Warning: Permanently added '10.128.0.154' (ED25519) to the list of known hosts. 1970/01/01 00:00:47 ignoring optional flag "type"="gce" 1970/01/01 00:00:47 parsed 1 programs [ 47.909211][ T4298] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k SSFS 1970/01/01 00:00:47 executed programs: 0 [ 47.979775][ T4314] chnl_net:caif_netlink_parms(): no params data found [ 47.996287][ T4314] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.997507][ T4314] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.998892][ T4314] device bridge_slave_0 entered promiscuous mode [ 48.000814][ T4314] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.001898][ T4314] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.003260][ T4314] device bridge_slave_1 entered promiscuous mode [ 48.011029][ T4314] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.013159][ T4314] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.020803][ T4314] team0: Port device team_slave_0 added [ 48.023084][ T4314] team0: Port device team_slave_1 added [ 48.029258][ T4314] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.030314][ T4314] 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. [ 48.034037][ T4314] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.036512][ T4314] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 48.037486][ T4314] 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. [ 48.041288][ T4314] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 48.105876][ T4314] device hsr_slave_0 entered promiscuous mode [ 48.144872][ T4314] device hsr_slave_1 entered promiscuous mode [ 48.733546][ T4314] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 48.756066][ T4314] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 48.815886][ T4314] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 48.876090][ T4314] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 48.923548][ T4314] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.924758][ T4314] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.925903][ T4314] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.926931][ T4314] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.944497][ T4314] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.949113][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.951021][ T1644] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.952474][ T1644] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.954154][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.967296][ T4314] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.969826][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.971367][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.972798][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.973870][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.978392][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.980019][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.981528][ T1644] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.982650][ T1644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.990406][ T4314] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.992062][ T4314] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.995693][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 48.997415][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 48.999823][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 49.001757][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.003170][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 49.006414][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.007923][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 49.009431][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.013513][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 49.016514][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.019922][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.021381][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.062880][ T4314] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.070367][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.071702][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.078296][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 49.079799][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.087190][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 49.088702][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.090306][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.091868][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.094494][ T4314] device veth0_vlan entered promiscuous mode [ 49.099245][ T4314] device veth1_vlan entered promiscuous mode [ 49.107388][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.108830][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.110258][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 49.111849][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.116639][ T4314] device veth0_macvtap entered promiscuous mode [ 49.119290][ T4314] device veth1_macvtap entered promiscuous mode [ 49.125360][ T4314] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.126708][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.128194][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 49.129562][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 49.131105][ T148] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.134338][ T4314] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.137401][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 49.138950][ T1644] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.141761][ T4314] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.142997][ T4314] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.144241][ T4314] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.146427][ T4314] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.267304][ T4451] FAULT_INJECTION: forcing a failure. [ 49.267304][ T4451] name failslab, interval 1, probability 0, space 0, times 1 [ 49.269376][ T4451] CPU: 1 PID: 4451 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.270622][ T4451] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.272329][ T4451] Call trace: [ 49.272874][ T4451] dump_backtrace+0x0/0x43c [ 49.273586][ T4451] show_stack+0x2c/0x3c [ 49.274231][ T4451] __dump_stack+0x30/0x40 [ 49.274891][ T4451] dump_stack_lvl+0xf8/0x160 [ 49.275627][ T4451] dump_stack+0x1c/0x5c [ 49.276304][ T4451] should_fail+0x3c0/0x51c [ 49.277031][ T4451] __should_failslab+0xbc/0x10c [ 49.277821][ T4451] should_failslab+0x10/0x28 [ 49.278622][ T4451] slab_pre_alloc_hook+0x64/0xec [ 49.279449][ T4451] __kmalloc_node+0xb8/0x520 [ 49.280227][ T4451] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 49.281104][ T4451] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 49.282056][ T4451] nbd_start_device+0x14c/0xb40 [ 49.282873][ T4451] nbd_ioctl+0x514/0xc50 [ 49.283596][ T4451] blkdev_ioctl+0x5f8/0xbb8 [ 49.284372][ T4451] block_ioctl+0xa4/0x118 [ 49.285109][ T4451] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.285898][ T4451] invoke_syscall+0x98/0x2b8 [ 49.286656][ T4451] el0_svc_common+0x138/0x258 [ 49.287475][ T4451] do_el0_svc+0x58/0x14c [ 49.288195][ T4451] el0_svc+0x78/0x1e0 [ 49.288814][ T4451] el0t_64_sync_handler+0xcc/0xe4 [ 49.289516][ T4451] el0t_64_sync+0x1a0/0x1a4 [ 49.293078][ T4451] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 49.298444][ T4467] block nbd0: shutting down sockets [ 49.436683][ T4482] FAULT_INJECTION: forcing a failure. [ 49.436683][ T4482] name failslab, interval 1, probability 0, space 0, times 0 [ 49.438943][ T4482] CPU: 1 PID: 4482 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.440096][ T4482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.441624][ T4482] Call trace: [ 49.442100][ T4482] dump_backtrace+0x0/0x43c [ 49.442829][ T4482] show_stack+0x2c/0x3c [ 49.443487][ T4482] __dump_stack+0x30/0x40 [ 49.444168][ T4482] dump_stack_lvl+0xf8/0x160 [ 49.444929][ T4482] dump_stack+0x1c/0x5c [ 49.445558][ T4482] should_fail+0x3c0/0x51c [ 49.446245][ T4482] __should_failslab+0xbc/0x10c [ 49.446939][ T4482] should_failslab+0x10/0x28 [ 49.447600][ T4482] slab_pre_alloc_hook+0x64/0xec [ 49.448302][ T4482] __kmalloc_node+0xb8/0x520 [ 49.448984][ T4482] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 49.449741][ T4482] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 49.450599][ T4482] nbd_start_device+0x14c/0xb40 [ 49.451346][ T4482] nbd_ioctl+0x514/0xc50 [ 49.452009][ T4482] blkdev_ioctl+0x5f8/0xbb8 [ 49.452767][ T4482] block_ioctl+0xa4/0x118 [ 49.453538][ T4482] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.454248][ T4482] invoke_syscall+0x98/0x2b8 [ 49.454931][ T4482] el0_svc_common+0x138/0x258 [ 49.455639][ T4482] do_el0_svc+0x58/0x14c [ 49.456259][ T4482] el0_svc+0x78/0x1e0 [ 49.456854][ T4482] el0t_64_sync_handler+0xcc/0xe4 [ 49.457619][ T4482] el0t_64_sync+0x1a0/0x1a4 [ 49.460494][ T4482] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 49.463357][ T4471] block nbd0: shutting down sockets [ 49.586343][ T4497] FAULT_INJECTION: forcing a failure. [ 49.586343][ T4497] name failslab, interval 1, probability 0, space 0, times 0 [ 49.588315][ T4497] CPU: 0 PID: 4497 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.589417][ T4497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.590977][ T4497] Call trace: [ 49.591466][ T4497] dump_backtrace+0x0/0x43c [ 49.592160][ T4497] show_stack+0x2c/0x3c [ 49.592746][ T4497] __dump_stack+0x30/0x40 [ 49.593342][ T4497] dump_stack_lvl+0xf8/0x160 [ 49.593992][ T4497] dump_stack+0x1c/0x5c [ 49.594615][ T4497] should_fail+0x3c0/0x51c [ 49.595231][ T4497] __should_failslab+0xbc/0x10c [ 49.595992][ T4497] should_failslab+0x10/0x28 [ 49.596689][ T4497] slab_pre_alloc_hook+0x64/0xec [ 49.597455][ T4497] __kmalloc_node+0xb8/0x520 [ 49.598208][ T4497] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 49.599132][ T4497] nbd_start_device+0x14c/0xb40 [ 49.599912][ T4497] nbd_ioctl+0x514/0xc50 [ 49.600541][ T4497] blkdev_ioctl+0x5f8/0xbb8 [ 49.601169][ T4497] block_ioctl+0xa4/0x118 [ 49.601825][ T4497] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.602547][ T4497] invoke_syscall+0x98/0x2b8 [ 49.603220][ T4497] el0_svc_common+0x138/0x258 [ 49.603946][ T4497] do_el0_svc+0x58/0x14c [ 49.604640][ T4497] el0_svc+0x78/0x1e0 [ 49.605266][ T4497] el0t_64_sync_handler+0xcc/0xe4 [ 49.606011][ T4497] el0t_64_sync+0x1a0/0x1a4 [ 49.613422][ T4510] block nbd0: shutting down sockets [ 49.746499][ T4517] FAULT_INJECTION: forcing a failure. [ 49.746499][ T4517] name failslab, interval 1, probability 0, space 0, times 0 [ 49.748551][ T4517] CPU: 0 PID: 4517 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.749850][ T4517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.751376][ T4517] Call trace: [ 49.751883][ T4517] dump_backtrace+0x0/0x43c [ 49.752578][ T4517] show_stack+0x2c/0x3c [ 49.753188][ T4517] __dump_stack+0x30/0x40 [ 49.753813][ T4517] dump_stack_lvl+0xf8/0x160 [ 49.754448][ T4517] dump_stack+0x1c/0x5c [ 49.755081][ T4517] should_fail+0x3c0/0x51c [ 49.755769][ T4517] __should_failslab+0xbc/0x10c [ 49.756491][ T4517] should_failslab+0x10/0x28 [ 49.757250][ T4517] slab_pre_alloc_hook+0x64/0xec [ 49.758033][ T4517] __kmalloc_node+0xb8/0x520 [ 49.758754][ T4517] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 49.759750][ T4517] nbd_start_device+0x14c/0xb40 [ 49.760537][ T4517] nbd_ioctl+0x514/0xc50 [ 49.761188][ T4517] blkdev_ioctl+0x5f8/0xbb8 [ 49.761895][ T4517] block_ioctl+0xa4/0x118 [ 49.762564][ T4517] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.763254][ T4517] invoke_syscall+0x98/0x2b8 [ 49.763917][ T4517] el0_svc_common+0x138/0x258 [ 49.764555][ T4517] do_el0_svc+0x58/0x14c [ 49.765177][ T4517] el0_svc+0x78/0x1e0 [ 49.765757][ T4517] el0t_64_sync_handler+0xcc/0xe4 [ 49.766485][ T4517] el0t_64_sync+0x1a0/0x1a4 [ 49.774485][ T4535] block nbd0: shutting down sockets [ 49.916197][ T4540] FAULT_INJECTION: forcing a failure. [ 49.916197][ T4540] name failslab, interval 1, probability 0, space 0, times 0 [ 49.918258][ T4540] CPU: 0 PID: 4540 Comm: syz-executor.0 Not tainted syzkaller #0 [ 49.919462][ T4540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 49.921054][ T4540] Call trace: [ 49.921558][ T4540] dump_backtrace+0x0/0x43c [ 49.922264][ T4540] show_stack+0x2c/0x3c [ 49.922851][ T4540] __dump_stack+0x30/0x40 [ 49.923538][ T4540] dump_stack_lvl+0xf8/0x160 [ 49.924237][ T4540] dump_stack+0x1c/0x5c [ 49.924836][ T4540] should_fail+0x3c0/0x51c [ 49.925563][ T4540] __should_failslab+0xbc/0x10c [ 49.926248][ T4540] should_failslab+0x10/0x28 [ 49.926982][ T4540] slab_pre_alloc_hook+0x64/0xec [ 49.927765][ T4540] __kmalloc_node+0xb8/0x520 [ 49.928495][ T4540] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 49.929336][ T4540] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 49.930163][ T4540] nbd_start_device+0x14c/0xb40 [ 49.930919][ T4540] nbd_ioctl+0x514/0xc50 [ 49.931548][ T4540] blkdev_ioctl+0x5f8/0xbb8 [ 49.932199][ T4540] block_ioctl+0xa4/0x118 [ 49.932819][ T4540] __arm64_sys_ioctl+0x14c/0x1c8 [ 49.933560][ T4540] invoke_syscall+0x98/0x2b8 [ 49.934312][ T4540] el0_svc_common+0x138/0x258 [ 49.935123][ T4540] do_el0_svc+0x58/0x14c [ 49.935813][ T4540] el0_svc+0x78/0x1e0 [ 49.936421][ T4540] el0t_64_sync_handler+0xcc/0xe4 [ 49.937233][ T4540] el0t_64_sync+0x1a0/0x1a4 [ 49.939704][ T4540] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 49.945358][ T7] Bluetooth: hci0: command 0x0409 tx timeout [ 49.949353][ T4560] block nbd0: shutting down sockets [ 50.076638][ T4577] FAULT_INJECTION: forcing a failure. [ 50.076638][ T4577] name failslab, interval 1, probability 0, space 0, times 0 [ 50.078827][ T4577] CPU: 0 PID: 4577 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.080068][ T4577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.081710][ T4577] Call trace: [ 50.082227][ T4577] dump_backtrace+0x0/0x43c [ 50.082974][ T4577] show_stack+0x2c/0x3c [ 50.083638][ T4577] __dump_stack+0x30/0x40 [ 50.084310][ T4577] dump_stack_lvl+0xf8/0x160 [ 50.085028][ T4577] dump_stack+0x1c/0x5c [ 50.085628][ T4577] should_fail+0x3c0/0x51c [ 50.086302][ T4577] __should_failslab+0xbc/0x10c [ 50.087018][ T4577] should_failslab+0x10/0x28 [ 50.087646][ T4577] slab_pre_alloc_hook+0x64/0xec [ 50.088440][ T4577] __kmalloc_node+0xb8/0x520 [ 50.089179][ T4577] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 50.090010][ T4577] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 50.090914][ T4577] nbd_start_device+0x14c/0xb40 [ 50.091620][ T4577] nbd_ioctl+0x514/0xc50 [ 50.092265][ T4577] blkdev_ioctl+0x5f8/0xbb8 [ 50.092979][ T4577] block_ioctl+0xa4/0x118 [ 50.093706][ T4577] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.094514][ T4577] invoke_syscall+0x98/0x2b8 [ 50.095180][ T4577] el0_svc_common+0x138/0x258 [ 50.095934][ T4577] do_el0_svc+0x58/0x14c [ 50.096639][ T4577] el0_svc+0x78/0x1e0 [ 50.097294][ T4577] el0t_64_sync_handler+0xcc/0xe4 [ 50.098097][ T4577] el0t_64_sync+0x1a0/0x1a4 [ 50.100303][ T4577] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 50.112212][ T4563] block nbd0: shutting down sockets [ 50.266407][ T4600] FAULT_INJECTION: forcing a failure. [ 50.266407][ T4600] name failslab, interval 1, probability 0, space 0, times 0 [ 50.268558][ T4600] CPU: 1 PID: 4600 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.269764][ T4600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.271219][ T4600] Call trace: [ 50.271717][ T4600] dump_backtrace+0x0/0x43c [ 50.272363][ T4600] show_stack+0x2c/0x3c [ 50.272981][ T4600] __dump_stack+0x30/0x40 [ 50.273649][ T4600] dump_stack_lvl+0xf8/0x160 [ 50.274322][ T4600] dump_stack+0x1c/0x5c [ 50.274923][ T4600] should_fail+0x3c0/0x51c [ 50.275584][ T4600] __should_failslab+0xbc/0x10c [ 50.276303][ T4600] should_failslab+0x10/0x28 [ 50.276980][ T4600] slab_pre_alloc_hook+0x64/0xec [ 50.277812][ T4600] __kmalloc_node+0xb8/0x520 [ 50.278575][ T4600] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 50.279518][ T4600] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 50.280419][ T4600] nbd_start_device+0x14c/0xb40 [ 50.281236][ T4600] nbd_ioctl+0x514/0xc50 [ 50.281939][ T4600] blkdev_ioctl+0x5f8/0xbb8 [ 50.282652][ T4600] block_ioctl+0xa4/0x118 [ 50.283318][ T4600] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.284095][ T4600] invoke_syscall+0x98/0x2b8 [ 50.284787][ T4600] el0_svc_common+0x138/0x258 [ 50.285541][ T4600] do_el0_svc+0x58/0x14c [ 50.286218][ T4600] el0_svc+0x78/0x1e0 [ 50.286839][ T4600] el0t_64_sync_handler+0xcc/0xe4 [ 50.287627][ T4600] el0t_64_sync+0x1a0/0x1a4 [ 50.290203][ T4600] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 50.298722][ T4589] block nbd0: shutting down sockets [ 50.447493][ T4617] FAULT_INJECTION: forcing a failure. [ 50.447493][ T4617] name failslab, interval 1, probability 0, space 0, times 0 [ 50.449568][ T4617] CPU: 1 PID: 4617 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.450807][ T4617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.452337][ T4617] Call trace: [ 50.452839][ T4617] dump_backtrace+0x0/0x43c [ 50.453548][ T4617] show_stack+0x2c/0x3c [ 50.454229][ T4617] __dump_stack+0x30/0x40 [ 50.454929][ T4617] dump_stack_lvl+0xf8/0x160 [ 50.455646][ T4617] dump_stack+0x1c/0x5c [ 50.456278][ T4617] should_fail+0x3c0/0x51c [ 50.456953][ T4617] __should_failslab+0xbc/0x10c [ 50.457710][ T4617] should_failslab+0x10/0x28 [ 50.458458][ T4617] slab_pre_alloc_hook+0x64/0xec [ 50.459235][ T4617] __kmalloc_node+0xb8/0x520 [ 50.459996][ T4617] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 50.460848][ T4617] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 50.461765][ T4617] nbd_start_device+0x14c/0xb40 [ 50.462598][ T4617] nbd_ioctl+0x514/0xc50 [ 50.463308][ T4617] blkdev_ioctl+0x5f8/0xbb8 [ 50.464049][ T4617] block_ioctl+0xa4/0x118 [ 50.464749][ T4617] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.465518][ T4617] invoke_syscall+0x98/0x2b8 [ 50.466224][ T4617] el0_svc_common+0x138/0x258 [ 50.466976][ T4617] do_el0_svc+0x58/0x14c [ 50.467626][ T4617] el0_svc+0x78/0x1e0 [ 50.468244][ T4617] el0t_64_sync_handler+0xcc/0xe4 [ 50.469095][ T4617] el0t_64_sync+0x1a0/0x1a4 [ 50.471444][ T4617] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 50.478328][ T4633] block nbd0: shutting down sockets [ 50.606307][ T4639] FAULT_INJECTION: forcing a failure. [ 50.606307][ T4639] name failslab, interval 1, probability 0, space 0, times 0 [ 50.608380][ T4639] CPU: 1 PID: 4639 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.609538][ T4639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.611068][ T4639] Call trace: [ 50.611538][ T4639] dump_backtrace+0x0/0x43c [ 50.612274][ T4639] show_stack+0x2c/0x3c [ 50.612956][ T4639] __dump_stack+0x30/0x40 [ 50.613607][ T4639] dump_stack_lvl+0xf8/0x160 [ 50.614255][ T4639] dump_stack+0x1c/0x5c [ 50.614905][ T4639] should_fail+0x3c0/0x51c [ 50.615645][ T4639] __should_failslab+0xbc/0x10c [ 50.616394][ T4639] should_failslab+0x10/0x28 [ 50.617110][ T4639] slab_pre_alloc_hook+0x64/0xec [ 50.617883][ T4639] __kmalloc_node+0xb8/0x520 [ 50.618572][ T4639] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 50.619361][ T4639] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 50.620238][ T4639] nbd_start_device+0x14c/0xb40 [ 50.620949][ T4639] nbd_ioctl+0x514/0xc50 [ 50.621671][ T4639] blkdev_ioctl+0x5f8/0xbb8 [ 50.622410][ T4639] block_ioctl+0xa4/0x118 [ 50.623069][ T4639] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.623848][ T4639] invoke_syscall+0x98/0x2b8 [ 50.624585][ T4639] el0_svc_common+0x138/0x258 [ 50.625277][ T4639] do_el0_svc+0x58/0x14c [ 50.625908][ T4639] el0_svc+0x78/0x1e0 [ 50.626510][ T4639] el0t_64_sync_handler+0xcc/0xe4 [ 50.627260][ T4639] el0t_64_sync+0x1a0/0x1a4 [ 50.628217][ T4639] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 50.631555][ T4650] block nbd0: shutting down sockets [ 50.776356][ T4652] FAULT_INJECTION: forcing a failure. [ 50.776356][ T4652] name failslab, interval 1, probability 0, space 0, times 0 [ 50.778307][ T4652] CPU: 1 PID: 4652 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.779487][ T4652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.780898][ T4652] Call trace: [ 50.781355][ T4652] dump_backtrace+0x0/0x43c [ 50.781998][ T4652] show_stack+0x2c/0x3c [ 50.782624][ T4652] __dump_stack+0x30/0x40 [ 50.783245][ T4652] dump_stack_lvl+0xf8/0x160 [ 50.783911][ T4652] dump_stack+0x1c/0x5c [ 50.784551][ T4652] should_fail+0x3c0/0x51c [ 50.785217][ T4652] __should_failslab+0xbc/0x10c [ 50.785929][ T4652] should_failslab+0x10/0x28 [ 50.786640][ T4652] slab_pre_alloc_hook+0x64/0xec [ 50.787408][ T4652] __kmalloc_node+0xb8/0x520 [ 50.788075][ T4652] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 50.788947][ T4652] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 50.789858][ T4652] nbd_start_device+0x14c/0xb40 [ 50.790573][ T4652] nbd_ioctl+0x514/0xc50 [ 50.791204][ T4652] blkdev_ioctl+0x5f8/0xbb8 [ 50.791868][ T4652] block_ioctl+0xa4/0x118 [ 50.792485][ T4652] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.793239][ T4652] invoke_syscall+0x98/0x2b8 [ 50.793938][ T4652] el0_svc_common+0x138/0x258 [ 50.794663][ T4652] do_el0_svc+0x58/0x14c [ 50.795327][ T4652] el0_svc+0x78/0x1e0 [ 50.795914][ T4652] el0t_64_sync_handler+0xcc/0xe4 [ 50.796748][ T4652] el0t_64_sync+0x1a0/0x1a4 [ 50.797890][ T4652] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 50.800476][ T4653] block nbd0: shutting down sockets [ 50.946355][ T4655] FAULT_INJECTION: forcing a failure. [ 50.946355][ T4655] name failslab, interval 1, probability 0, space 0, times 0 [ 50.948480][ T4655] CPU: 0 PID: 4655 Comm: syz-executor.0 Not tainted syzkaller #0 [ 50.949577][ T4655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 50.950966][ T4655] Call trace: [ 50.951442][ T4655] dump_backtrace+0x0/0x43c [ 50.952193][ T4655] show_stack+0x2c/0x3c [ 50.952849][ T4655] __dump_stack+0x30/0x40 [ 50.953491][ T4655] dump_stack_lvl+0xf8/0x160 [ 50.954184][ T4655] dump_stack+0x1c/0x5c [ 50.954814][ T4655] should_fail+0x3c0/0x51c [ 50.955486][ T4655] __should_failslab+0xbc/0x10c [ 50.956277][ T4655] should_failslab+0x10/0x28 [ 50.957009][ T4655] slab_pre_alloc_hook+0x64/0xec [ 50.957760][ T4655] __kmalloc_node+0xb8/0x520 [ 50.958475][ T4655] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 50.959417][ T4655] nbd_start_device+0x14c/0xb40 [ 50.960131][ T4655] nbd_ioctl+0x514/0xc50 [ 50.960761][ T4655] blkdev_ioctl+0x5f8/0xbb8 [ 50.961421][ T4655] block_ioctl+0xa4/0x118 [ 50.962159][ T4655] __arm64_sys_ioctl+0x14c/0x1c8 [ 50.963030][ T4655] invoke_syscall+0x98/0x2b8 [ 50.963801][ T4655] el0_svc_common+0x138/0x258 [ 50.964512][ T4655] do_el0_svc+0x58/0x14c [ 50.965131][ T4655] el0_svc+0x78/0x1e0 [ 50.965717][ T4655] el0t_64_sync_handler+0xcc/0xe4 [ 50.966561][ T4655] el0t_64_sync+0x1a0/0x1a4 [ 50.969848][ T4656] block nbd0: shutting down sockets [ 51.136144][ T4659] FAULT_INJECTION: forcing a failure. [ 51.136144][ T4659] name failslab, interval 1, probability 0, space 0, times 0 [ 51.138230][ T4659] CPU: 1 PID: 4659 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.139444][ T4659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.141012][ T4659] Call trace: [ 51.141494][ T4659] dump_backtrace+0x0/0x43c [ 51.142143][ T4659] show_stack+0x2c/0x3c [ 51.142799][ T4659] __dump_stack+0x30/0x40 [ 51.143439][ T4659] dump_stack_lvl+0xf8/0x160 [ 51.144124][ T4659] dump_stack+0x1c/0x5c [ 51.144767][ T4659] should_fail+0x3c0/0x51c [ 51.145407][ T4659] __should_failslab+0xbc/0x10c [ 51.146089][ T4659] should_failslab+0x10/0x28 [ 51.146799][ T4659] slab_pre_alloc_hook+0x64/0xec [ 51.147466][ T4659] __kmalloc_node+0xb8/0x520 [ 51.148119][ T4659] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 51.148896][ T4659] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 51.149720][ T4659] nbd_start_device+0x14c/0xb40 [ 51.150434][ T4659] nbd_ioctl+0x514/0xc50 [ 51.151134][ T4659] blkdev_ioctl+0x5f8/0xbb8 [ 51.151827][ T4659] block_ioctl+0xa4/0x118 [ 51.152452][ T4659] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.153210][ T4659] invoke_syscall+0x98/0x2b8 [ 51.153978][ T4659] el0_svc_common+0x138/0x258 [ 51.154739][ T4659] do_el0_svc+0x58/0x14c [ 51.155389][ T4659] el0_svc+0x78/0x1e0 [ 51.155959][ T4659] el0t_64_sync_handler+0xcc/0xe4 [ 51.156748][ T4659] el0t_64_sync+0x1a0/0x1a4 [ 51.157900][ T4659] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 51.161849][ T4658] block nbd0: shutting down sockets [ 51.326301][ T4662] FAULT_INJECTION: forcing a failure. [ 51.326301][ T4662] name failslab, interval 1, probability 0, space 0, times 0 [ 51.328338][ T4662] CPU: 0 PID: 4662 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.329506][ T4662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.331127][ T4662] Call trace: [ 51.331653][ T4662] dump_backtrace+0x0/0x43c [ 51.332384][ T4662] show_stack+0x2c/0x3c [ 51.333028][ T4662] __dump_stack+0x30/0x40 [ 51.333670][ T4662] dump_stack_lvl+0xf8/0x160 [ 51.334382][ T4662] dump_stack+0x1c/0x5c [ 51.335063][ T4662] should_fail+0x3c0/0x51c [ 51.335811][ T4662] __should_failslab+0xbc/0x10c [ 51.336587][ T4662] should_failslab+0x10/0x28 [ 51.337323][ T4662] slab_pre_alloc_hook+0x64/0xec [ 51.338083][ T4662] __kmalloc_node+0xb8/0x520 [ 51.338783][ T4662] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 51.339585][ T4662] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 51.340439][ T4662] nbd_start_device+0x14c/0xb40 [ 51.341237][ T4662] nbd_ioctl+0x514/0xc50 [ 51.341945][ T4662] blkdev_ioctl+0x5f8/0xbb8 [ 51.342678][ T4662] block_ioctl+0xa4/0x118 [ 51.343386][ T4662] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.344171][ T4662] invoke_syscall+0x98/0x2b8 [ 51.344926][ T4662] el0_svc_common+0x138/0x258 [ 51.345725][ T4662] do_el0_svc+0x58/0x14c [ 51.346465][ T4662] el0_svc+0x78/0x1e0 [ 51.347091][ T4662] el0t_64_sync_handler+0xcc/0xe4 [ 51.347831][ T4662] el0t_64_sync+0x1a0/0x1a4 [ 51.349283][ T4662] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 51.351886][ T4663] block nbd0: shutting down sockets [ 51.486131][ T4665] FAULT_INJECTION: forcing a failure. [ 51.486131][ T4665] name failslab, interval 1, probability 0, space 0, times 0 [ 51.488034][ T4665] CPU: 1 PID: 4665 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.489237][ T4665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.490793][ T4665] Call trace: [ 51.491296][ T4665] dump_backtrace+0x0/0x43c [ 51.492004][ T4665] show_stack+0x2c/0x3c [ 51.492601][ T4665] __dump_stack+0x30/0x40 [ 51.493239][ T4665] dump_stack_lvl+0xf8/0x160 [ 51.493887][ T4665] dump_stack+0x1c/0x5c [ 51.494530][ T4665] should_fail+0x3c0/0x51c [ 51.495217][ T4665] __should_failslab+0xbc/0x10c [ 51.495919][ T4665] should_failslab+0x10/0x28 [ 51.496643][ T4665] slab_pre_alloc_hook+0x64/0xec [ 51.497398][ T4665] __kmalloc_node+0xb8/0x520 [ 51.498039][ T4665] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 51.498906][ T4665] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 51.499802][ T4665] nbd_start_device+0x14c/0xb40 [ 51.500533][ T4665] nbd_ioctl+0x514/0xc50 [ 51.501232][ T4665] blkdev_ioctl+0x5f8/0xbb8 [ 51.501927][ T4665] block_ioctl+0xa4/0x118 [ 51.502603][ T4665] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.503373][ T4665] invoke_syscall+0x98/0x2b8 [ 51.504098][ T4665] el0_svc_common+0x138/0x258 [ 51.504810][ T4665] do_el0_svc+0x58/0x14c [ 51.505415][ T4665] el0_svc+0x78/0x1e0 [ 51.506007][ T4665] el0t_64_sync_handler+0xcc/0xe4 [ 51.506743][ T4665] el0t_64_sync+0x1a0/0x1a4 [ 51.507835][ T4665] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 51.510371][ T4666] block nbd0: shutting down sockets [ 51.696223][ T4669] FAULT_INJECTION: forcing a failure. [ 51.696223][ T4669] name failslab, interval 1, probability 0, space 0, times 0 [ 51.698223][ T4669] CPU: 1 PID: 4669 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.699321][ T4669] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.700714][ T4669] Call trace: [ 51.701147][ T4669] dump_backtrace+0x0/0x43c [ 51.701732][ T4669] show_stack+0x2c/0x3c [ 51.702320][ T4669] __dump_stack+0x30/0x40 [ 51.702934][ T4669] dump_stack_lvl+0xf8/0x160 [ 51.703657][ T4669] dump_stack+0x1c/0x5c [ 51.704259][ T4669] should_fail+0x3c0/0x51c [ 51.704910][ T4669] __should_failslab+0xbc/0x10c [ 51.705614][ T4669] should_failslab+0x10/0x28 [ 51.706287][ T4669] slab_pre_alloc_hook+0x64/0xec [ 51.706972][ T4669] __kmalloc_node+0xb8/0x520 [ 51.707680][ T4669] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 51.708580][ T4669] nbd_start_device+0x14c/0xb40 [ 51.709427][ T4669] nbd_ioctl+0x514/0xc50 [ 51.710139][ T4669] blkdev_ioctl+0x5f8/0xbb8 [ 51.710854][ T4669] block_ioctl+0xa4/0x118 [ 51.711527][ T4669] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.712347][ T4669] invoke_syscall+0x98/0x2b8 [ 51.713086][ T4669] el0_svc_common+0x138/0x258 [ 51.713885][ T4669] do_el0_svc+0x58/0x14c [ 51.714560][ T4669] el0_svc+0x78/0x1e0 [ 51.715209][ T4669] el0t_64_sync_handler+0xcc/0xe4 [ 51.715996][ T4669] el0t_64_sync+0x1a0/0x1a4 [ 51.718330][ T4668] block nbd0: shutting down sockets [ 51.856388][ T4671] FAULT_INJECTION: forcing a failure. [ 51.856388][ T4671] name failslab, interval 1, probability 0, space 0, times 0 [ 51.858332][ T4671] CPU: 1 PID: 4671 Comm: syz-executor.0 Not tainted syzkaller #0 [ 51.859428][ T4671] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 51.860796][ T4671] Call trace: [ 51.861276][ T4671] dump_backtrace+0x0/0x43c [ 51.861921][ T4671] show_stack+0x2c/0x3c [ 51.862493][ T4671] __dump_stack+0x30/0x40 [ 51.863113][ T4671] dump_stack_lvl+0xf8/0x160 [ 51.863787][ T4671] dump_stack+0x1c/0x5c [ 51.864465][ T4671] should_fail+0x3c0/0x51c [ 51.865178][ T4671] __should_failslab+0xbc/0x10c [ 51.865975][ T4671] should_failslab+0x10/0x28 [ 51.866754][ T4671] slab_pre_alloc_hook+0x64/0xec [ 51.867558][ T4671] __kmalloc_node+0xb8/0x520 [ 51.868230][ T4671] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 51.869041][ T4671] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 51.869889][ T4671] nbd_start_device+0x14c/0xb40 [ 51.870604][ T4671] nbd_ioctl+0x514/0xc50 [ 51.871237][ T4671] blkdev_ioctl+0x5f8/0xbb8 [ 51.871952][ T4671] block_ioctl+0xa4/0x118 [ 51.872543][ T4671] __arm64_sys_ioctl+0x14c/0x1c8 [ 51.873269][ T4671] invoke_syscall+0x98/0x2b8 [ 51.873926][ T4671] el0_svc_common+0x138/0x258 [ 51.874670][ T4671] do_el0_svc+0x58/0x14c [ 51.875259][ T4671] el0_svc+0x78/0x1e0 [ 51.875848][ T4671] el0t_64_sync_handler+0xcc/0xe4 [ 51.876652][ T4671] el0t_64_sync+0x1a0/0x1a4 [ 51.877435][ T4671] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 51.881222][ T4672] block nbd0: shutting down sockets [ 52.016199][ T4674] FAULT_INJECTION: forcing a failure. [ 52.016199][ T4674] name failslab, interval 1, probability 0, space 0, times 0 [ 52.018200][ T4674] CPU: 1 PID: 4674 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.019454][ T4674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.020955][ T4674] Call trace: [ 52.021443][ T4674] dump_backtrace+0x0/0x43c [ 52.022152][ T4674] show_stack+0x2c/0x3c [ 52.022869][ T4674] __dump_stack+0x30/0x40 [ 52.023491][ T4674] dump_stack_lvl+0xf8/0x160 [ 52.024184][ T4674] dump_stack+0x1c/0x5c [ 52.024817][ T4674] should_fail+0x3c0/0x51c [ 52.025481][ T4674] __should_failslab+0xbc/0x10c [ 52.026162][ T4674] should_failslab+0x10/0x28 [ 52.026839][ T4674] slab_pre_alloc_hook+0x64/0xec [ 52.027536][ T4674] __kmalloc_node+0xb8/0x520 [ 52.028195][ T4674] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 52.029028][ T4674] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 52.029867][ T4674] nbd_start_device+0x14c/0xb40 [ 52.030578][ T4674] nbd_ioctl+0x514/0xc50 [ 52.031224][ T4674] blkdev_ioctl+0x5f8/0xbb8 [ 52.031900][ T4674] block_ioctl+0xa4/0x118 [ 52.032576][ T4674] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.033350][ T4674] invoke_syscall+0x98/0x2b8 [ 52.034089][ T4674] el0_svc_common+0x138/0x258 [ 52.034810][ T4674] do_el0_svc+0x58/0x14c [ 52.035466][ T4674] el0_svc+0x78/0x1e0 [ 52.036117][ T4674] el0t_64_sync_handler+0xcc/0xe4 [ 52.036932][ T4674] el0t_64_sync+0x1a0/0x1a4 [ 52.038193][ T4674] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 52.040783][ T4675] block nbd0: shutting down sockets [ 52.044809][ T4071] Bluetooth: hci0: command 0x041b tx timeout [ 52.166214][ T4677] FAULT_INJECTION: forcing a failure. [ 52.166214][ T4677] name failslab, interval 1, probability 0, space 0, times 0 [ 52.168322][ T4677] CPU: 0 PID: 4677 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.169474][ T4677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.170838][ T4677] Call trace: [ 52.171313][ T4677] dump_backtrace+0x0/0x43c [ 52.172040][ T4677] show_stack+0x2c/0x3c [ 52.172657][ T4677] __dump_stack+0x30/0x40 [ 52.173276][ T4677] dump_stack_lvl+0xf8/0x160 [ 52.173903][ T4677] dump_stack+0x1c/0x5c [ 52.174478][ T4677] should_fail+0x3c0/0x51c [ 52.175137][ T4677] __should_failslab+0xbc/0x10c [ 52.175875][ T4677] should_failslab+0x10/0x28 [ 52.176553][ T4677] slab_pre_alloc_hook+0x64/0xec [ 52.177276][ T4677] __kmalloc_node+0xb8/0x520 [ 52.177922][ T4677] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 52.178811][ T4677] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 52.179701][ T4677] nbd_start_device+0x14c/0xb40 [ 52.180418][ T4677] nbd_ioctl+0x514/0xc50 [ 52.181091][ T4677] blkdev_ioctl+0x5f8/0xbb8 [ 52.181779][ T4677] block_ioctl+0xa4/0x118 [ 52.182446][ T4677] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.183181][ T4677] invoke_syscall+0x98/0x2b8 [ 52.183873][ T4677] el0_svc_common+0x138/0x258 [ 52.184585][ T4677] do_el0_svc+0x58/0x14c [ 52.185260][ T4677] el0_svc+0x78/0x1e0 [ 52.185884][ T4677] el0t_64_sync_handler+0xcc/0xe4 [ 52.186683][ T4677] el0t_64_sync+0x1a0/0x1a4 [ 52.188071][ T4677] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 52.191849][ T4678] block nbd0: shutting down sockets [ 52.306848][ T4680] FAULT_INJECTION: forcing a failure. [ 52.306848][ T4680] name failslab, interval 1, probability 0, space 0, times 0 [ 52.308996][ T4680] CPU: 1 PID: 4680 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.310300][ T4680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.312019][ T4680] Call trace: [ 52.312551][ T4680] dump_backtrace+0x0/0x43c [ 52.313294][ T4680] show_stack+0x2c/0x3c [ 52.314022][ T4680] __dump_stack+0x30/0x40 [ 52.314753][ T4680] dump_stack_lvl+0xf8/0x160 [ 52.315441][ T4680] dump_stack+0x1c/0x5c [ 52.316151][ T4680] should_fail+0x3c0/0x51c [ 52.316921][ T4680] __should_failslab+0xbc/0x10c [ 52.317730][ T4680] should_failslab+0x10/0x28 [ 52.318458][ T4680] slab_pre_alloc_hook+0x64/0xec [ 52.319259][ T4680] __kmalloc_node+0xb8/0x520 [ 52.320025][ T4680] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 52.320905][ T4680] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 52.321804][ T4680] nbd_start_device+0x14c/0xb40 [ 52.322553][ T4680] nbd_ioctl+0x514/0xc50 [ 52.323237][ T4680] blkdev_ioctl+0x5f8/0xbb8 [ 52.323940][ T4680] block_ioctl+0xa4/0x118 [ 52.324640][ T4680] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.325471][ T4680] invoke_syscall+0x98/0x2b8 [ 52.326224][ T4680] el0_svc_common+0x138/0x258 [ 52.326969][ T4680] do_el0_svc+0x58/0x14c [ 52.327652][ T4680] el0_svc+0x78/0x1e0 [ 52.328337][ T4680] el0t_64_sync_handler+0xcc/0xe4 [ 52.329160][ T4680] el0t_64_sync+0x1a0/0x1a4 [ 52.330511][ T4680] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 52.333488][ T4681] block nbd0: shutting down sockets [ 52.466417][ T4683] FAULT_INJECTION: forcing a failure. [ 52.466417][ T4683] name failslab, interval 1, probability 0, space 0, times 0 [ 52.468369][ T4683] CPU: 1 PID: 4683 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.469678][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.471184][ T4683] Call trace: [ 52.471683][ T4683] dump_backtrace+0x0/0x43c [ 52.472437][ T4683] show_stack+0x2c/0x3c [ 52.473070][ T4683] __dump_stack+0x30/0x40 [ 52.473769][ T4683] dump_stack_lvl+0xf8/0x160 [ 52.474485][ T4683] dump_stack+0x1c/0x5c [ 52.475160][ T4683] should_fail+0x3c0/0x51c [ 52.475886][ T4683] __should_failslab+0xbc/0x10c [ 52.476656][ T4683] should_failslab+0x10/0x28 [ 52.477371][ T4683] slab_pre_alloc_hook+0x64/0xec [ 52.478097][ T4683] __kmalloc_node+0xb8/0x520 [ 52.478844][ T4683] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 52.479747][ T4683] nbd_start_device+0x14c/0xb40 [ 52.480515][ T4683] nbd_ioctl+0x514/0xc50 [ 52.481231][ T4683] blkdev_ioctl+0x5f8/0xbb8 [ 52.481924][ T4683] block_ioctl+0xa4/0x118 [ 52.482570][ T4683] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.483381][ T4683] invoke_syscall+0x98/0x2b8 [ 52.484104][ T4683] el0_svc_common+0x138/0x258 [ 52.484914][ T4683] do_el0_svc+0x58/0x14c [ 52.485604][ T4683] el0_svc+0x78/0x1e0 [ 52.486195][ T4683] el0t_64_sync_handler+0xcc/0xe4 [ 52.486925][ T4683] el0t_64_sync+0x1a0/0x1a4 [ 52.489509][ T4684] block nbd0: shutting down sockets [ 52.656147][ T4686] FAULT_INJECTION: forcing a failure. [ 52.656147][ T4686] name failslab, interval 1, probability 0, space 0, times 0 [ 52.658296][ T4686] CPU: 1 PID: 4686 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.659572][ T4686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.661131][ T4686] Call trace: [ 52.661618][ T4686] dump_backtrace+0x0/0x43c [ 52.662372][ T4686] show_stack+0x2c/0x3c [ 52.663025][ T4686] __dump_stack+0x30/0x40 [ 52.663705][ T4686] dump_stack_lvl+0xf8/0x160 [ 52.664483][ T4686] dump_stack+0x1c/0x5c [ 52.665182][ T4686] should_fail+0x3c0/0x51c [ 52.665875][ T4686] __should_failslab+0xbc/0x10c [ 52.666640][ T4686] should_failslab+0x10/0x28 [ 52.667389][ T4686] slab_pre_alloc_hook+0x64/0xec [ 52.668200][ T4686] __kmalloc_node+0xb8/0x520 [ 52.668922][ T4686] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 52.669836][ T4686] nbd_start_device+0x14c/0xb40 [ 52.670580][ T4686] nbd_ioctl+0x514/0xc50 [ 52.671228][ T4686] blkdev_ioctl+0x5f8/0xbb8 [ 52.671962][ T4686] block_ioctl+0xa4/0x118 [ 52.672656][ T4686] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.673457][ T4686] invoke_syscall+0x98/0x2b8 [ 52.674193][ T4686] el0_svc_common+0x138/0x258 [ 52.674902][ T4686] do_el0_svc+0x58/0x14c [ 52.675569][ T4686] el0_svc+0x78/0x1e0 [ 52.676161][ T4686] el0t_64_sync_handler+0xcc/0xe4 [ 52.676945][ T4686] el0t_64_sync+0x1a0/0x1a4 [ 52.679692][ T4687] block nbd0: shutting down sockets [ 52.816126][ T4689] FAULT_INJECTION: forcing a failure. [ 52.816126][ T4689] name failslab, interval 1, probability 0, space 0, times 0 [ 52.818115][ T4689] CPU: 1 PID: 4689 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.819269][ T4689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.820943][ T4689] Call trace: [ 52.821431][ T4689] dump_backtrace+0x0/0x43c [ 52.822093][ T4689] show_stack+0x2c/0x3c [ 52.822719][ T4689] __dump_stack+0x30/0x40 [ 52.823328][ T4689] dump_stack_lvl+0xf8/0x160 [ 52.823999][ T4689] dump_stack+0x1c/0x5c [ 52.824625][ T4689] should_fail+0x3c0/0x51c [ 52.825310][ T4689] __should_failslab+0xbc/0x10c [ 52.826095][ T4689] should_failslab+0x10/0x28 [ 52.826821][ T4689] slab_pre_alloc_hook+0x64/0xec [ 52.827613][ T4689] __kmalloc_node+0xb8/0x520 [ 52.828335][ T4689] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 52.829245][ T4689] nbd_start_device+0x14c/0xb40 [ 52.830038][ T4689] nbd_ioctl+0x514/0xc50 [ 52.830737][ T4689] blkdev_ioctl+0x5f8/0xbb8 [ 52.831467][ T4689] block_ioctl+0xa4/0x118 [ 52.832196][ T4689] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.832985][ T4689] invoke_syscall+0x98/0x2b8 [ 52.833729][ T4689] el0_svc_common+0x138/0x258 [ 52.834489][ T4689] do_el0_svc+0x58/0x14c [ 52.835172][ T4689] el0_svc+0x78/0x1e0 [ 52.835787][ T4689] el0t_64_sync_handler+0xcc/0xe4 [ 52.836589][ T4689] el0t_64_sync+0x1a0/0x1a4 [ 52.839963][ T4690] block nbd0: shutting down sockets [ 52.976540][ T4692] FAULT_INJECTION: forcing a failure. [ 52.976540][ T4692] name failslab, interval 1, probability 0, space 0, times 0 [ 52.978583][ T4692] CPU: 1 PID: 4692 Comm: syz-executor.0 Not tainted syzkaller #0 [ 52.979664][ T4692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 52.981277][ T4692] Call trace: [ 52.981799][ T4692] dump_backtrace+0x0/0x43c [ 52.982510][ T4692] show_stack+0x2c/0x3c [ 52.983160][ T4692] __dump_stack+0x30/0x40 [ 52.983847][ T4692] dump_stack_lvl+0xf8/0x160 [ 52.984643][ T4692] dump_stack+0x1c/0x5c [ 52.985361][ T4692] should_fail+0x3c0/0x51c [ 52.986050][ T4692] __should_failslab+0xbc/0x10c [ 52.986868][ T4692] should_failslab+0x10/0x28 [ 52.987638][ T4692] slab_pre_alloc_hook+0x64/0xec [ 52.988417][ T4692] __kmalloc_node+0xb8/0x520 [ 52.989229][ T4692] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 52.990168][ T4692] nbd_start_device+0x14c/0xb40 [ 52.990898][ T4692] nbd_ioctl+0x514/0xc50 [ 52.991564][ T4692] blkdev_ioctl+0x5f8/0xbb8 [ 52.992237][ T4692] block_ioctl+0xa4/0x118 [ 52.992944][ T4692] __arm64_sys_ioctl+0x14c/0x1c8 [ 52.993785][ T4692] invoke_syscall+0x98/0x2b8 [ 52.994576][ T4692] el0_svc_common+0x138/0x258 [ 52.995384][ T4692] do_el0_svc+0x58/0x14c [ 52.996126][ T4692] el0_svc+0x78/0x1e0 [ 52.996747][ T4692] el0t_64_sync_handler+0xcc/0xe4 [ 52.997514][ T4692] el0t_64_sync+0x1a0/0x1a4 [ 53.003749][ T4693] block nbd0: shutting down sockets 1970/01/01 00:00:52 executed programs: 23 [ 53.176225][ T4696] FAULT_INJECTION: forcing a failure. [ 53.176225][ T4696] name failslab, interval 1, probability 0, space 0, times 0 [ 53.178149][ T4696] CPU: 1 PID: 4696 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.179263][ T4696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.180773][ T4696] Call trace: [ 53.181298][ T4696] dump_backtrace+0x0/0x43c [ 53.182022][ T4696] show_stack+0x2c/0x3c [ 53.182688][ T4696] __dump_stack+0x30/0x40 [ 53.183312][ T4696] dump_stack_lvl+0xf8/0x160 [ 53.183959][ T4696] dump_stack+0x1c/0x5c [ 53.184583][ T4696] should_fail+0x3c0/0x51c [ 53.185193][ T4696] __should_failslab+0xbc/0x10c [ 53.185880][ T4696] should_failslab+0x10/0x28 [ 53.186581][ T4696] slab_pre_alloc_hook+0x64/0xec [ 53.187380][ T4696] __kmalloc_node+0xb8/0x520 [ 53.188019][ T4696] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 53.188825][ T4696] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 53.189720][ T4696] nbd_start_device+0x14c/0xb40 [ 53.190430][ T4696] nbd_ioctl+0x514/0xc50 [ 53.191042][ T4696] blkdev_ioctl+0x5f8/0xbb8 [ 53.191722][ T4696] block_ioctl+0xa4/0x118 [ 53.192341][ T4696] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.193035][ T4696] invoke_syscall+0x98/0x2b8 [ 53.193719][ T4696] el0_svc_common+0x138/0x258 [ 53.194461][ T4696] do_el0_svc+0x58/0x14c [ 53.195191][ T4696] el0_svc+0x78/0x1e0 [ 53.195846][ T4696] el0t_64_sync_handler+0xcc/0xe4 [ 53.196692][ T4696] el0t_64_sync+0x1a0/0x1a4 [ 53.197887][ T4696] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 53.200502][ T4695] block nbd0: shutting down sockets [ 53.366169][ T4698] FAULT_INJECTION: forcing a failure. [ 53.366169][ T4698] name failslab, interval 1, probability 0, space 0, times 0 [ 53.368356][ T4698] CPU: 1 PID: 4698 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.369663][ T4698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.371236][ T4698] Call trace: [ 53.371706][ T4698] dump_backtrace+0x0/0x43c [ 53.372453][ T4698] show_stack+0x2c/0x3c [ 53.373048][ T4698] __dump_stack+0x30/0x40 [ 53.373732][ T4698] dump_stack_lvl+0xf8/0x160 [ 53.374449][ T4698] dump_stack+0x1c/0x5c [ 53.375127][ T4698] should_fail+0x3c0/0x51c [ 53.375813][ T4698] __should_failslab+0xbc/0x10c [ 53.376576][ T4698] should_failslab+0x10/0x28 [ 53.377257][ T4698] slab_pre_alloc_hook+0x64/0xec [ 53.378085][ T4698] __kmalloc_node+0xb8/0x520 [ 53.378830][ T4698] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 53.379719][ T4698] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 53.380629][ T4698] nbd_start_device+0x14c/0xb40 [ 53.381369][ T4698] nbd_ioctl+0x514/0xc50 [ 53.382000][ T4698] blkdev_ioctl+0x5f8/0xbb8 [ 53.382683][ T4698] block_ioctl+0xa4/0x118 [ 53.383336][ T4698] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.384061][ T4698] invoke_syscall+0x98/0x2b8 [ 53.384798][ T4698] el0_svc_common+0x138/0x258 [ 53.385584][ T4698] do_el0_svc+0x58/0x14c [ 53.386269][ T4698] el0_svc+0x78/0x1e0 [ 53.386883][ T4698] el0t_64_sync_handler+0xcc/0xe4 [ 53.387679][ T4698] el0t_64_sync+0x1a0/0x1a4 [ 53.388540][ T4698] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 53.391138][ T4699] block nbd0: shutting down sockets [ 53.526524][ T4701] FAULT_INJECTION: forcing a failure. [ 53.526524][ T4701] name failslab, interval 1, probability 0, space 0, times 0 [ 53.528756][ T4701] CPU: 1 PID: 4701 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.530019][ T4701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.531558][ T4701] Call trace: [ 53.532042][ T4701] dump_backtrace+0x0/0x43c [ 53.532757][ T4701] show_stack+0x2c/0x3c [ 53.533436][ T4701] __dump_stack+0x30/0x40 [ 53.534095][ T4701] dump_stack_lvl+0xf8/0x160 [ 53.534855][ T4701] dump_stack+0x1c/0x5c [ 53.535445][ T4701] should_fail+0x3c0/0x51c [ 53.536071][ T4701] __should_failslab+0xbc/0x10c [ 53.536759][ T4701] should_failslab+0x10/0x28 [ 53.537407][ T4701] slab_pre_alloc_hook+0x64/0xec [ 53.538117][ T4701] __kmalloc_node+0xb8/0x520 [ 53.538807][ T4701] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 53.539631][ T4701] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 53.540509][ T4701] nbd_start_device+0x14c/0xb40 [ 53.541286][ T4701] nbd_ioctl+0x514/0xc50 [ 53.541954][ T4701] blkdev_ioctl+0x5f8/0xbb8 [ 53.542656][ T4701] block_ioctl+0xa4/0x118 [ 53.543418][ T4701] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.544197][ T4701] invoke_syscall+0x98/0x2b8 [ 53.544987][ T4701] el0_svc_common+0x138/0x258 [ 53.545761][ T4701] do_el0_svc+0x58/0x14c [ 53.546427][ T4701] el0_svc+0x78/0x1e0 [ 53.547043][ T4701] el0t_64_sync_handler+0xcc/0xe4 [ 53.547819][ T4701] el0t_64_sync+0x1a0/0x1a4 [ 53.549079][ T4701] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 53.551974][ T4702] block nbd0: shutting down sockets [ 53.696168][ T4704] FAULT_INJECTION: forcing a failure. [ 53.696168][ T4704] name failslab, interval 1, probability 0, space 0, times 0 [ 53.698335][ T4704] CPU: 1 PID: 4704 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.699437][ T4704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.700856][ T4704] Call trace: [ 53.701284][ T4704] dump_backtrace+0x0/0x43c [ 53.701971][ T4704] show_stack+0x2c/0x3c [ 53.702537][ T4704] __dump_stack+0x30/0x40 [ 53.703151][ T4704] dump_stack_lvl+0xf8/0x160 [ 53.703735][ T4704] dump_stack+0x1c/0x5c [ 53.704277][ T4704] should_fail+0x3c0/0x51c [ 53.704889][ T4704] __should_failslab+0xbc/0x10c [ 53.705704][ T4704] should_failslab+0x10/0x28 [ 53.706443][ T4704] slab_pre_alloc_hook+0x64/0xec [ 53.707270][ T4704] __kmalloc_node+0xb8/0x520 [ 53.708005][ T4704] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 53.708810][ T4704] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 53.709690][ T4704] nbd_start_device+0x14c/0xb40 [ 53.710420][ T4704] nbd_ioctl+0x514/0xc50 [ 53.711131][ T4704] blkdev_ioctl+0x5f8/0xbb8 [ 53.711848][ T4704] block_ioctl+0xa4/0x118 [ 53.712556][ T4704] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.713376][ T4704] invoke_syscall+0x98/0x2b8 [ 53.714079][ T4704] el0_svc_common+0x138/0x258 [ 53.714840][ T4704] do_el0_svc+0x58/0x14c [ 53.715536][ T4704] el0_svc+0x78/0x1e0 [ 53.716192][ T4704] el0t_64_sync_handler+0xcc/0xe4 [ 53.716948][ T4704] el0t_64_sync+0x1a0/0x1a4 [ 53.718039][ T4704] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 53.720724][ T4705] block nbd0: shutting down sockets [ 53.846160][ T4707] FAULT_INJECTION: forcing a failure. [ 53.846160][ T4707] name failslab, interval 1, probability 0, space 0, times 0 [ 53.848121][ T4707] CPU: 1 PID: 4707 Comm: syz-executor.0 Not tainted syzkaller #0 [ 53.849278][ T4707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 53.850704][ T4707] Call trace: [ 53.851146][ T4707] dump_backtrace+0x0/0x43c [ 53.851813][ T4707] show_stack+0x2c/0x3c [ 53.852401][ T4707] __dump_stack+0x30/0x40 [ 53.852984][ T4707] dump_stack_lvl+0xf8/0x160 [ 53.853648][ T4707] dump_stack+0x1c/0x5c [ 53.854286][ T4707] should_fail+0x3c0/0x51c [ 53.854939][ T4707] __should_failslab+0xbc/0x10c [ 53.855653][ T4707] should_failslab+0x10/0x28 [ 53.856363][ T4707] slab_pre_alloc_hook+0x64/0xec [ 53.857130][ T4707] __kmalloc_node+0xb8/0x520 [ 53.857804][ T4707] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 53.858642][ T4707] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 53.859523][ T4707] nbd_start_device+0x14c/0xb40 [ 53.860273][ T4707] nbd_ioctl+0x514/0xc50 [ 53.860908][ T4707] blkdev_ioctl+0x5f8/0xbb8 [ 53.861553][ T4707] block_ioctl+0xa4/0x118 [ 53.862277][ T4707] __arm64_sys_ioctl+0x14c/0x1c8 [ 53.863022][ T4707] invoke_syscall+0x98/0x2b8 [ 53.863818][ T4707] el0_svc_common+0x138/0x258 [ 53.864578][ T4707] do_el0_svc+0x58/0x14c [ 53.865243][ T4707] el0_svc+0x78/0x1e0 [ 53.865925][ T4707] el0t_64_sync_handler+0xcc/0xe4 [ 53.866687][ T4707] el0t_64_sync+0x1a0/0x1a4 [ 53.867847][ T4707] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 53.870536][ T4708] block nbd0: shutting down sockets [ 54.006087][ T4710] FAULT_INJECTION: forcing a failure. [ 54.006087][ T4710] name failslab, interval 1, probability 0, space 0, times 0 [ 54.008001][ T4710] CPU: 0 PID: 4710 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.009178][ T4710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.010738][ T4710] Call trace: [ 54.011228][ T4710] dump_backtrace+0x0/0x43c [ 54.011918][ T4710] show_stack+0x2c/0x3c [ 54.012489][ T4710] __dump_stack+0x30/0x40 [ 54.013162][ T4710] dump_stack_lvl+0xf8/0x160 [ 54.013880][ T4710] dump_stack+0x1c/0x5c [ 54.014601][ T4710] should_fail+0x3c0/0x51c [ 54.015271][ T4710] __should_failslab+0xbc/0x10c [ 54.016008][ T4710] should_failslab+0x10/0x28 [ 54.016757][ T4710] slab_pre_alloc_hook+0x64/0xec [ 54.017618][ T4710] __kmalloc_node+0xb8/0x520 [ 54.018330][ T4710] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 54.019108][ T4710] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 54.019985][ T4710] nbd_start_device+0x14c/0xb40 [ 54.020791][ T4710] nbd_ioctl+0x514/0xc50 [ 54.021468][ T4710] blkdev_ioctl+0x5f8/0xbb8 [ 54.022165][ T4710] block_ioctl+0xa4/0x118 [ 54.022785][ T4710] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.023503][ T4710] invoke_syscall+0x98/0x2b8 [ 54.024210][ T4710] el0_svc_common+0x138/0x258 [ 54.024916][ T4710] do_el0_svc+0x58/0x14c [ 54.025514][ T4710] el0_svc+0x78/0x1e0 [ 54.026156][ T4710] el0t_64_sync_handler+0xcc/0xe4 [ 54.026895][ T4710] el0t_64_sync+0x1a0/0x1a4 [ 54.028569][ T4710] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 54.031320][ T4711] block nbd0: shutting down sockets [ 54.105365][ T4071] Bluetooth: hci0: command 0x040f tx timeout [ 54.176136][ T4713] FAULT_INJECTION: forcing a failure. [ 54.176136][ T4713] name failslab, interval 1, probability 0, space 0, times 0 [ 54.178103][ T4713] CPU: 0 PID: 4713 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.179277][ T4713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.180668][ T4713] Call trace: [ 54.181155][ T4713] dump_backtrace+0x0/0x43c [ 54.181881][ T4713] show_stack+0x2c/0x3c [ 54.182552][ T4713] __dump_stack+0x30/0x40 [ 54.183216][ T4713] dump_stack_lvl+0xf8/0x160 [ 54.183881][ T4713] dump_stack+0x1c/0x5c [ 54.184468][ T4713] should_fail+0x3c0/0x51c [ 54.185179][ T4713] __should_failslab+0xbc/0x10c [ 54.185960][ T4713] should_failslab+0x10/0x28 [ 54.186679][ T4713] slab_pre_alloc_hook+0x64/0xec [ 54.187515][ T4713] __kmalloc_node+0xb8/0x520 [ 54.188238][ T4713] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 54.189170][ T4713] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 54.190092][ T4713] nbd_start_device+0x14c/0xb40 [ 54.190814][ T4713] nbd_ioctl+0x514/0xc50 [ 54.191451][ T4713] blkdev_ioctl+0x5f8/0xbb8 [ 54.192241][ T4713] block_ioctl+0xa4/0x118 [ 54.192973][ T4713] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.193766][ T4713] invoke_syscall+0x98/0x2b8 [ 54.194534][ T4713] el0_svc_common+0x138/0x258 [ 54.195225][ T4713] do_el0_svc+0x58/0x14c [ 54.195834][ T4713] el0_svc+0x78/0x1e0 [ 54.196446][ T4713] el0t_64_sync_handler+0xcc/0xe4 [ 54.197256][ T4713] el0t_64_sync+0x1a0/0x1a4 [ 54.198538][ T4713] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 54.201677][ T4714] block nbd0: shutting down sockets [ 54.346666][ T4716] FAULT_INJECTION: forcing a failure. [ 54.346666][ T4716] name failslab, interval 1, probability 0, space 0, times 0 [ 54.348720][ T4716] CPU: 0 PID: 4716 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.349897][ T4716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.351480][ T4716] Call trace: [ 54.351937][ T4716] dump_backtrace+0x0/0x43c [ 54.352580][ T4716] show_stack+0x2c/0x3c [ 54.353221][ T4716] __dump_stack+0x30/0x40 [ 54.353849][ T4716] dump_stack_lvl+0xf8/0x160 [ 54.354486][ T4716] dump_stack+0x1c/0x5c [ 54.355091][ T4716] should_fail+0x3c0/0x51c [ 54.355753][ T4716] __should_failslab+0xbc/0x10c [ 54.356624][ T4716] should_failslab+0x10/0x28 [ 54.357357][ T4716] slab_pre_alloc_hook+0x64/0xec [ 54.358146][ T4716] __kmalloc_node+0xb8/0x520 [ 54.358872][ T4716] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 54.359762][ T4716] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 54.360695][ T4716] nbd_start_device+0x14c/0xb40 [ 54.361413][ T4716] nbd_ioctl+0x514/0xc50 [ 54.362069][ T4716] blkdev_ioctl+0x5f8/0xbb8 [ 54.362749][ T4716] block_ioctl+0xa4/0x118 [ 54.363455][ T4716] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.364211][ T4716] invoke_syscall+0x98/0x2b8 [ 54.364935][ T4716] el0_svc_common+0x138/0x258 [ 54.365620][ T4716] do_el0_svc+0x58/0x14c [ 54.366249][ T4716] el0_svc+0x78/0x1e0 [ 54.366827][ T4716] el0t_64_sync_handler+0xcc/0xe4 [ 54.367588][ T4716] el0t_64_sync+0x1a0/0x1a4 [ 54.368272][ T4716] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 54.371485][ T4717] block nbd0: shutting down sockets [ 54.505034][ T4720] block nbd0: Device being setup by another task [ 54.506214][ T4719] FAULT_INJECTION: forcing a failure. [ 54.506214][ T4719] name failslab, interval 1, probability 0, space 0, times 0 [ 54.508128][ T4719] CPU: 1 PID: 4719 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.509222][ T4719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.510615][ T4719] Call trace: [ 54.511093][ T4719] dump_backtrace+0x0/0x43c [ 54.511787][ T4719] show_stack+0x2c/0x3c [ 54.512365][ T4719] __dump_stack+0x30/0x40 [ 54.513011][ T4719] dump_stack_lvl+0xf8/0x160 [ 54.513675][ T4719] dump_stack+0x1c/0x5c [ 54.514267][ T4719] should_fail+0x3c0/0x51c [ 54.514951][ T4719] __should_failslab+0xbc/0x10c [ 54.515652][ T4719] should_failslab+0x10/0x28 [ 54.516432][ T4719] slab_pre_alloc_hook+0x64/0xec [ 54.517223][ T4719] kmem_cache_alloc+0x94/0x3e4 [ 54.518002][ T4719] __d_alloc+0x3c/0x65c [ 54.518717][ T4719] d_alloc_parallel+0x80/0x1104 [ 54.519575][ T4719] __lookup_slow+0x104/0x380 [ 54.520335][ T4719] lookup_one_len+0x178/0x28c [ 54.521087][ T4719] start_creating+0x19c/0x2e0 [ 54.521888][ T4719] debugfs_create_dir+0x30/0x3f4 [ 54.522606][ T4719] nbd_start_device+0x3c8/0xb40 [ 54.523343][ T4719] nbd_ioctl+0x514/0xc50 [ 54.524060][ T4719] blkdev_ioctl+0x5f8/0xbb8 [ 54.524816][ T4719] block_ioctl+0xa4/0x118 [ 54.525522][ T4719] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.526357][ T4719] invoke_syscall+0x98/0x2b8 [ 54.527119][ T4719] el0_svc_common+0x138/0x258 [ 54.527838][ T4719] do_el0_svc+0x58/0x14c [ 54.528461][ T4719] el0_svc+0x78/0x1e0 [ 54.529024][ T4719] el0t_64_sync_handler+0xcc/0xe4 [ 54.529776][ T4719] el0t_64_sync+0x1a0/0x1a4 [ 54.531411][ T4719] block nbd0: Failed to create debugfs dir for 'nbd0' [ 54.546185][ T4720] block nbd0: shutting down sockets [ 54.676239][ T4722] FAULT_INJECTION: forcing a failure. [ 54.676239][ T4722] name failslab, interval 1, probability 0, space 0, times 0 [ 54.678180][ T4722] CPU: 0 PID: 4722 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.679354][ T4722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.680923][ T4722] Call trace: [ 54.681415][ T4722] dump_backtrace+0x0/0x43c [ 54.682142][ T4722] show_stack+0x2c/0x3c [ 54.682773][ T4722] __dump_stack+0x30/0x40 [ 54.683466][ T4722] dump_stack_lvl+0xf8/0x160 [ 54.684148][ T4722] dump_stack+0x1c/0x5c [ 54.684780][ T4722] should_fail+0x3c0/0x51c [ 54.685394][ T4722] __should_failslab+0xbc/0x10c [ 54.686072][ T4722] should_failslab+0x10/0x28 [ 54.686690][ T4722] slab_pre_alloc_hook+0x64/0xec [ 54.687528][ T4722] __kmalloc_node+0xb8/0x520 [ 54.688216][ T4722] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 54.688970][ T4722] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 54.689829][ T4722] nbd_start_device+0x14c/0xb40 [ 54.690528][ T4722] nbd_ioctl+0x514/0xc50 [ 54.691163][ T4722] blkdev_ioctl+0x5f8/0xbb8 [ 54.691826][ T4722] block_ioctl+0xa4/0x118 [ 54.692404][ T4722] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.693170][ T4722] invoke_syscall+0x98/0x2b8 [ 54.693892][ T4722] el0_svc_common+0x138/0x258 [ 54.694582][ T4722] do_el0_svc+0x58/0x14c [ 54.695207][ T4722] el0_svc+0x78/0x1e0 [ 54.695792][ T4722] el0t_64_sync_handler+0xcc/0xe4 [ 54.696577][ T4722] el0t_64_sync+0x1a0/0x1a4 [ 54.697802][ T4722] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 54.700339][ T4723] block nbd0: shutting down sockets [ 54.814729][ T4726] block nbd0: Device being setup by another task [ 54.816185][ T4725] FAULT_INJECTION: forcing a failure. [ 54.816185][ T4725] name failslab, interval 1, probability 0, space 0, times 0 [ 54.818077][ T4725] CPU: 1 PID: 4725 Comm: syz-executor.0 Not tainted syzkaller #0 [ 54.819192][ T4725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 54.820557][ T4725] Call trace: [ 54.820995][ T4725] dump_backtrace+0x0/0x43c [ 54.821581][ T4725] show_stack+0x2c/0x3c [ 54.822253][ T4725] __dump_stack+0x30/0x40 [ 54.822891][ T4725] dump_stack_lvl+0xf8/0x160 [ 54.823572][ T4725] dump_stack+0x1c/0x5c [ 54.824171][ T4725] should_fail+0x3c0/0x51c [ 54.824853][ T4725] __should_failslab+0xbc/0x10c [ 54.825652][ T4725] should_failslab+0x10/0x28 [ 54.826356][ T4725] slab_pre_alloc_hook+0x64/0xec [ 54.827184][ T4725] __kmalloc_node+0xb8/0x520 [ 54.827923][ T4725] memcg_alloc_page_obj_cgroups+0x80/0x174 [ 54.828823][ T4725] slab_post_alloc_hook+0xc0/0x408 [ 54.829621][ T4725] kmem_cache_alloc+0x1e0/0x3e4 [ 54.830333][ T4725] __d_alloc+0x3c/0x65c [ 54.830933][ T4725] d_alloc_parallel+0x80/0x1104 [ 54.831669][ T4725] __lookup_slow+0x104/0x380 [ 54.832311][ T4725] lookup_one_len+0x178/0x28c [ 54.832976][ T4725] start_creating+0x19c/0x2e0 [ 54.833696][ T4725] debugfs_create_dir+0x30/0x3f4 [ 54.834522][ T4725] nbd_start_device+0x3c8/0xb40 [ 54.835365][ T4725] nbd_ioctl+0x514/0xc50 [ 54.836026][ T4725] blkdev_ioctl+0x5f8/0xbb8 [ 54.836803][ T4725] block_ioctl+0xa4/0x118 [ 54.837482][ T4725] __arm64_sys_ioctl+0x14c/0x1c8 [ 54.838303][ T4725] invoke_syscall+0x98/0x2b8 [ 54.839071][ T4725] el0_svc_common+0x138/0x258 [ 54.839811][ T4725] do_el0_svc+0x58/0x14c [ 54.840492][ T4725] el0_svc+0x78/0x1e0 [ 54.841121][ T4725] el0t_64_sync_handler+0xcc/0xe4 [ 54.842003][ T4725] el0t_64_sync+0x1a0/0x1a4 [ 54.866785][ T4726] block nbd0: shutting down sockets [ 55.006303][ T4728] FAULT_INJECTION: forcing a failure. [ 55.006303][ T4728] name failslab, interval 1, probability 0, space 0, times 0 [ 55.008241][ T4728] CPU: 0 PID: 4728 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.009266][ T4728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.010795][ T4728] Call trace: [ 55.011313][ T4728] dump_backtrace+0x0/0x43c [ 55.011938][ T4728] show_stack+0x2c/0x3c [ 55.012577][ T4728] __dump_stack+0x30/0x40 [ 55.013226][ T4728] dump_stack_lvl+0xf8/0x160 [ 55.013922][ T4728] dump_stack+0x1c/0x5c [ 55.014485][ T4728] should_fail+0x3c0/0x51c [ 55.015165][ T4728] __should_failslab+0xbc/0x10c [ 55.015997][ T4728] should_failslab+0x10/0x28 [ 55.016702][ T4728] slab_pre_alloc_hook+0x64/0xec [ 55.017387][ T4728] __kmalloc_node+0xb8/0x520 [ 55.018038][ T4728] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 55.018785][ T4728] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 55.019703][ T4728] nbd_start_device+0x14c/0xb40 [ 55.020481][ T4728] nbd_ioctl+0x514/0xc50 [ 55.021123][ T4728] blkdev_ioctl+0x5f8/0xbb8 [ 55.021783][ T4728] block_ioctl+0xa4/0x118 [ 55.022431][ T4728] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.023144][ T4728] invoke_syscall+0x98/0x2b8 [ 55.023882][ T4728] el0_svc_common+0x138/0x258 [ 55.024710][ T4728] do_el0_svc+0x58/0x14c [ 55.025414][ T4728] el0_svc+0x78/0x1e0 [ 55.026043][ T4728] el0t_64_sync_handler+0xcc/0xe4 [ 55.026837][ T4728] el0t_64_sync+0x1a0/0x1a4 [ 55.027986][ T4728] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 55.030567][ T4729] block nbd0: shutting down sockets [ 55.144760][ T4732] block nbd0: Device being setup by another task [ 55.146247][ T4731] FAULT_INJECTION: forcing a failure. [ 55.146247][ T4731] name failslab, interval 1, probability 0, space 0, times 0 [ 55.148434][ T4731] CPU: 1 PID: 4731 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.149668][ T4731] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.151116][ T4731] Call trace: [ 55.151575][ T4731] dump_backtrace+0x0/0x43c [ 55.152235][ T4731] show_stack+0x2c/0x3c [ 55.152844][ T4731] __dump_stack+0x30/0x40 [ 55.153482][ T4731] dump_stack_lvl+0xf8/0x160 [ 55.154186][ T4731] dump_stack+0x1c/0x5c [ 55.154852][ T4731] should_fail+0x3c0/0x51c [ 55.155538][ T4731] __should_failslab+0xbc/0x10c [ 55.156290][ T4731] should_failslab+0x10/0x28 [ 55.157052][ T4731] slab_pre_alloc_hook+0x64/0xec [ 55.157821][ T4731] __kmalloc_node+0xb8/0x520 [ 55.158530][ T4731] memcg_alloc_page_obj_cgroups+0x80/0x174 [ 55.159438][ T4731] slab_post_alloc_hook+0xc0/0x408 [ 55.160237][ T4731] kmem_cache_alloc+0x1e0/0x3e4 [ 55.161064][ T4731] __d_alloc+0x3c/0x65c [ 55.161722][ T4731] d_alloc_parallel+0x80/0x1104 [ 55.162489][ T4731] __lookup_slow+0x104/0x380 [ 55.163210][ T4731] lookup_one_len+0x178/0x28c [ 55.163878][ T4731] start_creating+0x19c/0x2e0 [ 55.164614][ T4731] debugfs_create_dir+0x30/0x3f4 [ 55.165419][ T4731] nbd_start_device+0x3c8/0xb40 [ 55.166161][ T4731] nbd_ioctl+0x514/0xc50 [ 55.166799][ T4731] blkdev_ioctl+0x5f8/0xbb8 [ 55.167514][ T4731] block_ioctl+0xa4/0x118 [ 55.168114][ T4731] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.168896][ T4731] invoke_syscall+0x98/0x2b8 [ 55.169599][ T4731] el0_svc_common+0x138/0x258 [ 55.170339][ T4731] do_el0_svc+0x58/0x14c [ 55.171023][ T4731] el0_svc+0x78/0x1e0 [ 55.171667][ T4731] el0t_64_sync_handler+0xcc/0xe4 [ 55.172434][ T4731] el0t_64_sync+0x1a0/0x1a4 [ 55.197207][ T4732] block nbd0: shutting down sockets [ 55.326615][ T4734] FAULT_INJECTION: forcing a failure. [ 55.326615][ T4734] name failslab, interval 1, probability 0, space 0, times 0 [ 55.328621][ T4734] CPU: 1 PID: 4734 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.329715][ T4734] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.331189][ T4734] Call trace: [ 55.331691][ T4734] dump_backtrace+0x0/0x43c [ 55.332363][ T4734] show_stack+0x2c/0x3c [ 55.333047][ T4734] __dump_stack+0x30/0x40 [ 55.333684][ T4734] dump_stack_lvl+0xf8/0x160 [ 55.334331][ T4734] dump_stack+0x1c/0x5c [ 55.334960][ T4734] should_fail+0x3c0/0x51c [ 55.335688][ T4734] __should_failslab+0xbc/0x10c [ 55.336494][ T4734] should_failslab+0x10/0x28 [ 55.337201][ T4734] slab_pre_alloc_hook+0x64/0xec [ 55.337984][ T4734] __kmalloc_node+0xb8/0x520 [ 55.338705][ T4734] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 55.339543][ T4734] nbd_start_device+0x14c/0xb40 [ 55.340289][ T4734] nbd_ioctl+0x514/0xc50 [ 55.340979][ T4734] blkdev_ioctl+0x5f8/0xbb8 [ 55.341754][ T4734] block_ioctl+0xa4/0x118 [ 55.342492][ T4734] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.343287][ T4734] invoke_syscall+0x98/0x2b8 [ 55.344037][ T4734] el0_svc_common+0x138/0x258 [ 55.344785][ T4734] do_el0_svc+0x58/0x14c [ 55.345521][ T4734] el0_svc+0x78/0x1e0 [ 55.346186][ T4734] el0t_64_sync_handler+0xcc/0xe4 [ 55.346918][ T4734] el0t_64_sync+0x1a0/0x1a4 [ 55.349989][ T4735] block nbd0: shutting down sockets [ 55.506231][ T4738] FAULT_INJECTION: forcing a failure. [ 55.506231][ T4738] name failslab, interval 1, probability 0, space 0, times 0 [ 55.508238][ T4738] CPU: 1 PID: 4738 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.509381][ T4738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.510872][ T4738] Call trace: [ 55.511313][ T4738] dump_backtrace+0x0/0x43c [ 55.511997][ T4738] show_stack+0x2c/0x3c [ 55.512588][ T4738] __dump_stack+0x30/0x40 [ 55.513227][ T4738] dump_stack_lvl+0xf8/0x160 [ 55.513920][ T4738] dump_stack+0x1c/0x5c [ 55.514515][ T4738] should_fail+0x3c0/0x51c [ 55.515142][ T4738] __should_failslab+0xbc/0x10c [ 55.515914][ T4738] should_failslab+0x10/0x28 [ 55.516610][ T4738] slab_pre_alloc_hook+0x64/0xec [ 55.517286][ T4738] __kmalloc_node+0xb8/0x520 [ 55.517923][ T4738] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 55.518914][ T4738] nbd_start_device+0x14c/0xb40 [ 55.519723][ T4738] nbd_ioctl+0x514/0xc50 [ 55.520405][ T4738] blkdev_ioctl+0x5f8/0xbb8 [ 55.521125][ T4738] block_ioctl+0xa4/0x118 [ 55.521782][ T4738] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.522490][ T4738] invoke_syscall+0x98/0x2b8 [ 55.523184][ T4738] el0_svc_common+0x138/0x258 [ 55.523834][ T4738] do_el0_svc+0x58/0x14c [ 55.524445][ T4738] el0_svc+0x78/0x1e0 [ 55.525002][ T4738] el0t_64_sync_handler+0xcc/0xe4 [ 55.525690][ T4738] el0t_64_sync+0x1a0/0x1a4 [ 55.528731][ T4737] block nbd0: shutting down sockets [ 55.664736][ T4741] block nbd0: Device being setup by another task [ 55.666075][ T4740] FAULT_INJECTION: forcing a failure. [ 55.666075][ T4740] name failslab, interval 1, probability 0, space 0, times 0 [ 55.667940][ T4740] CPU: 1 PID: 4740 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.669170][ T4740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.670776][ T4740] Call trace: [ 55.671299][ T4740] dump_backtrace+0x0/0x43c [ 55.671942][ T4740] show_stack+0x2c/0x3c [ 55.672528][ T4740] __dump_stack+0x30/0x40 [ 55.673140][ T4740] dump_stack_lvl+0xf8/0x160 [ 55.673804][ T4740] dump_stack+0x1c/0x5c [ 55.674486][ T4740] should_fail+0x3c0/0x51c [ 55.675244][ T4740] __should_failslab+0xbc/0x10c [ 55.676048][ T4740] should_failslab+0x10/0x28 [ 55.676756][ T4740] slab_pre_alloc_hook+0x64/0xec [ 55.677610][ T4740] kmem_cache_alloc+0x94/0x3e4 [ 55.678447][ T4740] new_inode_pseudo+0x10c/0x1fc [ 55.679209][ T4740] new_inode+0x38/0x174 [ 55.679927][ T4740] debugfs_create_dir+0xec/0x3f4 [ 55.680753][ T4740] nbd_start_device+0x3c8/0xb40 [ 55.681546][ T4740] nbd_ioctl+0x514/0xc50 [ 55.682262][ T4740] blkdev_ioctl+0x5f8/0xbb8 [ 55.682992][ T4740] block_ioctl+0xa4/0x118 [ 55.683677][ T4740] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.684481][ T4740] invoke_syscall+0x98/0x2b8 [ 55.685174][ T4740] el0_svc_common+0x138/0x258 [ 55.685931][ T4740] do_el0_svc+0x58/0x14c [ 55.686579][ T4740] el0_svc+0x78/0x1e0 [ 55.687258][ T4740] el0t_64_sync_handler+0xcc/0xe4 [ 55.688132][ T4740] el0t_64_sync+0x1a0/0x1a4 [ 55.688920][ T4740] debugfs: out of free dentries, can not create directory 'nbd0' [ 55.690016][ T4740] block nbd0: Failed to create debugfs dir for 'nbd0' [ 55.696815][ T4741] block nbd0: shutting down sockets [ 55.856299][ T4743] FAULT_INJECTION: forcing a failure. [ 55.856299][ T4743] name failslab, interval 1, probability 0, space 0, times 0 [ 55.858291][ T4743] CPU: 0 PID: 4743 Comm: syz-executor.0 Not tainted syzkaller #0 [ 55.859343][ T4743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 55.860742][ T4743] Call trace: [ 55.861210][ T4743] dump_backtrace+0x0/0x43c [ 55.861833][ T4743] show_stack+0x2c/0x3c [ 55.862453][ T4743] __dump_stack+0x30/0x40 [ 55.863152][ T4743] dump_stack_lvl+0xf8/0x160 [ 55.863921][ T4743] dump_stack+0x1c/0x5c [ 55.864536][ T4743] should_fail+0x3c0/0x51c [ 55.865219][ T4743] __should_failslab+0xbc/0x10c [ 55.865979][ T4743] should_failslab+0x10/0x28 [ 55.866665][ T4743] slab_pre_alloc_hook+0x64/0xec [ 55.867364][ T4743] __kmalloc_node+0xb8/0x520 [ 55.868104][ T4743] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 55.868975][ T4743] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 55.869963][ T4743] nbd_start_device+0x14c/0xb40 [ 55.870746][ T4743] nbd_ioctl+0x514/0xc50 [ 55.871437][ T4743] blkdev_ioctl+0x5f8/0xbb8 [ 55.872160][ T4743] block_ioctl+0xa4/0x118 [ 55.872813][ T4743] __arm64_sys_ioctl+0x14c/0x1c8 [ 55.873546][ T4743] invoke_syscall+0x98/0x2b8 [ 55.874334][ T4743] el0_svc_common+0x138/0x258 [ 55.875099][ T4743] do_el0_svc+0x58/0x14c [ 55.875775][ T4743] el0_svc+0x78/0x1e0 [ 55.876417][ T4743] el0t_64_sync_handler+0xcc/0xe4 [ 55.877179][ T4743] el0t_64_sync+0x1a0/0x1a4 [ 55.877974][ T4743] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 55.880616][ T4744] block nbd0: shutting down sockets [ 56.014757][ T4747] block nbd0: Device being setup by another task [ 56.015991][ T4746] FAULT_INJECTION: forcing a failure. [ 56.015991][ T4746] name failslab, interval 1, probability 0, space 0, times 0 [ 56.017812][ T4746] CPU: 0 PID: 4746 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.019071][ T4746] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.020742][ T4746] Call trace: [ 56.021285][ T4746] dump_backtrace+0x0/0x43c [ 56.022015][ T4746] show_stack+0x2c/0x3c [ 56.022611][ T4746] __dump_stack+0x30/0x40 [ 56.023278][ T4746] dump_stack_lvl+0xf8/0x160 [ 56.024022][ T4746] dump_stack+0x1c/0x5c [ 56.024619][ T4746] should_fail+0x3c0/0x51c [ 56.025297][ T4746] __should_failslab+0xbc/0x10c [ 56.026055][ T4746] should_failslab+0x10/0x28 [ 56.026787][ T4746] slab_pre_alloc_hook+0x64/0xec [ 56.027516][ T4746] kmem_cache_alloc+0x94/0x3e4 [ 56.028198][ T4746] new_inode_pseudo+0x10c/0x1fc [ 56.028919][ T4746] new_inode+0x38/0x174 [ 56.029500][ T4746] debugfs_create_dir+0xec/0x3f4 [ 56.030293][ T4746] nbd_start_device+0x3c8/0xb40 [ 56.031084][ T4746] nbd_ioctl+0x514/0xc50 [ 56.031676][ T4746] blkdev_ioctl+0x5f8/0xbb8 [ 56.032333][ T4746] block_ioctl+0xa4/0x118 [ 56.032948][ T4746] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.033687][ T4746] invoke_syscall+0x98/0x2b8 [ 56.034354][ T4746] el0_svc_common+0x138/0x258 [ 56.035089][ T4746] do_el0_svc+0x58/0x14c [ 56.035742][ T4746] el0_svc+0x78/0x1e0 [ 56.036370][ T4746] el0t_64_sync_handler+0xcc/0xe4 [ 56.037193][ T4746] el0t_64_sync+0x1a0/0x1a4 [ 56.038017][ T4746] debugfs: out of free dentries, can not create directory 'nbd0' [ 56.039211][ T4746] block nbd0: Failed to create debugfs dir for 'nbd0' [ 56.056843][ T4747] block nbd0: shutting down sockets [ 56.184732][ T25] Bluetooth: hci0: command 0x0419 tx timeout [ 56.196346][ T4749] FAULT_INJECTION: forcing a failure. [ 56.196346][ T4749] name failslab, interval 1, probability 0, space 0, times 0 [ 56.198314][ T4749] CPU: 0 PID: 4749 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.199548][ T4749] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.201062][ T4749] Call trace: [ 56.201532][ T4749] dump_backtrace+0x0/0x43c [ 56.202213][ T4749] show_stack+0x2c/0x3c [ 56.202861][ T4749] __dump_stack+0x30/0x40 [ 56.203564][ T4749] dump_stack_lvl+0xf8/0x160 [ 56.204225][ T4749] dump_stack+0x1c/0x5c [ 56.204813][ T4749] should_fail+0x3c0/0x51c [ 56.205514][ T4749] __should_failslab+0xbc/0x10c [ 56.206219][ T4749] should_failslab+0x10/0x28 [ 56.206871][ T4749] slab_pre_alloc_hook+0x64/0xec [ 56.207588][ T4749] __kmalloc_node+0xb8/0x520 [ 56.208238][ T4749] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 56.209014][ T4749] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 56.209883][ T4749] nbd_start_device+0x14c/0xb40 [ 56.210607][ T4749] nbd_ioctl+0x514/0xc50 [ 56.211246][ T4749] blkdev_ioctl+0x5f8/0xbb8 [ 56.211979][ T4749] block_ioctl+0xa4/0x118 [ 56.212643][ T4749] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.213436][ T4749] invoke_syscall+0x98/0x2b8 [ 56.214126][ T4749] el0_svc_common+0x138/0x258 [ 56.214876][ T4749] do_el0_svc+0x58/0x14c [ 56.215546][ T4749] el0_svc+0x78/0x1e0 [ 56.216091][ T4749] el0t_64_sync_handler+0xcc/0xe4 [ 56.216837][ T4749] el0t_64_sync+0x1a0/0x1a4 [ 56.218054][ T4749] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 56.221086][ T4750] block nbd0: shutting down sockets [ 56.344795][ T4753] block nbd0: Device being setup by another task [ 56.345834][ T4752] FAULT_INJECTION: forcing a failure. [ 56.345834][ T4752] name failslab, interval 1, probability 0, space 0, times 0 [ 56.347670][ T4752] CPU: 0 PID: 4752 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.348746][ T4752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.350240][ T4752] Call trace: [ 56.350724][ T4752] dump_backtrace+0x0/0x43c [ 56.351364][ T4752] show_stack+0x2c/0x3c [ 56.351900][ T4752] __dump_stack+0x30/0x40 [ 56.352566][ T4752] dump_stack_lvl+0xf8/0x160 [ 56.353200][ T4752] dump_stack+0x1c/0x5c [ 56.353796][ T4752] should_fail+0x3c0/0x51c [ 56.354436][ T4752] __should_failslab+0xbc/0x10c [ 56.355231][ T4752] should_failslab+0x10/0x28 [ 56.355905][ T4752] slab_pre_alloc_hook+0x64/0xec [ 56.356669][ T4752] kmem_cache_alloc+0x94/0x3e4 [ 56.357375][ T4752] new_inode_pseudo+0x10c/0x1fc [ 56.358119][ T4752] new_inode+0x38/0x174 [ 56.358719][ T4752] debugfs_create_dir+0xec/0x3f4 [ 56.359432][ T4752] nbd_start_device+0x3c8/0xb40 [ 56.360097][ T4752] nbd_ioctl+0x514/0xc50 [ 56.360689][ T4752] blkdev_ioctl+0x5f8/0xbb8 [ 56.361454][ T4752] block_ioctl+0xa4/0x118 [ 56.362100][ T4752] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.362959][ T4752] invoke_syscall+0x98/0x2b8 [ 56.363626][ T4752] el0_svc_common+0x138/0x258 [ 56.364395][ T4752] do_el0_svc+0x58/0x14c [ 56.365065][ T4752] el0_svc+0x78/0x1e0 [ 56.365712][ T4752] el0t_64_sync_handler+0xcc/0xe4 [ 56.366566][ T4752] el0t_64_sync+0x1a0/0x1a4 [ 56.367959][ T4752] debugfs: out of free dentries, can not create directory 'nbd0' [ 56.369110][ T4752] block nbd0: Failed to create debugfs dir for 'nbd0' [ 56.387874][ T4753] block nbd0: shutting down sockets [ 56.556098][ T4755] FAULT_INJECTION: forcing a failure. [ 56.556098][ T4755] name failslab, interval 1, probability 0, space 0, times 0 [ 56.558057][ T4755] CPU: 0 PID: 4755 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.559284][ T4755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.560860][ T4755] Call trace: [ 56.561399][ T4755] dump_backtrace+0x0/0x43c [ 56.562103][ T4755] show_stack+0x2c/0x3c [ 56.562793][ T4755] __dump_stack+0x30/0x40 [ 56.563503][ T4755] dump_stack_lvl+0xf8/0x160 [ 56.564213][ T4755] dump_stack+0x1c/0x5c [ 56.564889][ T4755] should_fail+0x3c0/0x51c [ 56.565468][ T4755] __should_failslab+0xbc/0x10c [ 56.566153][ T4755] should_failslab+0x10/0x28 [ 56.566895][ T4755] slab_pre_alloc_hook+0x64/0xec [ 56.567628][ T4755] __kmalloc_node+0xb8/0x520 [ 56.568359][ T4755] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 56.569230][ T4755] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 56.570135][ T4755] nbd_start_device+0x14c/0xb40 [ 56.570811][ T4755] nbd_ioctl+0x514/0xc50 [ 56.571519][ T4755] blkdev_ioctl+0x5f8/0xbb8 [ 56.572202][ T4755] block_ioctl+0xa4/0x118 [ 56.572867][ T4755] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.573652][ T4755] invoke_syscall+0x98/0x2b8 [ 56.574373][ T4755] el0_svc_common+0x138/0x258 [ 56.575099][ T4755] do_el0_svc+0x58/0x14c [ 56.575729][ T4755] el0_svc+0x78/0x1e0 [ 56.576387][ T4755] el0t_64_sync_handler+0xcc/0xe4 [ 56.577141][ T4755] el0t_64_sync+0x1a0/0x1a4 [ 56.578546][ T4755] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 56.581224][ T4756] block nbd0: shutting down sockets [ 56.734713][ T4759] block nbd0: Device being setup by another task [ 56.735901][ T4758] FAULT_INJECTION: forcing a failure. [ 56.735901][ T4758] name failslab, interval 1, probability 0, space 0, times 0 [ 56.737819][ T4758] CPU: 0 PID: 4758 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.738899][ T4758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.740280][ T4758] Call trace: [ 56.740799][ T4758] dump_backtrace+0x0/0x43c [ 56.741476][ T4758] show_stack+0x2c/0x3c [ 56.742054][ T4758] __dump_stack+0x30/0x40 [ 56.742720][ T4758] dump_stack_lvl+0xf8/0x160 [ 56.743403][ T4758] dump_stack+0x1c/0x5c [ 56.744003][ T4758] should_fail+0x3c0/0x51c [ 56.744681][ T4758] __should_failslab+0xbc/0x10c [ 56.745464][ T4758] should_failslab+0x10/0x28 [ 56.746065][ T4758] slab_pre_alloc_hook+0x64/0xec [ 56.746841][ T4758] kmem_cache_alloc+0x94/0x3e4 [ 56.747492][ T4758] new_inode_pseudo+0x10c/0x1fc [ 56.748288][ T4758] new_inode+0x38/0x174 [ 56.748926][ T4758] debugfs_create_dir+0xec/0x3f4 [ 56.749735][ T4758] nbd_start_device+0x3c8/0xb40 [ 56.750546][ T4758] nbd_ioctl+0x514/0xc50 [ 56.751210][ T4758] blkdev_ioctl+0x5f8/0xbb8 [ 56.751923][ T4758] block_ioctl+0xa4/0x118 [ 56.752579][ T4758] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.753343][ T4758] invoke_syscall+0x98/0x2b8 [ 56.754039][ T4758] el0_svc_common+0x138/0x258 [ 56.754713][ T4758] do_el0_svc+0x58/0x14c [ 56.755314][ T4758] el0_svc+0x78/0x1e0 [ 56.755937][ T4758] el0t_64_sync_handler+0xcc/0xe4 [ 56.756639][ T4758] el0t_64_sync+0x1a0/0x1a4 [ 56.757968][ T4758] debugfs: out of free dentries, can not create directory 'nbd0' [ 56.759071][ T4758] block nbd0: Failed to create debugfs dir for 'nbd0' [ 56.760293][ T4759] block nbd0: shutting down sockets [ 56.936119][ T4762] FAULT_INJECTION: forcing a failure. [ 56.936119][ T4762] name failslab, interval 1, probability 0, space 0, times 0 [ 56.937999][ T4762] CPU: 1 PID: 4762 Comm: syz-executor.0 Not tainted syzkaller #0 [ 56.939120][ T4762] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 56.940615][ T4762] Call trace: [ 56.941026][ T4762] dump_backtrace+0x0/0x43c [ 56.941645][ T4762] show_stack+0x2c/0x3c [ 56.942314][ T4762] __dump_stack+0x30/0x40 [ 56.943028][ T4762] dump_stack_lvl+0xf8/0x160 [ 56.943716][ T4762] dump_stack+0x1c/0x5c [ 56.944354][ T4762] should_fail+0x3c0/0x51c [ 56.945075][ T4762] __should_failslab+0xbc/0x10c [ 56.945887][ T4762] should_failslab+0x10/0x28 [ 56.946667][ T4762] slab_pre_alloc_hook+0x64/0xec [ 56.947473][ T4762] __kmalloc_node+0xb8/0x520 [ 56.948155][ T4762] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 56.948934][ T4762] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 56.949724][ T4762] nbd_start_device+0x14c/0xb40 [ 56.950435][ T4762] nbd_ioctl+0x514/0xc50 [ 56.951076][ T4762] blkdev_ioctl+0x5f8/0xbb8 [ 56.951768][ T4762] block_ioctl+0xa4/0x118 [ 56.952501][ T4762] __arm64_sys_ioctl+0x14c/0x1c8 [ 56.953300][ T4762] invoke_syscall+0x98/0x2b8 [ 56.954050][ T4762] el0_svc_common+0x138/0x258 [ 56.954854][ T4762] do_el0_svc+0x58/0x14c [ 56.955486][ T4762] el0_svc+0x78/0x1e0 [ 56.956054][ T4762] el0t_64_sync_handler+0xcc/0xe4 [ 56.956785][ T4762] el0t_64_sync+0x1a0/0x1a4 [ 56.957571][ T4762] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 56.960139][ T4761] block nbd0: shutting down sockets [ 57.084719][ T4766] block nbd0: Device being setup by another task [ 57.086745][ T4765] FAULT_INJECTION: forcing a failure. [ 57.086745][ T4765] name failslab, interval 1, probability 0, space 0, times 0 [ 57.088686][ T4765] CPU: 0 PID: 4765 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.089827][ T4765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.091380][ T4765] Call trace: [ 57.091858][ T4765] dump_backtrace+0x0/0x43c [ 57.092459][ T4765] show_stack+0x2c/0x3c [ 57.093036][ T4765] __dump_stack+0x30/0x40 [ 57.093678][ T4765] dump_stack_lvl+0xf8/0x160 [ 57.094438][ T4765] dump_stack+0x1c/0x5c [ 57.095120][ T4765] should_fail+0x3c0/0x51c [ 57.095831][ T4765] __should_failslab+0xbc/0x10c [ 57.096651][ T4765] should_failslab+0x10/0x28 [ 57.097331][ T4765] slab_pre_alloc_hook+0x64/0xec [ 57.098167][ T4765] kmem_cache_alloc+0x94/0x3e4 [ 57.098930][ T4765] new_inode_pseudo+0x10c/0x1fc [ 57.099642][ T4765] new_inode+0x38/0x174 [ 57.100279][ T4765] debugfs_create_dir+0xec/0x3f4 [ 57.101000][ T4765] nbd_start_device+0x3c8/0xb40 [ 57.101748][ T4765] nbd_ioctl+0x514/0xc50 [ 57.102334][ T4765] blkdev_ioctl+0x5f8/0xbb8 [ 57.103007][ T4765] block_ioctl+0xa4/0x118 [ 57.103669][ T4765] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.104358][ T4765] invoke_syscall+0x98/0x2b8 [ 57.105053][ T4765] el0_svc_common+0x138/0x258 [ 57.105703][ T4765] do_el0_svc+0x58/0x14c [ 57.106358][ T4765] el0_svc+0x78/0x1e0 [ 57.106955][ T4765] el0t_64_sync_handler+0xcc/0xe4 [ 57.107697][ T4765] el0t_64_sync+0x1a0/0x1a4 [ 57.109075][ T4765] debugfs: out of free dentries, can not create directory 'nbd0' [ 57.110245][ T4765] block nbd0: Failed to create debugfs dir for 'nbd0' [ 57.136792][ T4766] block nbd0: shutting down sockets [ 57.276207][ T4768] FAULT_INJECTION: forcing a failure. [ 57.276207][ T4768] name failslab, interval 1, probability 0, space 0, times 0 [ 57.278198][ T4768] CPU: 0 PID: 4768 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.279388][ T4768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.280920][ T4768] Call trace: [ 57.281451][ T4768] dump_backtrace+0x0/0x43c [ 57.282190][ T4768] show_stack+0x2c/0x3c [ 57.282787][ T4768] __dump_stack+0x30/0x40 [ 57.283467][ T4768] dump_stack_lvl+0xf8/0x160 [ 57.284201][ T4768] dump_stack+0x1c/0x5c [ 57.284819][ T4768] should_fail+0x3c0/0x51c [ 57.285527][ T4768] __should_failslab+0xbc/0x10c [ 57.286336][ T4768] should_failslab+0x10/0x28 [ 57.287062][ T4768] slab_pre_alloc_hook+0x64/0xec [ 57.287872][ T4768] __kmalloc_node+0xb8/0x520 [ 57.288584][ T4768] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 57.289463][ T4768] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 57.290324][ T4768] nbd_start_device+0x14c/0xb40 [ 57.291001][ T4768] nbd_ioctl+0x514/0xc50 [ 57.291679][ T4768] blkdev_ioctl+0x5f8/0xbb8 [ 57.292374][ T4768] block_ioctl+0xa4/0x118 [ 57.292978][ T4768] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.293781][ T4768] invoke_syscall+0x98/0x2b8 [ 57.294473][ T4768] el0_svc_common+0x138/0x258 [ 57.295280][ T4768] do_el0_svc+0x58/0x14c [ 57.295942][ T4768] el0_svc+0x78/0x1e0 [ 57.296576][ T4768] el0t_64_sync_handler+0xcc/0xe4 [ 57.297321][ T4768] el0t_64_sync+0x1a0/0x1a4 [ 57.298469][ T4768] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 57.301136][ T4769] block nbd0: shutting down sockets [ 57.446237][ T4772] FAULT_INJECTION: forcing a failure. [ 57.446237][ T4772] name failslab, interval 1, probability 0, space 0, times 0 [ 57.448430][ T4772] CPU: 1 PID: 4772 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.449501][ T4772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.450912][ T4772] Call trace: [ 57.451410][ T4772] dump_backtrace+0x0/0x43c [ 57.452098][ T4772] show_stack+0x2c/0x3c [ 57.452768][ T4772] __dump_stack+0x30/0x40 [ 57.453451][ T4772] dump_stack_lvl+0xf8/0x160 [ 57.454149][ T4772] dump_stack+0x1c/0x5c [ 57.454717][ T4772] should_fail+0x3c0/0x51c [ 57.455427][ T4772] __should_failslab+0xbc/0x10c [ 57.456231][ T4772] should_failslab+0x10/0x28 [ 57.456958][ T4772] slab_pre_alloc_hook+0x64/0xec [ 57.457736][ T4772] __kmalloc_node+0xb8/0x520 [ 57.458490][ T4772] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 57.459336][ T4772] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 57.460210][ T4772] nbd_start_device+0x14c/0xb40 [ 57.460916][ T4772] nbd_ioctl+0x514/0xc50 [ 57.461543][ T4772] blkdev_ioctl+0x5f8/0xbb8 [ 57.462233][ T4772] block_ioctl+0xa4/0x118 [ 57.462931][ T4772] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.463668][ T4772] invoke_syscall+0x98/0x2b8 [ 57.464347][ T4772] el0_svc_common+0x138/0x258 [ 57.465092][ T4772] do_el0_svc+0x58/0x14c [ 57.465752][ T4772] el0_svc+0x78/0x1e0 [ 57.466329][ T4772] el0t_64_sync_handler+0xcc/0xe4 [ 57.467098][ T4772] el0t_64_sync+0x1a0/0x1a4 [ 57.467933][ T4772] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 57.471334][ T4771] block nbd0: shutting down sockets [ 57.616140][ T4775] FAULT_INJECTION: forcing a failure. [ 57.616140][ T4775] name failslab, interval 1, probability 0, space 0, times 0 [ 57.618263][ T4775] CPU: 0 PID: 4775 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.619430][ T4775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.620931][ T4775] Call trace: [ 57.621372][ T4775] dump_backtrace+0x0/0x43c [ 57.621996][ T4775] show_stack+0x2c/0x3c [ 57.622609][ T4775] __dump_stack+0x30/0x40 [ 57.623255][ T4775] dump_stack_lvl+0xf8/0x160 [ 57.624021][ T4775] dump_stack+0x1c/0x5c [ 57.624665][ T4775] should_fail+0x3c0/0x51c [ 57.625365][ T4775] __should_failslab+0xbc/0x10c [ 57.626197][ T4775] should_failslab+0x10/0x28 [ 57.626951][ T4775] slab_pre_alloc_hook+0x64/0xec [ 57.627756][ T4775] __kmalloc_node+0xb8/0x520 [ 57.628479][ T4775] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 57.629281][ T4775] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 57.630090][ T4775] nbd_start_device+0x14c/0xb40 [ 57.630806][ T4775] nbd_ioctl+0x514/0xc50 [ 57.631441][ T4775] blkdev_ioctl+0x5f8/0xbb8 [ 57.632112][ T4775] block_ioctl+0xa4/0x118 [ 57.632809][ T4775] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.633464][ T4775] invoke_syscall+0x98/0x2b8 [ 57.634179][ T4775] el0_svc_common+0x138/0x258 [ 57.634889][ T4775] do_el0_svc+0x58/0x14c [ 57.635504][ T4775] el0_svc+0x78/0x1e0 [ 57.636062][ T4775] el0t_64_sync_handler+0xcc/0xe4 [ 57.636801][ T4775] el0t_64_sync+0x1a0/0x1a4 [ 57.638101][ T4775] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 57.640674][ T4774] block nbd0: shutting down sockets [ 57.756558][ T4777] FAULT_INJECTION: forcing a failure. [ 57.756558][ T4777] name failslab, interval 1, probability 0, space 0, times 0 [ 57.758760][ T4777] CPU: 1 PID: 4777 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.759925][ T4777] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.761460][ T4777] Call trace: [ 57.761956][ T4777] dump_backtrace+0x0/0x43c [ 57.762675][ T4777] show_stack+0x2c/0x3c [ 57.763348][ T4777] __dump_stack+0x30/0x40 [ 57.764051][ T4777] dump_stack_lvl+0xf8/0x160 [ 57.764783][ T4777] dump_stack+0x1c/0x5c [ 57.765370][ T4777] should_fail+0x3c0/0x51c [ 57.766008][ T4777] __should_failslab+0xbc/0x10c [ 57.766718][ T4777] should_failslab+0x10/0x28 [ 57.767421][ T4777] slab_pre_alloc_hook+0x64/0xec [ 57.768213][ T4777] __kmalloc_node+0xb8/0x520 [ 57.768917][ T4777] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 57.769660][ T4777] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 57.770463][ T4777] nbd_start_device+0x14c/0xb40 [ 57.771222][ T4777] nbd_ioctl+0x514/0xc50 [ 57.771876][ T4777] blkdev_ioctl+0x5f8/0xbb8 [ 57.772599][ T4777] block_ioctl+0xa4/0x118 [ 57.773341][ T4777] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.774182][ T4777] invoke_syscall+0x98/0x2b8 [ 57.774944][ T4777] el0_svc_common+0x138/0x258 [ 57.775696][ T4777] do_el0_svc+0x58/0x14c [ 57.776387][ T4777] el0_svc+0x78/0x1e0 [ 57.777011][ T4777] el0t_64_sync_handler+0xcc/0xe4 [ 57.777777][ T4777] el0t_64_sync+0x1a0/0x1a4 [ 57.779118][ T4777] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 57.781776][ T4778] block nbd0: shutting down sockets [ 57.926140][ T4781] FAULT_INJECTION: forcing a failure. [ 57.926140][ T4781] name failslab, interval 1, probability 0, space 0, times 0 [ 57.928240][ T4781] CPU: 0 PID: 4781 Comm: syz-executor.0 Not tainted syzkaller #0 [ 57.929510][ T4781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 57.931137][ T4781] Call trace: [ 57.931637][ T4781] dump_backtrace+0x0/0x43c [ 57.932380][ T4781] show_stack+0x2c/0x3c [ 57.932958][ T4781] __dump_stack+0x30/0x40 [ 57.933555][ T4781] dump_stack_lvl+0xf8/0x160 [ 57.934216][ T4781] dump_stack+0x1c/0x5c [ 57.934878][ T4781] should_fail+0x3c0/0x51c [ 57.935633][ T4781] __should_failslab+0xbc/0x10c [ 57.936415][ T4781] should_failslab+0x10/0x28 [ 57.937137][ T4781] slab_pre_alloc_hook+0x64/0xec [ 57.937992][ T4781] __kmalloc_node+0xb8/0x520 [ 57.938652][ T4781] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 57.939551][ T4781] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 57.940393][ T4781] nbd_start_device+0x14c/0xb40 [ 57.941105][ T4781] nbd_ioctl+0x514/0xc50 [ 57.941760][ T4781] blkdev_ioctl+0x5f8/0xbb8 [ 57.942434][ T4781] block_ioctl+0xa4/0x118 [ 57.943072][ T4781] __arm64_sys_ioctl+0x14c/0x1c8 [ 57.943899][ T4781] invoke_syscall+0x98/0x2b8 [ 57.944618][ T4781] el0_svc_common+0x138/0x258 [ 57.945352][ T4781] do_el0_svc+0x58/0x14c [ 57.945993][ T4781] el0_svc+0x78/0x1e0 [ 57.946621][ T4781] el0t_64_sync_handler+0xcc/0xe4 [ 57.947359][ T4781] el0t_64_sync+0x1a0/0x1a4 [ 57.948734][ T4781] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 57.951281][ T4780] block nbd0: shutting down sockets [ 58.074739][ T4784] block nbd0: Device being setup by another task [ 58.075879][ T4783] FAULT_INJECTION: forcing a failure. [ 58.075879][ T4783] name failslab, interval 1, probability 0, space 0, times 0 [ 58.078005][ T4783] CPU: 0 PID: 4783 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.079197][ T4783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.080837][ T4783] Call trace: [ 58.081340][ T4783] dump_backtrace+0x0/0x43c [ 58.081978][ T4783] show_stack+0x2c/0x3c [ 58.082514][ T4783] __dump_stack+0x30/0x40 [ 58.083154][ T4783] dump_stack_lvl+0xf8/0x160 [ 58.083858][ T4783] dump_stack+0x1c/0x5c [ 58.084514][ T4783] should_fail+0x3c0/0x51c [ 58.085167][ T4783] __should_failslab+0xbc/0x10c [ 58.085899][ T4783] should_failslab+0x10/0x28 [ 58.086653][ T4783] slab_pre_alloc_hook+0x64/0xec [ 58.087389][ T4783] kmem_cache_alloc+0x94/0x3e4 [ 58.088125][ T4783] new_inode_pseudo+0x10c/0x1fc [ 58.088774][ T4783] new_inode+0x38/0x174 [ 58.089383][ T4783] debugfs_create_dir+0xec/0x3f4 [ 58.090123][ T4783] nbd_start_device+0x3c8/0xb40 [ 58.090909][ T4783] nbd_ioctl+0x514/0xc50 [ 58.091554][ T4783] blkdev_ioctl+0x5f8/0xbb8 [ 58.092209][ T4783] block_ioctl+0xa4/0x118 [ 58.092836][ T4783] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.093497][ T4783] invoke_syscall+0x98/0x2b8 [ 58.094255][ T4783] el0_svc_common+0x138/0x258 [ 58.095039][ T4783] do_el0_svc+0x58/0x14c [ 58.095705][ T4783] el0_svc+0x78/0x1e0 [ 58.096338][ T4783] el0t_64_sync_handler+0xcc/0xe4 [ 58.097122][ T4783] el0t_64_sync+0x1a0/0x1a4 [ 58.098409][ T4783] debugfs: out of free dentries, can not create directory 'nbd0' [ 58.099495][ T4783] block nbd0: Failed to create debugfs dir for 'nbd0' [ 58.118836][ T4784] block nbd0: shutting down sockets 1970/01/01 00:00:58 executed programs: 53 [ 58.246117][ T4786] FAULT_INJECTION: forcing a failure. [ 58.246117][ T4786] name failslab, interval 1, probability 0, space 0, times 0 [ 58.248057][ T4786] CPU: 1 PID: 4786 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.249130][ T4786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.250506][ T4786] Call trace: [ 58.250970][ T4786] dump_backtrace+0x0/0x43c [ 58.251636][ T4786] show_stack+0x2c/0x3c [ 58.252234][ T4786] __dump_stack+0x30/0x40 [ 58.252831][ T4786] dump_stack_lvl+0xf8/0x160 [ 58.253454][ T4786] dump_stack+0x1c/0x5c [ 58.254025][ T4786] should_fail+0x3c0/0x51c [ 58.254738][ T4786] __should_failslab+0xbc/0x10c [ 58.255461][ T4786] should_failslab+0x10/0x28 [ 58.256191][ T4786] slab_pre_alloc_hook+0x64/0xec [ 58.256951][ T4786] __kmalloc_node+0xb8/0x520 [ 58.257600][ T4786] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 58.258471][ T4786] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 58.259380][ T4786] nbd_start_device+0x14c/0xb40 [ 58.260173][ T4786] nbd_ioctl+0x514/0xc50 [ 58.260847][ T4786] blkdev_ioctl+0x5f8/0xbb8 [ 58.261588][ T4786] block_ioctl+0xa4/0x118 [ 58.262254][ T4786] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.263054][ T4786] invoke_syscall+0x98/0x2b8 [ 58.263736][ T4786] el0_svc_common+0x138/0x258 [ 58.264432][ T4786] do_el0_svc+0x58/0x14c [ 58.265098][ T4786] el0_svc+0x78/0x1e0 [ 58.265755][ T4786] el0t_64_sync_handler+0xcc/0xe4 [ 58.266564][ T4786] el0t_64_sync+0x1a0/0x1a4 [ 58.267846][ T4786] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 58.270452][ T4787] block nbd0: shutting down sockets [ 58.376224][ T4789] FAULT_INJECTION: forcing a failure. [ 58.376224][ T4789] name failslab, interval 1, probability 0, space 0, times 0 [ 58.378325][ T4789] CPU: 1 PID: 4789 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.379550][ T4789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.381074][ T4789] Call trace: [ 58.381563][ T4789] dump_backtrace+0x0/0x43c [ 58.382321][ T4789] show_stack+0x2c/0x3c [ 58.382978][ T4789] __dump_stack+0x30/0x40 [ 58.383648][ T4789] dump_stack_lvl+0xf8/0x160 [ 58.384359][ T4789] dump_stack+0x1c/0x5c [ 58.384998][ T4789] should_fail+0x3c0/0x51c [ 58.385689][ T4789] __should_failslab+0xbc/0x10c [ 58.386468][ T4789] should_failslab+0x10/0x28 [ 58.387222][ T4789] slab_pre_alloc_hook+0x64/0xec [ 58.388047][ T4789] __kmalloc_node+0xb8/0x520 [ 58.388765][ T4789] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 58.389583][ T4789] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 58.390460][ T4789] nbd_start_device+0x14c/0xb40 [ 58.391235][ T4789] nbd_ioctl+0x514/0xc50 [ 58.391864][ T4789] blkdev_ioctl+0x5f8/0xbb8 [ 58.392506][ T4789] block_ioctl+0xa4/0x118 [ 58.393116][ T4789] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.393892][ T4789] invoke_syscall+0x98/0x2b8 [ 58.394655][ T4789] el0_svc_common+0x138/0x258 [ 58.395397][ T4789] do_el0_svc+0x58/0x14c [ 58.396106][ T4789] el0_svc+0x78/0x1e0 [ 58.396722][ T4789] el0t_64_sync_handler+0xcc/0xe4 [ 58.397500][ T4789] el0t_64_sync+0x1a0/0x1a4 [ 58.398720][ T4789] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 58.401447][ T4790] block nbd0: shutting down sockets [ 58.536717][ T4792] FAULT_INJECTION: forcing a failure. [ 58.536717][ T4792] name failslab, interval 1, probability 0, space 0, times 0 [ 58.538815][ T4792] CPU: 0 PID: 4792 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.539966][ T4792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.541424][ T4792] Call trace: [ 58.541905][ T4792] dump_backtrace+0x0/0x43c [ 58.542598][ T4792] show_stack+0x2c/0x3c [ 58.543204][ T4792] __dump_stack+0x30/0x40 [ 58.543785][ T4792] dump_stack_lvl+0xf8/0x160 [ 58.544476][ T4792] dump_stack+0x1c/0x5c [ 58.545099][ T4792] should_fail+0x3c0/0x51c [ 58.545789][ T4792] __should_failslab+0xbc/0x10c [ 58.546555][ T4792] should_failslab+0x10/0x28 [ 58.547275][ T4792] slab_pre_alloc_hook+0x64/0xec [ 58.548017][ T4792] __kmalloc_node+0xb8/0x520 [ 58.548761][ T4792] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 58.549653][ T4792] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 58.550608][ T4792] nbd_start_device+0x14c/0xb40 [ 58.551368][ T4792] nbd_ioctl+0x514/0xc50 [ 58.552048][ T4792] blkdev_ioctl+0x5f8/0xbb8 [ 58.552776][ T4792] block_ioctl+0xa4/0x118 [ 58.553440][ T4792] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.554259][ T4792] invoke_syscall+0x98/0x2b8 [ 58.555019][ T4792] el0_svc_common+0x138/0x258 [ 58.555786][ T4792] do_el0_svc+0x58/0x14c [ 58.556487][ T4792] el0_svc+0x78/0x1e0 [ 58.557076][ T4792] el0t_64_sync_handler+0xcc/0xe4 [ 58.557939][ T4792] el0t_64_sync+0x1a0/0x1a4 [ 58.559111][ T4792] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 58.562136][ T4793] block nbd0: shutting down sockets [ 58.696229][ T4795] FAULT_INJECTION: forcing a failure. [ 58.696229][ T4795] name failslab, interval 1, probability 0, space 0, times 0 [ 58.698092][ T4795] CPU: 0 PID: 4795 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.699233][ T4795] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.700745][ T4795] Call trace: [ 58.701232][ T4795] dump_backtrace+0x0/0x43c [ 58.701953][ T4795] show_stack+0x2c/0x3c [ 58.702649][ T4795] __dump_stack+0x30/0x40 [ 58.703345][ T4795] dump_stack_lvl+0xf8/0x160 [ 58.704021][ T4795] dump_stack+0x1c/0x5c [ 58.704695][ T4795] should_fail+0x3c0/0x51c [ 58.705337][ T4795] __should_failslab+0xbc/0x10c [ 58.706021][ T4795] should_failslab+0x10/0x28 [ 58.706708][ T4795] slab_pre_alloc_hook+0x64/0xec [ 58.707368][ T4795] __kmalloc_node+0xb8/0x520 [ 58.708058][ T4795] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 58.708793][ T4795] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 58.709637][ T4795] nbd_start_device+0x14c/0xb40 [ 58.710375][ T4795] nbd_ioctl+0x514/0xc50 [ 58.711023][ T4795] blkdev_ioctl+0x5f8/0xbb8 [ 58.711768][ T4795] block_ioctl+0xa4/0x118 [ 58.712471][ T4795] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.713290][ T4795] invoke_syscall+0x98/0x2b8 [ 58.713950][ T4795] el0_svc_common+0x138/0x258 [ 58.714741][ T4795] do_el0_svc+0x58/0x14c [ 58.715414][ T4795] el0_svc+0x78/0x1e0 [ 58.716041][ T4795] el0t_64_sync_handler+0xcc/0xe4 [ 58.716801][ T4795] el0t_64_sync+0x1a0/0x1a4 [ 58.717908][ T4795] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 58.720506][ T4796] block nbd0: shutting down sockets [ 58.856211][ T4798] FAULT_INJECTION: forcing a failure. [ 58.856211][ T4798] name failslab, interval 1, probability 0, space 0, times 0 [ 58.858409][ T4798] CPU: 0 PID: 4798 Comm: syz-executor.0 Not tainted syzkaller #0 [ 58.859698][ T4798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 58.861209][ T4798] Call trace: [ 58.861686][ T4798] dump_backtrace+0x0/0x43c [ 58.862332][ T4798] show_stack+0x2c/0x3c [ 58.862937][ T4798] __dump_stack+0x30/0x40 [ 58.863567][ T4798] dump_stack_lvl+0xf8/0x160 [ 58.864256][ T4798] dump_stack+0x1c/0x5c [ 58.864944][ T4798] should_fail+0x3c0/0x51c [ 58.865589][ T4798] __should_failslab+0xbc/0x10c [ 58.866366][ T4798] should_failslab+0x10/0x28 [ 58.867137][ T4798] slab_pre_alloc_hook+0x64/0xec [ 58.867954][ T4798] __kmalloc_node+0xb8/0x520 [ 58.868739][ T4798] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 58.869678][ T4798] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 58.870644][ T4798] nbd_start_device+0x14c/0xb40 [ 58.871439][ T4798] nbd_ioctl+0x514/0xc50 [ 58.872092][ T4798] blkdev_ioctl+0x5f8/0xbb8 [ 58.872765][ T4798] block_ioctl+0xa4/0x118 [ 58.873481][ T4798] __arm64_sys_ioctl+0x14c/0x1c8 [ 58.874201][ T4798] invoke_syscall+0x98/0x2b8 [ 58.874884][ T4798] el0_svc_common+0x138/0x258 [ 58.875582][ T4798] do_el0_svc+0x58/0x14c [ 58.876273][ T4798] el0_svc+0x78/0x1e0 [ 58.876855][ T4798] el0t_64_sync_handler+0xcc/0xe4 [ 58.877599][ T4798] el0t_64_sync+0x1a0/0x1a4 [ 58.878788][ T4798] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 58.881739][ T4799] block nbd0: shutting down sockets [ 59.016651][ T4801] FAULT_INJECTION: forcing a failure. [ 59.016651][ T4801] name failslab, interval 1, probability 0, space 0, times 0 [ 59.018785][ T4801] CPU: 1 PID: 4801 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.019994][ T4801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.021524][ T4801] Call trace: [ 59.021967][ T4801] dump_backtrace+0x0/0x43c [ 59.022632][ T4801] show_stack+0x2c/0x3c [ 59.023277][ T4801] __dump_stack+0x30/0x40 [ 59.023921][ T4801] dump_stack_lvl+0xf8/0x160 [ 59.024601][ T4801] dump_stack+0x1c/0x5c [ 59.025228][ T4801] should_fail+0x3c0/0x51c [ 59.025893][ T4801] __should_failslab+0xbc/0x10c [ 59.026652][ T4801] should_failslab+0x10/0x28 [ 59.027415][ T4801] slab_pre_alloc_hook+0x64/0xec [ 59.028242][ T4801] __kmalloc_node+0xb8/0x520 [ 59.028952][ T4801] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 59.029834][ T4801] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 59.030781][ T4801] nbd_start_device+0x14c/0xb40 [ 59.031558][ T4801] nbd_ioctl+0x514/0xc50 [ 59.032219][ T4801] blkdev_ioctl+0x5f8/0xbb8 [ 59.032918][ T4801] block_ioctl+0xa4/0x118 [ 59.033584][ T4801] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.034358][ T4801] invoke_syscall+0x98/0x2b8 [ 59.035066][ T4801] el0_svc_common+0x138/0x258 [ 59.035799][ T4801] do_el0_svc+0x58/0x14c [ 59.036517][ T4801] el0_svc+0x78/0x1e0 [ 59.037176][ T4801] el0t_64_sync_handler+0xcc/0xe4 [ 59.037938][ T4801] el0t_64_sync+0x1a0/0x1a4 [ 59.039117][ T4801] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 59.041804][ T4802] block nbd0: shutting down sockets [ 59.186229][ T4804] FAULT_INJECTION: forcing a failure. [ 59.186229][ T4804] name failslab, interval 1, probability 0, space 0, times 0 [ 59.188338][ T4804] CPU: 1 PID: 4804 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.189515][ T4804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.191038][ T4804] Call trace: [ 59.191521][ T4804] dump_backtrace+0x0/0x43c [ 59.192214][ T4804] show_stack+0x2c/0x3c [ 59.192891][ T4804] __dump_stack+0x30/0x40 [ 59.193575][ T4804] dump_stack_lvl+0xf8/0x160 [ 59.194266][ T4804] dump_stack+0x1c/0x5c [ 59.194868][ T4804] should_fail+0x3c0/0x51c [ 59.195556][ T4804] __should_failslab+0xbc/0x10c [ 59.196298][ T4804] should_failslab+0x10/0x28 [ 59.196994][ T4804] slab_pre_alloc_hook+0x64/0xec [ 59.197762][ T4804] __kmalloc_node+0xb8/0x520 [ 59.198469][ T4804] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 59.199281][ T4804] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 59.200198][ T4804] nbd_start_device+0x14c/0xb40 [ 59.201011][ T4804] nbd_ioctl+0x514/0xc50 [ 59.201691][ T4804] blkdev_ioctl+0x5f8/0xbb8 [ 59.202406][ T4804] block_ioctl+0xa4/0x118 [ 59.203091][ T4804] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.203822][ T4804] invoke_syscall+0x98/0x2b8 [ 59.204601][ T4804] el0_svc_common+0x138/0x258 [ 59.205298][ T4804] do_el0_svc+0x58/0x14c [ 59.205974][ T4804] el0_svc+0x78/0x1e0 [ 59.206584][ T4804] el0t_64_sync_handler+0xcc/0xe4 [ 59.207321][ T4804] el0t_64_sync+0x1a0/0x1a4 [ 59.208521][ T4804] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 59.211536][ T4805] block nbd0: shutting down sockets [ 59.344723][ T4808] block nbd0: Device being setup by another task [ 59.345957][ T4807] FAULT_INJECTION: forcing a failure. [ 59.345957][ T4807] name failslab, interval 1, probability 0, space 0, times 0 [ 59.347969][ T4807] CPU: 0 PID: 4807 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.349123][ T4807] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.350569][ T4807] Call trace: [ 59.351024][ T4807] dump_backtrace+0x0/0x43c [ 59.351630][ T4807] show_stack+0x2c/0x3c [ 59.352342][ T4807] __dump_stack+0x30/0x40 [ 59.353010][ T4807] dump_stack_lvl+0xf8/0x160 [ 59.353735][ T4807] dump_stack+0x1c/0x5c [ 59.354455][ T4807] should_fail+0x3c0/0x51c [ 59.355169][ T4807] __should_failslab+0xbc/0x10c [ 59.356008][ T4807] should_failslab+0x10/0x28 [ 59.356766][ T4807] slab_pre_alloc_hook+0x64/0xec [ 59.357605][ T4807] __kmalloc_node+0xb8/0x520 [ 59.358369][ T4807] memcg_alloc_page_obj_cgroups+0x80/0x174 [ 59.359312][ T4807] slab_post_alloc_hook+0xc0/0x408 [ 59.360153][ T4807] kmem_cache_alloc+0x1e0/0x3e4 [ 59.360879][ T4807] __d_alloc+0x3c/0x65c [ 59.361471][ T4807] d_alloc_parallel+0x80/0x1104 [ 59.362201][ T4807] __lookup_slow+0x104/0x380 [ 59.362837][ T4807] lookup_one_len+0x178/0x28c [ 59.363528][ T4807] start_creating+0x19c/0x2e0 [ 59.364255][ T4807] debugfs_create_dir+0x30/0x3f4 [ 59.365063][ T4807] nbd_start_device+0x3c8/0xb40 [ 59.365825][ T4807] nbd_ioctl+0x514/0xc50 [ 59.366487][ T4807] blkdev_ioctl+0x5f8/0xbb8 [ 59.367167][ T4807] block_ioctl+0xa4/0x118 [ 59.367813][ T4807] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.368670][ T4807] invoke_syscall+0x98/0x2b8 [ 59.369443][ T4807] el0_svc_common+0x138/0x258 [ 59.370167][ T4807] do_el0_svc+0x58/0x14c [ 59.370933][ T4807] el0_svc+0x78/0x1e0 [ 59.371627][ T4807] el0t_64_sync_handler+0xcc/0xe4 [ 59.372402][ T4807] el0t_64_sync+0x1a0/0x1a4 [ 59.385827][ T4808] block nbd0: shutting down sockets [ 59.496222][ T4810] FAULT_INJECTION: forcing a failure. [ 59.496222][ T4810] name failslab, interval 1, probability 0, space 0, times 0 [ 59.498299][ T4810] CPU: 1 PID: 4810 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.499438][ T4810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.501080][ T4810] Call trace: [ 59.501646][ T4810] dump_backtrace+0x0/0x43c [ 59.502395][ T4810] show_stack+0x2c/0x3c [ 59.503056][ T4810] __dump_stack+0x30/0x40 [ 59.503748][ T4810] dump_stack_lvl+0xf8/0x160 [ 59.504552][ T4810] dump_stack+0x1c/0x5c [ 59.505280][ T4810] should_fail+0x3c0/0x51c [ 59.506024][ T4810] __should_failslab+0xbc/0x10c [ 59.506793][ T4810] should_failslab+0x10/0x28 [ 59.507521][ T4810] slab_pre_alloc_hook+0x64/0xec [ 59.508274][ T4810] __kmalloc_node+0xb8/0x520 [ 59.508958][ T4810] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 59.509745][ T4810] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 59.510564][ T4810] nbd_start_device+0x14c/0xb40 [ 59.511246][ T4810] nbd_ioctl+0x514/0xc50 [ 59.511853][ T4810] blkdev_ioctl+0x5f8/0xbb8 [ 59.512496][ T4810] block_ioctl+0xa4/0x118 [ 59.513190][ T4810] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.514008][ T4810] invoke_syscall+0x98/0x2b8 [ 59.514739][ T4810] el0_svc_common+0x138/0x258 [ 59.515485][ T4810] do_el0_svc+0x58/0x14c [ 59.516097][ T4810] el0_svc+0x78/0x1e0 [ 59.516724][ T4810] el0t_64_sync_handler+0xcc/0xe4 [ 59.517443][ T4810] el0t_64_sync+0x1a0/0x1a4 [ 59.518887][ T4810] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 59.521652][ T4811] block nbd0: shutting down sockets [ 59.676130][ T4814] FAULT_INJECTION: forcing a failure. [ 59.676130][ T4814] name failslab, interval 1, probability 0, space 0, times 0 [ 59.678068][ T4814] CPU: 1 PID: 4814 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.679177][ T4814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.680699][ T4814] Call trace: [ 59.681157][ T4814] dump_backtrace+0x0/0x43c [ 59.681802][ T4814] show_stack+0x2c/0x3c [ 59.682364][ T4814] __dump_stack+0x30/0x40 [ 59.682976][ T4814] dump_stack_lvl+0xf8/0x160 [ 59.683637][ T4814] dump_stack+0x1c/0x5c [ 59.684197][ T4814] should_fail+0x3c0/0x51c [ 59.684801][ T4814] __should_failslab+0xbc/0x10c [ 59.685477][ T4814] should_failslab+0x10/0x28 [ 59.686113][ T4814] slab_pre_alloc_hook+0x64/0xec [ 59.686856][ T4814] __kmalloc_node+0xb8/0x520 [ 59.687575][ T4814] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 59.688357][ T4814] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 59.689199][ T4814] nbd_start_device+0x14c/0xb40 [ 59.690033][ T4814] nbd_ioctl+0x514/0xc50 [ 59.690745][ T4814] blkdev_ioctl+0x5f8/0xbb8 [ 59.691472][ T4814] block_ioctl+0xa4/0x118 [ 59.692140][ T4814] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.692938][ T4814] invoke_syscall+0x98/0x2b8 [ 59.693689][ T4814] el0_svc_common+0x138/0x258 [ 59.694442][ T4814] do_el0_svc+0x58/0x14c [ 59.695109][ T4814] el0_svc+0x78/0x1e0 [ 59.695739][ T4814] el0t_64_sync_handler+0xcc/0xe4 [ 59.696596][ T4814] el0t_64_sync+0x1a0/0x1a4 [ 59.698038][ T4814] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 59.700617][ T4813] block nbd0: shutting down sockets [ 59.836715][ T4816] FAULT_INJECTION: forcing a failure. [ 59.836715][ T4816] name failslab, interval 1, probability 0, space 0, times 0 [ 59.838626][ T4816] CPU: 1 PID: 4816 Comm: syz-executor.0 Not tainted syzkaller #0 [ 59.839732][ T4816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 59.841088][ T4816] Call trace: [ 59.841514][ T4816] dump_backtrace+0x0/0x43c [ 59.842258][ T4816] show_stack+0x2c/0x3c [ 59.842894][ T4816] __dump_stack+0x30/0x40 [ 59.843528][ T4816] dump_stack_lvl+0xf8/0x160 [ 59.844256][ T4816] dump_stack+0x1c/0x5c [ 59.844978][ T4816] should_fail+0x3c0/0x51c [ 59.845677][ T4816] __should_failslab+0xbc/0x10c [ 59.846420][ T4816] should_failslab+0x10/0x28 [ 59.847138][ T4816] slab_pre_alloc_hook+0x64/0xec [ 59.847892][ T4816] __kmalloc_node+0xb8/0x520 [ 59.848583][ T4816] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 59.849442][ T4816] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 59.850369][ T4816] nbd_start_device+0x14c/0xb40 [ 59.851078][ T4816] nbd_ioctl+0x514/0xc50 [ 59.851694][ T4816] blkdev_ioctl+0x5f8/0xbb8 [ 59.852425][ T4816] block_ioctl+0xa4/0x118 [ 59.853102][ T4816] __arm64_sys_ioctl+0x14c/0x1c8 [ 59.853859][ T4816] invoke_syscall+0x98/0x2b8 [ 59.854587][ T4816] el0_svc_common+0x138/0x258 [ 59.855319][ T4816] do_el0_svc+0x58/0x14c [ 59.855987][ T4816] el0_svc+0x78/0x1e0 [ 59.856540][ T4816] el0t_64_sync_handler+0xcc/0xe4 [ 59.857243][ T4816] el0t_64_sync+0x1a0/0x1a4 [ 59.858411][ T4816] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 59.861464][ T4817] block nbd0: shutting down sockets [ 60.006076][ T4820] FAULT_INJECTION: forcing a failure. [ 60.006076][ T4820] name failslab, interval 1, probability 0, space 0, times 0 [ 60.008293][ T4820] CPU: 1 PID: 4820 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.009532][ T4820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.011056][ T4820] Call trace: [ 60.011492][ T4820] dump_backtrace+0x0/0x43c [ 60.012209][ T4820] show_stack+0x2c/0x3c [ 60.012854][ T4820] __dump_stack+0x30/0x40 [ 60.013453][ T4820] dump_stack_lvl+0xf8/0x160 [ 60.014112][ T4820] dump_stack+0x1c/0x5c [ 60.014772][ T4820] should_fail+0x3c0/0x51c [ 60.015454][ T4820] __should_failslab+0xbc/0x10c [ 60.016222][ T4820] should_failslab+0x10/0x28 [ 60.016931][ T4820] slab_pre_alloc_hook+0x64/0xec [ 60.017691][ T4820] __kmalloc_node+0xb8/0x520 [ 60.018371][ T4820] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.019215][ T4820] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.020036][ T4820] nbd_start_device+0x14c/0xb40 [ 60.020852][ T4820] nbd_ioctl+0x514/0xc50 [ 60.021535][ T4820] blkdev_ioctl+0x5f8/0xbb8 [ 60.022206][ T4820] block_ioctl+0xa4/0x118 [ 60.022927][ T4820] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.023705][ T4820] invoke_syscall+0x98/0x2b8 [ 60.024418][ T4820] el0_svc_common+0x138/0x258 [ 60.025145][ T4820] do_el0_svc+0x58/0x14c [ 60.025801][ T4820] el0_svc+0x78/0x1e0 [ 60.026428][ T4820] el0t_64_sync_handler+0xcc/0xe4 [ 60.027185][ T4820] el0t_64_sync+0x1a0/0x1a4 [ 60.027963][ T4820] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.030915][ T4819] block nbd0: shutting down sockets [ 60.176218][ T4822] FAULT_INJECTION: forcing a failure. [ 60.176218][ T4822] name failslab, interval 1, probability 0, space 0, times 0 [ 60.178423][ T4822] CPU: 1 PID: 4822 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.179639][ T4822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.181245][ T4822] Call trace: [ 60.181785][ T4822] dump_backtrace+0x0/0x43c [ 60.182500][ T4822] show_stack+0x2c/0x3c [ 60.183200][ T4822] __dump_stack+0x30/0x40 [ 60.183862][ T4822] dump_stack_lvl+0xf8/0x160 [ 60.184558][ T4822] dump_stack+0x1c/0x5c [ 60.185162][ T4822] should_fail+0x3c0/0x51c [ 60.185836][ T4822] __should_failslab+0xbc/0x10c [ 60.186615][ T4822] should_failslab+0x10/0x28 [ 60.187357][ T4822] slab_pre_alloc_hook+0x64/0xec [ 60.188152][ T4822] __kmalloc_node+0xb8/0x520 [ 60.188895][ T4822] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.189739][ T4822] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.190630][ T4822] nbd_start_device+0x14c/0xb40 [ 60.191408][ T4822] nbd_ioctl+0x514/0xc50 [ 60.192158][ T4822] blkdev_ioctl+0x5f8/0xbb8 [ 60.192875][ T4822] block_ioctl+0xa4/0x118 [ 60.193541][ T4822] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.194229][ T4822] invoke_syscall+0x98/0x2b8 [ 60.194988][ T4822] el0_svc_common+0x138/0x258 [ 60.195752][ T4822] do_el0_svc+0x58/0x14c [ 60.196434][ T4822] el0_svc+0x78/0x1e0 [ 60.197053][ T4822] el0t_64_sync_handler+0xcc/0xe4 [ 60.197813][ T4822] el0t_64_sync+0x1a0/0x1a4 [ 60.198728][ T4822] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.201405][ T4823] block nbd0: shutting down sockets [ 60.366170][ T4826] FAULT_INJECTION: forcing a failure. [ 60.366170][ T4826] name failslab, interval 1, probability 0, space 0, times 0 [ 60.368233][ T4826] CPU: 1 PID: 4826 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.369457][ T4826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.371077][ T4826] Call trace: [ 60.371570][ T4826] dump_backtrace+0x0/0x43c [ 60.372300][ T4826] show_stack+0x2c/0x3c [ 60.372986][ T4826] __dump_stack+0x30/0x40 [ 60.373715][ T4826] dump_stack_lvl+0xf8/0x160 [ 60.374488][ T4826] dump_stack+0x1c/0x5c [ 60.375170][ T4826] should_fail+0x3c0/0x51c [ 60.375906][ T4826] __should_failslab+0xbc/0x10c [ 60.376623][ T4826] should_failslab+0x10/0x28 [ 60.377368][ T4826] slab_pre_alloc_hook+0x64/0xec [ 60.378162][ T4826] __kmalloc_node+0xb8/0x520 [ 60.378821][ T4826] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.379597][ T4826] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.380528][ T4826] nbd_start_device+0x14c/0xb40 [ 60.381371][ T4826] nbd_ioctl+0x514/0xc50 [ 60.382061][ T4826] blkdev_ioctl+0x5f8/0xbb8 [ 60.382813][ T4826] block_ioctl+0xa4/0x118 [ 60.383518][ T4826] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.384349][ T4826] invoke_syscall+0x98/0x2b8 [ 60.385075][ T4826] el0_svc_common+0x138/0x258 [ 60.385780][ T4826] do_el0_svc+0x58/0x14c [ 60.386489][ T4826] el0_svc+0x78/0x1e0 [ 60.387138][ T4826] el0t_64_sync_handler+0xcc/0xe4 [ 60.387963][ T4826] el0t_64_sync+0x1a0/0x1a4 [ 60.388766][ T4826] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.391376][ T4825] block nbd0: shutting down sockets [ 60.496124][ T4828] FAULT_INJECTION: forcing a failure. [ 60.496124][ T4828] name failslab, interval 1, probability 0, space 0, times 0 [ 60.497960][ T4828] CPU: 1 PID: 4828 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.499126][ T4828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.500544][ T4828] Call trace: [ 60.501013][ T4828] dump_backtrace+0x0/0x43c [ 60.501653][ T4828] show_stack+0x2c/0x3c [ 60.502273][ T4828] __dump_stack+0x30/0x40 [ 60.502891][ T4828] dump_stack_lvl+0xf8/0x160 [ 60.503534][ T4828] dump_stack+0x1c/0x5c [ 60.504151][ T4828] should_fail+0x3c0/0x51c [ 60.504819][ T4828] __should_failslab+0xbc/0x10c [ 60.505548][ T4828] should_failslab+0x10/0x28 [ 60.506269][ T4828] slab_pre_alloc_hook+0x64/0xec [ 60.506989][ T4828] __kmalloc_node+0xb8/0x520 [ 60.507706][ T4828] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.508476][ T4828] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.509382][ T4828] nbd_start_device+0x14c/0xb40 [ 60.510122][ T4828] nbd_ioctl+0x514/0xc50 [ 60.510823][ T4828] blkdev_ioctl+0x5f8/0xbb8 [ 60.511482][ T4828] block_ioctl+0xa4/0x118 [ 60.512220][ T4828] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.513072][ T4828] invoke_syscall+0x98/0x2b8 [ 60.513849][ T4828] el0_svc_common+0x138/0x258 [ 60.514593][ T4828] do_el0_svc+0x58/0x14c [ 60.515270][ T4828] el0_svc+0x78/0x1e0 [ 60.515874][ T4828] el0t_64_sync_handler+0xcc/0xe4 [ 60.516665][ T4828] el0t_64_sync+0x1a0/0x1a4 [ 60.517959][ T4828] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.520474][ T4829] block nbd0: shutting down sockets [ 60.646239][ T4831] FAULT_INJECTION: forcing a failure. [ 60.646239][ T4831] name failslab, interval 1, probability 0, space 0, times 0 [ 60.648311][ T4831] CPU: 0 PID: 4831 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.649402][ T4831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.650943][ T4831] Call trace: [ 60.651409][ T4831] dump_backtrace+0x0/0x43c [ 60.652084][ T4831] show_stack+0x2c/0x3c [ 60.652650][ T4831] __dump_stack+0x30/0x40 [ 60.653318][ T4831] dump_stack_lvl+0xf8/0x160 [ 60.653970][ T4831] dump_stack+0x1c/0x5c [ 60.654548][ T4831] should_fail+0x3c0/0x51c [ 60.655151][ T4831] __should_failslab+0xbc/0x10c [ 60.655955][ T4831] should_failslab+0x10/0x28 [ 60.656719][ T4831] slab_pre_alloc_hook+0x64/0xec [ 60.657541][ T4831] __kmalloc_node+0xb8/0x520 [ 60.658307][ T4831] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.659207][ T4831] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.660105][ T4831] nbd_start_device+0x14c/0xb40 [ 60.660845][ T4831] nbd_ioctl+0x514/0xc50 [ 60.661501][ T4831] blkdev_ioctl+0x5f8/0xbb8 [ 60.662222][ T4831] block_ioctl+0xa4/0x118 [ 60.662883][ T4831] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.663625][ T4831] invoke_syscall+0x98/0x2b8 [ 60.664253][ T4831] el0_svc_common+0x138/0x258 [ 60.664976][ T4831] do_el0_svc+0x58/0x14c [ 60.665612][ T4831] el0_svc+0x78/0x1e0 [ 60.666224][ T4831] el0t_64_sync_handler+0xcc/0xe4 [ 60.667062][ T4831] el0t_64_sync+0x1a0/0x1a4 [ 60.668545][ T4831] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.671185][ T4832] block nbd0: shutting down sockets [ 60.806298][ T4834] FAULT_INJECTION: forcing a failure. [ 60.806298][ T4834] name failslab, interval 1, probability 0, space 0, times 0 [ 60.808544][ T4834] CPU: 1 PID: 4834 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.809737][ T4834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 60.811380][ T4834] Call trace: [ 60.811913][ T4834] dump_backtrace+0x0/0x43c [ 60.812621][ T4834] show_stack+0x2c/0x3c [ 60.813342][ T4834] __dump_stack+0x30/0x40 [ 60.814020][ T4834] dump_stack_lvl+0xf8/0x160 [ 60.814769][ T4834] dump_stack+0x1c/0x5c [ 60.815409][ T4834] should_fail+0x3c0/0x51c [ 60.816053][ T4834] __should_failslab+0xbc/0x10c [ 60.816810][ T4834] should_failslab+0x10/0x28 [ 60.817556][ T4834] slab_pre_alloc_hook+0x64/0xec [ 60.818393][ T4834] __kmalloc_node+0xb8/0x520 [ 60.819179][ T4834] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 60.820083][ T4834] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 60.820993][ T4834] nbd_start_device+0x14c/0xb40 [ 60.821737][ T4834] nbd_ioctl+0x514/0xc50 [ 60.822403][ T4834] blkdev_ioctl+0x5f8/0xbb8 [ 60.823081][ T4834] block_ioctl+0xa4/0x118 [ 60.823744][ T4834] __arm64_sys_ioctl+0x14c/0x1c8 [ 60.824464][ T4834] invoke_syscall+0x98/0x2b8 [ 60.825179][ T4834] el0_svc_common+0x138/0x258 [ 60.825888][ T4834] do_el0_svc+0x58/0x14c [ 60.826618][ T4834] el0_svc+0x78/0x1e0 [ 60.827258][ T4834] el0t_64_sync_handler+0xcc/0xe4 [ 60.828064][ T4834] el0t_64_sync+0x1a0/0x1a4 [ 60.828946][ T4834] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 60.831619][ T4835] block nbd0: shutting down sockets [ 60.996412][ T4838] FAULT_INJECTION: forcing a failure. [ 60.996412][ T4838] name failslab, interval 1, probability 0, space 0, times 0 [ 60.998556][ T4838] CPU: 1 PID: 4838 Comm: syz-executor.0 Not tainted syzkaller #0 [ 60.999807][ T4838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.001379][ T4838] Call trace: [ 61.001860][ T4838] dump_backtrace+0x0/0x43c [ 61.002566][ T4838] show_stack+0x2c/0x3c [ 61.003235][ T4838] __dump_stack+0x30/0x40 [ 61.003973][ T4838] dump_stack_lvl+0xf8/0x160 [ 61.004731][ T4838] dump_stack+0x1c/0x5c [ 61.005431][ T4838] should_fail+0x3c0/0x51c [ 61.006178][ T4838] __should_failslab+0xbc/0x10c [ 61.006973][ T4838] should_failslab+0x10/0x28 [ 61.007694][ T4838] slab_pre_alloc_hook+0x64/0xec [ 61.008466][ T4838] __kmalloc_node+0xb8/0x520 [ 61.009192][ T4838] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 61.009988][ T4838] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 61.010835][ T4838] nbd_start_device+0x14c/0xb40 [ 61.011614][ T4838] nbd_ioctl+0x514/0xc50 [ 61.012344][ T4838] blkdev_ioctl+0x5f8/0xbb8 [ 61.013124][ T4838] block_ioctl+0xa4/0x118 [ 61.013853][ T4838] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.014646][ T4838] invoke_syscall+0x98/0x2b8 [ 61.015420][ T4838] el0_svc_common+0x138/0x258 [ 61.016196][ T4838] do_el0_svc+0x58/0x14c [ 61.016917][ T4838] el0_svc+0x78/0x1e0 [ 61.017509][ T4838] el0t_64_sync_handler+0xcc/0xe4 [ 61.018326][ T4838] el0t_64_sync+0x1a0/0x1a4 [ 61.019186][ T4838] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 61.021818][ T4837] block nbd0: shutting down sockets [ 61.166225][ T4840] FAULT_INJECTION: forcing a failure. [ 61.166225][ T4840] name failslab, interval 1, probability 0, space 0, times 0 [ 61.168201][ T4840] CPU: 0 PID: 4840 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.169268][ T4840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.170811][ T4840] Call trace: [ 61.171306][ T4840] dump_backtrace+0x0/0x43c [ 61.172057][ T4840] show_stack+0x2c/0x3c [ 61.172697][ T4840] __dump_stack+0x30/0x40 [ 61.173353][ T4840] dump_stack_lvl+0xf8/0x160 [ 61.174008][ T4840] dump_stack+0x1c/0x5c [ 61.174582][ T4840] should_fail+0x3c0/0x51c [ 61.175214][ T4840] __should_failslab+0xbc/0x10c [ 61.176021][ T4840] should_failslab+0x10/0x28 [ 61.176734][ T4840] slab_pre_alloc_hook+0x64/0xec [ 61.177456][ T4840] __kmalloc_node+0xb8/0x520 [ 61.178123][ T4840] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 61.178855][ T4840] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 61.179707][ T4840] nbd_start_device+0x14c/0xb40 [ 61.180336][ T4840] nbd_ioctl+0x514/0xc50 [ 61.180970][ T4840] blkdev_ioctl+0x5f8/0xbb8 [ 61.181609][ T4840] block_ioctl+0xa4/0x118 [ 61.182289][ T4840] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.183007][ T4840] invoke_syscall+0x98/0x2b8 [ 61.183681][ T4840] el0_svc_common+0x138/0x258 [ 61.184343][ T4840] do_el0_svc+0x58/0x14c [ 61.184976][ T4840] el0_svc+0x78/0x1e0 [ 61.185567][ T4840] el0t_64_sync_handler+0xcc/0xe4 [ 61.186301][ T4840] el0t_64_sync+0x1a0/0x1a4 [ 61.187421][ T4840] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 61.190064][ T4841] block nbd0: shutting down sockets [ 61.325006][ T4844] block nbd0: Device being setup by another task [ 61.326192][ T4843] FAULT_INJECTION: forcing a failure. [ 61.326192][ T4843] name failslab, interval 1, probability 0, space 0, times 0 [ 61.328160][ T4843] CPU: 0 PID: 4843 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.329263][ T4843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.330697][ T4843] Call trace: [ 61.331184][ T4843] dump_backtrace+0x0/0x43c [ 61.331840][ T4843] show_stack+0x2c/0x3c [ 61.332407][ T4843] __dump_stack+0x30/0x40 [ 61.333102][ T4843] dump_stack_lvl+0xf8/0x160 [ 61.333796][ T4843] dump_stack+0x1c/0x5c [ 61.334432][ T4843] should_fail+0x3c0/0x51c [ 61.335082][ T4843] __should_failslab+0xbc/0x10c [ 61.335794][ T4843] should_failslab+0x10/0x28 [ 61.336488][ T4843] slab_pre_alloc_hook+0x64/0xec [ 61.337251][ T4843] kmem_cache_alloc+0x94/0x3e4 [ 61.337931][ T4843] new_inode_pseudo+0x10c/0x1fc [ 61.338627][ T4843] new_inode+0x38/0x174 [ 61.339214][ T4843] debugfs_create_dir+0xec/0x3f4 [ 61.339980][ T4843] nbd_start_device+0x3c8/0xb40 [ 61.340701][ T4843] nbd_ioctl+0x514/0xc50 [ 61.341367][ T4843] blkdev_ioctl+0x5f8/0xbb8 [ 61.342053][ T4843] block_ioctl+0xa4/0x118 [ 61.342698][ T4843] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.343432][ T4843] invoke_syscall+0x98/0x2b8 [ 61.344097][ T4843] el0_svc_common+0x138/0x258 [ 61.344785][ T4843] do_el0_svc+0x58/0x14c [ 61.345427][ T4843] el0_svc+0x78/0x1e0 [ 61.346004][ T4843] el0t_64_sync_handler+0xcc/0xe4 [ 61.346749][ T4843] el0t_64_sync+0x1a0/0x1a4 [ 61.348088][ T4843] debugfs: out of free dentries, can not create directory 'nbd0' [ 61.349250][ T4843] block nbd0: Failed to create debugfs dir for 'nbd0' [ 61.358796][ T4844] block nbd0: shutting down sockets [ 61.506143][ T4846] FAULT_INJECTION: forcing a failure. [ 61.506143][ T4846] name failslab, interval 1, probability 0, space 0, times 0 [ 61.508162][ T4846] CPU: 1 PID: 4846 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.509325][ T4846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.510718][ T4846] Call trace: [ 61.511204][ T4846] dump_backtrace+0x0/0x43c [ 61.511842][ T4846] show_stack+0x2c/0x3c [ 61.512396][ T4846] __dump_stack+0x30/0x40 [ 61.513021][ T4846] dump_stack_lvl+0xf8/0x160 [ 61.513694][ T4846] dump_stack+0x1c/0x5c [ 61.514324][ T4846] should_fail+0x3c0/0x51c [ 61.515022][ T4846] __should_failslab+0xbc/0x10c [ 61.515750][ T4846] should_failslab+0x10/0x28 [ 61.516398][ T4846] slab_pre_alloc_hook+0x64/0xec [ 61.517126][ T4846] __kmalloc_node+0xb8/0x520 [ 61.517831][ T4846] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 61.518687][ T4846] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 61.519553][ T4846] nbd_start_device+0x14c/0xb40 [ 61.520299][ T4846] nbd_ioctl+0x514/0xc50 [ 61.520930][ T4846] blkdev_ioctl+0x5f8/0xbb8 [ 61.521636][ T4846] block_ioctl+0xa4/0x118 [ 61.522307][ T4846] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.523125][ T4846] invoke_syscall+0x98/0x2b8 [ 61.523865][ T4846] el0_svc_common+0x138/0x258 [ 61.524602][ T4846] do_el0_svc+0x58/0x14c [ 61.525307][ T4846] el0_svc+0x78/0x1e0 [ 61.525993][ T4846] el0t_64_sync_handler+0xcc/0xe4 [ 61.526754][ T4846] el0t_64_sync+0x1a0/0x1a4 [ 61.527839][ T4846] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 61.530353][ T4847] block nbd0: shutting down sockets [ 61.656130][ T4849] FAULT_INJECTION: forcing a failure. [ 61.656130][ T4849] name failslab, interval 1, probability 0, space 0, times 0 [ 61.658160][ T4849] CPU: 0 PID: 4849 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.659432][ T4849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.661051][ T4849] Call trace: [ 61.661564][ T4849] dump_backtrace+0x0/0x43c [ 61.662293][ T4849] show_stack+0x2c/0x3c [ 61.662863][ T4849] __dump_stack+0x30/0x40 [ 61.663513][ T4849] dump_stack_lvl+0xf8/0x160 [ 61.664184][ T4849] dump_stack+0x1c/0x5c [ 61.664822][ T4849] should_fail+0x3c0/0x51c [ 61.665478][ T4849] __should_failslab+0xbc/0x10c [ 61.666193][ T4849] should_failslab+0x10/0x28 [ 61.666925][ T4849] slab_pre_alloc_hook+0x64/0xec [ 61.667783][ T4849] __kmalloc_node+0xb8/0x520 [ 61.668498][ T4849] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 61.669369][ T4849] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 61.670193][ T4849] nbd_start_device+0x14c/0xb40 [ 61.670907][ T4849] nbd_ioctl+0x514/0xc50 [ 61.671531][ T4849] blkdev_ioctl+0x5f8/0xbb8 [ 61.672209][ T4849] block_ioctl+0xa4/0x118 [ 61.672900][ T4849] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.673581][ T4849] invoke_syscall+0x98/0x2b8 [ 61.674233][ T4849] el0_svc_common+0x138/0x258 [ 61.674922][ T4849] do_el0_svc+0x58/0x14c [ 61.675495][ T4849] el0_svc+0x78/0x1e0 [ 61.676112][ T4849] el0t_64_sync_handler+0xcc/0xe4 [ 61.676870][ T4849] el0t_64_sync+0x1a0/0x1a4 [ 61.677618][ T4849] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 61.680300][ T4850] block nbd0: shutting down sockets [ 61.794712][ T4853] block nbd0: Device being setup by another task [ 61.796783][ T4852] FAULT_INJECTION: forcing a failure. [ 61.796783][ T4852] name failslab, interval 1, probability 0, space 0, times 0 [ 61.798715][ T4852] CPU: 0 PID: 4852 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.799889][ T4852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 61.801441][ T4852] Call trace: [ 61.801945][ T4852] dump_backtrace+0x0/0x43c [ 61.802599][ T4852] show_stack+0x2c/0x3c [ 61.803197][ T4852] __dump_stack+0x30/0x40 [ 61.803906][ T4852] dump_stack_lvl+0xf8/0x160 [ 61.804525][ T4852] dump_stack+0x1c/0x5c [ 61.805216][ T4852] should_fail+0x3c0/0x51c [ 61.805927][ T4852] __should_failslab+0xbc/0x10c [ 61.806691][ T4852] should_failslab+0x10/0x28 [ 61.807458][ T4852] slab_pre_alloc_hook+0x64/0xec [ 61.808251][ T4852] kmem_cache_alloc+0x94/0x3e4 [ 61.809017][ T4852] new_inode_pseudo+0x10c/0x1fc [ 61.809806][ T4852] new_inode+0x38/0x174 [ 61.810518][ T4852] debugfs_create_dir+0xec/0x3f4 [ 61.811335][ T4852] nbd_start_device+0x3c8/0xb40 [ 61.812105][ T4852] nbd_ioctl+0x514/0xc50 [ 61.812757][ T4852] blkdev_ioctl+0x5f8/0xbb8 [ 61.813422][ T4852] block_ioctl+0xa4/0x118 [ 61.814097][ T4852] __arm64_sys_ioctl+0x14c/0x1c8 [ 61.814867][ T4852] invoke_syscall+0x98/0x2b8 [ 61.815582][ T4852] el0_svc_common+0x138/0x258 [ 61.816284][ T4852] do_el0_svc+0x58/0x14c [ 61.816889][ T4852] el0_svc+0x78/0x1e0 [ 61.817495][ T4852] el0t_64_sync_handler+0xcc/0xe4 [ 61.818221][ T4852] el0t_64_sync+0x1a0/0x1a4 [ 61.819001][ T4852] debugfs: out of free dentries, can not create directory 'nbd0' [ 61.820221][ T4852] block nbd0: Failed to create debugfs dir for 'nbd0' [ 61.846869][ T4853] block nbd0: shutting down sockets [ 61.996226][ T4855] FAULT_INJECTION: forcing a failure. [ 61.996226][ T4855] name failslab, interval 1, probability 0, space 0, times 0 [ 61.998190][ T4855] CPU: 1 PID: 4855 Comm: syz-executor.0 Not tainted syzkaller #0 [ 61.999490][ T4855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.001062][ T4855] Call trace: [ 62.001577][ T4855] dump_backtrace+0x0/0x43c [ 62.002310][ T4855] show_stack+0x2c/0x3c [ 62.002947][ T4855] __dump_stack+0x30/0x40 [ 62.003631][ T4855] dump_stack_lvl+0xf8/0x160 [ 62.004363][ T4855] dump_stack+0x1c/0x5c [ 62.005045][ T4855] should_fail+0x3c0/0x51c [ 62.005753][ T4855] __should_failslab+0xbc/0x10c [ 62.006519][ T4855] should_failslab+0x10/0x28 [ 62.007246][ T4855] slab_pre_alloc_hook+0x64/0xec [ 62.008066][ T4855] __kmalloc_node+0xb8/0x520 [ 62.008895][ T4855] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 62.009768][ T4855] nbd_start_device+0x14c/0xb40 [ 62.010489][ T4855] nbd_ioctl+0x514/0xc50 [ 62.011162][ T4855] blkdev_ioctl+0x5f8/0xbb8 [ 62.011814][ T4855] block_ioctl+0xa4/0x118 [ 62.012460][ T4855] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.013171][ T4855] invoke_syscall+0x98/0x2b8 [ 62.013851][ T4855] el0_svc_common+0x138/0x258 [ 62.014589][ T4855] do_el0_svc+0x58/0x14c [ 62.015220][ T4855] el0_svc+0x78/0x1e0 [ 62.015811][ T4855] el0t_64_sync_handler+0xcc/0xe4 [ 62.016598][ T4855] el0t_64_sync+0x1a0/0x1a4 [ 62.019836][ T4856] block nbd0: shutting down sockets [ 62.146116][ T4858] FAULT_INJECTION: forcing a failure. [ 62.146116][ T4858] name failslab, interval 1, probability 0, space 0, times 0 [ 62.147994][ T4858] CPU: 0 PID: 4858 Comm: syz-executor.0 Not tainted syzkaller #0 [ 62.149115][ T4858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.150677][ T4858] Call trace: [ 62.151125][ T4858] dump_backtrace+0x0/0x43c [ 62.151795][ T4858] show_stack+0x2c/0x3c [ 62.152393][ T4858] __dump_stack+0x30/0x40 [ 62.153036][ T4858] dump_stack_lvl+0xf8/0x160 [ 62.153707][ T4858] dump_stack+0x1c/0x5c [ 62.154306][ T4858] should_fail+0x3c0/0x51c [ 62.154994][ T4858] __should_failslab+0xbc/0x10c [ 62.155698][ T4858] should_failslab+0x10/0x28 [ 62.156399][ T4858] slab_pre_alloc_hook+0x64/0xec [ 62.157084][ T4858] __kmalloc_node+0xb8/0x520 [ 62.157741][ T4858] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 62.158526][ T4858] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 62.159431][ T4858] nbd_start_device+0x14c/0xb40 [ 62.160170][ T4858] nbd_ioctl+0x514/0xc50 [ 62.160869][ T4858] blkdev_ioctl+0x5f8/0xbb8 [ 62.161544][ T4858] block_ioctl+0xa4/0x118 [ 62.162255][ T4858] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.163082][ T4858] invoke_syscall+0x98/0x2b8 [ 62.163813][ T4858] el0_svc_common+0x138/0x258 [ 62.164542][ T4858] do_el0_svc+0x58/0x14c [ 62.165168][ T4858] el0_svc+0x78/0x1e0 [ 62.165786][ T4858] el0t_64_sync_handler+0xcc/0xe4 [ 62.166440][ T4858] el0t_64_sync+0x1a0/0x1a4 [ 62.167761][ T4858] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 62.170719][ T4859] block nbd0: shutting down sockets [ 62.306289][ T4861] FAULT_INJECTION: forcing a failure. [ 62.306289][ T4861] name failslab, interval 1, probability 0, space 0, times 0 [ 62.308179][ T4861] CPU: 1 PID: 4861 Comm: syz-executor.0 Not tainted syzkaller #0 [ 62.309320][ T4861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.310950][ T4861] Call trace: [ 62.311444][ T4861] dump_backtrace+0x0/0x43c [ 62.312193][ T4861] show_stack+0x2c/0x3c [ 62.312872][ T4861] __dump_stack+0x30/0x40 [ 62.313469][ T4861] dump_stack_lvl+0xf8/0x160 [ 62.314093][ T4861] dump_stack+0x1c/0x5c [ 62.314766][ T4861] should_fail+0x3c0/0x51c [ 62.315473][ T4861] __should_failslab+0xbc/0x10c [ 62.316202][ T4861] should_failslab+0x10/0x28 [ 62.316882][ T4861] slab_pre_alloc_hook+0x64/0xec [ 62.317654][ T4861] __kmalloc_node+0xb8/0x520 [ 62.318317][ T4861] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 62.319272][ T4861] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 62.320222][ T4861] nbd_start_device+0x14c/0xb40 [ 62.321006][ T4861] nbd_ioctl+0x514/0xc50 [ 62.321688][ T4861] blkdev_ioctl+0x5f8/0xbb8 [ 62.322365][ T4861] block_ioctl+0xa4/0x118 [ 62.323066][ T4861] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.323867][ T4861] invoke_syscall+0x98/0x2b8 [ 62.324627][ T4861] el0_svc_common+0x138/0x258 [ 62.325383][ T4861] do_el0_svc+0x58/0x14c [ 62.326008][ T4861] el0_svc+0x78/0x1e0 [ 62.326689][ T4861] el0t_64_sync_handler+0xcc/0xe4 [ 62.327513][ T4861] el0t_64_sync+0x1a0/0x1a4 [ 62.328831][ T4861] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 62.332386][ T4862] block nbd0: shutting down sockets [ 62.536149][ T4865] FAULT_INJECTION: forcing a failure. [ 62.536149][ T4865] name failslab, interval 1, probability 0, space 0, times 0 [ 62.538195][ T4865] CPU: 0 PID: 4865 Comm: syz-executor.0 Not tainted syzkaller #0 [ 62.539454][ T4865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.541056][ T4865] Call trace: [ 62.541528][ T4865] dump_backtrace+0x0/0x43c [ 62.542199][ T4865] show_stack+0x2c/0x3c [ 62.542788][ T4865] __dump_stack+0x30/0x40 [ 62.543407][ T4865] dump_stack_lvl+0xf8/0x160 [ 62.544147][ T4865] dump_stack+0x1c/0x5c [ 62.544747][ T4865] should_fail+0x3c0/0x51c [ 62.545441][ T4865] __should_failslab+0xbc/0x10c [ 62.546283][ T4865] should_failslab+0x10/0x28 [ 62.546988][ T4865] slab_pre_alloc_hook+0x64/0xec [ 62.547805][ T4865] __kmalloc_node+0xb8/0x520 [ 62.548514][ T4865] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 62.549343][ T4865] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 62.550230][ T4865] nbd_start_device+0x14c/0xb40 [ 62.550939][ T4865] nbd_ioctl+0x514/0xc50 [ 62.551513][ T4865] blkdev_ioctl+0x5f8/0xbb8 [ 62.552233][ T4865] block_ioctl+0xa4/0x118 [ 62.552872][ T4865] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.553563][ T4865] invoke_syscall+0x98/0x2b8 [ 62.554289][ T4865] el0_svc_common+0x138/0x258 [ 62.555010][ T4865] do_el0_svc+0x58/0x14c [ 62.555678][ T4865] el0_svc+0x78/0x1e0 [ 62.556354][ T4865] el0t_64_sync_handler+0xcc/0xe4 [ 62.557168][ T4865] el0t_64_sync+0x1a0/0x1a4 [ 62.557975][ T4865] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 62.560944][ T4864] block nbd0: shutting down sockets [ 62.736225][ T4869] FAULT_INJECTION: forcing a failure. [ 62.736225][ T4869] name failslab, interval 1, probability 0, space 0, times 0 [ 62.738173][ T4869] CPU: 1 PID: 4869 Comm: syz-executor.0 Not tainted syzkaller #0 [ 62.739312][ T4869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.740832][ T4869] Call trace: [ 62.741375][ T4869] dump_backtrace+0x0/0x43c [ 62.742138][ T4869] show_stack+0x2c/0x3c [ 62.742797][ T4869] __dump_stack+0x30/0x40 [ 62.743471][ T4869] dump_stack_lvl+0xf8/0x160 [ 62.744194][ T4869] dump_stack+0x1c/0x5c [ 62.744867][ T4869] should_fail+0x3c0/0x51c [ 62.745577][ T4869] __should_failslab+0xbc/0x10c [ 62.746357][ T4869] should_failslab+0x10/0x28 [ 62.747056][ T4869] slab_pre_alloc_hook+0x64/0xec [ 62.747855][ T4869] __kmalloc_node+0xb8/0x520 [ 62.748610][ T4869] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 62.749427][ T4869] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 62.750266][ T4869] nbd_start_device+0x14c/0xb40 [ 62.750995][ T4869] nbd_ioctl+0x514/0xc50 [ 62.751668][ T4869] blkdev_ioctl+0x5f8/0xbb8 [ 62.752415][ T4869] block_ioctl+0xa4/0x118 [ 62.753161][ T4869] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.753959][ T4869] invoke_syscall+0x98/0x2b8 [ 62.754654][ T4869] el0_svc_common+0x138/0x258 [ 62.755368][ T4869] do_el0_svc+0x58/0x14c [ 62.755995][ T4869] el0_svc+0x78/0x1e0 [ 62.756627][ T4869] el0t_64_sync_handler+0xcc/0xe4 [ 62.757447][ T4869] el0t_64_sync+0x1a0/0x1a4 [ 62.758264][ T4869] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 62.760968][ T4868] block nbd0: shutting down sockets [ 62.906232][ T4872] FAULT_INJECTION: forcing a failure. [ 62.906232][ T4872] name failslab, interval 1, probability 0, space 0, times 0 [ 62.908345][ T4872] CPU: 1 PID: 4872 Comm: syz-executor.0 Not tainted syzkaller #0 [ 62.909509][ T4872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 62.910913][ T4872] Call trace: [ 62.911340][ T4872] dump_backtrace+0x0/0x43c [ 62.912108][ T4872] show_stack+0x2c/0x3c [ 62.912825][ T4872] __dump_stack+0x30/0x40 [ 62.913499][ T4872] dump_stack_lvl+0xf8/0x160 [ 62.914232][ T4872] dump_stack+0x1c/0x5c [ 62.914888][ T4872] should_fail+0x3c0/0x51c [ 62.915582][ T4872] __should_failslab+0xbc/0x10c [ 62.916344][ T4872] should_failslab+0x10/0x28 [ 62.917089][ T4872] slab_pre_alloc_hook+0x64/0xec [ 62.917877][ T4872] __kmalloc_node+0xb8/0x520 [ 62.918583][ T4872] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 62.919430][ T4872] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 62.920302][ T4872] nbd_start_device+0x14c/0xb40 [ 62.921020][ T4872] nbd_ioctl+0x514/0xc50 [ 62.921731][ T4872] blkdev_ioctl+0x5f8/0xbb8 [ 62.922439][ T4872] block_ioctl+0xa4/0x118 [ 62.923086][ T4872] __arm64_sys_ioctl+0x14c/0x1c8 [ 62.923817][ T4872] invoke_syscall+0x98/0x2b8 [ 62.924505][ T4872] el0_svc_common+0x138/0x258 [ 62.925223][ T4872] do_el0_svc+0x58/0x14c [ 62.925894][ T4872] el0_svc+0x78/0x1e0 [ 62.926523][ T4872] el0t_64_sync_handler+0xcc/0xe4 [ 62.927301][ T4872] el0t_64_sync+0x1a0/0x1a4 [ 62.928152][ T4872] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 62.930870][ T4871] block nbd0: shutting down sockets [ 63.096146][ T4875] FAULT_INJECTION: forcing a failure. [ 63.096146][ T4875] name failslab, interval 1, probability 0, space 0, times 0 [ 63.098043][ T4875] CPU: 0 PID: 4875 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.099293][ T4875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.100853][ T4875] Call trace: [ 63.101402][ T4875] dump_backtrace+0x0/0x43c [ 63.102072][ T4875] show_stack+0x2c/0x3c [ 63.102690][ T4875] __dump_stack+0x30/0x40 [ 63.103320][ T4875] dump_stack_lvl+0xf8/0x160 [ 63.104002][ T4875] dump_stack+0x1c/0x5c [ 63.104698][ T4875] should_fail+0x3c0/0x51c [ 63.105380][ T4875] __should_failslab+0xbc/0x10c [ 63.106115][ T4875] should_failslab+0x10/0x28 [ 63.106825][ T4875] slab_pre_alloc_hook+0x64/0xec [ 63.107500][ T4875] __kmalloc_node+0xb8/0x520 [ 63.108133][ T4875] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.108870][ T4875] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.109722][ T4875] nbd_start_device+0x14c/0xb40 [ 63.110553][ T4875] nbd_ioctl+0x514/0xc50 [ 63.111281][ T4875] blkdev_ioctl+0x5f8/0xbb8 [ 63.112055][ T4875] block_ioctl+0xa4/0x118 [ 63.112785][ T4875] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.113549][ T4875] invoke_syscall+0x98/0x2b8 [ 63.114171][ T4875] el0_svc_common+0x138/0x258 [ 63.114871][ T4875] do_el0_svc+0x58/0x14c [ 63.115485][ T4875] el0_svc+0x78/0x1e0 [ 63.116044][ T4875] el0t_64_sync_handler+0xcc/0xe4 [ 63.116710][ T4875] el0t_64_sync+0x1a0/0x1a4 [ 63.117608][ T4875] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.120250][ T4874] block nbd0: shutting down sockets 1970/01/01 00:01:03 executed programs: 83 [ 63.296301][ T4877] FAULT_INJECTION: forcing a failure. [ 63.296301][ T4877] name failslab, interval 1, probability 0, space 0, times 0 [ 63.298584][ T4877] CPU: 1 PID: 4877 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.299713][ T4877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.301140][ T4877] Call trace: [ 63.301601][ T4877] dump_backtrace+0x0/0x43c [ 63.302183][ T4877] show_stack+0x2c/0x3c [ 63.302756][ T4877] __dump_stack+0x30/0x40 [ 63.303471][ T4877] dump_stack_lvl+0xf8/0x160 [ 63.304192][ T4877] dump_stack+0x1c/0x5c [ 63.304809][ T4877] should_fail+0x3c0/0x51c [ 63.305465][ T4877] __should_failslab+0xbc/0x10c [ 63.306244][ T4877] should_failslab+0x10/0x28 [ 63.307047][ T4877] slab_pre_alloc_hook+0x64/0xec [ 63.307887][ T4877] __kmalloc_node+0xb8/0x520 [ 63.308655][ T4877] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.309552][ T4877] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.310491][ T4877] nbd_start_device+0x14c/0xb40 [ 63.311286][ T4877] nbd_ioctl+0x514/0xc50 [ 63.311967][ T4877] blkdev_ioctl+0x5f8/0xbb8 [ 63.312754][ T4877] block_ioctl+0xa4/0x118 [ 63.313441][ T4877] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.314230][ T4877] invoke_syscall+0x98/0x2b8 [ 63.314956][ T4877] el0_svc_common+0x138/0x258 [ 63.315669][ T4877] do_el0_svc+0x58/0x14c [ 63.316364][ T4877] el0_svc+0x78/0x1e0 [ 63.317038][ T4877] el0t_64_sync_handler+0xcc/0xe4 [ 63.317804][ T4877] el0t_64_sync+0x1a0/0x1a4 [ 63.318593][ T4877] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.321332][ T4878] block nbd0: shutting down sockets [ 63.446071][ T4880] FAULT_INJECTION: forcing a failure. [ 63.446071][ T4880] name failslab, interval 1, probability 0, space 0, times 0 [ 63.447998][ T4880] CPU: 0 PID: 4880 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.449015][ T4880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.450446][ T4880] Call trace: [ 63.450931][ T4880] dump_backtrace+0x0/0x43c [ 63.451609][ T4880] show_stack+0x2c/0x3c [ 63.452290][ T4880] __dump_stack+0x30/0x40 [ 63.452935][ T4880] dump_stack_lvl+0xf8/0x160 [ 63.453596][ T4880] dump_stack+0x1c/0x5c [ 63.454236][ T4880] should_fail+0x3c0/0x51c [ 63.454890][ T4880] __should_failslab+0xbc/0x10c [ 63.455639][ T4880] should_failslab+0x10/0x28 [ 63.456345][ T4880] slab_pre_alloc_hook+0x64/0xec [ 63.457096][ T4880] __kmalloc_node+0xb8/0x520 [ 63.457798][ T4880] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.458634][ T4880] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.459512][ T4880] nbd_start_device+0x14c/0xb40 [ 63.460251][ T4880] nbd_ioctl+0x514/0xc50 [ 63.460864][ T4880] blkdev_ioctl+0x5f8/0xbb8 [ 63.461488][ T4880] block_ioctl+0xa4/0x118 [ 63.462099][ T4880] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.462858][ T4880] invoke_syscall+0x98/0x2b8 [ 63.463542][ T4880] el0_svc_common+0x138/0x258 [ 63.464230][ T4880] do_el0_svc+0x58/0x14c [ 63.464828][ T4880] el0_svc+0x78/0x1e0 [ 63.465455][ T4880] el0t_64_sync_handler+0xcc/0xe4 [ 63.466183][ T4880] el0t_64_sync+0x1a0/0x1a4 [ 63.466981][ T4880] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.469615][ T4881] block nbd0: shutting down sockets [ 63.596155][ T4883] FAULT_INJECTION: forcing a failure. [ 63.596155][ T4883] name failslab, interval 1, probability 0, space 0, times 0 [ 63.598165][ T4883] CPU: 1 PID: 4883 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.599406][ T4883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.600976][ T4883] Call trace: [ 63.601490][ T4883] dump_backtrace+0x0/0x43c [ 63.602188][ T4883] show_stack+0x2c/0x3c [ 63.602886][ T4883] __dump_stack+0x30/0x40 [ 63.603632][ T4883] dump_stack_lvl+0xf8/0x160 [ 63.604419][ T4883] dump_stack+0x1c/0x5c [ 63.605031][ T4883] should_fail+0x3c0/0x51c [ 63.605751][ T4883] __should_failslab+0xbc/0x10c [ 63.606494][ T4883] should_failslab+0x10/0x28 [ 63.607223][ T4883] slab_pre_alloc_hook+0x64/0xec [ 63.607953][ T4883] __kmalloc_node+0xb8/0x520 [ 63.608629][ T4883] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.609459][ T4883] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.610340][ T4883] nbd_start_device+0x14c/0xb40 [ 63.611101][ T4883] nbd_ioctl+0x514/0xc50 [ 63.611722][ T4883] blkdev_ioctl+0x5f8/0xbb8 [ 63.612389][ T4883] block_ioctl+0xa4/0x118 [ 63.613051][ T4883] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.613726][ T4883] invoke_syscall+0x98/0x2b8 [ 63.614416][ T4883] el0_svc_common+0x138/0x258 [ 63.615209][ T4883] do_el0_svc+0x58/0x14c [ 63.615898][ T4883] el0_svc+0x78/0x1e0 [ 63.616508][ T4883] el0t_64_sync_handler+0xcc/0xe4 [ 63.617267][ T4883] el0t_64_sync+0x1a0/0x1a4 [ 63.618396][ T4883] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.621064][ T4884] block nbd0: shutting down sockets [ 63.766226][ T4886] FAULT_INJECTION: forcing a failure. [ 63.766226][ T4886] name failslab, interval 1, probability 0, space 0, times 0 [ 63.768251][ T4886] CPU: 0 PID: 4886 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.769511][ T4886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.770965][ T4886] Call trace: [ 63.771409][ T4886] dump_backtrace+0x0/0x43c [ 63.772061][ T4886] show_stack+0x2c/0x3c [ 63.772662][ T4886] __dump_stack+0x30/0x40 [ 63.773354][ T4886] dump_stack_lvl+0xf8/0x160 [ 63.774056][ T4886] dump_stack+0x1c/0x5c [ 63.774696][ T4886] should_fail+0x3c0/0x51c [ 63.775410][ T4886] __should_failslab+0xbc/0x10c [ 63.776137][ T4886] should_failslab+0x10/0x28 [ 63.776825][ T4886] slab_pre_alloc_hook+0x64/0xec [ 63.777578][ T4886] __kmalloc_node+0xb8/0x520 [ 63.778324][ T4886] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.779175][ T4886] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.780053][ T4886] nbd_start_device+0x14c/0xb40 [ 63.780817][ T4886] nbd_ioctl+0x514/0xc50 [ 63.781428][ T4886] blkdev_ioctl+0x5f8/0xbb8 [ 63.782163][ T4886] block_ioctl+0xa4/0x118 [ 63.782883][ T4886] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.783632][ T4886] invoke_syscall+0x98/0x2b8 [ 63.784276][ T4886] el0_svc_common+0x138/0x258 [ 63.785053][ T4886] do_el0_svc+0x58/0x14c [ 63.785666][ T4886] el0_svc+0x78/0x1e0 [ 63.786299][ T4886] el0t_64_sync_handler+0xcc/0xe4 [ 63.787099][ T4886] el0t_64_sync+0x1a0/0x1a4 [ 63.788281][ T4886] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.791279][ T4887] block nbd0: shutting down sockets [ 63.926225][ T4889] FAULT_INJECTION: forcing a failure. [ 63.926225][ T4889] name failslab, interval 1, probability 0, space 0, times 0 [ 63.928215][ T4889] CPU: 1 PID: 4889 Comm: syz-executor.0 Not tainted syzkaller #0 [ 63.929380][ T4889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 63.930807][ T4889] Call trace: [ 63.931329][ T4889] dump_backtrace+0x0/0x43c [ 63.932045][ T4889] show_stack+0x2c/0x3c [ 63.932651][ T4889] __dump_stack+0x30/0x40 [ 63.933330][ T4889] dump_stack_lvl+0xf8/0x160 [ 63.934061][ T4889] dump_stack+0x1c/0x5c [ 63.934725][ T4889] should_fail+0x3c0/0x51c [ 63.935387][ T4889] __should_failslab+0xbc/0x10c [ 63.936158][ T4889] should_failslab+0x10/0x28 [ 63.936852][ T4889] slab_pre_alloc_hook+0x64/0xec [ 63.937602][ T4889] __kmalloc_node+0xb8/0x520 [ 63.938332][ T4889] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 63.939142][ T4889] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 63.940031][ T4889] nbd_start_device+0x14c/0xb40 [ 63.940757][ T4889] nbd_ioctl+0x514/0xc50 [ 63.941472][ T4889] blkdev_ioctl+0x5f8/0xbb8 [ 63.942176][ T4889] block_ioctl+0xa4/0x118 [ 63.942881][ T4889] __arm64_sys_ioctl+0x14c/0x1c8 [ 63.943689][ T4889] invoke_syscall+0x98/0x2b8 [ 63.944388][ T4889] el0_svc_common+0x138/0x258 [ 63.945121][ T4889] do_el0_svc+0x58/0x14c [ 63.945773][ T4889] el0_svc+0x78/0x1e0 [ 63.946339][ T4889] el0t_64_sync_handler+0xcc/0xe4 [ 63.947083][ T4889] el0t_64_sync+0x1a0/0x1a4 [ 63.948160][ T4889] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 63.951121][ T4890] block nbd0: shutting down sockets [ 64.106182][ T4893] FAULT_INJECTION: forcing a failure. [ 64.106182][ T4893] name failslab, interval 1, probability 0, space 0, times 0 [ 64.108216][ T4893] CPU: 1 PID: 4893 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.109356][ T4893] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.110824][ T4893] Call trace: [ 64.111302][ T4893] dump_backtrace+0x0/0x43c [ 64.112004][ T4893] show_stack+0x2c/0x3c [ 64.112664][ T4893] __dump_stack+0x30/0x40 [ 64.113308][ T4893] dump_stack_lvl+0xf8/0x160 [ 64.114012][ T4893] dump_stack+0x1c/0x5c [ 64.114648][ T4893] should_fail+0x3c0/0x51c [ 64.115330][ T4893] __should_failslab+0xbc/0x10c [ 64.116040][ T4893] should_failslab+0x10/0x28 [ 64.116694][ T4893] slab_pre_alloc_hook+0x64/0xec [ 64.117446][ T4893] __kmalloc_node+0xb8/0x520 [ 64.118217][ T4893] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 64.119051][ T4893] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 64.119877][ T4893] nbd_start_device+0x14c/0xb40 [ 64.120603][ T4893] nbd_ioctl+0x514/0xc50 [ 64.121280][ T4893] blkdev_ioctl+0x5f8/0xbb8 [ 64.122011][ T4893] block_ioctl+0xa4/0x118 [ 64.122682][ T4893] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.123438][ T4893] invoke_syscall+0x98/0x2b8 [ 64.124176][ T4893] el0_svc_common+0x138/0x258 [ 64.124965][ T4893] do_el0_svc+0x58/0x14c [ 64.125599][ T4893] el0_svc+0x78/0x1e0 [ 64.126153][ T4893] el0t_64_sync_handler+0xcc/0xe4 [ 64.126942][ T4893] el0t_64_sync+0x1a0/0x1a4 [ 64.127776][ T4893] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 64.130373][ T4892] block nbd0: shutting down sockets [ 64.256141][ T4895] FAULT_INJECTION: forcing a failure. [ 64.256141][ T4895] name failslab, interval 1, probability 0, space 0, times 0 [ 64.258174][ T4895] CPU: 0 PID: 4895 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.259303][ T4895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.260619][ T4895] Call trace: [ 64.261093][ T4895] dump_backtrace+0x0/0x43c [ 64.261826][ T4895] show_stack+0x2c/0x3c [ 64.262420][ T4895] __dump_stack+0x30/0x40 [ 64.263041][ T4895] dump_stack_lvl+0xf8/0x160 [ 64.263700][ T4895] dump_stack+0x1c/0x5c [ 64.264266][ T4895] should_fail+0x3c0/0x51c [ 64.264953][ T4895] __should_failslab+0xbc/0x10c [ 64.265690][ T4895] should_failslab+0x10/0x28 [ 64.266419][ T4895] slab_pre_alloc_hook+0x64/0xec [ 64.267205][ T4895] __kmalloc_node+0xb8/0x520 [ 64.267888][ T4895] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 64.268642][ T4895] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 64.269497][ T4895] nbd_start_device+0x14c/0xb40 [ 64.270207][ T4895] nbd_ioctl+0x514/0xc50 [ 64.270757][ T4895] blkdev_ioctl+0x5f8/0xbb8 [ 64.271479][ T4895] block_ioctl+0xa4/0x118 [ 64.272156][ T4895] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.272974][ T4895] invoke_syscall+0x98/0x2b8 [ 64.273737][ T4895] el0_svc_common+0x138/0x258 [ 64.274489][ T4895] do_el0_svc+0x58/0x14c [ 64.275131][ T4895] el0_svc+0x78/0x1e0 [ 64.275694][ T4895] el0t_64_sync_handler+0xcc/0xe4 [ 64.276485][ T4895] el0t_64_sync+0x1a0/0x1a4 [ 64.277289][ T4895] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 64.279909][ T4896] block nbd0: shutting down sockets [ 64.414726][ T4899] block nbd0: Device being setup by another task [ 64.415865][ T4898] FAULT_INJECTION: forcing a failure. [ 64.415865][ T4898] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 64.417815][ T4898] CPU: 0 PID: 4898 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.418891][ T4898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.420315][ T4898] Call trace: [ 64.420763][ T4898] dump_backtrace+0x0/0x43c [ 64.421458][ T4898] show_stack+0x2c/0x3c [ 64.422047][ T4898] __dump_stack+0x30/0x40 [ 64.422747][ T4898] dump_stack_lvl+0xf8/0x160 [ 64.423441][ T4898] dump_stack+0x1c/0x5c [ 64.424008][ T4898] should_fail+0x3c0/0x51c [ 64.424681][ T4898] should_fail_alloc_page+0x74/0xa8 [ 64.425462][ T4898] prepare_alloc_pages+0x160/0x460 [ 64.426285][ T4898] __alloc_pages+0x108/0x470 [ 64.427002][ T4898] alloc_pages+0x34c/0x5c0 [ 64.427704][ T4898] new_slab+0xe0/0x55c [ 64.428388][ T4898] ___slab_alloc+0x6c0/0xda8 [ 64.429120][ T4898] __slab_alloc+0x68/0xc0 [ 64.429751][ T4898] kmem_cache_alloc+0x2ac/0x3e4 [ 64.430463][ T4898] __d_alloc+0x3c/0x65c [ 64.431058][ T4898] d_alloc_parallel+0x80/0x1104 [ 64.431812][ T4898] __lookup_slow+0x104/0x380 [ 64.432431][ T4898] lookup_one_len+0x178/0x28c [ 64.433086][ T4898] start_creating+0x19c/0x2e0 [ 64.433749][ T4898] debugfs_create_dir+0x30/0x3f4 [ 64.434536][ T4898] nbd_start_device+0x3c8/0xb40 [ 64.435238][ T4898] nbd_ioctl+0x514/0xc50 [ 64.435877][ T4898] blkdev_ioctl+0x5f8/0xbb8 [ 64.436540][ T4898] block_ioctl+0xa4/0x118 [ 64.437220][ T4898] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.437905][ T4898] invoke_syscall+0x98/0x2b8 [ 64.438554][ T4898] el0_svc_common+0x138/0x258 [ 64.439279][ T4898] do_el0_svc+0x58/0x14c [ 64.439938][ T4898] el0_svc+0x78/0x1e0 [ 64.440508][ T4898] el0t_64_sync_handler+0xcc/0xe4 [ 64.441298][ T4898] el0t_64_sync+0x1a0/0x1a4 [ 64.448852][ T4899] block nbd0: shutting down sockets [ 64.596126][ T4901] FAULT_INJECTION: forcing a failure. [ 64.596126][ T4901] name failslab, interval 1, probability 0, space 0, times 0 [ 64.598039][ T4901] CPU: 1 PID: 4901 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.599060][ T4901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.600678][ T4901] Call trace: [ 64.601190][ T4901] dump_backtrace+0x0/0x43c [ 64.601918][ T4901] show_stack+0x2c/0x3c [ 64.602551][ T4901] __dump_stack+0x30/0x40 [ 64.603160][ T4901] dump_stack_lvl+0xf8/0x160 [ 64.603824][ T4901] dump_stack+0x1c/0x5c [ 64.604474][ T4901] should_fail+0x3c0/0x51c [ 64.605183][ T4901] __should_failslab+0xbc/0x10c [ 64.606011][ T4901] should_failslab+0x10/0x28 [ 64.606830][ T4901] slab_pre_alloc_hook+0x64/0xec [ 64.607619][ T4901] __kmalloc_node+0xb8/0x520 [ 64.608291][ T4901] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 64.609128][ T4901] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 64.610078][ T4901] nbd_start_device+0x14c/0xb40 [ 64.610874][ T4901] nbd_ioctl+0x514/0xc50 [ 64.611590][ T4901] blkdev_ioctl+0x5f8/0xbb8 [ 64.612327][ T4901] block_ioctl+0xa4/0x118 [ 64.613047][ T4901] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.613834][ T4901] invoke_syscall+0x98/0x2b8 [ 64.614566][ T4901] el0_svc_common+0x138/0x258 [ 64.615343][ T4901] do_el0_svc+0x58/0x14c [ 64.616051][ T4901] el0_svc+0x78/0x1e0 [ 64.616646][ T4901] el0t_64_sync_handler+0xcc/0xe4 [ 64.617368][ T4901] el0t_64_sync+0x1a0/0x1a4 [ 64.618132][ T4901] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 64.620802][ T4902] block nbd0: shutting down sockets [ 64.764715][ T4905] block nbd0: Device being setup by another task [ 64.765878][ T4904] FAULT_INJECTION: forcing a failure. [ 64.765878][ T4904] name failslab, interval 1, probability 0, space 0, times 0 [ 64.767893][ T4904] CPU: 1 PID: 4904 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.769014][ T4904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.770633][ T4904] Call trace: [ 64.771193][ T4904] dump_backtrace+0x0/0x43c [ 64.771926][ T4904] show_stack+0x2c/0x3c [ 64.772608][ T4904] __dump_stack+0x30/0x40 [ 64.773316][ T4904] dump_stack_lvl+0xf8/0x160 [ 64.774121][ T4904] dump_stack+0x1c/0x5c [ 64.774791][ T4904] should_fail+0x3c0/0x51c [ 64.775457][ T4904] __should_failslab+0xbc/0x10c [ 64.776209][ T4904] should_failslab+0x10/0x28 [ 64.776865][ T4904] slab_pre_alloc_hook+0x64/0xec [ 64.777625][ T4904] kmem_cache_alloc+0x94/0x3e4 [ 64.778413][ T4904] new_inode_pseudo+0x10c/0x1fc [ 64.779226][ T4904] new_inode+0x38/0x174 [ 64.779861][ T4904] debugfs_create_dir+0xec/0x3f4 [ 64.780645][ T4904] nbd_start_device+0x3c8/0xb40 [ 64.781399][ T4904] nbd_ioctl+0x514/0xc50 [ 64.782015][ T4904] blkdev_ioctl+0x5f8/0xbb8 [ 64.782708][ T4904] block_ioctl+0xa4/0x118 [ 64.783397][ T4904] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.784090][ T4904] invoke_syscall+0x98/0x2b8 [ 64.784811][ T4904] el0_svc_common+0x138/0x258 [ 64.785552][ T4904] do_el0_svc+0x58/0x14c [ 64.786246][ T4904] el0_svc+0x78/0x1e0 [ 64.786946][ T4904] el0t_64_sync_handler+0xcc/0xe4 [ 64.787728][ T4904] el0t_64_sync+0x1a0/0x1a4 [ 64.788463][ T4904] debugfs: out of free dentries, can not create directory 'nbd0' [ 64.789584][ T4904] block nbd0: Failed to create debugfs dir for 'nbd0' [ 64.795810][ T4905] block nbd0: shutting down sockets [ 64.976157][ T4908] FAULT_INJECTION: forcing a failure. [ 64.976157][ T4908] name failslab, interval 1, probability 0, space 0, times 0 [ 64.978161][ T4908] CPU: 0 PID: 4908 Comm: syz-executor.0 Not tainted syzkaller #0 [ 64.979348][ T4908] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 64.980809][ T4908] Call trace: [ 64.981267][ T4908] dump_backtrace+0x0/0x43c [ 64.981884][ T4908] show_stack+0x2c/0x3c [ 64.982444][ T4908] __dump_stack+0x30/0x40 [ 64.983087][ T4908] dump_stack_lvl+0xf8/0x160 [ 64.983852][ T4908] dump_stack+0x1c/0x5c [ 64.984524][ T4908] should_fail+0x3c0/0x51c [ 64.985232][ T4908] __should_failslab+0xbc/0x10c [ 64.985991][ T4908] should_failslab+0x10/0x28 [ 64.986698][ T4908] slab_pre_alloc_hook+0x64/0xec [ 64.987404][ T4908] __kmalloc_node+0xb8/0x520 [ 64.988266][ T4908] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 64.989027][ T4908] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 64.989926][ T4908] nbd_start_device+0x14c/0xb40 [ 64.990716][ T4908] nbd_ioctl+0x514/0xc50 [ 64.991332][ T4908] blkdev_ioctl+0x5f8/0xbb8 [ 64.991982][ T4908] block_ioctl+0xa4/0x118 [ 64.992684][ T4908] __arm64_sys_ioctl+0x14c/0x1c8 [ 64.993371][ T4908] invoke_syscall+0x98/0x2b8 [ 64.994005][ T4908] el0_svc_common+0x138/0x258 [ 64.994723][ T4908] do_el0_svc+0x58/0x14c [ 64.995415][ T4908] el0_svc+0x78/0x1e0 [ 64.995999][ T4908] el0t_64_sync_handler+0xcc/0xe4 [ 64.996766][ T4908] el0t_64_sync+0x1a0/0x1a4 [ 64.997596][ T4908] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 65.000555][ T4907] block nbd0: shutting down sockets [ 65.146117][ T4910] FAULT_INJECTION: forcing a failure. [ 65.146117][ T4910] name failslab, interval 1, probability 0, space 0, times 0 [ 65.148141][ T4910] CPU: 0 PID: 4910 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.149273][ T4910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.150737][ T4910] Call trace: [ 65.151186][ T4910] dump_backtrace+0x0/0x43c [ 65.151819][ T4910] show_stack+0x2c/0x3c [ 65.152441][ T4910] __dump_stack+0x30/0x40 [ 65.153131][ T4910] dump_stack_lvl+0xf8/0x160 [ 65.153816][ T4910] dump_stack+0x1c/0x5c [ 65.154397][ T4910] should_fail+0x3c0/0x51c [ 65.155008][ T4910] __should_failslab+0xbc/0x10c [ 65.155725][ T4910] should_failslab+0x10/0x28 [ 65.156401][ T4910] slab_pre_alloc_hook+0x64/0xec [ 65.157167][ T4910] __kmalloc_node+0xb8/0x520 [ 65.157841][ T4910] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 65.158588][ T4910] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 65.159472][ T4910] nbd_start_device+0x14c/0xb40 [ 65.160194][ T4910] nbd_ioctl+0x514/0xc50 [ 65.160787][ T4910] blkdev_ioctl+0x5f8/0xbb8 [ 65.161470][ T4910] block_ioctl+0xa4/0x118 [ 65.162096][ T4910] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.162835][ T4910] invoke_syscall+0x98/0x2b8 [ 65.163540][ T4910] el0_svc_common+0x138/0x258 [ 65.164217][ T4910] do_el0_svc+0x58/0x14c [ 65.164867][ T4910] el0_svc+0x78/0x1e0 [ 65.165478][ T4910] el0t_64_sync_handler+0xcc/0xe4 [ 65.166245][ T4910] el0t_64_sync+0x1a0/0x1a4 [ 65.166969][ T4910] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 65.169883][ T4911] block nbd0: shutting down sockets [ 65.296107][ T4913] FAULT_INJECTION: forcing a failure. [ 65.296107][ T4913] name failslab, interval 1, probability 0, space 0, times 0 [ 65.298085][ T4913] CPU: 1 PID: 4913 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.299236][ T4913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.300854][ T4913] Call trace: [ 65.301342][ T4913] dump_backtrace+0x0/0x43c [ 65.302047][ T4913] show_stack+0x2c/0x3c [ 65.302623][ T4913] __dump_stack+0x30/0x40 [ 65.303209][ T4913] dump_stack_lvl+0xf8/0x160 [ 65.303845][ T4913] dump_stack+0x1c/0x5c [ 65.304418][ T4913] should_fail+0x3c0/0x51c [ 65.305128][ T4913] __should_failslab+0xbc/0x10c [ 65.305927][ T4913] should_failslab+0x10/0x28 [ 65.306625][ T4913] slab_pre_alloc_hook+0x64/0xec [ 65.307419][ T4913] __kmalloc_node+0xb8/0x520 [ 65.308163][ T4913] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 65.309070][ T4913] nbd_start_device+0x14c/0xb40 [ 65.309854][ T4913] nbd_ioctl+0x514/0xc50 [ 65.310537][ T4913] blkdev_ioctl+0x5f8/0xbb8 [ 65.311245][ T4913] block_ioctl+0xa4/0x118 [ 65.311928][ T4913] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.312781][ T4913] invoke_syscall+0x98/0x2b8 [ 65.313468][ T4913] el0_svc_common+0x138/0x258 [ 65.314170][ T4913] do_el0_svc+0x58/0x14c [ 65.314842][ T4913] el0_svc+0x78/0x1e0 [ 65.315477][ T4913] el0t_64_sync_handler+0xcc/0xe4 [ 65.316236][ T4913] el0t_64_sync+0x1a0/0x1a4 [ 65.319073][ T4914] block nbd0: shutting down sockets [ 65.426131][ T4916] FAULT_INJECTION: forcing a failure. [ 65.426131][ T4916] name failslab, interval 1, probability 0, space 0, times 0 [ 65.428200][ T4916] CPU: 1 PID: 4916 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.429322][ T4916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.430890][ T4916] Call trace: [ 65.431438][ T4916] dump_backtrace+0x0/0x43c [ 65.432136][ T4916] show_stack+0x2c/0x3c [ 65.432779][ T4916] __dump_stack+0x30/0x40 [ 65.433417][ T4916] dump_stack_lvl+0xf8/0x160 [ 65.434086][ T4916] dump_stack+0x1c/0x5c [ 65.434727][ T4916] should_fail+0x3c0/0x51c [ 65.435416][ T4916] __should_failslab+0xbc/0x10c [ 65.436219][ T4916] should_failslab+0x10/0x28 [ 65.436968][ T4916] slab_pre_alloc_hook+0x64/0xec [ 65.437805][ T4916] __kmalloc_node+0xb8/0x520 [ 65.438524][ T4916] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 65.439415][ T4916] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 65.440320][ T4916] nbd_start_device+0x14c/0xb40 [ 65.441081][ T4916] nbd_ioctl+0x514/0xc50 [ 65.441808][ T4916] blkdev_ioctl+0x5f8/0xbb8 [ 65.442524][ T4916] block_ioctl+0xa4/0x118 [ 65.443168][ T4916] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.443884][ T4916] invoke_syscall+0x98/0x2b8 [ 65.444611][ T4916] el0_svc_common+0x138/0x258 [ 65.445329][ T4916] do_el0_svc+0x58/0x14c [ 65.445985][ T4916] el0_svc+0x78/0x1e0 [ 65.446589][ T4916] el0t_64_sync_handler+0xcc/0xe4 [ 65.447368][ T4916] el0t_64_sync+0x1a0/0x1a4 [ 65.448567][ T4916] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 65.451162][ T4917] block nbd0: shutting down sockets [ 65.596214][ T4920] FAULT_INJECTION: forcing a failure. [ 65.596214][ T4920] name failslab, interval 1, probability 0, space 0, times 0 [ 65.598152][ T4920] CPU: 0 PID: 4920 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.599382][ T4920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.600784][ T4920] Call trace: [ 65.601243][ T4920] dump_backtrace+0x0/0x43c [ 65.601839][ T4920] show_stack+0x2c/0x3c [ 65.602430][ T4920] __dump_stack+0x30/0x40 [ 65.603045][ T4920] dump_stack_lvl+0xf8/0x160 [ 65.603702][ T4920] dump_stack+0x1c/0x5c [ 65.604310][ T4920] should_fail+0x3c0/0x51c [ 65.605016][ T4920] __should_failslab+0xbc/0x10c [ 65.605758][ T4920] should_failslab+0x10/0x28 [ 65.606424][ T4920] slab_pre_alloc_hook+0x64/0xec [ 65.607193][ T4920] __kmalloc_node+0xb8/0x520 [ 65.607829][ T4920] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 65.608665][ T4920] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 65.609548][ T4920] nbd_start_device+0x14c/0xb40 [ 65.610254][ T4920] nbd_ioctl+0x514/0xc50 [ 65.610856][ T4920] blkdev_ioctl+0x5f8/0xbb8 [ 65.611482][ T4920] block_ioctl+0xa4/0x118 [ 65.612085][ T4920] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.612755][ T4920] invoke_syscall+0x98/0x2b8 [ 65.613471][ T4920] el0_svc_common+0x138/0x258 [ 65.614157][ T4920] do_el0_svc+0x58/0x14c [ 65.614764][ T4920] el0_svc+0x78/0x1e0 [ 65.615355][ T4920] el0t_64_sync_handler+0xcc/0xe4 [ 65.616101][ T4920] el0t_64_sync+0x1a0/0x1a4 [ 65.616854][ T4920] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 65.619751][ T4919] block nbd0: shutting down sockets [ 65.756258][ T4922] FAULT_INJECTION: forcing a failure. [ 65.756258][ T4922] name failslab, interval 1, probability 0, space 0, times 0 [ 65.758258][ T4922] CPU: 1 PID: 4922 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.759459][ T4922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.760874][ T4922] Call trace: [ 65.761343][ T4922] dump_backtrace+0x0/0x43c [ 65.762060][ T4922] show_stack+0x2c/0x3c [ 65.762704][ T4922] __dump_stack+0x30/0x40 [ 65.763434][ T4922] dump_stack_lvl+0xf8/0x160 [ 65.764164][ T4922] dump_stack+0x1c/0x5c [ 65.764780][ T4922] should_fail+0x3c0/0x51c [ 65.765517][ T4922] __should_failslab+0xbc/0x10c [ 65.766273][ T4922] should_failslab+0x10/0x28 [ 65.766976][ T4922] slab_pre_alloc_hook+0x64/0xec [ 65.767826][ T4922] __kmalloc_node+0xb8/0x520 [ 65.768583][ T4922] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 65.769396][ T4922] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 65.770281][ T4922] nbd_start_device+0x14c/0xb40 [ 65.771154][ T4922] nbd_ioctl+0x514/0xc50 [ 65.771820][ T4922] blkdev_ioctl+0x5f8/0xbb8 [ 65.772539][ T4922] block_ioctl+0xa4/0x118 [ 65.773285][ T4922] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.774084][ T4922] invoke_syscall+0x98/0x2b8 [ 65.774809][ T4922] el0_svc_common+0x138/0x258 [ 65.775544][ T4922] do_el0_svc+0x58/0x14c [ 65.776196][ T4922] el0_svc+0x78/0x1e0 [ 65.776806][ T4922] el0t_64_sync_handler+0xcc/0xe4 [ 65.777568][ T4922] el0t_64_sync+0x1a0/0x1a4 [ 65.778734][ T4922] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 65.781322][ T4923] block nbd0: shutting down sockets [ 65.924718][ T4926] block nbd0: Device being setup by another task [ 65.925827][ T4925] FAULT_INJECTION: forcing a failure. [ 65.925827][ T4925] name failslab, interval 1, probability 0, space 0, times 0 [ 65.927936][ T4925] CPU: 1 PID: 4925 Comm: syz-executor.0 Not tainted syzkaller #0 [ 65.929186][ T4925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 65.930731][ T4925] Call trace: [ 65.931241][ T4925] dump_backtrace+0x0/0x43c [ 65.931932][ T4925] show_stack+0x2c/0x3c [ 65.932625][ T4925] __dump_stack+0x30/0x40 [ 65.933298][ T4925] dump_stack_lvl+0xf8/0x160 [ 65.934075][ T4925] dump_stack+0x1c/0x5c [ 65.934693][ T4925] should_fail+0x3c0/0x51c [ 65.935376][ T4925] __should_failslab+0xbc/0x10c [ 65.936047][ T4925] should_failslab+0x10/0x28 [ 65.936766][ T4925] slab_pre_alloc_hook+0x64/0xec [ 65.937574][ T4925] kmem_cache_alloc+0x94/0x3e4 [ 65.938322][ T4925] new_inode_pseudo+0x10c/0x1fc [ 65.939096][ T4925] new_inode+0x38/0x174 [ 65.939742][ T4925] debugfs_create_dir+0xec/0x3f4 [ 65.940550][ T4925] nbd_start_device+0x3c8/0xb40 [ 65.941390][ T4925] nbd_ioctl+0x514/0xc50 [ 65.942069][ T4925] blkdev_ioctl+0x5f8/0xbb8 [ 65.942776][ T4925] block_ioctl+0xa4/0x118 [ 65.943466][ T4925] __arm64_sys_ioctl+0x14c/0x1c8 [ 65.944286][ T4925] invoke_syscall+0x98/0x2b8 [ 65.944981][ T4925] el0_svc_common+0x138/0x258 [ 65.945731][ T4925] do_el0_svc+0x58/0x14c [ 65.946399][ T4925] el0_svc+0x78/0x1e0 [ 65.947043][ T4925] el0t_64_sync_handler+0xcc/0xe4 [ 65.947824][ T4925] el0t_64_sync+0x1a0/0x1a4 [ 65.948947][ T4925] debugfs: out of free dentries, can not create directory 'nbd0' [ 65.950138][ T4925] block nbd0: Failed to create debugfs dir for 'nbd0' [ 65.957761][ T4926] block nbd0: shutting down sockets [ 66.096134][ T4928] FAULT_INJECTION: forcing a failure. [ 66.096134][ T4928] name failslab, interval 1, probability 0, space 0, times 0 [ 66.097980][ T4928] CPU: 0 PID: 4928 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.099163][ T4928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.100641][ T4928] Call trace: [ 66.101144][ T4928] dump_backtrace+0x0/0x43c [ 66.101808][ T4928] show_stack+0x2c/0x3c [ 66.102502][ T4928] __dump_stack+0x30/0x40 [ 66.103236][ T4928] dump_stack_lvl+0xf8/0x160 [ 66.103956][ T4928] dump_stack+0x1c/0x5c [ 66.104625][ T4928] should_fail+0x3c0/0x51c [ 66.105331][ T4928] __should_failslab+0xbc/0x10c [ 66.106102][ T4928] should_failslab+0x10/0x28 [ 66.106808][ T4928] slab_pre_alloc_hook+0x64/0xec [ 66.107539][ T4928] __kmalloc_node+0xb8/0x520 [ 66.108241][ T4928] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 66.109108][ T4928] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 66.110009][ T4928] nbd_start_device+0x14c/0xb40 [ 66.110783][ T4928] nbd_ioctl+0x514/0xc50 [ 66.111493][ T4928] blkdev_ioctl+0x5f8/0xbb8 [ 66.112196][ T4928] block_ioctl+0xa4/0x118 [ 66.112887][ T4928] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.113642][ T4928] invoke_syscall+0x98/0x2b8 [ 66.114309][ T4928] el0_svc_common+0x138/0x258 [ 66.114993][ T4928] do_el0_svc+0x58/0x14c [ 66.115616][ T4928] el0_svc+0x78/0x1e0 [ 66.116209][ T4928] el0t_64_sync_handler+0xcc/0xe4 [ 66.116898][ T4928] el0t_64_sync+0x1a0/0x1a4 [ 66.118138][ T4928] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 66.120745][ T4929] block nbd0: shutting down sockets [ 66.246436][ T4931] FAULT_INJECTION: forcing a failure. [ 66.246436][ T4931] name failslab, interval 1, probability 0, space 0, times 0 [ 66.248399][ T4931] CPU: 1 PID: 4931 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.249655][ T4931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.251085][ T4931] Call trace: [ 66.251608][ T4931] dump_backtrace+0x0/0x43c [ 66.252293][ T4931] show_stack+0x2c/0x3c [ 66.252899][ T4931] __dump_stack+0x30/0x40 [ 66.253559][ T4931] dump_stack_lvl+0xf8/0x160 [ 66.254295][ T4931] dump_stack+0x1c/0x5c [ 66.254961][ T4931] should_fail+0x3c0/0x51c [ 66.255623][ T4931] __should_failslab+0xbc/0x10c [ 66.256369][ T4931] should_failslab+0x10/0x28 [ 66.257101][ T4931] slab_pre_alloc_hook+0x64/0xec [ 66.257829][ T4931] __kmalloc_node+0xb8/0x520 [ 66.258480][ T4931] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 66.259251][ T4931] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 66.260091][ T4931] nbd_start_device+0x14c/0xb40 [ 66.260926][ T4931] nbd_ioctl+0x514/0xc50 [ 66.261591][ T4931] blkdev_ioctl+0x5f8/0xbb8 [ 66.262300][ T4931] block_ioctl+0xa4/0x118 [ 66.263002][ T4931] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.263885][ T4931] invoke_syscall+0x98/0x2b8 [ 66.264646][ T4931] el0_svc_common+0x138/0x258 [ 66.265436][ T4931] do_el0_svc+0x58/0x14c [ 66.266079][ T4931] el0_svc+0x78/0x1e0 [ 66.266685][ T4931] el0t_64_sync_handler+0xcc/0xe4 [ 66.267420][ T4931] el0t_64_sync+0x1a0/0x1a4 [ 66.268640][ T4931] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 66.271718][ T4932] block nbd0: shutting down sockets [ 66.416474][ T4934] FAULT_INJECTION: forcing a failure. [ 66.416474][ T4934] name failslab, interval 1, probability 0, space 0, times 0 [ 66.418401][ T4934] CPU: 0 PID: 4934 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.419544][ T4934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.421097][ T4934] Call trace: [ 66.421602][ T4934] dump_backtrace+0x0/0x43c [ 66.422337][ T4934] show_stack+0x2c/0x3c [ 66.423027][ T4934] __dump_stack+0x30/0x40 [ 66.423721][ T4934] dump_stack_lvl+0xf8/0x160 [ 66.424449][ T4934] dump_stack+0x1c/0x5c [ 66.425089][ T4934] should_fail+0x3c0/0x51c [ 66.425827][ T4934] __should_failslab+0xbc/0x10c [ 66.426623][ T4934] should_failslab+0x10/0x28 [ 66.427340][ T4934] slab_pre_alloc_hook+0x64/0xec [ 66.428049][ T4934] __kmalloc_node+0xb8/0x520 [ 66.428705][ T4934] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 66.429560][ T4934] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 66.430339][ T4934] nbd_start_device+0x14c/0xb40 [ 66.431034][ T4934] nbd_ioctl+0x514/0xc50 [ 66.431635][ T4934] blkdev_ioctl+0x5f8/0xbb8 [ 66.432283][ T4934] block_ioctl+0xa4/0x118 [ 66.432922][ T4934] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.433688][ T4934] invoke_syscall+0x98/0x2b8 [ 66.434449][ T4934] el0_svc_common+0x138/0x258 [ 66.435166][ T4934] do_el0_svc+0x58/0x14c [ 66.435789][ T4934] el0_svc+0x78/0x1e0 [ 66.436405][ T4934] el0t_64_sync_handler+0xcc/0xe4 [ 66.437132][ T4934] el0t_64_sync+0x1a0/0x1a4 [ 66.438214][ T4934] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 66.440833][ T4935] block nbd0: shutting down sockets [ 66.586148][ T4938] FAULT_INJECTION: forcing a failure. [ 66.586148][ T4938] name failslab, interval 1, probability 0, space 0, times 0 [ 66.588266][ T4938] CPU: 1 PID: 4938 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.589380][ T4938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.590856][ T4938] Call trace: [ 66.591333][ T4938] dump_backtrace+0x0/0x43c [ 66.591939][ T4938] show_stack+0x2c/0x3c [ 66.592569][ T4938] __dump_stack+0x30/0x40 [ 66.593221][ T4938] dump_stack_lvl+0xf8/0x160 [ 66.593892][ T4938] dump_stack+0x1c/0x5c [ 66.594573][ T4938] should_fail+0x3c0/0x51c [ 66.595262][ T4938] __should_failslab+0xbc/0x10c [ 66.596009][ T4938] should_failslab+0x10/0x28 [ 66.596731][ T4938] slab_pre_alloc_hook+0x64/0xec [ 66.597483][ T4938] __kmalloc_node+0xb8/0x520 [ 66.598239][ T4938] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 66.599034][ T4938] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 66.599918][ T4938] nbd_start_device+0x14c/0xb40 [ 66.600752][ T4938] nbd_ioctl+0x514/0xc50 [ 66.601418][ T4938] blkdev_ioctl+0x5f8/0xbb8 [ 66.602076][ T4938] block_ioctl+0xa4/0x118 [ 66.602837][ T4938] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.603705][ T4938] invoke_syscall+0x98/0x2b8 [ 66.604404][ T4938] el0_svc_common+0x138/0x258 [ 66.605146][ T4938] do_el0_svc+0x58/0x14c [ 66.605825][ T4938] el0_svc+0x78/0x1e0 [ 66.606481][ T4938] el0t_64_sync_handler+0xcc/0xe4 [ 66.607255][ T4938] el0t_64_sync+0x1a0/0x1a4 [ 66.608363][ T4938] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 66.610913][ T4937] block nbd0: shutting down sockets [ 66.736241][ T4940] FAULT_INJECTION: forcing a failure. [ 66.736241][ T4940] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 66.738356][ T4940] CPU: 1 PID: 4940 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.739551][ T4940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.741260][ T4940] Call trace: [ 66.741819][ T4940] dump_backtrace+0x0/0x43c [ 66.742608][ T4940] show_stack+0x2c/0x3c [ 66.743268][ T4940] __dump_stack+0x30/0x40 [ 66.743983][ T4940] dump_stack_lvl+0xf8/0x160 [ 66.744730][ T4940] dump_stack+0x1c/0x5c [ 66.745381][ T4940] should_fail+0x3c0/0x51c [ 66.746108][ T4940] should_fail_alloc_page+0x74/0xa8 [ 66.746909][ T4940] prepare_alloc_pages+0x160/0x460 [ 66.747693][ T4940] __alloc_pages+0x108/0x470 [ 66.748359][ T4940] alloc_pages+0x34c/0x5c0 [ 66.748992][ T4940] new_slab+0xe0/0x55c [ 66.749611][ T4940] ___slab_alloc+0x6c0/0xda8 [ 66.750303][ T4940] __slab_alloc+0x68/0xc0 [ 66.750933][ T4940] __kmalloc_node+0x310/0x520 [ 66.751568][ T4940] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 66.752376][ T4940] nbd_start_device+0x14c/0xb40 [ 66.753123][ T4940] nbd_ioctl+0x514/0xc50 [ 66.753769][ T4940] blkdev_ioctl+0x5f8/0xbb8 [ 66.754469][ T4940] block_ioctl+0xa4/0x118 [ 66.755058][ T4940] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.755762][ T4940] invoke_syscall+0x98/0x2b8 [ 66.756468][ T4940] el0_svc_common+0x138/0x258 [ 66.757133][ T4940] do_el0_svc+0x58/0x14c [ 66.757841][ T4940] el0_svc+0x78/0x1e0 [ 66.758444][ T4940] el0t_64_sync_handler+0xcc/0xe4 [ 66.759304][ T4940] el0t_64_sync+0x1a0/0x1a4 [ 66.762966][ T4941] block nbd0: shutting down sockets [ 66.884726][ T4944] block nbd0: Device being setup by another task [ 66.936628][ T4943] FAULT_INJECTION: forcing a failure. [ 66.936628][ T4943] name failslab, interval 1, probability 0, space 0, times 0 [ 66.938519][ T4943] CPU: 0 PID: 4943 Comm: syz-executor.0 Not tainted syzkaller #0 [ 66.939593][ T4943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 66.940991][ T4943] Call trace: [ 66.941484][ T4943] dump_backtrace+0x0/0x43c [ 66.942124][ T4943] show_stack+0x2c/0x3c [ 66.942713][ T4943] __dump_stack+0x30/0x40 [ 66.943360][ T4943] dump_stack_lvl+0xf8/0x160 [ 66.944088][ T4943] dump_stack+0x1c/0x5c [ 66.944749][ T4943] should_fail+0x3c0/0x51c [ 66.945435][ T4943] __should_failslab+0xbc/0x10c [ 66.946186][ T4943] should_failslab+0x10/0x28 [ 66.946900][ T4943] slab_pre_alloc_hook+0x64/0xec [ 66.947646][ T4943] __kmalloc_track_caller+0x74/0x370 [ 66.948455][ T4943] kstrdup+0xe4/0x15c [ 66.949081][ T4943] kstrdup_const+0x54/0x6c [ 66.949789][ T4943] __kernfs_new_node+0xa8/0x5d8 [ 66.950523][ T4943] kernfs_new_node+0x11c/0x240 [ 66.951243][ T4943] kernfs_create_dir_ns+0x58/0x12c [ 66.951974][ T4943] sysfs_create_dir_ns+0x114/0x24c [ 66.952668][ T4943] kobject_add_internal+0x590/0xc54 [ 66.953490][ T4943] kobject_add+0x134/0x1f8 [ 66.954157][ T4943] blk_mq_register_hctx+0xc0/0x35c [ 66.954910][ T4943] blk_mq_sysfs_register+0xb8/0x18c [ 66.955642][ T4943] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 66.956480][ T4943] nbd_start_device+0x14c/0xb40 [ 66.957263][ T4943] nbd_ioctl+0x514/0xc50 [ 66.957893][ T4943] blkdev_ioctl+0x5f8/0xbb8 [ 66.958533][ T4943] block_ioctl+0xa4/0x118 [ 66.959119][ T4943] __arm64_sys_ioctl+0x14c/0x1c8 [ 66.959795][ T4943] invoke_syscall+0x98/0x2b8 [ 66.960474][ T4943] el0_svc_common+0x138/0x258 [ 66.961136][ T4943] do_el0_svc+0x58/0x14c [ 66.961766][ T4943] el0_svc+0x78/0x1e0 [ 66.962409][ T4943] el0t_64_sync_handler+0xcc/0xe4 [ 66.963221][ T4943] el0t_64_sync+0x1a0/0x1a4 [ 66.963993][ T4943] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 66.966619][ T4944] block nbd0: shutting down sockets [ 67.086193][ T4946] ------------[ cut here ]------------ [ 67.087144][ T4946] kernfs: can not remove 'nr_tags', no directory [ 67.088110][ T4946] WARNING: CPU: 1 PID: 4946 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 67.089574][ T4946] Modules linked in: [ 67.090243][ T4946] CPU: 1 PID: 4946 Comm: syz-executor.0 Not tainted syzkaller #0 [ 67.091459][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.093119][ T4946] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.094359][ T4946] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.095297][ T4946] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.096158][ T4946] sp : ffff80001ffa7790 [ 67.096746][ T4946] x29: ffff80001ffa7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 67.097809][ T4946] x26: 0000000000000002 x25: ffff800014919ea8 x24: 1ffff000022f8678 [ 67.098982][ T4946] x23: dfff800000000000 x22: ffff800014919ee0 x21: 0000000000000000 [ 67.100178][ T4946] x20: 0000000000000000 x19: ffff8000117c3420 x18: 0000000000000001 [ 67.101414][ T4946] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 67.102750][ T4946] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 67.104057][ T4946] x11: 0000000000000000 x10: 0000000000000000 x9 : 66b7fe1dee1d2b00 [ 67.105347][ T4946] x8 : 66b7fe1dee1d2b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.106658][ T4946] x5 : ffff80001ffa7078 x4 : ffff80001425f420 x3 : ffff80000850471c [ 67.107928][ T4946] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002e [ 67.109213][ T4946] Call trace: [ 67.109755][ T4946] kernfs_remove_by_name_ns+0xcc/0x158 [ 67.110611][ T4946] sysfs_remove_group+0xf8/0x288 [ 67.111442][ T4946] sysfs_remove_groups+0x5c/0xb4 [ 67.112207][ T4946] __kobject_del+0x90/0x2d4 [ 67.112968][ T4946] kobject_del+0x48/0x68 [ 67.113722][ T4946] blk_mq_sysfs_unregister+0x198/0x268 [ 67.114590][ T4946] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 67.115470][ T4946] nbd_start_device+0x14c/0xb40 [ 67.116273][ T4946] nbd_ioctl+0x514/0xc50 [ 67.116937][ T4946] blkdev_ioctl+0x5f8/0xbb8 [ 67.117660][ T4946] block_ioctl+0xa4/0x118 [ 67.118375][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.119223][ T4946] invoke_syscall+0x98/0x2b8 [ 67.119998][ T4946] el0_svc_common+0x138/0x258 [ 67.120758][ T4946] do_el0_svc+0x58/0x14c [ 67.121393][ T4946] el0_svc+0x78/0x1e0 [ 67.122091][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 67.122949][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 67.123706][ T4946] irq event stamp: 1508 [ 67.124357][ T4946] hardirqs last enabled at (1507): [] __up_console_sem+0xb4/0x100 [ 67.125973][ T4946] hardirqs last disabled at (1508): [] el1_dbg+0x24/0x80 [ 67.127315][ T4946] softirqs last enabled at (666): [] local_bh_enable+0x10/0x34 [ 67.128790][ T4946] softirqs last disabled at (664): [] local_bh_disable+0x10/0x34 [ 67.130325][ T4946] ---[ end trace 1cfab5832a96dd7c ]--- [ 67.131281][ T4946] ------------[ cut here ]------------ [ 67.132105][ T4946] kernfs: can not remove 'nr_reserved_tags', no directory [ 67.133260][ T4946] WARNING: CPU: 1 PID: 4946 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 67.134685][ T4946] Modules linked in: [ 67.135288][ T4946] CPU: 1 PID: 4946 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.136689][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.138238][ T4946] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.139497][ T4946] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.140428][ T4946] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.141387][ T4946] sp : ffff80001ffa7790 [ 67.142018][ T4946] x29: ffff80001ffa7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 67.143406][ T4946] x26: 0000000000000002 x25: ffff800014919eb0 x24: 1ffff000022f8678 [ 67.144712][ T4946] x23: dfff800000000000 x22: ffff800014919f40 x21: 0000000000000000 [ 67.145885][ T4946] x20: 0000000000000000 x19: ffff8000117c3460 x18: 0000000000000001 [ 67.147169][ T4946] x17: 0000000000000000 x16: ffff800008302168 x15: 00000000ffffffff [ 67.148455][ T4946] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 67.149844][ T4946] x11: 0000000000000000 x10: 0000000000000000 x9 : 66b7fe1dee1d2b00 [ 67.151124][ T4946] x8 : 66b7fe1dee1d2b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.152389][ T4946] x5 : ffff80001ffa7078 x4 : ffff80001425f420 x3 : ffff800008302278 [ 67.153740][ T4946] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000037 [ 67.154956][ T4946] Call trace: [ 67.155426][ T4946] kernfs_remove_by_name_ns+0xcc/0x158 [ 67.156222][ T4946] sysfs_remove_group+0xf8/0x288 [ 67.157004][ T4946] sysfs_remove_groups+0x5c/0xb4 [ 67.157839][ T4946] __kobject_del+0x90/0x2d4 [ 67.158541][ T4946] kobject_del+0x48/0x68 [ 67.159275][ T4946] blk_mq_sysfs_unregister+0x198/0x268 [ 67.160190][ T4946] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 67.161093][ T4946] nbd_start_device+0x14c/0xb40 [ 67.161832][ T4946] nbd_ioctl+0x514/0xc50 [ 67.162488][ T4946] blkdev_ioctl+0x5f8/0xbb8 [ 67.163193][ T4946] block_ioctl+0xa4/0x118 [ 67.163912][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.164657][ T4946] invoke_syscall+0x98/0x2b8 [ 67.165388][ T4946] el0_svc_common+0x138/0x258 [ 67.166114][ T4946] do_el0_svc+0x58/0x14c [ 67.166761][ T4946] el0_svc+0x78/0x1e0 [ 67.167374][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 67.168129][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 67.168887][ T4946] irq event stamp: 1548 [ 67.169580][ T4946] hardirqs last enabled at (1547): [] __up_console_sem+0xb4/0x100 [ 67.171037][ T4946] hardirqs last disabled at (1548): [] el1_dbg+0x24/0x80 [ 67.172440][ T4946] softirqs last enabled at (1526): [] handle_softirqs+0xa4c/0xbf0 [ 67.173975][ T4946] softirqs last disabled at (1511): [] __irq_exit_rcu+0x240/0x440 [ 67.175456][ T4946] ---[ end trace 1cfab5832a96dd7d ]--- [ 67.176694][ T4946] ------------[ cut here ]------------ [ 67.177499][ T4946] kernfs: can not remove 'cpu_list', no directory [ 67.178556][ T4946] WARNING: CPU: 1 PID: 4946 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 67.180175][ T4946] Modules linked in: [ 67.180696][ T4946] CPU: 1 PID: 4946 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.182095][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.183695][ T4946] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 67.184924][ T4946] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.185873][ T4946] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 67.186809][ T4946] sp : ffff80001ffa7790 [ 67.187493][ T4946] x29: ffff80001ffa7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 67.188741][ T4946] x26: 0000000000000002 x25: ffff800014919eb8 x24: 1ffff000022f8678 [ 67.190081][ T4946] x23: dfff800000000000 x22: ffff800014919fa0 x21: 0000000000000000 [ 67.191400][ T4946] x20: 0000000000000000 x19: ffff8000117c34a0 x18: 0000000000000001 [ 67.192647][ T4946] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 67.193879][ T4946] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 67.195180][ T4946] x11: 0000000000000000 x10: 0000000000000000 x9 : 66b7fe1dee1d2b00 [ 67.196471][ T4946] x8 : 66b7fe1dee1d2b00 x7 : 0000000000000001 x6 : 0000000000000001 [ 67.197821][ T4946] x5 : ffff80001ffa7078 x4 : ffff80001425f420 x3 : ffff80000a7281cc [ 67.199124][ T4946] x2 : ffff0001a10d4d50 x1 : 0000000100000000 x0 : 000000000000002f [ 67.200416][ T4946] Call trace: [ 67.200951][ T4946] kernfs_remove_by_name_ns+0xcc/0x158 [ 67.201899][ T4946] sysfs_remove_group+0xf8/0x288 [ 67.202742][ T4946] sysfs_remove_groups+0x5c/0xb4 [ 67.203500][ T4946] __kobject_del+0x90/0x2d4 [ 67.204186][ T4946] kobject_del+0x48/0x68 [ 67.204825][ T4946] blk_mq_sysfs_unregister+0x198/0x268 [ 67.205657][ T4946] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 67.206594][ T4946] nbd_start_device+0x14c/0xb40 [ 67.207386][ T4946] nbd_ioctl+0x514/0xc50 [ 67.208024][ T4946] blkdev_ioctl+0x5f8/0xbb8 [ 67.208710][ T4946] block_ioctl+0xa4/0x118 [ 67.209400][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.210194][ T4946] invoke_syscall+0x98/0x2b8 [ 67.210884][ T4946] el0_svc_common+0x138/0x258 [ 67.211564][ T4946] do_el0_svc+0x58/0x14c [ 67.212254][ T4946] el0_svc+0x78/0x1e0 [ 67.212861][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 67.213659][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 67.214360][ T4946] irq event stamp: 1594 [ 67.214986][ T4946] hardirqs last enabled at (1593): [] __up_console_sem+0xb4/0x100 [ 67.216379][ T4946] hardirqs last disabled at (1594): [] el1_dbg+0x24/0x80 [ 67.217686][ T4946] softirqs last enabled at (1572): [] handle_softirqs+0xa4c/0xbf0 [ 67.219090][ T4946] softirqs last disabled at (1551): [] __irq_exit_rcu+0x240/0x440 [ 67.220472][ T4946] ---[ end trace 1cfab5832a96dd7e ]--- [ 67.221952][ T4946] FAULT_INJECTION: forcing a failure. [ 67.221952][ T4946] name failslab, interval 1, probability 0, space 0, times 0 [ 67.223762][ T4946] CPU: 1 PID: 4946 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.224995][ T4946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.226660][ T4946] Call trace: [ 67.227217][ T4946] dump_backtrace+0x0/0x43c [ 67.227969][ T4946] show_stack+0x2c/0x3c [ 67.228621][ T4946] __dump_stack+0x30/0x40 [ 67.229233][ T4946] dump_stack_lvl+0xf8/0x160 [ 67.229907][ T4946] dump_stack+0x1c/0x5c [ 67.230595][ T4946] should_fail+0x3c0/0x51c [ 67.231339][ T4946] __should_failslab+0xbc/0x10c [ 67.232145][ T4946] should_failslab+0x10/0x28 [ 67.232921][ T4946] slab_pre_alloc_hook+0x64/0xec [ 67.233706][ T4946] __kmalloc_node+0xb8/0x520 [ 67.234524][ T4946] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 67.235428][ T4946] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 67.236314][ T4946] nbd_start_device+0x14c/0xb40 [ 67.237143][ T4946] nbd_ioctl+0x514/0xc50 [ 67.237804][ T4946] blkdev_ioctl+0x5f8/0xbb8 [ 67.238439][ T4946] block_ioctl+0xa4/0x118 [ 67.239103][ T4946] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.239897][ T4946] invoke_syscall+0x98/0x2b8 [ 67.240648][ T4946] el0_svc_common+0x138/0x258 [ 67.241390][ T4946] do_el0_svc+0x58/0x14c [ 67.242080][ T4946] el0_svc+0x78/0x1e0 [ 67.242749][ T4946] el0t_64_sync_handler+0xcc/0xe4 [ 67.243544][ T4946] el0t_64_sync+0x1a0/0x1a4 [ 67.244391][ T4946] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 67.247109][ T4947] block nbd0: shutting down sockets [ 67.386247][ T4950] FAULT_INJECTION: forcing a failure. [ 67.386247][ T4950] name failslab, interval 1, probability 0, space 0, times 0 [ 67.388205][ T4950] CPU: 1 PID: 4950 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.389730][ T4950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.391254][ T4950] Call trace: [ 67.391814][ T4950] dump_backtrace+0x0/0x43c [ 67.392543][ T4950] show_stack+0x2c/0x3c [ 67.393180][ T4950] __dump_stack+0x30/0x40 [ 67.393827][ T4950] dump_stack_lvl+0xf8/0x160 [ 67.394540][ T4950] dump_stack+0x1c/0x5c [ 67.395281][ T4950] should_fail+0x3c0/0x51c [ 67.395987][ T4950] __should_failslab+0xbc/0x10c [ 67.396805][ T4950] should_failslab+0x10/0x28 [ 67.397569][ T4950] slab_pre_alloc_hook+0x64/0xec [ 67.398306][ T4950] __kmalloc_node+0xb8/0x520 [ 67.398923][ T4950] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 67.399868][ T4950] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 67.400778][ T4950] nbd_start_device+0x14c/0xb40 [ 67.401522][ T4950] nbd_ioctl+0x514/0xc50 [ 67.402235][ T4950] blkdev_ioctl+0x5f8/0xbb8 [ 67.402905][ T4950] block_ioctl+0xa4/0x118 [ 67.403637][ T4950] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.404486][ T4950] invoke_syscall+0x98/0x2b8 [ 67.405244][ T4950] el0_svc_common+0x138/0x258 [ 67.405992][ T4950] do_el0_svc+0x58/0x14c [ 67.406690][ T4950] el0_svc+0x78/0x1e0 [ 67.407345][ T4950] el0t_64_sync_handler+0xcc/0xe4 [ 67.408204][ T4950] el0t_64_sync+0x1a0/0x1a4 [ 67.409717][ T4950] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 67.412315][ T4951] block nbd0: shutting down sockets [ 67.566118][ T4954] FAULT_INJECTION: forcing a failure. [ 67.566118][ T4954] name failslab, interval 1, probability 0, space 0, times 0 [ 67.568110][ T4954] CPU: 0 PID: 4954 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.569543][ T4954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.571126][ T4954] Call trace: [ 67.571614][ T4954] dump_backtrace+0x0/0x43c [ 67.572372][ T4954] show_stack+0x2c/0x3c [ 67.573095][ T4954] __dump_stack+0x30/0x40 [ 67.573775][ T4954] dump_stack_lvl+0xf8/0x160 [ 67.574500][ T4954] dump_stack+0x1c/0x5c [ 67.575125][ T4954] should_fail+0x3c0/0x51c [ 67.575803][ T4954] __should_failslab+0xbc/0x10c [ 67.576598][ T4954] should_failslab+0x10/0x28 [ 67.577357][ T4954] slab_pre_alloc_hook+0x64/0xec [ 67.578135][ T4954] __kmalloc_node+0xb8/0x520 [ 67.578850][ T4954] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 67.579743][ T4954] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 67.580728][ T4954] nbd_start_device+0x14c/0xb40 [ 67.581454][ T4954] nbd_ioctl+0x514/0xc50 [ 67.582182][ T4954] blkdev_ioctl+0x5f8/0xbb8 [ 67.582884][ T4954] block_ioctl+0xa4/0x118 [ 67.583564][ T4954] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.584417][ T4954] invoke_syscall+0x98/0x2b8 [ 67.585182][ T4954] el0_svc_common+0x138/0x258 [ 67.585878][ T4954] do_el0_svc+0x58/0x14c [ 67.586514][ T4954] el0_svc+0x78/0x1e0 [ 67.587175][ T4954] el0t_64_sync_handler+0xcc/0xe4 [ 67.588041][ T4954] el0t_64_sync+0x1a0/0x1a4 [ 67.589384][ T4954] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 67.592130][ T4953] block nbd0: shutting down sockets [ 67.704713][ T4957] block nbd0: Device being setup by another task [ 67.706057][ T4956] FAULT_INJECTION: forcing a failure. [ 67.706057][ T4956] name failslab, interval 1, probability 0, space 0, times 0 [ 67.707908][ T4956] CPU: 0 PID: 4956 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.709210][ T4956] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.710694][ T4956] Call trace: [ 67.711188][ T4956] dump_backtrace+0x0/0x43c [ 67.711908][ T4956] show_stack+0x2c/0x3c [ 67.712587][ T4956] __dump_stack+0x30/0x40 [ 67.713268][ T4956] dump_stack_lvl+0xf8/0x160 [ 67.713995][ T4956] dump_stack+0x1c/0x5c [ 67.714699][ T4956] should_fail+0x3c0/0x51c [ 67.715450][ T4956] __should_failslab+0xbc/0x10c [ 67.716273][ T4956] should_failslab+0x10/0x28 [ 67.717073][ T4956] slab_pre_alloc_hook+0x64/0xec [ 67.717920][ T4956] kmem_cache_alloc+0x94/0x3e4 [ 67.718698][ T4956] new_inode_pseudo+0x10c/0x1fc [ 67.719511][ T4956] new_inode+0x38/0x174 [ 67.720152][ T4956] debugfs_create_dir+0xec/0x3f4 [ 67.720992][ T4956] nbd_start_device+0x3c8/0xb40 [ 67.721724][ T4956] nbd_ioctl+0x514/0xc50 [ 67.722453][ T4956] blkdev_ioctl+0x5f8/0xbb8 [ 67.723142][ T4956] block_ioctl+0xa4/0x118 [ 67.723823][ T4956] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.724646][ T4956] invoke_syscall+0x98/0x2b8 [ 67.725360][ T4956] el0_svc_common+0x138/0x258 [ 67.726121][ T4956] do_el0_svc+0x58/0x14c [ 67.726800][ T4956] el0_svc+0x78/0x1e0 [ 67.727409][ T4956] el0t_64_sync_handler+0xcc/0xe4 [ 67.728177][ T4956] el0t_64_sync+0x1a0/0x1a4 [ 67.729049][ T4956] debugfs: out of free dentries, can not create directory 'nbd0' [ 67.730264][ T4956] block nbd0: Failed to create debugfs dir for 'nbd0' [ 67.756826][ T4957] block nbd0: shutting down sockets [ 67.884762][ T4960] block nbd0: Device being setup by another task [ 67.886003][ T4959] FAULT_INJECTION: forcing a failure. [ 67.886003][ T4959] name failslab, interval 1, probability 0, space 0, times 0 [ 67.887877][ T4959] CPU: 0 PID: 4959 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 67.889135][ T4959] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 67.890790][ T4959] Call trace: [ 67.891289][ T4959] dump_backtrace+0x0/0x43c [ 67.891983][ T4959] show_stack+0x2c/0x3c [ 67.892674][ T4959] __dump_stack+0x30/0x40 [ 67.893359][ T4959] dump_stack_lvl+0xf8/0x160 [ 67.894069][ T4959] dump_stack+0x1c/0x5c [ 67.894754][ T4959] should_fail+0x3c0/0x51c [ 67.895389][ T4959] __should_failslab+0xbc/0x10c [ 67.896104][ T4959] should_failslab+0x10/0x28 [ 67.896775][ T4959] slab_pre_alloc_hook+0x64/0xec [ 67.897549][ T4959] kmem_cache_alloc+0x94/0x3e4 [ 67.898294][ T4959] new_inode_pseudo+0x10c/0x1fc [ 67.898983][ T4959] new_inode+0x38/0x174 [ 67.899580][ T4959] debugfs_create_dir+0xec/0x3f4 [ 67.900307][ T4959] nbd_start_device+0x3c8/0xb40 [ 67.901014][ T4959] nbd_ioctl+0x514/0xc50 [ 67.901641][ T4959] blkdev_ioctl+0x5f8/0xbb8 [ 67.902379][ T4959] block_ioctl+0xa4/0x118 [ 67.903071][ T4959] __arm64_sys_ioctl+0x14c/0x1c8 [ 67.903856][ T4959] invoke_syscall+0x98/0x2b8 [ 67.904596][ T4959] el0_svc_common+0x138/0x258 [ 67.905278][ T4959] do_el0_svc+0x58/0x14c [ 67.905954][ T4959] el0_svc+0x78/0x1e0 [ 67.906552][ T4959] el0t_64_sync_handler+0xcc/0xe4 [ 67.907344][ T4959] el0t_64_sync+0x1a0/0x1a4 [ 67.908645][ T4959] debugfs: out of free dentries, can not create directory 'nbd0' [ 67.909731][ T4959] block nbd0: Failed to create debugfs dir for 'nbd0' [ 67.923825][ T4960] block nbd0: shutting down sockets [ 68.046123][ T4962] FAULT_INJECTION: forcing a failure. [ 68.046123][ T4962] name failslab, interval 1, probability 0, space 0, times 0 [ 68.048234][ T4962] CPU: 1 PID: 4962 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.049667][ T4962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.051417][ T4962] Call trace: [ 68.051945][ T4962] dump_backtrace+0x0/0x43c [ 68.052644][ T4962] show_stack+0x2c/0x3c [ 68.053302][ T4962] __dump_stack+0x30/0x40 [ 68.054001][ T4962] dump_stack_lvl+0xf8/0x160 [ 68.054699][ T4962] dump_stack+0x1c/0x5c [ 68.055367][ T4962] should_fail+0x3c0/0x51c [ 68.056055][ T4962] __should_failslab+0xbc/0x10c [ 68.056779][ T4962] should_failslab+0x10/0x28 [ 68.057421][ T4962] slab_pre_alloc_hook+0x64/0xec [ 68.058166][ T4962] __kmalloc_node+0xb8/0x520 [ 68.058858][ T4962] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 68.059618][ T4962] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 68.060501][ T4962] nbd_start_device+0x14c/0xb40 [ 68.061233][ T4962] nbd_ioctl+0x514/0xc50 [ 68.061855][ T4962] blkdev_ioctl+0x5f8/0xbb8 [ 68.062535][ T4962] block_ioctl+0xa4/0x118 [ 68.063265][ T4962] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.064056][ T4962] invoke_syscall+0x98/0x2b8 [ 68.064810][ T4962] el0_svc_common+0x138/0x258 [ 68.065518][ T4962] do_el0_svc+0x58/0x14c [ 68.066173][ T4962] el0_svc+0x78/0x1e0 [ 68.066786][ T4962] el0t_64_sync_handler+0xcc/0xe4 [ 68.067508][ T4962] el0t_64_sync+0x1a0/0x1a4 [ 68.069188][ T4962] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 68.071837][ T4963] block nbd0: shutting down sockets [ 68.185000][ T4966] block nbd0: Device being setup by another task [ 68.186366][ T4965] FAULT_INJECTION: forcing a failure. [ 68.186366][ T4965] name failslab, interval 1, probability 0, space 0, times 0 [ 68.188460][ T4965] CPU: 1 PID: 4965 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.189896][ T4965] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.191526][ T4965] Call trace: [ 68.192060][ T4965] dump_backtrace+0x0/0x43c [ 68.192757][ T4965] show_stack+0x2c/0x3c [ 68.193404][ T4965] __dump_stack+0x30/0x40 [ 68.194124][ T4965] dump_stack_lvl+0xf8/0x160 [ 68.194834][ T4965] dump_stack+0x1c/0x5c [ 68.195472][ T4965] should_fail+0x3c0/0x51c [ 68.196201][ T4965] __should_failslab+0xbc/0x10c [ 68.196984][ T4965] should_failslab+0x10/0x28 [ 68.197722][ T4965] slab_pre_alloc_hook+0x64/0xec [ 68.198485][ T4965] kmem_cache_alloc+0x94/0x3e4 [ 68.199281][ T4965] __d_alloc+0x3c/0x65c [ 68.199969][ T4965] d_alloc_parallel+0x80/0x1104 [ 68.200692][ T4965] __lookup_slow+0x104/0x380 [ 68.201404][ T4965] lookup_one_len+0x178/0x28c [ 68.202167][ T4965] start_creating+0x19c/0x2e0 [ 68.202912][ T4965] debugfs_create_dir+0x30/0x3f4 [ 68.203700][ T4965] nbd_start_device+0x3c8/0xb40 [ 68.204457][ T4965] nbd_ioctl+0x514/0xc50 [ 68.205117][ T4965] blkdev_ioctl+0x5f8/0xbb8 [ 68.205838][ T4965] block_ioctl+0xa4/0x118 [ 68.206462][ T4965] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.207171][ T4965] invoke_syscall+0x98/0x2b8 [ 68.207827][ T4965] el0_svc_common+0x138/0x258 [ 68.208567][ T4965] do_el0_svc+0x58/0x14c [ 68.209207][ T4965] el0_svc+0x78/0x1e0 [ 68.209829][ T4965] el0t_64_sync_handler+0xcc/0xe4 [ 68.210608][ T4965] el0t_64_sync+0x1a0/0x1a4 [ 68.211345][ T4965] block nbd0: Failed to create debugfs dir for 'nbd0' [ 68.236845][ T4966] block nbd0: shutting down sockets 1970/01/01 00:01:08 executed programs: 113 [ 68.386273][ T4968] FAULT_INJECTION: forcing a failure. [ 68.386273][ T4968] name failslab, interval 1, probability 0, space 0, times 0 [ 68.388338][ T4968] CPU: 0 PID: 4968 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.389690][ T4968] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.391133][ T4968] Call trace: [ 68.391637][ T4968] dump_backtrace+0x0/0x43c [ 68.392362][ T4968] show_stack+0x2c/0x3c [ 68.393008][ T4968] __dump_stack+0x30/0x40 [ 68.393677][ T4968] dump_stack_lvl+0xf8/0x160 [ 68.394398][ T4968] dump_stack+0x1c/0x5c [ 68.395050][ T4968] should_fail+0x3c0/0x51c [ 68.395749][ T4968] __should_failslab+0xbc/0x10c [ 68.396523][ T4968] should_failslab+0x10/0x28 [ 68.397231][ T4968] slab_pre_alloc_hook+0x64/0xec [ 68.397983][ T4968] __kmalloc_node+0xb8/0x520 [ 68.398707][ T4968] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 68.399577][ T4968] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 68.400518][ T4968] nbd_start_device+0x14c/0xb40 [ 68.401307][ T4968] nbd_ioctl+0x514/0xc50 [ 68.401982][ T4968] blkdev_ioctl+0x5f8/0xbb8 [ 68.402721][ T4968] block_ioctl+0xa4/0x118 [ 68.403396][ T4968] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.404164][ T4968] invoke_syscall+0x98/0x2b8 [ 68.404854][ T4968] el0_svc_common+0x138/0x258 [ 68.405506][ T4968] do_el0_svc+0x58/0x14c [ 68.406075][ T4968] el0_svc+0x78/0x1e0 [ 68.406605][ T4968] el0t_64_sync_handler+0xcc/0xe4 [ 68.407288][ T4968] el0t_64_sync+0x1a0/0x1a4 [ 68.408401][ T4968] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 68.411300][ T4969] block nbd0: shutting down sockets [ 68.566131][ T4971] FAULT_INJECTION: forcing a failure. [ 68.566131][ T4971] name failslab, interval 1, probability 0, space 0, times 0 [ 68.568028][ T4971] CPU: 0 PID: 4971 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.569336][ T4971] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.570838][ T4971] Call trace: [ 68.571297][ T4971] dump_backtrace+0x0/0x43c [ 68.571921][ T4971] show_stack+0x2c/0x3c [ 68.572489][ T4971] __dump_stack+0x30/0x40 [ 68.573098][ T4971] dump_stack_lvl+0xf8/0x160 [ 68.573755][ T4971] dump_stack+0x1c/0x5c [ 68.574399][ T4971] should_fail+0x3c0/0x51c [ 68.575116][ T4971] __should_failslab+0xbc/0x10c [ 68.575917][ T4971] should_failslab+0x10/0x28 [ 68.576574][ T4971] slab_pre_alloc_hook+0x64/0xec [ 68.577302][ T4971] __kmalloc_node+0xb8/0x520 [ 68.578000][ T4971] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 68.578804][ T4971] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 68.579774][ T4971] nbd_start_device+0x14c/0xb40 [ 68.580560][ T4971] nbd_ioctl+0x514/0xc50 [ 68.581238][ T4971] blkdev_ioctl+0x5f8/0xbb8 [ 68.581963][ T4971] block_ioctl+0xa4/0x118 [ 68.582630][ T4971] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.583424][ T4971] invoke_syscall+0x98/0x2b8 [ 68.584180][ T4971] el0_svc_common+0x138/0x258 [ 68.584914][ T4971] do_el0_svc+0x58/0x14c [ 68.585571][ T4971] el0_svc+0x78/0x1e0 [ 68.586174][ T4971] el0t_64_sync_handler+0xcc/0xe4 [ 68.586961][ T4971] el0t_64_sync+0x1a0/0x1a4 [ 68.588406][ T4971] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 68.590979][ T4972] block nbd0: shutting down sockets [ 68.744778][ T4975] FAULT_INJECTION: forcing a failure. [ 68.744778][ T4975] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 68.746780][ T4975] CPU: 1 PID: 4975 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.748004][ T4975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.749485][ T4975] Call trace: [ 68.749960][ T4975] dump_backtrace+0x0/0x43c [ 68.750658][ T4975] show_stack+0x2c/0x3c [ 68.751328][ T4975] __dump_stack+0x30/0x40 [ 68.752001][ T4975] dump_stack_lvl+0xf8/0x160 [ 68.752855][ T4975] dump_stack+0x1c/0x5c [ 68.753519][ T4975] should_fail+0x3c0/0x51c [ 68.754165][ T4975] should_fail_alloc_page+0x74/0xa8 [ 68.754999][ T4975] prepare_alloc_pages+0x160/0x460 [ 68.755856][ T4975] __alloc_pages+0x108/0x470 [ 68.756603][ T4975] alloc_pages+0x34c/0x5c0 [ 68.757262][ T4975] new_slab+0xe0/0x55c [ 68.757944][ T4975] ___slab_alloc+0x6c0/0xda8 [ 68.758649][ T4975] __slab_alloc+0x68/0xc0 [ 68.759288][ T4975] kmem_cache_alloc_trace+0x2c0/0x3fc [ 68.760180][ T4975] blk_mq_update_nr_hw_queues+0x2dc/0xbfc [ 68.761055][ T4975] nbd_start_device+0x14c/0xb40 [ 68.761883][ T4975] nbd_ioctl+0x514/0xc50 [ 68.762525][ T4975] blkdev_ioctl+0x5f8/0xbb8 [ 68.763224][ T4975] block_ioctl+0xa4/0x118 [ 68.763904][ T4975] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.764657][ T4975] invoke_syscall+0x98/0x2b8 [ 68.765414][ T4975] el0_svc_common+0x138/0x258 [ 68.766130][ T4975] do_el0_svc+0x58/0x14c [ 68.766847][ T4975] el0_svc+0x78/0x1e0 [ 68.767439][ T4975] el0t_64_sync_handler+0xcc/0xe4 [ 68.768158][ T4975] el0t_64_sync+0x1a0/0x1a4 [ 68.772588][ T4974] block nbd0: shutting down sockets [ 68.845060][ T4978] FAULT_INJECTION: forcing a failure. [ 68.845060][ T4978] name failslab, interval 1, probability 0, space 0, times 0 [ 68.846993][ T4978] CPU: 1 PID: 4978 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 68.848256][ T4978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 68.849675][ T4978] Call trace: [ 68.850141][ T4978] dump_backtrace+0x0/0x43c [ 68.850817][ T4978] show_stack+0x2c/0x3c [ 68.851406][ T4978] __dump_stack+0x30/0x40 [ 68.851968][ T4978] dump_stack_lvl+0xf8/0x160 [ 68.852645][ T4978] dump_stack+0x1c/0x5c [ 68.853293][ T4978] should_fail+0x3c0/0x51c [ 68.854036][ T4978] __should_failslab+0xbc/0x10c [ 68.854901][ T4978] should_failslab+0x10/0x28 [ 68.855647][ T4978] slab_pre_alloc_hook+0x64/0xec [ 68.856408][ T4978] kmem_cache_alloc+0x94/0x3e4 [ 68.857235][ T4978] new_inode_pseudo+0x10c/0x1fc [ 68.858061][ T4978] new_inode+0x38/0x174 [ 68.858724][ T4978] debugfs_create_dir+0xec/0x3f4 [ 68.859501][ T4978] nbd_start_device+0x3c8/0xb40 [ 68.860345][ T4978] nbd_ioctl+0x514/0xc50 [ 68.861053][ T4978] blkdev_ioctl+0x5f8/0xbb8 [ 68.861796][ T4978] block_ioctl+0xa4/0x118 [ 68.862515][ T4978] __arm64_sys_ioctl+0x14c/0x1c8 [ 68.863305][ T4978] invoke_syscall+0x98/0x2b8 [ 68.864021][ T4978] el0_svc_common+0x138/0x258 [ 68.864684][ T4978] do_el0_svc+0x58/0x14c [ 68.865325][ T4978] el0_svc+0x78/0x1e0 [ 68.865918][ T4978] el0t_64_sync_handler+0xcc/0xe4 [ 68.866645][ T4978] el0t_64_sync+0x1a0/0x1a4 [ 68.868026][ T4978] debugfs: out of free dentries, can not create directory 'nbd0' [ 68.869189][ T4978] block nbd0: Failed to create debugfs dir for 'nbd0' [ 68.896213][ T4979] block nbd0: shutting down sockets [ 69.014810][ T4982] FAULT_INJECTION: forcing a failure. [ 69.014810][ T4982] name failslab, interval 1, probability 0, space 0, times 0 [ 69.016708][ T4982] CPU: 0 PID: 4982 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.017933][ T4982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.019477][ T4982] Call trace: [ 69.019955][ T4982] dump_backtrace+0x0/0x43c [ 69.020665][ T4982] show_stack+0x2c/0x3c [ 69.021256][ T4982] __dump_stack+0x30/0x40 [ 69.021912][ T4982] dump_stack_lvl+0xf8/0x160 [ 69.022578][ T4982] dump_stack+0x1c/0x5c [ 69.023127][ T4982] should_fail+0x3c0/0x51c [ 69.023704][ T4982] __should_failslab+0xbc/0x10c [ 69.024406][ T4982] should_failslab+0x10/0x28 [ 69.025066][ T4982] slab_pre_alloc_hook+0x64/0xec [ 69.025763][ T4982] kmem_cache_alloc+0x94/0x3e4 [ 69.026509][ T4982] new_inode_pseudo+0x10c/0x1fc [ 69.027350][ T4982] new_inode+0x38/0x174 [ 69.028004][ T4982] debugfs_create_dir+0xec/0x3f4 [ 69.028802][ T4982] nbd_start_device+0x3c8/0xb40 [ 69.029559][ T4982] nbd_ioctl+0x514/0xc50 [ 69.030260][ T4982] blkdev_ioctl+0x5f8/0xbb8 [ 69.030999][ T4982] block_ioctl+0xa4/0x118 [ 69.031761][ T4982] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.032580][ T4982] invoke_syscall+0x98/0x2b8 [ 69.033342][ T4982] el0_svc_common+0x138/0x258 [ 69.034105][ T4982] do_el0_svc+0x58/0x14c [ 69.034770][ T4982] el0_svc+0x78/0x1e0 [ 69.035436][ T4982] el0t_64_sync_handler+0xcc/0xe4 [ 69.036223][ T4982] el0t_64_sync+0x1a0/0x1a4 [ 69.037699][ T4982] debugfs: out of free dentries, can not create directory 'nbd0' [ 69.038913][ T4982] block nbd0: Failed to create debugfs dir for 'nbd0' [ 69.056824][ T4981] block nbd0: shutting down sockets [ 69.135039][ T4984] FAULT_INJECTION: forcing a failure. [ 69.135039][ T4984] name failslab, interval 1, probability 0, space 0, times 0 [ 69.137069][ T4984] CPU: 1 PID: 4984 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.138492][ T4984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.140053][ T4984] Call trace: [ 69.140537][ T4984] dump_backtrace+0x0/0x43c [ 69.141177][ T4984] show_stack+0x2c/0x3c [ 69.141830][ T4984] __dump_stack+0x30/0x40 [ 69.142564][ T4984] dump_stack_lvl+0xf8/0x160 [ 69.143288][ T4984] dump_stack+0x1c/0x5c [ 69.143958][ T4984] should_fail+0x3c0/0x51c [ 69.144554][ T4984] __should_failslab+0xbc/0x10c [ 69.145286][ T4984] should_failslab+0x10/0x28 [ 69.145966][ T4984] slab_pre_alloc_hook+0x64/0xec [ 69.146761][ T4984] kmem_cache_alloc+0x94/0x3e4 [ 69.147471][ T4984] __d_alloc+0x3c/0x65c [ 69.148074][ T4984] d_alloc_parallel+0x80/0x1104 [ 69.148771][ T4984] __lookup_slow+0x104/0x380 [ 69.149439][ T4984] lookup_one_len+0x178/0x28c [ 69.150115][ T4984] start_creating+0x19c/0x2e0 [ 69.150802][ T4984] debugfs_create_dir+0x30/0x3f4 [ 69.151546][ T4984] nbd_start_device+0x3c8/0xb40 [ 69.152318][ T4984] nbd_ioctl+0x514/0xc50 [ 69.152968][ T4984] blkdev_ioctl+0x5f8/0xbb8 [ 69.153617][ T4984] block_ioctl+0xa4/0x118 [ 69.154309][ T4984] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.155103][ T4984] invoke_syscall+0x98/0x2b8 [ 69.155812][ T4984] el0_svc_common+0x138/0x258 [ 69.156574][ T4984] do_el0_svc+0x58/0x14c [ 69.157213][ T4984] el0_svc+0x78/0x1e0 [ 69.157815][ T4984] el0t_64_sync_handler+0xcc/0xe4 [ 69.158572][ T4984] el0t_64_sync+0x1a0/0x1a4 [ 69.159278][ T4984] block nbd0: Failed to create debugfs dir for 'nbd0' [ 69.186193][ T4985] block nbd0: shutting down sockets [ 69.295055][ T4987] FAULT_INJECTION: forcing a failure. [ 69.295055][ T4987] name failslab, interval 1, probability 0, space 0, times 0 [ 69.296955][ T4987] CPU: 0 PID: 4987 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.298164][ T4987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.299766][ T4987] Call trace: [ 69.300308][ T4987] dump_backtrace+0x0/0x43c [ 69.300970][ T4987] show_stack+0x2c/0x3c [ 69.301605][ T4987] __dump_stack+0x30/0x40 [ 69.302325][ T4987] dump_stack_lvl+0xf8/0x160 [ 69.303048][ T4987] dump_stack+0x1c/0x5c [ 69.303657][ T4987] should_fail+0x3c0/0x51c [ 69.304292][ T4987] __should_failslab+0xbc/0x10c [ 69.305037][ T4987] should_failslab+0x10/0x28 [ 69.305801][ T4987] slab_pre_alloc_hook+0x64/0xec [ 69.306588][ T4987] kmem_cache_alloc+0x94/0x3e4 [ 69.307372][ T4987] new_inode_pseudo+0x10c/0x1fc [ 69.308183][ T4987] new_inode+0x38/0x174 [ 69.308905][ T4987] debugfs_create_dir+0xec/0x3f4 [ 69.309731][ T4987] nbd_start_device+0x3c8/0xb40 [ 69.310433][ T4987] nbd_ioctl+0x514/0xc50 [ 69.311162][ T4987] blkdev_ioctl+0x5f8/0xbb8 [ 69.311960][ T4987] block_ioctl+0xa4/0x118 [ 69.312627][ T4987] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.313360][ T4987] invoke_syscall+0x98/0x2b8 [ 69.314085][ T4987] el0_svc_common+0x138/0x258 [ 69.314826][ T4987] do_el0_svc+0x58/0x14c [ 69.315487][ T4987] el0_svc+0x78/0x1e0 [ 69.316172][ T4987] el0t_64_sync_handler+0xcc/0xe4 [ 69.316970][ T4987] el0t_64_sync+0x1a0/0x1a4 [ 69.317814][ T4987] debugfs: out of free dentries, can not create directory 'nbd0' [ 69.319132][ T4987] block nbd0: Failed to create debugfs dir for 'nbd0' [ 69.346201][ T4988] block nbd0: shutting down sockets [ 69.445134][ T4990] FAULT_INJECTION: forcing a failure. [ 69.445134][ T4990] name failslab, interval 1, probability 0, space 0, times 0 [ 69.447165][ T4990] CPU: 1 PID: 4990 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.448395][ T4990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.450050][ T4990] Call trace: [ 69.450566][ T4990] dump_backtrace+0x0/0x43c [ 69.451293][ T4990] show_stack+0x2c/0x3c [ 69.451926][ T4990] __dump_stack+0x30/0x40 [ 69.452619][ T4990] dump_stack_lvl+0xf8/0x160 [ 69.453340][ T4990] dump_stack+0x1c/0x5c [ 69.454037][ T4990] should_fail+0x3c0/0x51c [ 69.454749][ T4990] __should_failslab+0xbc/0x10c [ 69.455566][ T4990] should_failslab+0x10/0x28 [ 69.456316][ T4990] slab_pre_alloc_hook+0x64/0xec [ 69.457133][ T4990] kmem_cache_alloc+0x94/0x3e4 [ 69.457916][ T4990] new_inode_pseudo+0x10c/0x1fc [ 69.458685][ T4990] new_inode+0x38/0x174 [ 69.459345][ T4990] debugfs_create_dir+0xec/0x3f4 [ 69.460079][ T4990] nbd_start_device+0x3c8/0xb40 [ 69.460793][ T4990] nbd_ioctl+0x514/0xc50 [ 69.461439][ T4990] blkdev_ioctl+0x5f8/0xbb8 [ 69.462092][ T4990] block_ioctl+0xa4/0x118 [ 69.462705][ T4990] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.463446][ T4990] invoke_syscall+0x98/0x2b8 [ 69.464162][ T4990] el0_svc_common+0x138/0x258 [ 69.464916][ T4990] do_el0_svc+0x58/0x14c [ 69.465635][ T4990] el0_svc+0x78/0x1e0 [ 69.466313][ T4990] el0t_64_sync_handler+0xcc/0xe4 [ 69.467127][ T4990] el0t_64_sync+0x1a0/0x1a4 [ 69.468159][ T4990] debugfs: out of free dentries, can not create directory 'nbd0' [ 69.469311][ T4990] block nbd0: Failed to create debugfs dir for 'nbd0' [ 69.496236][ T4991] block nbd0: shutting down sockets [ 69.604739][ T4994] block nbd0: Device being setup by another task [ 69.635924][ T2064] ieee802154 phy0 wpan0: encryption failed: -22 [ 69.636480][ T1541] cfg80211: failed to load regulatory.db [ 69.636970][ T2064] ieee802154 phy1 wpan1: encryption failed: -22 [ 69.647160][ T4993] FAULT_INJECTION: forcing a failure. [ 69.647160][ T4993] name failslab, interval 1, probability 0, space 0, times 0 [ 69.649092][ T4993] CPU: 0 PID: 4993 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.650324][ T4993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.651788][ T4993] Call trace: [ 69.652329][ T4993] dump_backtrace+0x0/0x43c [ 69.653001][ T4993] show_stack+0x2c/0x3c [ 69.653588][ T4993] __dump_stack+0x30/0x40 [ 69.654246][ T4993] dump_stack_lvl+0xf8/0x160 [ 69.654889][ T4993] dump_stack+0x1c/0x5c [ 69.655463][ T4993] should_fail+0x3c0/0x51c [ 69.656086][ T4993] __should_failslab+0xbc/0x10c [ 69.656787][ T4993] should_failslab+0x10/0x28 [ 69.657410][ T4993] slab_pre_alloc_hook+0x64/0xec [ 69.658177][ T4993] __kmalloc_track_caller+0x74/0x370 [ 69.659003][ T4993] kstrdup+0xe4/0x15c [ 69.659627][ T4993] kstrdup_const+0x54/0x6c [ 69.660331][ T4993] __kernfs_new_node+0xa8/0x5d8 [ 69.661091][ T4993] kernfs_new_node+0x11c/0x240 [ 69.661904][ T4993] kernfs_create_dir_ns+0x58/0x12c [ 69.662624][ T4993] sysfs_create_dir_ns+0x114/0x24c [ 69.663415][ T4993] kobject_add_internal+0x590/0xc54 [ 69.664164][ T4993] kobject_add+0x134/0x1f8 [ 69.664909][ T4993] blk_mq_register_hctx+0xc0/0x35c [ 69.665745][ T4993] blk_mq_sysfs_register+0xb8/0x18c [ 69.666634][ T4993] blk_mq_update_nr_hw_queues+0x78c/0xbfc [ 69.667571][ T4993] nbd_start_device+0x14c/0xb40 [ 69.668284][ T4993] nbd_ioctl+0x514/0xc50 [ 69.668903][ T4993] blkdev_ioctl+0x5f8/0xbb8 [ 69.669565][ T4993] block_ioctl+0xa4/0x118 [ 69.670213][ T4993] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.670967][ T4993] invoke_syscall+0x98/0x2b8 [ 69.671675][ T4993] el0_svc_common+0x138/0x258 [ 69.672416][ T4993] do_el0_svc+0x58/0x14c [ 69.673001][ T4993] el0_svc+0x78/0x1e0 [ 69.673581][ T4993] el0t_64_sync_handler+0xcc/0xe4 [ 69.674347][ T4993] el0t_64_sync+0x1a0/0x1a4 [ 69.677044][ T4993] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 69.680238][ T4994] block nbd0: shutting down sockets [ 69.876072][ T4996] ------------[ cut here ]------------ [ 69.877027][ T4996] kernfs: can not remove 'nr_tags', no directory [ 69.878048][ T4996] WARNING: CPU: 0 PID: 4996 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 69.879536][ T4996] Modules linked in: [ 69.880147][ T4996] CPU: 0 PID: 4996 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.881536][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.883017][ T4996] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.884239][ T4996] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.885189][ T4996] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.886066][ T4996] sp : ffff8000202a7790 [ 69.886667][ T4996] x29: ffff8000202a7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 69.888019][ T4996] x26: 0000000000000002 x25: ffff800014919ea8 x24: 1ffff000022f8678 [ 69.889277][ T4996] x23: dfff800000000000 x22: ffff800014919ee0 x21: 0000000000000000 [ 69.890531][ T4996] x20: 0000000000000000 x19: ffff8000117c3420 x18: 0000000000000001 [ 69.891750][ T4996] x17: 0000000000000000 x16: ffff8000111c8944 x15: 00000000ffffffff [ 69.893014][ T4996] x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 [ 69.894339][ T4996] x11: 0000000000000000 x10: 0000000000000000 x9 : 86d5d4ed89a13100 [ 69.895611][ T4996] x8 : 86d5d4ed89a13100 x7 : 0000000000000001 x6 : 0000000000000001 [ 69.896865][ T4996] x5 : ffff8000202a7078 x4 : ffff80001425f420 x3 : ffff80000850471c [ 69.898219][ T4996] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002e [ 69.899432][ T4996] Call trace: [ 69.899959][ T4996] kernfs_remove_by_name_ns+0xcc/0x158 [ 69.900922][ T4996] sysfs_remove_group+0xf8/0x288 [ 69.901707][ T4996] sysfs_remove_groups+0x5c/0xb4 [ 69.902389][ T4996] __kobject_del+0x90/0x2d4 [ 69.903133][ T4996] kobject_del+0x48/0x68 [ 69.903780][ T4996] blk_mq_sysfs_unregister+0x198/0x268 [ 69.904606][ T4996] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 69.905437][ T4996] nbd_start_device+0x14c/0xb40 [ 69.906136][ T4996] nbd_ioctl+0x514/0xc50 [ 69.906780][ T4996] blkdev_ioctl+0x5f8/0xbb8 [ 69.907472][ T4996] block_ioctl+0xa4/0x118 [ 69.908130][ T4996] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.908894][ T4996] invoke_syscall+0x98/0x2b8 [ 69.909616][ T4996] el0_svc_common+0x138/0x258 [ 69.910333][ T4996] do_el0_svc+0x58/0x14c [ 69.910959][ T4996] el0_svc+0x78/0x1e0 [ 69.911546][ T4996] el0t_64_sync_handler+0xcc/0xe4 [ 69.912298][ T4996] el0t_64_sync+0x1a0/0x1a4 [ 69.912969][ T4996] irq event stamp: 1210 [ 69.913586][ T4996] hardirqs last enabled at (1209): [] __up_console_sem+0xb4/0x100 [ 69.915052][ T4996] hardirqs last disabled at (1210): [] el1_dbg+0x24/0x80 [ 69.916438][ T4996] softirqs last enabled at (322): [] local_bh_enable+0x10/0x34 [ 69.917871][ T4996] softirqs last disabled at (320): [] local_bh_disable+0x10/0x34 [ 69.919260][ T4996] ---[ end trace 1cfab5832a96dd7f ]--- [ 69.922669][ T4996] ------------[ cut here ]------------ [ 69.923594][ T4996] kernfs: can not remove 'nr_reserved_tags', no directory [ 69.925617][ T4996] WARNING: CPU: 0 PID: 4996 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 69.926930][ T4996] Modules linked in: [ 69.927461][ T4996] CPU: 0 PID: 4996 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.928754][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.930191][ T4996] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.931343][ T4996] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.932184][ T4996] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.933114][ T4996] sp : ffff8000202a7790 [ 69.933743][ T4996] x29: ffff8000202a7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 69.934896][ T4996] x26: 0000000000000002 x25: ffff800014919eb0 x24: 1ffff000022f8678 [ 69.936091][ T4996] x23: dfff800000000000 x22: ffff800014919f40 x21: 0000000000000000 [ 69.937266][ T4996] x20: 0000000000000000 x19: ffff8000117c3460 x18: 0000000000000002 [ 69.938503][ T4996] x17: 0000000040000000 x16: ffff8000111c8944 x15: 0000000000000002 [ 69.939724][ T4996] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 69.940905][ T4996] x11: 0000000000000000 x10: 0000000000000000 x9 : 86d5d4ed89a13100 [ 69.942071][ T4996] x8 : 86d5d4ed89a13100 x7 : 0000000000000000 x6 : 0000000000000000 [ 69.943227][ T4996] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a7281cc [ 69.944343][ T4996] x2 : ffff0001a10b3d50 x1 : 0000000100000000 x0 : 0000000000000037 [ 69.945668][ T4996] Call trace: [ 69.946186][ T4996] kernfs_remove_by_name_ns+0xcc/0x158 [ 69.947037][ T4996] sysfs_remove_group+0xf8/0x288 [ 69.947822][ T4996] sysfs_remove_groups+0x5c/0xb4 [ 69.948631][ T4996] __kobject_del+0x90/0x2d4 [ 69.949345][ T4996] kobject_del+0x48/0x68 [ 69.949981][ T4996] blk_mq_sysfs_unregister+0x198/0x268 [ 69.950755][ T4996] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 69.951667][ T4996] nbd_start_device+0x14c/0xb40 [ 69.952475][ T4996] nbd_ioctl+0x514/0xc50 [ 69.953125][ T4996] blkdev_ioctl+0x5f8/0xbb8 [ 69.953813][ T4996] block_ioctl+0xa4/0x118 [ 69.954471][ T4996] __arm64_sys_ioctl+0x14c/0x1c8 [ 69.955225][ T4996] invoke_syscall+0x98/0x2b8 [ 69.955981][ T4996] el0_svc_common+0x138/0x258 [ 69.956654][ T4996] do_el0_svc+0x58/0x14c [ 69.957268][ T4996] el0_svc+0x78/0x1e0 [ 69.957841][ T4996] el0t_64_sync_handler+0xcc/0xe4 [ 69.958501][ T4996] el0t_64_sync+0x1a0/0x1a4 [ 69.959283][ T4996] irq event stamp: 1266 [ 69.959954][ T4996] hardirqs last enabled at (1265): [] finish_lock_switch+0xb0/0x1c4 [ 69.961560][ T4996] hardirqs last disabled at (1266): [] el1_dbg+0x24/0x80 [ 69.962981][ T4996] softirqs last enabled at (1236): [] handle_softirqs+0xa4c/0xbf0 [ 69.964457][ T4996] softirqs last disabled at (1213): [] __irq_exit_rcu+0x240/0x440 [ 69.965951][ T4996] ---[ end trace 1cfab5832a96dd80 ]--- [ 69.969462][ T4996] ------------[ cut here ]------------ [ 69.970248][ T4996] kernfs: can not remove 'cpu_list', no directory [ 69.971273][ T4996] WARNING: CPU: 0 PID: 4996 at fs/kernfs/dir.c:1557 kernfs_remove_by_name_ns+0xcc/0x158 [ 69.972652][ T4996] Modules linked in: [ 69.973193][ T4996] CPU: 0 PID: 4996 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 69.974465][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 69.975987][ T4996] pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 69.977291][ T4996] pc : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.978262][ T4996] lr : kernfs_remove_by_name_ns+0xcc/0x158 [ 69.979131][ T4996] sp : ffff8000202a7790 [ 69.979757][ T4996] x29: ffff8000202a7790 x28: ffff0000cc2cf000 x27: 0000000000000000 [ 69.981044][ T4996] x26: 0000000000000002 x25: ffff800014919eb8 x24: 1ffff000022f8678 [ 69.982308][ T4996] x23: dfff800000000000 x22: ffff800014919fa0 x21: 0000000000000000 [ 69.983587][ T4996] x20: 0000000000000000 x19: ffff8000117c34a0 x18: 0000000000000002 [ 69.984783][ T4996] x17: 0000000040000000 x16: ffff8000111c8944 x15: 0000000000000002 [ 69.986072][ T4996] x14: 0000000000ff0100 x13: 1ffff0000283006b x12: 0000000000ff0100 [ 69.987351][ T4996] x11: 0000000000000000 x10: 0000000000000000 x9 : 86d5d4ed89a13100 [ 69.988633][ T4996] x8 : 86d5d4ed89a13100 x7 : 0000000000000000 x6 : 0000000000000000 [ 69.989892][ T4996] x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000850471c [ 69.991166][ T4996] x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002f [ 69.992423][ T4996] Call trace: [ 69.992961][ T4996] kernfs_remove_by_name_ns+0xcc/0x158 [ 69.993831][ T4996] sysfs_remove_group+0xf8/0x288 [ 69.994620][ T4996] sysfs_remove_groups+0x5c/0xb4 [ 69.995442][ T4996] __kobject_del+0x90/0x2d4 [ 69.996167][ T4996] kobject_del+0x48/0x68 [ 69.996788][ T4996] blk_mq_sysfs_unregister+0x198/0x268 [ 69.997568][ T4996] blk_mq_update_nr_hw_queues+0x4d0/0xbfc [ 69.998467][ T4996] nbd_start_device+0x14c/0xb40 [ 69.999291][ T4996] nbd_ioctl+0x514/0xc50 [ 70.000020][ T4996] blkdev_ioctl+0x5f8/0xbb8 [ 70.000701][ T4996] block_ioctl+0xa4/0x118 [ 70.001319][ T4996] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.002059][ T4996] invoke_syscall+0x98/0x2b8 [ 70.002811][ T4996] el0_svc_common+0x138/0x258 [ 70.003560][ T4996] do_el0_svc+0x58/0x14c [ 70.004204][ T4996] el0_svc+0x78/0x1e0 [ 70.004771][ T4996] el0t_64_sync_handler+0xcc/0xe4 [ 70.005484][ T4996] el0t_64_sync+0x1a0/0x1a4 [ 70.006157][ T4996] irq event stamp: 1314 [ 70.006789][ T4996] hardirqs last enabled at (1313): [] finish_lock_switch+0xb0/0x1c4 [ 70.008318][ T4996] hardirqs last disabled at (1314): [] el1_dbg+0x24/0x80 [ 70.009643][ T4996] softirqs last enabled at (1288): [] handle_softirqs+0xa4c/0xbf0 [ 70.011074][ T4996] softirqs last disabled at (1269): [] __irq_exit_rcu+0x240/0x440 [ 70.012439][ T4996] ---[ end trace 1cfab5832a96dd81 ]--- [ 70.014202][ T4996] FAULT_INJECTION: forcing a failure. [ 70.014202][ T4996] name failslab, interval 1, probability 0, space 0, times 0 [ 70.016371][ T4996] CPU: 1 PID: 4996 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.017681][ T4996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.019371][ T4996] Call trace: [ 70.019902][ T4996] dump_backtrace+0x0/0x43c [ 70.020649][ T4996] show_stack+0x2c/0x3c [ 70.021374][ T4996] __dump_stack+0x30/0x40 [ 70.022125][ T4996] dump_stack_lvl+0xf8/0x160 [ 70.022932][ T4996] dump_stack+0x1c/0x5c [ 70.023615][ T4996] should_fail+0x3c0/0x51c [ 70.024320][ T4996] __should_failslab+0xbc/0x10c [ 70.025134][ T4996] should_failslab+0x10/0x28 [ 70.025903][ T4996] slab_pre_alloc_hook+0x64/0xec [ 70.026712][ T4996] __kmalloc_node+0xb8/0x520 [ 70.027464][ T4996] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.028329][ T4996] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.029215][ T4996] nbd_start_device+0x14c/0xb40 [ 70.029993][ T4996] nbd_ioctl+0x514/0xc50 [ 70.030668][ T4996] blkdev_ioctl+0x5f8/0xbb8 [ 70.031441][ T4996] block_ioctl+0xa4/0x118 [ 70.032168][ T4996] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.032893][ T4996] invoke_syscall+0x98/0x2b8 [ 70.033637][ T4996] el0_svc_common+0x138/0x258 [ 70.034428][ T4996] do_el0_svc+0x58/0x14c [ 70.035146][ T4996] el0_svc+0x78/0x1e0 [ 70.035769][ T4996] el0t_64_sync_handler+0xcc/0xe4 [ 70.036583][ T4996] el0t_64_sync+0x1a0/0x1a4 [ 70.038324][ T4996] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.040917][ T4997] block nbd0: shutting down sockets [ 70.154724][ T5001] block nbd0: Device being setup by another task [ 70.156154][ T5000] FAULT_INJECTION: forcing a failure. [ 70.156154][ T5000] name failslab, interval 1, probability 0, space 0, times 0 [ 70.158316][ T5000] CPU: 0 PID: 5000 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.159713][ T5000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.161161][ T5000] Call trace: [ 70.161609][ T5000] dump_backtrace+0x0/0x43c [ 70.162249][ T5000] show_stack+0x2c/0x3c [ 70.162845][ T5000] __dump_stack+0x30/0x40 [ 70.163442][ T5000] dump_stack_lvl+0xf8/0x160 [ 70.164034][ T5000] dump_stack+0x1c/0x5c [ 70.164636][ T5000] should_fail+0x3c0/0x51c [ 70.165283][ T5000] __should_failslab+0xbc/0x10c [ 70.165994][ T5000] should_failslab+0x10/0x28 [ 70.166670][ T5000] slab_pre_alloc_hook+0x64/0xec [ 70.167388][ T5000] kmem_cache_alloc+0x94/0x3e4 [ 70.168077][ T5000] new_inode_pseudo+0x10c/0x1fc [ 70.168741][ T5000] new_inode+0x38/0x174 [ 70.169335][ T5000] debugfs_create_dir+0xec/0x3f4 [ 70.170164][ T5000] nbd_start_device+0x3c8/0xb40 [ 70.170993][ T5000] nbd_ioctl+0x514/0xc50 [ 70.171721][ T5000] blkdev_ioctl+0x5f8/0xbb8 [ 70.172415][ T5000] block_ioctl+0xa4/0x118 [ 70.173074][ T5000] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.173808][ T5000] invoke_syscall+0x98/0x2b8 [ 70.174499][ T5000] el0_svc_common+0x138/0x258 [ 70.175252][ T5000] do_el0_svc+0x58/0x14c [ 70.175933][ T5000] el0_svc+0x78/0x1e0 [ 70.176594][ T5000] el0t_64_sync_handler+0xcc/0xe4 [ 70.177345][ T5000] el0t_64_sync+0x1a0/0x1a4 [ 70.178731][ T5000] debugfs: out of free dentries, can not create directory 'nbd0' [ 70.179903][ T5000] block nbd0: Failed to create debugfs dir for 'nbd0' [ 70.206806][ T5001] block nbd0: shutting down sockets [ 70.346112][ T5003] FAULT_INJECTION: forcing a failure. [ 70.346112][ T5003] name failslab, interval 1, probability 0, space 0, times 0 [ 70.348050][ T5003] CPU: 1 PID: 5003 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.349372][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.350818][ T5003] Call trace: [ 70.351272][ T5003] dump_backtrace+0x0/0x43c [ 70.351905][ T5003] show_stack+0x2c/0x3c [ 70.352524][ T5003] __dump_stack+0x30/0x40 [ 70.353140][ T5003] dump_stack_lvl+0xf8/0x160 [ 70.353837][ T5003] dump_stack+0x1c/0x5c [ 70.354507][ T5003] should_fail+0x3c0/0x51c [ 70.355181][ T5003] __should_failslab+0xbc/0x10c [ 70.355943][ T5003] should_failslab+0x10/0x28 [ 70.356699][ T5003] slab_pre_alloc_hook+0x64/0xec [ 70.357496][ T5003] __kmalloc_node+0xb8/0x520 [ 70.358287][ T5003] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 70.359213][ T5003] nbd_start_device+0x14c/0xb40 [ 70.359960][ T5003] nbd_ioctl+0x514/0xc50 [ 70.360599][ T5003] blkdev_ioctl+0x5f8/0xbb8 [ 70.361240][ T5003] block_ioctl+0xa4/0x118 [ 70.361932][ T5003] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.362719][ T5003] invoke_syscall+0x98/0x2b8 [ 70.363435][ T5003] el0_svc_common+0x138/0x258 [ 70.364186][ T5003] do_el0_svc+0x58/0x14c [ 70.364916][ T5003] el0_svc+0x78/0x1e0 [ 70.365567][ T5003] el0t_64_sync_handler+0xcc/0xe4 [ 70.366361][ T5003] el0t_64_sync+0x1a0/0x1a4 [ 70.369424][ T5004] block nbd0: shutting down sockets [ 70.516133][ T5006] FAULT_INJECTION: forcing a failure. [ 70.516133][ T5006] name failslab, interval 1, probability 0, space 0, times 0 [ 70.518200][ T5006] CPU: 1 PID: 5006 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.519590][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.521104][ T5006] Call trace: [ 70.521575][ T5006] dump_backtrace+0x0/0x43c [ 70.522216][ T5006] show_stack+0x2c/0x3c [ 70.522799][ T5006] __dump_stack+0x30/0x40 [ 70.523481][ T5006] dump_stack_lvl+0xf8/0x160 [ 70.524172][ T5006] dump_stack+0x1c/0x5c [ 70.524818][ T5006] should_fail+0x3c0/0x51c [ 70.525423][ T5006] __should_failslab+0xbc/0x10c [ 70.526132][ T5006] should_failslab+0x10/0x28 [ 70.526847][ T5006] slab_pre_alloc_hook+0x64/0xec [ 70.527623][ T5006] __kmalloc_node+0xb8/0x520 [ 70.528346][ T5006] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.529179][ T5006] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.530113][ T5006] nbd_start_device+0x14c/0xb40 [ 70.530905][ T5006] nbd_ioctl+0x514/0xc50 [ 70.531580][ T5006] blkdev_ioctl+0x5f8/0xbb8 [ 70.532264][ T5006] block_ioctl+0xa4/0x118 [ 70.532934][ T5006] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.533614][ T5006] invoke_syscall+0x98/0x2b8 [ 70.534311][ T5006] el0_svc_common+0x138/0x258 [ 70.535089][ T5006] do_el0_svc+0x58/0x14c [ 70.535775][ T5006] el0_svc+0x78/0x1e0 [ 70.536436][ T5006] el0t_64_sync_handler+0xcc/0xe4 [ 70.537189][ T5006] el0t_64_sync+0x1a0/0x1a4 [ 70.537939][ T5006] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.540541][ T5007] block nbd0: shutting down sockets [ 70.686191][ T5009] FAULT_INJECTION: forcing a failure. [ 70.686191][ T5009] name failslab, interval 1, probability 0, space 0, times 0 [ 70.688135][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.689417][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.690829][ T5009] Call trace: [ 70.691332][ T5009] dump_backtrace+0x0/0x43c [ 70.691986][ T5009] show_stack+0x2c/0x3c [ 70.692576][ T5009] __dump_stack+0x30/0x40 [ 70.693182][ T5009] dump_stack_lvl+0xf8/0x160 [ 70.693854][ T5009] dump_stack+0x1c/0x5c [ 70.694455][ T5009] should_fail+0x3c0/0x51c [ 70.695176][ T5009] __should_failslab+0xbc/0x10c [ 70.695901][ T5009] should_failslab+0x10/0x28 [ 70.696641][ T5009] slab_pre_alloc_hook+0x64/0xec [ 70.697373][ T5009] __kmalloc_node+0xb8/0x520 [ 70.698058][ T5009] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.698854][ T5009] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.699739][ T5009] nbd_start_device+0x14c/0xb40 [ 70.700451][ T5009] nbd_ioctl+0x514/0xc50 [ 70.701032][ T5009] blkdev_ioctl+0x5f8/0xbb8 [ 70.701742][ T5009] block_ioctl+0xa4/0x118 [ 70.702436][ T5009] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.703256][ T5009] invoke_syscall+0x98/0x2b8 [ 70.703958][ T5009] el0_svc_common+0x138/0x258 [ 70.704696][ T5009] do_el0_svc+0x58/0x14c [ 70.705393][ T5009] el0_svc+0x78/0x1e0 [ 70.706022][ T5009] el0t_64_sync_handler+0xcc/0xe4 [ 70.706733][ T5009] el0t_64_sync+0x1a0/0x1a4 [ 70.707909][ T5009] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.710696][ T5010] block nbd0: shutting down sockets [ 70.846161][ T5012] FAULT_INJECTION: forcing a failure. [ 70.846161][ T5012] name failslab, interval 1, probability 0, space 0, times 0 [ 70.848089][ T5012] CPU: 1 PID: 5012 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.849345][ T5012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 70.850700][ T5012] Call trace: [ 70.851166][ T5012] dump_backtrace+0x0/0x43c [ 70.851861][ T5012] show_stack+0x2c/0x3c [ 70.852451][ T5012] __dump_stack+0x30/0x40 [ 70.853094][ T5012] dump_stack_lvl+0xf8/0x160 [ 70.853845][ T5012] dump_stack+0x1c/0x5c [ 70.854487][ T5012] should_fail+0x3c0/0x51c [ 70.855230][ T5012] __should_failslab+0xbc/0x10c [ 70.856009][ T5012] should_failslab+0x10/0x28 [ 70.856733][ T5012] slab_pre_alloc_hook+0x64/0xec [ 70.857536][ T5012] __kmalloc_node+0xb8/0x520 [ 70.858245][ T5012] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 70.859160][ T5012] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 70.860085][ T5012] nbd_start_device+0x14c/0xb40 [ 70.860901][ T5012] nbd_ioctl+0x514/0xc50 [ 70.861635][ T5012] blkdev_ioctl+0x5f8/0xbb8 [ 70.862391][ T5012] block_ioctl+0xa4/0x118 [ 70.863070][ T5012] __arm64_sys_ioctl+0x14c/0x1c8 [ 70.863905][ T5012] invoke_syscall+0x98/0x2b8 [ 70.864679][ T5012] el0_svc_common+0x138/0x258 [ 70.865460][ T5012] do_el0_svc+0x58/0x14c [ 70.866139][ T5012] el0_svc+0x78/0x1e0 [ 70.866824][ T5012] el0t_64_sync_handler+0xcc/0xe4 [ 70.867681][ T5012] el0t_64_sync+0x1a0/0x1a4 [ 70.869127][ T5012] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 70.872381][ T5013] block nbd0: shutting down sockets [ 70.996156][ T5015] FAULT_INJECTION: forcing a failure. [ 70.996156][ T5015] name failslab, interval 1, probability 0, space 0, times 0 [ 70.998102][ T5015] CPU: 0 PID: 5015 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 70.999638][ T5015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.001047][ T5015] Call trace: [ 71.001483][ T5015] dump_backtrace+0x0/0x43c [ 71.002127][ T5015] show_stack+0x2c/0x3c [ 71.002755][ T5015] __dump_stack+0x30/0x40 [ 71.003383][ T5015] dump_stack_lvl+0xf8/0x160 [ 71.004106][ T5015] dump_stack+0x1c/0x5c [ 71.004773][ T5015] should_fail+0x3c0/0x51c [ 71.005507][ T5015] __should_failslab+0xbc/0x10c [ 71.006281][ T5015] should_failslab+0x10/0x28 [ 71.007015][ T5015] slab_pre_alloc_hook+0x64/0xec [ 71.007807][ T5015] __kmalloc_node+0xb8/0x520 [ 71.008525][ T5015] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.009341][ T5015] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.010239][ T5015] nbd_start_device+0x14c/0xb40 [ 71.010959][ T5015] nbd_ioctl+0x514/0xc50 [ 71.011648][ T5015] blkdev_ioctl+0x5f8/0xbb8 [ 71.012295][ T5015] block_ioctl+0xa4/0x118 [ 71.012954][ T5015] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.013765][ T5015] invoke_syscall+0x98/0x2b8 [ 71.014480][ T5015] el0_svc_common+0x138/0x258 [ 71.015166][ T5015] do_el0_svc+0x58/0x14c [ 71.015793][ T5015] el0_svc+0x78/0x1e0 [ 71.016454][ T5015] el0t_64_sync_handler+0xcc/0xe4 [ 71.017303][ T5015] el0t_64_sync+0x1a0/0x1a4 [ 71.018213][ T5015] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.020841][ T5016] block nbd0: shutting down sockets [ 71.156111][ T5018] FAULT_INJECTION: forcing a failure. [ 71.156111][ T5018] name failslab, interval 1, probability 0, space 0, times 0 [ 71.158025][ T5018] CPU: 1 PID: 5018 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.159335][ T5018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.160761][ T5018] Call trace: [ 71.161218][ T5018] dump_backtrace+0x0/0x43c [ 71.161857][ T5018] show_stack+0x2c/0x3c [ 71.162417][ T5018] __dump_stack+0x30/0x40 [ 71.163042][ T5018] dump_stack_lvl+0xf8/0x160 [ 71.163664][ T5018] dump_stack+0x1c/0x5c [ 71.164380][ T5018] should_fail+0x3c0/0x51c [ 71.165120][ T5018] __should_failslab+0xbc/0x10c [ 71.165903][ T5018] should_failslab+0x10/0x28 [ 71.166627][ T5018] slab_pre_alloc_hook+0x64/0xec [ 71.167516][ T5018] __kmalloc_node+0xb8/0x520 [ 71.168296][ T5018] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.169167][ T5018] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.170088][ T5018] nbd_start_device+0x14c/0xb40 [ 71.170905][ T5018] nbd_ioctl+0x514/0xc50 [ 71.171600][ T5018] blkdev_ioctl+0x5f8/0xbb8 [ 71.172338][ T5018] block_ioctl+0xa4/0x118 [ 71.173025][ T5018] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.173833][ T5018] invoke_syscall+0x98/0x2b8 [ 71.174461][ T5018] el0_svc_common+0x138/0x258 [ 71.175101][ T5018] do_el0_svc+0x58/0x14c [ 71.175707][ T5018] el0_svc+0x78/0x1e0 [ 71.176420][ T5018] el0t_64_sync_handler+0xcc/0xe4 [ 71.177271][ T5018] el0t_64_sync+0x1a0/0x1a4 [ 71.178493][ T5018] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.180972][ T5019] block nbd0: shutting down sockets [ 71.336120][ T5021] FAULT_INJECTION: forcing a failure. [ 71.336120][ T5021] name failslab, interval 1, probability 0, space 0, times 0 [ 71.338110][ T5021] CPU: 1 PID: 5021 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.339436][ T5021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.340850][ T5021] Call trace: [ 71.341294][ T5021] dump_backtrace+0x0/0x43c [ 71.341941][ T5021] show_stack+0x2c/0x3c [ 71.342598][ T5021] __dump_stack+0x30/0x40 [ 71.343275][ T5021] dump_stack_lvl+0xf8/0x160 [ 71.343966][ T5021] dump_stack+0x1c/0x5c [ 71.344584][ T5021] should_fail+0x3c0/0x51c [ 71.345383][ T5021] __should_failslab+0xbc/0x10c [ 71.346211][ T5021] should_failslab+0x10/0x28 [ 71.347024][ T5021] slab_pre_alloc_hook+0x64/0xec [ 71.347865][ T5021] __kmalloc_node+0xb8/0x520 [ 71.348557][ T5021] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.349422][ T5021] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.350331][ T5021] nbd_start_device+0x14c/0xb40 [ 71.351089][ T5021] nbd_ioctl+0x514/0xc50 [ 71.351717][ T5021] blkdev_ioctl+0x5f8/0xbb8 [ 71.352380][ T5021] block_ioctl+0xa4/0x118 [ 71.353025][ T5021] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.353781][ T5021] invoke_syscall+0x98/0x2b8 [ 71.354448][ T5021] el0_svc_common+0x138/0x258 [ 71.355108][ T5021] do_el0_svc+0x58/0x14c [ 71.355785][ T5021] el0_svc+0x78/0x1e0 [ 71.356417][ T5021] el0t_64_sync_handler+0xcc/0xe4 [ 71.357210][ T5021] el0t_64_sync+0x1a0/0x1a4 [ 71.358306][ T5021] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.360963][ T5023] block nbd0: shutting down sockets [ 71.506114][ T5026] FAULT_INJECTION: forcing a failure. [ 71.506114][ T5026] name failslab, interval 1, probability 0, space 0, times 0 [ 71.508081][ T5026] CPU: 0 PID: 5026 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.509517][ T5026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.511048][ T5026] Call trace: [ 71.511551][ T5026] dump_backtrace+0x0/0x43c [ 71.512294][ T5026] show_stack+0x2c/0x3c [ 71.512944][ T5026] __dump_stack+0x30/0x40 [ 71.513596][ T5026] dump_stack_lvl+0xf8/0x160 [ 71.514325][ T5026] dump_stack+0x1c/0x5c [ 71.514995][ T5026] should_fail+0x3c0/0x51c [ 71.515675][ T5026] __should_failslab+0xbc/0x10c [ 71.516455][ T5026] should_failslab+0x10/0x28 [ 71.517070][ T5026] slab_pre_alloc_hook+0x64/0xec [ 71.517757][ T5026] __kmalloc_node+0xb8/0x520 [ 71.518423][ T5026] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.519221][ T5026] nbd_start_device+0x14c/0xb40 [ 71.520003][ T5026] nbd_ioctl+0x514/0xc50 [ 71.520629][ T5026] blkdev_ioctl+0x5f8/0xbb8 [ 71.521358][ T5026] block_ioctl+0xa4/0x118 [ 71.521953][ T5026] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.522671][ T5026] invoke_syscall+0x98/0x2b8 [ 71.523373][ T5026] el0_svc_common+0x138/0x258 [ 71.524069][ T5026] do_el0_svc+0x58/0x14c [ 71.524725][ T5026] el0_svc+0x78/0x1e0 [ 71.525328][ T5026] el0t_64_sync_handler+0xcc/0xe4 [ 71.526128][ T5026] el0t_64_sync+0x1a0/0x1a4 [ 71.529332][ T5025] block nbd0: shutting down sockets [ 71.666124][ T5028] FAULT_INJECTION: forcing a failure. [ 71.666124][ T5028] name failslab, interval 1, probability 0, space 0, times 0 [ 71.668109][ T5028] CPU: 0 PID: 5028 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.669475][ T5028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.670893][ T5028] Call trace: [ 71.671373][ T5028] dump_backtrace+0x0/0x43c [ 71.672044][ T5028] show_stack+0x2c/0x3c [ 71.672723][ T5028] __dump_stack+0x30/0x40 [ 71.673363][ T5028] dump_stack_lvl+0xf8/0x160 [ 71.674068][ T5028] dump_stack+0x1c/0x5c [ 71.674689][ T5028] should_fail+0x3c0/0x51c [ 71.675376][ T5028] __should_failslab+0xbc/0x10c [ 71.676074][ T5028] should_failslab+0x10/0x28 [ 71.676787][ T5028] slab_pre_alloc_hook+0x64/0xec [ 71.677542][ T5028] __kmalloc_node+0xb8/0x520 [ 71.678207][ T5028] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.679018][ T5028] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.679808][ T5028] nbd_start_device+0x14c/0xb40 [ 71.680594][ T5028] nbd_ioctl+0x514/0xc50 [ 71.681262][ T5028] blkdev_ioctl+0x5f8/0xbb8 [ 71.681978][ T5028] block_ioctl+0xa4/0x118 [ 71.682691][ T5028] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.683454][ T5028] invoke_syscall+0x98/0x2b8 [ 71.684116][ T5028] el0_svc_common+0x138/0x258 [ 71.684851][ T5028] do_el0_svc+0x58/0x14c [ 71.685544][ T5028] el0_svc+0x78/0x1e0 [ 71.686185][ T5028] el0t_64_sync_handler+0xcc/0xe4 [ 71.686911][ T5028] el0t_64_sync+0x1a0/0x1a4 [ 71.688301][ T5028] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.691156][ T5029] block nbd0: shutting down sockets [ 71.836209][ T5032] FAULT_INJECTION: forcing a failure. [ 71.836209][ T5032] name failslab, interval 1, probability 0, space 0, times 0 [ 71.838381][ T5032] CPU: 0 PID: 5032 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.839842][ T5032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.841419][ T5032] Call trace: [ 71.841908][ T5032] dump_backtrace+0x0/0x43c [ 71.842563][ T5032] show_stack+0x2c/0x3c [ 71.843088][ T5032] __dump_stack+0x30/0x40 [ 71.843796][ T5032] dump_stack_lvl+0xf8/0x160 [ 71.844554][ T5032] dump_stack+0x1c/0x5c [ 71.845196][ T5032] should_fail+0x3c0/0x51c [ 71.845946][ T5032] __should_failslab+0xbc/0x10c [ 71.846736][ T5032] should_failslab+0x10/0x28 [ 71.847525][ T5032] slab_pre_alloc_hook+0x64/0xec [ 71.848330][ T5032] __kmalloc_node+0xb8/0x520 [ 71.849098][ T5032] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 71.850102][ T5032] nbd_start_device+0x14c/0xb40 [ 71.850891][ T5032] nbd_ioctl+0x514/0xc50 [ 71.851594][ T5032] blkdev_ioctl+0x5f8/0xbb8 [ 71.852266][ T5032] block_ioctl+0xa4/0x118 [ 71.852918][ T5032] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.853705][ T5032] invoke_syscall+0x98/0x2b8 [ 71.854356][ T5032] el0_svc_common+0x138/0x258 [ 71.855159][ T5032] do_el0_svc+0x58/0x14c [ 71.855892][ T5032] el0_svc+0x78/0x1e0 [ 71.856562][ T5032] el0t_64_sync_handler+0xcc/0xe4 [ 71.857303][ T5032] el0t_64_sync+0x1a0/0x1a4 [ 71.859685][ T5033] block nbd0: shutting down sockets [ 71.976154][ T5035] FAULT_INJECTION: forcing a failure. [ 71.976154][ T5035] name failslab, interval 1, probability 0, space 0, times 0 [ 71.978008][ T5035] CPU: 0 PID: 5035 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 71.979332][ T5035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 71.980813][ T5035] Call trace: [ 71.981233][ T5035] dump_backtrace+0x0/0x43c [ 71.981820][ T5035] show_stack+0x2c/0x3c [ 71.982454][ T5035] __dump_stack+0x30/0x40 [ 71.983068][ T5035] dump_stack_lvl+0xf8/0x160 [ 71.983737][ T5035] dump_stack+0x1c/0x5c [ 71.984364][ T5035] should_fail+0x3c0/0x51c [ 71.985035][ T5035] __should_failslab+0xbc/0x10c [ 71.985720][ T5035] should_failslab+0x10/0x28 [ 71.986364][ T5035] slab_pre_alloc_hook+0x64/0xec [ 71.987051][ T5035] __kmalloc_node+0xb8/0x520 [ 71.987645][ T5035] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 71.988412][ T5035] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 71.989238][ T5035] nbd_start_device+0x14c/0xb40 [ 71.989932][ T5035] nbd_ioctl+0x514/0xc50 [ 71.990674][ T5035] blkdev_ioctl+0x5f8/0xbb8 [ 71.991314][ T5035] block_ioctl+0xa4/0x118 [ 71.991936][ T5035] __arm64_sys_ioctl+0x14c/0x1c8 [ 71.992676][ T5035] invoke_syscall+0x98/0x2b8 [ 71.993345][ T5035] el0_svc_common+0x138/0x258 [ 71.994118][ T5035] do_el0_svc+0x58/0x14c [ 71.994754][ T5035] el0_svc+0x78/0x1e0 [ 71.995424][ T5035] el0t_64_sync_handler+0xcc/0xe4 [ 71.996201][ T5035] el0t_64_sync+0x1a0/0x1a4 [ 71.996907][ T5035] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 71.999536][ T5036] block nbd0: shutting down sockets [ 72.136167][ T5038] FAULT_INJECTION: forcing a failure. [ 72.136167][ T5038] name failslab, interval 1, probability 0, space 0, times 0 [ 72.138198][ T5038] CPU: 1 PID: 5038 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.139646][ T5038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.141041][ T5038] Call trace: [ 72.141582][ T5038] dump_backtrace+0x0/0x43c [ 72.142326][ T5038] show_stack+0x2c/0x3c [ 72.142966][ T5038] __dump_stack+0x30/0x40 [ 72.143711][ T5038] dump_stack_lvl+0xf8/0x160 [ 72.144429][ T5038] dump_stack+0x1c/0x5c [ 72.145051][ T5038] should_fail+0x3c0/0x51c [ 72.145699][ T5038] __should_failslab+0xbc/0x10c [ 72.146414][ T5038] should_failslab+0x10/0x28 [ 72.147048][ T5038] slab_pre_alloc_hook+0x64/0xec [ 72.147851][ T5038] __kmalloc_node+0xb8/0x520 [ 72.148514][ T5038] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.149309][ T5038] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.150213][ T5038] nbd_start_device+0x14c/0xb40 [ 72.150944][ T5038] nbd_ioctl+0x514/0xc50 [ 72.151599][ T5038] blkdev_ioctl+0x5f8/0xbb8 [ 72.152322][ T5038] block_ioctl+0xa4/0x118 [ 72.153015][ T5038] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.153850][ T5038] invoke_syscall+0x98/0x2b8 [ 72.154636][ T5038] el0_svc_common+0x138/0x258 [ 72.155383][ T5038] do_el0_svc+0x58/0x14c [ 72.156062][ T5038] el0_svc+0x78/0x1e0 [ 72.156713][ T5038] el0t_64_sync_handler+0xcc/0xe4 [ 72.157540][ T5038] el0t_64_sync+0x1a0/0x1a4 [ 72.159064][ T5038] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.161829][ T5039] block nbd0: shutting down sockets [ 72.304696][ T5041] FAULT_INJECTION: forcing a failure. [ 72.304696][ T5041] name failslab, interval 1, probability 0, space 0, times 0 [ 72.306588][ T5041] CPU: 1 PID: 5041 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.307979][ T5041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.309341][ T5041] Call trace: [ 72.309795][ T5041] dump_backtrace+0x0/0x43c [ 72.310509][ T5041] show_stack+0x2c/0x3c [ 72.311134][ T5041] __dump_stack+0x30/0x40 [ 72.311757][ T5041] dump_stack_lvl+0xf8/0x160 [ 72.312402][ T5041] dump_stack+0x1c/0x5c [ 72.313050][ T5041] should_fail+0x3c0/0x51c [ 72.313745][ T5041] __should_failslab+0xbc/0x10c [ 72.314433][ T5041] should_failslab+0x10/0x28 [ 72.315146][ T5041] slab_pre_alloc_hook+0x64/0xec [ 72.315921][ T5041] kmem_cache_alloc_trace+0x98/0x3fc [ 72.316648][ T5041] blk_mq_update_nr_hw_queues+0x2dc/0xbfc [ 72.317467][ T5041] nbd_start_device+0x14c/0xb40 [ 72.318233][ T5041] nbd_ioctl+0x514/0xc50 [ 72.318875][ T5041] blkdev_ioctl+0x5f8/0xbb8 [ 72.319552][ T5041] block_ioctl+0xa4/0x118 [ 72.320160][ T5041] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.320926][ T5041] invoke_syscall+0x98/0x2b8 [ 72.321560][ T5041] el0_svc_common+0x138/0x258 [ 72.322306][ T5041] do_el0_svc+0x58/0x14c [ 72.323007][ T5041] el0_svc+0x78/0x1e0 [ 72.323636][ T5041] el0t_64_sync_handler+0xcc/0xe4 [ 72.324472][ T5041] el0t_64_sync+0x1a0/0x1a4 [ 72.326187][ T5042] block nbd0: shutting down sockets [ 72.434722][ T5045] block nbd0: Device being setup by another task [ 72.436157][ T5044] FAULT_INJECTION: forcing a failure. [ 72.436157][ T5044] name failslab, interval 1, probability 0, space 0, times 0 [ 72.438188][ T5044] CPU: 0 PID: 5044 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.439554][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.441136][ T5044] Call trace: [ 72.441637][ T5044] dump_backtrace+0x0/0x43c [ 72.442314][ T5044] show_stack+0x2c/0x3c [ 72.442929][ T5044] __dump_stack+0x30/0x40 [ 72.443630][ T5044] dump_stack_lvl+0xf8/0x160 [ 72.444525][ T5044] dump_stack+0x1c/0x5c [ 72.445130][ T5044] should_fail+0x3c0/0x51c [ 72.445774][ T5044] __should_failslab+0xbc/0x10c [ 72.446468][ T5044] should_failslab+0x10/0x28 [ 72.447102][ T5044] slab_pre_alloc_hook+0x64/0xec [ 72.447794][ T5044] kmem_cache_alloc+0x94/0x3e4 [ 72.448452][ T5044] __d_alloc+0x3c/0x65c [ 72.448997][ T5044] d_alloc_parallel+0x80/0x1104 [ 72.449743][ T5044] __lookup_slow+0x104/0x380 [ 72.450428][ T5044] lookup_one_len+0x178/0x28c [ 72.451072][ T5044] start_creating+0x19c/0x2e0 [ 72.451776][ T5044] debugfs_create_dir+0x30/0x3f4 [ 72.452589][ T5044] nbd_start_device+0x3c8/0xb40 [ 72.453356][ T5044] nbd_ioctl+0x514/0xc50 [ 72.454018][ T5044] blkdev_ioctl+0x5f8/0xbb8 [ 72.454716][ T5044] block_ioctl+0xa4/0x118 [ 72.455368][ T5044] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.456062][ T5044] invoke_syscall+0x98/0x2b8 [ 72.456749][ T5044] el0_svc_common+0x138/0x258 [ 72.457426][ T5044] do_el0_svc+0x58/0x14c [ 72.458102][ T5044] el0_svc+0x78/0x1e0 [ 72.458745][ T5044] el0t_64_sync_handler+0xcc/0xe4 [ 72.459591][ T5044] el0t_64_sync+0x1a0/0x1a4 [ 72.460825][ T5044] block nbd0: Failed to create debugfs dir for 'nbd0' [ 72.486787][ T5045] block nbd0: shutting down sockets [ 72.636137][ T5049] FAULT_INJECTION: forcing a failure. [ 72.636137][ T5049] name failslab, interval 1, probability 0, space 0, times 0 [ 72.638218][ T5049] CPU: 0 PID: 5049 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.639607][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.641105][ T5049] Call trace: [ 72.641603][ T5049] dump_backtrace+0x0/0x43c [ 72.642306][ T5049] show_stack+0x2c/0x3c [ 72.642922][ T5049] __dump_stack+0x30/0x40 [ 72.643524][ T5049] dump_stack_lvl+0xf8/0x160 [ 72.644183][ T5049] dump_stack+0x1c/0x5c [ 72.644836][ T5049] should_fail+0x3c0/0x51c [ 72.645558][ T5049] __should_failslab+0xbc/0x10c [ 72.646371][ T5049] should_failslab+0x10/0x28 [ 72.647058][ T5049] slab_pre_alloc_hook+0x64/0xec [ 72.647863][ T5049] __kmalloc_node+0xb8/0x520 [ 72.648622][ T5049] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.649482][ T5049] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.650335][ T5049] nbd_start_device+0x14c/0xb40 [ 72.651096][ T5049] nbd_ioctl+0x514/0xc50 [ 72.651736][ T5049] blkdev_ioctl+0x5f8/0xbb8 [ 72.652418][ T5049] block_ioctl+0xa4/0x118 [ 72.653086][ T5049] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.653785][ T5049] invoke_syscall+0x98/0x2b8 [ 72.654434][ T5049] el0_svc_common+0x138/0x258 [ 72.655160][ T5049] do_el0_svc+0x58/0x14c [ 72.655858][ T5049] el0_svc+0x78/0x1e0 [ 72.656476][ T5049] el0t_64_sync_handler+0xcc/0xe4 [ 72.657271][ T5049] el0t_64_sync+0x1a0/0x1a4 [ 72.658030][ T5049] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 72.660488][ T5048] block nbd0: shutting down sockets [ 72.794717][ T5052] block nbd0: Device being setup by another task [ 72.796023][ T5051] FAULT_INJECTION: forcing a failure. [ 72.796023][ T5051] name failslab, interval 1, probability 0, space 0, times 0 [ 72.797982][ T5051] CPU: 0 PID: 5051 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.799370][ T5051] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.800909][ T5051] Call trace: [ 72.801406][ T5051] dump_backtrace+0x0/0x43c [ 72.802064][ T5051] show_stack+0x2c/0x3c [ 72.802672][ T5051] __dump_stack+0x30/0x40 [ 72.803401][ T5051] dump_stack_lvl+0xf8/0x160 [ 72.804196][ T5051] dump_stack+0x1c/0x5c [ 72.804855][ T5051] should_fail+0x3c0/0x51c [ 72.805499][ T5051] __should_failslab+0xbc/0x10c [ 72.806262][ T5051] should_failslab+0x10/0x28 [ 72.806946][ T5051] slab_pre_alloc_hook+0x64/0xec [ 72.807647][ T5051] kmem_cache_alloc+0x94/0x3e4 [ 72.808319][ T5051] __d_alloc+0x3c/0x65c [ 72.808899][ T5051] d_alloc_parallel+0x80/0x1104 [ 72.809571][ T5051] __lookup_slow+0x104/0x380 [ 72.810298][ T5051] lookup_one_len+0x178/0x28c [ 72.810964][ T5051] start_creating+0x19c/0x2e0 [ 72.811667][ T5051] debugfs_create_dir+0x30/0x3f4 [ 72.812430][ T5051] nbd_start_device+0x3c8/0xb40 [ 72.813096][ T5051] nbd_ioctl+0x514/0xc50 [ 72.813732][ T5051] blkdev_ioctl+0x5f8/0xbb8 [ 72.814386][ T5051] block_ioctl+0xa4/0x118 [ 72.814997][ T5051] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.815715][ T5051] invoke_syscall+0x98/0x2b8 [ 72.816580][ T5051] el0_svc_common+0x138/0x258 [ 72.817288][ T5051] do_el0_svc+0x58/0x14c [ 72.817902][ T5051] el0_svc+0x78/0x1e0 [ 72.818455][ T5051] el0t_64_sync_handler+0xcc/0xe4 [ 72.819174][ T5051] el0t_64_sync+0x1a0/0x1a4 [ 72.819884][ T5051] block nbd0: Failed to create debugfs dir for 'nbd0' [ 72.827846][ T5052] block nbd0: shutting down sockets [ 72.976224][ T5054] FAULT_INJECTION: forcing a failure. [ 72.976224][ T5054] name failslab, interval 1, probability 0, space 0, times 0 [ 72.978291][ T5054] CPU: 1 PID: 5054 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 72.979680][ T5054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 72.981300][ T5054] Call trace: [ 72.981870][ T5054] dump_backtrace+0x0/0x43c [ 72.982546][ T5054] show_stack+0x2c/0x3c [ 72.983188][ T5054] __dump_stack+0x30/0x40 [ 72.983772][ T5054] dump_stack_lvl+0xf8/0x160 [ 72.984489][ T5054] dump_stack+0x1c/0x5c [ 72.985105][ T5054] should_fail+0x3c0/0x51c [ 72.985788][ T5054] __should_failslab+0xbc/0x10c [ 72.986594][ T5054] should_failslab+0x10/0x28 [ 72.987338][ T5054] slab_pre_alloc_hook+0x64/0xec [ 72.988078][ T5054] __kmalloc_node+0xb8/0x520 [ 72.988797][ T5054] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 72.989552][ T5054] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 72.990319][ T5054] nbd_start_device+0x14c/0xb40 [ 72.990986][ T5054] nbd_ioctl+0x514/0xc50 [ 72.991594][ T5054] blkdev_ioctl+0x5f8/0xbb8 [ 72.992302][ T5054] block_ioctl+0xa4/0x118 [ 72.992929][ T5054] __arm64_sys_ioctl+0x14c/0x1c8 [ 72.993636][ T5054] invoke_syscall+0x98/0x2b8 [ 72.994315][ T5054] el0_svc_common+0x138/0x258 [ 72.995004][ T5054] do_el0_svc+0x58/0x14c [ 72.995615][ T5054] el0_svc+0x78/0x1e0 [ 72.996149][ T5054] el0t_64_sync_handler+0xcc/0xe4 [ 72.996842][ T5054] el0t_64_sync+0x1a0/0x1a4 [ 72.998398][ T5054] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.002045][ T5055] block nbd0: shutting down sockets [ 73.146395][ T5057] FAULT_INJECTION: forcing a failure. [ 73.146395][ T5057] name failslab, interval 1, probability 0, space 0, times 0 [ 73.148468][ T5057] CPU: 1 PID: 5057 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.149862][ T5057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.151454][ T5057] Call trace: [ 73.151986][ T5057] dump_backtrace+0x0/0x43c [ 73.152716][ T5057] show_stack+0x2c/0x3c [ 73.153414][ T5057] __dump_stack+0x30/0x40 [ 73.154175][ T5057] dump_stack_lvl+0xf8/0x160 [ 73.154936][ T5057] dump_stack+0x1c/0x5c [ 73.155588][ T5057] should_fail+0x3c0/0x51c [ 73.156262][ T5057] __should_failslab+0xbc/0x10c [ 73.157096][ T5057] should_failslab+0x10/0x28 [ 73.157779][ T5057] slab_pre_alloc_hook+0x64/0xec [ 73.158572][ T5057] __kmalloc_node+0xb8/0x520 [ 73.159367][ T5057] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.160186][ T5057] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.161043][ T5057] nbd_start_device+0x14c/0xb40 [ 73.161835][ T5057] nbd_ioctl+0x514/0xc50 [ 73.162517][ T5057] blkdev_ioctl+0x5f8/0xbb8 [ 73.163249][ T5057] block_ioctl+0xa4/0x118 [ 73.163942][ T5057] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.164679][ T5057] invoke_syscall+0x98/0x2b8 [ 73.165443][ T5057] el0_svc_common+0x138/0x258 [ 73.166157][ T5057] do_el0_svc+0x58/0x14c [ 73.166797][ T5057] el0_svc+0x78/0x1e0 [ 73.167366][ T5057] el0t_64_sync_handler+0xcc/0xe4 [ 73.168086][ T5057] el0t_64_sync+0x1a0/0x1a4 [ 73.169514][ T5057] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.172254][ T5058] block nbd0: shutting down sockets [ 73.296128][ T5060] FAULT_INJECTION: forcing a failure. [ 73.296128][ T5060] name failslab, interval 1, probability 0, space 0, times 0 [ 73.297992][ T5060] CPU: 1 PID: 5060 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.299372][ T5060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.300846][ T5060] Call trace: [ 73.301362][ T5060] dump_backtrace+0x0/0x43c [ 73.302064][ T5060] show_stack+0x2c/0x3c [ 73.302730][ T5060] __dump_stack+0x30/0x40 [ 73.303380][ T5060] dump_stack_lvl+0xf8/0x160 [ 73.304071][ T5060] dump_stack+0x1c/0x5c [ 73.304715][ T5060] should_fail+0x3c0/0x51c [ 73.305439][ T5060] __should_failslab+0xbc/0x10c [ 73.306160][ T5060] should_failslab+0x10/0x28 [ 73.306960][ T5060] slab_pre_alloc_hook+0x64/0xec [ 73.307710][ T5060] __kmalloc_node+0xb8/0x520 [ 73.308392][ T5060] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 73.309288][ T5060] nbd_start_device+0x14c/0xb40 [ 73.310102][ T5060] nbd_ioctl+0x514/0xc50 [ 73.310760][ T5060] blkdev_ioctl+0x5f8/0xbb8 [ 73.311479][ T5060] block_ioctl+0xa4/0x118 [ 73.312153][ T5060] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.312905][ T5060] invoke_syscall+0x98/0x2b8 [ 73.313602][ T5060] el0_svc_common+0x138/0x258 [ 73.314303][ T5060] do_el0_svc+0x58/0x14c [ 73.314964][ T5060] el0_svc+0x78/0x1e0 [ 73.315582][ T5060] el0t_64_sync_handler+0xcc/0xe4 [ 73.316374][ T5060] el0t_64_sync+0x1a0/0x1a4 [ 73.319960][ T5061] block nbd0: shutting down sockets 1970/01/01 00:01:13 executed programs: 143 [ 73.466130][ T5063] FAULT_INJECTION: forcing a failure. [ 73.466130][ T5063] name failslab, interval 1, probability 0, space 0, times 0 [ 73.468116][ T5063] CPU: 1 PID: 5063 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.469536][ T5063] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.470980][ T5063] Call trace: [ 73.471453][ T5063] dump_backtrace+0x0/0x43c [ 73.472099][ T5063] show_stack+0x2c/0x3c [ 73.472719][ T5063] __dump_stack+0x30/0x40 [ 73.473408][ T5063] dump_stack_lvl+0xf8/0x160 [ 73.474118][ T5063] dump_stack+0x1c/0x5c [ 73.474779][ T5063] should_fail+0x3c0/0x51c [ 73.475476][ T5063] __should_failslab+0xbc/0x10c [ 73.476222][ T5063] should_failslab+0x10/0x28 [ 73.477022][ T5063] slab_pre_alloc_hook+0x64/0xec [ 73.477785][ T5063] __kmalloc_node+0xb8/0x520 [ 73.478554][ T5063] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.479393][ T5063] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.480288][ T5063] nbd_start_device+0x14c/0xb40 [ 73.481085][ T5063] nbd_ioctl+0x514/0xc50 [ 73.481670][ T5063] blkdev_ioctl+0x5f8/0xbb8 [ 73.482399][ T5063] block_ioctl+0xa4/0x118 [ 73.483040][ T5063] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.483883][ T5063] invoke_syscall+0x98/0x2b8 [ 73.484606][ T5063] el0_svc_common+0x138/0x258 [ 73.485391][ T5063] do_el0_svc+0x58/0x14c [ 73.486076][ T5063] el0_svc+0x78/0x1e0 [ 73.486725][ T5063] el0t_64_sync_handler+0xcc/0xe4 [ 73.487521][ T5063] el0t_64_sync+0x1a0/0x1a4 [ 73.488436][ T5063] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.491007][ T5065] block nbd0: shutting down sockets [ 73.606309][ T5067] FAULT_INJECTION: forcing a failure. [ 73.606309][ T5067] name failslab, interval 1, probability 0, space 0, times 0 [ 73.608427][ T5067] CPU: 0 PID: 5067 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.609700][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.611043][ T5067] Call trace: [ 73.611513][ T5067] dump_backtrace+0x0/0x43c [ 73.612179][ T5067] show_stack+0x2c/0x3c [ 73.612801][ T5067] __dump_stack+0x30/0x40 [ 73.613438][ T5067] dump_stack_lvl+0xf8/0x160 [ 73.614068][ T5067] dump_stack+0x1c/0x5c [ 73.614699][ T5067] should_fail+0x3c0/0x51c [ 73.615327][ T5067] __should_failslab+0xbc/0x10c [ 73.616047][ T5067] should_failslab+0x10/0x28 [ 73.616703][ T5067] slab_pre_alloc_hook+0x64/0xec [ 73.617456][ T5067] __kmalloc_node+0xb8/0x520 [ 73.618095][ T5067] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.618874][ T5067] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.619689][ T5067] nbd_start_device+0x14c/0xb40 [ 73.620429][ T5067] nbd_ioctl+0x514/0xc50 [ 73.621083][ T5067] blkdev_ioctl+0x5f8/0xbb8 [ 73.621766][ T5067] block_ioctl+0xa4/0x118 [ 73.622432][ T5067] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.623194][ T5067] invoke_syscall+0x98/0x2b8 [ 73.623885][ T5067] el0_svc_common+0x138/0x258 [ 73.624588][ T5067] do_el0_svc+0x58/0x14c [ 73.625218][ T5067] el0_svc+0x78/0x1e0 [ 73.625837][ T5067] el0t_64_sync_handler+0xcc/0xe4 [ 73.626606][ T5067] el0t_64_sync+0x1a0/0x1a4 [ 73.627988][ T5067] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.630691][ T5068] block nbd0: shutting down sockets [ 73.766150][ T5070] FAULT_INJECTION: forcing a failure. [ 73.766150][ T5070] name failslab, interval 1, probability 0, space 0, times 0 [ 73.768119][ T5070] CPU: 0 PID: 5070 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.769424][ T5070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.770854][ T5070] Call trace: [ 73.771327][ T5070] dump_backtrace+0x0/0x43c [ 73.772018][ T5070] show_stack+0x2c/0x3c [ 73.772580][ T5070] __dump_stack+0x30/0x40 [ 73.773196][ T5070] dump_stack_lvl+0xf8/0x160 [ 73.773956][ T5070] dump_stack+0x1c/0x5c [ 73.774541][ T5070] should_fail+0x3c0/0x51c [ 73.775235][ T5070] __should_failslab+0xbc/0x10c [ 73.775973][ T5070] should_failslab+0x10/0x28 [ 73.776725][ T5070] slab_pre_alloc_hook+0x64/0xec [ 73.777519][ T5070] __kmalloc_node+0xb8/0x520 [ 73.778244][ T5070] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.779034][ T5070] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.780017][ T5070] nbd_start_device+0x14c/0xb40 [ 73.780841][ T5070] nbd_ioctl+0x514/0xc50 [ 73.781460][ T5070] blkdev_ioctl+0x5f8/0xbb8 [ 73.782198][ T5070] block_ioctl+0xa4/0x118 [ 73.782882][ T5070] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.783640][ T5070] invoke_syscall+0x98/0x2b8 [ 73.784382][ T5070] el0_svc_common+0x138/0x258 [ 73.785095][ T5070] do_el0_svc+0x58/0x14c [ 73.785797][ T5070] el0_svc+0x78/0x1e0 [ 73.786395][ T5070] el0t_64_sync_handler+0xcc/0xe4 [ 73.787131][ T5070] el0t_64_sync+0x1a0/0x1a4 [ 73.788251][ T5070] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.791218][ T5071] block nbd0: shutting down sockets [ 73.906472][ T5073] FAULT_INJECTION: forcing a failure. [ 73.906472][ T5073] name failslab, interval 1, probability 0, space 0, times 0 [ 73.908200][ T5073] CPU: 1 PID: 5073 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 73.909620][ T5073] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 73.911069][ T5073] Call trace: [ 73.911539][ T5073] dump_backtrace+0x0/0x43c [ 73.912261][ T5073] show_stack+0x2c/0x3c [ 73.912823][ T5073] __dump_stack+0x30/0x40 [ 73.913457][ T5073] dump_stack_lvl+0xf8/0x160 [ 73.914106][ T5073] dump_stack+0x1c/0x5c [ 73.914681][ T5073] should_fail+0x3c0/0x51c [ 73.915384][ T5073] __should_failslab+0xbc/0x10c [ 73.916183][ T5073] should_failslab+0x10/0x28 [ 73.916920][ T5073] slab_pre_alloc_hook+0x64/0xec [ 73.917645][ T5073] __kmalloc_node+0xb8/0x520 [ 73.918346][ T5073] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 73.919173][ T5073] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 73.920088][ T5073] nbd_start_device+0x14c/0xb40 [ 73.920870][ T5073] nbd_ioctl+0x514/0xc50 [ 73.921596][ T5073] blkdev_ioctl+0x5f8/0xbb8 [ 73.922324][ T5073] block_ioctl+0xa4/0x118 [ 73.923003][ T5073] __arm64_sys_ioctl+0x14c/0x1c8 [ 73.923719][ T5073] invoke_syscall+0x98/0x2b8 [ 73.924463][ T5073] el0_svc_common+0x138/0x258 [ 73.925170][ T5073] do_el0_svc+0x58/0x14c [ 73.925842][ T5073] el0_svc+0x78/0x1e0 [ 73.926474][ T5073] el0t_64_sync_handler+0xcc/0xe4 [ 73.927334][ T5073] el0t_64_sync+0x1a0/0x1a4 [ 73.928512][ T5073] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 73.931530][ T5074] block nbd0: shutting down sockets [ 74.066114][ T5076] FAULT_INJECTION: forcing a failure. [ 74.066114][ T5076] name failslab, interval 1, probability 0, space 0, times 0 [ 74.068218][ T5076] CPU: 0 PID: 5076 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.069525][ T5076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.071123][ T5076] Call trace: [ 74.071627][ T5076] dump_backtrace+0x0/0x43c [ 74.072300][ T5076] show_stack+0x2c/0x3c [ 74.072920][ T5076] __dump_stack+0x30/0x40 [ 74.073579][ T5076] dump_stack_lvl+0xf8/0x160 [ 74.074233][ T5076] dump_stack+0x1c/0x5c [ 74.074800][ T5076] should_fail+0x3c0/0x51c [ 74.075461][ T5076] __should_failslab+0xbc/0x10c [ 74.076188][ T5076] should_failslab+0x10/0x28 [ 74.076848][ T5076] slab_pre_alloc_hook+0x64/0xec [ 74.077577][ T5076] __kmalloc_node+0xb8/0x520 [ 74.078326][ T5076] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 74.079229][ T5076] nbd_start_device+0x14c/0xb40 [ 74.079999][ T5076] nbd_ioctl+0x514/0xc50 [ 74.080698][ T5076] blkdev_ioctl+0x5f8/0xbb8 [ 74.081299][ T5076] block_ioctl+0xa4/0x118 [ 74.081893][ T5076] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.082616][ T5076] invoke_syscall+0x98/0x2b8 [ 74.083318][ T5076] el0_svc_common+0x138/0x258 [ 74.083981][ T5076] do_el0_svc+0x58/0x14c [ 74.084590][ T5076] el0_svc+0x78/0x1e0 [ 74.085154][ T5076] el0t_64_sync_handler+0xcc/0xe4 [ 74.085898][ T5076] el0t_64_sync+0x1a0/0x1a4 [ 74.089178][ T5077] block nbd0: shutting down sockets [ 74.226139][ T5079] FAULT_INJECTION: forcing a failure. [ 74.226139][ T5079] name failslab, interval 1, probability 0, space 0, times 0 [ 74.228254][ T5079] CPU: 0 PID: 5079 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.229622][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.231293][ T5079] Call trace: [ 74.231790][ T5079] dump_backtrace+0x0/0x43c [ 74.232531][ T5079] show_stack+0x2c/0x3c [ 74.233128][ T5079] __dump_stack+0x30/0x40 [ 74.233724][ T5079] dump_stack_lvl+0xf8/0x160 [ 74.234452][ T5079] dump_stack+0x1c/0x5c [ 74.235188][ T5079] should_fail+0x3c0/0x51c [ 74.235787][ T5079] __should_failslab+0xbc/0x10c [ 74.236586][ T5079] should_failslab+0x10/0x28 [ 74.237345][ T5079] slab_pre_alloc_hook+0x64/0xec [ 74.238054][ T5079] __kmalloc_node+0xb8/0x520 [ 74.238682][ T5079] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.239404][ T5079] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.240251][ T5079] nbd_start_device+0x14c/0xb40 [ 74.240934][ T5079] nbd_ioctl+0x514/0xc50 [ 74.241567][ T5079] blkdev_ioctl+0x5f8/0xbb8 [ 74.242198][ T5079] block_ioctl+0xa4/0x118 [ 74.242856][ T5079] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.243627][ T5079] invoke_syscall+0x98/0x2b8 [ 74.244273][ T5079] el0_svc_common+0x138/0x258 [ 74.244966][ T5079] do_el0_svc+0x58/0x14c [ 74.245578][ T5079] el0_svc+0x78/0x1e0 [ 74.246150][ T5079] el0t_64_sync_handler+0xcc/0xe4 [ 74.246895][ T5079] el0t_64_sync+0x1a0/0x1a4 [ 74.248080][ T5079] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.251022][ T5080] block nbd0: shutting down sockets [ 74.354710][ T5083] block nbd0: Device being setup by another task [ 74.356093][ T5082] FAULT_INJECTION: forcing a failure. [ 74.356093][ T5082] name failslab, interval 1, probability 0, space 0, times 0 [ 74.358100][ T5082] CPU: 0 PID: 5082 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.359569][ T5082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.361164][ T5082] Call trace: [ 74.361676][ T5082] dump_backtrace+0x0/0x43c [ 74.362341][ T5082] show_stack+0x2c/0x3c [ 74.362946][ T5082] __dump_stack+0x30/0x40 [ 74.363546][ T5082] dump_stack_lvl+0xf8/0x160 [ 74.364286][ T5082] dump_stack+0x1c/0x5c [ 74.364940][ T5082] should_fail+0x3c0/0x51c [ 74.365610][ T5082] __should_failslab+0xbc/0x10c [ 74.366324][ T5082] should_failslab+0x10/0x28 [ 74.366998][ T5082] slab_pre_alloc_hook+0x64/0xec [ 74.367756][ T5082] kmem_cache_alloc+0x94/0x3e4 [ 74.368472][ T5082] new_inode_pseudo+0x10c/0x1fc [ 74.369253][ T5082] new_inode+0x38/0x174 [ 74.369883][ T5082] debugfs_create_dir+0xec/0x3f4 [ 74.370611][ T5082] nbd_start_device+0x3c8/0xb40 [ 74.371396][ T5082] nbd_ioctl+0x514/0xc50 [ 74.372035][ T5082] blkdev_ioctl+0x5f8/0xbb8 [ 74.372742][ T5082] block_ioctl+0xa4/0x118 [ 74.373436][ T5082] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.374249][ T5082] invoke_syscall+0x98/0x2b8 [ 74.374939][ T5082] el0_svc_common+0x138/0x258 [ 74.375682][ T5082] do_el0_svc+0x58/0x14c [ 74.376323][ T5082] el0_svc+0x78/0x1e0 [ 74.376926][ T5082] el0t_64_sync_handler+0xcc/0xe4 [ 74.377712][ T5082] el0t_64_sync+0x1a0/0x1a4 [ 74.379055][ T5082] debugfs: out of free dentries, can not create directory 'nbd0' [ 74.380252][ T5082] block nbd0: Failed to create debugfs dir for 'nbd0' [ 74.406820][ T5083] block nbd0: shutting down sockets [ 74.536193][ T5086] FAULT_INJECTION: forcing a failure. [ 74.536193][ T5086] name failslab, interval 1, probability 0, space 0, times 0 [ 74.538080][ T5086] CPU: 1 PID: 5086 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.539358][ T5086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.540774][ T5086] Call trace: [ 74.541324][ T5086] dump_backtrace+0x0/0x43c [ 74.541997][ T5086] show_stack+0x2c/0x3c [ 74.542600][ T5086] __dump_stack+0x30/0x40 [ 74.543185][ T5086] dump_stack_lvl+0xf8/0x160 [ 74.543793][ T5086] dump_stack+0x1c/0x5c [ 74.544335][ T5086] should_fail+0x3c0/0x51c [ 74.544934][ T5086] __should_failslab+0xbc/0x10c [ 74.545690][ T5086] should_failslab+0x10/0x28 [ 74.546370][ T5086] slab_pre_alloc_hook+0x64/0xec [ 74.547055][ T5086] __kmalloc_node+0xb8/0x520 [ 74.547886][ T5086] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.548721][ T5086] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.549579][ T5086] nbd_start_device+0x14c/0xb40 [ 74.550321][ T5086] nbd_ioctl+0x514/0xc50 [ 74.550997][ T5086] blkdev_ioctl+0x5f8/0xbb8 [ 74.551721][ T5086] block_ioctl+0xa4/0x118 [ 74.552435][ T5086] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.553238][ T5086] invoke_syscall+0x98/0x2b8 [ 74.553974][ T5086] el0_svc_common+0x138/0x258 [ 74.554731][ T5086] do_el0_svc+0x58/0x14c [ 74.555407][ T5086] el0_svc+0x78/0x1e0 [ 74.556026][ T5086] el0t_64_sync_handler+0xcc/0xe4 [ 74.556759][ T5086] el0t_64_sync+0x1a0/0x1a4 [ 74.558222][ T5086] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.561034][ T5087] block nbd0: shutting down sockets [ 74.684729][ T5090] block nbd0: Device being setup by another task [ 74.685960][ T5089] FAULT_INJECTION: forcing a failure. [ 74.685960][ T5089] name failslab, interval 1, probability 0, space 0, times 0 [ 74.687770][ T5089] CPU: 0 PID: 5089 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.689051][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.690503][ T5089] Call trace: [ 74.691001][ T5089] dump_backtrace+0x0/0x43c [ 74.691688][ T5089] show_stack+0x2c/0x3c [ 74.692390][ T5089] __dump_stack+0x30/0x40 [ 74.693121][ T5089] dump_stack_lvl+0xf8/0x160 [ 74.693862][ T5089] dump_stack+0x1c/0x5c [ 74.694521][ T5089] should_fail+0x3c0/0x51c [ 74.695184][ T5089] __should_failslab+0xbc/0x10c [ 74.695923][ T5089] should_failslab+0x10/0x28 [ 74.696602][ T5089] slab_pre_alloc_hook+0x64/0xec [ 74.697309][ T5089] kmem_cache_alloc+0x94/0x3e4 [ 74.698002][ T5089] new_inode_pseudo+0x10c/0x1fc [ 74.698676][ T5089] new_inode+0x38/0x174 [ 74.699300][ T5089] debugfs_create_dir+0xec/0x3f4 [ 74.700053][ T5089] nbd_start_device+0x3c8/0xb40 [ 74.700761][ T5089] nbd_ioctl+0x514/0xc50 [ 74.701376][ T5089] blkdev_ioctl+0x5f8/0xbb8 [ 74.702106][ T5089] block_ioctl+0xa4/0x118 [ 74.702826][ T5089] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.703617][ T5089] invoke_syscall+0x98/0x2b8 [ 74.704353][ T5089] el0_svc_common+0x138/0x258 [ 74.705034][ T5089] do_el0_svc+0x58/0x14c [ 74.705657][ T5089] el0_svc+0x78/0x1e0 [ 74.706247][ T5089] el0t_64_sync_handler+0xcc/0xe4 [ 74.707047][ T5089] el0t_64_sync+0x1a0/0x1a4 [ 74.707804][ T5089] debugfs: out of free dentries, can not create directory 'nbd0' [ 74.709004][ T5089] block nbd0: Failed to create debugfs dir for 'nbd0' [ 74.726841][ T5090] block nbd0: shutting down sockets [ 74.886096][ T5093] FAULT_INJECTION: forcing a failure. [ 74.886096][ T5093] name failslab, interval 1, probability 0, space 0, times 0 [ 74.888029][ T5093] CPU: 1 PID: 5093 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 74.889313][ T5093] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 74.890894][ T5093] Call trace: [ 74.891398][ T5093] dump_backtrace+0x0/0x43c [ 74.892188][ T5093] show_stack+0x2c/0x3c [ 74.892871][ T5093] __dump_stack+0x30/0x40 [ 74.893580][ T5093] dump_stack_lvl+0xf8/0x160 [ 74.894291][ T5093] dump_stack+0x1c/0x5c [ 74.894984][ T5093] should_fail+0x3c0/0x51c [ 74.895710][ T5093] __should_failslab+0xbc/0x10c [ 74.896550][ T5093] should_failslab+0x10/0x28 [ 74.897311][ T5093] slab_pre_alloc_hook+0x64/0xec [ 74.898141][ T5093] __kmalloc_node+0xb8/0x520 [ 74.898863][ T5093] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 74.899720][ T5093] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 74.900534][ T5093] nbd_start_device+0x14c/0xb40 [ 74.901230][ T5093] nbd_ioctl+0x514/0xc50 [ 74.901905][ T5093] blkdev_ioctl+0x5f8/0xbb8 [ 74.902567][ T5093] block_ioctl+0xa4/0x118 [ 74.903171][ T5093] __arm64_sys_ioctl+0x14c/0x1c8 [ 74.903962][ T5093] invoke_syscall+0x98/0x2b8 [ 74.904660][ T5093] el0_svc_common+0x138/0x258 [ 74.905355][ T5093] do_el0_svc+0x58/0x14c [ 74.906001][ T5093] el0_svc+0x78/0x1e0 [ 74.906632][ T5093] el0t_64_sync_handler+0xcc/0xe4 [ 74.907471][ T5093] el0t_64_sync+0x1a0/0x1a4 [ 74.908312][ T5093] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 74.910883][ T5094] block nbd0: shutting down sockets [ 75.066355][ T5096] FAULT_INJECTION: forcing a failure. [ 75.066355][ T5096] name failslab, interval 1, probability 0, space 0, times 0 [ 75.068471][ T5096] CPU: 1 PID: 5096 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.069844][ T5096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.071377][ T5096] Call trace: [ 75.071826][ T5096] dump_backtrace+0x0/0x43c [ 75.072636][ T5096] show_stack+0x2c/0x3c [ 75.073277][ T5096] __dump_stack+0x30/0x40 [ 75.073961][ T5096] dump_stack_lvl+0xf8/0x160 [ 75.074616][ T5096] dump_stack+0x1c/0x5c [ 75.075262][ T5096] should_fail+0x3c0/0x51c [ 75.075931][ T5096] __should_failslab+0xbc/0x10c [ 75.076684][ T5096] should_failslab+0x10/0x28 [ 75.077443][ T5096] slab_pre_alloc_hook+0x64/0xec [ 75.078209][ T5096] __kmalloc_node+0xb8/0x520 [ 75.078944][ T5096] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.079875][ T5096] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.080756][ T5096] nbd_start_device+0x14c/0xb40 [ 75.081523][ T5096] nbd_ioctl+0x514/0xc50 [ 75.082164][ T5096] blkdev_ioctl+0x5f8/0xbb8 [ 75.082851][ T5096] block_ioctl+0xa4/0x118 [ 75.083503][ T5096] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.084230][ T5096] invoke_syscall+0x98/0x2b8 [ 75.084934][ T5096] el0_svc_common+0x138/0x258 [ 75.085633][ T5096] do_el0_svc+0x58/0x14c [ 75.086342][ T5096] el0_svc+0x78/0x1e0 [ 75.086953][ T5096] el0t_64_sync_handler+0xcc/0xe4 [ 75.087743][ T5096] el0t_64_sync+0x1a0/0x1a4 [ 75.088968][ T5096] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.091517][ T5097] block nbd0: shutting down sockets [ 75.246122][ T5099] FAULT_INJECTION: forcing a failure. [ 75.246122][ T5099] name failslab, interval 1, probability 0, space 0, times 0 [ 75.248011][ T5099] CPU: 0 PID: 5099 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.249305][ T5099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.250737][ T5099] Call trace: [ 75.251259][ T5099] dump_backtrace+0x0/0x43c [ 75.251969][ T5099] show_stack+0x2c/0x3c [ 75.252559][ T5099] __dump_stack+0x30/0x40 [ 75.253178][ T5099] dump_stack_lvl+0xf8/0x160 [ 75.253808][ T5099] dump_stack+0x1c/0x5c [ 75.254379][ T5099] should_fail+0x3c0/0x51c [ 75.255113][ T5099] __should_failslab+0xbc/0x10c [ 75.255858][ T5099] should_failslab+0x10/0x28 [ 75.256607][ T5099] slab_pre_alloc_hook+0x64/0xec [ 75.257433][ T5099] __kmalloc_node+0xb8/0x520 [ 75.258170][ T5099] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.259038][ T5099] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.259946][ T5099] nbd_start_device+0x14c/0xb40 [ 75.260694][ T5099] nbd_ioctl+0x514/0xc50 [ 75.261389][ T5099] blkdev_ioctl+0x5f8/0xbb8 [ 75.262088][ T5099] block_ioctl+0xa4/0x118 [ 75.262704][ T5099] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.263417][ T5099] invoke_syscall+0x98/0x2b8 [ 75.264074][ T5099] el0_svc_common+0x138/0x258 [ 75.264843][ T5099] do_el0_svc+0x58/0x14c [ 75.265502][ T5099] el0_svc+0x78/0x1e0 [ 75.266125][ T5099] el0t_64_sync_handler+0xcc/0xe4 [ 75.266874][ T5099] el0t_64_sync+0x1a0/0x1a4 [ 75.267701][ T5099] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.270363][ T5100] block nbd0: shutting down sockets [ 75.416295][ T5102] FAULT_INJECTION: forcing a failure. [ 75.416295][ T5102] name failslab, interval 1, probability 0, space 0, times 0 [ 75.418229][ T5102] CPU: 1 PID: 5102 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.419552][ T5102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.421200][ T5102] Call trace: [ 75.421713][ T5102] dump_backtrace+0x0/0x43c [ 75.422404][ T5102] show_stack+0x2c/0x3c [ 75.423067][ T5102] __dump_stack+0x30/0x40 [ 75.423764][ T5102] dump_stack_lvl+0xf8/0x160 [ 75.424462][ T5102] dump_stack+0x1c/0x5c [ 75.425148][ T5102] should_fail+0x3c0/0x51c [ 75.425852][ T5102] __should_failslab+0xbc/0x10c [ 75.426697][ T5102] should_failslab+0x10/0x28 [ 75.427394][ T5102] slab_pre_alloc_hook+0x64/0xec [ 75.428203][ T5102] __kmalloc_node+0xb8/0x520 [ 75.428900][ T5102] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.429742][ T5102] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.430646][ T5102] nbd_start_device+0x14c/0xb40 [ 75.431462][ T5102] nbd_ioctl+0x514/0xc50 [ 75.432131][ T5102] blkdev_ioctl+0x5f8/0xbb8 [ 75.432881][ T5102] block_ioctl+0xa4/0x118 [ 75.433547][ T5102] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.434372][ T5102] invoke_syscall+0x98/0x2b8 [ 75.435163][ T5102] el0_svc_common+0x138/0x258 [ 75.435864][ T5102] do_el0_svc+0x58/0x14c [ 75.436507][ T5102] el0_svc+0x78/0x1e0 [ 75.437090][ T5102] el0t_64_sync_handler+0xcc/0xe4 [ 75.437875][ T5102] el0t_64_sync+0x1a0/0x1a4 [ 75.438661][ T5102] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.441427][ T5103] block nbd0: shutting down sockets [ 75.576169][ T5105] FAULT_INJECTION: forcing a failure. [ 75.576169][ T5105] name failslab, interval 1, probability 0, space 0, times 0 [ 75.578312][ T5105] CPU: 1 PID: 5105 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.579796][ T5105] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.581342][ T5105] Call trace: [ 75.581824][ T5105] dump_backtrace+0x0/0x43c [ 75.582515][ T5105] show_stack+0x2c/0x3c [ 75.583153][ T5105] __dump_stack+0x30/0x40 [ 75.583902][ T5105] dump_stack_lvl+0xf8/0x160 [ 75.584611][ T5105] dump_stack+0x1c/0x5c [ 75.585316][ T5105] should_fail+0x3c0/0x51c [ 75.586024][ T5105] __should_failslab+0xbc/0x10c [ 75.586800][ T5105] should_failslab+0x10/0x28 [ 75.587502][ T5105] slab_pre_alloc_hook+0x64/0xec [ 75.588232][ T5105] __kmalloc_node+0xb8/0x520 [ 75.588911][ T5105] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 75.589737][ T5105] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 75.590618][ T5105] nbd_start_device+0x14c/0xb40 [ 75.591399][ T5105] nbd_ioctl+0x514/0xc50 [ 75.592077][ T5105] blkdev_ioctl+0x5f8/0xbb8 [ 75.592785][ T5105] block_ioctl+0xa4/0x118 [ 75.593432][ T5105] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.594164][ T5105] invoke_syscall+0x98/0x2b8 [ 75.594831][ T5105] el0_svc_common+0x138/0x258 [ 75.595546][ T5105] do_el0_svc+0x58/0x14c [ 75.596224][ T5105] el0_svc+0x78/0x1e0 [ 75.596835][ T5105] el0t_64_sync_handler+0xcc/0xe4 [ 75.597678][ T5105] el0t_64_sync+0x1a0/0x1a4 [ 75.598803][ T5105] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 75.601516][ T5106] block nbd0: shutting down sockets [ 75.714756][ T5109] block nbd0: Device being setup by another task [ 75.716214][ T5108] FAULT_INJECTION: forcing a failure. [ 75.716214][ T5108] name failslab, interval 1, probability 0, space 0, times 0 [ 75.718282][ T5108] CPU: 1 PID: 5108 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.719658][ T5108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.721274][ T5108] Call trace: [ 75.721731][ T5108] dump_backtrace+0x0/0x43c [ 75.722424][ T5108] show_stack+0x2c/0x3c [ 75.723020][ T5108] __dump_stack+0x30/0x40 [ 75.723679][ T5108] dump_stack_lvl+0xf8/0x160 [ 75.724399][ T5108] dump_stack+0x1c/0x5c [ 75.725033][ T5108] should_fail+0x3c0/0x51c [ 75.725718][ T5108] __should_failslab+0xbc/0x10c [ 75.726503][ T5108] should_failslab+0x10/0x28 [ 75.727205][ T5108] slab_pre_alloc_hook+0x64/0xec [ 75.727956][ T5108] kmem_cache_alloc+0x94/0x3e4 [ 75.728741][ T5108] new_inode_pseudo+0x10c/0x1fc [ 75.729530][ T5108] new_inode+0x38/0x174 [ 75.730166][ T5108] debugfs_create_dir+0xec/0x3f4 [ 75.730920][ T5108] nbd_start_device+0x3c8/0xb40 [ 75.731700][ T5108] nbd_ioctl+0x514/0xc50 [ 75.732329][ T5108] blkdev_ioctl+0x5f8/0xbb8 [ 75.733066][ T5108] block_ioctl+0xa4/0x118 [ 75.733753][ T5108] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.734574][ T5108] invoke_syscall+0x98/0x2b8 [ 75.735303][ T5108] el0_svc_common+0x138/0x258 [ 75.736084][ T5108] do_el0_svc+0x58/0x14c [ 75.736747][ T5108] el0_svc+0x78/0x1e0 [ 75.737374][ T5108] el0t_64_sync_handler+0xcc/0xe4 [ 75.738191][ T5108] el0t_64_sync+0x1a0/0x1a4 [ 75.739611][ T5108] debugfs: out of free dentries, can not create directory 'nbd0' [ 75.740826][ T5108] block nbd0: Failed to create debugfs dir for 'nbd0' [ 75.766841][ T5109] block nbd0: shutting down sockets [ 75.874710][ T5112] block nbd0: Device being setup by another task [ 75.876081][ T5111] FAULT_INJECTION: forcing a failure. [ 75.876081][ T5111] name failslab, interval 1, probability 0, space 0, times 0 [ 75.877926][ T5111] CPU: 0 PID: 5111 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 75.879349][ T5111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 75.880806][ T5111] Call trace: [ 75.881283][ T5111] dump_backtrace+0x0/0x43c [ 75.881889][ T5111] show_stack+0x2c/0x3c [ 75.882475][ T5111] __dump_stack+0x30/0x40 [ 75.883122][ T5111] dump_stack_lvl+0xf8/0x160 [ 75.883725][ T5111] dump_stack+0x1c/0x5c [ 75.884288][ T5111] should_fail+0x3c0/0x51c [ 75.884969][ T5111] __should_failslab+0xbc/0x10c [ 75.885599][ T5111] should_failslab+0x10/0x28 [ 75.886228][ T5111] slab_pre_alloc_hook+0x64/0xec [ 75.886998][ T5111] kmem_cache_alloc+0x94/0x3e4 [ 75.887666][ T5111] __d_alloc+0x3c/0x65c [ 75.888270][ T5111] d_alloc_parallel+0x80/0x1104 [ 75.888995][ T5111] __lookup_slow+0x104/0x380 [ 75.889696][ T5111] lookup_one_len+0x178/0x28c [ 75.890417][ T5111] start_creating+0x19c/0x2e0 [ 75.891139][ T5111] debugfs_create_dir+0x30/0x3f4 [ 75.891910][ T5111] nbd_start_device+0x3c8/0xb40 [ 75.892644][ T5111] nbd_ioctl+0x514/0xc50 [ 75.893331][ T5111] blkdev_ioctl+0x5f8/0xbb8 [ 75.894028][ T5111] block_ioctl+0xa4/0x118 [ 75.894677][ T5111] __arm64_sys_ioctl+0x14c/0x1c8 [ 75.895413][ T5111] invoke_syscall+0x98/0x2b8 [ 75.896064][ T5111] el0_svc_common+0x138/0x258 [ 75.896808][ T5111] do_el0_svc+0x58/0x14c [ 75.897462][ T5111] el0_svc+0x78/0x1e0 [ 75.898123][ T5111] el0t_64_sync_handler+0xcc/0xe4 [ 75.898909][ T5111] el0t_64_sync+0x1a0/0x1a4 [ 75.899641][ T5111] block nbd0: Failed to create debugfs dir for 'nbd0' [ 75.927193][ T5112] block nbd0: shutting down sockets [ 76.086266][ T5114] FAULT_INJECTION: forcing a failure. [ 76.086266][ T5114] name failslab, interval 1, probability 0, space 0, times 0 [ 76.088160][ T5114] CPU: 0 PID: 5114 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.089405][ T5114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.090836][ T5114] Call trace: [ 76.091300][ T5114] dump_backtrace+0x0/0x43c [ 76.091924][ T5114] show_stack+0x2c/0x3c [ 76.092513][ T5114] __dump_stack+0x30/0x40 [ 76.093170][ T5114] dump_stack_lvl+0xf8/0x160 [ 76.093813][ T5114] dump_stack+0x1c/0x5c [ 76.094406][ T5114] should_fail+0x3c0/0x51c [ 76.095131][ T5114] __should_failslab+0xbc/0x10c [ 76.095870][ T5114] should_failslab+0x10/0x28 [ 76.096557][ T5114] slab_pre_alloc_hook+0x64/0xec [ 76.097269][ T5114] __kmalloc_node+0xb8/0x520 [ 76.097981][ T5114] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 76.098919][ T5114] nbd_start_device+0x14c/0xb40 [ 76.099631][ T5114] nbd_ioctl+0x514/0xc50 [ 76.100296][ T5114] blkdev_ioctl+0x5f8/0xbb8 [ 76.100971][ T5114] block_ioctl+0xa4/0x118 [ 76.101594][ T5114] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.102328][ T5114] invoke_syscall+0x98/0x2b8 [ 76.103013][ T5114] el0_svc_common+0x138/0x258 [ 76.103681][ T5114] do_el0_svc+0x58/0x14c [ 76.104363][ T5114] el0_svc+0x78/0x1e0 [ 76.104998][ T5114] el0t_64_sync_handler+0xcc/0xe4 [ 76.105697][ T5114] el0t_64_sync+0x1a0/0x1a4 [ 76.109345][ T5115] block nbd0: shutting down sockets [ 76.246160][ T5118] FAULT_INJECTION: forcing a failure. [ 76.246160][ T5118] name failslab, interval 1, probability 0, space 0, times 0 [ 76.248379][ T5118] CPU: 1 PID: 5118 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.249815][ T5118] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.251284][ T5118] Call trace: [ 76.251815][ T5118] dump_backtrace+0x0/0x43c [ 76.252568][ T5118] show_stack+0x2c/0x3c [ 76.253274][ T5118] __dump_stack+0x30/0x40 [ 76.253980][ T5118] dump_stack_lvl+0xf8/0x160 [ 76.254736][ T5118] dump_stack+0x1c/0x5c [ 76.255431][ T5118] should_fail+0x3c0/0x51c [ 76.256148][ T5118] __should_failslab+0xbc/0x10c [ 76.256936][ T5118] should_failslab+0x10/0x28 [ 76.257653][ T5118] slab_pre_alloc_hook+0x64/0xec [ 76.258455][ T5118] __kmalloc_node+0xb8/0x520 [ 76.259142][ T5118] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.259952][ T5118] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.260873][ T5118] nbd_start_device+0x14c/0xb40 [ 76.261704][ T5118] nbd_ioctl+0x514/0xc50 [ 76.262419][ T5118] blkdev_ioctl+0x5f8/0xbb8 [ 76.263099][ T5118] block_ioctl+0xa4/0x118 [ 76.263803][ T5118] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.264629][ T5118] invoke_syscall+0x98/0x2b8 [ 76.265309][ T5118] el0_svc_common+0x138/0x258 [ 76.266003][ T5118] do_el0_svc+0x58/0x14c [ 76.266691][ T5118] el0_svc+0x78/0x1e0 [ 76.267335][ T5118] el0t_64_sync_handler+0xcc/0xe4 [ 76.268144][ T5118] el0t_64_sync+0x1a0/0x1a4 [ 76.269493][ T5118] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.272087][ T5117] block nbd0: shutting down sockets [ 76.426125][ T5120] FAULT_INJECTION: forcing a failure. [ 76.426125][ T5120] name failslab, interval 1, probability 0, space 0, times 0 [ 76.428006][ T5120] CPU: 1 PID: 5120 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.429317][ T5120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.430899][ T5120] Call trace: [ 76.431424][ T5120] dump_backtrace+0x0/0x43c [ 76.432170][ T5120] show_stack+0x2c/0x3c [ 76.432849][ T5120] __dump_stack+0x30/0x40 [ 76.433494][ T5120] dump_stack_lvl+0xf8/0x160 [ 76.434183][ T5120] dump_stack+0x1c/0x5c [ 76.434806][ T5120] should_fail+0x3c0/0x51c [ 76.435463][ T5120] __should_failslab+0xbc/0x10c [ 76.436222][ T5120] should_failslab+0x10/0x28 [ 76.436896][ T5120] slab_pre_alloc_hook+0x64/0xec [ 76.437625][ T5120] __kmalloc_node+0xb8/0x520 [ 76.438419][ T5120] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.439354][ T5120] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.440244][ T5120] nbd_start_device+0x14c/0xb40 [ 76.441002][ T5120] nbd_ioctl+0x514/0xc50 [ 76.441704][ T5120] blkdev_ioctl+0x5f8/0xbb8 [ 76.442389][ T5120] block_ioctl+0xa4/0x118 [ 76.443014][ T5120] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.443814][ T5120] invoke_syscall+0x98/0x2b8 [ 76.444544][ T5120] el0_svc_common+0x138/0x258 [ 76.445308][ T5120] do_el0_svc+0x58/0x14c [ 76.445951][ T5120] el0_svc+0x78/0x1e0 [ 76.446563][ T5120] el0t_64_sync_handler+0xcc/0xe4 [ 76.447369][ T5120] el0t_64_sync+0x1a0/0x1a4 [ 76.448249][ T5120] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.450816][ T5121] block nbd0: shutting down sockets [ 76.596488][ T5123] FAULT_INJECTION: forcing a failure. [ 76.596488][ T5123] name failslab, interval 1, probability 0, space 0, times 0 [ 76.598456][ T5123] CPU: 1 PID: 5123 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.599835][ T5123] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.601265][ T5123] Call trace: [ 76.601739][ T5123] dump_backtrace+0x0/0x43c [ 76.602464][ T5123] show_stack+0x2c/0x3c [ 76.603086][ T5123] __dump_stack+0x30/0x40 [ 76.603799][ T5123] dump_stack_lvl+0xf8/0x160 [ 76.604578][ T5123] dump_stack+0x1c/0x5c [ 76.605295][ T5123] should_fail+0x3c0/0x51c [ 76.606000][ T5123] __should_failslab+0xbc/0x10c [ 76.606762][ T5123] should_failslab+0x10/0x28 [ 76.607520][ T5123] slab_pre_alloc_hook+0x64/0xec [ 76.608270][ T5123] __kmalloc_node+0xb8/0x520 [ 76.609015][ T5123] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.609844][ T5123] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.610767][ T5123] nbd_start_device+0x14c/0xb40 [ 76.611533][ T5123] nbd_ioctl+0x514/0xc50 [ 76.612207][ T5123] blkdev_ioctl+0x5f8/0xbb8 [ 76.612892][ T5123] block_ioctl+0xa4/0x118 [ 76.613552][ T5123] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.614264][ T5123] invoke_syscall+0x98/0x2b8 [ 76.614958][ T5123] el0_svc_common+0x138/0x258 [ 76.615694][ T5123] do_el0_svc+0x58/0x14c [ 76.616344][ T5123] el0_svc+0x78/0x1e0 [ 76.616942][ T5123] el0t_64_sync_handler+0xcc/0xe4 [ 76.617629][ T5123] el0t_64_sync+0x1a0/0x1a4 [ 76.618700][ T5123] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.621317][ T5124] block nbd0: shutting down sockets [ 76.766199][ T5127] FAULT_INJECTION: forcing a failure. [ 76.766199][ T5127] name failslab, interval 1, probability 0, space 0, times 0 [ 76.768177][ T5127] CPU: 1 PID: 5127 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.769713][ T5127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.771140][ T5127] Call trace: [ 76.771588][ T5127] dump_backtrace+0x0/0x43c [ 76.772231][ T5127] show_stack+0x2c/0x3c [ 76.772862][ T5127] __dump_stack+0x30/0x40 [ 76.773537][ T5127] dump_stack_lvl+0xf8/0x160 [ 76.774353][ T5127] dump_stack+0x1c/0x5c [ 76.775035][ T5127] should_fail+0x3c0/0x51c [ 76.775731][ T5127] __should_failslab+0xbc/0x10c [ 76.776454][ T5127] should_failslab+0x10/0x28 [ 76.777089][ T5127] slab_pre_alloc_hook+0x64/0xec [ 76.777890][ T5127] __kmalloc_node+0xb8/0x520 [ 76.778649][ T5127] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.779550][ T5127] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.780381][ T5127] nbd_start_device+0x14c/0xb40 [ 76.781172][ T5127] nbd_ioctl+0x514/0xc50 [ 76.781866][ T5127] blkdev_ioctl+0x5f8/0xbb8 [ 76.782581][ T5127] block_ioctl+0xa4/0x118 [ 76.783304][ T5127] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.784113][ T5127] invoke_syscall+0x98/0x2b8 [ 76.784789][ T5127] el0_svc_common+0x138/0x258 [ 76.785506][ T5127] do_el0_svc+0x58/0x14c [ 76.786126][ T5127] el0_svc+0x78/0x1e0 [ 76.786728][ T5127] el0t_64_sync_handler+0xcc/0xe4 [ 76.787462][ T5127] el0t_64_sync+0x1a0/0x1a4 [ 76.788209][ T5127] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.790822][ T5126] block nbd0: shutting down sockets [ 76.936224][ T5129] FAULT_INJECTION: forcing a failure. [ 76.936224][ T5129] name failslab, interval 1, probability 0, space 0, times 0 [ 76.938206][ T5129] CPU: 0 PID: 5129 Comm: syz-executor.0 Tainted: G W syzkaller #0 [ 76.939672][ T5129] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 [ 76.941280][ T5129] Call trace: [ 76.941845][ T5129] dump_backtrace+0x0/0x43c [ 76.942532][ T5129] show_stack+0x2c/0x3c [ 76.943180][ T5129] __dump_stack+0x30/0x40 [ 76.943848][ T5129] dump_stack_lvl+0xf8/0x160 [ 76.944563][ T5129] dump_stack+0x1c/0x5c [ 76.945163][ T5129] should_fail+0x3c0/0x51c [ 76.945810][ T5129] __should_failslab+0xbc/0x10c [ 76.946645][ T5129] should_failslab+0x10/0x28 [ 76.947336][ T5129] slab_pre_alloc_hook+0x64/0xec [ 76.948099][ T5129] __kmalloc_node+0xb8/0x520 [ 76.948754][ T5129] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 76.949559][ T5129] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 76.950458][ T5129] nbd_start_device+0x14c/0xb40 [ 76.951192][ T5129] nbd_ioctl+0x514/0xc50 [ 76.951843][ T5129] blkdev_ioctl+0x5f8/0xbb8 [ 76.952602][ T5129] block_ioctl+0xa4/0x118 [ 76.953308][ T5129] __arm64_sys_ioctl+0x14c/0x1c8 [ 76.954103][ T5129] invoke_syscall+0x98/0x2b8 [ 76.954812][ T5129] el0_svc_common+0x138/0x258 [ 76.955550][ T5129] do_el0_svc+0x58/0x14c [ 76.956251][ T5129] el0_svc+0x78/0x1e0 [ 76.956906][ T5129] el0t_64_sync_handler+0xcc/0xe4 [ 76.957707][ T5129] el0t_64_sync+0x1a0/0x1a4 [ 76.959361][ T5129] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 76.962156][ T5130] block nbd0: shutting down sockets