ 75.506797][ T4905] Call trace: [ 75.506805][ T4905] dump_backtrace+0x0/0x43c [ 75.506821][ T4905] show_stack+0x2c/0x3c [ 75.506829][ T4905] __dump_stack+0x30/0x40 [ 75.510773][ T4906] block nbd1: Failed to create debugfs dir for 'nbd1' [ 75.511381][ T4905] dump_stack_lvl+0xf8/0x160 [ 75.511401][ T4905] dump_stack+0x1c/0x5c [ 75.518176][ T4905] should_fail+0x3c0/0x51c [ 75.519434][ T4905] __should_failslab+0xbc/0x10c [ 75.520807][ T4905] should_failslab+0x10/0x28 [ 75.522297][ T4905] slab_pre_alloc_hook+0x64/0xec [ 75.523808][ T4905] __kmalloc_node+0xb8/0x520 [ 75.525121][ T4905] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 75.526773][ T4905] nbd_start_device+0x14c/0xb40 [ 75.528177][ T4905] nbd_ioctl+0x514/0xc50 [ 75.529372][ T4905] blkdev_ioctl+0x5f8/0xbb8 [ 75.530696][ T4905] block_ioctl+0xa4/0x118 [ 75.531978][ T4905] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.533397][ T4905] invoke_syscall+0x98/0x2b8 [ 75.534838][ T4905] el0_svc_common+0x138/0x258 [ 75.536214][ T4905] do_el0_svc+0x58/0x14c [ 75.537533][ T4905] el0_svc+0x78/0x1e0 [ 75.538776][ T4905] el0t_64_sync_handler+0xcc/0xe4 [ 75.540243][ T4905] el0t_64_sync+0x1a0/0x1a4 [ 75.577944][ T4910] block nbd0: shutting down sockets [ 75.616877][ T4914] block nbd2: shutting down sockets [ 75.636097][ T4917] block nbd1: shutting down sockets [ 75.638769][ T4917] FAULT_INJECTION: forcing a failure. [ 75.638769][ T4917] name failslab, interval 1, probability 0, space 0, times 0 [ 75.639957][ T4914] FAULT_INJECTION: forcing a failure. [ 75.639957][ T4914] name failslab, interval 1, probability 0, space 0, times 0 [ 75.642625][ T4917] CPU: 1 PID: 4917 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 75.648594][ T4917] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.651463][ T4917] Call trace: [ 75.652447][ T4917] dump_backtrace+0x0/0x43c [ 75.653868][ T4917] show_stack+0x2c/0x3c [ 75.655039][ T4917] __dump_stack+0x30/0x40 [ 75.656231][ T4917] dump_stack_lvl+0xf8/0x160 [ 75.657568][ T4917] dump_stack+0x1c/0x5c [ 75.658734][ T4917] should_fail+0x3c0/0x51c [ 75.659978][ T4917] __should_failslab+0xbc/0x10c [ 75.661456][ T4917] should_failslab+0x10/0x28 [ 75.662754][ T4917] slab_pre_alloc_hook+0x64/0xec [ 75.664129][ T4917] kmem_cache_alloc+0x94/0x3e4 [ 75.664645][ T4915] FAULT_INJECTION: forcing a failure. [ 75.664645][ T4915] name failslab, interval 1, probability 0, space 0, times 0 [ 75.665459][ T4917] __d_alloc+0x3c/0x65c [ 75.665482][ T4917] d_alloc_parallel+0x80/0x1104 [ 75.665492][ T4917] __lookup_slow+0x104/0x380 [ 75.665502][ T4917] lookup_one_len+0x178/0x28c [ 75.665510][ T4917] start_creating+0x19c/0x2e0 [ 75.665520][ T4917] debugfs_create_dir+0x30/0x3f4 [ 75.677082][ T4917] nbd_start_device+0x3c8/0xb40 [ 75.678609][ T4917] nbd_ioctl+0x514/0xc50 [ 75.679837][ T4917] blkdev_ioctl+0x5f8/0xbb8 [ 75.681097][ T4917] block_ioctl+0xa4/0x118 [ 75.682372][ T4917] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.683834][ T4917] invoke_syscall+0x98/0x2b8 [ 75.685079][ T4917] el0_svc_common+0x138/0x258 [ 75.686454][ T4917] do_el0_svc+0x58/0x14c [ 75.687664][ T4917] el0_svc+0x78/0x1e0 [ 75.688856][ T4917] el0t_64_sync_handler+0xcc/0xe4 [ 75.690367][ T4917] el0t_64_sync+0x1a0/0x1a4 [ 75.696220][ T4914] CPU: 1 PID: 4914 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 75.698840][ T4914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.701713][ T4914] Call trace: [ 75.702636][ T4914] dump_backtrace+0x0/0x43c [ 75.704008][ T4914] show_stack+0x2c/0x3c [ 75.705362][ T4914] __dump_stack+0x30/0x40 [ 75.706618][ T4914] dump_stack_lvl+0xf8/0x160 [ 75.707941][ T4914] dump_stack+0x1c/0x5c [ 75.709297][ T4914] should_fail+0x3c0/0x51c [ 75.710588][ T4914] __should_failslab+0xbc/0x10c [ 75.711988][ T4914] should_failslab+0x10/0x28 [ 75.713325][ T4914] slab_pre_alloc_hook+0x64/0xec [ 75.714768][ T4914] __kmalloc_node+0xb8/0x520 [ 75.716139][ T4914] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.717781][ T4914] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.719464][ T4914] nbd_start_device+0x14c/0xb40 [ 75.720818][ T4914] nbd_ioctl+0x514/0xc50 [ 75.722060][ T4914] blkdev_ioctl+0x5f8/0xbb8 [ 75.723393][ T4914] block_ioctl+0xa4/0x118 [ 75.724602][ T4914] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.725973][ T4914] invoke_syscall+0x98/0x2b8 [ 75.727308][ T4914] el0_svc_common+0x138/0x258 [ 75.728610][ T4914] do_el0_svc+0x58/0x14c [ 75.729812][ T4914] el0_svc+0x78/0x1e0 [ 75.730959][ T4914] el0t_64_sync_handler+0xcc/0xe4 [ 75.732454][ T4914] el0t_64_sync+0x1a0/0x1a4 [ 75.733737][ T4915] CPU: 0 PID: 4915 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 75.736249][ T4915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.739157][ T4915] Call trace: [ 75.740091][ T4915] dump_backtrace+0x0/0x43c [ 75.741422][ T4915] show_stack+0x2c/0x3c [ 75.742648][ T4915] __dump_stack+0x30/0x40 [ 75.743930][ T4915] dump_stack_lvl+0xf8/0x160 [ 75.745188][ T4915] dump_stack+0x1c/0x5c [ 75.746374][ T4915] should_fail+0x3c0/0x51c [ 75.747653][ T4915] __should_failslab+0xbc/0x10c [ 75.749061][ T4915] should_failslab+0x10/0x28 [ 75.750367][ T4915] slab_pre_alloc_hook+0x64/0xec [ 75.751793][ T4915] __kmalloc_node+0xb8/0x520 [ 75.753094][ T4915] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.754652][ T4915] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.756252][ T4915] nbd_start_device+0x14c/0xb40 [ 75.757646][ T4915] nbd_ioctl+0x514/0xc50 [ 75.758781][ T4915] blkdev_ioctl+0x5f8/0xbb8 [ 75.760056][ T4915] block_ioctl+0xa4/0x118 [ 75.761295][ T4915] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.762713][ T4915] invoke_syscall+0x98/0x2b8 [ 75.764060][ T4915] el0_svc_common+0x138/0x258 [ 75.765467][ T4915] do_el0_svc+0x58/0x14c [ 75.766753][ T4915] el0_svc+0x78/0x1e0 [ 75.767851][ T4915] el0t_64_sync_handler+0xcc/0xe4 [ 75.769270][ T4915] el0t_64_sync+0x1a0/0x1a4 [ 75.817800][ T4914] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.823090][ T4917] block nbd1: Failed to create debugfs dir for 'nbd1' [ 75.826114][ T4922] block nbd4: shutting down sockets [ 75.837368][ T4928] block nbd3: Device being setup by another task [ 75.839720][ T4923] block nbd3: shutting down sockets [ 75.870633][ T4923] FAULT_INJECTION: forcing a failure. [ 75.870633][ T4923] name failslab, interval 1, probability 0, space 0, times 0 [ 75.874565][ T4923] CPU: 1 PID: 4923 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 75.876928][ T4923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.878680][ T4915] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.879697][ T4923] Call trace: [ 75.879704][ T4923] dump_backtrace+0x0/0x43c [ 75.879719][ T4923] show_stack+0x2c/0x3c [ 75.879728][ T4923] __dump_stack+0x30/0x40 [ 75.879739][ T4923] dump_stack_lvl+0xf8/0x160 [ 75.879749][ T4923] dump_stack+0x1c/0x5c [ 75.888648][ T4923] should_fail+0x3c0/0x51c [ 75.889937][ T4923] __should_failslab+0xbc/0x10c [ 75.891372][ T4923] should_failslab+0x10/0x28 [ 75.892680][ T4923] slab_pre_alloc_hook+0x64/0xec [ 75.894033][ T4923] kmem_cache_alloc+0x94/0x3e4 [ 75.895434][ T4923] new_inode_pseudo+0x10c/0x1fc [ 75.896886][ T4923] new_inode+0x38/0x174 [ 75.898115][ T4923] debugfs_create_dir+0xec/0x3f4 [ 75.899503][ T4923] nbd_start_device+0x3c8/0xb40 [ 75.900937][ T4923] nbd_ioctl+0x514/0xc50 [ 75.902314][ T4923] blkdev_ioctl+0x5f8/0xbb8 [ 75.903691][ T4923] block_ioctl+0xa4/0x118 [ 75.904886][ T4923] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.906317][ T4923] invoke_syscall+0x98/0x2b8 [ 75.907666][ T4923] el0_svc_common+0x138/0x258 [ 75.909099][ T4923] do_el0_svc+0x58/0x14c [ 75.910382][ T4923] el0_svc+0x78/0x1e0 [ 75.911540][ T4923] el0t_64_sync_handler+0xcc/0xe4 [ 75.913193][ T4923] el0t_64_sync+0x1a0/0x1a4 [ 75.944248][ T4922] FAULT_INJECTION: forcing a failure. [ 75.944248][ T4922] name failslab, interval 1, probability 0, space 0, times 0 [ 75.960098][ T4922] CPU: 0 PID: 4922 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 75.962703][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 75.965619][ T4922] Call trace: [ 75.966586][ T4922] dump_backtrace+0x0/0x43c [ 75.967986][ T4922] show_stack+0x2c/0x3c [ 75.969198][ T4922] __dump_stack+0x30/0x40 [ 75.970432][ T4922] dump_stack_lvl+0xf8/0x160 [ 75.971727][ T4922] dump_stack+0x1c/0x5c [ 75.972925][ T4922] should_fail+0x3c0/0x51c [ 75.974250][ T4922] __should_failslab+0xbc/0x10c [ 75.975605][ T4922] should_failslab+0x10/0x28 [ 75.976931][ T4922] slab_pre_alloc_hook+0x64/0xec [ 75.978371][ T4922] __kmalloc_node+0xb8/0x520 [ 75.979811][ T4922] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.981363][ T4922] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.982978][ T4922] nbd_start_device+0x14c/0xb40 [ 75.984354][ T4922] nbd_ioctl+0x514/0xc50 [ 75.985590][ T4922] blkdev_ioctl+0x5f8/0xbb8 [ 75.986897][ T4922] block_ioctl+0xa4/0x118 [ 75.988116][ T4922] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.989585][ T4922] invoke_syscall+0x98/0x2b8 [ 75.990933][ T4922] el0_svc_common+0x138/0x258 [ 75.992291][ T4922] do_el0_svc+0x58/0x14c [ 75.993543][ T4922] el0_svc+0x78/0x1e0 [ 75.994673][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 75.996130][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 76.011998][ T4923] debugfs: out of free dentries, can not create directory 'nbd3' [ 76.045482][ T4923] block nbd3: Failed to create debugfs dir for 'nbd3' [ 76.078126][ T4935] block nbd1: shutting down sockets [ 76.083990][ T4935] FAULT_INJECTION: forcing a failure. [ 76.083990][ T4935] name failslab, interval 1, probability 0, space 0, times 0 [ 76.104497][ T4935] CPU: 1 PID: 4935 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 76.107048][ T4935] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.110003][ T4935] Call trace: [ 76.111121][ T4935] dump_backtrace+0x0/0x43c [ 76.112496][ T4935] show_stack+0x2c/0x3c [ 76.113794][ T4935] __dump_stack+0x30/0x40 [ 76.115017][ T4935] dump_stack_lvl+0xf8/0x160 [ 76.116342][ T4935] dump_stack+0x1c/0x5c [ 76.117647][ T4935] should_fail+0x3c0/0x51c [ 76.118919][ T4935] __should_failslab+0xbc/0x10c [ 76.120308][ T4935] should_failslab+0x10/0x28 [ 76.121671][ T4935] slab_pre_alloc_hook+0x64/0xec [ 76.123110][ T4935] __kmalloc_node+0xb8/0x520 [ 76.124509][ T4935] memcg_alloc_page_obj_cgroups+0x80/0x174 [ 76.126175][ T4935] slab_post_alloc_hook+0xc0/0x408 [ 76.127658][ T4935] kmem_cache_alloc+0x1e0/0x3e4 [ 76.129018][ T4935] __d_alloc+0x3c/0x65c [ 76.130196][ T4935] d_alloc_parallel+0x80/0x1104 [ 76.131513][ T4935] __lookup_slow+0x104/0x380 [ 76.132809][ T4935] lookup_one_len+0x178/0x28c [ 76.134229][ T4935] start_creating+0x19c/0x2e0 [ 76.135536][ T4935] debugfs_create_dir+0x30/0x3f4 [ 76.135683][ T4922] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.137011][ T4935] nbd_start_device+0x3c8/0xb40 [ 76.137029][ T4935] nbd_ioctl+0x514/0xc50 [ 76.137038][ T4935] blkdev_ioctl+0x5f8/0xbb8 [ 76.137049][ T4935] block_ioctl+0xa4/0x118 [ 76.137060][ T4935] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.145492][ T4935] invoke_syscall+0x98/0x2b8 [ 76.146808][ T4935] el0_svc_common+0x138/0x258 [ 76.148121][ T4935] do_el0_svc+0x58/0x14c [ 76.149358][ T4935] el0_svc+0x78/0x1e0 [ 76.150485][ T4935] el0t_64_sync_handler+0xcc/0xe4 [ 76.151979][ T4935] el0t_64_sync+0x1a0/0x1a4 [ 76.195893][ T4938] block nbd2: shutting down sockets [ 76.196484][ T4941] block nbd0: shutting down sockets [ 76.239321][ T4938] FAULT_INJECTION: forcing a failure. [ 76.239321][ T4938] name failslab, interval 1, probability 0, space 0, times 0 [ 76.243047][ T4938] CPU: 1 PID: 4938 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 76.245356][ T4938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.248316][ T4938] Call trace: [ 76.249301][ T4938] dump_backtrace+0x0/0x43c [ 76.250673][ T4938] show_stack+0x2c/0x3c [ 76.251863][ T4938] __dump_stack+0x30/0x40 [ 76.253158][ T4938] dump_stack_lvl+0xf8/0x160 [ 76.254519][ T4938] dump_stack+0x1c/0x5c [ 76.255765][ T4938] should_fail+0x3c0/0x51c [ 76.257050][ T4938] __should_failslab+0xbc/0x10c [ 76.258404][ T4938] should_failslab+0x10/0x28 [ 76.259789][ T4938] slab_pre_alloc_hook+0x64/0xec [ 76.261257][ T4938] __kmalloc_node+0xb8/0x520 [ 76.262629][ T4938] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.264195][ T4938] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.265861][ T4938] nbd_start_device+0x14c/0xb40 [ 76.267341][ T4938] nbd_ioctl+0x514/0xc50 [ 76.268551][ T4938] blkdev_ioctl+0x5f8/0xbb8 [ 76.269832][ T4938] block_ioctl+0xa4/0x118 [ 76.271050][ T4938] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.272537][ T4938] invoke_syscall+0x98/0x2b8 [ 76.273868][ T4938] el0_svc_common+0x138/0x258 [ 76.275213][ T4938] do_el0_svc+0x58/0x14c [ 76.276424][ T4938] el0_svc+0x78/0x1e0 [ 76.277591][ T4938] el0t_64_sync_handler+0xcc/0xe4 [ 76.279042][ T4938] el0t_64_sync+0x1a0/0x1a4 [ 76.293376][ T4938] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.309126][ T4941] FAULT_INJECTION: forcing a failure. [ 76.309126][ T4941] name failslab, interval 1, probability 0, space 0, times 0 [ 76.319540][ T4946] block nbd3: shutting down sockets [ 76.365618][ T4941] CPU: 0 PID: 4941 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 76.368118][ T4941] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.370934][ T4941] Call trace: [ 76.371827][ T4941] dump_backtrace+0x0/0x43c [ 76.373084][ T4941] show_stack+0x2c/0x3c [ 76.374248][ T4941] __dump_stack+0x30/0x40 [ 76.375480][ T4941] dump_stack_lvl+0xf8/0x160 [ 76.376766][ T4941] dump_stack+0x1c/0x5c [ 76.377978][ T4941] should_fail+0x3c0/0x51c [ 76.379406][ T4941] __should_failslab+0xbc/0x10c [ 76.380787][ T4941] should_failslab+0x10/0x28 [ 76.382059][ T4941] slab_pre_alloc_hook+0x64/0xec [ 76.383479][ T4941] __kmalloc_node+0xb8/0x520 [ 76.384753][ T4941] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.386273][ T4941] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.387934][ T4941] nbd_start_device+0x14c/0xb40 [ 76.389293][ T4941] nbd_ioctl+0x514/0xc50 [ 76.390602][ T4941] blkdev_ioctl+0x5f8/0xbb8 [ 76.391896][ T4941] block_ioctl+0xa4/0x118 [ 76.393113][ T4941] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.394529][ T4941] invoke_syscall+0x98/0x2b8 [ 76.395817][ T4941] el0_svc_common+0x138/0x258 [ 76.397132][ T4941] do_el0_svc+0x58/0x14c [ 76.398380][ T4941] el0_svc+0x78/0x1e0 [ 76.399640][ T4941] el0t_64_sync_handler+0xcc/0xe4 [ 76.401070][ T4941] el0t_64_sync+0x1a0/0x1a4 [ 76.496447][ T4947] FAULT_INJECTION: forcing a failure. [ 76.496447][ T4947] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 76.508207][ T4947] CPU: 0 PID: 4947 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 76.510781][ T4947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.513847][ T4947] Call trace: [ 76.514796][ T4947] dump_backtrace+0x0/0x43c [ 76.516075][ T4947] show_stack+0x2c/0x3c [ 76.517194][ T4947] __dump_stack+0x30/0x40 [ 76.518418][ T4947] dump_stack_lvl+0xf8/0x160 [ 76.519757][ T4947] dump_stack+0x1c/0x5c [ 76.520973][ T4947] should_fail+0x3c0/0x51c [ 76.522244][ T4947] should_fail_alloc_page+0x74/0xa8 [ 76.523743][ T4947] prepare_alloc_pages+0x160/0x460 [ 76.525150][ T4947] __alloc_pages+0x108/0x470 [ 76.526480][ T4947] alloc_pages+0x34c/0x5c0 [ 76.527727][ T4947] stack_depot_save+0x354/0x49c [ 76.529056][ T4947] kasan_set_track+0x68/0x84 [ 76.530378][ T4947] kasan_set_free_info+0x28/0x4c [ 76.531881][ T4947] ____kasan_slab_free+0x118/0x164 [ 76.533301][ T4947] __kasan_slab_free+0x18/0x28 [ 76.534661][ T4947] slab_free_freelist_hook+0x128/0x1e8 [ 76.536162][ T4947] kfree+0x170/0x40c [ 76.537271][ T4947] __free_slab+0x120/0x398 [ 76.538503][ T4947] discard_slab+0x64/0xe0 [ 76.539740][ T4947] __slab_free+0x1c4/0x254 [ 76.541066][ T4947] ___cache_free+0x178/0x1bc [ 76.542498][ T4947] qlink_free+0x5c/0xa4 [ 76.543700][ T4947] qlist_free_all+0x40/0xa8 [ 76.545064][ T4947] kasan_quarantine_reduce+0x124/0x130 [ 76.546627][ T4947] __kasan_slab_alloc+0x34/0xcc [ 76.548051][ T4947] slab_post_alloc_hook+0x74/0x408 [ 76.549586][ T4947] __kmalloc_node+0x22c/0x520 [ 76.550922][ T4947] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 76.552568][ T4947] nbd_start_device+0x14c/0xb40 [ 76.553969][ T4947] nbd_ioctl+0x514/0xc50 [ 76.555445][ T4947] blkdev_ioctl+0x5f8/0xbb8 [ 76.556736][ T4947] block_ioctl+0xa4/0x118 [ 76.557996][ T4947] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.559455][ T4947] invoke_syscall+0x98/0x2b8 [ 76.560751][ T4947] el0_svc_common+0x138/0x258 [ 76.562154][ T4947] do_el0_svc+0x58/0x14c [ 76.563497][ T4947] el0_svc+0x78/0x1e0 [ 76.564808][ T4947] el0t_64_sync_handler+0xcc/0xe4 [ 76.566487][ T4947] el0t_64_sync+0x1a0/0x1a4 [ 76.589681][ T4959] block nbd4: shutting down sockets [ 76.606928][ T4960] block nbd1: shutting down sockets [ 76.607617][ T4941] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.609213][ T4964] FAULT_INJECTION: forcing a failure. [ 76.609213][ T4964] name failslab, interval 1, probability 0, space 0, times 0 [ 76.621858][ T4964] CPU: 1 PID: 4964 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 76.624213][ T4964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.627212][ T4964] Call trace: [ 76.628133][ T4964] dump_backtrace+0x0/0x43c [ 76.629418][ T4964] show_stack+0x2c/0x3c [ 76.630595][ T4964] __dump_stack+0x30/0x40 [ 76.631846][ T4964] dump_stack_lvl+0xf8/0x160 [ 76.633188][ T4964] dump_stack+0x1c/0x5c [ 76.634400][ T4964] should_fail+0x3c0/0x51c [ 76.635730][ T4964] __should_failslab+0xbc/0x10c [ 76.637157][ T4964] should_failslab+0x10/0x28 [ 76.638490][ T4964] slab_pre_alloc_hook+0x64/0xec [ 76.639882][ T4964] kmem_cache_alloc+0x94/0x3e4 [ 76.641285][ T4964] __d_alloc+0x3c/0x65c [ 76.642494][ T4964] d_alloc_parallel+0x80/0x1104 [ 76.643917][ T4964] __lookup_slow+0x104/0x380 [ 76.645324][ T4964] lookup_one_len+0x178/0x28c [ 76.646756][ T4964] start_creating+0x19c/0x2e0 [ 76.648010][ T4964] debugfs_create_dir+0x30/0x3f4 [ 76.649393][ T4964] nbd_start_device+0x3c8/0xb40 [ 76.650728][ T4964] nbd_ioctl+0x514/0xc50 [ 76.651936][ T4964] blkdev_ioctl+0x5f8/0xbb8 [ 76.653176][ T4964] block_ioctl+0xa4/0x118 [ 76.654409][ T4964] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.655819][ T4964] invoke_syscall+0x98/0x2b8 [ 76.657065][ T4964] el0_svc_common+0x138/0x258 [ 76.658370][ T4964] do_el0_svc+0x58/0x14c [ 76.659586][ T4964] el0_svc+0x78/0x1e0 [ 76.660723][ T4964] el0t_64_sync_handler+0xcc/0xe4 [ 76.662165][ T4964] el0t_64_sync+0x1a0/0x1a4 [ 76.683873][ T4964] block nbd1: Failed to create debugfs dir for 'nbd1' [ 76.696081][ T4951] FAULT_INJECTION: forcing a failure. [ 76.696081][ T4951] name failslab, interval 1, probability 0, space 0, times 0 [ 76.721810][ T4951] CPU: 1 PID: 4951 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 76.724184][ T4951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.727062][ T4951] Call trace: [ 76.727956][ T4951] dump_backtrace+0x0/0x43c [ 76.729230][ T4951] show_stack+0x2c/0x3c [ 76.730390][ T4951] __dump_stack+0x30/0x40 [ 76.731632][ T4951] dump_stack_lvl+0xf8/0x160 [ 76.732907][ T4951] dump_stack+0x1c/0x5c [ 76.734103][ T4951] should_fail+0x3c0/0x51c [ 76.735308][ T4951] __should_failslab+0xbc/0x10c [ 76.736633][ T4951] should_failslab+0x10/0x28 [ 76.737895][ T4951] slab_pre_alloc_hook+0x64/0xec [ 76.739252][ T4951] __kmalloc_node+0xb8/0x520 [ 76.740601][ T4951] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.742099][ T4951] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.743659][ T4951] nbd_start_device+0x14c/0xb40 [ 76.745080][ T4951] nbd_ioctl+0x514/0xc50 [ 76.746243][ T4951] blkdev_ioctl+0x5f8/0xbb8 [ 76.747443][ T4951] block_ioctl+0xa4/0x118 [ 76.748765][ T4951] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.750179][ T4951] invoke_syscall+0x98/0x2b8 [ 76.751421][ T4951] el0_svc_common+0x138/0x258 [ 76.752775][ T4951] do_el0_svc+0x58/0x14c [ 76.753989][ T4951] el0_svc+0x78/0x1e0 [ 76.755147][ T4951] el0t_64_sync_handler+0xcc/0xe4 [ 76.756594][ T4951] el0t_64_sync+0x1a0/0x1a4 [ 76.819092][ T4967] block nbd2: shutting down sockets [ 76.875770][ T4976] block nbd3: shutting down sockets [ 76.882240][ T4966] FAULT_INJECTION: forcing a failure. [ 76.882240][ T4966] name failslab, interval 1, probability 0, space 0, times 0 [ 76.888699][ T4969] FAULT_INJECTION: forcing a failure. [ 76.888699][ T4969] name fail_usercopy, interval 1, probability 0, space 0, times 1 [ 76.895372][ T4971] FAULT_INJECTION: forcing a failure. [ 76.895372][ T4971] name failslab, interval 1, probability 0, space 0, times 0 [ 76.905908][ T4969] CPU: 0 PID: 4969 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 76.908425][ T4969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.911376][ T4969] Call trace: [ 76.912296][ T4969] dump_backtrace+0x0/0x43c [ 76.913588][ T4969] show_stack+0x2c/0x3c [ 76.914707][ T4969] __dump_stack+0x30/0x40 [ 76.915956][ T4969] dump_stack_lvl+0xf8/0x160 [ 76.917283][ T4969] dump_stack+0x1c/0x5c [ 76.918505][ T4969] should_fail+0x3c0/0x51c [ 76.919789][ T4969] should_fail_usercopy+0x20/0x30 [ 76.921216][ T4969] kstrtouint_from_user+0xd0/0x2ec [ 76.922661][ T4969] proc_fail_nth_write+0x94/0x23c [ 76.924052][ T4969] vfs_write+0x280/0xa2c [ 76.925234][ T4969] ksys_write+0x120/0x210 [ 76.926521][ T4969] __arm64_sys_write+0x7c/0x90 [ 76.927909][ T4969] invoke_syscall+0x98/0x2b8 [ 76.929194][ T4969] el0_svc_common+0x138/0x258 [ 76.930550][ T4969] do_el0_svc+0x58/0x14c [ 76.931911][ T4969] el0_svc+0x78/0x1e0 [ 76.933012][ T4969] el0t_64_sync_handler+0xcc/0xe4 [ 76.934416][ T4969] el0t_64_sync+0x1a0/0x1a4 [ 76.938274][ T4951] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.944983][ T4971] CPU: 0 PID: 4971 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 76.947506][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.950430][ T4971] Call trace: [ 76.951403][ T4971] dump_backtrace+0x0/0x43c [ 76.952735][ T4971] show_stack+0x2c/0x3c [ 76.953913][ T4971] __dump_stack+0x30/0x40 [ 76.955179][ T4971] dump_stack_lvl+0xf8/0x160 [ 76.956474][ T4971] dump_stack+0x1c/0x5c [ 76.957626][ T4971] should_fail+0x3c0/0x51c [ 76.958951][ T4971] __should_failslab+0xbc/0x10c [ 76.960394][ T4971] should_failslab+0x10/0x28 [ 76.961684][ T4971] slab_pre_alloc_hook+0x64/0xec [ 76.963163][ T4971] kmem_cache_alloc+0x94/0x3e4 [ 76.964509][ T4971] new_inode_pseudo+0x10c/0x1fc [ 76.965914][ T4971] new_inode+0x38/0x174 [ 76.967091][ T4971] debugfs_create_dir+0xec/0x3f4 [ 76.968525][ T4971] nbd_start_device+0x3c8/0xb40 [ 76.969961][ T4971] nbd_ioctl+0x514/0xc50 [ 76.971158][ T4971] blkdev_ioctl+0x5f8/0xbb8 [ 76.972478][ T4971] block_ioctl+0xa4/0x118 [ 76.973809][ T4971] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.975197][ T4971] invoke_syscall+0x98/0x2b8 [ 76.976544][ T4971] el0_svc_common+0x138/0x258 [ 76.977882][ T4971] do_el0_svc+0x58/0x14c [ 76.979123][ T4971] el0_svc+0x78/0x1e0 [ 76.980231][ T4971] el0t_64_sync_handler+0xcc/0xe4 [ 76.981658][ T4971] el0t_64_sync+0x1a0/0x1a4 [ 76.983000][ T4966] CPU: 1 PID: 4966 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 76.985466][ T4966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 76.988328][ T4966] Call trace: [ 76.989259][ T4966] dump_backtrace+0x0/0x43c [ 76.990582][ T4966] show_stack+0x2c/0x3c [ 76.991776][ T4966] __dump_stack+0x30/0x40 [ 76.993030][ T4966] dump_stack_lvl+0xf8/0x160 [ 76.994439][ T4966] dump_stack+0x1c/0x5c [ 76.995632][ T4966] should_fail+0x3c0/0x51c [ 76.996895][ T4966] __should_failslab+0xbc/0x10c [ 76.998375][ T4966] should_failslab+0x10/0x28 [ 76.999696][ T4966] slab_pre_alloc_hook+0x64/0xec [ 77.001115][ T4966] __kmalloc_node+0xb8/0x520 [ 77.002432][ T4966] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.003948][ T4966] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.004405][ T4971] debugfs: out of free dentries, can not create directory 'nbd3' [ 77.005742][ T4966] nbd_start_device+0x14c/0xb40 [ 77.005760][ T4966] nbd_ioctl+0x514/0xc50 [ 77.005770][ T4966] blkdev_ioctl+0x5f8/0xbb8 [ 77.005778][ T4966] block_ioctl+0xa4/0x118 [ 77.005789][ T4966] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.005800][ T4966] invoke_syscall+0x98/0x2b8 [ 77.005810][ T4966] el0_svc_common+0x138/0x258 [ 77.017291][ T4966] do_el0_svc+0x58/0x14c [ 77.018308][ T4971] block nbd3: Failed to create debugfs dir for 'nbd3' [ 77.018504][ T4966] el0_svc+0x78/0x1e0 [ 77.021660][ T4966] el0t_64_sync_handler+0xcc/0xe4 [ 77.023098][ T4966] el0t_64_sync+0x1a0/0x1a4 [ 77.035215][ T4966] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.125891][ T4980] block nbd1: shutting down sockets [ 77.159852][ T4980] FAULT_INJECTION: forcing a failure. [ 77.159852][ T4980] name failslab, interval 1, probability 0, space 0, times 0 [ 77.163611][ T4980] CPU: 1 PID: 4980 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 77.166111][ T4980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.169009][ T4980] Call trace: [ 77.169959][ T4980] dump_backtrace+0x0/0x43c [ 77.171241][ T4980] show_stack+0x2c/0x3c [ 77.172418][ T4980] __dump_stack+0x30/0x40 [ 77.173767][ T4980] dump_stack_lvl+0xf8/0x160 [ 77.175081][ T4980] dump_stack+0x1c/0x5c [ 77.176257][ T4980] should_fail+0x3c0/0x51c [ 77.177530][ T4980] __should_failslab+0xbc/0x10c [ 77.178902][ T4980] should_failslab+0x10/0x28 [ 77.180319][ T4980] slab_pre_alloc_hook+0x64/0xec [ 77.181732][ T4980] kmem_cache_alloc+0x94/0x3e4 [ 77.183166][ T4980] new_inode_pseudo+0x10c/0x1fc [ 77.184510][ T4980] new_inode+0x38/0x174 [ 77.185665][ T4980] debugfs_create_dir+0xec/0x3f4 [ 77.187100][ T4980] nbd_start_device+0x3c8/0xb40 [ 77.188541][ T4980] nbd_ioctl+0x514/0xc50 [ 77.189873][ T4980] blkdev_ioctl+0x5f8/0xbb8 [ 77.191141][ T4980] block_ioctl+0xa4/0x118 [ 77.192501][ T4980] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.194017][ T4980] invoke_syscall+0x98/0x2b8 [ 77.195580][ T4980] el0_svc_common+0x138/0x258 [ 77.197012][ T4980] do_el0_svc+0x58/0x14c [ 77.198231][ T4980] el0_svc+0x78/0x1e0 [ 77.199266][ T4980] el0t_64_sync_handler+0xcc/0xe4 [ 77.200729][ T4980] el0t_64_sync+0x1a0/0x1a4 [ 77.270271][ T4980] debugfs: out of free dentries, can not create directory 'nbd1' [ 77.272219][ T4982] block nbd0: shutting down sockets [ 77.273191][ T4980] block nbd1: Failed to create debugfs dir for 'nbd1' [ 77.346176][ T4996] block nbd3: Device being setup by another task [ 77.348857][ T4986] block nbd3: shutting down sockets [ 77.349755][ T4982] FAULT_INJECTION: forcing a failure. [ 77.349755][ T4982] name failslab, interval 1, probability 0, space 0, times 0 [ 77.355651][ T4982] CPU: 1 PID: 4982 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 77.358057][ T4982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.360901][ T4982] Call trace: [ 77.361885][ T4982] dump_backtrace+0x0/0x43c [ 77.363136][ T4982] show_stack+0x2c/0x3c [ 77.364256][ T4982] __dump_stack+0x30/0x40 [ 77.365467][ T4982] dump_stack_lvl+0xf8/0x160 [ 77.366849][ T4982] dump_stack+0x1c/0x5c [ 77.368025][ T4982] should_fail+0x3c0/0x51c [ 77.369240][ T4982] __should_failslab+0xbc/0x10c [ 77.370575][ T4982] should_failslab+0x10/0x28 [ 77.371838][ T4982] slab_pre_alloc_hook+0x64/0xec [ 77.373275][ T4982] __kmalloc_node+0xb8/0x520 [ 77.374553][ T4982] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 77.376170][ T4982] nbd_start_device+0x14c/0xb40 [ 77.377562][ T4982] nbd_ioctl+0x514/0xc50 [ 77.378815][ T4982] blkdev_ioctl+0x5f8/0xbb8 [ 77.380164][ T4982] block_ioctl+0xa4/0x118 [ 77.381508][ T4982] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.382911][ T4982] invoke_syscall+0x98/0x2b8 [ 77.384267][ T4982] el0_svc_common+0x138/0x258 [ 77.385641][ T4982] do_el0_svc+0x58/0x14c [ 77.386853][ T4982] el0_svc+0x78/0x1e0 [ 77.388091][ T4982] el0t_64_sync_handler+0xcc/0xe4 [ 77.389539][ T4982] el0t_64_sync+0x1a0/0x1a4 [ 77.445376][ T4998] block nbd2: shutting down sockets [ 77.454863][ T4986] FAULT_INJECTION: forcing a failure. [ 77.454863][ T4986] name failslab, interval 1, probability 0, space 0, times 0 [ 77.466139][ T5000] block nbd4: shutting down sockets [ 77.466403][ T4986] CPU: 1 PID: 4986 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 77.468662][ T5002] block nbd1: shutting down sockets [ 77.470089][ T4986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.470101][ T4986] Call trace: [ 77.470104][ T4986] dump_backtrace+0x0/0x43c [ 77.470120][ T4986] show_stack+0x2c/0x3c [ 77.478076][ T4986] __dump_stack+0x30/0x40 [ 77.479344][ T4986] dump_stack_lvl+0xf8/0x160 [ 77.480761][ T4986] dump_stack+0x1c/0x5c [ 77.481960][ T4986] should_fail+0x3c0/0x51c [ 77.483229][ T4986] __should_failslab+0xbc/0x10c [ 77.484643][ T4986] should_failslab+0x10/0x28 [ 77.485966][ T4986] slab_pre_alloc_hook+0x64/0xec [ 77.487373][ T4986] __kmalloc_track_caller+0x74/0x370 [ 77.488882][ T4986] kvasprintf+0x17c/0x284 [ 77.490101][ T4986] kvasprintf_const+0x148/0x2d0 [ 77.491560][ T4986] kobject_set_name_vargs+0xcc/0x1b4 [ 77.493106][ T4986] kobject_add+0xfc/0x1f8 [ 77.494342][ T4986] blk_mq_register_hctx+0xc0/0x35c [ 77.494600][ T5002] FAULT_INJECTION: forcing a failure. [ 77.494600][ T5002] name failslab, interval 1, probability 0, space 0, times 0 [ 77.495855][ T4986] blk_mq_sysfs_register+0xb8/0x18c [ 77.495871][ T4986] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 77.495882][ T4986] nbd_start_device+0x14c/0xb40 [ 77.495893][ T4986] nbd_ioctl+0x514/0xc50 [ 77.495902][ T4986] blkdev_ioctl+0x5f8/0xbb8 [ 77.506371][ T4986] block_ioctl+0xa4/0x118 [ 77.507642][ T4986] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.509122][ T4986] invoke_syscall+0x98/0x2b8 [ 77.510428][ T4986] el0_svc_common+0x138/0x258 [ 77.511864][ T4986] do_el0_svc+0x58/0x14c [ 77.513111][ T4986] el0_svc+0x78/0x1e0 [ 77.514273][ T4986] el0t_64_sync_handler+0xcc/0xe4 [ 77.515664][ T4986] el0t_64_sync+0x1a0/0x1a4 [ 77.530174][ T5002] CPU: 1 PID: 5002 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 77.532653][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.535554][ T5002] Call trace: [ 77.536466][ T5002] dump_backtrace+0x0/0x43c [ 77.537735][ T5002] show_stack+0x2c/0x3c [ 77.538910][ T5002] __dump_stack+0x30/0x40 [ 77.540138][ T5002] dump_stack_lvl+0xf8/0x160 [ 77.541432][ T5002] dump_stack+0x1c/0x5c [ 77.542644][ T5002] should_fail+0x3c0/0x51c [ 77.543940][ T5002] __should_failslab+0xbc/0x10c [ 77.545307][ T5002] should_failslab+0x10/0x28 [ 77.546603][ T5002] slab_pre_alloc_hook+0x64/0xec [ 77.548056][ T5002] kmem_cache_alloc+0x94/0x3e4 [ 77.549416][ T5002] new_inode_pseudo+0x10c/0x1fc [ 77.550769][ T5002] new_inode+0x38/0x174 [ 77.551952][ T5002] debugfs_create_dir+0xec/0x3f4 [ 77.553343][ T5002] nbd_start_device+0x3c8/0xb40 [ 77.554692][ T5002] nbd_ioctl+0x514/0xc50 [ 77.555939][ T5002] blkdev_ioctl+0x5f8/0xbb8 [ 77.557155][ T5002] block_ioctl+0xa4/0x118 [ 77.558484][ T5002] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.559836][ T5002] invoke_syscall+0x98/0x2b8 [ 77.561105][ T5002] el0_svc_common+0x138/0x258 [ 77.562422][ T5002] do_el0_svc+0x58/0x14c [ 77.563608][ T5002] el0_svc+0x78/0x1e0 [ 77.564719][ T5002] el0t_64_sync_handler+0xcc/0xe4 [ 77.566179][ T5002] el0t_64_sync+0x1a0/0x1a4 [ 77.579233][ T4995] FAULT_INJECTION: forcing a failure. [ 77.579233][ T4995] name failslab, interval 1, probability 0, space 0, times 0 [ 77.582808][ T4995] CPU: 0 PID: 4995 Comm: syz-executor.2 Not tainted 5.15.188-syzkaller #0 [ 77.585177][ T4995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.588001][ T4995] Call trace: [ 77.588872][ T4995] dump_backtrace+0x0/0x43c [ 77.590104][ T4995] show_stack+0x2c/0x3c [ 77.591265][ T4995] __dump_stack+0x30/0x40 [ 77.592556][ T4995] dump_stack_lvl+0xf8/0x160 [ 77.593802][ T4995] dump_stack+0x1c/0x5c [ 77.594978][ T4995] should_fail+0x3c0/0x51c [ 77.596198][ T4995] __should_failslab+0xbc/0x10c [ 77.597493][ T4995] should_failslab+0x10/0x28 [ 77.598781][ T4995] slab_pre_alloc_hook+0x64/0xec [ 77.600171][ T4995] __kmalloc_node+0xb8/0x520 [ 77.601487][ T4995] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 77.603031][ T4995] nbd_start_device+0x14c/0xb40 [ 77.604347][ T4995] nbd_ioctl+0x514/0xc50 [ 77.605588][ T4995] blkdev_ioctl+0x5f8/0xbb8 [ 77.606873][ T4995] block_ioctl+0xa4/0x118 [ 77.608053][ T4995] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.609523][ T4995] invoke_syscall+0x98/0x2b8 [ 77.610830][ T4995] el0_svc_common+0x138/0x258 [ 77.612175][ T4995] do_el0_svc+0x58/0x14c [ 77.613356][ T4995] el0_svc+0x78/0x1e0 [ 77.614594][ T4995] el0t_64_sync_handler+0xcc/0xe4 [ 77.616053][ T4995] el0t_64_sync+0x1a0/0x1a4 [ 77.633110][ T5000] FAULT_INJECTION: forcing a failure. [ 77.633110][ T5000] name failslab, interval 1, probability 0, space 0, times 0 [ 77.643736][ T4986] kobject: can not set name properly! [ 77.699338][ T5000] CPU: 1 PID: 5000 Comm: syz-executor.4 Not tainted 5.15.188-syzkaller #0 [ 77.701969][ T5000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.704865][ T5000] Call trace: [ 77.705873][ T5000] dump_backtrace+0x0/0x43c [ 77.707179][ T5000] show_stack+0x2c/0x3c [ 77.708465][ T5000] __dump_stack+0x30/0x40 [ 77.709501][ T5002] debugfs: out of free dentries, can not create directory 'nbd1' [ 77.709646][ T5000] dump_stack_lvl+0xf8/0x160 [ 77.712056][ T5002] block nbd1: Failed to create debugfs dir for 'nbd1' [ 77.713140][ T5000] dump_stack+0x1c/0x5c [ 77.713156][ T5000] should_fail+0x3c0/0x51c [ 77.717562][ T5000] __should_failslab+0xbc/0x10c [ 77.719025][ T5000] should_failslab+0x10/0x28 [ 77.720266][ T5000] slab_pre_alloc_hook+0x64/0xec [ 77.721708][ T5000] __kmalloc_node+0xb8/0x520 [ 77.722998][ T5000] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.724612][ T5000] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.726251][ T5000] nbd_start_device+0x14c/0xb40 [ 77.727651][ T5000] nbd_ioctl+0x514/0xc50 [ 77.728831][ T5000] blkdev_ioctl+0x5f8/0xbb8 [ 77.730121][ T5000] block_ioctl+0xa4/0x118 [ 77.731375][ T5000] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.732813][ T5000] invoke_syscall+0x98/0x2b8 [ 77.734129][ T5000] el0_svc_common+0x138/0x258 [ 77.735415][ T5000] do_el0_svc+0x58/0x14c [ 77.736662][ T5000] el0_svc+0x78/0x1e0 [ 77.737783][ T5000] el0t_64_sync_handler+0xcc/0xe4 [ 77.739172][ T5000] el0t_64_sync+0x1a0/0x1a4 [ 77.808805][ T5010] block nbd0: shutting down sockets [ 77.849486][ T5010] FAULT_INJECTION: forcing a failure. [ 77.849486][ T5010] name failslab, interval 1, probability 0, space 0, times 0 [ 77.853043][ T5010] CPU: 0 PID: 5010 Comm: syz-executor.0 Not tainted 5.15.188-syzkaller #0 [ 77.855445][ T5010] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.858296][ T5010] Call trace: [ 77.859199][ T5010] dump_backtrace+0x0/0x43c [ 77.860489][ T5010] show_stack+0x2c/0x3c [ 77.861662][ T5010] __dump_stack+0x30/0x40 [ 77.862827][ T5010] dump_stack_lvl+0xf8/0x160 [ 77.864148][ T5010] dump_stack+0x1c/0x5c [ 77.865267][ T5010] should_fail+0x3c0/0x51c [ 77.866551][ T5010] __should_failslab+0xbc/0x10c [ 77.867958][ T5010] should_failslab+0x10/0x28 [ 77.869221][ T5010] slab_pre_alloc_hook+0x64/0xec [ 77.870649][ T5010] __kmalloc_node+0xb8/0x520 [ 77.871976][ T5010] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 77.873534][ T5010] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 77.875107][ T5010] nbd_start_device+0x14c/0xb40 [ 77.876542][ T5010] nbd_ioctl+0x514/0xc50 [ 77.877712][ T5010] blkdev_ioctl+0x5f8/0xbb8 [ 77.878966][ T5010] block_ioctl+0xa4/0x118 [ 77.880145][ T5010] __arm64_sys_ioctl+0x14c/0x1c8 [ 77.881503][ T5010] invoke_syscall+0x98/0x2b8 [ 77.882950][ T5010] el0_svc_common+0x138/0x258 [ 77.884230][ T5010] do_el0_svc+0x58/0x14c [ 77.885406][ T5010] el0_svc+0x78/0x1e0 [ 77.886665][ T5010] el0t_64_sync_handler+0xcc/0xe4 [ 77.888187][ T5010] el0t_64_sync+0x1a0/0x1a4 [ 77.903338][ T5000] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 77.905598][ T5021] block nbd3: shutting down sockets [ 77.926590][ T5018] block nbd2: shutting down sockets [ 77.952724][ T5015] ------------[ cut here ]------------ [ 77.954310][ T5015] kernfs: can not remove 'nr_tags', no directory [ 77.969177][ T5020] block nbd1: shutting down sockets [ 77.971765][ T5020] FAULT_INJECTION: forcing a failure. [ 77.971765][ T5020] name failslab, interval 1, probability 0, space 0, times 0 [ 77.977459][ T5020] CPU: 1 PID: 5020 Comm: syz-executor.1 Not tainted 5.15.188-syzkaller #0 [ 77.979992][ T5020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.981769][ T5015] WARNING: CPU: 0 PID: 5015 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 77.982867][ T5020] Call trace: [ 77.985731][ T5015] Modules linked in: [ 77.986682][ T5020] dump_backtrace+0x0/0x43c [ 77.987767][ T5015] CPU: 0 PID: 5015 Comm: syz-executor.3 Not tainted 5.15.188-syzkaller #0 [ 77.988995][ T5020] show_stack+0x2c/0x3c [ 77.991322][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 77.992497][ T5020] __dump_stack+0x30/0x40 [ 77.995348][ T5015] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 77.996635][ T5020] dump_stack_lvl+0xf8/0x160 [ 77.998869][ T5015] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.000246][ T5020] dump_stack+0x1c/0x5c [ 78.001883][ T5015] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.003031][ T5020] should_fail+0x3c0/0x51c [ 78.004802][ T5015] sp : ffff80001f927790 [ 78.006031][ T5020] __should_failslab+0xbc/0x10c [ 78.007220][ T5015] x29: ffff80001f927790 x28: ffff0000cc83b000 x27: 0000000000000000 [ 78.008598][ T5020] should_failslab+0x10/0x28 [ 78.008617][ T5020] slab_pre_alloc_hook+0x64/0xec [ 78.010959][ T5015] [ 78.012238][ T5020] kmem_cache_alloc+0x94/0x3e4 [ 78.013680][ T5015] x26: 0000000000000002 [ 78.014304][ T5020] new_inode_pseudo+0x10c/0x1fc [ 78.015588][ T5015] x25: ffff80001491ad28 [ 78.016764][ T5020] new_inode+0x38/0x174 [ 78.018149][ T5015] x24: 1ffff000022f87f8 [ 78.019352][ T5020] debugfs_create_dir+0xec/0x3f4 [ 78.020495][ T5015] [ 78.021960][ T5020] nbd_start_device+0x3c8/0xb40 [ 78.023380][ T5015] x23: dfff800000000000 [ 78.024074][ T5020] nbd_ioctl+0x514/0xc50 [ 78.025367][ T5015] x22: ffff80001491ad60 [ 78.026534][ T5020] blkdev_ioctl+0x5f8/0xbb8 [ 78.027657][ T5015] x21: 0000000000000000 [ 78.028977][ T5020] block_ioctl+0xa4/0x118 [ 78.030148][ T5015] [ 78.031364][ T5020] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.032487][ T5015] x20: 0000000000000000 [ 78.033251][ T5020] invoke_syscall+0x98/0x2b8 [ 78.034640][ T5015] x19: ffff8000117c4020 [ 78.035864][ T5020] el0_svc_common+0x138/0x258 [ 78.037092][ T5015] x18: 0000000000000002 [ 78.038242][ T5020] do_el0_svc+0x58/0x14c [ 78.039509][ T5015] [ 78.040783][ T5020] el0_svc+0x78/0x1e0 [ 78.041958][ T5015] x17: 0000000040000000 [ 78.042616][ T5020] el0t_64_sync_handler+0xcc/0xe4 [ 78.043805][ T5015] x16: ffff8000111d162c [ 78.044975][ T5020] el0t_64_sync+0x1a0/0x1a4 [ 78.046292][ T5015] x15: 0000000000000002 [ 78.049977][ T5015] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 78.052225][ T5015] x11: 0000000000000000 x10: 0000000000000000 x9 : 2fdd2d68a6636b00 [ 78.052773][ T5010] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.054510][ T5015] x8 : 2fdd2d68a6636b00 x7 : 0000000000000000 x6 : 0000000000000000 [ 78.054532][ T5015] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a734e84 [ 78.054548][ T5015] x2 : ffff0001a10b3d50 x1 : 0000000100000000 x0 : 000000000000002e [ 78.054565][ T5015] Call trace: [ 78.054570][ T5015] kernfs_remove_by_name_ns+0xcc/0x158 [ 78.054585][ T5015] sysfs_remove_group+0xf8/0x288 [ 78.054595][ T5015] sysfs_remove_groups+0x5c/0xb4 [ 78.054604][ T5015] __kobject_del+0x90/0x2d4 [ 78.054614][ T5015] kobject_del+0x48/0x68 [ 78.054622][ T5015] blk_mq_sysfs_unregister+0x198/0x268 [ 78.054631][ T5015] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 78.054642][ T5015] nbd_start_device+0x14c/0xb40 [ 78.054652][ T5015] nbd_ioctl+0x514/0xc50 [ 78.054661][ T5015] blkdev_ioctl+0x5f8/0xbb8 [ 78.054669][ T5015] block_ioctl+0xa4/0x118 [ 78.054679][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.054690][ T5015] invoke_syscall+0x98/0x2b8 [ 78.054700][ T5015] el0_svc_common+0x138/0x258 [ 78.054710][ T5015] do_el0_svc+0x58/0x14c [ 78.054719][ T5015] el0_svc+0x78/0x1e0 [ 78.054728][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 78.054736][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 78.054745][ T5015] irq event stamp: 2284 [ 78.054749][ T5015] hardirqs last enabled at (2283): [] finish_lock_switch+0xb0/0x1c4 [ 78.054762][ T5015] hardirqs last disabled at (2284): [] el1_dbg+0x24/0x80 [ 78.054785][ T5015] softirqs last enabled at (2278): [] handle_softirqs+0xa4c/0xbf0 [ 78.054799][ T5015] softirqs last disabled at (2253): [] __irq_exit_rcu+0x240/0x440 [ 78.054812][ T5015] ---[ end trace 9a7576a492d76216 ]--- [ 78.059553][ T5018] FAULT_INJECTION: forcing a failure. [ 78.059553][ T5018] name failslab, interval 1, probability 0, space 0, times 0 [ 78.131628][ T5020] debugfs: out of free dentries, can not create directory 'nbd1' [ 78.149423][ T5020] block nbd1: Failed to create debugfs dir for 'nbd1' [ 78.177856][ T5026] block nbd4: shutting down sockets [ 78.214291][ T5015] ------------[ cut here ]------------ [ 78.220986][ T5026] FAULT_INJECTION: forcing a failure. [ 78.220986][ T5026] name failslab, interval 1, probability 0, space 0, times 0 [ 78.224813][ T5015] kernfs: can not remove 'nr_reserved_tags', no directory [ 78.227378][ T5015] WARNING: CPU: 1 PID: 5015 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 78.230074][ T5015] Modules linked in: [ 78.231235][ T5015] CPU: 1 PID: 5015 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 78.234271][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.237179][ T5015] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 78.239700][ T5015] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.241464][ T5015] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.243039][ T5015] sp : ffff80001f927790 [ 78.244256][ T5015] x29: ffff80001f927790 x28: ffff0000cc83b000 x27: 0000000000000000 [ 78.246635][ T5015] x26: 0000000000000002 x25: ffff80001491ad30 x24: 1ffff000022f87f8 [ 78.249133][ T5015] x23: dfff800000000000 x22: ffff80001491adc0 x21: 0000000000000000 [ 78.251437][ T5015] x20: 0000000000000000 x19: ffff8000117c4060 x18: 0000000000000002 [ 78.253783][ T5015] x17: 0000000040000000 x16: ffff8000111d162c x15: 0000000000000002 [ 78.256020][ T5015] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 78.258430][ T5015] x11: 0000000000000000 x10: 0000000000000000 x9 : 2fdd2d68a6636b00 [ 78.260781][ T5015] x8 : 2fdd2d68a6636b00 x7 : 0000000000000000 x6 : 0000000000000000 [ 78.263056][ T5015] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a734e84 [ 78.264365][ T5018] CPU: 0 PID: 5018 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 78.265385][ T5015] x2 : ffff0001a10d4d50 x1 : 0000000100000000 [ 78.268483][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.268496][ T5018] Call trace: [ 78.270234][ T5015] x0 : 0000000000000037 [ 78.273095][ T5018] dump_backtrace+0x0/0x43c [ 78.273983][ T5015] [ 78.273991][ T5015] Call trace: [ 78.275245][ T5018] show_stack+0x2c/0x3c [ 78.276543][ T5015] kernfs_remove_by_name_ns+0xcc/0x158 [ 78.277235][ T5018] __dump_stack+0x30/0x40 [ 78.278179][ T5015] sysfs_remove_group+0xf8/0x288 [ 78.279341][ T5018] dump_stack_lvl+0xf8/0x160 [ 78.280854][ T5015] sysfs_remove_groups+0x5c/0xb4 [ 78.282087][ T5018] dump_stack+0x1c/0x5c [ 78.283459][ T5015] __kobject_del+0x90/0x2d4 [ 78.284778][ T5018] should_fail+0x3c0/0x51c [ 78.286124][ T5015] kobject_del+0x48/0x68 [ 78.287252][ T5018] __should_failslab+0xbc/0x10c [ 78.288544][ T5015] blk_mq_sysfs_unregister+0x198/0x268 [ 78.289771][ T5018] should_failslab+0x10/0x28 [ 78.290993][ T5015] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 78.292389][ T5018] slab_pre_alloc_hook+0x64/0xec [ 78.293910][ T5015] nbd_start_device+0x14c/0xb40 [ 78.295158][ T5018] __kmalloc_node+0xb8/0x520 [ 78.296800][ T5015] nbd_ioctl+0x514/0xc50 [ 78.298198][ T5018] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.299729][ T5015] blkdev_ioctl+0x5f8/0xbb8 [ 78.301079][ T5018] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.302307][ T5015] block_ioctl+0xa4/0x118 [ 78.304019][ T5018] nbd_start_device+0x14c/0xb40 [ 78.305303][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.306929][ T5018] nbd_ioctl+0x514/0xc50 [ 78.308098][ T5015] invoke_syscall+0x98/0x2b8 [ 78.309493][ T5018] blkdev_ioctl+0x5f8/0xbb8 [ 78.310945][ T5015] el0_svc_common+0x138/0x258 [ 78.312129][ T5018] block_ioctl+0xa4/0x118 [ 78.313435][ T5015] do_el0_svc+0x58/0x14c [ 78.314733][ T5018] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.316075][ T5015] el0_svc+0x78/0x1e0 [ 78.317360][ T5018] invoke_syscall+0x98/0x2b8 [ 78.318583][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 78.320057][ T5018] el0_svc_common+0x138/0x258 [ 78.321189][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 78.322615][ T5018] do_el0_svc+0x58/0x14c [ 78.324079][ T5015] irq event stamp: 2830 [ 78.325466][ T5018] el0_svc+0x78/0x1e0 [ 78.326709][ T5015] hardirqs last enabled at (2829): [] finish_lock_switch+0xb0/0x1c4 [ 78.327934][ T5018] el0t_64_sync_handler+0xcc/0xe4 [ 78.329111][ T5015] hardirqs last disabled at (2830): [] el1_dbg+0x24/0x80 [ 78.330169][ T5018] el0t_64_sync+0x1a0/0x1a4 [ 78.332962][ T5015] softirqs last enabled at (2824): [] handle_softirqs+0xa4c/0xbf0 [ 78.340890][ T5015] softirqs last disabled at (2809): [] __irq_exit_rcu+0x240/0x440 [ 78.343647][ T5015] ---[ end trace 9a7576a492d76217 ]--- [ 78.366127][ T5026] CPU: 1 PID: 5026 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 78.369085][ T5026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.372029][ T5026] Call trace: [ 78.372962][ T5026] dump_backtrace+0x0/0x43c [ 78.374283][ T5026] show_stack+0x2c/0x3c [ 78.375576][ T5026] __dump_stack+0x30/0x40 [ 78.376808][ T5026] dump_stack_lvl+0xf8/0x160 [ 78.378116][ T5026] dump_stack+0x1c/0x5c [ 78.379313][ T5026] should_fail+0x3c0/0x51c [ 78.380760][ T5026] __should_failslab+0xbc/0x10c [ 78.382180][ T5026] should_failslab+0x10/0x28 [ 78.383438][ T5026] slab_pre_alloc_hook+0x64/0xec [ 78.384926][ T5026] __kmalloc_node+0xb8/0x520 [ 78.386292][ T5026] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.387838][ T5026] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.389446][ T5026] nbd_start_device+0x14c/0xb40 [ 78.390922][ T5026] nbd_ioctl+0x514/0xc50 [ 78.392213][ T5026] blkdev_ioctl+0x5f8/0xbb8 [ 78.393633][ T5026] block_ioctl+0xa4/0x118 [ 78.394995][ T5026] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.396374][ T5026] invoke_syscall+0x98/0x2b8 [ 78.397654][ T5026] el0_svc_common+0x138/0x258 [ 78.399028][ T5026] do_el0_svc+0x58/0x14c [ 78.400247][ T5026] el0_svc+0x78/0x1e0 [ 78.401395][ T5026] el0t_64_sync_handler+0xcc/0xe4 [ 78.402817][ T5026] el0t_64_sync+0x1a0/0x1a4 [ 78.413448][ T5026] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.420771][ T5015] ------------[ cut here ]------------ [ 78.431702][ T5035] block nbd1: shutting down sockets [ 78.433496][ T5034] block nbd0: shutting down sockets [ 78.439280][ T5032] FAULT_INJECTION: forcing a failure. [ 78.439280][ T5032] name failslab, interval 1, probability 0, space 0, times 0 [ 78.452622][ T5015] kernfs: can not remove 'cpu_list', no directory [ 78.459630][ T5032] CPU: 1 PID: 5032 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 78.462501][ T5032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.465388][ T5032] Call trace: [ 78.466309][ T5032] dump_backtrace+0x0/0x43c [ 78.467639][ T5032] show_stack+0x2c/0x3c [ 78.468828][ T5032] __dump_stack+0x30/0x40 [ 78.470126][ T5032] dump_stack_lvl+0xf8/0x160 [ 78.471450][ T5032] dump_stack+0x1c/0x5c [ 78.472838][ T5032] should_fail+0x3c0/0x51c [ 78.474051][ T5032] __should_failslab+0xbc/0x10c [ 78.475421][ T5032] should_failslab+0x10/0x28 [ 78.476732][ T5032] slab_pre_alloc_hook+0x64/0xec [ 78.478095][ T5032] kmem_cache_alloc+0x94/0x3e4 [ 78.479420][ T5032] new_inode_pseudo+0x10c/0x1fc [ 78.480816][ T5032] new_inode+0x38/0x174 [ 78.482018][ T5032] debugfs_create_dir+0xec/0x3f4 [ 78.483567][ T5032] nbd_start_device+0x3c8/0xb40 [ 78.484977][ T5032] nbd_ioctl+0x514/0xc50 [ 78.486185][ T5032] blkdev_ioctl+0x5f8/0xbb8 [ 78.487562][ T5032] block_ioctl+0xa4/0x118 [ 78.488814][ T5032] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.490253][ T5032] invoke_syscall+0x98/0x2b8 [ 78.491583][ T5032] el0_svc_common+0x138/0x258 [ 78.493047][ T5032] do_el0_svc+0x58/0x14c [ 78.494262][ T5032] el0_svc+0x78/0x1e0 [ 78.495363][ T5032] el0t_64_sync_handler+0xcc/0xe4 [ 78.496792][ T5032] el0t_64_sync+0x1a0/0x1a4 [ 78.504215][ T5015] WARNING: CPU: 1 PID: 5015 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 78.507147][ T5015] Modules linked in: [ 78.508267][ T5015] CPU: 1 PID: 5015 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 78.511097][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.513966][ T5015] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 78.516194][ T5015] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.517912][ T5015] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 78.519548][ T5015] sp : ffff80001f927790 [ 78.520788][ T5015] x29: ffff80001f927790 x28: ffff0000cc83b000 x27: 0000000000000000 [ 78.523197][ T5015] x26: 0000000000000002 x25: ffff80001491ad38 x24: 1ffff000022f87f8 [ 78.525558][ T5015] x23: dfff800000000000 x22: ffff80001491ae20 x21: 0000000000000000 [ 78.527849][ T5015] x20: 0000000000000000 x19: ffff8000117c40a0 x18: 0000000000000002 [ 78.530062][ T5015] x17: 0000000040000000 x16: ffff8000111d162c x15: 0000000000000002 [ 78.532360][ T5015] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 78.534649][ T5015] x11: 0000000000000000 x10: 0000000000000000 x9 : 2fdd2d68a6636b00 [ 78.536565][ T5015] x8 : 2fdd2d68a6636b00 x7 : 0000000000000000 x6 : 0000000000000000 [ 78.538491][ T5015] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a734e84 [ 78.540643][ T5015] x2 : ffff0001a10d4d50 x1 : 0000000100000000 x0 : 000000000000002f [ 78.540980][ T5018] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.542903][ T5015] Call trace: [ 78.542911][ T5015] kernfs_remove_by_name_ns+0xcc/0x158 [ 78.542930][ T5015] sysfs_remove_group+0xf8/0x288 [ 78.542940][ T5015] sysfs_remove_groups+0x5c/0xb4 [ 78.550348][ T5015] __kobject_del+0x90/0x2d4 [ 78.551603][ T5015] kobject_del+0x48/0x68 [ 78.552792][ T5015] blk_mq_sysfs_unregister+0x198/0x268 [ 78.554306][ T5015] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 78.555942][ T5015] nbd_start_device+0x14c/0xb40 [ 78.556284][ T5032] debugfs: out of free dentries, can not create directory 'nbd1' [ 78.557373][ T5015] nbd_ioctl+0x514/0xc50 [ 78.557390][ T5015] blkdev_ioctl+0x5f8/0xbb8 [ 78.557400][ T5015] block_ioctl+0xa4/0x118 [ 78.561931][ T5032] block nbd1: Failed to create debugfs dir for 'nbd1' [ 78.562052][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.566687][ T5015] invoke_syscall+0x98/0x2b8 [ 78.568014][ T5015] el0_svc_common+0x138/0x258 [ 78.569469][ T5015] do_el0_svc+0x58/0x14c [ 78.570777][ T5015] el0_svc+0x78/0x1e0 [ 78.571930][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 78.573495][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 78.574828][ T5015] irq event stamp: 3062 [ 78.576028][ T5015] hardirqs last enabled at (3061): [] finish_lock_switch+0xb0/0x1c4 [ 78.578943][ T5015] hardirqs last disabled at (3062): [] el1_dbg+0x24/0x80 [ 78.581480][ T5015] softirqs last enabled at (3030): [] handle_softirqs+0xa4c/0xbf0 [ 78.584345][ T5015] softirqs last disabled at (2833): [] __irq_exit_rcu+0x240/0x440 [ 78.587009][ T5015] ---[ end trace 9a7576a492d76218 ]--- [ 78.598472][ T5015] FAULT_INJECTION: forcing a failure. [ 78.598472][ T5015] name failslab, interval 1, probability 0, space 0, times 0 [ 78.608225][ T5031] FAULT_INJECTION: forcing a failure. [ 78.608225][ T5031] name failslab, interval 1, probability 0, space 0, times 0 [ 78.617652][ T5031] CPU: 0 PID: 5031 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 78.620543][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.623541][ T5031] Call trace: [ 78.624465][ T5031] dump_backtrace+0x0/0x43c [ 78.625693][ T5031] show_stack+0x2c/0x3c [ 78.626876][ T5031] __dump_stack+0x30/0x40 [ 78.628091][ T5031] dump_stack_lvl+0xf8/0x160 [ 78.629361][ T5031] dump_stack+0x1c/0x5c [ 78.630538][ T5031] should_fail+0x3c0/0x51c [ 78.631866][ T5031] __should_failslab+0xbc/0x10c [ 78.633246][ T5031] should_failslab+0x10/0x28 [ 78.634598][ T5031] slab_pre_alloc_hook+0x64/0xec [ 78.636059][ T5031] __kmalloc_node+0xb8/0x520 [ 78.637373][ T5031] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.638857][ T5031] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.640488][ T5031] nbd_start_device+0x14c/0xb40 [ 78.641872][ T5031] nbd_ioctl+0x514/0xc50 [ 78.643116][ T5031] blkdev_ioctl+0x5f8/0xbb8 [ 78.644423][ T5031] block_ioctl+0xa4/0x118 [ 78.645680][ T5031] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.647059][ T5031] invoke_syscall+0x98/0x2b8 [ 78.648354][ T5031] el0_svc_common+0x138/0x258 [ 78.649749][ T5031] do_el0_svc+0x58/0x14c [ 78.650929][ T5031] el0_svc+0x78/0x1e0 [ 78.652086][ T5031] el0t_64_sync_handler+0xcc/0xe4 [ 78.653541][ T5031] el0t_64_sync+0x1a0/0x1a4 [ 78.654873][ T5015] CPU: 1 PID: 5015 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 78.657754][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.660600][ T5015] Call trace: [ 78.661514][ T5015] dump_backtrace+0x0/0x43c [ 78.662789][ T5015] show_stack+0x2c/0x3c [ 78.663961][ T5015] __dump_stack+0x30/0x40 [ 78.665140][ T5015] dump_stack_lvl+0xf8/0x160 [ 78.666391][ T5015] dump_stack+0x1c/0x5c [ 78.667529][ T5015] should_fail+0x3c0/0x51c [ 78.668762][ T5015] __should_failslab+0xbc/0x10c [ 78.670182][ T5015] should_failslab+0x10/0x28 [ 78.671511][ T5015] slab_pre_alloc_hook+0x64/0xec [ 78.672985][ T5015] __kmalloc_node+0xb8/0x520 [ 78.674284][ T5015] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.675760][ T5015] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.677420][ T5015] nbd_start_device+0x14c/0xb40 [ 78.678839][ T5015] nbd_ioctl+0x514/0xc50 [ 78.680070][ T5015] blkdev_ioctl+0x5f8/0xbb8 [ 78.681344][ T5015] block_ioctl+0xa4/0x118 [ 78.682582][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.683945][ T5015] invoke_syscall+0x98/0x2b8 [ 78.685249][ T5015] el0_svc_common+0x138/0x258 [ 78.686580][ T5015] do_el0_svc+0x58/0x14c [ 78.687846][ T5015] el0_svc+0x78/0x1e0 [ 78.688924][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 78.690391][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 78.695377][ T5015] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 78.713164][ T5031] Increasing nr_hw_queues to 2 fails, fallback to 1 1970/01/01 00:01:18 executed programs: 97 [ 78.776478][ T5047] block nbd4: shutting down sockets [ 78.778796][ T5045] block nbd2: shutting down sockets [ 78.786270][ T5049] block nbd1: shutting down sockets [ 78.799153][ T5049] FAULT_INJECTION: forcing a failure. [ 78.799153][ T5049] name failslab, interval 1, probability 0, space 0, times 0 [ 78.803163][ T5049] CPU: 0 PID: 5049 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 78.806070][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.809059][ T5049] Call trace: [ 78.810047][ T5049] dump_backtrace+0x0/0x43c [ 78.811275][ T5049] show_stack+0x2c/0x3c [ 78.812682][ T5049] __dump_stack+0x30/0x40 [ 78.813885][ T5049] dump_stack_lvl+0xf8/0x160 [ 78.815291][ T5049] dump_stack+0x1c/0x5c [ 78.816604][ T5049] should_fail+0x3c0/0x51c [ 78.817871][ T5049] __should_failslab+0xbc/0x10c [ 78.819227][ T5049] should_failslab+0x10/0x28 [ 78.820494][ T5049] slab_pre_alloc_hook+0x64/0xec [ 78.821871][ T5049] kmem_cache_alloc+0x94/0x3e4 [ 78.823194][ T5049] new_inode_pseudo+0x10c/0x1fc [ 78.824627][ T5049] new_inode+0x38/0x174 [ 78.825882][ T5049] debugfs_create_dir+0xec/0x3f4 [ 78.827358][ T5049] nbd_start_device+0x3c8/0xb40 [ 78.828720][ T5049] nbd_ioctl+0x514/0xc50 [ 78.830060][ T5049] blkdev_ioctl+0x5f8/0xbb8 [ 78.831341][ T5049] block_ioctl+0xa4/0x118 [ 78.832639][ T5049] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.833997][ T5049] invoke_syscall+0x98/0x2b8 [ 78.835378][ T5049] el0_svc_common+0x138/0x258 [ 78.836695][ T5049] do_el0_svc+0x58/0x14c [ 78.838030][ T5049] el0_svc+0x78/0x1e0 [ 78.839187][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 78.840709][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 78.874288][ T5047] FAULT_INJECTION: forcing a failure. [ 78.874288][ T5047] name failslab, interval 1, probability 0, space 0, times 0 [ 78.879328][ T5045] FAULT_INJECTION: forcing a failure. [ 78.879328][ T5045] name failslab, interval 1, probability 0, space 0, times 0 [ 78.885794][ T5060] block nbd0: shutting down sockets [ 78.885810][ T5047] CPU: 0 PID: 5047 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 78.890392][ T5047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.893262][ T5047] Call trace: [ 78.894218][ T5047] dump_backtrace+0x0/0x43c [ 78.895575][ T5047] show_stack+0x2c/0x3c [ 78.896807][ T5047] __dump_stack+0x30/0x40 [ 78.897999][ T5047] dump_stack_lvl+0xf8/0x160 [ 78.899411][ T5047] dump_stack+0x1c/0x5c [ 78.900616][ T5047] should_fail+0x3c0/0x51c [ 78.901835][ T5047] __should_failslab+0xbc/0x10c [ 78.903233][ T5047] should_failslab+0x10/0x28 [ 78.904573][ T5047] slab_pre_alloc_hook+0x64/0xec [ 78.905955][ T5047] __kmalloc_node+0xb8/0x520 [ 78.907309][ T5047] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 78.908924][ T5047] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 78.910584][ T5047] nbd_start_device+0x14c/0xb40 [ 78.912020][ T5047] nbd_ioctl+0x514/0xc50 [ 78.913269][ T5047] blkdev_ioctl+0x5f8/0xbb8 [ 78.914580][ T5047] block_ioctl+0xa4/0x118 [ 78.915936][ T5047] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.917394][ T5047] invoke_syscall+0x98/0x2b8 [ 78.918767][ T5047] el0_svc_common+0x138/0x258 [ 78.920132][ T5047] do_el0_svc+0x58/0x14c [ 78.921399][ T5047] el0_svc+0x78/0x1e0 [ 78.922579][ T5047] el0t_64_sync_handler+0xcc/0xe4 [ 78.923977][ T5047] el0t_64_sync+0x1a0/0x1a4 [ 78.930613][ T5045] CPU: 0 PID: 5045 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 78.933578][ T5045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 78.936459][ T5045] Call trace: [ 78.937308][ T5045] dump_backtrace+0x0/0x43c [ 78.938656][ T5045] show_stack+0x2c/0x3c [ 78.939895][ T5045] __dump_stack+0x30/0x40 [ 78.941155][ T5045] dump_stack_lvl+0xf8/0x160 [ 78.942523][ T5045] dump_stack+0x1c/0x5c [ 78.943781][ T5045] should_fail+0x3c0/0x51c [ 78.945130][ T5045] __should_failslab+0xbc/0x10c [ 78.946518][ T5045] should_failslab+0x10/0x28 [ 78.947853][ T5045] slab_pre_alloc_hook+0x64/0xec [ 78.949301][ T5045] __kmalloc_node+0xb8/0x520 [ 78.950675][ T5045] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 78.952343][ T5045] nbd_start_device+0x14c/0xb40 [ 78.953780][ T5045] nbd_ioctl+0x514/0xc50 [ 78.955048][ T5045] blkdev_ioctl+0x5f8/0xbb8 [ 78.956394][ T5045] block_ioctl+0xa4/0x118 [ 78.957617][ T5045] __arm64_sys_ioctl+0x14c/0x1c8 [ 78.959029][ T5045] invoke_syscall+0x98/0x2b8 [ 78.960411][ T5045] el0_svc_common+0x138/0x258 [ 78.961837][ T5045] do_el0_svc+0x58/0x14c [ 78.963105][ T5045] el0_svc+0x78/0x1e0 [ 78.964263][ T5045] el0t_64_sync_handler+0xcc/0xe4 [ 78.965767][ T5045] el0t_64_sync+0x1a0/0x1a4 [ 78.975916][ T5059] block nbd3: shutting down sockets [ 78.982896][ T5055] FAULT_INJECTION: forcing a failure. [ 78.982896][ T5055] name failslab, interval 1, probability 0, space 0, times 0 [ 78.987552][ T5049] debugfs: out of free dentries, can not create directory 'nbd1' [ 78.992331][ T5049] block nbd1: Failed to create debugfs dir for 'nbd1' [ 79.005396][ T5055] CPU: 1 PID: 5055 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 79.008317][ T5055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.011239][ T5055] Call trace: [ 79.012164][ T5055] dump_backtrace+0x0/0x43c [ 79.013488][ T5055] show_stack+0x2c/0x3c [ 79.014727][ T5055] __dump_stack+0x30/0x40 [ 79.015905][ T5055] dump_stack_lvl+0xf8/0x160 [ 79.017203][ T5055] dump_stack+0x1c/0x5c [ 79.018373][ T5055] should_fail+0x3c0/0x51c [ 79.019585][ T5055] __should_failslab+0xbc/0x10c [ 79.021295][ T5055] should_failslab+0x10/0x28 [ 79.022676][ T5055] slab_pre_alloc_hook+0x64/0xec [ 79.023872][ T5047] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.024130][ T5055] __kmalloc_node+0xb8/0x520 [ 79.027209][ T5055] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 79.028809][ T5055] nbd_start_device+0x14c/0xb40 [ 79.030193][ T5055] nbd_ioctl+0x514/0xc50 [ 79.031418][ T5055] blkdev_ioctl+0x5f8/0xbb8 [ 79.032699][ T5055] block_ioctl+0xa4/0x118 [ 79.033906][ T5055] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.035284][ T5055] invoke_syscall+0x98/0x2b8 [ 79.036576][ T5055] el0_svc_common+0x138/0x258 [ 79.037878][ T5055] do_el0_svc+0x58/0x14c [ 79.039079][ T5055] el0_svc+0x78/0x1e0 [ 79.040188][ T5055] el0t_64_sync_handler+0xcc/0xe4 [ 79.041598][ T5055] el0t_64_sync+0x1a0/0x1a4 [ 79.069291][ T5056] FAULT_INJECTION: forcing a failure. [ 79.069291][ T5056] name failslab, interval 1, probability 0, space 0, times 0 [ 79.072787][ T5056] CPU: 0 PID: 5056 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 79.075594][ T5056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.078397][ T5056] Call trace: [ 79.079358][ T5056] dump_backtrace+0x0/0x43c [ 79.080679][ T5056] show_stack+0x2c/0x3c [ 79.081894][ T5056] __dump_stack+0x30/0x40 [ 79.083156][ T5056] dump_stack_lvl+0xf8/0x160 [ 79.084532][ T5056] dump_stack+0x1c/0x5c [ 79.085693][ T5056] should_fail+0x3c0/0x51c [ 79.086969][ T5056] __should_failslab+0xbc/0x10c [ 79.088325][ T5056] should_failslab+0x10/0x28 [ 79.089655][ T5056] slab_pre_alloc_hook+0x64/0xec [ 79.091041][ T5056] __kmalloc_node+0xb8/0x520 [ 79.092456][ T5056] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.094063][ T5056] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.095781][ T5056] nbd_start_device+0x14c/0xb40 [ 79.097156][ T5056] nbd_ioctl+0x514/0xc50 [ 79.098348][ T5056] blkdev_ioctl+0x5f8/0xbb8 [ 79.099652][ T5056] block_ioctl+0xa4/0x118 [ 79.100887][ T5056] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.102242][ T5056] invoke_syscall+0x98/0x2b8 [ 79.103533][ T5056] el0_svc_common+0x138/0x258 [ 79.104757][ T5056] do_el0_svc+0x58/0x14c [ 79.105997][ T5056] el0_svc+0x78/0x1e0 [ 79.107144][ T5056] el0t_64_sync_handler+0xcc/0xe4 [ 79.108618][ T5056] el0t_64_sync+0x1a0/0x1a4 [ 79.166241][ T5066] block nbd1: shutting down sockets [ 79.183243][ T5066] FAULT_INJECTION: forcing a failure. [ 79.183243][ T5066] name failslab, interval 1, probability 0, space 0, times 0 [ 79.192137][ T5056] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.196775][ T5066] CPU: 0 PID: 5066 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 79.199657][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.202571][ T5066] Call trace: [ 79.203522][ T5066] dump_backtrace+0x0/0x43c [ 79.204842][ T5066] show_stack+0x2c/0x3c [ 79.206019][ T5066] __dump_stack+0x30/0x40 [ 79.207330][ T5066] dump_stack_lvl+0xf8/0x160 [ 79.208769][ T5066] dump_stack+0x1c/0x5c [ 79.209956][ T5066] should_fail+0x3c0/0x51c [ 79.211243][ T5066] __should_failslab+0xbc/0x10c [ 79.212690][ T5066] should_failslab+0x10/0x28 [ 79.213996][ T5066] slab_pre_alloc_hook+0x64/0xec [ 79.215457][ T5066] kmem_cache_alloc+0x94/0x3e4 [ 79.216879][ T5066] new_inode_pseudo+0x10c/0x1fc [ 79.218300][ T5066] new_inode+0x38/0x174 [ 79.219486][ T5066] debugfs_create_dir+0xec/0x3f4 [ 79.220836][ T5066] nbd_start_device+0x3c8/0xb40 [ 79.222470][ T5066] nbd_ioctl+0x514/0xc50 [ 79.223718][ T5066] blkdev_ioctl+0x5f8/0xbb8 [ 79.225082][ T5066] block_ioctl+0xa4/0x118 [ 79.226386][ T5066] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.227815][ T5066] invoke_syscall+0x98/0x2b8 [ 79.229187][ T5066] el0_svc_common+0x138/0x258 [ 79.230528][ T5066] do_el0_svc+0x58/0x14c [ 79.231778][ T5066] el0_svc+0x78/0x1e0 [ 79.232922][ T5066] el0t_64_sync_handler+0xcc/0xe4 [ 79.234376][ T5066] el0t_64_sync+0x1a0/0x1a4 [ 79.247237][ T5070] block nbd2: shutting down sockets [ 79.275975][ T5073] block nbd4: shutting down sockets [ 79.279012][ T5071] block nbd0: shutting down sockets [ 79.289416][ T5070] FAULT_INJECTION: forcing a failure. [ 79.289416][ T5070] name failslab, interval 1, probability 0, space 0, times 0 [ 79.293199][ T5070] CPU: 1 PID: 5070 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 79.296151][ T5070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.298352][ T5066] debugfs: out of free dentries, can not create directory 'nbd1' [ 79.299433][ T5070] Call trace: [ 79.299441][ T5070] dump_backtrace+0x0/0x43c [ 79.299458][ T5070] show_stack+0x2c/0x3c [ 79.299466][ T5070] __dump_stack+0x30/0x40 [ 79.299478][ T5070] dump_stack_lvl+0xf8/0x160 [ 79.302348][ T5066] block nbd1: Failed to create debugfs dir for 'nbd1' [ 79.302844][ T5070] dump_stack+0x1c/0x5c [ 79.311202][ T5070] should_fail+0x3c0/0x51c [ 79.312507][ T5070] __should_failslab+0xbc/0x10c [ 79.313873][ T5070] should_failslab+0x10/0x28 [ 79.315202][ T5070] slab_pre_alloc_hook+0x64/0xec [ 79.316764][ T5070] __kmalloc_node+0xb8/0x520 [ 79.318259][ T5070] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.319887][ T5070] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.321570][ T5070] nbd_start_device+0x14c/0xb40 [ 79.322979][ T5070] nbd_ioctl+0x514/0xc50 [ 79.324241][ T5070] blkdev_ioctl+0x5f8/0xbb8 [ 79.325624][ T5070] block_ioctl+0xa4/0x118 [ 79.326839][ T5070] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.328292][ T5070] invoke_syscall+0x98/0x2b8 [ 79.329691][ T5070] el0_svc_common+0x138/0x258 [ 79.331053][ T5070] do_el0_svc+0x58/0x14c [ 79.332450][ T5070] el0_svc+0x78/0x1e0 [ 79.333717][ T5070] el0t_64_sync_handler+0xcc/0xe4 [ 79.335245][ T5070] el0t_64_sync+0x1a0/0x1a4 [ 79.346816][ T5070] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.379079][ T5073] FAULT_INJECTION: forcing a failure. [ 79.379079][ T5073] name failslab, interval 1, probability 0, space 0, times 0 [ 79.389076][ T5071] FAULT_INJECTION: forcing a failure. [ 79.389076][ T5071] name failslab, interval 1, probability 0, space 0, times 0 [ 79.413623][ T5071] CPU: 0 PID: 5071 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 79.416768][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.419639][ T5071] Call trace: [ 79.420614][ T5071] dump_backtrace+0x0/0x43c [ 79.421935][ T5071] show_stack+0x2c/0x3c [ 79.423154][ T5071] __dump_stack+0x30/0x40 [ 79.424376][ T5071] dump_stack_lvl+0xf8/0x160 [ 79.425728][ T5071] dump_stack+0x1c/0x5c [ 79.426914][ T5071] should_fail+0x3c0/0x51c [ 79.428175][ T5071] __should_failslab+0xbc/0x10c [ 79.429624][ T5071] should_failslab+0x10/0x28 [ 79.430960][ T5071] slab_pre_alloc_hook+0x64/0xec [ 79.432368][ T5071] __kmalloc_node+0xb8/0x520 [ 79.433662][ T5071] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.435261][ T5071] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.436878][ T5071] nbd_start_device+0x14c/0xb40 [ 79.438358][ T5071] nbd_ioctl+0x514/0xc50 [ 79.439603][ T5071] blkdev_ioctl+0x5f8/0xbb8 [ 79.440876][ T5071] block_ioctl+0xa4/0x118 [ 79.442078][ T5071] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.443511][ T5071] invoke_syscall+0x98/0x2b8 [ 79.444881][ T5071] el0_svc_common+0x138/0x258 [ 79.446327][ T5071] do_el0_svc+0x58/0x14c [ 79.447597][ T5071] el0_svc+0x78/0x1e0 [ 79.448818][ T5071] el0t_64_sync_handler+0xcc/0xe4 [ 79.450269][ T5071] el0t_64_sync+0x1a0/0x1a4 [ 79.475275][ T5073] CPU: 0 PID: 5073 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 79.478144][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.481118][ T5073] Call trace: [ 79.482060][ T5073] dump_backtrace+0x0/0x43c [ 79.483446][ T5073] show_stack+0x2c/0x3c [ 79.484672][ T5073] __dump_stack+0x30/0x40 [ 79.485860][ T5073] dump_stack_lvl+0xf8/0x160 [ 79.487219][ T5073] dump_stack+0x1c/0x5c [ 79.488464][ T5073] should_fail+0x3c0/0x51c [ 79.489765][ T5073] __should_failslab+0xbc/0x10c [ 79.491210][ T5073] should_failslab+0x10/0x28 [ 79.492543][ T5073] slab_pre_alloc_hook+0x64/0xec [ 79.494075][ T5073] __kmalloc_node+0xb8/0x520 [ 79.495450][ T5073] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.497158][ T5073] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.498833][ T5073] nbd_start_device+0x14c/0xb40 [ 79.500242][ T5073] nbd_ioctl+0x514/0xc50 [ 79.501499][ T5073] blkdev_ioctl+0x5f8/0xbb8 [ 79.502746][ T5073] block_ioctl+0xa4/0x118 [ 79.504016][ T5073] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.505571][ T5073] invoke_syscall+0x98/0x2b8 [ 79.506954][ T5073] el0_svc_common+0x138/0x258 [ 79.508360][ T5073] do_el0_svc+0x58/0x14c [ 79.509564][ T5073] el0_svc+0x78/0x1e0 [ 79.510702][ T5073] el0t_64_sync_handler+0xcc/0xe4 [ 79.512294][ T5073] el0t_64_sync+0x1a0/0x1a4 [ 79.545596][ T5071] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.610995][ T5073] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.685719][ T5094] block nbd1: shutting down sockets [ 79.688958][ T5089] block nbd2: shutting down sockets [ 79.691176][ T5096] block nbd3: shutting down sockets [ 79.719672][ T5090] FAULT_INJECTION: forcing a failure. [ 79.719672][ T5090] name failslab, interval 1, probability 0, space 0, times 0 [ 79.723834][ T5090] CPU: 1 PID: 5090 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 79.726817][ T5090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.729898][ T5090] Call trace: [ 79.730916][ T5090] dump_backtrace+0x0/0x43c [ 79.732239][ T5090] show_stack+0x2c/0x3c [ 79.733508][ T5090] __dump_stack+0x30/0x40 [ 79.734940][ T5090] dump_stack_lvl+0xf8/0x160 [ 79.736194][ T5090] dump_stack+0x1c/0x5c [ 79.737548][ T5090] should_fail+0x3c0/0x51c [ 79.738818][ T5090] __should_failslab+0xbc/0x10c [ 79.740226][ T5090] should_failslab+0x10/0x28 [ 79.741640][ T5090] slab_pre_alloc_hook+0x64/0xec [ 79.743139][ T5090] kmem_cache_alloc+0x94/0x3e4 [ 79.744626][ T5090] new_inode_pseudo+0x10c/0x1fc [ 79.746039][ T5090] new_inode+0x38/0x174 [ 79.747226][ T5090] debugfs_create_dir+0xec/0x3f4 [ 79.748678][ T5090] nbd_start_device+0x3c8/0xb40 [ 79.750012][ T5090] nbd_ioctl+0x514/0xc50 [ 79.751287][ T5090] blkdev_ioctl+0x5f8/0xbb8 [ 79.752716][ T5090] block_ioctl+0xa4/0x118 [ 79.753911][ T5090] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.755293][ T5090] invoke_syscall+0x98/0x2b8 [ 79.756666][ T5090] el0_svc_common+0x138/0x258 [ 79.758044][ T5090] do_el0_svc+0x58/0x14c [ 79.759274][ T5090] el0_svc+0x78/0x1e0 [ 79.760485][ T5090] el0t_64_sync_handler+0xcc/0xe4 [ 79.761922][ T5090] el0t_64_sync+0x1a0/0x1a4 [ 79.768418][ T5089] FAULT_INJECTION: forcing a failure. [ 79.768418][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 79.780817][ T5089] CPU: 1 PID: 5089 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 79.780822][ T5096] FAULT_INJECTION: forcing a failure. [ 79.780822][ T5096] name failslab, interval 1, probability 0, space 0, times 0 [ 79.783837][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.783850][ T5089] Call trace: [ 79.783854][ T5089] dump_backtrace+0x0/0x43c [ 79.783869][ T5089] show_stack+0x2c/0x3c [ 79.783877][ T5089] __dump_stack+0x30/0x40 [ 79.783888][ T5089] dump_stack_lvl+0xf8/0x160 [ 79.796739][ T5089] dump_stack+0x1c/0x5c [ 79.797957][ T5089] should_fail+0x3c0/0x51c [ 79.799226][ T5089] __should_failslab+0xbc/0x10c [ 79.800657][ T5089] should_failslab+0x10/0x28 [ 79.802009][ T5089] slab_pre_alloc_hook+0x64/0xec [ 79.803470][ T5089] __kmalloc_node+0xb8/0x520 [ 79.804783][ T5089] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.806490][ T5089] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.808050][ T5089] nbd_start_device+0x14c/0xb40 [ 79.809502][ T5089] nbd_ioctl+0x514/0xc50 [ 79.810730][ T5089] blkdev_ioctl+0x5f8/0xbb8 [ 79.812116][ T5089] block_ioctl+0xa4/0x118 [ 79.813471][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.814946][ T5089] invoke_syscall+0x98/0x2b8 [ 79.816303][ T5089] el0_svc_common+0x138/0x258 [ 79.817673][ T5089] do_el0_svc+0x58/0x14c [ 79.818975][ T5089] el0_svc+0x78/0x1e0 [ 79.820144][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 79.821554][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 79.822886][ T5096] CPU: 0 PID: 5096 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 79.825789][ T5096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.828715][ T5096] Call trace: [ 79.829616][ T5096] dump_backtrace+0x0/0x43c [ 79.830898][ T5096] show_stack+0x2c/0x3c [ 79.832075][ T5096] __dump_stack+0x30/0x40 [ 79.833391][ T5096] dump_stack_lvl+0xf8/0x160 [ 79.834759][ T5096] dump_stack+0x1c/0x5c [ 79.835979][ T5096] should_fail+0x3c0/0x51c [ 79.837302][ T5096] __should_failslab+0xbc/0x10c [ 79.838710][ T5096] should_failslab+0x10/0x28 [ 79.839963][ T5096] slab_pre_alloc_hook+0x64/0xec [ 79.840403][ T5090] debugfs: out of free dentries, can not create directory 'nbd1' [ 79.841432][ T5096] __kmalloc_node+0xb8/0x520 [ 79.843734][ T5090] block nbd1: Failed to create debugfs dir for 'nbd1' [ 79.844956][ T5096] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 79.848634][ T5096] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 79.850251][ T5096] nbd_start_device+0x14c/0xb40 [ 79.851772][ T5096] nbd_ioctl+0x514/0xc50 [ 79.852971][ T5096] blkdev_ioctl+0x5f8/0xbb8 [ 79.854242][ T5096] block_ioctl+0xa4/0x118 [ 79.855431][ T5096] __arm64_sys_ioctl+0x14c/0x1c8 [ 79.856806][ T5096] invoke_syscall+0x98/0x2b8 [ 79.858109][ T5096] el0_svc_common+0x138/0x258 [ 79.859539][ T5096] do_el0_svc+0x58/0x14c [ 79.860777][ T5096] el0_svc+0x78/0x1e0 [ 79.861949][ T5096] el0t_64_sync_handler+0xcc/0xe4 [ 79.863375][ T5096] el0t_64_sync+0x1a0/0x1a4 [ 79.875305][ T5096] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.907616][ T5109] block nbd4: Device being setup by another task [ 79.909985][ T5102] block nbd4: shutting down sockets [ 79.926784][ T5089] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 79.967232][ T5105] FAULT_INJECTION: forcing a failure. [ 79.967232][ T5105] name failslab, interval 1, probability 0, space 0, times 0 [ 79.970924][ T5105] CPU: 1 PID: 5105 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 79.973734][ T5105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.976527][ T5105] Call trace: [ 79.977492][ T5105] dump_backtrace+0x0/0x43c [ 79.978793][ T5105] show_stack+0x2c/0x3c [ 79.980068][ T5105] __dump_stack+0x30/0x40 [ 79.981283][ T5105] dump_stack_lvl+0xf8/0x160 [ 79.982655][ T5105] dump_stack+0x1c/0x5c [ 79.983824][ T5105] should_fail+0x3c0/0x51c [ 79.985113][ T5105] __should_failslab+0xbc/0x10c [ 79.986532][ T5105] should_failslab+0x10/0x28 [ 79.987835][ T5105] slab_pre_alloc_hook+0x64/0xec [ 79.989312][ T5105] kmem_cache_alloc+0x94/0x3e4 [ 79.990674][ T5105] new_inode_pseudo+0x10c/0x1fc [ 79.992056][ T5105] new_inode+0x38/0x174 [ 79.993232][ T5105] debugfs_create_dir+0xec/0x3f4 [ 79.994717][ T5105] nbd_start_device+0x3c8/0xb40 [ 79.996086][ T5105] nbd_ioctl+0x514/0xc50 [ 79.997320][ T5105] blkdev_ioctl+0x5f8/0xbb8 [ 79.998606][ T5105] block_ioctl+0xa4/0x118 [ 79.999866][ T5105] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.001319][ T5105] invoke_syscall+0x98/0x2b8 [ 80.002686][ T5105] el0_svc_common+0x138/0x258 [ 80.004140][ T5105] do_el0_svc+0x58/0x14c [ 80.005372][ T5105] el0_svc+0x78/0x1e0 [ 80.006646][ T5105] el0t_64_sync_handler+0xcc/0xe4 [ 80.008190][ T5105] el0t_64_sync+0x1a0/0x1a4 [ 80.014227][ T5105] debugfs: out of free dentries, can not create directory 'nbd4' [ 80.018021][ T5105] block nbd4: Failed to create debugfs dir for 'nbd4' [ 80.096620][ T5113] block nbd0: shutting down sockets [ 80.106456][ T5114] block nbd1: shutting down sockets [ 80.118548][ T5114] FAULT_INJECTION: forcing a failure. [ 80.118548][ T5114] name failslab, interval 1, probability 0, space 0, times 0 [ 80.123745][ T5114] CPU: 1 PID: 5114 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 80.126665][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.129592][ T5114] Call trace: [ 80.130534][ T5114] dump_backtrace+0x0/0x43c [ 80.131793][ T5114] show_stack+0x2c/0x3c [ 80.132912][ T5114] __dump_stack+0x30/0x40 [ 80.134196][ T5114] dump_stack_lvl+0xf8/0x160 [ 80.135642][ T5114] dump_stack+0x1c/0x5c [ 80.136835][ T5114] should_fail+0x3c0/0x51c [ 80.138028][ T5114] __should_failslab+0xbc/0x10c [ 80.139384][ T5114] should_failslab+0x10/0x28 [ 80.140661][ T5114] slab_pre_alloc_hook+0x64/0xec [ 80.142094][ T5114] kmem_cache_alloc+0x94/0x3e4 [ 80.143429][ T5114] new_inode_pseudo+0x10c/0x1fc [ 80.144855][ T5114] new_inode+0x38/0x174 [ 80.146085][ T5114] debugfs_create_dir+0xec/0x3f4 [ 80.147540][ T5114] nbd_start_device+0x3c8/0xb40 [ 80.148912][ T5114] nbd_ioctl+0x514/0xc50 [ 80.150133][ T5114] blkdev_ioctl+0x5f8/0xbb8 [ 80.151426][ T5114] block_ioctl+0xa4/0x118 [ 80.152693][ T5114] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.154113][ T5114] invoke_syscall+0x98/0x2b8 [ 80.155372][ T5114] el0_svc_common+0x138/0x258 [ 80.156720][ T5114] do_el0_svc+0x58/0x14c [ 80.157936][ T5114] el0_svc+0x78/0x1e0 [ 80.159150][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 80.160602][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 80.170875][ T5114] debugfs: out of free dentries, can not create directory 'nbd1' [ 80.173595][ T5114] block nbd1: Failed to create debugfs dir for 'nbd1' [ 80.179490][ T5126] block nbd2: shutting down sockets [ 80.186779][ T5113] FAULT_INJECTION: forcing a failure. [ 80.186779][ T5113] name failslab, interval 1, probability 0, space 0, times 0 [ 80.199504][ T5113] CPU: 1 PID: 5113 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 80.202464][ T5113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.205457][ T5113] Call trace: [ 80.206388][ T5113] dump_backtrace+0x0/0x43c [ 80.207712][ T5113] show_stack+0x2c/0x3c [ 80.208917][ T5113] __dump_stack+0x30/0x40 [ 80.210172][ T5113] dump_stack_lvl+0xf8/0x160 [ 80.211498][ T5113] dump_stack+0x1c/0x5c [ 80.212654][ T5113] should_fail+0x3c0/0x51c [ 80.213949][ T5113] __should_failslab+0xbc/0x10c [ 80.215361][ T5113] should_failslab+0x10/0x28 [ 80.216708][ T5113] slab_pre_alloc_hook+0x64/0xec [ 80.218146][ T5113] __kmalloc_node+0xb8/0x520 [ 80.219491][ T5113] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.221084][ T5113] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.222815][ T5113] nbd_start_device+0x14c/0xb40 [ 80.224219][ T5113] nbd_ioctl+0x514/0xc50 [ 80.225471][ T5113] blkdev_ioctl+0x5f8/0xbb8 [ 80.226899][ T5113] block_ioctl+0xa4/0x118 [ 80.228172][ T5113] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.229609][ T5113] invoke_syscall+0x98/0x2b8 [ 80.230982][ T5113] el0_svc_common+0x138/0x258 [ 80.232431][ T5113] do_el0_svc+0x58/0x14c [ 80.233622][ T5113] el0_svc+0x78/0x1e0 [ 80.234755][ T5113] el0t_64_sync_handler+0xcc/0xe4 [ 80.236218][ T5113] el0t_64_sync+0x1a0/0x1a4 [ 80.255624][ T5128] block nbd3: shutting down sockets [ 80.255624][ T5127] block nbd4: shutting down sockets [ 80.280328][ T5118] FAULT_INJECTION: forcing a failure. [ 80.280328][ T5118] name failslab, interval 1, probability 0, space 0, times 0 [ 80.289213][ T5123] FAULT_INJECTION: forcing a failure. [ 80.289213][ T5123] name failslab, interval 1, probability 0, space 0, times 0 [ 80.289595][ T5122] FAULT_INJECTION: forcing a failure. [ 80.289595][ T5122] name failslab, interval 1, probability 0, space 0, times 0 [ 80.292893][ T5123] CPU: 0 PID: 5123 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 80.299144][ T5123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.302069][ T5123] Call trace: [ 80.302982][ T5123] dump_backtrace+0x0/0x43c [ 80.304303][ T5123] show_stack+0x2c/0x3c [ 80.305464][ T5123] __dump_stack+0x30/0x40 [ 80.306752][ T5123] dump_stack_lvl+0xf8/0x160 [ 80.308057][ T5123] dump_stack+0x1c/0x5c [ 80.309226][ T5123] should_fail+0x3c0/0x51c [ 80.310519][ T5123] __should_failslab+0xbc/0x10c [ 80.311862][ T5123] should_failslab+0x10/0x28 [ 80.312300][ T5113] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.313197][ T5123] slab_pre_alloc_hook+0x64/0xec [ 80.316534][ T5123] __kmalloc_node+0xb8/0x520 [ 80.317919][ T5123] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.319510][ T5123] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.321202][ T5123] nbd_start_device+0x14c/0xb40 [ 80.322659][ T5123] nbd_ioctl+0x514/0xc50 [ 80.323874][ T5123] blkdev_ioctl+0x5f8/0xbb8 [ 80.325141][ T5123] block_ioctl+0xa4/0x118 [ 80.326351][ T5123] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.327847][ T5123] invoke_syscall+0x98/0x2b8 [ 80.329194][ T5123] el0_svc_common+0x138/0x258 [ 80.330545][ T5123] do_el0_svc+0x58/0x14c [ 80.331729][ T5123] el0_svc+0x78/0x1e0 [ 80.332906][ T5123] el0t_64_sync_handler+0xcc/0xe4 [ 80.334356][ T5123] el0t_64_sync+0x1a0/0x1a4 [ 80.342910][ T5122] CPU: 1 PID: 5122 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 80.345910][ T5122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.348852][ T5122] Call trace: [ 80.349785][ T5122] dump_backtrace+0x0/0x43c [ 80.351060][ T5122] show_stack+0x2c/0x3c [ 80.352239][ T5122] __dump_stack+0x30/0x40 [ 80.353513][ T5122] dump_stack_lvl+0xf8/0x160 [ 80.354791][ T5122] dump_stack+0x1c/0x5c [ 80.355958][ T5122] should_fail+0x3c0/0x51c [ 80.356126][ T5123] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.357221][ T5122] __should_failslab+0xbc/0x10c [ 80.357239][ T5122] should_failslab+0x10/0x28 [ 80.357249][ T5122] slab_pre_alloc_hook+0x64/0xec [ 80.357259][ T5122] __kmalloc_node+0xb8/0x520 [ 80.357268][ T5122] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.366206][ T5122] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.367848][ T5122] nbd_start_device+0x14c/0xb40 [ 80.369296][ T5122] nbd_ioctl+0x514/0xc50 [ 80.370564][ T5122] blkdev_ioctl+0x5f8/0xbb8 [ 80.371910][ T5122] block_ioctl+0xa4/0x118 [ 80.373207][ T5122] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.374727][ T5122] invoke_syscall+0x98/0x2b8 [ 80.376129][ T5122] el0_svc_common+0x138/0x258 [ 80.377462][ T5122] do_el0_svc+0x58/0x14c [ 80.378681][ T5122] el0_svc+0x78/0x1e0 [ 80.379882][ T5122] el0t_64_sync_handler+0xcc/0xe4 [ 80.381395][ T5122] el0t_64_sync+0x1a0/0x1a4 [ 80.383187][ T5118] CPU: 1 PID: 5118 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 80.386175][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.389128][ T5118] Call trace: [ 80.390098][ T5118] dump_backtrace+0x0/0x43c [ 80.391449][ T5118] show_stack+0x2c/0x3c [ 80.392677][ T5118] __dump_stack+0x30/0x40 [ 80.393906][ T5118] dump_stack_lvl+0xf8/0x160 [ 80.395288][ T5118] dump_stack+0x1c/0x5c [ 80.396492][ T5118] should_fail+0x3c0/0x51c [ 80.397708][ T5118] __should_failslab+0xbc/0x10c [ 80.399020][ T5118] should_failslab+0x10/0x28 [ 80.400353][ T5118] slab_pre_alloc_hook+0x64/0xec [ 80.401733][ T5118] __kmalloc_node+0xb8/0x520 [ 80.403123][ T5118] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.404683][ T5118] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.406362][ T5118] nbd_start_device+0x14c/0xb40 [ 80.407773][ T5118] nbd_ioctl+0x514/0xc50 [ 80.409038][ T5118] blkdev_ioctl+0x5f8/0xbb8 [ 80.410311][ T5118] block_ioctl+0xa4/0x118 [ 80.411550][ T5118] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.413010][ T5118] invoke_syscall+0x98/0x2b8 [ 80.414344][ T5118] el0_svc_common+0x138/0x258 [ 80.415786][ T5118] do_el0_svc+0x58/0x14c [ 80.417031][ T5118] el0_svc+0x78/0x1e0 [ 80.418181][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 80.419637][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 80.425769][ T5118] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.433297][ T5122] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.465835][ T5135] block nbd1: shutting down sockets [ 80.493109][ T5135] FAULT_INJECTION: forcing a failure. [ 80.493109][ T5135] name failslab, interval 1, probability 0, space 0, times 0 [ 80.497352][ T5135] CPU: 0 PID: 5135 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 80.500170][ T5135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.503037][ T5135] Call trace: [ 80.503996][ T5135] dump_backtrace+0x0/0x43c [ 80.505172][ T5135] show_stack+0x2c/0x3c [ 80.506365][ T5135] __dump_stack+0x30/0x40 [ 80.507614][ T5135] dump_stack_lvl+0xf8/0x160 [ 80.509081][ T5135] dump_stack+0x1c/0x5c [ 80.510261][ T5135] should_fail+0x3c0/0x51c [ 80.511546][ T5135] __should_failslab+0xbc/0x10c [ 80.512956][ T5135] should_failslab+0x10/0x28 [ 80.514280][ T5135] slab_pre_alloc_hook+0x64/0xec [ 80.515697][ T5135] kmem_cache_alloc+0x94/0x3e4 [ 80.517196][ T5135] new_inode_pseudo+0x10c/0x1fc [ 80.518865][ T5135] new_inode+0x38/0x174 [ 80.520089][ T5135] debugfs_create_dir+0xec/0x3f4 [ 80.521430][ T5135] nbd_start_device+0x3c8/0xb40 [ 80.522853][ T5135] nbd_ioctl+0x514/0xc50 [ 80.524112][ T5135] blkdev_ioctl+0x5f8/0xbb8 [ 80.525404][ T5135] block_ioctl+0xa4/0x118 [ 80.526711][ T5135] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.528151][ T5135] invoke_syscall+0x98/0x2b8 [ 80.529587][ T5135] el0_svc_common+0x138/0x258 [ 80.531012][ T5135] do_el0_svc+0x58/0x14c [ 80.532261][ T5135] el0_svc+0x78/0x1e0 [ 80.533538][ T5135] el0t_64_sync_handler+0xcc/0xe4 [ 80.535063][ T5135] el0t_64_sync+0x1a0/0x1a4 [ 80.576974][ T5140] block nbd3: shutting down sockets [ 80.610058][ T5135] debugfs: out of free dentries, can not create directory 'nbd1' [ 80.625610][ T5135] block nbd1: Failed to create debugfs dir for 'nbd1' [ 80.655717][ T5150] block nbd0: shutting down sockets [ 80.661446][ T5140] FAULT_INJECTION: forcing a failure. [ 80.661446][ T5140] name failslab, interval 1, probability 0, space 0, times 0 [ 80.665061][ T5140] CPU: 1 PID: 5140 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 80.667881][ T5140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.670806][ T5140] Call trace: [ 80.671785][ T5140] dump_backtrace+0x0/0x43c [ 80.673079][ T5140] show_stack+0x2c/0x3c [ 80.674313][ T5140] __dump_stack+0x30/0x40 [ 80.675523][ T5140] dump_stack_lvl+0xf8/0x160 [ 80.676827][ T5140] dump_stack+0x1c/0x5c [ 80.678027][ T5140] should_fail+0x3c0/0x51c [ 80.679259][ T5140] __should_failslab+0xbc/0x10c [ 80.680736][ T5140] should_failslab+0x10/0x28 [ 80.682023][ T5140] slab_pre_alloc_hook+0x64/0xec [ 80.683488][ T5140] __kmalloc_node+0xb8/0x520 [ 80.684760][ T5140] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.686291][ T5140] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.688035][ T5140] nbd_start_device+0x14c/0xb40 [ 80.689479][ T5140] nbd_ioctl+0x514/0xc50 [ 80.690709][ T5140] blkdev_ioctl+0x5f8/0xbb8 [ 80.691957][ T5140] block_ioctl+0xa4/0x118 [ 80.693231][ T5140] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.694602][ T5140] invoke_syscall+0x98/0x2b8 [ 80.695950][ T5140] el0_svc_common+0x138/0x258 [ 80.697251][ T5140] do_el0_svc+0x58/0x14c [ 80.698482][ T5140] el0_svc+0x78/0x1e0 [ 80.699624][ T5140] el0t_64_sync_handler+0xcc/0xe4 [ 80.701006][ T5140] el0t_64_sync+0x1a0/0x1a4 [ 80.716479][ T5140] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.747236][ T5151] block nbd4: shutting down sockets [ 80.755416][ T5154] block nbd2: Device being setup by another task [ 80.758487][ T5146] block nbd2: shutting down sockets [ 80.776979][ T5143] FAULT_INJECTION: forcing a failure. [ 80.776979][ T5143] name failslab, interval 1, probability 0, space 0, times 0 [ 80.779325][ T5148] FAULT_INJECTION: forcing a failure. [ 80.779325][ T5148] name failslab, interval 1, probability 0, space 0, times 0 [ 80.780954][ T5146] FAULT_INJECTION: forcing a failure. [ 80.780954][ T5146] name failslab, interval 1, probability 0, space 0, times 0 [ 80.784097][ T5148] CPU: 0 PID: 5148 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 80.790618][ T5148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.793582][ T5148] Call trace: [ 80.794558][ T5148] dump_backtrace+0x0/0x43c [ 80.795855][ T5148] show_stack+0x2c/0x3c [ 80.797021][ T5148] __dump_stack+0x30/0x40 [ 80.798350][ T5148] dump_stack_lvl+0xf8/0x160 [ 80.799716][ T5148] dump_stack+0x1c/0x5c [ 80.800988][ T5148] should_fail+0x3c0/0x51c [ 80.802299][ T5148] __should_failslab+0xbc/0x10c [ 80.803699][ T5148] should_failslab+0x10/0x28 [ 80.805115][ T5148] slab_pre_alloc_hook+0x64/0xec [ 80.806520][ T5148] __kmalloc_node+0xb8/0x520 [ 80.807826][ T5148] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.809420][ T5148] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.811069][ T5148] nbd_start_device+0x14c/0xb40 [ 80.812424][ T5148] nbd_ioctl+0x514/0xc50 [ 80.813691][ T5148] blkdev_ioctl+0x5f8/0xbb8 [ 80.815021][ T5148] block_ioctl+0xa4/0x118 [ 80.816242][ T5148] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.817650][ T5148] invoke_syscall+0x98/0x2b8 [ 80.819036][ T5148] el0_svc_common+0x138/0x258 [ 80.820293][ T5148] do_el0_svc+0x58/0x14c [ 80.821543][ T5148] el0_svc+0x78/0x1e0 [ 80.822655][ T5148] el0t_64_sync_handler+0xcc/0xe4 [ 80.824012][ T5148] el0t_64_sync+0x1a0/0x1a4 [ 80.834889][ T5146] CPU: 1 PID: 5146 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 80.837828][ T5146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.840695][ T5146] Call trace: [ 80.841587][ T5146] dump_backtrace+0x0/0x43c [ 80.842884][ T5146] show_stack+0x2c/0x3c [ 80.844108][ T5146] __dump_stack+0x30/0x40 [ 80.845265][ T5146] dump_stack_lvl+0xf8/0x160 [ 80.846524][ T5146] dump_stack+0x1c/0x5c [ 80.847657][ T5146] should_fail+0x3c0/0x51c [ 80.849012][ T5146] __should_failslab+0xbc/0x10c [ 80.850358][ T5146] should_failslab+0x10/0x28 [ 80.851622][ T5146] slab_pre_alloc_hook+0x64/0xec [ 80.853065][ T5146] kmem_cache_alloc+0x94/0x3e4 [ 80.854492][ T5146] new_inode_pseudo+0x10c/0x1fc [ 80.855856][ T5146] new_inode+0x38/0x174 [ 80.856988][ T5146] debugfs_create_dir+0xec/0x3f4 [ 80.858423][ T5146] nbd_start_device+0x3c8/0xb40 [ 80.859755][ T5146] nbd_ioctl+0x514/0xc50 [ 80.861016][ T5146] blkdev_ioctl+0x5f8/0xbb8 [ 80.862355][ T5146] block_ioctl+0xa4/0x118 [ 80.863541][ T5146] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.864938][ T5146] invoke_syscall+0x98/0x2b8 [ 80.866290][ T5146] el0_svc_common+0x138/0x258 [ 80.866758][ T5148] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.867602][ T5146] do_el0_svc+0x58/0x14c [ 80.867618][ T5146] el0_svc+0x78/0x1e0 [ 80.867628][ T5146] el0t_64_sync_handler+0xcc/0xe4 [ 80.867637][ T5146] el0t_64_sync+0x1a0/0x1a4 [ 80.881606][ T5143] CPU: 1 PID: 5143 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 80.884347][ T5143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.887116][ T5143] Call trace: [ 80.888056][ T5143] dump_backtrace+0x0/0x43c [ 80.888740][ T5146] debugfs: out of free dentries, can not create directory 'nbd2' [ 80.889300][ T5143] show_stack+0x2c/0x3c [ 80.892854][ T5143] __dump_stack+0x30/0x40 [ 80.894100][ T5143] dump_stack_lvl+0xf8/0x160 [ 80.895377][ T5143] dump_stack+0x1c/0x5c [ 80.896579][ T5143] should_fail+0x3c0/0x51c [ 80.897860][ T5143] __should_failslab+0xbc/0x10c [ 80.898713][ T5146] block nbd2: Failed to create debugfs dir for 'nbd2' [ 80.899221][ T5143] should_failslab+0x10/0x28 [ 80.902550][ T5143] slab_pre_alloc_hook+0x64/0xec [ 80.903983][ T5143] __kmalloc_node+0xb8/0x520 [ 80.905235][ T5143] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 80.906743][ T5143] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 80.908309][ T5143] nbd_start_device+0x14c/0xb40 [ 80.909665][ T5143] nbd_ioctl+0x514/0xc50 [ 80.910839][ T5143] blkdev_ioctl+0x5f8/0xbb8 [ 80.912136][ T5143] block_ioctl+0xa4/0x118 [ 80.913417][ T5143] __arm64_sys_ioctl+0x14c/0x1c8 [ 80.914815][ T5143] invoke_syscall+0x98/0x2b8 [ 80.916075][ T5143] el0_svc_common+0x138/0x258 [ 80.917417][ T5143] do_el0_svc+0x58/0x14c [ 80.918640][ T5143] el0_svc+0x78/0x1e0 [ 80.919722][ T5143] el0t_64_sync_handler+0xcc/0xe4 [ 80.921179][ T5143] el0t_64_sync+0x1a0/0x1a4 [ 80.929518][ T5143] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 80.965838][ T5156] block nbd1: shutting down sockets [ 80.972590][ T5156] FAULT_INJECTION: forcing a failure. [ 80.972590][ T5156] name failslab, interval 1, probability 0, space 0, times 0 [ 80.976315][ T5156] CPU: 1 PID: 5156 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 80.979047][ T5156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 80.981876][ T5156] Call trace: [ 80.982773][ T5156] dump_backtrace+0x0/0x43c [ 80.984063][ T5156] show_stack+0x2c/0x3c [ 80.985229][ T5156] __dump_stack+0x30/0x40 [ 80.986488][ T5156] dump_stack_lvl+0xf8/0x160 [ 80.987804][ T5156] dump_stack+0x1c/0x5c [ 80.988984][ T5156] should_fail+0x3c0/0x51c [ 80.990219][ T5156] __should_failslab+0xbc/0x10c [ 80.991618][ T5156] should_failslab+0x10/0x28 [ 80.992955][ T5156] slab_pre_alloc_hook+0x64/0xec [ 80.994404][ T5156] kmem_cache_alloc+0x94/0x3e4 [ 80.995668][ T5156] new_inode_pseudo+0x10c/0x1fc [ 80.996957][ T5156] new_inode+0x38/0x174 [ 80.998114][ T5156] debugfs_create_dir+0xec/0x3f4 [ 80.999491][ T5156] nbd_start_device+0x3c8/0xb40 [ 81.000888][ T5156] nbd_ioctl+0x514/0xc50 [ 81.002114][ T5156] blkdev_ioctl+0x5f8/0xbb8 [ 81.003430][ T5156] block_ioctl+0xa4/0x118 [ 81.004648][ T5156] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.006070][ T5156] invoke_syscall+0x98/0x2b8 [ 81.007423][ T5156] el0_svc_common+0x138/0x258 [ 81.008736][ T5156] do_el0_svc+0x58/0x14c [ 81.009924][ T5156] el0_svc+0x78/0x1e0 [ 81.011077][ T5156] el0t_64_sync_handler+0xcc/0xe4 [ 81.012589][ T5156] el0t_64_sync+0x1a0/0x1a4 [ 81.015885][ T5161] block nbd3: shutting down sockets [ 81.017776][ T5156] debugfs: out of free dentries, can not create directory 'nbd1' [ 81.020075][ T5156] block nbd1: Failed to create debugfs dir for 'nbd1' [ 81.079425][ T5159] FAULT_INJECTION: forcing a failure. [ 81.079425][ T5159] name failslab, interval 1, probability 0, space 0, times 0 [ 81.083140][ T5159] CPU: 0 PID: 5159 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 81.086053][ T5159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.088938][ T5159] Call trace: [ 81.089867][ T5159] dump_backtrace+0x0/0x43c [ 81.091169][ T5159] show_stack+0x2c/0x3c [ 81.092427][ T5159] __dump_stack+0x30/0x40 [ 81.093809][ T5159] dump_stack_lvl+0xf8/0x160 [ 81.095135][ T5159] dump_stack+0x1c/0x5c [ 81.095819][ T5166] block nbd2: shutting down sockets [ 81.096454][ T5159] should_fail+0x3c0/0x51c [ 81.096472][ T5159] __should_failslab+0xbc/0x10c [ 81.096483][ T5159] should_failslab+0x10/0x28 [ 81.098845][ T5167] block nbd4: shutting down sockets [ 81.099247][ T5159] slab_pre_alloc_hook+0x64/0xec [ 81.099266][ T5159] __kmalloc_node+0xb8/0x520 [ 81.099275][ T5159] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 81.108032][ T5159] nbd_start_device+0x14c/0xb40 [ 81.109528][ T5159] nbd_ioctl+0x514/0xc50 [ 81.110857][ T5159] blkdev_ioctl+0x5f8/0xbb8 [ 81.112206][ T5159] block_ioctl+0xa4/0x118 [ 81.113773][ T5159] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.115307][ T5159] invoke_syscall+0x98/0x2b8 [ 81.116729][ T5159] el0_svc_common+0x138/0x258 [ 81.118067][ T5159] do_el0_svc+0x58/0x14c [ 81.119285][ T5159] el0_svc+0x78/0x1e0 [ 81.120485][ T5159] el0t_64_sync_handler+0xcc/0xe4 [ 81.122096][ T5159] el0t_64_sync+0x1a0/0x1a4 [ 81.168428][ T5167] FAULT_INJECTION: forcing a failure. [ 81.168428][ T5167] name failslab, interval 1, probability 0, space 0, times 0 [ 81.173121][ T5167] CPU: 1 PID: 5167 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 81.176032][ T5167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.178964][ T5167] Call trace: [ 81.179937][ T5167] dump_backtrace+0x0/0x43c [ 81.181201][ T5167] show_stack+0x2c/0x3c [ 81.182368][ T5167] __dump_stack+0x30/0x40 [ 81.183591][ T5167] dump_stack_lvl+0xf8/0x160 [ 81.184894][ T5167] dump_stack+0x1c/0x5c [ 81.186062][ T5167] should_fail+0x3c0/0x51c [ 81.187325][ T5167] __should_failslab+0xbc/0x10c [ 81.188788][ T5167] should_failslab+0x10/0x28 [ 81.190091][ T5167] slab_pre_alloc_hook+0x64/0xec [ 81.191573][ T5167] __kmalloc_node+0xb8/0x520 [ 81.192978][ T5167] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.194659][ T5167] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.196275][ T5167] nbd_start_device+0x14c/0xb40 [ 81.197753][ T5167] nbd_ioctl+0x514/0xc50 [ 81.198951][ T5167] blkdev_ioctl+0x5f8/0xbb8 [ 81.200265][ T5167] block_ioctl+0xa4/0x118 [ 81.201483][ T5167] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.202920][ T5167] invoke_syscall+0x98/0x2b8 [ 81.204286][ T5167] el0_svc_common+0x138/0x258 [ 81.205683][ T5167] do_el0_svc+0x58/0x14c [ 81.206917][ T5167] el0_svc+0x78/0x1e0 [ 81.207390][ T5166] FAULT_INJECTION: forcing a failure. [ 81.207390][ T5166] name failslab, interval 1, probability 0, space 0, times 0 [ 81.208075][ T5167] el0t_64_sync_handler+0xcc/0xe4 [ 81.208091][ T5167] el0t_64_sync+0x1a0/0x1a4 [ 81.219317][ T5166] CPU: 1 PID: 5166 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 81.222359][ T5166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.225150][ T5166] Call trace: [ 81.225517][ T5167] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.226047][ T5166] dump_backtrace+0x0/0x43c [ 81.229198][ T5166] show_stack+0x2c/0x3c [ 81.230348][ T5166] __dump_stack+0x30/0x40 [ 81.231565][ T5166] dump_stack_lvl+0xf8/0x160 [ 81.232836][ T5166] dump_stack+0x1c/0x5c [ 81.233934][ T5166] should_fail+0x3c0/0x51c [ 81.235226][ T5166] __should_failslab+0xbc/0x10c [ 81.236597][ T5166] should_failslab+0x10/0x28 [ 81.237867][ T5166] slab_pre_alloc_hook+0x64/0xec [ 81.239226][ T5166] __kmalloc_node+0xb8/0x520 [ 81.240535][ T5166] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 81.242202][ T5166] nbd_start_device+0x14c/0xb40 [ 81.243587][ T5166] nbd_ioctl+0x514/0xc50 [ 81.244777][ T5166] blkdev_ioctl+0x5f8/0xbb8 [ 81.246012][ T5166] block_ioctl+0xa4/0x118 [ 81.247250][ T5166] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.248717][ T5166] invoke_syscall+0x98/0x2b8 [ 81.249978][ T5166] el0_svc_common+0x138/0x258 [ 81.251286][ T5166] do_el0_svc+0x58/0x14c [ 81.252499][ T5166] el0_svc+0x78/0x1e0 [ 81.253578][ T5166] el0t_64_sync_handler+0xcc/0xe4 [ 81.254979][ T5166] el0t_64_sync+0x1a0/0x1a4 [ 81.316562][ T5177] block nbd0: shutting down sockets [ 81.318818][ T5178] block nbd1: shutting down sockets [ 81.322197][ T5175] FAULT_INJECTION: forcing a failure. [ 81.322197][ T5175] name failslab, interval 1, probability 0, space 0, times 0 [ 81.327784][ T5175] CPU: 0 PID: 5175 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 81.330701][ T5175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.333500][ T5175] Call trace: [ 81.334416][ T5175] dump_backtrace+0x0/0x43c [ 81.335865][ T5175] show_stack+0x2c/0x3c [ 81.337072][ T5175] __dump_stack+0x30/0x40 [ 81.338295][ T5175] dump_stack_lvl+0xf8/0x160 [ 81.339555][ T5175] dump_stack+0x1c/0x5c [ 81.340822][ T5175] should_fail+0x3c0/0x51c [ 81.342007][ T5175] __should_failslab+0xbc/0x10c [ 81.343383][ T5175] should_failslab+0x10/0x28 [ 81.344695][ T5175] slab_pre_alloc_hook+0x64/0xec [ 81.346115][ T5175] kmem_cache_alloc+0x94/0x3e4 [ 81.347435][ T5175] new_inode_pseudo+0x10c/0x1fc [ 81.348839][ T5175] new_inode+0x38/0x174 [ 81.350014][ T5175] debugfs_create_dir+0xec/0x3f4 [ 81.351418][ T5175] nbd_start_device+0x3c8/0xb40 [ 81.352783][ T5175] nbd_ioctl+0x514/0xc50 [ 81.354057][ T5175] blkdev_ioctl+0x5f8/0xbb8 [ 81.355366][ T5175] block_ioctl+0xa4/0x118 [ 81.356622][ T5175] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.358166][ T5175] invoke_syscall+0x98/0x2b8 [ 81.359481][ T5175] el0_svc_common+0x138/0x258 [ 81.360872][ T5175] do_el0_svc+0x58/0x14c [ 81.362122][ T5175] el0_svc+0x78/0x1e0 [ 81.363268][ T5175] el0t_64_sync_handler+0xcc/0xe4 [ 81.364813][ T5175] el0t_64_sync+0x1a0/0x1a4 [ 81.381779][ T5175] debugfs: out of free dentries, can not create directory 'nbd1' [ 81.385313][ T5175] block nbd1: Failed to create debugfs dir for 'nbd1' [ 81.409454][ T5170] FAULT_INJECTION: forcing a failure. [ 81.409454][ T5170] name failslab, interval 1, probability 0, space 0, times 0 [ 81.413000][ T5170] CPU: 0 PID: 5170 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 81.415684][ T5170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.418402][ T5170] Call trace: [ 81.419256][ T5170] dump_backtrace+0x0/0x43c [ 81.420453][ T5170] show_stack+0x2c/0x3c [ 81.421596][ T5170] __dump_stack+0x30/0x40 [ 81.422785][ T5170] dump_stack_lvl+0xf8/0x160 [ 81.424044][ T5170] dump_stack+0x1c/0x5c [ 81.425166][ T5170] should_fail+0x3c0/0x51c [ 81.426457][ T5170] __should_failslab+0xbc/0x10c [ 81.427755][ T5170] should_failslab+0x10/0x28 [ 81.429040][ T5170] slab_pre_alloc_hook+0x64/0xec [ 81.430381][ T5170] __kmalloc_node+0xb8/0x520 [ 81.431680][ T5170] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.433219][ T5170] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.434906][ T5170] nbd_start_device+0x14c/0xb40 [ 81.436323][ T5170] nbd_ioctl+0x514/0xc50 [ 81.437542][ T5170] blkdev_ioctl+0x5f8/0xbb8 [ 81.438806][ T5170] block_ioctl+0xa4/0x118 [ 81.440059][ T5170] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.441474][ T5170] invoke_syscall+0x98/0x2b8 [ 81.442824][ T5170] el0_svc_common+0x138/0x258 [ 81.444165][ T5170] do_el0_svc+0x58/0x14c [ 81.445381][ T5170] el0_svc+0x78/0x1e0 [ 81.446506][ T5170] el0t_64_sync_handler+0xcc/0xe4 [ 81.447882][ T5170] el0t_64_sync+0x1a0/0x1a4 [ 81.481406][ T5170] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.485905][ T5186] block nbd4: shutting down sockets [ 81.490792][ T5187] block nbd2: shutting down sockets [ 81.505947][ T5181] block nbd3: shutting down sockets [ 81.547754][ T5186] FAULT_INJECTION: forcing a failure. [ 81.547754][ T5186] name failslab, interval 1, probability 0, space 0, times 0 [ 81.551590][ T5186] CPU: 1 PID: 5186 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 81.554434][ T5186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.557291][ T5186] Call trace: [ 81.558158][ T5186] dump_backtrace+0x0/0x43c [ 81.559323][ T5186] show_stack+0x2c/0x3c [ 81.560617][ T5186] __dump_stack+0x30/0x40 [ 81.561914][ T5186] dump_stack_lvl+0xf8/0x160 [ 81.563126][ T5186] dump_stack+0x1c/0x5c [ 81.564305][ T5186] should_fail+0x3c0/0x51c [ 81.565523][ T5186] __should_failslab+0xbc/0x10c [ 81.566854][ T5186] should_failslab+0x10/0x28 [ 81.568213][ T5186] slab_pre_alloc_hook+0x64/0xec [ 81.569597][ T5186] __kmalloc_node+0xb8/0x520 [ 81.570911][ T5186] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.572439][ T5186] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.574102][ T5186] nbd_start_device+0x14c/0xb40 [ 81.575443][ T5186] nbd_ioctl+0x514/0xc50 [ 81.576663][ T5186] blkdev_ioctl+0x5f8/0xbb8 [ 81.577918][ T5186] block_ioctl+0xa4/0x118 [ 81.579280][ T5186] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.580851][ T5186] invoke_syscall+0x98/0x2b8 [ 81.582100][ T5186] el0_svc_common+0x138/0x258 [ 81.583474][ T5186] do_el0_svc+0x58/0x14c [ 81.584737][ T5186] el0_svc+0x78/0x1e0 [ 81.585937][ T5186] el0t_64_sync_handler+0xcc/0xe4 [ 81.587365][ T5186] el0t_64_sync+0x1a0/0x1a4 [ 81.611721][ T5187] FAULT_INJECTION: forcing a failure. [ 81.611721][ T5187] name failslab, interval 1, probability 0, space 0, times 0 [ 81.618322][ T5181] FAULT_INJECTION: forcing a failure. [ 81.618322][ T5181] name failslab, interval 1, probability 0, space 0, times 0 [ 81.634209][ T5181] CPU: 1 PID: 5181 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 81.637204][ T5181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.640134][ T5181] Call trace: [ 81.641065][ T5181] dump_backtrace+0x0/0x43c [ 81.642461][ T5181] show_stack+0x2c/0x3c [ 81.643743][ T5181] __dump_stack+0x30/0x40 [ 81.644977][ T5181] dump_stack_lvl+0xf8/0x160 [ 81.646372][ T5181] dump_stack+0x1c/0x5c [ 81.647583][ T5181] should_fail+0x3c0/0x51c [ 81.648838][ T5181] __should_failslab+0xbc/0x10c [ 81.650308][ T5181] should_failslab+0x10/0x28 [ 81.651677][ T5181] slab_pre_alloc_hook+0x64/0xec [ 81.653026][ T5181] __kmalloc_node+0xb8/0x520 [ 81.654323][ T5181] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.655896][ T5181] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.657446][ T5181] nbd_start_device+0x14c/0xb40 [ 81.658857][ T5181] nbd_ioctl+0x514/0xc50 [ 81.660080][ T5181] blkdev_ioctl+0x5f8/0xbb8 [ 81.661384][ T5181] block_ioctl+0xa4/0x118 [ 81.662714][ T5181] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.664267][ T5181] invoke_syscall+0x98/0x2b8 [ 81.665620][ T5181] el0_svc_common+0x138/0x258 [ 81.667011][ T5181] do_el0_svc+0x58/0x14c [ 81.668216][ T5181] el0_svc+0x78/0x1e0 [ 81.669483][ T5181] el0t_64_sync_handler+0xcc/0xe4 [ 81.670840][ T5181] el0t_64_sync+0x1a0/0x1a4 [ 81.673916][ T5187] CPU: 1 PID: 5187 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 81.676797][ T5187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.679519][ T5187] Call trace: [ 81.680397][ T5187] dump_backtrace+0x0/0x43c [ 81.681692][ T5187] show_stack+0x2c/0x3c [ 81.682994][ T5187] __dump_stack+0x30/0x40 [ 81.684220][ T5187] dump_stack_lvl+0xf8/0x160 [ 81.685563][ T5187] dump_stack+0x1c/0x5c [ 81.686785][ T5187] should_fail+0x3c0/0x51c [ 81.688094][ T5187] __should_failslab+0xbc/0x10c [ 81.689496][ T5187] should_failslab+0x10/0x28 [ 81.690841][ T5187] slab_pre_alloc_hook+0x64/0xec [ 81.692275][ T5187] __kmalloc_node+0xb8/0x520 [ 81.693597][ T5187] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 81.695124][ T5187] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 81.696695][ T5187] nbd_start_device+0x14c/0xb40 [ 81.698030][ T5187] nbd_ioctl+0x514/0xc50 [ 81.699158][ T5187] blkdev_ioctl+0x5f8/0xbb8 [ 81.700491][ T5187] block_ioctl+0xa4/0x118 [ 81.701697][ T5187] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.703093][ T5187] invoke_syscall+0x98/0x2b8 [ 81.704421][ T5187] el0_svc_common+0x138/0x258 [ 81.705829][ T5187] do_el0_svc+0x58/0x14c [ 81.707004][ T5187] el0_svc+0x78/0x1e0 [ 81.708101][ T5187] el0t_64_sync_handler+0xcc/0xe4 [ 81.709511][ T5187] el0t_64_sync+0x1a0/0x1a4 [ 81.727667][ T5187] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.732119][ T5186] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.755516][ T5201] block nbd0: Device being setup by another task [ 81.757607][ T5195] block nbd0: shutting down sockets [ 81.766508][ T5181] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 81.766789][ T5204] block nbd1: Device being setup by another task [ 81.770608][ T5196] block nbd1: shutting down sockets [ 81.773280][ T5195] FAULT_INJECTION: forcing a failure. [ 81.773280][ T5195] name failslab, interval 1, probability 0, space 0, times 0 [ 81.780441][ T5195] CPU: 0 PID: 5195 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 81.783313][ T5195] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.786183][ T5195] Call trace: [ 81.787080][ T5195] dump_backtrace+0x0/0x43c [ 81.788460][ T5195] show_stack+0x2c/0x3c [ 81.789657][ T5195] __dump_stack+0x30/0x40 [ 81.790855][ T5195] dump_stack_lvl+0xf8/0x160 [ 81.792192][ T5195] dump_stack+0x1c/0x5c [ 81.793437][ T5195] should_fail+0x3c0/0x51c [ 81.794831][ T5195] __should_failslab+0xbc/0x10c [ 81.796277][ T5195] should_failslab+0x10/0x28 [ 81.797646][ T5195] slab_pre_alloc_hook+0x64/0xec [ 81.798983][ T5195] kmem_cache_alloc+0x94/0x3e4 [ 81.800379][ T5195] new_inode_pseudo+0x10c/0x1fc [ 81.801813][ T5195] new_inode+0x38/0x174 [ 81.803054][ T5195] debugfs_create_dir+0xec/0x3f4 [ 81.804525][ T5195] nbd_start_device+0x3c8/0xb40 [ 81.805965][ T5195] nbd_ioctl+0x514/0xc50 [ 81.807175][ T5195] blkdev_ioctl+0x5f8/0xbb8 [ 81.808466][ T5195] block_ioctl+0xa4/0x118 [ 81.809650][ T5195] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.811119][ T5195] invoke_syscall+0x98/0x2b8 [ 81.812451][ T5195] el0_svc_common+0x138/0x258 [ 81.813822][ T5195] do_el0_svc+0x58/0x14c [ 81.814969][ T5195] el0_svc+0x78/0x1e0 [ 81.816130][ T5195] el0t_64_sync_handler+0xcc/0xe4 [ 81.817602][ T5195] el0t_64_sync+0x1a0/0x1a4 [ 81.852656][ T5195] debugfs: out of free dentries, can not create directory 'nbd0' [ 81.862556][ T5195] block nbd0: Failed to create debugfs dir for 'nbd0' [ 81.882308][ T5200] FAULT_INJECTION: forcing a failure. [ 81.882308][ T5200] name failslab, interval 1, probability 0, space 0, times 0 [ 81.900198][ T5200] CPU: 0 PID: 5200 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 81.903127][ T5200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.906103][ T5200] Call trace: [ 81.907055][ T5200] dump_backtrace+0x0/0x43c [ 81.908308][ T5200] show_stack+0x2c/0x3c [ 81.909475][ T5200] __dump_stack+0x30/0x40 [ 81.910824][ T5200] dump_stack_lvl+0xf8/0x160 [ 81.912172][ T5200] dump_stack+0x1c/0x5c [ 81.913412][ T5200] should_fail+0x3c0/0x51c [ 81.914658][ T5200] __should_failslab+0xbc/0x10c [ 81.916060][ T5200] should_failslab+0x10/0x28 [ 81.917384][ T5200] slab_pre_alloc_hook+0x64/0xec [ 81.918772][ T5200] __kmalloc_track_caller+0x74/0x370 [ 81.920267][ T5200] kstrdup+0xe4/0x15c [ 81.921452][ T5200] kstrdup_const+0x54/0x6c [ 81.922680][ T5200] __kernfs_new_node+0xa8/0x5d8 [ 81.924098][ T5200] kernfs_new_node+0x11c/0x240 [ 81.925523][ T5200] kernfs_create_dir_ns+0x58/0x12c [ 81.927018][ T5200] sysfs_create_dir_ns+0x114/0x24c [ 81.928552][ T5200] kobject_add_internal+0x590/0xc54 [ 81.930030][ T5200] kobject_add+0x134/0x1f8 [ 81.931353][ T5200] blk_mq_register_hctx+0xc0/0x35c [ 81.932830][ T5200] blk_mq_sysfs_register+0xb8/0x18c [ 81.934317][ T5200] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 81.936005][ T5200] nbd_start_device+0x14c/0xb40 [ 81.937461][ T5200] nbd_ioctl+0x514/0xc50 [ 81.938696][ T5200] blkdev_ioctl+0x5f8/0xbb8 [ 81.939953][ T5200] block_ioctl+0xa4/0x118 [ 81.941354][ T5200] __arm64_sys_ioctl+0x14c/0x1c8 [ 81.942793][ T5200] invoke_syscall+0x98/0x2b8 [ 81.944125][ T5200] el0_svc_common+0x138/0x258 [ 81.945488][ T5200] do_el0_svc+0x58/0x14c [ 81.946750][ T5200] el0_svc+0x78/0x1e0 [ 81.947996][ T5200] el0t_64_sync_handler+0xcc/0xe4 [ 81.949509][ T5200] el0t_64_sync+0x1a0/0x1a4 [ 82.012270][ T5208] block nbd2: shutting down sockets [ 82.035431][ T5200] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 82.045943][ T5216] block nbd3: shutting down sockets [ 82.056099][ T5219] block nbd0: shutting down sockets [ 82.060109][ T5208] FAULT_INJECTION: forcing a failure. [ 82.060109][ T5208] name failslab, interval 1, probability 0, space 0, times 0 [ 82.066212][ T5220] block nbd4: shutting down sockets [ 82.076687][ T5208] CPU: 0 PID: 5208 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 82.079650][ T5208] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.082590][ T5208] Call trace: [ 82.083599][ T5208] dump_backtrace+0x0/0x43c [ 82.084852][ T5208] show_stack+0x2c/0x3c [ 82.086121][ T5208] __dump_stack+0x30/0x40 [ 82.087349][ T5208] dump_stack_lvl+0xf8/0x160 [ 82.088656][ T5208] dump_stack+0x1c/0x5c [ 82.089837][ T5208] should_fail+0x3c0/0x51c [ 82.091094][ T5208] __should_failslab+0xbc/0x10c [ 82.092505][ T5208] should_failslab+0x10/0x28 [ 82.093939][ T5208] slab_pre_alloc_hook+0x64/0xec [ 82.095389][ T5208] __kmalloc_node+0xb8/0x520 [ 82.096742][ T5208] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.098301][ T5208] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.100044][ T5208] nbd_start_device+0x14c/0xb40 [ 82.101415][ T5208] nbd_ioctl+0x514/0xc50 [ 82.102594][ T5208] blkdev_ioctl+0x5f8/0xbb8 [ 82.103868][ T5208] block_ioctl+0xa4/0x118 [ 82.105153][ T5208] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.106639][ T5208] invoke_syscall+0x98/0x2b8 [ 82.108018][ T5208] el0_svc_common+0x138/0x258 [ 82.109330][ T5208] do_el0_svc+0x58/0x14c [ 82.110533][ T5208] el0_svc+0x78/0x1e0 [ 82.111717][ T5208] el0t_64_sync_handler+0xcc/0xe4 [ 82.113178][ T5208] el0t_64_sync+0x1a0/0x1a4 [ 82.123402][ T5208] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.135707][ T5216] FAULT_INJECTION: forcing a failure. [ 82.135707][ T5216] name failslab, interval 1, probability 0, space 0, times 0 [ 82.143764][ T5220] FAULT_INJECTION: forcing a failure. [ 82.143764][ T5220] name failslab, interval 1, probability 0, space 0, times 0 [ 82.150938][ T5216] CPU: 0 PID: 5216 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 82.153910][ T5216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.156965][ T5216] Call trace: [ 82.157925][ T5216] dump_backtrace+0x0/0x43c [ 82.159195][ T5216] show_stack+0x2c/0x3c [ 82.160434][ T5216] __dump_stack+0x30/0x40 [ 82.160681][ T5219] FAULT_INJECTION: forcing a failure. [ 82.160681][ T5219] name failslab, interval 1, probability 0, space 0, times 0 [ 82.161674][ T5216] dump_stack_lvl+0xf8/0x160 [ 82.166649][ T5216] dump_stack+0x1c/0x5c [ 82.167893][ T5216] should_fail+0x3c0/0x51c [ 82.169175][ T5216] __should_failslab+0xbc/0x10c [ 82.170628][ T5216] should_failslab+0x10/0x28 [ 82.171961][ T5216] slab_pre_alloc_hook+0x64/0xec [ 82.173359][ T5216] __kmalloc_node+0xb8/0x520 [ 82.174732][ T5216] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.176328][ T5216] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.178016][ T5216] nbd_start_device+0x14c/0xb40 [ 82.179420][ T5216] nbd_ioctl+0x514/0xc50 [ 82.180672][ T5216] blkdev_ioctl+0x5f8/0xbb8 [ 82.181953][ T5216] block_ioctl+0xa4/0x118 [ 82.183191][ T5216] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.184708][ T5216] invoke_syscall+0x98/0x2b8 [ 82.186036][ T5216] el0_svc_common+0x138/0x258 [ 82.187404][ T5216] do_el0_svc+0x58/0x14c [ 82.188635][ T5216] el0_svc+0x78/0x1e0 [ 82.189841][ T5216] el0t_64_sync_handler+0xcc/0xe4 [ 82.191312][ T5216] el0t_64_sync+0x1a0/0x1a4 [ 82.197185][ T5219] CPU: 1 PID: 5219 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 82.200196][ T5219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.203073][ T5219] Call trace: [ 82.204037][ T5219] dump_backtrace+0x0/0x43c [ 82.205264][ T5219] show_stack+0x2c/0x3c [ 82.206512][ T5219] __dump_stack+0x30/0x40 [ 82.207844][ T5219] dump_stack_lvl+0xf8/0x160 [ 82.209120][ T5219] dump_stack+0x1c/0x5c [ 82.210293][ T5219] should_fail+0x3c0/0x51c [ 82.211603][ T5219] __should_failslab+0xbc/0x10c [ 82.213008][ T5219] should_failslab+0x10/0x28 [ 82.214319][ T5219] slab_pre_alloc_hook+0x64/0xec [ 82.215748][ T5219] __kmalloc_node+0xb8/0x520 [ 82.217062][ T5219] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.218691][ T5219] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.220296][ T5219] nbd_start_device+0x14c/0xb40 [ 82.221732][ T5219] nbd_ioctl+0x514/0xc50 [ 82.223015][ T5219] blkdev_ioctl+0x5f8/0xbb8 [ 82.224271][ T5219] block_ioctl+0xa4/0x118 [ 82.225492][ T5219] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.226822][ T5219] invoke_syscall+0x98/0x2b8 [ 82.228118][ T5219] el0_svc_common+0x138/0x258 [ 82.229474][ T5219] do_el0_svc+0x58/0x14c [ 82.230636][ T5219] el0_svc+0x78/0x1e0 [ 82.231845][ T5219] el0t_64_sync_handler+0xcc/0xe4 [ 82.233318][ T5219] el0t_64_sync+0x1a0/0x1a4 [ 82.238964][ T5224] block nbd1: shutting down sockets [ 82.241463][ T5220] CPU: 0 PID: 5220 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 82.244363][ T5220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.247381][ T5220] Call trace: [ 82.248316][ T5220] dump_backtrace+0x0/0x43c [ 82.249650][ T5220] show_stack+0x2c/0x3c [ 82.250869][ T5220] __dump_stack+0x30/0x40 [ 82.252102][ T5220] dump_stack_lvl+0xf8/0x160 [ 82.253469][ T5220] dump_stack+0x1c/0x5c [ 82.254625][ T5220] should_fail+0x3c0/0x51c [ 82.255584][ T5219] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.255961][ T5220] __should_failslab+0xbc/0x10c [ 82.255977][ T5220] should_failslab+0x10/0x28 [ 82.255988][ T5220] slab_pre_alloc_hook+0x64/0xec [ 82.261953][ T5216] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.262022][ T5220] __kmalloc_node+0xb8/0x520 [ 82.265293][ T5220] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.266892][ T5220] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.268676][ T5220] nbd_start_device+0x14c/0xb40 [ 82.270089][ T5220] nbd_ioctl+0x514/0xc50 [ 82.271343][ T5220] blkdev_ioctl+0x5f8/0xbb8 [ 82.272675][ T5220] block_ioctl+0xa4/0x118 [ 82.273964][ T5220] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.275418][ T5220] invoke_syscall+0x98/0x2b8 [ 82.276780][ T5220] el0_svc_common+0x138/0x258 [ 82.278178][ T5220] do_el0_svc+0x58/0x14c [ 82.279436][ T5220] el0_svc+0x78/0x1e0 [ 82.280619][ T5220] el0t_64_sync_handler+0xcc/0xe4 [ 82.282008][ T5220] el0t_64_sync+0x1a0/0x1a4 [ 82.284671][ T5220] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.320656][ T5224] ------------[ cut here ]------------ [ 82.354765][ T5224] kernfs: can not remove 'nr_tags', no directory [ 82.357702][ T5224] WARNING: CPU: 0 PID: 5224 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 82.360541][ T5224] Modules linked in: [ 82.361679][ T5224] CPU: 0 PID: 5224 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 82.364507][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.367484][ T5224] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 82.369821][ T5224] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.371450][ T5224] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.373161][ T5224] sp : ffff80001ff77790 [ 82.374382][ T5224] x29: ffff80001ff77790 x28: ffff0000cc301000 x27: 0000000000000000 [ 82.376663][ T5224] x26: 0000000000000002 x25: ffff80001491ad28 x24: 1ffff000022f87f8 [ 82.379032][ T5224] x23: dfff800000000000 x22: ffff80001491ad60 x21: 0000000000000000 [ 82.381399][ T5224] x20: 0000000000000000 x19: ffff8000117c4020 x18: 1fffe00034216796 [ 82.383740][ T5224] x17: 1fffe00034216796 x16: ffff8000111d162c x15: ffff80001421eda0 [ 82.386140][ T5224] x14: ffff0001a10b3cc0 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 82.388542][ T5224] x11: 0000000000000000 x10: 0000000000000000 x9 : 58b9355ffbcecf00 [ 82.390847][ T5224] x8 : 58b9355ffbcecf00 x7 : 0000000000000000 x6 : 0000000000000000 [ 82.393182][ T5224] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a734e84 [ 82.395448][ T5224] x2 : ffff0001a10b3d50 x1 : 0000000100000000 x0 : 000000000000002e [ 82.397783][ T5224] Call trace: [ 82.398748][ T5224] kernfs_remove_by_name_ns+0xcc/0x158 [ 82.400387][ T5224] sysfs_remove_group+0xf8/0x288 [ 82.401825][ T5224] sysfs_remove_groups+0x5c/0xb4 [ 82.403211][ T5224] __kobject_del+0x90/0x2d4 [ 82.404503][ T5224] kobject_del+0x48/0x68 [ 82.405760][ T5224] blk_mq_sysfs_unregister+0x198/0x268 [ 82.407395][ T5224] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 82.409073][ T5224] nbd_start_device+0x14c/0xb40 [ 82.410415][ T5224] nbd_ioctl+0x514/0xc50 [ 82.411712][ T5224] blkdev_ioctl+0x5f8/0xbb8 [ 82.413065][ T5224] block_ioctl+0xa4/0x118 [ 82.414240][ T5224] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.415811][ T5224] invoke_syscall+0x98/0x2b8 [ 82.417111][ T5224] el0_svc_common+0x138/0x258 [ 82.418442][ T5224] do_el0_svc+0x58/0x14c [ 82.419693][ T5224] el0_svc+0x78/0x1e0 [ 82.420814][ T5224] el0t_64_sync_handler+0xcc/0xe4 [ 82.422270][ T5224] el0t_64_sync+0x1a0/0x1a4 [ 82.423629][ T5224] irq event stamp: 2274 [ 82.424849][ T5224] hardirqs last enabled at (2273): [] finish_lock_switch+0xb0/0x1c4 [ 82.427652][ T5224] hardirqs last disabled at (2274): [] el1_dbg+0x24/0x80 [ 82.430024][ T5224] softirqs last enabled at (2268): [] handle_softirqs+0xa4c/0xbf0 [ 82.432727][ T5224] softirqs last disabled at (2081): [] __irq_exit_rcu+0x240/0x440 [ 82.435494][ T5224] ---[ end trace 9a7576a492d76219 ]--- [ 82.529103][ T5239] block nbd4: shutting down sockets [ 82.529416][ T5243] block nbd0: shutting down sockets [ 82.532009][ T5238] block nbd2: shutting down sockets [ 82.568719][ T5224] ------------[ cut here ]------------ [ 82.570527][ T5224] kernfs: can not remove 'nr_reserved_tags', no directory [ 82.573031][ T5224] WARNING: CPU: 1 PID: 5224 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 82.575806][ T5224] Modules linked in: [ 82.576915][ T5224] CPU: 1 PID: 5224 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 82.579737][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.582744][ T5224] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 82.585022][ T5224] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.586740][ T5224] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.588364][ T5224] sp : ffff80001ff77790 [ 82.589543][ T5224] x29: ffff80001ff77790 x28: ffff0000cc301000 x27: 0000000000000000 [ 82.591862][ T5224] x26: 0000000000000002 x25: ffff80001491ad30 x24: 1ffff000022f87f8 [ 82.594231][ T5224] x23: dfff800000000000 x22: ffff80001491adc0 x21: 0000000000000000 [ 82.596607][ T5224] x20: 0000000000000000 x19: ffff8000117c4060 x18: 0000000000000002 [ 82.598902][ T5224] x17: 0000000040000000 x16: ffff8000111d162c x15: 0000000000000002 [ 82.601165][ T5224] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 82.603548][ T5224] x11: 0000000000000000 x10: 0000000000000000 x9 : 58b9355ffbcecf00 [ 82.605910][ T5224] x8 : 58b9355ffbcecf00 x7 : 0000000000000000 x6 : 0000000000000000 [ 82.608089][ T5224] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff8000085051a4 [ 82.610431][ T5224] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000037 [ 82.612758][ T5224] Call trace: [ 82.613716][ T5224] kernfs_remove_by_name_ns+0xcc/0x158 [ 82.615283][ T5224] sysfs_remove_group+0xf8/0x288 [ 82.616767][ T5224] sysfs_remove_groups+0x5c/0xb4 [ 82.618181][ T5224] __kobject_del+0x90/0x2d4 [ 82.619424][ T5224] kobject_del+0x48/0x68 [ 82.620650][ T5224] blk_mq_sysfs_unregister+0x198/0x268 [ 82.622249][ T5224] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 82.623973][ T5224] nbd_start_device+0x14c/0xb40 [ 82.625302][ T5224] nbd_ioctl+0x514/0xc50 [ 82.626502][ T5224] blkdev_ioctl+0x5f8/0xbb8 [ 82.627807][ T5224] block_ioctl+0xa4/0x118 [ 82.629129][ T5224] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.630520][ T5224] invoke_syscall+0x98/0x2b8 [ 82.631812][ T5224] el0_svc_common+0x138/0x258 [ 82.633169][ T5224] do_el0_svc+0x58/0x14c [ 82.634358][ T5224] el0_svc+0x78/0x1e0 [ 82.635537][ T5224] el0t_64_sync_handler+0xcc/0xe4 [ 82.636891][ T5224] el0t_64_sync+0x1a0/0x1a4 [ 82.638185][ T5224] irq event stamp: 3266 [ 82.639359][ T5224] hardirqs last enabled at (3265): [] finish_lock_switch+0xb0/0x1c4 [ 82.642031][ T5224] hardirqs last disabled at (3266): [] el1_dbg+0x24/0x80 [ 82.644471][ T5224] softirqs last enabled at (3236): [] handle_softirqs+0xa4c/0xbf0 [ 82.647107][ T5224] softirqs last disabled at (2279): [] __irq_exit_rcu+0x240/0x440 [ 82.649760][ T5224] ---[ end trace 9a7576a492d7621a ]--- [ 82.660465][ T5239] FAULT_INJECTION: forcing a failure. [ 82.660465][ T5239] name failslab, interval 1, probability 0, space 0, times 0 [ 82.669918][ T5238] FAULT_INJECTION: forcing a failure. [ 82.669918][ T5238] name failslab, interval 1, probability 0, space 0, times 0 [ 82.679069][ T5239] CPU: 1 PID: 5239 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 82.679294][ T5236] FAULT_INJECTION: forcing a failure. [ 82.679294][ T5236] name failslab, interval 1, probability 0, space 0, times 0 [ 82.681917][ T5239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.685895][ T5247] block nbd3: shutting down sockets [ 82.688597][ T5239] Call trace: [ 82.688605][ T5239] dump_backtrace+0x0/0x43c [ 82.688622][ T5239] show_stack+0x2c/0x3c [ 82.693416][ T5239] __dump_stack+0x30/0x40 [ 82.694654][ T5239] dump_stack_lvl+0xf8/0x160 [ 82.696022][ T5239] dump_stack+0x1c/0x5c [ 82.697169][ T5239] should_fail+0x3c0/0x51c [ 82.698451][ T5239] __should_failslab+0xbc/0x10c [ 82.699847][ T5239] should_failslab+0x10/0x28 [ 82.701182][ T5239] slab_pre_alloc_hook+0x64/0xec [ 82.702693][ T5239] __kmalloc_node+0xb8/0x520 [ 82.704065][ T5239] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.705621][ T5239] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.707255][ T5239] nbd_start_device+0x14c/0xb40 [ 82.708642][ T5239] nbd_ioctl+0x514/0xc50 [ 82.709848][ T5239] blkdev_ioctl+0x5f8/0xbb8 [ 82.711235][ T5239] block_ioctl+0xa4/0x118 [ 82.712455][ T5239] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.713958][ T5239] invoke_syscall+0x98/0x2b8 [ 82.715280][ T5239] el0_svc_common+0x138/0x258 [ 82.716640][ T5239] do_el0_svc+0x58/0x14c [ 82.717840][ T5239] el0_svc+0x78/0x1e0 [ 82.719046][ T5239] el0t_64_sync_handler+0xcc/0xe4 [ 82.720514][ T5239] el0t_64_sync+0x1a0/0x1a4 [ 82.723593][ T5236] CPU: 0 PID: 5236 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 82.726509][ T5236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.729495][ T5236] Call trace: [ 82.730373][ T5236] dump_backtrace+0x0/0x43c [ 82.731608][ T5236] show_stack+0x2c/0x3c [ 82.732818][ T5236] __dump_stack+0x30/0x40 [ 82.733982][ T5236] dump_stack_lvl+0xf8/0x160 [ 82.735307][ T5236] dump_stack+0x1c/0x5c [ 82.736627][ T5236] should_fail+0x3c0/0x51c [ 82.737904][ T5236] __should_failslab+0xbc/0x10c [ 82.739211][ T5236] should_failslab+0x10/0x28 [ 82.740488][ T5236] slab_pre_alloc_hook+0x64/0xec [ 82.741904][ T5236] __kmalloc_node+0xb8/0x520 [ 82.743194][ T5236] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.744706][ T5236] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.746383][ T5236] nbd_start_device+0x14c/0xb40 [ 82.747768][ T5236] nbd_ioctl+0x514/0xc50 [ 82.748941][ T5236] blkdev_ioctl+0x5f8/0xbb8 [ 82.750267][ T5236] block_ioctl+0xa4/0x118 [ 82.751511][ T5236] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.753019][ T5236] invoke_syscall+0x98/0x2b8 [ 82.754299][ T5236] el0_svc_common+0x138/0x258 [ 82.755612][ T5236] do_el0_svc+0x58/0x14c [ 82.756912][ T5236] el0_svc+0x78/0x1e0 [ 82.758043][ T5236] el0t_64_sync_handler+0xcc/0xe4 [ 82.759552][ T5236] el0t_64_sync+0x1a0/0x1a4 [ 82.760950][ T5238] CPU: 1 PID: 5238 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 82.763520][ T5224] ------------[ cut here ]------------ [ 82.763715][ T5238] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.765444][ T5224] kernfs: can not remove 'cpu_list', no directory [ 82.767969][ T5238] Call trace: [ 82.767977][ T5238] dump_backtrace+0x0/0x43c [ 82.772054][ T5238] show_stack+0x2c/0x3c [ 82.772755][ T5224] WARNING: CPU: 0 PID: 5224 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 82.773264][ T5238] __dump_stack+0x30/0x40 [ 82.776114][ T5224] Modules linked in: [ 82.777367][ T5238] dump_stack_lvl+0xf8/0x160 [ 82.778460][ T5224] CPU: 0 PID: 5224 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 82.779742][ T5238] dump_stack+0x1c/0x5c [ 82.782514][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.783668][ T5238] should_fail+0x3c0/0x51c [ 82.786474][ T5224] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 82.787690][ T5238] __should_failslab+0xbc/0x10c [ 82.790044][ T5224] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.791459][ T5238] should_failslab+0x10/0x28 [ 82.792985][ T5224] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 82.794352][ T5238] slab_pre_alloc_hook+0x64/0xec [ 82.796064][ T5224] sp : ffff80001ff77790 [ 82.797498][ T5238] __kmalloc_node+0xb8/0x520 [ 82.798675][ T5224] x29: ffff80001ff77790 x28: ffff0000cc301000 x27: 0000000000000000 [ 82.799967][ T5238] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 82.802351][ T5224] [ 82.803956][ T5238] nbd_start_device+0x14c/0xb40 [ 82.804613][ T5224] x26: 0000000000000002 x25: ffff80001491ad38 [ 82.805977][ T5238] nbd_ioctl+0x514/0xc50 [ 82.805987][ T5224] x24: 1ffff000022f87f8 [ 82.808871][ T5238] blkdev_ioctl+0x5f8/0xbb8 [ 82.810031][ T5224] x23: dfff800000000000 x22: ffff80001491ae20 x21: 0000000000000000 [ 82.811306][ T5238] block_ioctl+0xa4/0x118 [ 82.811325][ T5238] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.813551][ T5224] [ 82.814862][ T5238] invoke_syscall+0x98/0x2b8 [ 82.816200][ T5224] x20: 0000000000000000 [ 82.816827][ T5238] el0_svc_common+0x138/0x258 [ 82.818105][ T5224] x19: ffff8000117c40a0 [ 82.819236][ T5238] do_el0_svc+0x58/0x14c [ 82.820589][ T5224] x18: 0000000000000002 [ 82.821788][ T5238] el0_svc+0x78/0x1e0 [ 82.822942][ T5224] [ 82.824130][ T5238] el0t_64_sync_handler+0xcc/0xe4 [ 82.825179][ T5224] x17: 0000000040000000 [ 82.825788][ T5238] el0t_64_sync+0x1a0/0x1a4 [ 82.827188][ T5224] x16: ffff8000082c0bc8 x15: 0000000000000002 [ 82.831383][ T5224] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 82.833601][ T5224] x11: 0000000000000000 x10: 0000000000000000 x9 : 58b9355ffbcecf00 [ 82.835756][ T5224] x8 : 58b9355ffbcecf00 x7 : 0000000000000000 x6 : 0000000000000000 [ 82.837997][ T5224] x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010 [ 82.840272][ T5224] x2 : 0000000000000006 x1 : 0000000100000000 x0 : 000000000000002f [ 82.840663][ T5239] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.842518][ T5224] Call trace: [ 82.842526][ T5224] kernfs_remove_by_name_ns+0xcc/0x158 [ 82.842542][ T5224] sysfs_remove_group+0xf8/0x288 [ 82.842553][ T5224] sysfs_remove_groups+0x5c/0xb4 [ 82.842561][ T5224] __kobject_del+0x90/0x2d4 [ 82.850896][ T5224] kobject_del+0x48/0x68 [ 82.852157][ T5224] blk_mq_sysfs_unregister+0x198/0x268 [ 82.853704][ T5224] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 82.855344][ T5224] nbd_start_device+0x14c/0xb40 [ 82.856760][ T5224] nbd_ioctl+0x514/0xc50 [ 82.858000][ T5224] blkdev_ioctl+0x5f8/0xbb8 [ 82.859233][ T5224] block_ioctl+0xa4/0x118 [ 82.860462][ T5224] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.861865][ T5224] invoke_syscall+0x98/0x2b8 [ 82.863131][ T5224] el0_svc_common+0x138/0x258 [ 82.864396][ T5224] do_el0_svc+0x58/0x14c [ 82.865613][ T5224] el0_svc+0x78/0x1e0 [ 82.866784][ T5224] el0t_64_sync_handler+0xcc/0xe4 [ 82.868235][ T5224] el0t_64_sync+0x1a0/0x1a4 [ 82.869516][ T5224] irq event stamp: 3352 [ 82.870667][ T5224] hardirqs last enabled at (3351): [] finish_lock_switch+0xb0/0x1c4 [ 82.873328][ T5224] hardirqs last disabled at (3352): [] el1_dbg+0x24/0x80 [ 82.875813][ T5224] softirqs last enabled at (3322): [] handle_softirqs+0xa4c/0xbf0 [ 82.878618][ T5224] softirqs last disabled at (3269): [] __irq_exit_rcu+0x240/0x440 [ 82.881289][ T5224] ---[ end trace 9a7576a492d7621b ]--- [ 82.893915][ T5236] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 82.894269][ T5250] FAULT_INJECTION: forcing a failure. [ 82.894269][ T5250] name failslab, interval 1, probability 0, space 0, times 0 [ 82.899771][ T5250] CPU: 0 PID: 5250 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 82.902593][ T5250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.905319][ T5250] Call trace: [ 82.906203][ T5250] dump_backtrace+0x0/0x43c [ 82.907472][ T5250] show_stack+0x2c/0x3c [ 82.908597][ T5250] __dump_stack+0x30/0x40 [ 82.909787][ T5250] dump_stack_lvl+0xf8/0x160 [ 82.911131][ T5250] dump_stack+0x1c/0x5c [ 82.912314][ T5250] should_fail+0x3c0/0x51c [ 82.913602][ T5250] __should_failslab+0xbc/0x10c [ 82.914964][ T5250] should_failslab+0x10/0x28 [ 82.916282][ T5250] slab_pre_alloc_hook+0x64/0xec [ 82.917687][ T5250] __kmalloc_node+0xb8/0x520 [ 82.919048][ T5250] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 82.920619][ T5250] nbd_start_device+0x14c/0xb40 [ 82.921750][ T5224] FAULT_INJECTION: forcing a failure. [ 82.921750][ T5224] name failslab, interval 1, probability 0, space 0, times 0 [ 82.921939][ T5250] nbd_ioctl+0x514/0xc50 [ 82.926725][ T5250] blkdev_ioctl+0x5f8/0xbb8 [ 82.927994][ T5250] block_ioctl+0xa4/0x118 [ 82.929178][ T5250] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.930541][ T5250] invoke_syscall+0x98/0x2b8 [ 82.931799][ T5250] el0_svc_common+0x138/0x258 [ 82.933165][ T5250] do_el0_svc+0x58/0x14c [ 82.934279][ T5250] el0_svc+0x78/0x1e0 [ 82.935481][ T5250] el0t_64_sync_handler+0xcc/0xe4 [ 82.936919][ T5250] el0t_64_sync+0x1a0/0x1a4 [ 82.946633][ T5224] CPU: 1 PID: 5224 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 82.949573][ T5224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.952513][ T5224] Call trace: [ 82.953437][ T5224] dump_backtrace+0x0/0x43c [ 82.954678][ T5224] show_stack+0x2c/0x3c [ 82.955849][ T5224] __dump_stack+0x30/0x40 [ 82.957105][ T5224] dump_stack_lvl+0xf8/0x160 [ 82.958416][ T5224] dump_stack+0x1c/0x5c [ 82.959619][ T5224] should_fail+0x3c0/0x51c [ 82.960823][ T5224] __should_failslab+0xbc/0x10c [ 82.962119][ T5224] should_failslab+0x10/0x28 [ 82.963439][ T5224] slab_pre_alloc_hook+0x64/0xec [ 82.964961][ T5224] __kmalloc_node+0xb8/0x520 [ 82.966355][ T5224] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 82.967894][ T5224] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 82.969461][ T5224] nbd_start_device+0x14c/0xb40 [ 82.970774][ T5224] nbd_ioctl+0x514/0xc50 [ 82.971979][ T5224] blkdev_ioctl+0x5f8/0xbb8 [ 82.973317][ T5224] block_ioctl+0xa4/0x118 [ 82.974534][ T5224] __arm64_sys_ioctl+0x14c/0x1c8 [ 82.975981][ T5224] invoke_syscall+0x98/0x2b8 [ 82.977342][ T5224] el0_svc_common+0x138/0x258 [ 82.978696][ T5224] do_el0_svc+0x58/0x14c [ 82.979865][ T5224] el0_svc+0x78/0x1e0 [ 82.981031][ T5224] el0t_64_sync_handler+0xcc/0xe4 [ 82.982454][ T5224] el0t_64_sync+0x1a0/0x1a4 [ 83.106557][ T5256] block nbd0: shutting down sockets [ 83.125677][ T5260] block nbd4: shutting down sockets [ 83.129330][ T5224] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.146469][ T5261] block nbd2: shutting down sockets [ 83.150298][ T5262] block nbd3: shutting down sockets [ 83.166192][ T5256] FAULT_INJECTION: forcing a failure. [ 83.166192][ T5256] name failslab, interval 1, probability 0, space 0, times 0 [ 83.179505][ T5260] FAULT_INJECTION: forcing a failure. [ 83.179505][ T5260] name failslab, interval 1, probability 0, space 0, times 0 [ 83.199393][ T5262] FAULT_INJECTION: forcing a failure. [ 83.199393][ T5262] name failslab, interval 1, probability 0, space 0, times 0 [ 83.209669][ T5256] CPU: 1 PID: 5256 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 83.210628][ T5261] FAULT_INJECTION: forcing a failure. [ 83.210628][ T5261] name failslab, interval 1, probability 0, space 0, times 0 [ 83.212590][ T5256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.219004][ T5256] Call trace: [ 83.219964][ T5256] dump_backtrace+0x0/0x43c [ 83.221245][ T5256] show_stack+0x2c/0x3c [ 83.222414][ T5256] __dump_stack+0x30/0x40 [ 83.223639][ T5256] dump_stack_lvl+0xf8/0x160 [ 83.224907][ T5256] dump_stack+0x1c/0x5c [ 83.226100][ T5256] should_fail+0x3c0/0x51c [ 83.227246][ T5256] __should_failslab+0xbc/0x10c [ 83.228632][ T5256] should_failslab+0x10/0x28 [ 83.229973][ T5256] slab_pre_alloc_hook+0x64/0xec [ 83.231453][ T5256] __kmalloc_node+0xb8/0x520 [ 83.232782][ T5256] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.234265][ T5256] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.235888][ T5256] nbd_start_device+0x14c/0xb40 [ 83.237290][ T5256] nbd_ioctl+0x514/0xc50 [ 83.238537][ T5256] blkdev_ioctl+0x5f8/0xbb8 [ 83.239811][ T5256] block_ioctl+0xa4/0x118 [ 83.241001][ T5256] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.242453][ T5256] invoke_syscall+0x98/0x2b8 [ 83.243733][ T5256] el0_svc_common+0x138/0x258 [ 83.245016][ T5256] do_el0_svc+0x58/0x14c [ 83.246178][ T5256] el0_svc+0x78/0x1e0 [ 83.247327][ T5256] el0t_64_sync_handler+0xcc/0xe4 [ 83.248760][ T5256] el0t_64_sync+0x1a0/0x1a4 [ 83.250135][ T5260] CPU: 0 PID: 5260 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 83.252959][ T5260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.255897][ T5260] Call trace: [ 83.256819][ T5260] dump_backtrace+0x0/0x43c [ 83.258053][ T5260] show_stack+0x2c/0x3c [ 83.259209][ T5260] __dump_stack+0x30/0x40 [ 83.260405][ T5260] dump_stack_lvl+0xf8/0x160 [ 83.261698][ T5260] dump_stack+0x1c/0x5c [ 83.262846][ T5260] should_fail+0x3c0/0x51c [ 83.264066][ T5260] __should_failslab+0xbc/0x10c [ 83.265412][ T5260] should_failslab+0x10/0x28 [ 83.266692][ T5260] slab_pre_alloc_hook+0x64/0xec [ 83.268098][ T5260] __kmalloc_node+0xb8/0x520 [ 83.269539][ T5260] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.271054][ T5260] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.272683][ T5260] nbd_start_device+0x14c/0xb40 [ 83.274048][ T5260] nbd_ioctl+0x514/0xc50 [ 83.275303][ T5260] blkdev_ioctl+0x5f8/0xbb8 [ 83.276584][ T5260] block_ioctl+0xa4/0x118 [ 83.277878][ T5260] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.279277][ T5260] invoke_syscall+0x98/0x2b8 [ 83.280532][ T5260] el0_svc_common+0x138/0x258 [ 83.281862][ T5260] do_el0_svc+0x58/0x14c [ 83.283010][ T5260] el0_svc+0x78/0x1e0 [ 83.284116][ T5260] el0t_64_sync_handler+0xcc/0xe4 [ 83.285542][ T5260] el0t_64_sync+0x1a0/0x1a4 [ 83.291145][ T5262] CPU: 0 PID: 5262 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 83.294020][ T5262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.296951][ T5262] Call trace: [ 83.297919][ T5262] dump_backtrace+0x0/0x43c [ 83.299228][ T5262] show_stack+0x2c/0x3c [ 83.300384][ T5262] __dump_stack+0x30/0x40 [ 83.301604][ T5262] dump_stack_lvl+0xf8/0x160 [ 83.302887][ T5262] dump_stack+0x1c/0x5c [ 83.304036][ T5262] should_fail+0x3c0/0x51c [ 83.305329][ T5262] __should_failslab+0xbc/0x10c [ 83.306773][ T5262] should_failslab+0x10/0x28 [ 83.308092][ T5262] slab_pre_alloc_hook+0x64/0xec [ 83.309620][ T5262] __kmalloc_node+0xb8/0x520 [ 83.310692][ T5256] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.310906][ T5262] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.310924][ T5262] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.316156][ T5262] nbd_start_device+0x14c/0xb40 [ 83.317506][ T5262] nbd_ioctl+0x514/0xc50 [ 83.318800][ T5262] blkdev_ioctl+0x5f8/0xbb8 [ 83.320173][ T5262] block_ioctl+0xa4/0x118 [ 83.321429][ T5262] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.322820][ T5262] invoke_syscall+0x98/0x2b8 [ 83.324190][ T5262] el0_svc_common+0x138/0x258 [ 83.325619][ T5262] do_el0_svc+0x58/0x14c [ 83.326851][ T5262] el0_svc+0x78/0x1e0 [ 83.328008][ T5262] el0t_64_sync_handler+0xcc/0xe4 [ 83.329434][ T5262] el0t_64_sync+0x1a0/0x1a4 [ 83.338632][ T5261] CPU: 0 PID: 5261 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 83.341444][ T5261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.344364][ T5261] Call trace: [ 83.345367][ T5261] dump_backtrace+0x0/0x43c [ 83.346617][ T5261] show_stack+0x2c/0x3c [ 83.347802][ T5261] __dump_stack+0x30/0x40 [ 83.349043][ T5261] dump_stack_lvl+0xf8/0x160 [ 83.350349][ T5261] dump_stack+0x1c/0x5c [ 83.351568][ T5261] should_fail+0x3c0/0x51c [ 83.352812][ T5261] __should_failslab+0xbc/0x10c [ 83.354130][ T5261] should_failslab+0x10/0x28 [ 83.355406][ T5261] slab_pre_alloc_hook+0x64/0xec [ 83.356837][ T5261] __kmalloc_node+0xb8/0x520 [ 83.358119][ T5261] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.359670][ T5261] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.361288][ T5261] nbd_start_device+0x14c/0xb40 [ 83.362641][ T5261] nbd_ioctl+0x514/0xc50 [ 83.363806][ T5261] blkdev_ioctl+0x5f8/0xbb8 [ 83.365042][ T5261] block_ioctl+0xa4/0x118 [ 83.366239][ T5261] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.367605][ T5261] invoke_syscall+0x98/0x2b8 [ 83.368870][ T5261] el0_svc_common+0x138/0x258 [ 83.370146][ T5261] do_el0_svc+0x58/0x14c [ 83.371405][ T5261] el0_svc+0x78/0x1e0 [ 83.372557][ T5261] el0t_64_sync_handler+0xcc/0xe4 [ 83.374006][ T5261] el0t_64_sync+0x1a0/0x1a4 [ 83.394108][ T5260] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.395777][ T5275] block nbd1: shutting down sockets [ 83.413937][ T5261] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.418448][ T5262] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.479905][ T5270] FAULT_INJECTION: forcing a failure. [ 83.479905][ T5270] name failslab, interval 1, probability 0, space 0, times 0 [ 83.513446][ T5270] CPU: 1 PID: 5270 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 83.516216][ T5270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.519055][ T5270] Call trace: [ 83.519973][ T5270] dump_backtrace+0x0/0x43c [ 83.521203][ T5270] show_stack+0x2c/0x3c [ 83.522375][ T5270] __dump_stack+0x30/0x40 [ 83.523570][ T5270] dump_stack_lvl+0xf8/0x160 [ 83.524851][ T5270] dump_stack+0x1c/0x5c [ 83.526046][ T5270] should_fail+0x3c0/0x51c [ 83.527347][ T5270] __should_failslab+0xbc/0x10c [ 83.528713][ T5270] should_failslab+0x10/0x28 [ 83.530017][ T5270] slab_pre_alloc_hook+0x64/0xec [ 83.531470][ T5270] __kmalloc_node+0xb8/0x520 [ 83.532769][ T5270] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.534297][ T5270] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.535958][ T5270] nbd_start_device+0x14c/0xb40 [ 83.537325][ T5270] nbd_ioctl+0x514/0xc50 [ 83.538556][ T5270] blkdev_ioctl+0x5f8/0xbb8 [ 83.539807][ T5270] block_ioctl+0xa4/0x118 [ 83.541080][ T5270] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.542484][ T5270] invoke_syscall+0x98/0x2b8 [ 83.543759][ T5270] el0_svc_common+0x138/0x258 [ 83.545087][ T5270] do_el0_svc+0x58/0x14c [ 83.546291][ T5270] el0_svc+0x78/0x1e0 [ 83.547447][ T5270] el0t_64_sync_handler+0xcc/0xe4 [ 83.548922][ T5270] el0t_64_sync+0x1a0/0x1a4 [ 83.566382][ T5282] block nbd4: shutting down sockets [ 83.576356][ T5284] block nbd3: shutting down sockets [ 83.592985][ T5270] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.615814][ T5289] block nbd0: shutting down sockets [ 83.616274][ T5286] block nbd2: shutting down sockets [ 83.646459][ T5282] FAULT_INJECTION: forcing a failure. [ 83.646459][ T5282] name failslab, interval 1, probability 0, space 0, times 0 [ 83.651309][ T5284] FAULT_INJECTION: forcing a failure. [ 83.651309][ T5284] name failslab, interval 1, probability 0, space 0, times 0 [ 83.660263][ T5282] CPU: 0 PID: 5282 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 83.663171][ T5282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.666498][ T5282] Call trace: [ 83.667469][ T5282] dump_backtrace+0x0/0x43c [ 83.668818][ T5282] show_stack+0x2c/0x3c [ 83.670012][ T5282] __dump_stack+0x30/0x40 [ 83.671215][ T5282] dump_stack_lvl+0xf8/0x160 [ 83.672506][ T5282] dump_stack+0x1c/0x5c [ 83.673663][ T5282] should_fail+0x3c0/0x51c [ 83.675020][ T5282] __should_failslab+0xbc/0x10c [ 83.676441][ T5282] should_failslab+0x10/0x28 [ 83.677766][ T5282] slab_pre_alloc_hook+0x64/0xec [ 83.679209][ T5282] __kmalloc_node+0xb8/0x520 [ 83.680547][ T5282] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.682018][ T5282] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.683613][ T5282] nbd_start_device+0x14c/0xb40 [ 83.684971][ T5282] nbd_ioctl+0x514/0xc50 [ 83.686223][ T5282] blkdev_ioctl+0x5f8/0xbb8 [ 83.687549][ T5282] block_ioctl+0xa4/0x118 [ 83.688797][ T5282] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.690215][ T5282] invoke_syscall+0x98/0x2b8 [ 83.691505][ T5282] el0_svc_common+0x138/0x258 [ 83.692878][ T5282] do_el0_svc+0x58/0x14c [ 83.694048][ T5282] el0_svc+0x78/0x1e0 [ 83.695143][ T5282] el0t_64_sync_handler+0xcc/0xe4 [ 83.696614][ T5282] el0t_64_sync+0x1a0/0x1a4 [ 83.707978][ T5284] CPU: 0 PID: 5284 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 83.711027][ T5284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.714144][ T5284] Call trace: [ 83.714434][ T5279] FAULT_INJECTION: forcing a failure. [ 83.714434][ T5279] name failslab, interval 1, probability 0, space 0, times 0 [ 83.715095][ T5284] dump_backtrace+0x0/0x43c [ 83.720112][ T5284] show_stack+0x2c/0x3c [ 83.721286][ T5284] __dump_stack+0x30/0x40 [ 83.722464][ T5284] dump_stack_lvl+0xf8/0x160 [ 83.723787][ T5284] dump_stack+0x1c/0x5c [ 83.725027][ T5284] should_fail+0x3c0/0x51c [ 83.726228][ T5284] __should_failslab+0xbc/0x10c [ 83.727573][ T5284] should_failslab+0x10/0x28 [ 83.728874][ T5284] slab_pre_alloc_hook+0x64/0xec [ 83.730284][ T5284] __kmalloc_node+0xb8/0x520 [ 83.731677][ T5284] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.733221][ T5284] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.734812][ T5284] nbd_start_device+0x14c/0xb40 [ 83.736180][ T5284] nbd_ioctl+0x514/0xc50 [ 83.737351][ T5284] blkdev_ioctl+0x5f8/0xbb8 [ 83.738662][ T5284] block_ioctl+0xa4/0x118 [ 83.739867][ T5284] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.741210][ T5284] invoke_syscall+0x98/0x2b8 [ 83.742472][ T5284] el0_svc_common+0x138/0x258 [ 83.743843][ T5284] do_el0_svc+0x58/0x14c [ 83.745027][ T5284] el0_svc+0x78/0x1e0 [ 83.746164][ T5284] el0t_64_sync_handler+0xcc/0xe4 [ 83.747682][ T5284] el0t_64_sync+0x1a0/0x1a4 [ 83.750781][ T5279] CPU: 1 PID: 5279 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 83.753714][ T5279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.756589][ T5279] Call trace: [ 83.757540][ T5279] dump_backtrace+0x0/0x43c [ 83.758867][ T5279] show_stack+0x2c/0x3c [ 83.760007][ T5279] __dump_stack+0x30/0x40 [ 83.761181][ T5279] dump_stack_lvl+0xf8/0x160 [ 83.762553][ T5279] dump_stack+0x1c/0x5c [ 83.763732][ T5279] should_fail+0x3c0/0x51c [ 83.764950][ T5279] __should_failslab+0xbc/0x10c [ 83.766348][ T5279] should_failslab+0x10/0x28 [ 83.767686][ T5279] slab_pre_alloc_hook+0x64/0xec [ 83.769073][ T5279] __kmalloc_node+0xb8/0x520 [ 83.770352][ T5279] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 83.772004][ T5279] nbd_start_device+0x14c/0xb40 [ 83.773331][ T5279] nbd_ioctl+0x514/0xc50 [ 83.774545][ T5279] blkdev_ioctl+0x5f8/0xbb8 [ 83.775844][ T5279] block_ioctl+0xa4/0x118 [ 83.777108][ T5279] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.778452][ T5279] invoke_syscall+0x98/0x2b8 [ 83.779767][ T5279] el0_svc_common+0x138/0x258 [ 83.781090][ T5279] do_el0_svc+0x58/0x14c [ 83.782225][ T5279] el0_svc+0x78/0x1e0 [ 83.783405][ T5279] el0t_64_sync_handler+0xcc/0xe4 [ 83.784828][ T5279] el0t_64_sync+0x1a0/0x1a4 [ 83.794685][ T5282] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.809983][ T5286] FAULT_INJECTION: forcing a failure. [ 83.809983][ T5286] name failslab, interval 1, probability 0, space 0, times 0 [ 83.813512][ T5286] CPU: 1 PID: 5286 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 83.816331][ T5286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.819264][ T5286] Call trace: [ 83.820180][ T5286] dump_backtrace+0x0/0x43c [ 83.821455][ T5286] show_stack+0x2c/0x3c [ 83.822659][ T5286] __dump_stack+0x30/0x40 [ 83.823873][ T5286] dump_stack_lvl+0xf8/0x160 [ 83.825181][ T5286] dump_stack+0x1c/0x5c [ 83.826390][ T5286] should_fail+0x3c0/0x51c [ 83.826989][ T5284] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 83.827560][ T5286] __should_failslab+0xbc/0x10c 1970/01/01 00:01:23 executed programs: 150 [ 83.827578][ T5286] should_failslab+0x10/0x28 [ 83.827588][ T5286] slab_pre_alloc_hook+0x64/0xec [ 83.827599][ T5286] __kmalloc_node+0xb8/0x520 [ 83.827607][ T5286] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 83.836314][ T5286] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 83.837885][ T5286] nbd_start_device+0x14c/0xb40 [ 83.839307][ T5286] nbd_ioctl+0x514/0xc50 [ 83.840609][ T5286] blkdev_ioctl+0x5f8/0xbb8 [ 83.841858][ T5286] block_ioctl+0xa4/0x118 [ 83.843116][ T5286] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.844416][ T5286] invoke_syscall+0x98/0x2b8 [ 83.845653][ T5286] el0_svc_common+0x138/0x258 [ 83.846964][ T5286] do_el0_svc+0x58/0x14c [ 83.848259][ T5286] el0_svc+0x78/0x1e0 [ 83.849408][ T5286] el0t_64_sync_handler+0xcc/0xe4 [ 83.850792][ T5286] el0t_64_sync+0x1a0/0x1a4 [ 83.905661][ T5301] block nbd1: Device being setup by another task [ 83.909686][ T5297] block nbd1: shutting down sockets [ 83.921416][ T5297] FAULT_INJECTION: forcing a failure. [ 83.921416][ T5297] name failslab, interval 1, probability 0, space 0, times 0 [ 83.935689][ T5297] CPU: 1 PID: 5297 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 83.936128][ T5303] block nbd4: shutting down sockets [ 83.938531][ T5297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 83.938544][ T5297] Call trace: [ 83.938547][ T5297] dump_backtrace+0x0/0x43c [ 83.938562][ T5297] show_stack+0x2c/0x3c [ 83.938571][ T5297] __dump_stack+0x30/0x40 [ 83.938582][ T5297] dump_stack_lvl+0xf8/0x160 [ 83.948861][ T5297] dump_stack+0x1c/0x5c [ 83.950093][ T5297] should_fail+0x3c0/0x51c [ 83.951440][ T5297] __should_failslab+0xbc/0x10c [ 83.952862][ T5297] should_failslab+0x10/0x28 [ 83.954146][ T5297] slab_pre_alloc_hook+0x64/0xec [ 83.955553][ T5297] kmem_cache_alloc+0x94/0x3e4 [ 83.956873][ T5297] new_inode_pseudo+0x10c/0x1fc [ 83.958297][ T5297] new_inode+0x38/0x174 [ 83.959484][ T5297] debugfs_create_dir+0xec/0x3f4 [ 83.960862][ T5297] nbd_start_device+0x3c8/0xb40 [ 83.962227][ T5297] nbd_ioctl+0x514/0xc50 [ 83.963493][ T5297] blkdev_ioctl+0x5f8/0xbb8 [ 83.964789][ T5297] block_ioctl+0xa4/0x118 [ 83.966094][ T5297] __arm64_sys_ioctl+0x14c/0x1c8 [ 83.967482][ T5297] invoke_syscall+0x98/0x2b8 [ 83.968707][ T5297] el0_svc_common+0x138/0x258 [ 83.970071][ T5297] do_el0_svc+0x58/0x14c [ 83.971277][ T5297] el0_svc+0x78/0x1e0 [ 83.972437][ T5297] el0t_64_sync_handler+0xcc/0xe4 [ 83.973852][ T5297] el0t_64_sync+0x1a0/0x1a4 [ 83.979534][ T5286] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.012883][ T5303] FAULT_INJECTION: forcing a failure. [ 84.012883][ T5303] name failslab, interval 1, probability 0, space 0, times 0 [ 84.038287][ T5303] CPU: 0 PID: 5303 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 84.041252][ T5303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.044259][ T5303] Call trace: [ 84.045207][ T5303] dump_backtrace+0x0/0x43c [ 84.046499][ T5303] show_stack+0x2c/0x3c [ 84.047746][ T5303] __dump_stack+0x30/0x40 [ 84.048991][ T5303] dump_stack_lvl+0xf8/0x160 [ 84.050384][ T5303] dump_stack+0x1c/0x5c [ 84.051549][ T5303] should_fail+0x3c0/0x51c [ 84.052822][ T5303] __should_failslab+0xbc/0x10c [ 84.054236][ T5303] should_failslab+0x10/0x28 [ 84.055540][ T5303] slab_pre_alloc_hook+0x64/0xec [ 84.057026][ T5303] __kmalloc_node+0xb8/0x520 [ 84.058328][ T5303] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 84.059961][ T5303] nbd_start_device+0x14c/0xb40 [ 84.061461][ T5303] nbd_ioctl+0x514/0xc50 [ 84.062631][ T5303] blkdev_ioctl+0x5f8/0xbb8 [ 84.063960][ T5303] block_ioctl+0xa4/0x118 [ 84.065190][ T5303] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.066558][ T5303] invoke_syscall+0x98/0x2b8 [ 84.067894][ T5303] el0_svc_common+0x138/0x258 [ 84.069227][ T5303] do_el0_svc+0x58/0x14c [ 84.070435][ T5303] el0_svc+0x78/0x1e0 [ 84.071389][ T5297] debugfs: out of free dentries, can not create directory 'nbd1' [ 84.071562][ T5303] el0t_64_sync_handler+0xcc/0xe4 [ 84.075197][ T5303] el0t_64_sync+0x1a0/0x1a4 [ 84.081137][ T5297] block nbd1: Failed to create debugfs dir for 'nbd1' [ 84.087781][ T5307] block nbd3: shutting down sockets [ 84.130726][ T5305] FAULT_INJECTION: forcing a failure. [ 84.130726][ T5305] name failslab, interval 1, probability 0, space 0, times 0 [ 84.134311][ T5305] CPU: 0 PID: 5305 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 84.137162][ T5305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.140087][ T5305] Call trace: [ 84.140979][ T5305] dump_backtrace+0x0/0x43c [ 84.142284][ T5305] show_stack+0x2c/0x3c [ 84.143517][ T5305] __dump_stack+0x30/0x40 [ 84.144670][ T5305] dump_stack_lvl+0xf8/0x160 [ 84.145923][ T5305] dump_stack+0x1c/0x5c [ 84.147119][ T5305] should_fail+0x3c0/0x51c [ 84.148380][ T5305] __should_failslab+0xbc/0x10c [ 84.149713][ T5305] should_failslab+0x10/0x28 [ 84.150996][ T5305] slab_pre_alloc_hook+0x64/0xec [ 84.152342][ T5305] __kmalloc_node+0xb8/0x520 [ 84.153639][ T5305] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.155122][ T5305] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.156728][ T5305] nbd_start_device+0x14c/0xb40 [ 84.158067][ T5305] nbd_ioctl+0x514/0xc50 [ 84.159307][ T5305] blkdev_ioctl+0x5f8/0xbb8 [ 84.160511][ T5305] block_ioctl+0xa4/0x118 [ 84.161763][ T5305] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.163238][ T5305] invoke_syscall+0x98/0x2b8 [ 84.164483][ T5305] el0_svc_common+0x138/0x258 [ 84.165998][ T5305] do_el0_svc+0x58/0x14c [ 84.167207][ T5305] el0_svc+0x78/0x1e0 [ 84.168345][ T5305] el0t_64_sync_handler+0xcc/0xe4 [ 84.169778][ T5305] el0t_64_sync+0x1a0/0x1a4 [ 84.219038][ T5316] block nbd0: shutting down sockets [ 84.255799][ T5318] block nbd2: shutting down sockets [ 84.285604][ T5325] block nbd1: shutting down sockets [ 84.292578][ T5305] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.301815][ T5311] FAULT_INJECTION: forcing a failure. [ 84.301815][ T5311] name failslab, interval 1, probability 0, space 0, times 0 [ 84.310719][ T5318] FAULT_INJECTION: forcing a failure. [ 84.310719][ T5318] name failslab, interval 1, probability 0, space 0, times 0 [ 84.316060][ T5320] block nbd4: shutting down sockets [ 84.321796][ T5318] CPU: 0 PID: 5318 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 84.324681][ T5318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.327462][ T5318] Call trace: [ 84.328350][ T5318] dump_backtrace+0x0/0x43c [ 84.329579][ T5318] show_stack+0x2c/0x3c [ 84.330799][ T5318] __dump_stack+0x30/0x40 [ 84.332005][ T5318] dump_stack_lvl+0xf8/0x160 [ 84.333365][ T5318] dump_stack+0x1c/0x5c [ 84.334610][ T5318] should_fail+0x3c0/0x51c [ 84.335832][ T5318] __should_failslab+0xbc/0x10c [ 84.337171][ T5318] should_failslab+0x10/0x28 [ 84.338445][ T5318] slab_pre_alloc_hook+0x64/0xec [ 84.339828][ T5318] __kmalloc_node+0xb8/0x520 [ 84.341307][ T5318] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.342846][ T5318] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.344505][ T5318] nbd_start_device+0x14c/0xb40 [ 84.345887][ T5318] nbd_ioctl+0x514/0xc50 [ 84.347182][ T5318] blkdev_ioctl+0x5f8/0xbb8 [ 84.348526][ T5318] block_ioctl+0xa4/0x118 [ 84.349814][ T5318] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.351284][ T5318] invoke_syscall+0x98/0x2b8 [ 84.352589][ T5318] el0_svc_common+0x138/0x258 [ 84.354039][ T5318] do_el0_svc+0x58/0x14c [ 84.355268][ T5318] el0_svc+0x78/0x1e0 [ 84.356401][ T5318] el0t_64_sync_handler+0xcc/0xe4 [ 84.358136][ T5318] el0t_64_sync+0x1a0/0x1a4 [ 84.378415][ T5311] CPU: 0 PID: 5311 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 84.381419][ T5311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.384348][ T5311] Call trace: [ 84.385268][ T5311] dump_backtrace+0x0/0x43c [ 84.386550][ T5311] show_stack+0x2c/0x3c [ 84.387721][ T5311] __dump_stack+0x30/0x40 [ 84.389007][ T5311] dump_stack_lvl+0xf8/0x160 [ 84.390340][ T5311] dump_stack+0x1c/0x5c [ 84.391607][ T5311] should_fail+0x3c0/0x51c [ 84.392927][ T5311] __should_failslab+0xbc/0x10c [ 84.394297][ T5311] should_failslab+0x10/0x28 [ 84.395571][ T5311] slab_pre_alloc_hook+0x64/0xec [ 84.397207][ T5311] __kmalloc_node+0xb8/0x520 [ 84.398653][ T5311] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.400133][ T5311] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.401854][ T5311] nbd_start_device+0x14c/0xb40 [ 84.403371][ T5311] nbd_ioctl+0x514/0xc50 [ 84.404630][ T5311] blkdev_ioctl+0x5f8/0xbb8 [ 84.405992][ T5311] block_ioctl+0xa4/0x118 [ 84.407258][ T5311] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.408688][ T5311] invoke_syscall+0x98/0x2b8 [ 84.410047][ T5311] el0_svc_common+0x138/0x258 [ 84.411416][ T5311] do_el0_svc+0x58/0x14c [ 84.412641][ T5311] el0_svc+0x78/0x1e0 [ 84.413814][ T5311] el0t_64_sync_handler+0xcc/0xe4 [ 84.415352][ T5311] el0t_64_sync+0x1a0/0x1a4 [ 84.429642][ T5319] FAULT_INJECTION: forcing a failure. [ 84.429642][ T5319] name failslab, interval 1, probability 0, space 0, times 0 [ 84.433306][ T5319] CPU: 1 PID: 5319 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 84.436146][ T5319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.439205][ T5319] Call trace: [ 84.440164][ T5319] dump_backtrace+0x0/0x43c [ 84.441487][ T5319] show_stack+0x2c/0x3c [ 84.442661][ T5319] __dump_stack+0x30/0x40 [ 84.443922][ T5319] dump_stack_lvl+0xf8/0x160 [ 84.445296][ T5311] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.445307][ T5319] dump_stack+0x1c/0x5c [ 84.448503][ T5319] should_fail+0x3c0/0x51c [ 84.449796][ T5319] __should_failslab+0xbc/0x10c [ 84.451187][ T5319] should_failslab+0x10/0x28 [ 84.452485][ T5319] slab_pre_alloc_hook+0x64/0xec [ 84.453839][ T5319] __kmalloc_node+0xb8/0x520 [ 84.454510][ T5318] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.455116][ T5319] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.455136][ T5319] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.455147][ T5319] nbd_start_device+0x14c/0xb40 [ 84.455158][ T5319] nbd_ioctl+0x514/0xc50 [ 84.455167][ T5319] blkdev_ioctl+0x5f8/0xbb8 [ 84.455175][ T5319] block_ioctl+0xa4/0x118 [ 84.455185][ T5319] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.455196][ T5319] invoke_syscall+0x98/0x2b8 [ 84.455207][ T5319] el0_svc_common+0x138/0x258 [ 84.455216][ T5319] do_el0_svc+0x58/0x14c [ 84.455225][ T5319] el0_svc+0x78/0x1e0 [ 84.455235][ T5319] el0t_64_sync_handler+0xcc/0xe4 [ 84.455243][ T5319] el0t_64_sync+0x1a0/0x1a4 [ 84.464842][ T5320] FAULT_INJECTION: forcing a failure. [ 84.464842][ T5320] name failslab, interval 1, probability 0, space 0, times 0 [ 84.470240][ T5319] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.511695][ T5320] CPU: 0 PID: 5320 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 84.514691][ T5320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.517624][ T5320] Call trace: [ 84.518575][ T5320] dump_backtrace+0x0/0x43c [ 84.519835][ T5320] show_stack+0x2c/0x3c [ 84.521056][ T5320] __dump_stack+0x30/0x40 [ 84.522401][ T5320] dump_stack_lvl+0xf8/0x160 [ 84.523825][ T5320] dump_stack+0x1c/0x5c [ 84.525083][ T5320] should_fail+0x3c0/0x51c [ 84.526452][ T5320] __should_failslab+0xbc/0x10c [ 84.527937][ T5320] should_failslab+0x10/0x28 [ 84.529410][ T5320] slab_pre_alloc_hook+0x64/0xec [ 84.530976][ T5320] __kmalloc_node+0xb8/0x520 [ 84.532376][ T5320] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.534046][ T5320] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.535799][ T5320] nbd_start_device+0x14c/0xb40 [ 84.537323][ T5320] nbd_ioctl+0x514/0xc50 [ 84.538676][ T5320] blkdev_ioctl+0x5f8/0xbb8 [ 84.540143][ T5320] block_ioctl+0xa4/0x118 [ 84.541526][ T5320] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.543057][ T5320] invoke_syscall+0x98/0x2b8 [ 84.544481][ T5320] el0_svc_common+0x138/0x258 [ 84.545938][ T5320] do_el0_svc+0x58/0x14c [ 84.547221][ T5320] el0_svc+0x78/0x1e0 [ 84.548496][ T5320] el0t_64_sync_handler+0xcc/0xe4 [ 84.550051][ T5320] el0t_64_sync+0x1a0/0x1a4 [ 84.558301][ T5331] block nbd3: shutting down sockets [ 84.564849][ T5320] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.600230][ T5330] FAULT_INJECTION: forcing a failure. [ 84.600230][ T5330] name failslab, interval 1, probability 0, space 0, times 0 [ 84.603961][ T5330] CPU: 1 PID: 5330 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 84.606767][ T5330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.609602][ T5330] Call trace: [ 84.610613][ T5330] dump_backtrace+0x0/0x43c [ 84.611855][ T5330] show_stack+0x2c/0x3c [ 84.613154][ T5330] __dump_stack+0x30/0x40 [ 84.614360][ T5330] dump_stack_lvl+0xf8/0x160 [ 84.615706][ T5330] dump_stack+0x1c/0x5c [ 84.616900][ T5330] should_fail+0x3c0/0x51c [ 84.618245][ T5330] __should_failslab+0xbc/0x10c [ 84.619725][ T5330] should_failslab+0x10/0x28 [ 84.621047][ T5330] slab_pre_alloc_hook+0x64/0xec [ 84.622550][ T5330] __kmalloc_node+0xb8/0x520 [ 84.623902][ T5330] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.625439][ T5330] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.627004][ T5330] nbd_start_device+0x14c/0xb40 [ 84.628402][ T5330] nbd_ioctl+0x514/0xc50 [ 84.629640][ T5330] blkdev_ioctl+0x5f8/0xbb8 [ 84.630850][ T5330] block_ioctl+0xa4/0x118 [ 84.632149][ T5330] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.633554][ T5330] invoke_syscall+0x98/0x2b8 [ 84.634912][ T5330] el0_svc_common+0x138/0x258 [ 84.636225][ T5330] do_el0_svc+0x58/0x14c [ 84.637451][ T5330] el0_svc+0x78/0x1e0 [ 84.638578][ T5330] el0t_64_sync_handler+0xcc/0xe4 [ 84.640012][ T5330] el0t_64_sync+0x1a0/0x1a4 [ 84.666446][ T5338] block nbd1: shutting down sockets [ 84.691202][ T5337] block nbd0: shutting down sockets [ 84.696361][ T5336] block nbd2: shutting down sockets [ 84.702176][ T5334] FAULT_INJECTION: forcing a failure. [ 84.702176][ T5334] name failslab, interval 1, probability 0, space 0, times 0 [ 84.712277][ T5330] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.718262][ T5334] CPU: 0 PID: 5334 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 84.721575][ T5334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.724756][ T5334] Call trace: [ 84.725770][ T5334] dump_backtrace+0x0/0x43c [ 84.727161][ T5334] show_stack+0x2c/0x3c [ 84.728420][ T5334] __dump_stack+0x30/0x40 [ 84.729797][ T5334] dump_stack_lvl+0xf8/0x160 [ 84.731237][ T5334] dump_stack+0x1c/0x5c [ 84.732585][ T5334] should_fail+0x3c0/0x51c [ 84.733919][ T5334] __should_failslab+0xbc/0x10c [ 84.735373][ T5334] should_failslab+0x10/0x28 [ 84.736779][ T5334] slab_pre_alloc_hook+0x64/0xec [ 84.738330][ T5334] __kmalloc_node+0xb8/0x520 [ 84.739744][ T5334] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.741356][ T5334] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.743196][ T5334] nbd_start_device+0x14c/0xb40 [ 84.744691][ T5334] nbd_ioctl+0x514/0xc50 [ 84.745985][ T5334] blkdev_ioctl+0x5f8/0xbb8 [ 84.747438][ T5334] block_ioctl+0xa4/0x118 [ 84.748768][ T5334] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.750190][ T5334] invoke_syscall+0x98/0x2b8 [ 84.751578][ T5334] el0_svc_common+0x138/0x258 [ 84.752997][ T5334] do_el0_svc+0x58/0x14c [ 84.754281][ T5334] el0_svc+0x78/0x1e0 [ 84.755602][ T5334] el0t_64_sync_handler+0xcc/0xe4 [ 84.757159][ T5334] el0t_64_sync+0x1a0/0x1a4 [ 84.760271][ T5334] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.776927][ T5337] FAULT_INJECTION: forcing a failure. [ 84.776927][ T5337] name failslab, interval 1, probability 0, space 0, times 0 [ 84.790080][ T5337] CPU: 1 PID: 5337 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 84.793083][ T5337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.796065][ T5337] Call trace: [ 84.796984][ T5337] dump_backtrace+0x0/0x43c [ 84.798453][ T5337] show_stack+0x2c/0x3c [ 84.799649][ T5337] __dump_stack+0x30/0x40 [ 84.800922][ T5337] dump_stack_lvl+0xf8/0x160 [ 84.802215][ T5337] dump_stack+0x1c/0x5c [ 84.803408][ T5337] should_fail+0x3c0/0x51c [ 84.804090][ T5336] FAULT_INJECTION: forcing a failure. [ 84.804090][ T5336] name failslab, interval 1, probability 0, space 0, times 0 [ 84.804694][ T5337] __should_failslab+0xbc/0x10c [ 84.804712][ T5337] should_failslab+0x10/0x28 [ 84.804722][ T5337] slab_pre_alloc_hook+0x64/0xec [ 84.804732][ T5337] __kmalloc_node+0xb8/0x520 [ 84.814215][ T5337] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.815759][ T5337] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.817406][ T5337] nbd_start_device+0x14c/0xb40 [ 84.818861][ T5337] nbd_ioctl+0x514/0xc50 [ 84.820135][ T5337] blkdev_ioctl+0x5f8/0xbb8 [ 84.821473][ T5337] block_ioctl+0xa4/0x118 [ 84.822691][ T5337] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.824087][ T5337] invoke_syscall+0x98/0x2b8 [ 84.825457][ T5337] el0_svc_common+0x138/0x258 [ 84.826854][ T5337] do_el0_svc+0x58/0x14c [ 84.828047][ T5337] el0_svc+0x78/0x1e0 [ 84.829176][ T5337] el0t_64_sync_handler+0xcc/0xe4 [ 84.830631][ T5337] el0t_64_sync+0x1a0/0x1a4 [ 84.831814][ T5336] CPU: 0 PID: 5336 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 84.834926][ T5336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.838009][ T5336] Call trace: [ 84.839061][ T5336] dump_backtrace+0x0/0x43c [ 84.840396][ T5336] show_stack+0x2c/0x3c [ 84.841675][ T5336] __dump_stack+0x30/0x40 [ 84.843051][ T5336] dump_stack_lvl+0xf8/0x160 [ 84.844438][ T5336] dump_stack+0x1c/0x5c [ 84.845738][ T5336] should_fail+0x3c0/0x51c [ 84.847039][ T5336] __should_failslab+0xbc/0x10c [ 84.848559][ T5336] should_failslab+0x10/0x28 [ 84.849978][ T5336] slab_pre_alloc_hook+0x64/0xec [ 84.851483][ T5336] __kmalloc_node+0xb8/0x520 [ 84.852939][ T5336] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.854600][ T5336] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.856369][ T5336] nbd_start_device+0x14c/0xb40 [ 84.857879][ T5336] nbd_ioctl+0x514/0xc50 [ 84.859158][ T5336] blkdev_ioctl+0x5f8/0xbb8 [ 84.860556][ T5336] block_ioctl+0xa4/0x118 [ 84.861906][ T5336] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.863419][ T5336] invoke_syscall+0x98/0x2b8 [ 84.864822][ T5336] el0_svc_common+0x138/0x258 [ 84.866199][ T5336] do_el0_svc+0x58/0x14c [ 84.867482][ T5336] el0_svc+0x78/0x1e0 [ 84.868712][ T5336] el0t_64_sync_handler+0xcc/0xe4 [ 84.870209][ T5336] el0t_64_sync+0x1a0/0x1a4 [ 84.877797][ T5343] block nbd4: shutting down sockets [ 84.888326][ T5336] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.894765][ T5337] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.942975][ T5347] FAULT_INJECTION: forcing a failure. [ 84.942975][ T5347] name failslab, interval 1, probability 0, space 0, times 0 [ 84.945915][ T5345] block nbd3: shutting down sockets [ 84.949319][ T5347] CPU: 0 PID: 5347 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 84.952433][ T5347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 84.955539][ T5347] Call trace: [ 84.956600][ T5347] dump_backtrace+0x0/0x43c [ 84.958022][ T5347] show_stack+0x2c/0x3c [ 84.959265][ T5347] __dump_stack+0x30/0x40 [ 84.960594][ T5347] dump_stack_lvl+0xf8/0x160 [ 84.962014][ T5347] dump_stack+0x1c/0x5c [ 84.963323][ T5347] should_fail+0x3c0/0x51c [ 84.964682][ T5347] __should_failslab+0xbc/0x10c [ 84.966192][ T5347] should_failslab+0x10/0x28 [ 84.967537][ T5347] slab_pre_alloc_hook+0x64/0xec [ 84.969055][ T5347] __kmalloc_node+0xb8/0x520 [ 84.970461][ T5347] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 84.972071][ T5347] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 84.973856][ T5347] nbd_start_device+0x14c/0xb40 [ 84.975369][ T5347] nbd_ioctl+0x514/0xc50 [ 84.976664][ T5347] blkdev_ioctl+0x5f8/0xbb8 [ 84.978046][ T5347] block_ioctl+0xa4/0x118 [ 84.979366][ T5347] __arm64_sys_ioctl+0x14c/0x1c8 [ 84.980924][ T5347] invoke_syscall+0x98/0x2b8 [ 84.982297][ T5347] el0_svc_common+0x138/0x258 [ 84.983718][ T5347] do_el0_svc+0x58/0x14c [ 84.985015][ T5347] el0_svc+0x78/0x1e0 [ 84.986207][ T5347] el0t_64_sync_handler+0xcc/0xe4 [ 84.987722][ T5347] el0t_64_sync+0x1a0/0x1a4 [ 84.997327][ T5347] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 84.999904][ T5345] FAULT_INJECTION: forcing a failure. [ 84.999904][ T5345] name failslab, interval 1, probability 0, space 0, times 0 [ 85.003941][ T5345] CPU: 1 PID: 5345 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 85.006777][ T5345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.009643][ T5345] Call trace: [ 85.010544][ T5345] dump_backtrace+0x0/0x43c [ 85.011856][ T5345] show_stack+0x2c/0x3c [ 85.013013][ T5345] __dump_stack+0x30/0x40 [ 85.014275][ T5345] dump_stack_lvl+0xf8/0x160 [ 85.015619][ T5345] dump_stack+0x1c/0x5c [ 85.016902][ T5345] should_fail+0x3c0/0x51c [ 85.018178][ T5345] __should_failslab+0xbc/0x10c [ 85.019523][ T5345] should_failslab+0x10/0x28 [ 85.020854][ T5345] slab_pre_alloc_hook+0x64/0xec [ 85.022253][ T5345] __kmalloc_node+0xb8/0x520 [ 85.023555][ T5345] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.025084][ T5345] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.026723][ T5345] nbd_start_device+0x14c/0xb40 [ 85.028080][ T5345] nbd_ioctl+0x514/0xc50 [ 85.029306][ T5345] blkdev_ioctl+0x5f8/0xbb8 [ 85.030629][ T5345] block_ioctl+0xa4/0x118 [ 85.031843][ T5345] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.033266][ T5345] invoke_syscall+0x98/0x2b8 [ 85.034576][ T5345] el0_svc_common+0x138/0x258 [ 85.035953][ T5345] do_el0_svc+0x58/0x14c [ 85.037161][ T5345] el0_svc+0x78/0x1e0 [ 85.038307][ T5345] el0t_64_sync_handler+0xcc/0xe4 [ 85.039715][ T5345] el0t_64_sync+0x1a0/0x1a4 [ 85.053877][ T5352] block nbd1: shutting down sockets [ 85.059740][ T5345] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.105528][ T5351] block nbd2: shutting down sockets [ 85.128074][ T5348] FAULT_INJECTION: forcing a failure. [ 85.128074][ T5348] name failslab, interval 1, probability 0, space 0, times 0 [ 85.134883][ T5348] CPU: 0 PID: 5348 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 85.137975][ T5348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.140878][ T5348] Call trace: [ 85.141767][ T5348] dump_backtrace+0x0/0x43c [ 85.143042][ T5348] show_stack+0x2c/0x3c [ 85.144195][ T5348] __dump_stack+0x30/0x40 [ 85.145408][ T5348] dump_stack_lvl+0xf8/0x160 [ 85.146745][ T5348] dump_stack+0x1c/0x5c [ 85.147990][ T5348] should_fail+0x3c0/0x51c [ 85.149294][ T5348] __should_failslab+0xbc/0x10c [ 85.150675][ T5348] should_failslab+0x10/0x28 [ 85.151977][ T5348] slab_pre_alloc_hook+0x64/0xec [ 85.153421][ T5348] __kmalloc_node+0xb8/0x520 [ 85.154665][ T5348] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.156304][ T5348] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.157946][ T5348] nbd_start_device+0x14c/0xb40 [ 85.159344][ T5348] nbd_ioctl+0x514/0xc50 [ 85.160625][ T5348] blkdev_ioctl+0x5f8/0xbb8 [ 85.161960][ T5348] block_ioctl+0xa4/0x118 [ 85.163294][ T5348] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.164837][ T5348] invoke_syscall+0x98/0x2b8 [ 85.166175][ T5348] el0_svc_common+0x138/0x258 [ 85.167555][ T5348] do_el0_svc+0x58/0x14c [ 85.168801][ T5348] el0_svc+0x78/0x1e0 [ 85.169953][ T5348] el0t_64_sync_handler+0xcc/0xe4 [ 85.171382][ T5348] el0t_64_sync+0x1a0/0x1a4 [ 85.175562][ T5360] block nbd0: shutting down sockets [ 85.183782][ T5350] FAULT_INJECTION: forcing a failure. [ 85.183782][ T5350] name failslab, interval 1, probability 0, space 0, times 0 [ 85.187358][ T5348] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.189594][ T5350] CPU: 1 PID: 5350 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 85.192781][ T5350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.195770][ T5350] Call trace: [ 85.196676][ T5350] dump_backtrace+0x0/0x43c [ 85.198004][ T5350] show_stack+0x2c/0x3c [ 85.199169][ T5350] __dump_stack+0x30/0x40 [ 85.200447][ T5350] dump_stack_lvl+0xf8/0x160 [ 85.201762][ T5350] dump_stack+0x1c/0x5c [ 85.202965][ T5350] should_fail+0x3c0/0x51c [ 85.204216][ T5350] __should_failslab+0xbc/0x10c [ 85.205588][ T5350] should_failslab+0x10/0x28 [ 85.206882][ T5350] slab_pre_alloc_hook+0x64/0xec [ 85.208352][ T5350] __kmalloc_node+0xb8/0x520 [ 85.209713][ T5350] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 85.211458][ T5350] nbd_start_device+0x14c/0xb40 [ 85.212942][ T5350] nbd_ioctl+0x514/0xc50 [ 85.214124][ T5350] blkdev_ioctl+0x5f8/0xbb8 [ 85.215506][ T5350] block_ioctl+0xa4/0x118 [ 85.216809][ T5350] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.218190][ T5350] invoke_syscall+0x98/0x2b8 [ 85.219539][ T5350] el0_svc_common+0x138/0x258 [ 85.220822][ T5350] do_el0_svc+0x58/0x14c [ 85.222072][ T5350] el0_svc+0x78/0x1e0 [ 85.223179][ T5350] el0t_64_sync_handler+0xcc/0xe4 [ 85.224679][ T5350] el0t_64_sync+0x1a0/0x1a4 [ 85.235822][ T5362] block nbd3: shutting down sockets [ 85.240243][ T5355] FAULT_INJECTION: forcing a failure. [ 85.240243][ T5355] name failslab, interval 1, probability 0, space 0, times 0 [ 85.243791][ T5355] CPU: 1 PID: 5355 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 85.246740][ T5355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.249760][ T5355] Call trace: [ 85.250726][ T5355] dump_backtrace+0x0/0x43c [ 85.252050][ T5355] show_stack+0x2c/0x3c [ 85.253201][ T5355] __dump_stack+0x30/0x40 [ 85.254408][ T5355] dump_stack_lvl+0xf8/0x160 [ 85.255720][ T5355] dump_stack+0x1c/0x5c [ 85.256984][ T5355] should_fail+0x3c0/0x51c [ 85.258228][ T5355] __should_failslab+0xbc/0x10c [ 85.259689][ T5355] should_failslab+0x10/0x28 [ 85.261069][ T5355] slab_pre_alloc_hook+0x64/0xec [ 85.262500][ T5355] __kmalloc_node+0xb8/0x520 [ 85.263883][ T5355] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.265481][ T5355] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.267147][ T5355] nbd_start_device+0x14c/0xb40 [ 85.268623][ T5355] nbd_ioctl+0x514/0xc50 [ 85.269872][ T5355] blkdev_ioctl+0x5f8/0xbb8 [ 85.271097][ T5355] block_ioctl+0xa4/0x118 [ 85.272323][ T5355] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.273824][ T5355] invoke_syscall+0x98/0x2b8 [ 85.275156][ T5355] el0_svc_common+0x138/0x258 [ 85.276550][ T5355] do_el0_svc+0x58/0x14c [ 85.277809][ T5355] el0_svc+0x78/0x1e0 [ 85.278940][ T5355] el0t_64_sync_handler+0xcc/0xe4 [ 85.280388][ T5355] el0t_64_sync+0x1a0/0x1a4 [ 85.291947][ T5361] block nbd4: shutting down sockets [ 85.308926][ T5355] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.332448][ T5357] FAULT_INJECTION: forcing a failure. [ 85.332448][ T5357] name failslab, interval 1, probability 0, space 0, times 0 [ 85.343021][ T5359] FAULT_INJECTION: forcing a failure. [ 85.343021][ T5359] name failslab, interval 1, probability 0, space 0, times 0 [ 85.348184][ T5359] CPU: 0 PID: 5359 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 85.351176][ T5359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.354031][ T5359] Call trace: [ 85.354962][ T5359] dump_backtrace+0x0/0x43c [ 85.356286][ T5359] show_stack+0x2c/0x3c [ 85.357523][ T5359] __dump_stack+0x30/0x40 [ 85.358765][ T5359] dump_stack_lvl+0xf8/0x160 [ 85.360283][ T5359] dump_stack+0x1c/0x5c [ 85.361538][ T5359] should_fail+0x3c0/0x51c [ 85.362816][ T5359] __should_failslab+0xbc/0x10c [ 85.364168][ T5359] should_failslab+0x10/0x28 [ 85.365538][ T5359] slab_pre_alloc_hook+0x64/0xec [ 85.367006][ T5359] __kmalloc_node+0xb8/0x520 [ 85.368332][ T5359] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.369909][ T5359] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.371589][ T5359] nbd_start_device+0x14c/0xb40 [ 85.372721][ T5364] block nbd1: shutting down sockets [ 85.373032][ T5359] nbd_ioctl+0x514/0xc50 [ 85.373049][ T5359] blkdev_ioctl+0x5f8/0xbb8 [ 85.373058][ T5359] block_ioctl+0xa4/0x118 [ 85.378395][ T5359] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.379931][ T5359] invoke_syscall+0x98/0x2b8 [ 85.381295][ T5359] el0_svc_common+0x138/0x258 [ 85.382609][ T5359] do_el0_svc+0x58/0x14c [ 85.383874][ T5359] el0_svc+0x78/0x1e0 [ 85.385029][ T5359] el0t_64_sync_handler+0xcc/0xe4 [ 85.386497][ T5359] el0t_64_sync+0x1a0/0x1a4 [ 85.390056][ T5357] CPU: 1 PID: 5357 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 85.392994][ T5357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.395993][ T5357] Call trace: [ 85.396986][ T5357] dump_backtrace+0x0/0x43c [ 85.398248][ T5357] show_stack+0x2c/0x3c [ 85.399435][ T5357] __dump_stack+0x30/0x40 [ 85.400697][ T5357] dump_stack_lvl+0xf8/0x160 [ 85.402002][ T5357] dump_stack+0x1c/0x5c [ 85.403196][ T5357] should_fail+0x3c0/0x51c [ 85.404443][ T5357] __should_failslab+0xbc/0x10c [ 85.405897][ T5357] should_failslab+0x10/0x28 [ 85.407302][ T5357] slab_pre_alloc_hook+0x64/0xec [ 85.408182][ T5359] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.408768][ T5357] __kmalloc_node+0xb8/0x520 [ 85.408785][ T5357] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.408797][ T5357] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.415216][ T5357] nbd_start_device+0x14c/0xb40 [ 85.416696][ T5357] nbd_ioctl+0x514/0xc50 [ 85.417909][ T5357] blkdev_ioctl+0x5f8/0xbb8 [ 85.419184][ T5357] block_ioctl+0xa4/0x118 [ 85.420457][ T5357] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.421927][ T5357] invoke_syscall+0x98/0x2b8 [ 85.423221][ T5357] el0_svc_common+0x138/0x258 [ 85.424554][ T5357] do_el0_svc+0x58/0x14c [ 85.425723][ T5357] el0_svc+0x78/0x1e0 [ 85.426858][ T5357] el0t_64_sync_handler+0xcc/0xe4 [ 85.428363][ T5357] el0t_64_sync+0x1a0/0x1a4 [ 85.469884][ T5365] FAULT_INJECTION: forcing a failure. [ 85.469884][ T5365] name failslab, interval 1, probability 0, space 0, times 0 [ 85.476244][ T5357] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.477985][ T5365] CPU: 1 PID: 5365 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 85.481056][ T5365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.483901][ T5365] Call trace: [ 85.484808][ T5365] dump_backtrace+0x0/0x43c [ 85.486160][ T5365] show_stack+0x2c/0x3c [ 85.487390][ T5365] __dump_stack+0x30/0x40 [ 85.488663][ T5365] dump_stack_lvl+0xf8/0x160 [ 85.489919][ T5365] dump_stack+0x1c/0x5c [ 85.491147][ T5365] should_fail+0x3c0/0x51c [ 85.492384][ T5365] __should_failslab+0xbc/0x10c [ 85.493844][ T5365] should_failslab+0x10/0x28 [ 85.495158][ T5365] slab_pre_alloc_hook+0x64/0xec [ 85.496518][ T5365] __kmalloc_node+0xb8/0x520 [ 85.497785][ T5365] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.499304][ T5365] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.500981][ T5365] nbd_start_device+0x14c/0xb40 [ 85.502356][ T5365] nbd_ioctl+0x514/0xc50 [ 85.503550][ T5365] blkdev_ioctl+0x5f8/0xbb8 [ 85.504808][ T5365] block_ioctl+0xa4/0x118 [ 85.506121][ T5365] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.507606][ T5365] invoke_syscall+0x98/0x2b8 [ 85.508932][ T5365] el0_svc_common+0x138/0x258 [ 85.510254][ T5365] do_el0_svc+0x58/0x14c [ 85.511471][ T5365] el0_svc+0x78/0x1e0 [ 85.512620][ T5365] el0t_64_sync_handler+0xcc/0xe4 [ 85.514075][ T5365] el0t_64_sync+0x1a0/0x1a4 [ 85.535813][ T5365] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.545454][ T5370] block nbd2: shutting down sockets [ 85.547360][ T5374] block nbd0: shutting down sockets [ 85.571784][ T5367] FAULT_INJECTION: forcing a failure. [ 85.571784][ T5367] name failslab, interval 1, probability 0, space 0, times 0 [ 85.576316][ T5372] block nbd3: shutting down sockets [ 85.585090][ T5369] FAULT_INJECTION: forcing a failure. [ 85.585090][ T5369] name failslab, interval 1, probability 0, space 0, times 0 [ 85.596805][ T5367] CPU: 0 PID: 5367 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 85.599656][ T5367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.602557][ T5367] Call trace: [ 85.603434][ T5367] dump_backtrace+0x0/0x43c [ 85.604705][ T5367] show_stack+0x2c/0x3c [ 85.605870][ T5367] __dump_stack+0x30/0x40 [ 85.607171][ T5367] dump_stack_lvl+0xf8/0x160 [ 85.608482][ T5367] dump_stack+0x1c/0x5c [ 85.609651][ T5367] should_fail+0x3c0/0x51c [ 85.610875][ T5367] __should_failslab+0xbc/0x10c [ 85.612220][ T5367] should_failslab+0x10/0x28 [ 85.613488][ T5367] slab_pre_alloc_hook+0x64/0xec [ 85.614918][ T5367] __kmalloc_node+0xb8/0x520 [ 85.616191][ T5367] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.617777][ T5367] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.619381][ T5367] nbd_start_device+0x14c/0xb40 [ 85.620855][ T5367] nbd_ioctl+0x514/0xc50 [ 85.622094][ T5367] blkdev_ioctl+0x5f8/0xbb8 [ 85.623355][ T5367] block_ioctl+0xa4/0x118 [ 85.624567][ T5367] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.625994][ T5367] invoke_syscall+0x98/0x2b8 [ 85.627271][ T5367] el0_svc_common+0x138/0x258 [ 85.628605][ T5367] do_el0_svc+0x58/0x14c [ 85.629785][ T5367] el0_svc+0x78/0x1e0 [ 85.630898][ T5367] el0t_64_sync_handler+0xcc/0xe4 [ 85.632354][ T5367] el0t_64_sync+0x1a0/0x1a4 [ 85.641584][ T5369] CPU: 1 PID: 5369 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 85.644471][ T5369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.647252][ T5369] Call trace: [ 85.648155][ T5369] dump_backtrace+0x0/0x43c [ 85.649488][ T5369] show_stack+0x2c/0x3c [ 85.650468][ T5367] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.650667][ T5369] __dump_stack+0x30/0x40 [ 85.650686][ T5369] dump_stack_lvl+0xf8/0x160 [ 85.650696][ T5369] dump_stack+0x1c/0x5c [ 85.650705][ T5369] should_fail+0x3c0/0x51c [ 85.657486][ T5369] __should_failslab+0xbc/0x10c [ 85.658851][ T5369] should_failslab+0x10/0x28 [ 85.660133][ T5369] slab_pre_alloc_hook+0x64/0xec [ 85.661474][ T5369] __kmalloc_node+0xb8/0x520 [ 85.662787][ T5369] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.664274][ T5369] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.665849][ T5369] nbd_start_device+0x14c/0xb40 [ 85.667254][ T5369] nbd_ioctl+0x514/0xc50 [ 85.668461][ T5369] blkdev_ioctl+0x5f8/0xbb8 [ 85.669750][ T5369] block_ioctl+0xa4/0x118 [ 85.670917][ T5369] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.672283][ T5369] invoke_syscall+0x98/0x2b8 [ 85.673601][ T5369] el0_svc_common+0x138/0x258 [ 85.674902][ T5369] do_el0_svc+0x58/0x14c [ 85.676112][ T5369] el0_svc+0x78/0x1e0 [ 85.677209][ T5369] el0t_64_sync_handler+0xcc/0xe4 [ 85.678646][ T5369] el0t_64_sync+0x1a0/0x1a4 [ 85.681432][ T5378] block nbd4: shutting down sockets [ 85.690719][ T5372] FAULT_INJECTION: forcing a failure. [ 85.690719][ T5372] name failslab, interval 1, probability 0, space 0, times 0 [ 85.699889][ T5372] CPU: 1 PID: 5372 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 85.702885][ T5372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.705680][ T5372] Call trace: [ 85.706605][ T5372] dump_backtrace+0x0/0x43c [ 85.708131][ T5372] show_stack+0x2c/0x3c [ 85.709262][ T5372] __dump_stack+0x30/0x40 [ 85.710486][ T5372] dump_stack_lvl+0xf8/0x160 [ 85.711818][ T5372] dump_stack+0x1c/0x5c [ 85.712982][ T5372] should_fail+0x3c0/0x51c [ 85.714348][ T5372] __should_failslab+0xbc/0x10c [ 85.715822][ T5372] should_failslab+0x10/0x28 [ 85.717102][ T5372] slab_pre_alloc_hook+0x64/0xec [ 85.718502][ T5372] __kmalloc_node+0xb8/0x520 [ 85.719832][ T5372] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 85.721556][ T5372] nbd_start_device+0x14c/0xb40 [ 85.722972][ T5372] nbd_ioctl+0x514/0xc50 [ 85.724174][ T5372] blkdev_ioctl+0x5f8/0xbb8 [ 85.725461][ T5372] block_ioctl+0xa4/0x118 [ 85.726679][ T5372] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.728052][ T5372] invoke_syscall+0x98/0x2b8 [ 85.729386][ T5372] el0_svc_common+0x138/0x258 [ 85.730687][ T5372] do_el0_svc+0x58/0x14c [ 85.731928][ T5372] el0_svc+0x78/0x1e0 [ 85.733071][ T5372] el0t_64_sync_handler+0xcc/0xe4 [ 85.734570][ T5372] el0t_64_sync+0x1a0/0x1a4 [ 85.736718][ T5369] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.769661][ T5376] FAULT_INJECTION: forcing a failure. [ 85.769661][ T5376] name failslab, interval 1, probability 0, space 0, times 0 [ 85.790225][ T5376] CPU: 1 PID: 5376 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 85.793060][ T5376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.796066][ T5376] Call trace: [ 85.796912][ T5376] dump_backtrace+0x0/0x43c [ 85.797936][ T5379] block nbd1: shutting down sockets [ 85.798169][ T5376] show_stack+0x2c/0x3c [ 85.800886][ T5376] __dump_stack+0x30/0x40 [ 85.802123][ T5376] dump_stack_lvl+0xf8/0x160 [ 85.803447][ T5376] dump_stack+0x1c/0x5c [ 85.804675][ T5376] should_fail+0x3c0/0x51c [ 85.805941][ T5376] __should_failslab+0xbc/0x10c [ 85.807285][ T5376] should_failslab+0x10/0x28 [ 85.808645][ T5376] slab_pre_alloc_hook+0x64/0xec [ 85.810065][ T5376] __kmalloc_node+0xb8/0x520 [ 85.811376][ T5376] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.813043][ T5376] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.814812][ T5376] nbd_start_device+0x14c/0xb40 [ 85.816179][ T5376] nbd_ioctl+0x514/0xc50 [ 85.817408][ T5376] blkdev_ioctl+0x5f8/0xbb8 [ 85.818736][ T5376] block_ioctl+0xa4/0x118 [ 85.819999][ T5376] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.821473][ T5376] invoke_syscall+0x98/0x2b8 [ 85.822749][ T5376] el0_svc_common+0x138/0x258 [ 85.824084][ T5376] do_el0_svc+0x58/0x14c [ 85.825290][ T5376] el0_svc+0x78/0x1e0 [ 85.826479][ T5376] el0t_64_sync_handler+0xcc/0xe4 [ 85.827907][ T5376] el0t_64_sync+0x1a0/0x1a4 [ 85.843104][ T5376] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 85.855953][ T5383] block nbd2: shutting down sockets [ 85.890235][ T5379] FAULT_INJECTION: forcing a failure. [ 85.890235][ T5379] name failslab, interval 1, probability 0, space 0, times 0 [ 85.899717][ T5381] FAULT_INJECTION: forcing a failure. [ 85.899717][ T5381] name failslab, interval 1, probability 0, space 0, times 0 [ 85.903529][ T5381] CPU: 0 PID: 5381 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 85.906622][ T5381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.909557][ T5381] Call trace: [ 85.910493][ T5381] dump_backtrace+0x0/0x43c [ 85.911818][ T5381] show_stack+0x2c/0x3c [ 85.913072][ T5381] __dump_stack+0x30/0x40 [ 85.914280][ T5381] dump_stack_lvl+0xf8/0x160 [ 85.915534][ T5381] dump_stack+0x1c/0x5c [ 85.916712][ T5381] should_fail+0x3c0/0x51c [ 85.917979][ T5381] __should_failslab+0xbc/0x10c [ 85.919366][ T5381] should_failslab+0x10/0x28 [ 85.920623][ T5381] slab_pre_alloc_hook+0x64/0xec [ 85.921994][ T5381] __kmalloc_node+0xb8/0x520 [ 85.923372][ T5381] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 85.925017][ T5381] nbd_start_device+0x14c/0xb40 [ 85.926320][ T5381] nbd_ioctl+0x514/0xc50 [ 85.927583][ T5381] blkdev_ioctl+0x5f8/0xbb8 [ 85.928898][ T5381] block_ioctl+0xa4/0x118 [ 85.930120][ T5381] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.931583][ T5381] invoke_syscall+0x98/0x2b8 [ 85.932890][ T5381] el0_svc_common+0x138/0x258 [ 85.934194][ T5381] do_el0_svc+0x58/0x14c [ 85.935454][ T5381] el0_svc+0x78/0x1e0 [ 85.936617][ T5381] el0t_64_sync_handler+0xcc/0xe4 [ 85.938017][ T5381] el0t_64_sync+0x1a0/0x1a4 [ 85.941474][ T5379] CPU: 1 PID: 5379 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 85.944379][ T5379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 85.947303][ T5379] Call trace: [ 85.948237][ T5379] dump_backtrace+0x0/0x43c [ 85.949518][ T5379] show_stack+0x2c/0x3c [ 85.950702][ T5379] __dump_stack+0x30/0x40 [ 85.951933][ T5379] dump_stack_lvl+0xf8/0x160 [ 85.953244][ T5379] dump_stack+0x1c/0x5c [ 85.954491][ T5379] should_fail+0x3c0/0x51c [ 85.955764][ T5379] __should_failslab+0xbc/0x10c [ 85.957229][ T5379] should_failslab+0x10/0x28 [ 85.958542][ T5379] slab_pre_alloc_hook+0x64/0xec [ 85.959922][ T5379] __kmalloc_node+0xb8/0x520 [ 85.961299][ T5379] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 85.962777][ T5379] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 85.964470][ T5379] nbd_start_device+0x14c/0xb40 [ 85.965841][ T5379] nbd_ioctl+0x514/0xc50 [ 85.967091][ T5379] blkdev_ioctl+0x5f8/0xbb8 [ 85.968423][ T5379] block_ioctl+0xa4/0x118 [ 85.969670][ T5379] __arm64_sys_ioctl+0x14c/0x1c8 [ 85.971159][ T5379] invoke_syscall+0x98/0x2b8 [ 85.972452][ T5379] el0_svc_common+0x138/0x258 [ 85.973751][ T5379] do_el0_svc+0x58/0x14c [ 85.974977][ T5379] el0_svc+0x78/0x1e0 [ 85.976134][ T5379] el0t_64_sync_handler+0xcc/0xe4 [ 85.977575][ T5379] el0t_64_sync+0x1a0/0x1a4 [ 85.977582][ T5388] block nbd0: shutting down sockets [ 85.985520][ T5379] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.029319][ T5384] FAULT_INJECTION: forcing a failure. [ 86.029319][ T5384] name failslab, interval 1, probability 0, space 0, times 0 [ 86.032033][ T5392] block nbd4: shutting down sockets [ 86.034982][ T5391] block nbd3: shutting down sockets [ 86.043133][ T5384] CPU: 0 PID: 5384 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 86.045920][ T5384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.048745][ T5384] Call trace: [ 86.049606][ T5384] dump_backtrace+0x0/0x43c [ 86.050853][ T5384] show_stack+0x2c/0x3c [ 86.052019][ T5384] __dump_stack+0x30/0x40 [ 86.053179][ T5384] dump_stack_lvl+0xf8/0x160 [ 86.054542][ T5384] dump_stack+0x1c/0x5c [ 86.055691][ T5384] should_fail+0x3c0/0x51c [ 86.056953][ T5384] __should_failslab+0xbc/0x10c [ 86.058464][ T5384] should_failslab+0x10/0x28 [ 86.059830][ T5384] slab_pre_alloc_hook+0x64/0xec [ 86.061242][ T5384] __kmalloc_node+0xb8/0x520 [ 86.062566][ T5384] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 86.064211][ T5384] nbd_start_device+0x14c/0xb40 [ 86.065631][ T5384] nbd_ioctl+0x514/0xc50 [ 86.066837][ T5384] blkdev_ioctl+0x5f8/0xbb8 [ 86.068211][ T5384] block_ioctl+0xa4/0x118 [ 86.069486][ T5384] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.070959][ T5384] invoke_syscall+0x98/0x2b8 [ 86.072249][ T5384] el0_svc_common+0x138/0x258 [ 86.073589][ T5384] do_el0_svc+0x58/0x14c [ 86.074829][ T5384] el0_svc+0x78/0x1e0 [ 86.075991][ T5384] el0t_64_sync_handler+0xcc/0xe4 [ 86.077394][ T5384] el0t_64_sync+0x1a0/0x1a4 [ 86.099741][ T5394] block nbd2: shutting down sockets [ 86.101798][ T5395] FAULT_INJECTION: forcing a failure. [ 86.101798][ T5395] name failslab, interval 1, probability 0, space 0, times 0 [ 86.137557][ T5387] FAULT_INJECTION: forcing a failure. [ 86.137557][ T5387] name failslab, interval 1, probability 0, space 0, times 0 [ 86.142006][ T5387] CPU: 1 PID: 5387 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 86.144920][ T5387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.147819][ T5387] Call trace: [ 86.148794][ T5387] dump_backtrace+0x0/0x43c [ 86.150051][ T5387] show_stack+0x2c/0x3c [ 86.151308][ T5387] __dump_stack+0x30/0x40 [ 86.152535][ T5387] dump_stack_lvl+0xf8/0x160 [ 86.153886][ T5387] dump_stack+0x1c/0x5c [ 86.155066][ T5387] should_fail+0x3c0/0x51c [ 86.156307][ T5387] __should_failslab+0xbc/0x10c [ 86.157669][ T5387] should_failslab+0x10/0x28 [ 86.159021][ T5387] slab_pre_alloc_hook+0x64/0xec [ 86.160397][ T5387] __kmalloc_node+0xb8/0x520 [ 86.161703][ T5387] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.163295][ T5387] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.164901][ T5387] nbd_start_device+0x14c/0xb40 [ 86.166242][ T5387] nbd_ioctl+0x514/0xc50 [ 86.167444][ T5387] blkdev_ioctl+0x5f8/0xbb8 [ 86.168822][ T5387] block_ioctl+0xa4/0x118 [ 86.170151][ T5387] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.171580][ T5387] invoke_syscall+0x98/0x2b8 [ 86.172830][ T5387] el0_svc_common+0x138/0x258 [ 86.174138][ T5387] do_el0_svc+0x58/0x14c [ 86.175370][ T5387] el0_svc+0x78/0x1e0 [ 86.176509][ T5387] el0t_64_sync_handler+0xcc/0xe4 [ 86.177989][ T5387] el0t_64_sync+0x1a0/0x1a4 [ 86.179275][ T5395] CPU: 0 PID: 5395 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 86.182233][ T5395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.185315][ T5395] Call trace: [ 86.186397][ T5395] dump_backtrace+0x0/0x43c [ 86.187808][ T5395] show_stack+0x2c/0x3c [ 86.189010][ T5395] __dump_stack+0x30/0x40 [ 86.190270][ T5395] dump_stack_lvl+0xf8/0x160 [ 86.191641][ T5395] dump_stack+0x1c/0x5c [ 86.192919][ T5395] should_fail+0x3c0/0x51c [ 86.194202][ T5395] __should_failslab+0xbc/0x10c [ 86.195737][ T5395] should_failslab+0x10/0x28 [ 86.196992][ T5395] slab_pre_alloc_hook+0x64/0xec [ 86.198410][ T5395] __kmalloc_node+0xb8/0x520 [ 86.199784][ T5395] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 86.201415][ T5395] nbd_start_device+0x14c/0xb40 [ 86.202828][ T5395] nbd_ioctl+0x514/0xc50 [ 86.204078][ T5395] blkdev_ioctl+0x5f8/0xbb8 [ 86.205425][ T5395] block_ioctl+0xa4/0x118 [ 86.206693][ T5395] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.208103][ T5395] invoke_syscall+0x98/0x2b8 [ 86.209431][ T5395] el0_svc_common+0x138/0x258 [ 86.210834][ T5395] do_el0_svc+0x58/0x14c [ 86.212064][ T5395] el0_svc+0x78/0x1e0 [ 86.213361][ T5395] el0t_64_sync_handler+0xcc/0xe4 [ 86.214838][ T5395] el0t_64_sync+0x1a0/0x1a4 [ 86.233316][ T5387] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.241137][ T5394] FAULT_INJECTION: forcing a failure. [ 86.241137][ T5394] name failslab, interval 1, probability 0, space 0, times 0 [ 86.265735][ T5394] CPU: 0 PID: 5394 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 86.268653][ T5394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.271645][ T5394] Call trace: [ 86.272582][ T5394] dump_backtrace+0x0/0x43c [ 86.273925][ T5394] show_stack+0x2c/0x3c [ 86.275155][ T5394] __dump_stack+0x30/0x40 [ 86.276444][ T5394] dump_stack_lvl+0xf8/0x160 [ 86.277829][ T5394] dump_stack+0x1c/0x5c [ 86.279084][ T5394] should_fail+0x3c0/0x51c [ 86.280352][ T5394] __should_failslab+0xbc/0x10c [ 86.281745][ T5394] should_failslab+0x10/0x28 [ 86.283019][ T5394] slab_pre_alloc_hook+0x64/0xec [ 86.284430][ T5394] __kmalloc_node+0xb8/0x520 [ 86.285759][ T5394] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.287298][ T5394] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.289012][ T5394] nbd_start_device+0x14c/0xb40 [ 86.290422][ T5394] nbd_ioctl+0x514/0xc50 [ 86.291674][ T5394] blkdev_ioctl+0x5f8/0xbb8 [ 86.292992][ T5394] block_ioctl+0xa4/0x118 [ 86.294238][ T5394] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.295741][ T5394] invoke_syscall+0x98/0x2b8 [ 86.297122][ T5394] el0_svc_common+0x138/0x258 [ 86.298418][ T5394] do_el0_svc+0x58/0x14c [ 86.299695][ T5394] el0_svc+0x78/0x1e0 [ 86.300839][ T5394] el0t_64_sync_handler+0xcc/0xe4 [ 86.302239][ T5394] el0t_64_sync+0x1a0/0x1a4 [ 86.304652][ T5394] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.325588][ T5401] block nbd1: shutting down sockets [ 86.336653][ T5403] block nbd0: shutting down sockets [ 86.359321][ T5398] FAULT_INJECTION: forcing a failure. [ 86.359321][ T5398] name failslab, interval 1, probability 0, space 0, times 0 [ 86.381449][ T5400] FAULT_INJECTION: forcing a failure. [ 86.381449][ T5400] name failslab, interval 1, probability 0, space 0, times 0 [ 86.385313][ T5398] CPU: 0 PID: 5398 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 86.385331][ T5398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.385347][ T5398] Call trace: [ 86.385350][ T5398] dump_backtrace+0x0/0x43c [ 86.385364][ T5398] show_stack+0x2c/0x3c [ 86.385372][ T5398] __dump_stack+0x30/0x40 [ 86.385384][ T5398] dump_stack_lvl+0xf8/0x160 [ 86.385394][ T5398] dump_stack+0x1c/0x5c [ 86.385404][ T5398] should_fail+0x3c0/0x51c [ 86.399354][ T5398] __should_failslab+0xbc/0x10c [ 86.400887][ T5398] should_failslab+0x10/0x28 [ 86.402172][ T5398] slab_pre_alloc_hook+0x64/0xec [ 86.403630][ T5398] __kmalloc_node+0xb8/0x520 [ 86.404964][ T5398] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.406618][ T5398] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.408283][ T5398] nbd_start_device+0x14c/0xb40 [ 86.409713][ T5398] nbd_ioctl+0x514/0xc50 [ 86.410931][ T5398] blkdev_ioctl+0x5f8/0xbb8 [ 86.412240][ T5398] block_ioctl+0xa4/0x118 [ 86.413580][ T5398] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.415002][ T5398] invoke_syscall+0x98/0x2b8 [ 86.416363][ T5398] el0_svc_common+0x138/0x258 [ 86.417728][ T5398] do_el0_svc+0x58/0x14c [ 86.418867][ T5398] el0_svc+0x78/0x1e0 [ 86.420021][ T5398] el0t_64_sync_handler+0xcc/0xe4 [ 86.421469][ T5398] el0t_64_sync+0x1a0/0x1a4 [ 86.423038][ T5400] CPU: 0 PID: 5400 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 86.425789][ T5400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.428629][ T5400] Call trace: [ 86.429556][ T5400] dump_backtrace+0x0/0x43c [ 86.430838][ T5400] show_stack+0x2c/0x3c [ 86.431967][ T5400] __dump_stack+0x30/0x40 [ 86.433167][ T5400] dump_stack_lvl+0xf8/0x160 [ 86.434581][ T5400] dump_stack+0x1c/0x5c [ 86.435707][ T5400] should_fail+0x3c0/0x51c [ 86.437055][ T5400] __should_failslab+0xbc/0x10c [ 86.438441][ T5400] should_failslab+0x10/0x28 [ 86.439789][ T5400] slab_pre_alloc_hook+0x64/0xec [ 86.441213][ T5400] __kmalloc_node+0xb8/0x520 [ 86.442509][ T5400] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 86.444086][ T5400] nbd_start_device+0x14c/0xb40 [ 86.445470][ T5400] nbd_ioctl+0x514/0xc50 [ 86.446694][ T5400] blkdev_ioctl+0x5f8/0xbb8 [ 86.447967][ T5400] block_ioctl+0xa4/0x118 [ 86.449259][ T5400] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.450740][ T5400] invoke_syscall+0x98/0x2b8 [ 86.452105][ T5400] el0_svc_common+0x138/0x258 [ 86.453527][ T5400] do_el0_svc+0x58/0x14c [ 86.454738][ T5400] el0_svc+0x78/0x1e0 [ 86.455888][ T5400] el0t_64_sync_handler+0xcc/0xe4 [ 86.457432][ T5400] el0t_64_sync+0x1a0/0x1a4 [ 86.471171][ T5398] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.495927][ T5406] block nbd4: shutting down sockets [ 86.496077][ T5404] block nbd3: shutting down sockets [ 86.499704][ T5408] block nbd2: shutting down sockets [ 86.549369][ T5408] FAULT_INJECTION: forcing a failure. [ 86.549369][ T5408] name failslab, interval 1, probability 0, space 0, times 0 [ 86.552908][ T5408] CPU: 1 PID: 5408 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 86.555701][ T5408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.558603][ T5408] Call trace: [ 86.559499][ T5408] dump_backtrace+0x0/0x43c [ 86.560784][ T5408] show_stack+0x2c/0x3c [ 86.561978][ T5408] __dump_stack+0x30/0x40 [ 86.563219][ T5408] dump_stack_lvl+0xf8/0x160 [ 86.564508][ T5408] dump_stack+0x1c/0x5c [ 86.565707][ T5408] should_fail+0x3c0/0x51c [ 86.566947][ T5408] __should_failslab+0xbc/0x10c [ 86.568293][ T5408] should_failslab+0x10/0x28 [ 86.569613][ T5408] slab_pre_alloc_hook+0x64/0xec [ 86.571022][ T5408] __kmalloc_node+0xb8/0x520 [ 86.572346][ T5408] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.573873][ T5408] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.575470][ T5408] nbd_start_device+0x14c/0xb40 [ 86.576823][ T5408] nbd_ioctl+0x514/0xc50 [ 86.578046][ T5408] blkdev_ioctl+0x5f8/0xbb8 [ 86.579367][ T5408] block_ioctl+0xa4/0x118 [ 86.580581][ T5408] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.582036][ T5408] invoke_syscall+0x98/0x2b8 [ 86.583354][ T5408] el0_svc_common+0x138/0x258 [ 86.584682][ T5408] do_el0_svc+0x58/0x14c [ 86.585916][ T5408] el0_svc+0x78/0x1e0 [ 86.587039][ T5408] el0t_64_sync_handler+0xcc/0xe4 [ 86.588457][ T5408] el0t_64_sync+0x1a0/0x1a4 [ 86.589165][ T5404] FAULT_INJECTION: forcing a failure. [ 86.589165][ T5404] name failslab, interval 1, probability 0, space 0, times 0 [ 86.593767][ T5404] CPU: 0 PID: 5404 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 86.595536][ T5408] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.596572][ T5404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.596585][ T5404] Call trace: [ 86.596588][ T5404] dump_backtrace+0x0/0x43c [ 86.596603][ T5404] show_stack+0x2c/0x3c [ 86.596611][ T5404] __dump_stack+0x30/0x40 [ 86.605893][ T5404] dump_stack_lvl+0xf8/0x160 [ 86.607215][ T5404] dump_stack+0x1c/0x5c [ 86.608354][ T5404] should_fail+0x3c0/0x51c [ 86.609665][ T5404] __should_failslab+0xbc/0x10c [ 86.611057][ T5404] should_failslab+0x10/0x28 [ 86.612288][ T5404] slab_pre_alloc_hook+0x64/0xec [ 86.613763][ T5404] __kmalloc_node+0xb8/0x520 [ 86.615011][ T5404] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.616489][ T5404] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.618075][ T5404] nbd_start_device+0x14c/0xb40 [ 86.619453][ T5404] nbd_ioctl+0x514/0xc50 [ 86.620614][ T5404] blkdev_ioctl+0x5f8/0xbb8 [ 86.621881][ T5404] block_ioctl+0xa4/0x118 [ 86.623083][ T5404] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.624485][ T5404] invoke_syscall+0x98/0x2b8 [ 86.625702][ T5404] el0_svc_common+0x138/0x258 [ 86.627033][ T5404] do_el0_svc+0x58/0x14c [ 86.628255][ T5404] el0_svc+0x78/0x1e0 [ 86.629403][ T5404] el0t_64_sync_handler+0xcc/0xe4 [ 86.630781][ T5404] el0t_64_sync+0x1a0/0x1a4 [ 86.647168][ T5406] FAULT_INJECTION: forcing a failure. [ 86.647168][ T5406] name failslab, interval 1, probability 0, space 0, times 0 [ 86.651640][ T5404] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.653790][ T5406] CPU: 0 PID: 5406 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 86.656702][ T5406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.659796][ T5406] Call trace: [ 86.660731][ T5406] dump_backtrace+0x0/0x43c [ 86.662019][ T5406] show_stack+0x2c/0x3c [ 86.663284][ T5406] __dump_stack+0x30/0x40 [ 86.665037][ T5406] dump_stack_lvl+0xf8/0x160 [ 86.666366][ T5406] dump_stack+0x1c/0x5c [ 86.667669][ T5406] should_fail+0x3c0/0x51c [ 86.669003][ T5406] __should_failslab+0xbc/0x10c [ 86.670430][ T5406] should_failslab+0x10/0x28 [ 86.671872][ T5406] slab_pre_alloc_hook+0x64/0xec [ 86.673270][ T5406] __kmalloc_node+0xb8/0x520 [ 86.674524][ T5406] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.676066][ T5406] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.677721][ T5406] nbd_start_device+0x14c/0xb40 [ 86.679137][ T5406] nbd_ioctl+0x514/0xc50 [ 86.680423][ T5406] blkdev_ioctl+0x5f8/0xbb8 [ 86.681767][ T5406] block_ioctl+0xa4/0x118 [ 86.683032][ T5406] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.684465][ T5406] invoke_syscall+0x98/0x2b8 [ 86.685773][ T5406] el0_svc_common+0x138/0x258 [ 86.687169][ T5406] do_el0_svc+0x58/0x14c [ 86.688481][ T5406] el0_svc+0x78/0x1e0 [ 86.689713][ T5406] el0t_64_sync_handler+0xcc/0xe4 [ 86.691178][ T5406] el0t_64_sync+0x1a0/0x1a4 [ 86.710266][ T5420] block nbd1: shutting down sockets [ 86.716874][ T5406] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.725471][ T5421] block nbd0: Device being setup by another task [ 86.727839][ T5415] block nbd0: shutting down sockets [ 86.736201][ T5415] FAULT_INJECTION: forcing a failure. [ 86.736201][ T5415] name failslab, interval 1, probability 0, space 0, times 0 [ 86.739676][ T5415] CPU: 0 PID: 5415 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 86.742639][ T5415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.745595][ T5415] Call trace: [ 86.746513][ T5415] dump_backtrace+0x0/0x43c [ 86.747801][ T5415] show_stack+0x2c/0x3c [ 86.748898][ T5415] __dump_stack+0x30/0x40 [ 86.750058][ T5413] FAULT_INJECTION: forcing a failure. [ 86.750058][ T5413] name failslab, interval 1, probability 0, space 0, times 0 [ 86.750069][ T5415] dump_stack_lvl+0xf8/0x160 [ 86.750086][ T5415] dump_stack+0x1c/0x5c [ 86.756266][ T5415] should_fail+0x3c0/0x51c [ 86.757530][ T5415] __should_failslab+0xbc/0x10c [ 86.759049][ T5415] should_failslab+0x10/0x28 [ 86.760398][ T5415] slab_pre_alloc_hook+0x64/0xec [ 86.761804][ T5415] kmem_cache_alloc+0x94/0x3e4 [ 86.763202][ T5415] __d_alloc+0x3c/0x65c [ 86.764536][ T5415] d_alloc_parallel+0x80/0x1104 [ 86.765969][ T5415] __lookup_slow+0x104/0x380 [ 86.767261][ T5415] lookup_one_len+0x178/0x28c [ 86.768620][ T5415] start_creating+0x19c/0x2e0 [ 86.769962][ T5415] debugfs_create_dir+0x30/0x3f4 [ 86.771449][ T5415] nbd_start_device+0x3c8/0xb40 [ 86.772919][ T5415] nbd_ioctl+0x514/0xc50 [ 86.774185][ T5415] blkdev_ioctl+0x5f8/0xbb8 [ 86.775531][ T5415] block_ioctl+0xa4/0x118 [ 86.776888][ T5415] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.778345][ T5415] invoke_syscall+0x98/0x2b8 [ 86.779719][ T5415] el0_svc_common+0x138/0x258 [ 86.781221][ T5415] do_el0_svc+0x58/0x14c [ 86.782626][ T5415] el0_svc+0x78/0x1e0 [ 86.783863][ T5415] el0t_64_sync_handler+0xcc/0xe4 [ 86.785235][ T5415] el0t_64_sync+0x1a0/0x1a4 [ 86.786533][ T5413] CPU: 1 PID: 5413 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 86.789553][ T5413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.792522][ T5413] Call trace: [ 86.793466][ T5413] dump_backtrace+0x0/0x43c [ 86.794787][ T5413] show_stack+0x2c/0x3c [ 86.796002][ T5413] __dump_stack+0x30/0x40 [ 86.797210][ T5413] dump_stack_lvl+0xf8/0x160 [ 86.798477][ T5413] dump_stack+0x1c/0x5c [ 86.799638][ T5413] should_fail+0x3c0/0x51c [ 86.800986][ T5413] __should_failslab+0xbc/0x10c [ 86.802267][ T5413] should_failslab+0x10/0x28 [ 86.803631][ T5413] slab_pre_alloc_hook+0x64/0xec [ 86.804060][ T5415] block nbd0: Failed to create debugfs dir for 'nbd0' [ 86.805024][ T5413] __kmalloc_node+0xb8/0x520 [ 86.808272][ T5413] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.809740][ T5413] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.811271][ T5413] nbd_start_device+0x14c/0xb40 [ 86.812620][ T5413] nbd_ioctl+0x514/0xc50 [ 86.813792][ T5413] blkdev_ioctl+0x5f8/0xbb8 [ 86.815001][ T5413] block_ioctl+0xa4/0x118 [ 86.816180][ T5413] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.817513][ T5413] invoke_syscall+0x98/0x2b8 [ 86.818762][ T5413] el0_svc_common+0x138/0x258 [ 86.820035][ T5413] do_el0_svc+0x58/0x14c [ 86.821190][ T5413] el0_svc+0x78/0x1e0 [ 86.822426][ T5413] el0t_64_sync_handler+0xcc/0xe4 [ 86.823958][ T5413] el0t_64_sync+0x1a0/0x1a4 [ 86.835643][ T5413] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.858850][ T5424] block nbd2: shutting down sockets [ 86.899495][ T5419] FAULT_INJECTION: forcing a failure. [ 86.899495][ T5419] name failslab, interval 1, probability 0, space 0, times 0 [ 86.903045][ T5419] CPU: 1 PID: 5419 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 86.905790][ T5419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 86.908487][ T5419] Call trace: [ 86.909421][ T5419] dump_backtrace+0x0/0x43c [ 86.910724][ T5419] show_stack+0x2c/0x3c [ 86.911965][ T5419] __dump_stack+0x30/0x40 [ 86.913236][ T5419] dump_stack_lvl+0xf8/0x160 [ 86.914672][ T5419] dump_stack+0x1c/0x5c [ 86.915949][ T5419] should_fail+0x3c0/0x51c [ 86.917331][ T5419] __should_failslab+0xbc/0x10c [ 86.918815][ T5419] should_failslab+0x10/0x28 [ 86.920104][ T5419] slab_pre_alloc_hook+0x64/0xec [ 86.921567][ T5419] __kmalloc_node+0xb8/0x520 [ 86.922875][ T5419] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 86.924576][ T5419] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 86.926207][ T5419] nbd_start_device+0x14c/0xb40 [ 86.927615][ T5419] nbd_ioctl+0x514/0xc50 [ 86.928832][ T5419] blkdev_ioctl+0x5f8/0xbb8 [ 86.930139][ T5419] block_ioctl+0xa4/0x118 [ 86.931512][ T5419] __arm64_sys_ioctl+0x14c/0x1c8 [ 86.932987][ T5419] invoke_syscall+0x98/0x2b8 [ 86.934305][ T5419] el0_svc_common+0x138/0x258 [ 86.935676][ T5419] do_el0_svc+0x58/0x14c [ 86.936836][ T5419] el0_svc+0x78/0x1e0 [ 86.937963][ T5419] el0t_64_sync_handler+0xcc/0xe4 [ 86.939371][ T5419] el0t_64_sync+0x1a0/0x1a4 [ 86.956170][ T5419] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 86.957395][ T5429] block nbd3: shutting down sockets [ 86.985738][ T5431] block nbd4: shutting down sockets [ 86.988791][ T5428] block nbd0: shutting down sockets [ 87.019700][ T5423] FAULT_INJECTION: forcing a failure. [ 87.019700][ T5423] name failslab, interval 1, probability 0, space 0, times 0 [ 87.023217][ T5423] CPU: 0 PID: 5423 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 87.025992][ T5423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.028802][ T5423] Call trace: [ 87.029720][ T5423] dump_backtrace+0x0/0x43c [ 87.030956][ T5423] show_stack+0x2c/0x3c [ 87.032114][ T5423] __dump_stack+0x30/0x40 [ 87.033343][ T5423] dump_stack_lvl+0xf8/0x160 [ 87.034663][ T5423] dump_stack+0x1c/0x5c [ 87.035975][ T5423] should_fail+0x3c0/0x51c [ 87.037254][ T5423] __should_failslab+0xbc/0x10c [ 87.038610][ T5423] should_failslab+0x10/0x28 [ 87.039936][ T5423] slab_pre_alloc_hook+0x64/0xec [ 87.041316][ T5423] __kmalloc_node+0xb8/0x520 [ 87.042607][ T5423] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.044228][ T5423] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.045914][ T5423] nbd_start_device+0x14c/0xb40 [ 87.047387][ T5423] nbd_ioctl+0x514/0xc50 [ 87.048649][ T5423] blkdev_ioctl+0x5f8/0xbb8 [ 87.049896][ T5423] block_ioctl+0xa4/0x118 [ 87.051210][ T5423] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.052620][ T5423] invoke_syscall+0x98/0x2b8 [ 87.053897][ T5423] el0_svc_common+0x138/0x258 [ 87.055194][ T5423] do_el0_svc+0x58/0x14c [ 87.056416][ T5423] el0_svc+0x78/0x1e0 [ 87.057621][ T5423] el0t_64_sync_handler+0xcc/0xe4 [ 87.059092][ T5423] el0t_64_sync+0x1a0/0x1a4 [ 87.069327][ T5426] FAULT_INJECTION: forcing a failure. [ 87.069327][ T5426] name failslab, interval 1, probability 0, space 0, times 0 [ 87.071786][ T5428] FAULT_INJECTION: forcing a failure. [ 87.071786][ T5428] name failslab, interval 1, probability 0, space 0, times 0 [ 87.073145][ T5426] CPU: 0 PID: 5426 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 87.073161][ T5426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.073170][ T5426] Call trace: [ 87.073173][ T5426] dump_backtrace+0x0/0x43c [ 87.084602][ T5426] show_stack+0x2c/0x3c [ 87.085842][ T5426] __dump_stack+0x30/0x40 [ 87.087101][ T5426] dump_stack_lvl+0xf8/0x160 [ 87.088513][ T5426] dump_stack+0x1c/0x5c [ 87.089743][ T5426] should_fail+0x3c0/0x51c [ 87.090988][ T5426] __should_failslab+0xbc/0x10c [ 87.092470][ T5426] should_failslab+0x10/0x28 [ 87.093798][ T5426] slab_pre_alloc_hook+0x64/0xec [ 87.095317][ T5426] __kmalloc_node+0xb8/0x520 [ 87.096633][ T5426] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.098508][ T5426] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.100307][ T5426] nbd_start_device+0x14c/0xb40 [ 87.101827][ T5426] nbd_ioctl+0x514/0xc50 [ 87.103048][ T5426] blkdev_ioctl+0x5f8/0xbb8 [ 87.104346][ T5426] block_ioctl+0xa4/0x118 [ 87.105540][ T5426] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.106902][ T5426] invoke_syscall+0x98/0x2b8 [ 87.108119][ T5426] el0_svc_common+0x138/0x258 [ 87.109618][ T5426] do_el0_svc+0x58/0x14c [ 87.110906][ T5426] el0_svc+0x78/0x1e0 [ 87.111981][ T5426] el0t_64_sync_handler+0xcc/0xe4 [ 87.113404][ T5426] el0t_64_sync+0x1a0/0x1a4 [ 87.127256][ T5428] CPU: 1 PID: 5428 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 87.130094][ T5428] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.132962][ T5428] Call trace: [ 87.133925][ T5428] dump_backtrace+0x0/0x43c [ 87.135208][ T5428] show_stack+0x2c/0x3c [ 87.136568][ T5428] __dump_stack+0x30/0x40 [ 87.137861][ T5428] dump_stack_lvl+0xf8/0x160 [ 87.139170][ T5428] dump_stack+0x1c/0x5c [ 87.140350][ T5428] should_fail+0x3c0/0x51c [ 87.141592][ T5428] __should_failslab+0xbc/0x10c [ 87.142994][ T5428] should_failslab+0x10/0x28 [ 87.144298][ T5428] slab_pre_alloc_hook+0x64/0xec [ 87.145829][ T5428] __kmalloc_node+0xb8/0x520 [ 87.147211][ T5428] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.148803][ T5428] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.150444][ T5428] nbd_start_device+0x14c/0xb40 [ 87.151822][ T5428] nbd_ioctl+0x514/0xc50 [ 87.153026][ T5428] blkdev_ioctl+0x5f8/0xbb8 [ 87.154303][ T5428] block_ioctl+0xa4/0x118 [ 87.155515][ T5428] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.156944][ T5428] invoke_syscall+0x98/0x2b8 [ 87.158221][ T5428] el0_svc_common+0x138/0x258 [ 87.159535][ T5428] do_el0_svc+0x58/0x14c [ 87.160772][ T5428] el0_svc+0x78/0x1e0 [ 87.161890][ T5428] el0t_64_sync_handler+0xcc/0xe4 [ 87.163273][ T5428] el0t_64_sync+0x1a0/0x1a4 [ 87.177466][ T5428] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.193944][ T5423] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.203145][ T5426] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.205624][ T5437] block nbd2: Device being setup by another task [ 87.208106][ T5434] block nbd2: shutting down sockets [ 87.216330][ T5434] FAULT_INJECTION: forcing a failure. [ 87.216330][ T5434] name failslab, interval 1, probability 0, space 0, times 0 [ 87.222882][ T5434] CPU: 1 PID: 5434 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 87.225772][ T5434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.228567][ T5434] Call trace: [ 87.229576][ T5434] dump_backtrace+0x0/0x43c [ 87.230886][ T5434] show_stack+0x2c/0x3c [ 87.232112][ T5434] __dump_stack+0x30/0x40 [ 87.233436][ T5434] dump_stack_lvl+0xf8/0x160 [ 87.234817][ T5434] dump_stack+0x1c/0x5c [ 87.236009][ T5434] should_fail+0x3c0/0x51c [ 87.237384][ T5434] __should_failslab+0xbc/0x10c [ 87.238877][ T5434] should_failslab+0x10/0x28 [ 87.240203][ T5434] slab_pre_alloc_hook+0x64/0xec [ 87.241700][ T5434] kmem_cache_alloc+0x94/0x3e4 [ 87.243058][ T5434] new_inode_pseudo+0x10c/0x1fc [ 87.244503][ T5434] new_inode+0x38/0x174 [ 87.245683][ T5434] debugfs_create_dir+0xec/0x3f4 [ 87.247065][ T5434] nbd_start_device+0x3c8/0xb40 [ 87.248438][ T5434] nbd_ioctl+0x514/0xc50 [ 87.249765][ T5434] blkdev_ioctl+0x5f8/0xbb8 [ 87.250949][ T5434] block_ioctl+0xa4/0x118 [ 87.252199][ T5434] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.253661][ T5434] invoke_syscall+0x98/0x2b8 [ 87.254977][ T5434] el0_svc_common+0x138/0x258 [ 87.256303][ T5434] do_el0_svc+0x58/0x14c [ 87.257501][ T5434] el0_svc+0x78/0x1e0 [ 87.258707][ T5434] el0t_64_sync_handler+0xcc/0xe4 [ 87.260140][ T5434] el0t_64_sync+0x1a0/0x1a4 [ 87.285413][ T5439] block nbd1: shutting down sockets [ 87.302080][ T5434] debugfs: out of free dentries, can not create directory 'nbd2' [ 87.311841][ T5434] block nbd2: Failed to create debugfs dir for 'nbd2' [ 87.345694][ T5436] FAULT_INJECTION: forcing a failure. [ 87.345694][ T5436] name failslab, interval 1, probability 0, space 0, times 0 [ 87.380269][ T5441] block nbd0: shutting down sockets [ 87.383157][ T5436] CPU: 0 PID: 5436 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 87.386086][ T5436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.388948][ T5436] Call trace: [ 87.389827][ T5436] dump_backtrace+0x0/0x43c [ 87.391125][ T5436] show_stack+0x2c/0x3c [ 87.392259][ T5436] __dump_stack+0x30/0x40 [ 87.393580][ T5436] dump_stack_lvl+0xf8/0x160 [ 87.394846][ T5436] dump_stack+0x1c/0x5c [ 87.396007][ T5436] should_fail+0x3c0/0x51c [ 87.397222][ T5436] __should_failslab+0xbc/0x10c [ 87.398678][ T5436] should_failslab+0x10/0x28 [ 87.400024][ T5436] slab_pre_alloc_hook+0x64/0xec [ 87.401642][ T5436] __kmalloc_node+0xb8/0x520 [ 87.402920][ T5436] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.404519][ T5436] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.406076][ T5436] nbd_start_device+0x14c/0xb40 [ 87.407465][ T5436] nbd_ioctl+0x514/0xc50 [ 87.408637][ T5436] blkdev_ioctl+0x5f8/0xbb8 [ 87.409877][ T5436] block_ioctl+0xa4/0x118 [ 87.411021][ T5436] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.412478][ T5436] invoke_syscall+0x98/0x2b8 [ 87.413834][ T5436] el0_svc_common+0x138/0x258 [ 87.415261][ T5436] do_el0_svc+0x58/0x14c [ 87.416464][ T5436] el0_svc+0x78/0x1e0 [ 87.417504][ T5436] el0t_64_sync_handler+0xcc/0xe4 [ 87.418937][ T5436] el0t_64_sync+0x1a0/0x1a4 [ 87.435094][ T5436] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.466264][ T5441] FAULT_INJECTION: forcing a failure. [ 87.466264][ T5441] name failslab, interval 1, probability 0, space 0, times 0 [ 87.477398][ T5444] block nbd4: shutting down sockets [ 87.484611][ T5441] CPU: 0 PID: 5441 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 87.487649][ T5441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.490654][ T5441] Call trace: [ 87.491655][ T5441] dump_backtrace+0x0/0x43c [ 87.492944][ T5441] show_stack+0x2c/0x3c [ 87.494153][ T5441] __dump_stack+0x30/0x40 [ 87.495502][ T5441] dump_stack_lvl+0xf8/0x160 [ 87.496943][ T5441] dump_stack+0x1c/0x5c [ 87.498138][ T5441] should_fail+0x3c0/0x51c [ 87.499453][ T5441] __should_failslab+0xbc/0x10c [ 87.500816][ T5441] should_failslab+0x10/0x28 [ 87.502226][ T5441] slab_pre_alloc_hook+0x64/0xec [ 87.503626][ T5441] __kmalloc_node+0xb8/0x520 [ 87.504910][ T5441] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.506409][ T5441] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.508044][ T5441] nbd_start_device+0x14c/0xb40 [ 87.509534][ T5441] nbd_ioctl+0x514/0xc50 [ 87.510854][ T5441] blkdev_ioctl+0x5f8/0xbb8 [ 87.512218][ T5441] block_ioctl+0xa4/0x118 [ 87.513420][ T5441] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.514851][ T5441] invoke_syscall+0x98/0x2b8 [ 87.516122][ T5441] el0_svc_common+0x138/0x258 [ 87.517476][ T5441] do_el0_svc+0x58/0x14c [ 87.518674][ T5441] el0_svc+0x78/0x1e0 [ 87.519796][ T5441] el0t_64_sync_handler+0xcc/0xe4 [ 87.521354][ T5441] el0t_64_sync+0x1a0/0x1a4 [ 87.524128][ T5441] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.529745][ T5449] block nbd2: shutting down sockets [ 87.531927][ T5448] block nbd3: shutting down sockets [ 87.544313][ T5444] FAULT_INJECTION: forcing a failure. [ 87.544313][ T5444] name failslab, interval 1, probability 0, space 0, times 0 [ 87.558330][ T5444] CPU: 1 PID: 5444 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 87.561247][ T5444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.564112][ T5444] Call trace: [ 87.565074][ T5444] dump_backtrace+0x0/0x43c [ 87.566399][ T5444] show_stack+0x2c/0x3c [ 87.567668][ T5444] __dump_stack+0x30/0x40 [ 87.568855][ T5444] dump_stack_lvl+0xf8/0x160 [ 87.570191][ T5444] dump_stack+0x1c/0x5c [ 87.571421][ T5444] should_fail+0x3c0/0x51c [ 87.572709][ T5444] __should_failslab+0xbc/0x10c [ 87.574142][ T5444] should_failslab+0x10/0x28 [ 87.575507][ T5444] slab_pre_alloc_hook+0x64/0xec [ 87.576901][ T5444] __kmalloc_node+0xb8/0x520 [ 87.578243][ T5444] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.579852][ T5444] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.581575][ T5444] nbd_start_device+0x14c/0xb40 [ 87.582905][ T5444] nbd_ioctl+0x514/0xc50 [ 87.584101][ T5444] blkdev_ioctl+0x5f8/0xbb8 [ 87.585373][ T5444] block_ioctl+0xa4/0x118 [ 87.586602][ T5444] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.587968][ T5444] invoke_syscall+0x98/0x2b8 [ 87.589266][ T5444] el0_svc_common+0x138/0x258 [ 87.590603][ T5444] do_el0_svc+0x58/0x14c [ 87.591793][ T5444] el0_svc+0x78/0x1e0 [ 87.592951][ T5444] el0t_64_sync_handler+0xcc/0xe4 [ 87.594342][ T5444] el0t_64_sync+0x1a0/0x1a4 [ 87.600176][ T5452] block nbd1: shutting down sockets [ 87.609549][ T5448] FAULT_INJECTION: forcing a failure. [ 87.609549][ T5448] name failslab, interval 1, probability 0, space 0, times 0 [ 87.612325][ T5444] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.613167][ T5448] CPU: 0 PID: 5448 Comm: syz-executor.3 Tainted: G W 5.15.188-syzkaller #0 [ 87.613184][ T5448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.613192][ T5448] Call trace: [ 87.613195][ T5448] dump_backtrace+0x0/0x43c [ 87.613210][ T5448] show_stack+0x2c/0x3c [ 87.613218][ T5448] __dump_stack+0x30/0x40 [ 87.625601][ T5448] dump_stack_lvl+0xf8/0x160 [ 87.626908][ T5448] dump_stack+0x1c/0x5c [ 87.628087][ T5448] should_fail+0x3c0/0x51c [ 87.629266][ T5448] __should_failslab+0xbc/0x10c [ 87.630786][ T5448] should_failslab+0x10/0x28 [ 87.632143][ T5448] slab_pre_alloc_hook+0x64/0xec [ 87.633455][ T5448] __kmalloc_node+0xb8/0x520 [ 87.634697][ T5448] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.636211][ T5448] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.637802][ T5448] nbd_start_device+0x14c/0xb40 [ 87.639101][ T5448] nbd_ioctl+0x514/0xc50 [ 87.640239][ T5448] blkdev_ioctl+0x5f8/0xbb8 [ 87.641540][ T5448] block_ioctl+0xa4/0x118 [ 87.642739][ T5448] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.644102][ T5448] invoke_syscall+0x98/0x2b8 [ 87.645365][ T5448] el0_svc_common+0x138/0x258 [ 87.646692][ T5448] do_el0_svc+0x58/0x14c [ 87.647889][ T5448] el0_svc+0x78/0x1e0 [ 87.648980][ T5448] el0t_64_sync_handler+0xcc/0xe4 [ 87.650385][ T5448] el0t_64_sync+0x1a0/0x1a4 [ 87.663666][ T5449] FAULT_INJECTION: forcing a failure. [ 87.663666][ T5449] name failslab, interval 1, probability 0, space 0, times 0 [ 87.672639][ T5449] CPU: 1 PID: 5449 Comm: syz-executor.2 Tainted: G W 5.15.188-syzkaller #0 [ 87.675591][ T5449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.678462][ T5449] Call trace: [ 87.679384][ T5449] dump_backtrace+0x0/0x43c [ 87.680655][ T5449] show_stack+0x2c/0x3c [ 87.681830][ T5449] __dump_stack+0x30/0x40 [ 87.683079][ T5449] dump_stack_lvl+0xf8/0x160 [ 87.684394][ T5449] dump_stack+0x1c/0x5c [ 87.685610][ T5449] should_fail+0x3c0/0x51c [ 87.686869][ T5449] __should_failslab+0xbc/0x10c [ 87.688264][ T5449] should_failslab+0x10/0x28 [ 87.689656][ T5449] slab_pre_alloc_hook+0x64/0xec [ 87.691060][ T5449] __kmalloc_node+0xb8/0x520 [ 87.692350][ T5449] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 87.694021][ T5449] nbd_start_device+0x14c/0xb40 [ 87.695452][ T5449] nbd_ioctl+0x514/0xc50 [ 87.696656][ T5449] blkdev_ioctl+0x5f8/0xbb8 [ 87.697893][ T5449] block_ioctl+0xa4/0x118 [ 87.699121][ T5449] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.700599][ T5449] invoke_syscall+0x98/0x2b8 [ 87.701943][ T5449] el0_svc_common+0x138/0x258 [ 87.703358][ T5449] do_el0_svc+0x58/0x14c [ 87.704596][ T5449] el0_svc+0x78/0x1e0 [ 87.705731][ T5449] el0t_64_sync_handler+0xcc/0xe4 [ 87.707242][ T5449] el0t_64_sync+0x1a0/0x1a4 [ 87.734774][ T5451] FAULT_INJECTION: forcing a failure. [ 87.734774][ T5451] name failslab, interval 1, probability 0, space 0, times 0 [ 87.737083][ T5448] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.740985][ T5451] CPU: 1 PID: 5451 Comm: syz-executor.1 Tainted: G W 5.15.188-syzkaller #0 [ 87.743837][ T5451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.746756][ T5451] Call trace: [ 87.747737][ T5451] dump_backtrace+0x0/0x43c [ 87.749068][ T5451] show_stack+0x2c/0x3c [ 87.750303][ T5451] __dump_stack+0x30/0x40 [ 87.751583][ T5451] dump_stack_lvl+0xf8/0x160 [ 87.752879][ T5451] dump_stack+0x1c/0x5c [ 87.754108][ T5451] should_fail+0x3c0/0x51c [ 87.755362][ T5451] __should_failslab+0xbc/0x10c [ 87.756699][ T5451] should_failslab+0x10/0x28 [ 87.757962][ T5451] slab_pre_alloc_hook+0x64/0xec [ 87.759380][ T5451] __kmalloc_node+0xb8/0x520 [ 87.760808][ T5451] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.762331][ T5451] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.763949][ T5451] nbd_start_device+0x14c/0xb40 [ 87.765363][ T5451] nbd_ioctl+0x514/0xc50 [ 87.766589][ T5451] blkdev_ioctl+0x5f8/0xbb8 [ 87.767890][ T5451] block_ioctl+0xa4/0x118 [ 87.769112][ T5451] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.770628][ T5451] invoke_syscall+0x98/0x2b8 [ 87.771939][ T5451] el0_svc_common+0x138/0x258 [ 87.773307][ T5451] do_el0_svc+0x58/0x14c [ 87.774498][ T5451] el0_svc+0x78/0x1e0 [ 87.775613][ T5451] el0t_64_sync_handler+0xcc/0xe4 [ 87.777118][ T5451] el0t_64_sync+0x1a0/0x1a4 [ 87.779306][ T5456] block nbd0: shutting down sockets [ 87.786415][ T5451] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.846156][ T5458] block nbd4: shutting down sockets [ 87.853661][ T5456] FAULT_INJECTION: forcing a failure. [ 87.853661][ T5456] name failslab, interval 1, probability 0, space 0, times 0 [ 87.873724][ T5456] CPU: 1 PID: 5456 Comm: syz-executor.0 Tainted: G W 5.15.188-syzkaller #0 [ 87.876596][ T5456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.879515][ T5456] Call trace: [ 87.880455][ T5456] dump_backtrace+0x0/0x43c [ 87.881779][ T5456] show_stack+0x2c/0x3c [ 87.883020][ T5456] __dump_stack+0x30/0x40 [ 87.884283][ T5456] dump_stack_lvl+0xf8/0x160 [ 87.885614][ T5456] dump_stack+0x1c/0x5c [ 87.886814][ T5456] should_fail+0x3c0/0x51c [ 87.888093][ T5456] __should_failslab+0xbc/0x10c [ 87.889498][ T5456] should_failslab+0x10/0x28 [ 87.890755][ T5456] slab_pre_alloc_hook+0x64/0xec [ 87.892140][ T5456] __kmalloc_node+0xb8/0x520 [ 87.893431][ T5456] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 87.894885][ T5456] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 87.896593][ T5456] nbd_start_device+0x14c/0xb40 [ 87.897974][ T5456] nbd_ioctl+0x514/0xc50 [ 87.899185][ T5456] blkdev_ioctl+0x5f8/0xbb8 [ 87.900438][ T5456] block_ioctl+0xa4/0x118 [ 87.901632][ T5456] __arm64_sys_ioctl+0x14c/0x1c8 [ 87.903052][ T5456] invoke_syscall+0x98/0x2b8 [ 87.904375][ T5456] el0_svc_common+0x138/0x258 [ 87.905670][ T5456] do_el0_svc+0x58/0x14c [ 87.906866][ T5456] el0_svc+0x78/0x1e0 [ 87.908089][ T5456] el0t_64_sync_handler+0xcc/0xe4 [ 87.909492][ T5456] el0t_64_sync+0x1a0/0x1a4 [ 87.919732][ T5456] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 87.955898][ T5464] block nbd1: shutting down sockets [ 87.960785][ T5458] FAULT_INJECTION: forcing a failure. [ 87.960785][ T5458] name failslab, interval 1, probability 0, space 0, times 0 [ 87.965583][ T5458] CPU: 0 PID: 5458 Comm: syz-executor.4 Tainted: G W 5.15.188-syzkaller #0 [ 87.968468][ T5458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 87.971270][ T5458] Call trace: [ 87.972186][ T5458] dump_backtrace+0x0/0x43c [ 87.973470][ T5458] show_stack+0x2c/0x3c [ 87.974577][ T5458] __dump_stack+0x30/0x40 [ 87.975742][ T5458] dump_stack_lvl+0xf8/0x160 [ 87.976984][ T5458] dump_stack+0x1c/0x5c [ 87.978093][ T5458] should_fail+0x3c0/0x51c [ 87.979343][ T5458] __should_failslab+0xbc/0x10c [ 87.980638][ T5458] should_failslab+0x10/0x28 [ 87.982045][ T5458] slab_pre_alloc_hook+0x64/0xec [ 87.983413][ T5458] __kmalloc_node+0xb8/0x520 [ 87.984691][ T5458] blk_mq_realloc_hw_ctxs+0xb8/0x133c