[ 399.729204][ T43] block nbd0: Receive control failed (result -32) [ 399.729446][ T4304] block nbd0: shutting down sockets [ 399.873559][ T4310] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 400.571062][ T43] block nbd0: Receive control failed (result -32) [ 400.571078][ T3242] block nbd0: Receive control failed (result -32) [ 400.573114][ T4310] block nbd0: shutting down sockets [ 400.733392][ T4312] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 401.415482][ T43] block nbd0: Receive control failed (result -32) [ 401.415580][ T4312] block nbd0: shutting down sockets [ 401.522082][ T4315] block nbd0: Device being setup by another task [ 401.523964][ T4314] FAULT_INJECTION: forcing a failure. [ 401.523964][ T4314] name failslab, interval 1, probability 0, space 0, times 0 [ 401.527210][ T4314] CPU: 0 PID: 4314 Comm: syz-executor.0 Not tainted 6.1.88-syzkaller #0 [ 401.529429][ T4314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 401.532078][ T4314] Call trace: [ 401.532939][ T4314] dump_backtrace+0x1c8/0x1f4 [ 401.534185][ T4314] show_stack+0x2c/0x3c [ 401.535287][ T4314] dump_stack_lvl+0xc0/0x104 [ 401.536537][ T4314] dump_stack+0x1c/0x4c [ 401.537648][ T4314] should_fail_ex+0x1bc/0x1e0 [ 401.538860][ T4314] __should_failslab+0x64/0x78 [ 401.540136][ T4314] should_failslab+0x10/0x28 [ 401.541393][ T4314] slab_pre_alloc_hook+0x54/0x1f4 [ 401.542784][ T4314] kmem_cache_alloc_lru+0x60/0x2ac [ 401.544126][ T4314] alloc_inode+0x7c/0x104 [ 401.545275][ T4314] new_inode+0x2c/0xc0 [ 401.546337][ T4314] debugfs_create_dir+0x98/0x1e0 [ 401.547682][ T4314] nbd_start_device+0x1b4/0x510 [ 401.548959][ T4314] nbd_ioctl+0x228/0x66c [ 401.550064][ T4314] blkdev_ioctl+0x218/0x664 [ 401.551311][ T4314] __arm64_sys_ioctl+0xd0/0x148 [ 401.552622][ T4314] invoke_syscall+0x64/0x178 [ 401.553822][ T4314] el0_svc_common+0xb8/0x174 [ 401.555032][ T4314] do_el0_svc+0x48/0x174 [ 401.556169][ T4314] el0_svc+0x34/0x110 [ 401.557204][ T4314] el0t_64_sync_handler+0x84/0xf0 [ 401.558578][ T4314] el0t_64_sync+0x18c/0x190 [ 401.559850][ T4314] debugfs: out of free dentries, can not create directory 'nbd0' [ 401.561879][ T4314] block nbd0: Failed to create debugfs dir for 'nbd0' [ 402.257607][ T3242] block nbd0: Receive control failed (result -32) [ 402.257790][ T4314] block nbd0: shutting down sockets [ 402.423376][ T4318] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 403.100102][ T43] block nbd0: Receive control failed (result -32) [ 403.100149][ T4318] block nbd0: shutting down sockets [ 403.212123][ T4321] block nbd0: Device being setup by another task [ 403.213733][ T4320] FAULT_INJECTION: forcing a failure. [ 403.213733][ T4320] name failslab, interval 1, probability 0, space 0, times 0 [ 403.216910][ T4320] CPU: 1 PID: 4320 Comm: syz-executor.0 Not tainted 6.1.88-syzkaller #0 [ 403.218933][ T4320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 403.221527][ T4320] Call trace: [ 403.222327][ T4320] dump_backtrace+0x1c8/0x1f4 [ 403.223572][ T4320] show_stack+0x2c/0x3c [ 403.224582][ T4320] dump_stack_lvl+0xc0/0x104 [ 403.225789][ T4320] dump_stack+0x1c/0x4c [ 403.226883][ T4320] should_fail_ex+0x1bc/0x1e0 [ 403.228048][ T4320] __should_failslab+0x64/0x78 [ 403.229244][ T4320] should_failslab+0x10/0x28 [ 403.230456][ T4320] slab_pre_alloc_hook+0x54/0x1f4 [ 403.231736][ T4320] kmem_cache_alloc_lru+0x60/0x2ac [ 403.233067][ T4320] alloc_inode+0x7c/0x104 [ 403.234156][ T4320] new_inode+0x2c/0xc0 [ 403.235180][ T4320] debugfs_create_dir+0x98/0x1e0 [ 403.236390][ T4320] nbd_start_device+0x1b4/0x510 [ 403.237703][ T4320] nbd_ioctl+0x228/0x66c [ 403.238792][ T4320] blkdev_ioctl+0x218/0x664 [ 403.239993][ T4320] __arm64_sys_ioctl+0xd0/0x148 [ 403.241221][ T4320] invoke_syscall+0x64/0x178 [ 403.242415][ T4320] el0_svc_common+0xb8/0x174 [ 403.243642][ T4320] do_el0_svc+0x48/0x174 [ 403.244768][ T4320] el0_svc+0x34/0x110 [ 403.245757][ T4320] el0t_64_sync_handler+0x84/0xf0 [ 403.246975][ T4320] el0t_64_sync+0x18c/0x190 [ 403.248154][ T4320] debugfs: out of free dentries, can not create directory 'nbd0' [ 403.250073][ T4320] block nbd0: Failed to create debugfs dir for 'nbd0' [ 403.942875][ T3242] block nbd0: Receive control failed (result -32) [ 403.943134][ T4320] block nbd0: shutting down sockets [ 404.242686][ T11] device bridge_slave_1 left promiscuous mode [ 404.244385][ T11] bridge0: port 2(bridge_slave_1) entered disabled state [ 404.282497][ T11] device bridge_slave_0 left promiscuous mode [ 404.284194][ T11] bridge0: port 1(bridge_slave_0) entered disabled state [ 404.332848][ T11] device veth0_macvtap left promiscuous mode [ 404.334491][ T11] device veth1_vlan left promiscuous mode [ 404.335955][ T11] device veth0_vlan left promiscuous mode Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. [ 405.003631][ T4331] FAULT_INJECTION: forcing a failure. [ 405.003631][ T4331] name failslab, interval 1, probability 0, space 0, times 0 [ 405.006967][ T4331] CPU: 0 PID: 4331 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 405.009076][ T4331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 405.011665][ T4331] Call trace: [ 405.012489][ T4331] dump_backtrace+0x1c8/0x1f4 [ 405.013662][ T4331] show_stack+0x2c/0x3c [ 405.014716][ T4331] dump_stack_lvl+0xc0/0x104 [ 405.015914][ T4331] dump_stack+0x1c/0x4c [ 405.017008][ T4331] should_fail_ex+0x1bc/0x1e0 [ 405.018259][ T4331] __should_failslab+0x64/0x78 [ 405.019459][ T4331] should_failslab+0x10/0x28 [ 405.020628][ T4331] __kmem_cache_alloc_node+0x6c/0x348 [ 405.022023][ T4331] __kmalloc+0x98/0xd8 [ 405.023095][ T4331] tomoyo_supervisor+0x700/0x888 [ 405.024361][ T4331] tomoyo_path_number_perm+0x200/0x2a8 [ 405.025770][ T4331] tomoyo_file_ioctl+0x2c/0x3c [ 405.027007][ T4331] security_file_ioctl+0x4c/0x8c [ 405.028274][ T4331] __arm64_sys_ioctl+0x5c/0x148 [ 405.029529][ T4331] invoke_syscall+0x64/0x178 [ 405.030720][ T4331] el0_svc_common+0xb8/0x174 [ 405.031911][ T4331] do_el0_svc+0x48/0x174 [ 405.033016][ T4331] el0_svc+0x34/0x110 [ 405.033987][ T4331] el0t_64_sync_handler+0x84/0xf0 [ 405.035291][ T4331] el0t_64_sync+0x18c/0x190 [ 405.161809][ T4331] block nbd0: shutting down sockets [ 405.232451][ T4333] FAULT_INJECTION: forcing a failure. [ 405.232451][ T4333] name failslab, interval 1, probability 0, space 0, times 0 [ 405.235742][ T4333] CPU: 0 PID: 4333 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 405.237848][ T4333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 405.240501][ T4333] Call trace: [ 405.241310][ T4333] dump_backtrace+0x1c8/0x1f4 [ 405.242486][ T4333] show_stack+0x2c/0x3c [ 405.243538][ T4333] dump_stack_lvl+0xc0/0x104 [ 405.244764][ T4333] dump_stack+0x1c/0x4c [ 405.245787][ T4333] should_fail_ex+0x1bc/0x1e0 [ 405.246996][ T4333] __should_failslab+0x64/0x78 [ 405.248209][ T4333] should_failslab+0x10/0x28 [ 405.249380][ T4333] __kmem_cache_alloc_node+0x6c/0x348 [ 405.250769][ T4333] __kmalloc+0x98/0xd8 [ 405.251774][ T4333] tomoyo_supervisor+0x700/0x888 [ 405.253021][ T4333] tomoyo_path_number_perm+0x200/0x2a8 [ 405.254424][ T4333] tomoyo_file_ioctl+0x2c/0x3c [ 405.255629][ T4333] security_file_ioctl+0x4c/0x8c [ 405.256920][ T4333] __arm64_sys_ioctl+0x5c/0x148 [ 405.258155][ T4333] invoke_syscall+0x64/0x178 [ 405.259341][ T4333] el0_svc_common+0xb8/0x174 [ 405.260565][ T4333] do_el0_svc+0x48/0x174 [ 405.261668][ T4333] el0_svc+0x34/0x110 [ 405.262699][ T4333] el0t_64_sync_handler+0x84/0xf0 [ 405.263991][ T4333] el0t_64_sync+0x18c/0x190 [ 405.390218][ T4333] block nbd0: shutting down sockets [ 405.493613][ T4336] FAULT_INJECTION: forcing a failure. [ 405.493613][ T4336] name failslab, interval 1, probability 0, space 0, times 0 [ 405.496900][ T4336] CPU: 0 PID: 4336 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 405.499125][ T4336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 405.501756][ T4336] Call trace: [ 405.502592][ T4336] dump_backtrace+0x1c8/0x1f4 [ 405.503767][ T4336] show_stack+0x2c/0x3c [ 405.504865][ T4336] dump_stack_lvl+0xc0/0x104 [ 405.506044][ T4336] dump_stack+0x1c/0x4c [ 405.507092][ T4336] should_fail_ex+0x1bc/0x1e0 [ 405.508379][ T4336] __should_failslab+0x64/0x78 [ 405.509655][ T4336] should_failslab+0x10/0x28 [ 405.510824][ T4336] __kmem_cache_alloc_node+0x6c/0x348 [ 405.512155][ T4336] __kmalloc+0x98/0xd8 [ 405.513195][ T4336] tomoyo_supervisor+0x700/0x888 [ 405.514408][ T4336] tomoyo_path_number_perm+0x200/0x2a8 [ 405.515772][ T4336] tomoyo_file_ioctl+0x2c/0x3c [ 405.516958][ T4336] security_file_ioctl+0x4c/0x8c [ 405.518177][ T4336] __arm64_sys_ioctl+0x5c/0x148 [ 405.519451][ T4336] invoke_syscall+0x64/0x178 [ 405.520581][ T4336] el0_svc_common+0xb8/0x174 [ 405.521791][ T4336] do_el0_svc+0x48/0x174 [ 405.522888][ T4336] el0_svc+0x34/0x110 [ 405.523937][ T4336] el0t_64_sync_handler+0x84/0xf0 [ 405.525232][ T4336] el0t_64_sync+0x18c/0x190 [ 405.651598][ T4336] block nbd0: shutting down sockets [ 405.762383][ T4338] FAULT_INJECTION: forcing a failure. [ 405.762383][ T4338] name failslab, interval 1, probability 0, space 0, times 0 [ 405.765692][ T4338] CPU: 0 PID: 4338 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 405.767867][ T4338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 405.770565][ T4338] Call trace: [ 405.771339][ T4338] dump_backtrace+0x1c8/0x1f4 [ 405.772073][ T4339] block nbd0: Device being setup by another task [ 405.772536][ T4338] show_stack+0x2c/0x3c [ 405.775209][ T4338] dump_stack_lvl+0xc0/0x104 [ 405.776429][ T4338] dump_stack+0x1c/0x4c [ 405.777454][ T4338] should_fail_ex+0x1bc/0x1e0 [ 405.778640][ T4338] __should_failslab+0x64/0x78 [ 405.779823][ T4338] should_failslab+0x10/0x28 [ 405.780946][ T4338] __kmem_cache_alloc_node+0x6c/0x348 [ 405.782280][ T4338] __kmalloc+0x98/0xd8 [ 405.783308][ T4338] tomoyo_supervisor+0x700/0x888 [ 405.784515][ T4338] tomoyo_path_number_perm+0x200/0x2a8 [ 405.785930][ T4338] tomoyo_file_ioctl+0x2c/0x3c [ 405.787165][ T4338] security_file_ioctl+0x4c/0x8c [ 405.788375][ T4338] __arm64_sys_ioctl+0x5c/0x148 [ 405.789566][ T4338] invoke_syscall+0x64/0x178 [ 405.790737][ T4338] el0_svc_common+0xb8/0x174 [ 405.791837][ T4338] do_el0_svc+0x48/0x174 [ 405.792903][ T4338] el0_svc+0x34/0x110 [ 405.793898][ T4338] el0t_64_sync_handler+0x84/0xf0 [ 405.795135][ T4338] el0t_64_sync+0x18c/0x190 [ 405.920240][ T4338] block nbd0: shutting down sockets [ 406.030386][ T4341] FAULT_INJECTION: forcing a failure. [ 406.030386][ T4341] name failslab, interval 1, probability 0, space 0, times 0 [ 406.033651][ T4341] CPU: 0 PID: 4341 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 406.033659][ T4342] block nbd0: Device being setup by another task [ 406.035731][ T4341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 406.035738][ T4341] Call trace: [ 406.035740][ T4341] dump_backtrace+0x1c8/0x1f4 [ 406.041740][ T4341] show_stack+0x2c/0x3c [ 406.042774][ T4341] dump_stack_lvl+0xc0/0x104 [ 406.043873][ T4341] dump_stack+0x1c/0x4c [ 406.044957][ T4341] should_fail_ex+0x1bc/0x1e0 [ 406.046131][ T4341] __should_failslab+0x64/0x78 [ 406.047324][ T4341] should_failslab+0x10/0x28 [ 406.048529][ T4341] __kmem_cache_alloc_node+0x6c/0x348 [ 406.049886][ T4341] __kmalloc+0x98/0xd8 [ 406.050880][ T4341] tomoyo_supervisor+0x700/0x888 [ 406.052174][ T4341] tomoyo_path_number_perm+0x200/0x2a8 [ 406.053564][ T4341] tomoyo_file_ioctl+0x2c/0x3c [ 406.054828][ T4341] security_file_ioctl+0x4c/0x8c [ 406.056104][ T4341] __arm64_sys_ioctl+0x5c/0x148 [ 406.057325][ T4341] invoke_syscall+0x64/0x178 [ 406.058499][ T4341] el0_svc_common+0xb8/0x174 [ 406.059623][ T4341] do_el0_svc+0x48/0x174 [ 406.060680][ T4341] el0_svc+0x34/0x110 [ 406.061700][ T4341] el0t_64_sync_handler+0x84/0xf0 [ 406.062944][ T4341] el0t_64_sync+0x18c/0x190 [ 406.188049][ T4341] block nbd0: shutting down sockets [ 406.292412][ T4344] FAULT_INJECTION: forcing a failure. [ 406.292412][ T4344] name failslab, interval 1, probability 0, space 0, times 0 [ 406.295765][ T4344] CPU: 1 PID: 4344 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 406.298015][ T4344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 406.300676][ T4344] Call trace: [ 406.301498][ T4344] dump_backtrace+0x1c8/0x1f4 [ 406.302704][ T4344] show_stack+0x2c/0x3c [ 406.303750][ T4344] dump_stack_lvl+0xc0/0x104 [ 406.304907][ T4344] dump_stack+0x1c/0x4c [ 406.305957][ T4344] should_fail_ex+0x1bc/0x1e0 [ 406.307133][ T4344] __should_failslab+0x64/0x78 [ 406.308305][ T4344] should_failslab+0x10/0x28 [ 406.309595][ T4344] __kmem_cache_alloc_node+0x6c/0x348 [ 406.311022][ T4344] __kmalloc+0x98/0xd8 [ 406.312111][ T4344] tomoyo_supervisor+0x700/0x888 [ 406.313438][ T4344] tomoyo_path_number_perm+0x200/0x2a8 [ 406.314832][ T4344] tomoyo_file_ioctl+0x2c/0x3c [ 406.316079][ T4344] security_file_ioctl+0x4c/0x8c [ 406.317309][ T4344] __arm64_sys_ioctl+0x5c/0x148 [ 406.318535][ T4344] invoke_syscall+0x64/0x178 [ 406.319700][ T4344] el0_svc_common+0xb8/0x174 [ 406.320897][ T4344] do_el0_svc+0x48/0x174 [ 406.321975][ T4344] el0_svc+0x34/0x110 [ 406.323013][ T4344] el0t_64_sync_handler+0x84/0xf0 [ 406.324405][ T4344] el0t_64_sync+0x18c/0x190 [ 406.450024][ T4344] block nbd0: shutting down sockets [ 406.559425][ T4346] FAULT_INJECTION: forcing a failure. [ 406.559425][ T4346] name failslab, interval 1, probability 0, space 0, times 0 [ 406.562939][ T4346] CPU: 0 PID: 4346 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 406.565102][ T4346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 406.567662][ T4346] Call trace: [ 406.568447][ T4346] dump_backtrace+0x1c8/0x1f4 [ 406.569617][ T4346] show_stack+0x2c/0x3c [ 406.570636][ T4346] dump_stack_lvl+0xc0/0x104 [ 406.571793][ T4346] dump_stack+0x1c/0x4c [ 406.572855][ T4346] should_fail_ex+0x1bc/0x1e0 [ 406.574045][ T4346] __should_failslab+0x64/0x78 [ 406.575235][ T4346] should_failslab+0x10/0x28 [ 406.576441][ T4346] __kmem_cache_alloc_node+0x6c/0x348 [ 406.577805][ T4346] __kmalloc+0x98/0xd8 [ 406.578887][ T4346] tomoyo_supervisor+0x700/0x888 [ 406.580137][ T4346] tomoyo_path_number_perm+0x200/0x2a8 [ 406.581578][ T4346] tomoyo_file_ioctl+0x2c/0x3c [ 406.582790][ T4346] security_file_ioctl+0x4c/0x8c [ 406.584073][ T4346] __arm64_sys_ioctl+0x5c/0x148 [ 406.585331][ T4346] invoke_syscall+0x64/0x178 [ 406.586515][ T4346] el0_svc_common+0xb8/0x174 [ 406.587626][ T4346] do_el0_svc+0x48/0x174 [ 406.588704][ T4346] el0_svc+0x34/0x110 [ 406.589713][ T4346] el0t_64_sync_handler+0x84/0xf0 [ 406.591042][ T4346] el0t_64_sync+0x18c/0x190 [ 406.602090][ T4347] block nbd0: Device being setup by another task [ 406.717232][ T4346] block nbd0: shutting down sockets [ 406.812524][ T4349] FAULT_INJECTION: forcing a failure. [ 406.812524][ T4349] name failslab, interval 1, probability 0, space 0, times 0 [ 406.815816][ T4349] CPU: 1 PID: 4349 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 406.817978][ T4349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 406.820617][ T4349] Call trace: [ 406.821433][ T4349] dump_backtrace+0x1c8/0x1f4 [ 406.822652][ T4349] show_stack+0x2c/0x3c [ 406.823732][ T4349] dump_stack_lvl+0xc0/0x104 [ 406.824883][ T4349] dump_stack+0x1c/0x4c [ 406.825972][ T4349] should_fail_ex+0x1bc/0x1e0 [ 406.827260][ T4349] __should_failslab+0x64/0x78 [ 406.828495][ T4349] should_failslab+0x10/0x28 [ 406.829655][ T4349] __kmem_cache_alloc_node+0x6c/0x348 [ 406.831032][ T4349] __kmalloc+0x98/0xd8 [ 406.832029][ T4349] tomoyo_supervisor+0x700/0x888 [ 406.833260][ T4349] tomoyo_path_number_perm+0x200/0x2a8 [ 406.834663][ T4349] tomoyo_file_ioctl+0x2c/0x3c [ 406.835861][ T4349] security_file_ioctl+0x4c/0x8c [ 406.837159][ T4349] __arm64_sys_ioctl+0x5c/0x148 [ 406.838393][ T4349] invoke_syscall+0x64/0x178 [ 406.839574][ T4349] el0_svc_common+0xb8/0x174 [ 406.840795][ T4349] do_el0_svc+0x48/0x174 [ 406.841902][ T4349] el0_svc+0x34/0x110 [ 406.842912][ T4349] el0t_64_sync_handler+0x84/0xf0 [ 406.844202][ T4349] el0t_64_sync+0x18c/0x190 [ 406.970331][ T4349] block nbd0: shutting down sockets [ 407.062420][ T4351] FAULT_INJECTION: forcing a failure. [ 407.062420][ T4351] name failslab, interval 1, probability 0, space 0, times 0 [ 407.065775][ T4351] CPU: 1 PID: 4351 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 407.067954][ T4351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 407.070582][ T4351] Call trace: [ 407.071475][ T4351] dump_backtrace+0x1c8/0x1f4 [ 407.072771][ T4351] show_stack+0x2c/0x3c [ 407.073839][ T4351] dump_stack_lvl+0xc0/0x104 [ 407.075056][ T4351] dump_stack+0x1c/0x4c [ 407.076144][ T4351] should_fail_ex+0x1bc/0x1e0 [ 407.077323][ T4351] __should_failslab+0x64/0x78 [ 407.078539][ T4351] should_failslab+0x10/0x28 [ 407.079737][ T4351] __kmem_cache_alloc_node+0x6c/0x348 [ 407.081168][ T4351] __kmalloc+0x98/0xd8 [ 407.082260][ T4351] tomoyo_supervisor+0x700/0x888 [ 407.083643][ T4351] tomoyo_path_number_perm+0x200/0x2a8 [ 407.085083][ T4351] tomoyo_file_ioctl+0x2c/0x3c [ 407.086340][ T4351] security_file_ioctl+0x4c/0x8c [ 407.087629][ T4351] __arm64_sys_ioctl+0x5c/0x148 [ 407.088908][ T4351] invoke_syscall+0x64/0x178 [ 407.090089][ T4351] el0_svc_common+0xb8/0x174 [ 407.091288][ T4351] do_el0_svc+0x48/0x174 [ 407.092392][ T4351] el0_svc+0x34/0x110 [ 407.093471][ T4351] el0t_64_sync_handler+0x84/0xf0 [ 407.094809][ T4351] el0t_64_sync+0x18c/0x190 [ 407.220829][ T4351] block nbd0: shutting down sockets [ 407.302449][ T4353] FAULT_INJECTION: forcing a failure. [ 407.302449][ T4353] name failslab, interval 1, probability 0, space 0, times 0 [ 407.305709][ T4353] CPU: 1 PID: 4353 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 407.307970][ T4353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 407.310547][ T4353] Call trace: [ 407.311315][ T4353] dump_backtrace+0x1c8/0x1f4 [ 407.312477][ T4353] show_stack+0x2c/0x3c [ 407.313536][ T4353] dump_stack_lvl+0xc0/0x104 [ 407.314747][ T4353] dump_stack+0x1c/0x4c [ 407.315831][ T4353] should_fail_ex+0x1bc/0x1e0 [ 407.316993][ T4353] __should_failslab+0x64/0x78 [ 407.318241][ T4353] should_failslab+0x10/0x28 [ 407.319517][ T4353] __kmem_cache_alloc_node+0x6c/0x348 [ 407.320858][ T4353] __kmalloc+0x98/0xd8 [ 407.321905][ T4353] tomoyo_supervisor+0x700/0x888 [ 407.323166][ T4353] tomoyo_path_number_perm+0x200/0x2a8 [ 407.324578][ T4353] tomoyo_file_ioctl+0x2c/0x3c [ 407.325840][ T4353] security_file_ioctl+0x4c/0x8c [ 407.327157][ T4353] __arm64_sys_ioctl+0x5c/0x148 [ 407.328426][ T4353] invoke_syscall+0x64/0x178 [ 407.329629][ T4353] el0_svc_common+0xb8/0x174 [ 407.330844][ T4353] do_el0_svc+0x48/0x174 [ 407.331956][ T4353] el0_svc+0x34/0x110 [ 407.332964][ T4353] el0t_64_sync_handler+0x84/0xf0 [ 407.334289][ T4353] el0t_64_sync+0x18c/0x190 [ 407.460623][ T4353] block nbd0: shutting down sockets [ 407.552403][ T4355] FAULT_INJECTION: forcing a failure. [ 407.552403][ T4355] name failslab, interval 1, probability 0, space 0, times 0 [ 407.555889][ T4355] CPU: 1 PID: 4355 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 407.558089][ T4355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 407.560699][ T4355] Call trace: [ 407.561522][ T4355] dump_backtrace+0x1c8/0x1f4 [ 407.562767][ T4355] show_stack+0x2c/0x3c [ 407.563844][ T4355] dump_stack_lvl+0xc0/0x104 [ 407.565031][ T4355] dump_stack+0x1c/0x4c [ 407.566126][ T4355] should_fail_ex+0x1bc/0x1e0 [ 407.567322][ T4355] __should_failslab+0x64/0x78 [ 407.568581][ T4355] should_failslab+0x10/0x28 [ 407.569724][ T4355] __kmem_cache_alloc_node+0x6c/0x348 [ 407.571157][ T4355] __kmalloc+0x98/0xd8 [ 407.572211][ T4355] tomoyo_supervisor+0x700/0x888 [ 407.573459][ T4355] tomoyo_path_number_perm+0x200/0x2a8 [ 407.574877][ T4355] tomoyo_file_ioctl+0x2c/0x3c [ 407.576110][ T4355] security_file_ioctl+0x4c/0x8c [ 407.577445][ T4355] __arm64_sys_ioctl+0x5c/0x148 [ 407.578684][ T4355] invoke_syscall+0x64/0x178 [ 407.579905][ T4355] el0_svc_common+0xb8/0x174 [ 407.581071][ T4355] do_el0_svc+0x48/0x174 [ 407.582178][ T4355] el0_svc+0x34/0x110 [ 407.583151][ T4355] el0t_64_sync_handler+0x84/0xf0 [ 407.584401][ T4355] el0t_64_sync+0x18c/0x190 [ 407.710563][ T4355] block nbd0: shutting down sockets [ 407.821410][ T4357] FAULT_INJECTION: forcing a failure. [ 407.821410][ T4357] name failslab, interval 1, probability 0, space 0, times 0 [ 407.824872][ T4357] CPU: 0 PID: 4357 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 407.826953][ T4357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 407.829489][ T4357] Call trace: [ 407.830302][ T4357] dump_backtrace+0x1c8/0x1f4 [ 407.831481][ T4357] show_stack+0x2c/0x3c [ 407.832528][ T4357] dump_stack_lvl+0xc0/0x104 [ 407.833717][ T4357] dump_stack+0x1c/0x4c [ 407.834775][ T4357] should_fail_ex+0x1bc/0x1e0 [ 407.835997][ T4357] __should_failslab+0x64/0x78 [ 407.837219][ T4357] should_failslab+0x10/0x28 [ 407.838425][ T4357] __kmem_cache_alloc_node+0x6c/0x348 [ 407.839834][ T4357] __kmalloc+0x98/0xd8 [ 407.840863][ T4357] tomoyo_supervisor+0x700/0x888 [ 407.842177][ T4357] tomoyo_path_number_perm+0x200/0x2a8 [ 407.843613][ T4357] tomoyo_file_ioctl+0x2c/0x3c [ 407.845011][ T4357] security_file_ioctl+0x4c/0x8c [ 407.846377][ T4357] __arm64_sys_ioctl+0x5c/0x148 [ 407.847655][ T4357] invoke_syscall+0x64/0x178 [ 407.848891][ T4357] el0_svc_common+0xb8/0x174 [ 407.850095][ T4357] do_el0_svc+0x48/0x174 [ 407.851202][ T4357] el0_svc+0x34/0x110 [ 407.852239][ T4357] el0t_64_sync_handler+0x84/0xf0 [ 407.853533][ T4357] el0t_64_sync+0x18c/0x190 [ 407.862096][ T4358] block nbd0: Device being setup by another task [ 407.979090][ T4357] block nbd0: shutting down sockets [ 408.072407][ T4360] FAULT_INJECTION: forcing a failure. [ 408.072407][ T4360] name failslab, interval 1, probability 0, space 0, times 0 [ 408.075618][ T4360] CPU: 1 PID: 4360 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 408.077825][ T4360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 408.080401][ T4360] Call trace: [ 408.081184][ T4360] dump_backtrace+0x1c8/0x1f4 [ 408.082389][ T4360] show_stack+0x2c/0x3c [ 408.083449][ T4360] dump_stack_lvl+0xc0/0x104 [ 408.084709][ T4360] dump_stack+0x1c/0x4c [ 408.085802][ T4360] should_fail_ex+0x1bc/0x1e0 [ 408.087060][ T4360] __should_failslab+0x64/0x78 [ 408.088346][ T4360] should_failslab+0x10/0x28 [ 408.089561][ T4360] __kmem_cache_alloc_node+0x6c/0x348 [ 408.090978][ T4360] __kmalloc+0x98/0xd8 [ 408.092044][ T4360] tomoyo_supervisor+0x700/0x888 [ 408.093287][ T4360] tomoyo_path_number_perm+0x200/0x2a8 [ 408.094635][ T4360] tomoyo_file_ioctl+0x2c/0x3c [ 408.095883][ T4360] security_file_ioctl+0x4c/0x8c [ 408.097171][ T4360] __arm64_sys_ioctl+0x5c/0x148 [ 408.098455][ T4360] invoke_syscall+0x64/0x178 [ 408.099684][ T4360] el0_svc_common+0xb8/0x174 [ 408.100907][ T4360] do_el0_svc+0x48/0x174 [ 408.102028][ T4360] el0_svc+0x34/0x110 [ 408.103113][ T4360] el0t_64_sync_handler+0x84/0xf0 [ 408.104385][ T4360] el0t_64_sync+0x18c/0x190 [ 408.230568][ T4360] block nbd0: shutting down sockets [ 408.322438][ T4362] FAULT_INJECTION: forcing a failure. [ 408.322438][ T4362] name failslab, interval 1, probability 0, space 0, times 0 [ 408.325709][ T4362] CPU: 0 PID: 4362 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 408.327900][ T4362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 408.330586][ T4362] Call trace: [ 408.331450][ T4362] dump_backtrace+0x1c8/0x1f4 [ 408.332684][ T4362] show_stack+0x2c/0x3c [ 408.333750][ T4362] dump_stack_lvl+0xc0/0x104 [ 408.334989][ T4362] dump_stack+0x1c/0x4c [ 408.336065][ T4362] should_fail_ex+0x1bc/0x1e0 [ 408.337284][ T4362] __should_failslab+0x64/0x78 [ 408.338608][ T4362] should_failslab+0x10/0x28 [ 408.339846][ T4362] __kmem_cache_alloc_node+0x6c/0x348 [ 408.341296][ T4362] __kmalloc+0x98/0xd8 [ 408.342427][ T4362] tomoyo_supervisor+0x700/0x888 [ 408.343751][ T4362] tomoyo_path_number_perm+0x200/0x2a8 [ 408.345138][ T4362] tomoyo_file_ioctl+0x2c/0x3c [ 408.346406][ T4362] security_file_ioctl+0x4c/0x8c [ 408.347692][ T4362] __arm64_sys_ioctl+0x5c/0x148 [ 408.349004][ T4362] invoke_syscall+0x64/0x178 [ 408.350198][ T4362] el0_svc_common+0xb8/0x174 [ 408.351434][ T4362] do_el0_svc+0x48/0x174 [ 408.352559][ T4362] el0_svc+0x34/0x110 [ 408.353565][ T4362] el0t_64_sync_handler+0x84/0xf0 [ 408.354939][ T4362] el0t_64_sync+0x18c/0x190 [ 408.480466][ T4362] block nbd0: shutting down sockets [ 408.590523][ T4364] FAULT_INJECTION: forcing a failure. [ 408.590523][ T4364] name failslab, interval 1, probability 0, space 0, times 0 [ 408.593854][ T4364] CPU: 1 PID: 4364 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 408.595912][ T4364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 408.598437][ T4364] Call trace: [ 408.599084][ T4364] dump_backtrace+0x1c8/0x1f4 [ 408.600047][ T4364] show_stack+0x2c/0x3c [ 408.601017][ T4364] dump_stack_lvl+0xc0/0x104 [ 408.602072][ T4365] block nbd0: Device being setup by another task [ 408.602198][ T4364] dump_stack+0x1c/0x4c [ 408.604896][ T4364] should_fail_ex+0x1bc/0x1e0 [ 408.606046][ T4364] __should_failslab+0x64/0x78 [ 408.607305][ T4364] should_failslab+0x10/0x28 [ 408.608459][ T4364] __kmem_cache_alloc_node+0x6c/0x348 [ 408.609830][ T4364] __kmalloc+0x98/0xd8 [ 408.610893][ T4364] tomoyo_supervisor+0x700/0x888 [ 408.612150][ T4364] tomoyo_path_number_perm+0x200/0x2a8 [ 408.613544][ T4364] tomoyo_file_ioctl+0x2c/0x3c [ 408.614743][ T4364] security_file_ioctl+0x4c/0x8c [ 408.615973][ T4364] __arm64_sys_ioctl+0x5c/0x148 [ 408.617228][ T4364] invoke_syscall+0x64/0x178 [ 408.618409][ T4364] el0_svc_common+0xb8/0x174 [ 408.619525][ T4364] do_el0_svc+0x48/0x174 [ 408.620626][ T4364] el0_svc+0x34/0x110 [ 408.621583][ T4364] el0t_64_sync_handler+0x84/0xf0 [ 408.622872][ T4364] el0t_64_sync+0x18c/0x190 [ 408.748217][ T4364] block nbd0: shutting down sockets [ 408.832413][ T4367] FAULT_INJECTION: forcing a failure. [ 408.832413][ T4367] name failslab, interval 1, probability 0, space 0, times 0 [ 408.835832][ T4367] CPU: 1 PID: 4367 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 408.837975][ T4367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 408.840566][ T4367] Call trace: [ 408.841369][ T4367] dump_backtrace+0x1c8/0x1f4 [ 408.842543][ T4367] show_stack+0x2c/0x3c [ 408.843603][ T4367] dump_stack_lvl+0xc0/0x104 [ 408.844811][ T4367] dump_stack+0x1c/0x4c [ 408.845887][ T4367] should_fail_ex+0x1bc/0x1e0 [ 408.847098][ T4367] __should_failslab+0x64/0x78 [ 408.848294][ T4367] should_failslab+0x10/0x28 [ 408.849428][ T4367] __kmem_cache_alloc_node+0x6c/0x348 [ 408.850818][ T4367] __kmalloc+0x98/0xd8 [ 408.851858][ T4367] tomoyo_supervisor+0x700/0x888 [ 408.853124][ T4367] tomoyo_path_number_perm+0x200/0x2a8 [ 408.854586][ T4367] tomoyo_file_ioctl+0x2c/0x3c [ 408.855793][ T4367] security_file_ioctl+0x4c/0x8c [ 408.857057][ T4367] __arm64_sys_ioctl+0x5c/0x148 [ 408.858289][ T4367] invoke_syscall+0x64/0x178 [ 408.859494][ T4367] el0_svc_common+0xb8/0x174 [ 408.860668][ T4367] do_el0_svc+0x48/0x174 [ 408.861772][ T4367] el0_svc+0x34/0x110 [ 408.862774][ T4367] el0t_64_sync_handler+0x84/0xf0 [ 408.864105][ T4367] el0t_64_sync+0x18c/0x190 [ 408.990541][ T4367] block nbd0: shutting down sockets [ 409.062458][ T4369] FAULT_INJECTION: forcing a failure. [ 409.062458][ T4369] name failslab, interval 1, probability 0, space 0, times 0 [ 409.065725][ T4369] CPU: 0 PID: 4369 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 409.067888][ T4369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 409.070455][ T4369] Call trace: [ 409.071277][ T4369] dump_backtrace+0x1c8/0x1f4 [ 409.072468][ T4369] show_stack+0x2c/0x3c [ 409.073505][ T4369] dump_stack_lvl+0xc0/0x104 [ 409.074692][ T4369] dump_stack+0x1c/0x4c [ 409.075746][ T4369] should_fail_ex+0x1bc/0x1e0 [ 409.076927][ T4369] __should_failslab+0x64/0x78 [ 409.078122][ T4369] should_failslab+0x10/0x28 [ 409.079330][ T4369] __kmem_cache_alloc_node+0x6c/0x348 [ 409.080708][ T4369] __kmalloc+0x98/0xd8 [ 409.081720][ T4369] tomoyo_supervisor+0x700/0x888 [ 409.083016][ T4369] tomoyo_path_number_perm+0x200/0x2a8 [ 409.084490][ T4369] tomoyo_file_ioctl+0x2c/0x3c [ 409.085701][ T4369] security_file_ioctl+0x4c/0x8c [ 409.086919][ T4369] __arm64_sys_ioctl+0x5c/0x148 [ 409.088170][ T4369] invoke_syscall+0x64/0x178 [ 409.089294][ T4369] el0_svc_common+0xb8/0x174 [ 409.090483][ T4369] do_el0_svc+0x48/0x174 [ 409.091564][ T4369] el0_svc+0x34/0x110 [ 409.092568][ T4369] el0t_64_sync_handler+0x84/0xf0 [ 409.093895][ T4369] el0t_64_sync+0x18c/0x190 [ 409.220240][ T4369] block nbd0: shutting down sockets [ 409.312423][ T4371] FAULT_INJECTION: forcing a failure. [ 409.312423][ T4371] name failslab, interval 1, probability 0, space 0, times 0 [ 409.315785][ T4371] CPU: 0 PID: 4371 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 409.318064][ T4371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 409.320628][ T4371] Call trace: [ 409.321445][ T4371] dump_backtrace+0x1c8/0x1f4 [ 409.322669][ T4371] show_stack+0x2c/0x3c [ 409.323748][ T4371] dump_stack_lvl+0xc0/0x104 [ 409.324940][ T4371] dump_stack+0x1c/0x4c [ 409.326018][ T4371] should_fail_ex+0x1bc/0x1e0 [ 409.327183][ T4371] __should_failslab+0x64/0x78 [ 409.328380][ T4371] should_failslab+0x10/0x28 [ 409.329545][ T4371] __kmem_cache_alloc_node+0x6c/0x348 [ 409.330944][ T4371] __kmalloc+0x98/0xd8 [ 409.331960][ T4371] tomoyo_supervisor+0x700/0x888 [ 409.333212][ T4371] tomoyo_path_number_perm+0x200/0x2a8 [ 409.334670][ T4371] tomoyo_file_ioctl+0x2c/0x3c [ 409.335889][ T4371] security_file_ioctl+0x4c/0x8c [ 409.337198][ T4371] __arm64_sys_ioctl+0x5c/0x148 [ 409.338478][ T4371] invoke_syscall+0x64/0x178 [ 409.339653][ T4371] el0_svc_common+0xb8/0x174 [ 409.340789][ T4371] do_el0_svc+0x48/0x174 [ 409.341863][ T4371] el0_svc+0x34/0x110 [ 409.342886][ T4371] el0t_64_sync_handler+0x84/0xf0 [ 409.344183][ T4371] el0t_64_sync+0x18c/0x190 [ 409.470427][ T4371] block nbd0: shutting down sockets [ 409.580399][ T4373] FAULT_INJECTION: forcing a failure. [ 409.580399][ T4373] name failslab, interval 1, probability 0, space 0, times 0 [ 409.584004][ T4373] CPU: 1 PID: 4373 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 409.586175][ T4373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 409.588832][ T4373] Call trace: [ 409.589603][ T4373] dump_backtrace+0x1c8/0x1f4 [ 409.590810][ T4373] show_stack+0x2c/0x3c [ 409.591847][ T4373] dump_stack_lvl+0xc0/0x104 [ 409.593048][ T4373] dump_stack+0x1c/0x4c [ 409.594128][ T4373] should_fail_ex+0x1bc/0x1e0 [ 409.595318][ T4373] __should_failslab+0x64/0x78 [ 409.596540][ T4373] should_failslab+0x10/0x28 [ 409.597673][ T4373] __kmem_cache_alloc_node+0x6c/0x348 [ 409.599013][ T4373] __kmalloc+0x98/0xd8 [ 409.600094][ T4373] tomoyo_supervisor+0x700/0x888 [ 409.601417][ T4373] tomoyo_path_number_perm+0x200/0x2a8 [ 409.602861][ T4373] tomoyo_file_ioctl+0x2c/0x3c [ 409.604123][ T4373] security_file_ioctl+0x4c/0x8c [ 409.605407][ T4373] __arm64_sys_ioctl+0x5c/0x148 [ 409.606610][ T4373] invoke_syscall+0x64/0x178 [ 409.607795][ T4373] el0_svc_common+0xb8/0x174 [ 409.608950][ T4373] do_el0_svc+0x48/0x174 [ 409.610034][ T4373] el0_svc+0x34/0x110 [ 409.611063][ T4373] el0t_64_sync_handler+0x84/0xf0 [ 409.612387][ T4373] el0t_64_sync+0x18c/0x190 [ 409.622089][ T4374] block nbd0: Device being setup by another task [ 409.738336][ T4373] block nbd0: shutting down sockets [ 409.832450][ T4376] FAULT_INJECTION: forcing a failure. [ 409.832450][ T4376] name failslab, interval 1, probability 0, space 0, times 0 [ 409.835760][ T4376] CPU: 1 PID: 4376 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 409.837914][ T4376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 409.840597][ T4376] Call trace: [ 409.841409][ T4376] dump_backtrace+0x1c8/0x1f4 [ 409.842652][ T4376] show_stack+0x2c/0x3c [ 409.843787][ T4376] dump_stack_lvl+0xc0/0x104 [ 409.845029][ T4376] dump_stack+0x1c/0x4c [ 409.846078][ T4376] should_fail_ex+0x1bc/0x1e0 [ 409.847274][ T4376] __should_failslab+0x64/0x78 [ 409.848488][ T4376] should_failslab+0x10/0x28 [ 409.849642][ T4376] __kmem_cache_alloc_node+0x6c/0x348 [ 409.850970][ T4376] __kmalloc+0x98/0xd8 [ 409.852017][ T4376] tomoyo_supervisor+0x700/0x888 [ 409.853302][ T4376] tomoyo_path_number_perm+0x200/0x2a8 [ 409.854735][ T4376] tomoyo_file_ioctl+0x2c/0x3c [ 409.855943][ T4376] security_file_ioctl+0x4c/0x8c [ 409.857365][ T4376] __arm64_sys_ioctl+0x5c/0x148 [ 409.858575][ T4376] invoke_syscall+0x64/0x178 [ 409.859764][ T4376] el0_svc_common+0xb8/0x174 [ 409.860975][ T4376] do_el0_svc+0x48/0x174 [ 409.862037][ T4376] el0_svc+0x34/0x110 [ 409.863035][ T4376] el0t_64_sync_handler+0x84/0xf0 [ 409.864347][ T4376] el0t_64_sync+0x18c/0x190 [ 409.990412][ T4376] block nbd0: shutting down sockets [ 410.072451][ T4378] FAULT_INJECTION: forcing a failure. [ 410.072451][ T4378] name failslab, interval 1, probability 0, space 0, times 0 [ 410.075824][ T4378] CPU: 1 PID: 4378 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 410.077906][ T4378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 410.080579][ T4378] Call trace: [ 410.081397][ T4378] dump_backtrace+0x1c8/0x1f4 [ 410.082595][ T4378] show_stack+0x2c/0x3c [ 410.083664][ T4378] dump_stack_lvl+0xc0/0x104 [ 410.084849][ T4378] dump_stack+0x1c/0x4c [ 410.085857][ T4378] should_fail_ex+0x1bc/0x1e0 [ 410.087073][ T4378] __should_failslab+0x64/0x78 [ 410.088321][ T4378] should_failslab+0x10/0x28 [ 410.089530][ T4378] __kmem_cache_alloc_node+0x6c/0x348 [ 410.090900][ T4378] __kmalloc+0x98/0xd8 [ 410.091941][ T4378] tomoyo_supervisor+0x700/0x888 [ 410.093254][ T4378] tomoyo_path_number_perm+0x200/0x2a8 [ 410.094631][ T4378] tomoyo_file_ioctl+0x2c/0x3c [ 410.095838][ T4378] security_file_ioctl+0x4c/0x8c [ 410.097069][ T4378] __arm64_sys_ioctl+0x5c/0x148 [ 410.098376][ T4378] invoke_syscall+0x64/0x178 [ 410.099558][ T4378] el0_svc_common+0xb8/0x174 [ 410.100747][ T4378] do_el0_svc+0x48/0x174 [ 410.101855][ T4378] el0_svc+0x34/0x110 [ 410.102951][ T4378] el0t_64_sync_handler+0x84/0xf0 [ 410.104246][ T4378] el0t_64_sync+0x18c/0x190 [ 410.230330][ T4378] block nbd0: shutting down sockets [ 410.312472][ T4380] FAULT_INJECTION: forcing a failure. [ 410.312472][ T4380] name failslab, interval 1, probability 0, space 0, times 0 [ 410.315684][ T4380] CPU: 1 PID: 4380 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 410.317809][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 410.320382][ T4380] Call trace: [ 410.321318][ T4380] dump_backtrace+0x1c8/0x1f4 [ 410.322477][ T4380] show_stack+0x2c/0x3c [ 410.323546][ T4380] dump_stack_lvl+0xc0/0x104 [ 410.324738][ T4380] dump_stack+0x1c/0x4c [ 410.325756][ T4380] should_fail_ex+0x1bc/0x1e0 [ 410.326980][ T4380] __should_failslab+0x64/0x78 [ 410.328164][ T4380] should_failslab+0x10/0x28 [ 410.329368][ T4380] __kmem_cache_alloc_node+0x6c/0x348 [ 410.330725][ T4380] __kmalloc+0x98/0xd8 [ 410.331788][ T4380] tomoyo_supervisor+0x700/0x888 [ 410.333051][ T4380] tomoyo_path_number_perm+0x200/0x2a8 [ 410.334456][ T4380] tomoyo_file_ioctl+0x2c/0x3c [ 410.335639][ T4380] security_file_ioctl+0x4c/0x8c [ 410.336950][ T4380] __arm64_sys_ioctl+0x5c/0x148 [ 410.338181][ T4380] invoke_syscall+0x64/0x178 [ 410.339375][ T4380] el0_svc_common+0xb8/0x174 [ 410.340478][ T4380] do_el0_svc+0x48/0x174 [ 410.341553][ T4380] el0_svc+0x34/0x110 [ 410.342594][ T4380] el0t_64_sync_handler+0x84/0xf0 [ 410.343886][ T4380] el0t_64_sync+0x18c/0x190 [ 410.470234][ T4380] block nbd0: shutting down sockets [ 410.552379][ T4382] FAULT_INJECTION: forcing a failure. [ 410.552379][ T4382] name failslab, interval 1, probability 0, space 0, times 0 [ 410.555553][ T4382] CPU: 1 PID: 4382 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 410.557720][ T4382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 410.560224][ T4382] Call trace: [ 410.561007][ T4382] dump_backtrace+0x1c8/0x1f4 [ 410.562182][ T4382] show_stack+0x2c/0x3c [ 410.563278][ T4382] dump_stack_lvl+0xc0/0x104 [ 410.564462][ T4382] dump_stack+0x1c/0x4c [ 410.565554][ T4382] should_fail_ex+0x1bc/0x1e0 [ 410.566755][ T4382] __should_failslab+0x64/0x78 [ 410.568000][ T4382] should_failslab+0x10/0x28 [ 410.569162][ T4382] slab_pre_alloc_hook+0x54/0x1f4 [ 410.570453][ T4382] kmem_cache_alloc_lru+0x60/0x2ac [ 410.571796][ T4382] alloc_inode+0x7c/0x104 [ 410.572921][ T4382] new_inode+0x2c/0xc0 [ 410.573986][ T4382] debugfs_create_dir+0x98/0x1e0 [ 410.575245][ T4382] nbd_start_device+0x1b4/0x510 [ 410.576526][ T4382] nbd_ioctl+0x228/0x66c [ 410.577589][ T4382] blkdev_ioctl+0x218/0x664 [ 410.578745][ T4382] __arm64_sys_ioctl+0xd0/0x148 [ 410.579989][ T4382] invoke_syscall+0x64/0x178 [ 410.581274][ T4382] el0_svc_common+0xb8/0x174 [ 410.582462][ T4382] do_el0_svc+0x48/0x174 [ 410.583556][ T4382] el0_svc+0x34/0x110 [ 410.584592][ T4382] el0t_64_sync_handler+0x84/0xf0 [ 410.585886][ T4382] el0t_64_sync+0x18c/0x190 [ 410.587056][ T4382] debugfs: out of free dentries, can not create directory 'nbd0' [ 410.589003][ T4382] block nbd0: Failed to create debugfs dir for 'nbd0' [ 410.710478][ T4382] block nbd0: shutting down sockets [ 410.792337][ T4384] FAULT_INJECTION: forcing a failure. [ 410.792337][ T4384] name failslab, interval 1, probability 0, space 0, times 0 [ 410.795580][ T4384] CPU: 1 PID: 4384 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 410.797682][ T4384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 410.800277][ T4384] Call trace: [ 410.801137][ T4384] dump_backtrace+0x1c8/0x1f4 [ 410.802312][ T4384] show_stack+0x2c/0x3c [ 410.803436][ T4384] dump_stack_lvl+0xc0/0x104 [ 410.804618][ T4384] dump_stack+0x1c/0x4c [ 410.805724][ T4384] should_fail_ex+0x1bc/0x1e0 [ 410.806882][ T4384] __should_failslab+0x64/0x78 [ 410.808068][ T4384] should_failslab+0x10/0x28 [ 410.809199][ T4384] slab_pre_alloc_hook+0x54/0x1f4 [ 410.810506][ T4384] kmem_cache_alloc_lru+0x60/0x2ac [ 410.811807][ T4384] alloc_inode+0x7c/0x104 [ 410.812947][ T4384] new_inode+0x2c/0xc0 [ 410.813953][ T4384] debugfs_create_dir+0x98/0x1e0 [ 410.815241][ T4384] nbd_start_device+0x1b4/0x510 [ 410.816508][ T4384] nbd_ioctl+0x228/0x66c [ 410.817578][ T4384] blkdev_ioctl+0x218/0x664 [ 410.818702][ T4384] __arm64_sys_ioctl+0xd0/0x148 [ 410.819950][ T4384] invoke_syscall+0x64/0x178 [ 410.821154][ T4384] el0_svc_common+0xb8/0x174 [ 410.822392][ T4384] do_el0_svc+0x48/0x174 [ 410.823481][ T4384] el0_svc+0x34/0x110 [ 410.824521][ T4384] el0t_64_sync_handler+0x84/0xf0 [ 410.825787][ T4384] el0t_64_sync+0x18c/0x190 [ 410.826945][ T4384] debugfs: out of free dentries, can not create directory 'nbd0' [ 410.828927][ T4384] block nbd0: Failed to create debugfs dir for 'nbd0' [ 410.950300][ T4384] block nbd0: shutting down sockets [ 411.032320][ T4386] FAULT_INJECTION: forcing a failure. [ 411.032320][ T4386] name failslab, interval 1, probability 0, space 0, times 0 [ 411.035663][ T4386] CPU: 1 PID: 4386 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 411.037838][ T4386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 411.040545][ T4386] Call trace: [ 411.041395][ T4386] dump_backtrace+0x1c8/0x1f4 [ 411.042582][ T4386] show_stack+0x2c/0x3c [ 411.043633][ T4386] dump_stack_lvl+0xc0/0x104 [ 411.044854][ T4386] dump_stack+0x1c/0x4c [ 411.046022][ T4386] should_fail_ex+0x1bc/0x1e0 [ 411.047221][ T4386] __should_failslab+0x64/0x78 [ 411.048456][ T4386] should_failslab+0x10/0x28 [ 411.049680][ T4386] slab_pre_alloc_hook+0x54/0x1f4 [ 411.051041][ T4386] kmem_cache_alloc_lru+0x60/0x2ac [ 411.052339][ T4386] alloc_inode+0x7c/0x104 [ 411.053421][ T4386] new_inode+0x2c/0xc0 [ 411.054490][ T4386] debugfs_create_dir+0x98/0x1e0 [ 411.055765][ T4386] nbd_start_device+0x1b4/0x510 [ 411.057020][ T4386] nbd_ioctl+0x228/0x66c [ 411.058109][ T4386] blkdev_ioctl+0x218/0x664 [ 411.059236][ T4386] __arm64_sys_ioctl+0xd0/0x148 [ 411.060559][ T4386] invoke_syscall+0x64/0x178 [ 411.061756][ T4386] el0_svc_common+0xb8/0x174 [ 411.062932][ T4386] do_el0_svc+0x48/0x174 [ 411.064071][ T4386] el0_svc+0x34/0x110 [ 411.065135][ T4386] el0t_64_sync_handler+0x84/0xf0 [ 411.066474][ T4386] el0t_64_sync+0x18c/0x190 [ 411.067766][ T4386] debugfs: out of free dentries, can not create directory 'nbd0' [ 411.069726][ T4386] block nbd0: Failed to create debugfs dir for 'nbd0' [ 411.190119][ T4386] block nbd0: shutting down sockets [ 411.272420][ T4388] FAULT_INJECTION: forcing a failure. [ 411.272420][ T4388] name failslab, interval 1, probability 0, space 0, times 0 [ 411.275644][ T4388] CPU: 1 PID: 4388 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 411.277751][ T4388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 411.280302][ T4388] Call trace: [ 411.281148][ T4388] dump_backtrace+0x1c8/0x1f4 [ 411.282308][ T4388] show_stack+0x2c/0x3c [ 411.283406][ T4388] dump_stack_lvl+0xc0/0x104 [ 411.284584][ T4388] dump_stack+0x1c/0x4c [ 411.285629][ T4388] should_fail_ex+0x1bc/0x1e0 [ 411.286852][ T4388] __should_failslab+0x64/0x78 [ 411.288119][ T4388] should_failslab+0x10/0x28 [ 411.289363][ T4388] slab_pre_alloc_hook+0x54/0x1f4 [ 411.290782][ T4388] kmem_cache_alloc_lru+0x60/0x2ac [ 411.292117][ T4388] alloc_inode+0x7c/0x104 [ 411.293276][ T4388] new_inode+0x2c/0xc0 [ 411.294299][ T4388] debugfs_create_dir+0x98/0x1e0 [ 411.295640][ T4388] nbd_start_device+0x1b4/0x510 [ 411.296900][ T4388] nbd_ioctl+0x228/0x66c [ 411.298030][ T4388] blkdev_ioctl+0x218/0x664 [ 411.299135][ T4388] __arm64_sys_ioctl+0xd0/0x148 [ 411.300391][ T4388] invoke_syscall+0x64/0x178 [ 411.301621][ T4388] el0_svc_common+0xb8/0x174 [ 411.302832][ T4388] do_el0_svc+0x48/0x174 [ 411.303917][ T4388] el0_svc+0x34/0x110 [ 411.304939][ T4388] el0t_64_sync_handler+0x84/0xf0 [ 411.306241][ T4388] el0t_64_sync+0x18c/0x190 [ 411.307432][ T4388] debugfs: out of free dentries, can not create directory 'nbd0' [ 411.309557][ T4388] block nbd0: Failed to create debugfs dir for 'nbd0' [ 411.430292][ T4388] block nbd0: shutting down sockets [ 411.532328][ T4390] FAULT_INJECTION: forcing a failure. [ 411.532328][ T4390] name failslab, interval 1, probability 0, space 0, times 0 [ 411.535563][ T4390] CPU: 1 PID: 4390 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 411.537731][ T4390] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 411.540331][ T4390] Call trace: [ 411.541117][ T4390] dump_backtrace+0x1c8/0x1f4 [ 411.542308][ T4390] show_stack+0x2c/0x3c [ 411.543343][ T4390] dump_stack_lvl+0xc0/0x104 [ 411.544583][ T4390] dump_stack+0x1c/0x4c [ 411.545677][ T4390] should_fail_ex+0x1bc/0x1e0 [ 411.546809][ T4390] __should_failslab+0x64/0x78 [ 411.547971][ T4390] should_failslab+0x10/0x28 [ 411.549236][ T4390] slab_pre_alloc_hook+0x54/0x1f4 [ 411.550622][ T4390] kmem_cache_alloc_lru+0x60/0x2ac [ 411.552013][ T4390] alloc_inode+0x7c/0x104 [ 411.553164][ T4390] new_inode+0x2c/0xc0 [ 411.554195][ T4390] debugfs_create_dir+0x98/0x1e0 [ 411.555483][ T4390] nbd_start_device+0x1b4/0x510 [ 411.556752][ T4390] nbd_ioctl+0x228/0x66c [ 411.557837][ T4390] blkdev_ioctl+0x218/0x664 [ 411.558953][ T4390] __arm64_sys_ioctl+0xd0/0x148 [ 411.560229][ T4390] invoke_syscall+0x64/0x178 [ 411.561423][ T4390] el0_svc_common+0xb8/0x174 [ 411.562607][ T4390] do_el0_svc+0x48/0x174 [ 411.563696][ T4390] el0_svc+0x34/0x110 [ 411.564709][ T4390] el0t_64_sync_handler+0x84/0xf0 [ 411.566046][ T4390] el0t_64_sync+0x18c/0x190 [ 411.567217][ T4390] debugfs: out of free dentries, can not create directory 'nbd0' [ 411.569221][ T4390] block nbd0: Failed to create debugfs dir for 'nbd0' [ 411.690221][ T4390] block nbd0: shutting down sockets [ 411.832110][ T4393] block nbd0: Device being setup by another task [ 411.863857][ T4392] FAULT_INJECTION: forcing a failure. [ 411.863857][ T4392] name failslab, interval 1, probability 0, space 0, times 0 [ 411.867365][ T4392] CPU: 1 PID: 4392 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 411.869534][ T4392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 411.872130][ T4392] Call trace: [ 411.872962][ T4392] dump_backtrace+0x1c8/0x1f4 [ 411.874158][ T4392] show_stack+0x2c/0x3c [ 411.875260][ T4392] dump_stack_lvl+0xc0/0x104 [ 411.876475][ T4392] dump_stack+0x1c/0x4c [ 411.877526][ T4392] should_fail_ex+0x1bc/0x1e0 [ 411.878824][ T4392] __should_failslab+0x64/0x78 [ 411.880045][ T4392] should_failslab+0x10/0x28 [ 411.881223][ T4392] __kmem_cache_alloc_node+0x6c/0x348 [ 411.882628][ T4392] __kmalloc_node_track_caller+0x84/0xc0 [ 411.884133][ T4392] kstrdup_const+0x90/0xdc [ 411.885260][ T4392] __kernfs_new_node+0x5c/0x2e8 [ 411.886476][ T4392] kernfs_create_dir_ns+0xac/0x188 [ 411.887771][ T4392] sysfs_create_dir_ns+0x8c/0x168 [ 411.889083][ T4392] kobject_add_internal+0x314/0x64c [ 411.890483][ T4392] kobject_add+0xb8/0x130 [ 411.891615][ T4392] blk_mq_register_hctx+0x54/0x184 [ 411.892940][ T4392] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 411.894386][ T4392] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 411.895842][ T4392] nbd_start_device+0xc4/0x510 [ 411.897062][ T4392] nbd_ioctl+0x228/0x66c [ 411.898160][ T4392] blkdev_ioctl+0x218/0x664 [ 411.899287][ T4392] __arm64_sys_ioctl+0xd0/0x148 [ 411.900523][ T4392] invoke_syscall+0x64/0x178 [ 411.901707][ T4392] el0_svc_common+0xb8/0x174 [ 411.902915][ T4392] do_el0_svc+0x48/0x174 [ 411.904047][ T4392] el0_svc+0x34/0x110 [ 411.905086][ T4392] el0t_64_sync_handler+0x84/0xf0 [ 411.906369][ T4392] el0t_64_sync+0x18c/0x190 [ 411.907658][ T4392] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 411.960847][ T4392] block nbd0: shutting down sockets [ 412.113335][ T4396] ------------[ cut here ]------------ [ 412.114821][ T4396] kernfs: can not remove 'nr_tags', no directory [ 412.116544][ T4396] WARNING: CPU: 0 PID: 4396 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 412.118985][ T4396] Modules linked in: [ 412.119984][ T4396] CPU: 0 PID: 4396 Comm: syz-executor199 Not tainted 6.1.88-syzkaller #0 [ 412.122173][ T4396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.124751][ T4396] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 412.126787][ T4396] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 412.128315][ T4396] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 412.129880][ T4396] sp : ffff80000dee3ac0 [ 412.130970][ T4396] x29: ffff80000dee3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 412.133038][ T4396] x26: ffff0000c5891108 x25: ffff80000dee3be8 x24: ffff0000c749b380 [ 412.135107][ T4396] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 412.137119][ T4396] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 412.139227][ T4396] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 412.141290][ T4396] x14: 0000000000000000 x13: 205d363933345420 x12: ffff80000d194000 [ 412.143368][ T4396] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 7304c6f640b50d00 [ 412.145421][ T4396] x8 : 7304c6f640b50d00 x7 : 0000000000000000 x6 : ffff80000ae14b50 [ 412.147533][ T4396] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9dcea8 [ 412.149548][ T4396] x2 : ffff0001fe9dcea8 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 412.151647][ T4396] Call trace: [ 412.152480][ T4396] kernfs_remove_by_name_ns+0xb4/0x110 [ 412.153893][ T4396] sysfs_remove_group+0x68/0x160 [ 412.155169][ T4396] sysfs_remove_groups+0x3c/0x78 [ 412.156447][ T4396] __kobject_del+0x34/0x134 [ 412.157605][ T4396] kobject_del+0x2c/0x4c [ 412.158703][ T4396] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 412.160259][ T4396] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 412.161747][ T4396] nbd_start_device+0xc4/0x510 [ 412.163007][ T4396] nbd_ioctl+0x228/0x66c [ 412.164084][ T4396] blkdev_ioctl+0x218/0x664 [ 412.165307][ T4396] __arm64_sys_ioctl+0xd0/0x148 [ 412.166558][ T4396] invoke_syscall+0x64/0x178 [ 412.167744][ T4396] el0_svc_common+0xb8/0x174 [ 412.168930][ T4396] do_el0_svc+0x48/0x174 [ 412.169998][ T4396] el0_svc+0x34/0x110 [ 412.171046][ T4396] el0t_64_sync_handler+0x84/0xf0 [ 412.172319][ T4396] el0t_64_sync+0x18c/0x190 [ 412.173474][ T4396] ---[ end trace 0000000000000000 ]--- [ 412.174981][ T4396] ------------[ cut here ]------------ [ 412.176399][ T4396] kernfs: can not remove 'nr_reserved_tags', no directory [ 412.178272][ T4396] WARNING: CPU: 0 PID: 4396 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 412.180739][ T4396] Modules linked in: [ 412.181732][ T4396] CPU: 0 PID: 4396 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 412.184202][ T4396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.186836][ T4396] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 412.188901][ T4396] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 412.190462][ T4396] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 412.191926][ T4396] sp : ffff80000dee3ac0 [ 412.192972][ T4396] x29: ffff80000dee3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 412.195062][ T4396] x26: ffff0000c5891108 x25: ffff80000dee3be8 x24: ffff0000c749b380 [ 412.197126][ T4396] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 412.199193][ T4396] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 412.201304][ T4396] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 412.203438][ T4396] x14: 0000000000000000 x13: 205d363933345420 x12: ffff80000d194000 [ 412.205509][ T4396] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 7304c6f640b50d00 [ 412.207615][ T4396] x8 : 7304c6f640b50d00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 412.209668][ T4396] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 412.211747][ T4396] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 412.213738][ T4396] Call trace: [ 412.214603][ T4396] kernfs_remove_by_name_ns+0xb4/0x110 [ 412.215997][ T4396] sysfs_remove_group+0x68/0x160 [ 412.217285][ T4396] sysfs_remove_groups+0x3c/0x78 [ 412.218576][ T4396] __kobject_del+0x34/0x134 [ 412.219723][ T4396] kobject_del+0x2c/0x4c [ 412.220897][ T4396] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 412.222413][ T4396] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 412.223957][ T4396] nbd_start_device+0xc4/0x510 [ 412.225150][ T4396] nbd_ioctl+0x228/0x66c [ 412.226233][ T4396] blkdev_ioctl+0x218/0x664 [ 412.227398][ T4396] __arm64_sys_ioctl+0xd0/0x148 [ 412.228704][ T4396] invoke_syscall+0x64/0x178 [ 412.229902][ T4396] el0_svc_common+0xb8/0x174 [ 412.231135][ T4396] do_el0_svc+0x48/0x174 [ 412.232238][ T4396] el0_svc+0x34/0x110 [ 412.233330][ T4396] el0t_64_sync_handler+0x84/0xf0 [ 412.234639][ T4396] el0t_64_sync+0x18c/0x190 [ 412.235853][ T4396] ---[ end trace 0000000000000000 ]--- [ 412.237312][ T4396] ------------[ cut here ]------------ [ 412.238706][ T4396] kernfs: can not remove 'cpu_list', no directory [ 412.240394][ T4396] WARNING: CPU: 0 PID: 4396 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 412.242951][ T4396] Modules linked in: [ 412.243955][ T4396] CPU: 0 PID: 4396 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 412.246515][ T4396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.249171][ T4396] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 412.251286][ T4396] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 412.252803][ T4396] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 412.254280][ T4396] sp : ffff80000dee3ac0 [ 412.255396][ T4396] x29: ffff80000dee3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 412.257516][ T4396] x26: ffff0000c5891108 x25: ffff80000dee3be8 x24: ffff0000c749b380 [ 412.259615][ T4396] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 412.261772][ T4396] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 412.263925][ T4396] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 412.265987][ T4396] x14: 0000000000000000 x13: 205d363933345420 x12: ffff80000d194000 [ 412.268095][ T4396] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 7304c6f640b50d00 [ 412.270114][ T4396] x8 : 7304c6f640b50d00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 412.272260][ T4396] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 412.274326][ T4396] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 412.276413][ T4396] Call trace: [ 412.277271][ T4396] kernfs_remove_by_name_ns+0xb4/0x110 [ 412.278775][ T4396] sysfs_remove_group+0x68/0x160 [ 412.280075][ T4396] sysfs_remove_groups+0x3c/0x78 [ 412.281346][ T4396] __kobject_del+0x34/0x134 [ 412.282541][ T4396] kobject_del+0x2c/0x4c [ 412.283665][ T4396] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 412.285178][ T4396] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 412.286734][ T4396] nbd_start_device+0xc4/0x510 [ 412.287962][ T4396] nbd_ioctl+0x228/0x66c [ 412.289074][ T4396] blkdev_ioctl+0x218/0x664 [ 412.290179][ T4396] __arm64_sys_ioctl+0xd0/0x148 [ 412.291459][ T4396] invoke_syscall+0x64/0x178 [ 412.292634][ T4396] el0_svc_common+0xb8/0x174 [ 412.293812][ T4396] do_el0_svc+0x48/0x174 [ 412.294853][ T4396] el0_svc+0x34/0x110 [ 412.295852][ T4396] el0t_64_sync_handler+0x84/0xf0 [ 412.297133][ T4396] el0t_64_sync+0x18c/0x190 [ 412.298366][ T4396] ---[ end trace 0000000000000000 ]--- [ 412.302257][ T4396] block nbd0: shutting down sockets [ 412.422081][ T4399] block nbd0: Device being setup by another task [ 412.473649][ T4398] FAULT_INJECTION: forcing a failure. [ 412.473649][ T4398] name failslab, interval 1, probability 0, space 0, times 0 [ 412.476977][ T4398] CPU: 0 PID: 4398 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 412.479615][ T4398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.482115][ T4398] Call trace: [ 412.482975][ T4398] dump_backtrace+0x1c8/0x1f4 [ 412.484225][ T4398] show_stack+0x2c/0x3c [ 412.485327][ T4398] dump_stack_lvl+0xc0/0x104 [ 412.486567][ T4398] dump_stack+0x1c/0x4c [ 412.487635][ T4398] should_fail_ex+0x1bc/0x1e0 [ 412.488840][ T4398] __should_failslab+0x64/0x78 [ 412.490081][ T4398] should_failslab+0x10/0x28 [ 412.491229][ T4398] __kmem_cache_alloc_node+0x6c/0x348 [ 412.492680][ T4398] __kmalloc_node_track_caller+0x84/0xc0 [ 412.494156][ T4398] kstrdup_const+0x90/0xdc [ 412.495290][ T4398] __kernfs_new_node+0x5c/0x2e8 [ 412.496471][ T4398] kernfs_create_dir_ns+0xac/0x188 [ 412.497843][ T4398] sysfs_create_dir_ns+0x8c/0x168 [ 412.499102][ T4398] kobject_add_internal+0x314/0x64c [ 412.500503][ T4398] kobject_add+0xb8/0x130 [ 412.501608][ T4398] blk_mq_register_hctx+0x54/0x184 [ 412.502884][ T4398] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 412.504394][ T4398] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 412.505870][ T4398] nbd_start_device+0xc4/0x510 [ 412.507125][ T4398] nbd_ioctl+0x228/0x66c [ 412.508266][ T4398] blkdev_ioctl+0x218/0x664 [ 412.509458][ T4398] __arm64_sys_ioctl+0xd0/0x148 [ 412.510808][ T4398] invoke_syscall+0x64/0x178 [ 412.512001][ T4398] el0_svc_common+0xb8/0x174 [ 412.513224][ T4398] do_el0_svc+0x48/0x174 [ 412.514345][ T4398] el0_svc+0x34/0x110 [ 412.515383][ T4398] el0t_64_sync_handler+0x84/0xf0 [ 412.516639][ T4398] el0t_64_sync+0x18c/0x190 [ 412.517875][ T4398] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 412.573534][ T4398] block nbd0: shutting down sockets [ 412.702101][ T4402] block nbd0: Device being setup by another task [ 412.703951][ T4401] FAULT_INJECTION: forcing a failure. [ 412.703951][ T4401] name failslab, interval 1, probability 0, space 0, times 0 [ 412.707321][ T4401] CPU: 0 PID: 4401 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 412.709987][ T4401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.712654][ T4401] Call trace: [ 412.713497][ T4401] dump_backtrace+0x1c8/0x1f4 [ 412.714701][ T4401] show_stack+0x2c/0x3c [ 412.715755][ T4401] dump_stack_lvl+0xc0/0x104 [ 412.717017][ T4401] dump_stack+0x1c/0x4c [ 412.718125][ T4401] should_fail_ex+0x1bc/0x1e0 [ 412.719380][ T4401] __should_failslab+0x64/0x78 [ 412.720656][ T4401] should_failslab+0x10/0x28 [ 412.721876][ T4401] slab_pre_alloc_hook+0x54/0x1f4 [ 412.723171][ T4401] kmem_cache_alloc_lru+0x60/0x2ac [ 412.724464][ T4401] alloc_inode+0x7c/0x104 [ 412.725589][ T4401] new_inode+0x2c/0xc0 [ 412.726650][ T4401] debugfs_create_dir+0x98/0x1e0 [ 412.727981][ T4401] nbd_start_device+0x1b4/0x510 [ 412.729215][ T4401] nbd_ioctl+0x228/0x66c [ 412.730312][ T4401] blkdev_ioctl+0x218/0x664 [ 412.731445][ T4401] __arm64_sys_ioctl+0xd0/0x148 [ 412.732737][ T4401] invoke_syscall+0x64/0x178 [ 412.733984][ T4401] el0_svc_common+0xb8/0x174 [ 412.735168][ T4401] do_el0_svc+0x48/0x174 [ 412.736318][ T4401] el0_svc+0x34/0x110 [ 412.737383][ T4401] el0t_64_sync_handler+0x84/0xf0 [ 412.738658][ T4401] el0t_64_sync+0x18c/0x190 [ 412.739870][ T4401] debugfs: out of free dentries, can not create directory 'nbd0' [ 412.741876][ T4401] block nbd0: Failed to create debugfs dir for 'nbd0' [ 412.842320][ T4401] block nbd0: shutting down sockets [ 412.964120][ T4404] ------------[ cut here ]------------ [ 412.965646][ T4404] kernfs: can not remove 'nr_tags', no directory [ 412.967247][ T4404] WARNING: CPU: 0 PID: 4404 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 412.969799][ T4404] Modules linked in: [ 412.970821][ T4404] CPU: 0 PID: 4404 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 412.973374][ T4404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 412.976020][ T4404] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 412.978128][ T4404] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 412.979609][ T4404] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 412.981050][ T4404] sp : ffff80000df7bac0 [ 412.982086][ T4404] x29: ffff80000df7bac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 412.984254][ T4404] x26: ffff0000c5891108 x25: ffff80000df7bbe8 x24: ffff0001ffb8c000 [ 412.986380][ T4404] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 412.988407][ T4404] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 412.990481][ T4404] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 412.992530][ T4404] x14: 0000000000000000 x13: 205d343034345420 x12: ffff80000d194000 [ 412.994649][ T4404] x11: 0000000000ff0100 x10: 0000000000000000 x9 : eaea73cd9b1c2500 [ 412.996715][ T4404] x8 : eaea73cd9b1c2500 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 412.998815][ T4404] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 413.000933][ T4404] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 413.003032][ T4404] Call trace: [ 413.003904][ T4404] kernfs_remove_by_name_ns+0xb4/0x110 [ 413.005409][ T4404] sysfs_remove_group+0x68/0x160 [ 413.006683][ T4404] sysfs_remove_groups+0x3c/0x78 [ 413.007967][ T4404] __kobject_del+0x34/0x134 [ 413.009120][ T4404] kobject_del+0x2c/0x4c [ 413.010162][ T4404] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 413.011711][ T4404] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 413.013172][ T4404] nbd_start_device+0xc4/0x510 [ 413.014428][ T4404] nbd_ioctl+0x228/0x66c [ 413.015479][ T4404] blkdev_ioctl+0x218/0x664 [ 413.016598][ T4404] __arm64_sys_ioctl+0xd0/0x148 [ 413.017846][ T4404] invoke_syscall+0x64/0x178 [ 413.019035][ T4404] el0_svc_common+0xb8/0x174 [ 413.020292][ T4404] do_el0_svc+0x48/0x174 [ 413.021412][ T4404] el0_svc+0x34/0x110 [ 413.022442][ T4404] el0t_64_sync_handler+0x84/0xf0 [ 413.023761][ T4404] el0t_64_sync+0x18c/0x190 [ 413.024970][ T4404] ---[ end trace 0000000000000000 ]--- [ 413.026455][ T4404] ------------[ cut here ]------------ [ 413.027926][ T4404] kernfs: can not remove 'nr_reserved_tags', no directory [ 413.029747][ T4404] WARNING: CPU: 0 PID: 4404 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 413.032257][ T4404] Modules linked in: [ 413.033300][ T4404] CPU: 0 PID: 4404 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 413.035948][ T4404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 413.038594][ T4404] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 413.040579][ T4404] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 413.042139][ T4404] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 413.043692][ T4404] sp : ffff80000df7bac0 [ 413.044802][ T4404] x29: ffff80000df7bac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 413.046913][ T4404] x26: ffff0000c5891108 x25: ffff80000df7bbe8 x24: ffff0001ffb8c000 [ 413.049019][ T4404] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 413.051164][ T4404] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 413.053243][ T4404] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 413.055370][ T4404] x14: 0000000000000000 x13: 205d343034345420 x12: ffff80000d194000 [ 413.057504][ T4404] x11: 0000000000ff0100 x10: 0000000000000000 x9 : eaea73cd9b1c2500 [ 413.059501][ T4404] x8 : eaea73cd9b1c2500 x7 : 0000000000000000 x6 : ffff80000ae14b50 [ 413.061608][ T4404] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9dcea8 [ 413.063669][ T4404] x2 : ffff0001fe9dcea8 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 413.065759][ T4404] Call trace: [ 413.066648][ T4404] kernfs_remove_by_name_ns+0xb4/0x110 [ 413.068118][ T4404] sysfs_remove_group+0x68/0x160 [ 413.069379][ T4404] sysfs_remove_groups+0x3c/0x78 [ 413.070687][ T4404] __kobject_del+0x34/0x134 [ 413.071867][ T4404] kobject_del+0x2c/0x4c [ 413.072961][ T4404] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 413.074518][ T4404] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 413.075937][ T4404] nbd_start_device+0xc4/0x510 [ 413.077176][ T4404] nbd_ioctl+0x228/0x66c [ 413.078288][ T4404] blkdev_ioctl+0x218/0x664 [ 413.079425][ T4404] __arm64_sys_ioctl+0xd0/0x148 [ 413.080715][ T4404] invoke_syscall+0x64/0x178 [ 413.081976][ T4404] el0_svc_common+0xb8/0x174 [ 413.083176][ T4404] do_el0_svc+0x48/0x174 [ 413.084267][ T4404] el0_svc+0x34/0x110 [ 413.085332][ T4404] el0t_64_sync_handler+0x84/0xf0 [ 413.086727][ T4404] el0t_64_sync+0x18c/0x190 [ 413.087914][ T4404] ---[ end trace 0000000000000000 ]--- [ 413.089408][ T4404] ------------[ cut here ]------------ [ 413.090757][ T4404] kernfs: can not remove 'cpu_list', no directory [ 413.092653][ T4404] WARNING: CPU: 0 PID: 4404 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 413.095184][ T4404] Modules linked in: [ 413.096174][ T4404] CPU: 0 PID: 4404 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 413.098628][ T4404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 413.101344][ T4404] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 413.103392][ T4404] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 413.104891][ T4404] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 413.106386][ T4404] sp : ffff80000df7bac0 [ 413.107455][ T4404] x29: ffff80000df7bac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 413.109561][ T4404] x26: ffff0000c5891108 x25: ffff80000df7bbe8 x24: ffff0001ffb8c000 [ 413.111585][ T4404] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 413.113713][ T4404] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 413.115798][ T4404] x17: ffff80000d3d0688 x16: 000000000000005a x15: 0000000000000096 [ 413.117894][ T4404] x14: 000000000000002c x13: 00000000000002d8 x12: ffff80000d194000 [ 413.119969][ T4404] x11: 0000000000ff0100 x10: 0000000000000000 x9 : eaea73cd9b1c2500 [ 413.122081][ T4404] x8 : eaea73cd9b1c2500 x7 : 0000000000000000 x6 : ffff800008131ff8 [ 413.124181][ T4404] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 413.126284][ T4404] x2 : 0000000000000000 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 413.128361][ T4404] Call trace: [ 413.129307][ T4404] kernfs_remove_by_name_ns+0xb4/0x110 [ 413.130773][ T4404] sysfs_remove_group+0x68/0x160 [ 413.132065][ T4404] sysfs_remove_groups+0x3c/0x78 [ 413.133390][ T4404] __kobject_del+0x34/0x134 [ 413.134544][ T4404] kobject_del+0x2c/0x4c [ 413.135641][ T4404] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 413.137220][ T4404] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 413.138741][ T4404] nbd_start_device+0xc4/0x510 [ 413.140047][ T4404] nbd_ioctl+0x228/0x66c [ 413.141159][ T4404] blkdev_ioctl+0x218/0x664 [ 413.142370][ T4404] __arm64_sys_ioctl+0xd0/0x148 [ 413.143636][ T4404] invoke_syscall+0x64/0x178 [ 413.144792][ T4404] el0_svc_common+0xb8/0x174 [ 413.146021][ T4404] do_el0_svc+0x48/0x174 [ 413.147177][ T4404] el0_svc+0x34/0x110 [ 413.148269][ T4404] el0t_64_sync_handler+0x84/0xf0 [ 413.149637][ T4404] el0t_64_sync+0x18c/0x190 [ 413.150797][ T4404] ---[ end trace 0000000000000000 ]--- [ 413.154561][ T4404] block nbd0: shutting down sockets [ 413.262324][ T4406] FAULT_INJECTION: forcing a failure. [ 413.262324][ T4406] name failslab, interval 1, probability 0, space 0, times 0 [ 413.265677][ T4406] CPU: 1 PID: 4406 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 413.268232][ T4406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 413.270936][ T4406] Call trace: [ 413.271756][ T4406] dump_backtrace+0x1c8/0x1f4 [ 413.273015][ T4406] show_stack+0x2c/0x3c [ 413.274085][ T4406] dump_stack_lvl+0xc0/0x104 [ 413.275329][ T4406] dump_stack+0x1c/0x4c [ 413.276452][ T4406] should_fail_ex+0x1bc/0x1e0 [ 413.277691][ T4406] __should_failslab+0x64/0x78 [ 413.278884][ T4406] should_failslab+0x10/0x28 [ 413.280062][ T4406] slab_pre_alloc_hook+0x54/0x1f4 [ 413.281400][ T4406] kmem_cache_alloc_lru+0x60/0x2ac [ 413.282737][ T4406] alloc_inode+0x7c/0x104 [ 413.283923][ T4406] new_inode+0x2c/0xc0 [ 413.284992][ T4406] debugfs_create_dir+0x98/0x1e0 [ 413.286312][ T4406] nbd_start_device+0x1b4/0x510 [ 413.287607][ T4406] nbd_ioctl+0x228/0x66c [ 413.288712][ T4406] blkdev_ioctl+0x218/0x664 [ 413.289874][ T4406] __arm64_sys_ioctl+0xd0/0x148 [ 413.291146][ T4406] invoke_syscall+0x64/0x178 [ 413.292331][ T4406] el0_svc_common+0xb8/0x174 [ 413.293493][ T4406] do_el0_svc+0x48/0x174 [ 413.294634][ T4406] el0_svc+0x34/0x110 [ 413.295627][ T4406] el0t_64_sync_handler+0x84/0xf0 [ 413.296886][ T4406] el0t_64_sync+0x18c/0x190 [ 413.298137][ T4406] debugfs: out of free dentries, can not create directory 'nbd0' [ 413.300207][ T4406] block nbd0: Failed to create debugfs dir for 'nbd0' [ 413.420310][ T4406] block nbd0: shutting down sockets [ 413.502403][ T4408] FAULT_INJECTION: forcing a failure. [ 413.502403][ T4408] name failslab, interval 1, probability 0, space 0, times 0 [ 413.505776][ T4408] CPU: 1 PID: 4408 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 413.508508][ T4408] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 413.511082][ T4408] Call trace: [ 413.511929][ T4408] dump_backtrace+0x1c8/0x1f4 [ 413.513149][ T4408] show_stack+0x2c/0x3c [ 413.514198][ T4408] dump_stack_lvl+0xc0/0x104 [ 413.515416][ T4408] dump_stack+0x1c/0x4c [ 413.516460][ T4408] should_fail_ex+0x1bc/0x1e0 [ 413.517709][ T4408] __should_failslab+0x64/0x78 [ 413.518992][ T4408] should_failslab+0x10/0x28 [ 413.520200][ T4408] slab_pre_alloc_hook+0x54/0x1f4 [ 413.521523][ T4408] kmem_cache_alloc_lru+0x60/0x2ac [ 413.522847][ T4408] alloc_inode+0x7c/0x104 [ 413.523956][ T4408] new_inode+0x2c/0xc0 [ 413.524984][ T4408] debugfs_create_dir+0x98/0x1e0 [ 413.526246][ T4408] nbd_start_device+0x1b4/0x510 [ 413.527569][ T4408] nbd_ioctl+0x228/0x66c [ 413.528677][ T4408] blkdev_ioctl+0x218/0x664 [ 413.529888][ T4408] __arm64_sys_ioctl+0xd0/0x148 [ 413.531169][ T4408] invoke_syscall+0x64/0x178 [ 413.532382][ T4408] el0_svc_common+0xb8/0x174 [ 413.533603][ T4408] do_el0_svc+0x48/0x174 [ 413.534605][ T4408] el0_svc+0x34/0x110 [ 413.535454][ T4408] el0t_64_sync_handler+0x84/0xf0 [ 413.536780][ T4408] el0t_64_sync+0x18c/0x190 [ 413.537995][ T4408] debugfs: out of free dentries, can not create directory 'nbd0' [ 413.540066][ T4408] block nbd0: Failed to create debugfs dir for 'nbd0' [ 413.660256][ T4408] block nbd0: shutting down sockets [ 413.762087][ T4411] block nbd0: Device being setup by another task [ 413.804441][ T4410] FAULT_INJECTION: forcing a failure. [ 413.804441][ T4410] name failslab, interval 1, probability 0, space 0, times 0 [ 413.807957][ T4410] CPU: 0 PID: 4410 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 413.810466][ T4410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 413.813091][ T4410] Call trace: [ 413.813937][ T4410] dump_backtrace+0x1c8/0x1f4 [ 413.815150][ T4410] show_stack+0x2c/0x3c [ 413.816249][ T4410] dump_stack_lvl+0xc0/0x104 [ 413.817480][ T4410] dump_stack+0x1c/0x4c [ 413.818558][ T4410] should_fail_ex+0x1bc/0x1e0 [ 413.819739][ T4410] __should_failslab+0x64/0x78 [ 413.820965][ T4410] should_failslab+0x10/0x28 [ 413.822150][ T4410] __kmem_cache_alloc_node+0x6c/0x348 [ 413.823636][ T4410] __kmalloc_node_track_caller+0x84/0xc0 [ 413.825156][ T4410] kstrdup_const+0x90/0xdc [ 413.826333][ T4410] __kernfs_new_node+0x5c/0x2e8 [ 413.827608][ T4410] kernfs_create_dir_ns+0xac/0x188 [ 413.828909][ T4410] sysfs_create_dir_ns+0x8c/0x168 [ 413.830225][ T4410] kobject_add_internal+0x314/0x64c [ 413.831646][ T4410] kobject_add+0xb8/0x130 [ 413.832794][ T4410] blk_mq_register_hctx+0x54/0x184 [ 413.834110][ T4410] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 413.835610][ T4410] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 413.837102][ T4410] nbd_start_device+0xc4/0x510 [ 413.838347][ T4410] nbd_ioctl+0x228/0x66c [ 413.839399][ T4410] blkdev_ioctl+0x218/0x664 [ 413.840632][ T4410] __arm64_sys_ioctl+0xd0/0x148 [ 413.841903][ T4410] invoke_syscall+0x64/0x178 [ 413.843118][ T4410] el0_svc_common+0xb8/0x174 [ 413.844346][ T4410] do_el0_svc+0x48/0x174 [ 413.845435][ T4410] el0_svc+0x34/0x110 [ 413.846509][ T4410] el0t_64_sync_handler+0x84/0xf0 [ 413.847811][ T4410] el0t_64_sync+0x18c/0x190 [ 413.849121][ T4410] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 413.957067][ T4410] block nbd0: shutting down sockets [ 414.083970][ T4413] ------------[ cut here ]------------ [ 414.085477][ T4413] kernfs: can not remove 'nr_tags', no directory [ 414.087130][ T4413] WARNING: CPU: 1 PID: 4413 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.089616][ T4413] Modules linked in: [ 414.090702][ T4413] CPU: 1 PID: 4413 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.093303][ T4413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.095907][ T4413] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.097962][ T4413] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.099493][ T4413] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.101006][ T4413] sp : ffff80000df73ac0 [ 414.102070][ T4413] x29: ffff80000df73ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.104109][ T4413] x26: ffff0000c5891108 x25: ffff80000df73be8 x24: ffff0001ffb9c000 [ 414.106291][ T4413] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.108311][ T4413] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.110415][ T4413] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 414.112506][ T4413] x14: 0000000000000000 x13: 205d333134345420 x12: ffff80000d194000 [ 414.114611][ T4413] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2afd0fef065b2500 [ 414.116703][ T4413] x8 : 2afd0fef065b2500 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 414.118808][ T4413] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.120888][ T4413] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 414.122988][ T4413] Call trace: [ 414.123863][ T4413] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.125064][ T4413] sysfs_remove_group+0x68/0x160 [ 414.126064][ T4413] sysfs_remove_groups+0x3c/0x78 [ 414.127117][ T4413] __kobject_del+0x34/0x134 [ 414.128071][ T4413] kobject_del+0x2c/0x4c [ 414.129082][ T4413] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.130632][ T4413] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.132073][ T4413] nbd_start_device+0xc4/0x510 [ 414.133402][ T4413] nbd_ioctl+0x228/0x66c [ 414.134543][ T4413] blkdev_ioctl+0x218/0x664 [ 414.135712][ T4413] __arm64_sys_ioctl+0xd0/0x148 [ 414.136978][ T4413] invoke_syscall+0x64/0x178 [ 414.138161][ T4413] el0_svc_common+0xb8/0x174 [ 414.139402][ T4413] do_el0_svc+0x48/0x174 [ 414.140513][ T4413] el0_svc+0x34/0x110 [ 414.141525][ T4413] el0t_64_sync_handler+0x84/0xf0 [ 414.142802][ T4413] el0t_64_sync+0x18c/0x190 [ 414.143963][ T4413] ---[ end trace 0000000000000000 ]--- [ 414.145488][ T4413] ------------[ cut here ]------------ [ 414.146849][ T4413] kernfs: can not remove 'nr_reserved_tags', no directory [ 414.148735][ T4413] WARNING: CPU: 1 PID: 4413 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.151216][ T4413] Modules linked in: [ 414.152218][ T4413] CPU: 1 PID: 4413 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.154872][ T4413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.157508][ T4413] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.159569][ T4413] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.161099][ T4413] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.162653][ T4413] sp : ffff80000df73ac0 [ 414.163786][ T4413] x29: ffff80000df73ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.165886][ T4413] x26: ffff0000c5891108 x25: ffff80000df73be8 x24: ffff0001ffb9c000 [ 414.168269][ T4413] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.170474][ T4413] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.172576][ T4413] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 414.174640][ T4413] x14: 0000000000000000 x13: 205d333134345420 x12: ffff80000d194000 [ 414.176693][ T4413] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2afd0fef065b2500 [ 414.178741][ T4413] x8 : 2afd0fef065b2500 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 414.180801][ T4413] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.182952][ T4413] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 414.185102][ T4413] Call trace: [ 414.186024][ T4413] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.187584][ T4413] sysfs_remove_group+0x68/0x160 [ 414.188865][ T4413] sysfs_remove_groups+0x3c/0x78 [ 414.190142][ T4413] __kobject_del+0x34/0x134 [ 414.191326][ T4413] kobject_del+0x2c/0x4c [ 414.192469][ T4413] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.194030][ T4413] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.195590][ T4413] nbd_start_device+0xc4/0x510 [ 414.196827][ T4413] nbd_ioctl+0x228/0x66c [ 414.197999][ T4413] blkdev_ioctl+0x218/0x664 [ 414.199165][ T4413] __arm64_sys_ioctl+0xd0/0x148 [ 414.200480][ T4413] invoke_syscall+0x64/0x178 [ 414.201665][ T4413] el0_svc_common+0xb8/0x174 [ 414.202892][ T4413] do_el0_svc+0x48/0x174 [ 414.204056][ T4413] el0_svc+0x34/0x110 [ 414.205071][ T4413] el0t_64_sync_handler+0x84/0xf0 [ 414.206411][ T4413] el0t_64_sync+0x18c/0x190 [ 414.207535][ T4413] ---[ end trace 0000000000000000 ]--- [ 414.209044][ T4413] ------------[ cut here ]------------ [ 414.210489][ T4413] kernfs: can not remove 'cpu_list', no directory [ 414.212326][ T4413] WARNING: CPU: 1 PID: 4413 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.214924][ T4413] Modules linked in: [ 414.216053][ T4413] CPU: 1 PID: 4413 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.218716][ T4413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.221332][ T4413] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.223431][ T4413] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.224960][ T4413] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.226439][ T4413] sp : ffff80000df73ac0 [ 414.227574][ T4413] x29: ffff80000df73ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.229708][ T4413] x26: ffff0000c5891108 x25: ffff80000df73be8 x24: ffff0001ffb9c000 [ 414.231758][ T4413] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.233947][ T4413] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.236065][ T4413] x17: ffff80000d3d0688 x16: 000000000000005e x15: 0000000000000082 [ 414.238236][ T4413] x14: 0000000000000022 x13: 0000000000000268 x12: ffff80000d194000 [ 414.240338][ T4413] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2afd0fef065b2500 [ 414.242360][ T4413] x8 : 2afd0fef065b2500 x7 : 0000000000000000 x6 : ffff800008131ff8 [ 414.244466][ T4413] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.246604][ T4413] x2 : 0000000000000000 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 414.248684][ T4413] Call trace: [ 414.249565][ T4413] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.251021][ T4413] sysfs_remove_group+0x68/0x160 [ 414.252345][ T4413] sysfs_remove_groups+0x3c/0x78 [ 414.253617][ T4413] __kobject_del+0x34/0x134 [ 414.254789][ T4413] kobject_del+0x2c/0x4c [ 414.255824][ T4413] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.257417][ T4413] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.258995][ T4413] nbd_start_device+0xc4/0x510 [ 414.260304][ T4413] nbd_ioctl+0x228/0x66c [ 414.261474][ T4413] blkdev_ioctl+0x218/0x664 [ 414.262710][ T4413] __arm64_sys_ioctl+0xd0/0x148 [ 414.264014][ T4413] invoke_syscall+0x64/0x178 [ 414.265211][ T4413] el0_svc_common+0xb8/0x174 [ 414.266411][ T4413] do_el0_svc+0x48/0x174 [ 414.267542][ T4413] el0_svc+0x34/0x110 [ 414.268577][ T4413] el0t_64_sync_handler+0x84/0xf0 [ 414.269886][ T4413] el0t_64_sync+0x18c/0x190 [ 414.271098][ T4413] ---[ end trace 0000000000000000 ]--- [ 414.274968][ T4413] block nbd0: shutting down sockets [ 414.392084][ T4416] block nbd0: Device being setup by another task [ 414.443937][ T4415] FAULT_INJECTION: forcing a failure. [ 414.443937][ T4415] name failslab, interval 1, probability 0, space 0, times 0 [ 414.447462][ T4415] CPU: 0 PID: 4415 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.450137][ T4415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.452812][ T4415] Call trace: [ 414.453683][ T4415] dump_backtrace+0x1c8/0x1f4 [ 414.454948][ T4415] show_stack+0x2c/0x3c [ 414.456013][ T4415] dump_stack_lvl+0xc0/0x104 [ 414.457178][ T4415] dump_stack+0x1c/0x4c [ 414.458240][ T4415] should_fail_ex+0x1bc/0x1e0 [ 414.459473][ T4415] __should_failslab+0x64/0x78 [ 414.460737][ T4415] should_failslab+0x10/0x28 [ 414.461955][ T4415] __kmem_cache_alloc_node+0x6c/0x348 [ 414.463411][ T4415] __kmalloc_node_track_caller+0x84/0xc0 [ 414.464893][ T4415] kstrdup_const+0x90/0xdc [ 414.466071][ T4415] __kernfs_new_node+0x5c/0x2e8 [ 414.467321][ T4415] kernfs_create_dir_ns+0xac/0x188 [ 414.468744][ T4415] sysfs_create_dir_ns+0x8c/0x168 [ 414.470066][ T4415] kobject_add_internal+0x314/0x64c [ 414.471449][ T4415] kobject_add+0xb8/0x130 [ 414.472559][ T4415] blk_mq_register_hctx+0x54/0x184 [ 414.473945][ T4415] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 414.475528][ T4415] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 414.477018][ T4415] nbd_start_device+0xc4/0x510 [ 414.478301][ T4415] nbd_ioctl+0x228/0x66c [ 414.479414][ T4415] blkdev_ioctl+0x218/0x664 [ 414.480600][ T4415] __arm64_sys_ioctl+0xd0/0x148 [ 414.481863][ T4415] invoke_syscall+0x64/0x178 [ 414.483029][ T4415] el0_svc_common+0xb8/0x174 [ 414.484239][ T4415] do_el0_svc+0x48/0x174 [ 414.485308][ T4415] el0_svc+0x34/0x110 [ 414.486362][ T4415] el0t_64_sync_handler+0x84/0xf0 [ 414.487673][ T4415] el0t_64_sync+0x18c/0x190 [ 414.488853][ T4415] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 414.543431][ T4415] block nbd0: shutting down sockets [ 414.663876][ T4418] ------------[ cut here ]------------ [ 414.665395][ T4418] kernfs: can not remove 'nr_tags', no directory [ 414.667051][ T4418] WARNING: CPU: 1 PID: 4418 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.669497][ T4418] Modules linked in: [ 414.670482][ T4418] CPU: 1 PID: 4418 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.672988][ T4418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.675634][ T4418] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.677714][ T4418] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.679188][ T4418] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.680694][ T4418] sp : ffff80000decbac0 [ 414.681818][ T4418] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.683845][ T4418] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffba6f80 [ 414.685941][ T4418] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.688070][ T4418] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.690125][ T4418] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 414.692219][ T4418] x14: 0000000000000000 x13: 205d383134345420 x12: ffff80000d194000 [ 414.694298][ T4418] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2f42ada2c20b9400 [ 414.696458][ T4418] x8 : 2f42ada2c20b9400 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 414.698490][ T4418] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.700646][ T4418] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 414.702757][ T4418] Call trace: [ 414.703591][ T4418] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.705076][ T4418] sysfs_remove_group+0x68/0x160 [ 414.706585][ T4418] sysfs_remove_groups+0x3c/0x78 [ 414.707923][ T4418] __kobject_del+0x34/0x134 [ 414.709081][ T4418] kobject_del+0x2c/0x4c [ 414.710186][ T4418] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.711704][ T4418] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.713209][ T4418] nbd_start_device+0xc4/0x510 [ 414.714442][ T4418] nbd_ioctl+0x228/0x66c [ 414.715530][ T4418] blkdev_ioctl+0x218/0x664 [ 414.716673][ T4418] __arm64_sys_ioctl+0xd0/0x148 [ 414.718006][ T4418] invoke_syscall+0x64/0x178 [ 414.719243][ T4418] el0_svc_common+0xb8/0x174 [ 414.720424][ T4418] do_el0_svc+0x48/0x174 [ 414.721479][ T4418] el0_svc+0x34/0x110 [ 414.722515][ T4418] el0t_64_sync_handler+0x84/0xf0 [ 414.723826][ T4418] el0t_64_sync+0x18c/0x190 [ 414.725023][ T4418] ---[ end trace 0000000000000000 ]--- [ 414.726501][ T4418] ------------[ cut here ]------------ [ 414.727886][ T4418] kernfs: can not remove 'nr_reserved_tags', no directory [ 414.729851][ T4418] WARNING: CPU: 1 PID: 4418 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.732531][ T4418] Modules linked in: [ 414.733521][ T4418] CPU: 1 PID: 4418 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.736138][ T4418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.738687][ T4418] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.740704][ T4418] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.742192][ T4418] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.743680][ T4418] sp : ffff80000decbac0 [ 414.744820][ T4418] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.746967][ T4418] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffba6f80 [ 414.749052][ T4418] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.751280][ T4418] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.753371][ T4418] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 414.755526][ T4418] x14: 0000000000000000 x13: 205d383134345420 x12: ffff80000d194000 [ 414.757716][ T4418] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2f42ada2c20b9400 [ 414.759817][ T4418] x8 : 2f42ada2c20b9400 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 414.761946][ T4418] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.764041][ T4418] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 414.766122][ T4418] Call trace: [ 414.766979][ T4418] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.768390][ T4418] sysfs_remove_group+0x68/0x160 [ 414.769683][ T4418] sysfs_remove_groups+0x3c/0x78 [ 414.771016][ T4418] __kobject_del+0x34/0x134 [ 414.772160][ T4418] kobject_del+0x2c/0x4c [ 414.773303][ T4418] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.774926][ T4418] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.776421][ T4418] nbd_start_device+0xc4/0x510 [ 414.777675][ T4418] nbd_ioctl+0x228/0x66c [ 414.778747][ T4418] blkdev_ioctl+0x218/0x664 [ 414.779945][ T4418] __arm64_sys_ioctl+0xd0/0x148 [ 414.781262][ T4418] invoke_syscall+0x64/0x178 [ 414.782583][ T4418] el0_svc_common+0xb8/0x174 [ 414.783809][ T4418] do_el0_svc+0x48/0x174 [ 414.784937][ T4418] el0_svc+0x34/0x110 [ 414.785938][ T4418] el0t_64_sync_handler+0x84/0xf0 [ 414.787226][ T4418] el0t_64_sync+0x18c/0x190 [ 414.788411][ T4418] ---[ end trace 0000000000000000 ]--- [ 414.789867][ T4418] ------------[ cut here ]------------ [ 414.791321][ T4418] kernfs: can not remove 'cpu_list', no directory [ 414.793204][ T4418] WARNING: CPU: 1 PID: 4418 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 414.795697][ T4418] Modules linked in: [ 414.796688][ T4418] CPU: 1 PID: 4418 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 414.799357][ T4418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 414.801973][ T4418] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 414.804057][ T4418] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 414.805613][ T4418] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 414.807152][ T4418] sp : ffff80000decbac0 [ 414.808206][ T4418] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 414.810416][ T4418] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffba6f80 [ 414.812509][ T4418] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 414.814551][ T4418] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 414.816611][ T4418] x17: ffff80000d3d0688 x16: 000000000000005e x15: 0000000000000084 [ 414.818775][ T4418] x14: 0000000000000026 x13: 00000000000000e0 x12: ffff80000d194000 [ 414.820891][ T4418] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2f42ada2c20b9400 [ 414.822984][ T4418] x8 : 2f42ada2c20b9400 x7 : 0000000000000000 x6 : ffff800008131ff8 [ 414.825084][ T4418] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 414.827114][ T4418] x2 : 0000000000000000 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 414.829257][ T4418] Call trace: [ 414.830162][ T4418] kernfs_remove_by_name_ns+0xb4/0x110 [ 414.831561][ T4418] sysfs_remove_group+0x68/0x160 [ 414.832871][ T4418] sysfs_remove_groups+0x3c/0x78 [ 414.834190][ T4418] __kobject_del+0x34/0x134 [ 414.835433][ T4418] kobject_del+0x2c/0x4c [ 414.836490][ T4418] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 414.838014][ T4418] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 414.839512][ T4418] nbd_start_device+0xc4/0x510 [ 414.840763][ T4418] nbd_ioctl+0x228/0x66c [ 414.841941][ T4418] blkdev_ioctl+0x218/0x664 [ 414.843100][ T4418] __arm64_sys_ioctl+0xd0/0x148 [ 414.844359][ T4418] invoke_syscall+0x64/0x178 [ 414.845576][ T4418] el0_svc_common+0xb8/0x174 [ 414.846776][ T4418] do_el0_svc+0x48/0x174 [ 414.847838][ T4418] el0_svc+0x34/0x110 [ 414.848900][ T4418] el0t_64_sync_handler+0x84/0xf0 [ 414.850197][ T4418] el0t_64_sync+0x18c/0x190 [ 414.851432][ T4418] ---[ end trace 0000000000000000 ]--- [ 414.855171][ T4418] block nbd0: shutting down sockets [ 414.992155][ T4421] block nbd0: Device being setup by another task [ 415.033851][ T4420] FAULT_INJECTION: forcing a failure. [ 415.033851][ T4420] name failslab, interval 1, probability 0, space 0, times 0 [ 415.037258][ T4420] CPU: 0 PID: 4420 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.039854][ T4420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.042514][ T4420] Call trace: [ 415.043341][ T4420] dump_backtrace+0x1c8/0x1f4 [ 415.044586][ T4420] show_stack+0x2c/0x3c [ 415.045689][ T4420] dump_stack_lvl+0xc0/0x104 [ 415.046877][ T4420] dump_stack+0x1c/0x4c [ 415.047975][ T4420] should_fail_ex+0x1bc/0x1e0 [ 415.049193][ T4420] __should_failslab+0x64/0x78 [ 415.050488][ T4420] should_failslab+0x10/0x28 [ 415.051703][ T4420] __kmem_cache_alloc_node+0x6c/0x348 [ 415.053107][ T4420] __kmalloc_node_track_caller+0x84/0xc0 [ 415.054560][ T4420] kstrdup_const+0x90/0xdc [ 415.055662][ T4420] __kernfs_new_node+0x5c/0x2e8 [ 415.056886][ T4420] kernfs_create_dir_ns+0xac/0x188 [ 415.058241][ T4420] sysfs_create_dir_ns+0x8c/0x168 [ 415.059526][ T4420] kobject_add_internal+0x314/0x64c [ 415.060847][ T4420] kobject_add+0xb8/0x130 [ 415.061970][ T4420] blk_mq_register_hctx+0x54/0x184 [ 415.063311][ T4420] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 415.064809][ T4420] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 415.066293][ T4420] nbd_start_device+0xc4/0x510 [ 415.067549][ T4420] nbd_ioctl+0x228/0x66c [ 415.068643][ T4420] blkdev_ioctl+0x218/0x664 [ 415.069809][ T4420] __arm64_sys_ioctl+0xd0/0x148 [ 415.071058][ T4420] invoke_syscall+0x64/0x178 [ 415.072262][ T4420] el0_svc_common+0xb8/0x174 [ 415.073424][ T4420] do_el0_svc+0x48/0x174 [ 415.074550][ T4420] el0_svc+0x34/0x110 [ 415.075542][ T4420] el0t_64_sync_handler+0x84/0xf0 [ 415.076880][ T4420] el0t_64_sync+0x18c/0x190 [ 415.078112][ T4420] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 415.123910][ T4420] block nbd0: shutting down sockets [ 415.283365][ T4424] ------------[ cut here ]------------ [ 415.284797][ T4424] kernfs: can not remove 'nr_tags', no directory [ 415.286433][ T4424] WARNING: CPU: 1 PID: 4424 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 415.288823][ T4424] Modules linked in: [ 415.289819][ T4424] CPU: 1 PID: 4424 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.292303][ T4424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.294947][ T4424] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 415.296942][ T4424] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 415.298374][ T4424] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 415.299858][ T4424] sp : ffff80000dfa3ac0 [ 415.300954][ T4424] x29: ffff80000dfa3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 415.303080][ T4424] x26: ffff0000c5891108 x25: ffff80000dfa3be8 x24: ffff0000c65ebf80 [ 415.305140][ T4424] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 415.307322][ T4424] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 415.309402][ T4424] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 415.311476][ T4424] x14: 0000000000000000 x13: 205d343234345420 x12: ffff80000d194000 [ 415.313495][ T4424] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 02c27e3b1b529000 [ 415.315547][ T4424] x8 : 02c27e3b1b529000 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 415.317619][ T4424] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 415.319801][ T4424] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 415.321876][ T4424] Call trace: [ 415.322711][ T4424] kernfs_remove_by_name_ns+0xb4/0x110 [ 415.324138][ T4424] sysfs_remove_group+0x68/0x160 [ 415.325439][ T4424] sysfs_remove_groups+0x3c/0x78 [ 415.326696][ T4424] __kobject_del+0x34/0x134 [ 415.327892][ T4424] kobject_del+0x2c/0x4c [ 415.328964][ T4424] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 415.330475][ T4424] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 415.331901][ T4424] nbd_start_device+0xc4/0x510 [ 415.333171][ T4424] nbd_ioctl+0x228/0x66c [ 415.334282][ T4424] blkdev_ioctl+0x218/0x664 [ 415.335472][ T4424] __arm64_sys_ioctl+0xd0/0x148 [ 415.336736][ T4424] invoke_syscall+0x64/0x178 [ 415.337939][ T4424] el0_svc_common+0xb8/0x174 [ 415.339131][ T4424] do_el0_svc+0x48/0x174 [ 415.340249][ T4424] el0_svc+0x34/0x110 [ 415.341265][ T4424] el0t_64_sync_handler+0x84/0xf0 [ 415.342547][ T4424] el0t_64_sync+0x18c/0x190 [ 415.343717][ T4424] ---[ end trace 0000000000000000 ]--- [ 415.345178][ T4424] ------------[ cut here ]------------ [ 415.346647][ T4424] kernfs: can not remove 'nr_reserved_tags', no directory [ 415.348532][ T4424] WARNING: CPU: 1 PID: 4424 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 415.350964][ T4424] Modules linked in: [ 415.351954][ T4424] CPU: 1 PID: 4424 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.354572][ T4424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.357260][ T4424] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 415.359343][ T4424] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 415.360806][ T4424] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 415.362286][ T4424] sp : ffff80000dfa3ac0 [ 415.363341][ T4424] x29: ffff80000dfa3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 415.365418][ T4424] x26: ffff0000c5891108 x25: ffff80000dfa3be8 x24: ffff0000c65ebf80 [ 415.367464][ T4424] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 415.369641][ T4424] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 415.371796][ T4424] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 415.373864][ T4424] x14: 0000000000000000 x13: 205d343234345420 x12: ffff80000d194000 [ 415.375908][ T4424] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 02c27e3b1b529000 [ 415.378043][ T4424] x8 : 02c27e3b1b529000 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 415.380137][ T4424] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 415.382196][ T4424] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 415.384309][ T4424] Call trace: [ 415.385154][ T4424] kernfs_remove_by_name_ns+0xb4/0x110 [ 415.386608][ T4424] sysfs_remove_group+0x68/0x160 [ 415.387975][ T4424] sysfs_remove_groups+0x3c/0x78 [ 415.389382][ T4424] __kobject_del+0x34/0x134 [ 415.390588][ T4424] kobject_del+0x2c/0x4c [ 415.391667][ T4424] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 415.393215][ T4424] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 415.394783][ T4424] nbd_start_device+0xc4/0x510 [ 415.396034][ T4424] nbd_ioctl+0x228/0x66c [ 415.397139][ T4424] blkdev_ioctl+0x218/0x664 [ 415.398267][ T4424] __arm64_sys_ioctl+0xd0/0x148 [ 415.399595][ T4424] invoke_syscall+0x64/0x178 [ 415.400797][ T4424] el0_svc_common+0xb8/0x174 [ 415.401984][ T4424] do_el0_svc+0x48/0x174 [ 415.403139][ T4424] el0_svc+0x34/0x110 [ 415.404206][ T4424] el0t_64_sync_handler+0x84/0xf0 [ 415.405505][ T4424] el0t_64_sync+0x18c/0x190 [ 415.406716][ T4424] ---[ end trace 0000000000000000 ]--- [ 415.408174][ T4424] ------------[ cut here ]------------ [ 415.409583][ T4424] kernfs: can not remove 'cpu_list', no directory [ 415.411382][ T4424] WARNING: CPU: 1 PID: 4424 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 415.413975][ T4424] Modules linked in: [ 415.414965][ T4424] CPU: 1 PID: 4424 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.417495][ T4424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.420069][ T4424] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 415.422110][ T4424] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 415.423590][ T4424] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 415.425112][ T4424] sp : ffff80000dfa3ac0 [ 415.426207][ T4424] x29: ffff80000dfa3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 415.428317][ T4424] x26: ffff0000c5891108 x25: ffff80000dfa3be8 x24: ffff0000c65ebf80 [ 415.430522][ T4424] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 415.432557][ T4424] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 415.434654][ T4424] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 415.436701][ T4424] x14: 0000000000000000 x13: 205d343234345420 x12: ffff80000d194000 [ 415.438783][ T4424] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 02c27e3b1b529000 [ 415.440987][ T4424] x8 : 02c27e3b1b529000 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 415.443078][ T4424] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 415.445195][ T4424] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 415.447402][ T4424] Call trace: [ 415.448243][ T4424] kernfs_remove_by_name_ns+0xb4/0x110 [ 415.449647][ T4424] sysfs_remove_group+0x68/0x160 [ 415.450923][ T4424] sysfs_remove_groups+0x3c/0x78 [ 415.452177][ T4424] __kobject_del+0x34/0x134 [ 415.453406][ T4424] kobject_del+0x2c/0x4c [ 415.454488][ T4424] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 415.456037][ T4424] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 415.457584][ T4424] nbd_start_device+0xc4/0x510 [ 415.458763][ T4424] nbd_ioctl+0x228/0x66c [ 415.459846][ T4424] blkdev_ioctl+0x218/0x664 [ 415.461007][ T4424] __arm64_sys_ioctl+0xd0/0x148 [ 415.462270][ T4424] invoke_syscall+0x64/0x178 [ 415.463482][ T4424] el0_svc_common+0xb8/0x174 [ 415.464707][ T4424] do_el0_svc+0x48/0x174 [ 415.465806][ T4424] el0_svc+0x34/0x110 [ 415.466844][ T4424] el0t_64_sync_handler+0x84/0xf0 [ 415.468154][ T4424] el0t_64_sync+0x18c/0x190 [ 415.469408][ T4424] ---[ end trace 0000000000000000 ]--- [ 415.472738][ T4424] block nbd0: shutting down sockets [ 415.582141][ T4427] FAULT_INJECTION: forcing a failure. [ 415.582141][ T4427] name failslab, interval 1, probability 0, space 0, times 0 [ 415.585399][ T4427] CPU: 0 PID: 4427 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.588010][ T4427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.590586][ T4427] Call trace: [ 415.591445][ T4427] dump_backtrace+0x1c8/0x1f4 [ 415.592636][ T4427] show_stack+0x2c/0x3c [ 415.593687][ T4427] dump_stack_lvl+0xc0/0x104 [ 415.594831][ T4427] dump_stack+0x1c/0x4c [ 415.595895][ T4427] should_fail_ex+0x1bc/0x1e0 [ 415.597084][ T4427] __should_failslab+0x64/0x78 [ 415.598266][ T4427] should_failslab+0x10/0x28 [ 415.599406][ T4427] slab_pre_alloc_hook+0x54/0x1f4 [ 415.600739][ T4427] kmem_cache_alloc_lru+0x60/0x2ac [ 415.602024][ T4427] alloc_inode+0x7c/0x104 [ 415.603170][ T4427] new_inode+0x2c/0xc0 [ 415.604179][ T4427] debugfs_create_dir+0x98/0x1e0 [ 415.605530][ T4427] nbd_start_device+0x1b4/0x510 [ 415.606796][ T4427] nbd_ioctl+0x228/0x66c [ 415.607872][ T4427] blkdev_ioctl+0x218/0x664 [ 415.609039][ T4427] __arm64_sys_ioctl+0xd0/0x148 [ 415.610272][ T4427] invoke_syscall+0x64/0x178 [ 415.611461][ T4427] el0_svc_common+0xb8/0x174 [ 415.612633][ T4427] do_el0_svc+0x48/0x174 [ 415.613708][ T4427] el0_svc+0x34/0x110 [ 415.614721][ T4427] el0t_64_sync_handler+0x84/0xf0 [ 415.616023][ T4427] el0t_64_sync+0x18c/0x190 [ 415.617211][ T4427] debugfs: out of free dentries, can not create directory 'nbd0' [ 415.619118][ T4427] block nbd0: Failed to create debugfs dir for 'nbd0' [ 415.722140][ T4427] block nbd0: shutting down sockets [ 415.842090][ T4430] block nbd0: Device being setup by another task [ 415.893723][ T4429] FAULT_INJECTION: forcing a failure. [ 415.893723][ T4429] name failslab, interval 1, probability 0, space 0, times 0 [ 415.897045][ T4429] CPU: 1 PID: 4429 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 415.899633][ T4429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 415.902291][ T4429] Call trace: [ 415.903150][ T4429] dump_backtrace+0x1c8/0x1f4 [ 415.904375][ T4429] show_stack+0x2c/0x3c [ 415.905466][ T4429] dump_stack_lvl+0xc0/0x104 [ 415.906659][ T4429] dump_stack+0x1c/0x4c [ 415.907729][ T4429] should_fail_ex+0x1bc/0x1e0 [ 415.908954][ T4429] __should_failslab+0x64/0x78 [ 415.910132][ T4429] should_failslab+0x10/0x28 [ 415.911278][ T4429] __kmem_cache_alloc_node+0x6c/0x348 [ 415.912639][ T4429] __kmalloc_node_track_caller+0x84/0xc0 [ 415.914078][ T4429] kstrdup_const+0x90/0xdc [ 415.915211][ T4429] __kernfs_new_node+0x5c/0x2e8 [ 415.916454][ T4429] kernfs_create_dir_ns+0xac/0x188 [ 415.917836][ T4429] sysfs_create_dir_ns+0x8c/0x168 [ 415.919077][ T4429] kobject_add_internal+0x314/0x64c [ 415.920485][ T4429] kobject_add+0xb8/0x130 [ 415.921496][ T4429] blk_mq_register_hctx+0x54/0x184 [ 415.922894][ T4429] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 415.924415][ T4429] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 415.925964][ T4429] nbd_start_device+0xc4/0x510 [ 415.927202][ T4429] nbd_ioctl+0x228/0x66c [ 415.928295][ T4429] blkdev_ioctl+0x218/0x664 [ 415.929509][ T4429] __arm64_sys_ioctl+0xd0/0x148 [ 415.930738][ T4429] invoke_syscall+0x64/0x178 [ 415.931869][ T4429] el0_svc_common+0xb8/0x174 [ 415.933018][ T4429] do_el0_svc+0x48/0x174 [ 415.934080][ T4429] el0_svc+0x34/0x110 [ 415.935143][ T4429] el0t_64_sync_handler+0x84/0xf0 [ 415.936478][ T4429] el0t_64_sync+0x18c/0x190 [ 415.937644][ T4429] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 415.993314][ T4429] block nbd0: shutting down sockets [ 416.113790][ T4432] ------------[ cut here ]------------ [ 416.115324][ T4432] kernfs: can not remove 'nr_tags', no directory [ 416.116985][ T4432] WARNING: CPU: 1 PID: 4432 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 416.119344][ T4432] Modules linked in: [ 416.120247][ T4432] CPU: 1 PID: 4432 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.122805][ T4432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.125503][ T4432] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 416.127427][ T4432] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 416.128970][ T4432] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 416.130480][ T4432] sp : ffff80000decbac0 [ 416.131533][ T4432] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 416.133581][ T4432] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffbbe000 [ 416.135655][ T4432] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 416.137720][ T4432] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 416.139828][ T4432] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 416.141910][ T4432] x14: 0000000000000000 x13: 205d323334345420 x12: ffff80000d194000 [ 416.143956][ T4432] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 3beee97198a64c00 [ 416.146036][ T4432] x8 : 3beee97198a64c00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 416.148045][ T4432] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 416.150128][ T4432] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 416.152179][ T4432] Call trace: [ 416.153016][ T4432] kernfs_remove_by_name_ns+0xb4/0x110 [ 416.154494][ T4432] sysfs_remove_group+0x68/0x160 [ 416.155737][ T4432] sysfs_remove_groups+0x3c/0x78 [ 416.157031][ T4432] __kobject_del+0x34/0x134 [ 416.158168][ T4432] kobject_del+0x2c/0x4c [ 416.159110][ T4432] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 416.160566][ T4432] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 416.162025][ T4432] nbd_start_device+0xc4/0x510 [ 416.163316][ T4432] nbd_ioctl+0x228/0x66c [ 416.164422][ T4432] blkdev_ioctl+0x218/0x664 [ 416.165544][ T4432] __arm64_sys_ioctl+0xd0/0x148 [ 416.166761][ T4432] invoke_syscall+0x64/0x178 [ 416.167947][ T4432] el0_svc_common+0xb8/0x174 [ 416.169169][ T4432] do_el0_svc+0x48/0x174 [ 416.170318][ T4432] el0_svc+0x34/0x110 [ 416.171313][ T4432] el0t_64_sync_handler+0x84/0xf0 [ 416.172603][ T4432] el0t_64_sync+0x18c/0x190 [ 416.173756][ T4432] ---[ end trace 0000000000000000 ]--- [ 416.175225][ T4432] ------------[ cut here ]------------ [ 416.176597][ T4432] kernfs: can not remove 'nr_reserved_tags', no directory [ 416.178457][ T4432] WARNING: CPU: 1 PID: 4432 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 416.181023][ T4432] Modules linked in: [ 416.181953][ T4432] CPU: 1 PID: 4432 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.184517][ T4432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.187139][ T4432] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 416.189148][ T4432] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 416.190724][ T4432] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 416.192220][ T4432] sp : ffff80000decbac0 [ 416.193308][ T4432] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 416.195316][ T4432] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffbbe000 [ 416.197418][ T4432] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 416.199408][ T4432] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 416.201523][ T4432] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 416.203624][ T4432] x14: 0000000000000000 x13: 205d323334345420 x12: ffff80000d194000 [ 416.205719][ T4432] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 3beee97198a64c00 [ 416.207804][ T4432] x8 : 3beee97198a64c00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 416.209925][ T4432] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 416.211935][ T4432] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 416.213987][ T4432] Call trace: [ 416.214853][ T4432] kernfs_remove_by_name_ns+0xb4/0x110 [ 416.216224][ T4432] sysfs_remove_group+0x68/0x160 [ 416.217511][ T4432] sysfs_remove_groups+0x3c/0x78 [ 416.218800][ T4432] __kobject_del+0x34/0x134 [ 416.220018][ T4432] kobject_del+0x2c/0x4c [ 416.221129][ T4432] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 416.222725][ T4432] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 416.224195][ T4432] nbd_start_device+0xc4/0x510 [ 416.225423][ T4432] nbd_ioctl+0x228/0x66c [ 416.226516][ T4432] blkdev_ioctl+0x218/0x664 [ 416.227761][ T4432] __arm64_sys_ioctl+0xd0/0x148 [ 416.228999][ T4432] invoke_syscall+0x64/0x178 [ 416.230166][ T4432] el0_svc_common+0xb8/0x174 [ 416.231341][ T4432] do_el0_svc+0x48/0x174 [ 416.232453][ T4432] el0_svc+0x34/0x110 [ 416.233512][ T4432] el0t_64_sync_handler+0x84/0xf0 [ 416.234815][ T4432] el0t_64_sync+0x18c/0x190 [ 416.236005][ T4432] ---[ end trace 0000000000000000 ]--- [ 416.237563][ T4432] ------------[ cut here ]------------ [ 416.238960][ T4432] kernfs: can not remove 'cpu_list', no directory [ 416.240667][ T4432] WARNING: CPU: 1 PID: 4432 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 416.243219][ T4432] Modules linked in: [ 416.244200][ T4432] CPU: 1 PID: 4432 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.246759][ T4432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.249421][ T4432] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 416.251472][ T4432] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 416.252980][ T4432] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 416.254495][ T4432] sp : ffff80000decbac0 [ 416.255610][ T4432] x29: ffff80000decbac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 416.257719][ T4432] x26: ffff0000c5891108 x25: ffff80000decbbe8 x24: ffff0001ffbbe000 [ 416.259890][ T4432] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 416.261976][ T4432] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 416.264080][ T4432] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 416.266168][ T4432] x14: 0000000000000000 x13: 205d323334345420 x12: ffff80000d194000 [ 416.268278][ T4432] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 3beee97198a64c00 [ 416.270423][ T4432] x8 : 3beee97198a64c00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 416.272498][ T4432] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 416.274520][ T4432] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 416.276576][ T4432] Call trace: [ 416.277389][ T4432] kernfs_remove_by_name_ns+0xb4/0x110 [ 416.278775][ T4432] sysfs_remove_group+0x68/0x160 [ 416.280046][ T4432] sysfs_remove_groups+0x3c/0x78 [ 416.281317][ T4432] __kobject_del+0x34/0x134 [ 416.282447][ T4432] kobject_del+0x2c/0x4c [ 416.283567][ T4432] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 416.285137][ T4432] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 416.286675][ T4432] nbd_start_device+0xc4/0x510 [ 416.287950][ T4432] nbd_ioctl+0x228/0x66c [ 416.289068][ T4432] blkdev_ioctl+0x218/0x664 [ 416.290238][ T4432] __arm64_sys_ioctl+0xd0/0x148 [ 416.291500][ T4432] invoke_syscall+0x64/0x178 [ 416.292683][ T4432] el0_svc_common+0xb8/0x174 [ 416.293945][ T4432] do_el0_svc+0x48/0x174 [ 416.295031][ T4432] el0_svc+0x34/0x110 [ 416.296038][ T4432] el0t_64_sync_handler+0x84/0xf0 [ 416.297238][ T4432] el0t_64_sync+0x18c/0x190 [ 416.298526][ T4432] ---[ end trace 0000000000000000 ]--- [ 416.302308][ T4432] block nbd0: shutting down sockets [ 416.432090][ T4435] block nbd0: Device being setup by another task [ 416.473686][ T4434] FAULT_INJECTION: forcing a failure. [ 416.473686][ T4434] name failslab, interval 1, probability 0, space 0, times 0 [ 416.477045][ T4434] CPU: 0 PID: 4434 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.479580][ T4434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.482146][ T4434] Call trace: [ 416.482990][ T4434] dump_backtrace+0x1c8/0x1f4 [ 416.484198][ T4434] show_stack+0x2c/0x3c [ 416.485302][ T4434] dump_stack_lvl+0xc0/0x104 [ 416.486538][ T4434] dump_stack+0x1c/0x4c [ 416.487593][ T4434] should_fail_ex+0x1bc/0x1e0 [ 416.488813][ T4434] __should_failslab+0x64/0x78 [ 416.490064][ T4434] should_failslab+0x10/0x28 [ 416.491226][ T4434] __kmem_cache_alloc_node+0x6c/0x348 [ 416.492595][ T4434] __kmalloc_node_track_caller+0x84/0xc0 [ 416.494033][ T4434] kstrdup_const+0x90/0xdc [ 416.495182][ T4434] __kernfs_new_node+0x5c/0x2e8 [ 416.496437][ T4434] kernfs_create_dir_ns+0xac/0x188 [ 416.497768][ T4434] sysfs_create_dir_ns+0x8c/0x168 [ 416.499014][ T4434] kobject_add_internal+0x314/0x64c [ 416.500313][ T4434] kobject_add+0xb8/0x130 [ 416.501509][ T4434] blk_mq_register_hctx+0x54/0x184 [ 416.502798][ T4434] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 416.504271][ T4434] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 416.505775][ T4434] nbd_start_device+0xc4/0x510 [ 416.506978][ T4434] nbd_ioctl+0x228/0x66c [ 416.508077][ T4434] blkdev_ioctl+0x218/0x664 [ 416.509254][ T4434] __arm64_sys_ioctl+0xd0/0x148 [ 416.510575][ T4434] invoke_syscall+0x64/0x178 [ 416.511782][ T4434] el0_svc_common+0xb8/0x174 [ 416.512996][ T4434] do_el0_svc+0x48/0x174 [ 416.514073][ T4434] el0_svc+0x34/0x110 [ 416.515125][ T4434] el0t_64_sync_handler+0x84/0xf0 [ 416.516402][ T4434] el0t_64_sync+0x18c/0x190 [ 416.517640][ T4434] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 416.574049][ T4434] block nbd0: shutting down sockets [ 416.702107][ T4438] block nbd0: Device being setup by another task [ 416.704003][ T4437] FAULT_INJECTION: forcing a failure. [ 416.704003][ T4437] name failslab, interval 1, probability 0, space 0, times 0 [ 416.707250][ T4437] CPU: 0 PID: 4437 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.709772][ T4437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.712293][ T4437] Call trace: [ 416.713095][ T4437] dump_backtrace+0x1c8/0x1f4 [ 416.714261][ T4437] show_stack+0x2c/0x3c [ 416.715364][ T4437] dump_stack_lvl+0xc0/0x104 [ 416.716581][ T4437] dump_stack+0x1c/0x4c [ 416.717689][ T4437] should_fail_ex+0x1bc/0x1e0 [ 416.718877][ T4437] __should_failslab+0x64/0x78 [ 416.720134][ T4437] should_failslab+0x10/0x28 [ 416.721327][ T4437] slab_pre_alloc_hook+0x54/0x1f4 [ 416.722602][ T4437] kmem_cache_alloc_lru+0x60/0x2ac [ 416.723951][ T4437] alloc_inode+0x7c/0x104 [ 416.725056][ T4437] new_inode+0x2c/0xc0 [ 416.726130][ T4437] debugfs_create_dir+0x98/0x1e0 [ 416.727416][ T4437] nbd_start_device+0x1b4/0x510 [ 416.728667][ T4437] nbd_ioctl+0x228/0x66c [ 416.729766][ T4437] blkdev_ioctl+0x218/0x664 [ 416.730908][ T4437] __arm64_sys_ioctl+0xd0/0x148 [ 416.732163][ T4437] invoke_syscall+0x64/0x178 [ 416.733371][ T4437] el0_svc_common+0xb8/0x174 [ 416.734506][ T4437] do_el0_svc+0x48/0x174 [ 416.735528][ T4437] el0_svc+0x34/0x110 [ 416.736591][ T4437] el0t_64_sync_handler+0x84/0xf0 [ 416.737878][ T4437] el0t_64_sync+0x18c/0x190 [ 416.739097][ T4437] debugfs: out of free dentries, can not create directory 'nbd0' [ 416.741101][ T4437] block nbd0: Failed to create debugfs dir for 'nbd0' [ 416.842648][ T4437] block nbd0: shutting down sockets [ 416.953454][ T4440] ------------[ cut here ]------------ [ 416.955011][ T4440] kernfs: can not remove 'nr_tags', no directory [ 416.956702][ T4440] WARNING: CPU: 0 PID: 4440 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 416.959187][ T4440] Modules linked in: [ 416.960179][ T4440] CPU: 0 PID: 4440 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 416.962790][ T4440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 416.965484][ T4440] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 416.967576][ T4440] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 416.969046][ T4440] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 416.970687][ T4440] sp : ffff80000dfd3ac0 [ 416.971748][ T4440] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 416.973816][ T4440] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0000c7877380 [ 416.975962][ T4440] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 416.978066][ T4440] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 416.980110][ T4440] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 416.982190][ T4440] x14: 0000000000000000 x13: 205d303434345420 x12: ffff80000d194000 [ 416.984243][ T4440] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2e8763966470c100 [ 416.986303][ T4440] x8 : 2e8763966470c100 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 416.988343][ T4440] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 416.990335][ T4440] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 416.992406][ T4440] Call trace: [ 416.993284][ T4440] kernfs_remove_by_name_ns+0xb4/0x110 [ 416.994710][ T4440] sysfs_remove_group+0x68/0x160 [ 416.996010][ T4440] sysfs_remove_groups+0x3c/0x78 [ 416.997303][ T4440] __kobject_del+0x34/0x134 [ 416.998461][ T4440] kobject_del+0x2c/0x4c [ 416.999594][ T4440] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 417.001125][ T4440] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 417.002702][ T4440] nbd_start_device+0xc4/0x510 [ 417.003910][ T4440] nbd_ioctl+0x228/0x66c [ 417.005010][ T4440] blkdev_ioctl+0x218/0x664 [ 417.006132][ T4440] __arm64_sys_ioctl+0xd0/0x148 [ 417.007365][ T4440] invoke_syscall+0x64/0x178 [ 417.008586][ T4440] el0_svc_common+0xb8/0x174 [ 417.009764][ T4440] do_el0_svc+0x48/0x174 [ 417.010898][ T4440] el0_svc+0x34/0x110 [ 417.011962][ T4440] el0t_64_sync_handler+0x84/0xf0 [ 417.013313][ T4440] el0t_64_sync+0x18c/0x190 [ 417.014535][ T4440] ---[ end trace 0000000000000000 ]--- [ 417.015999][ T4440] ------------[ cut here ]------------ [ 417.017444][ T4440] kernfs: can not remove 'nr_reserved_tags', no directory [ 417.019313][ T4440] WARNING: CPU: 0 PID: 4440 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 417.021840][ T4440] Modules linked in: [ 417.022844][ T4440] CPU: 0 PID: 4440 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.025470][ T4440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.028127][ T4440] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 417.030261][ T4440] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 417.031766][ T4440] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 417.033167][ T4440] sp : ffff80000dfd3ac0 [ 417.034264][ T4440] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 417.036369][ T4440] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0000c7877380 [ 417.038362][ T4440] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 417.040389][ T4440] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 417.042416][ T4440] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 417.044518][ T4440] x14: 0000000000000000 x13: 205d303434345420 x12: ffff80000d194000 [ 417.046617][ T4440] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2e8763966470c100 [ 417.048756][ T4440] x8 : 2e8763966470c100 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 417.050789][ T4440] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 417.052865][ T4440] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 417.054949][ T4440] Call trace: [ 417.055837][ T4440] kernfs_remove_by_name_ns+0xb4/0x110 [ 417.057213][ T4440] sysfs_remove_group+0x68/0x160 [ 417.058520][ T4440] sysfs_remove_groups+0x3c/0x78 [ 417.059800][ T4440] __kobject_del+0x34/0x134 [ 417.061016][ T4440] kobject_del+0x2c/0x4c [ 417.062136][ T4440] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 417.063654][ T4440] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 417.065177][ T4440] nbd_start_device+0xc4/0x510 [ 417.066458][ T4440] nbd_ioctl+0x228/0x66c [ 417.067569][ T4440] blkdev_ioctl+0x218/0x664 [ 417.068736][ T4440] __arm64_sys_ioctl+0xd0/0x148 [ 417.069920][ T4440] invoke_syscall+0x64/0x178 [ 417.071053][ T4440] el0_svc_common+0xb8/0x174 [ 417.072270][ T4440] do_el0_svc+0x48/0x174 [ 417.073410][ T4440] el0_svc+0x34/0x110 [ 417.074455][ T4440] el0t_64_sync_handler+0x84/0xf0 [ 417.075738][ T4440] el0t_64_sync+0x18c/0x190 [ 417.076904][ T4440] ---[ end trace 0000000000000000 ]--- [ 417.078366][ T4440] ------------[ cut here ]------------ [ 417.079728][ T4440] kernfs: can not remove 'cpu_list', no directory [ 417.081429][ T4440] WARNING: CPU: 0 PID: 4440 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 417.083952][ T4440] Modules linked in: [ 417.084958][ T4440] CPU: 0 PID: 4440 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.087457][ T4440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.090111][ T4440] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 417.092031][ T4440] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 417.093518][ T4440] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 417.095033][ T4440] sp : ffff80000dfd3ac0 [ 417.096131][ T4440] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 417.098240][ T4440] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0000c7877380 [ 417.100429][ T4440] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 417.102528][ T4440] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 417.104609][ T4440] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 417.106630][ T4440] x14: 0000000000000000 x13: 205d303434345420 x12: ffff80000d194000 [ 417.108686][ T4440] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 2e8763966470c100 [ 417.110784][ T4440] x8 : 2e8763966470c100 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 417.112960][ T4440] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 417.115061][ T4440] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 417.117157][ T4440] Call trace: [ 417.117986][ T4440] kernfs_remove_by_name_ns+0xb4/0x110 [ 417.119344][ T4440] sysfs_remove_group+0x68/0x160 [ 417.120624][ T4440] sysfs_remove_groups+0x3c/0x78 [ 417.121931][ T4440] __kobject_del+0x34/0x134 [ 417.123102][ T4440] kobject_del+0x2c/0x4c [ 417.124172][ T4440] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 417.125658][ T4440] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 417.127160][ T4440] nbd_start_device+0xc4/0x510 [ 417.128421][ T4440] nbd_ioctl+0x228/0x66c [ 417.129520][ T4440] blkdev_ioctl+0x218/0x664 [ 417.130658][ T4440] __arm64_sys_ioctl+0xd0/0x148 [ 417.131899][ T4440] invoke_syscall+0x64/0x178 [ 417.133098][ T4440] el0_svc_common+0xb8/0x174 [ 417.134268][ T4440] do_el0_svc+0x48/0x174 [ 417.135361][ T4440] el0_svc+0x34/0x110 [ 417.136402][ T4440] el0t_64_sync_handler+0x84/0xf0 [ 417.137704][ T4440] el0t_64_sync+0x18c/0x190 [ 417.138893][ T4440] ---[ end trace 0000000000000000 ]--- [ 417.142750][ T4440] block nbd0: shutting down sockets [ 417.262076][ T4443] block nbd0: Device being setup by another task [ 417.313732][ T4442] FAULT_INJECTION: forcing a failure. [ 417.313732][ T4442] name failslab, interval 1, probability 0, space 0, times 0 [ 417.317124][ T4442] CPU: 1 PID: 4442 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.319643][ T4442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.322210][ T4442] Call trace: [ 417.323042][ T4442] dump_backtrace+0x1c8/0x1f4 [ 417.324213][ T4442] show_stack+0x2c/0x3c [ 417.325276][ T4442] dump_stack_lvl+0xc0/0x104 [ 417.326484][ T4442] dump_stack+0x1c/0x4c [ 417.327594][ T4442] should_fail_ex+0x1bc/0x1e0 [ 417.328749][ T4442] __should_failslab+0x64/0x78 [ 417.329952][ T4442] should_failslab+0x10/0x28 [ 417.331120][ T4442] __kmem_cache_alloc_node+0x6c/0x348 [ 417.332465][ T4442] __kmalloc_node_track_caller+0x84/0xc0 [ 417.333938][ T4442] kstrdup_const+0x90/0xdc [ 417.335110][ T4442] __kernfs_new_node+0x5c/0x2e8 [ 417.336339][ T4442] kernfs_create_dir_ns+0xac/0x188 [ 417.337650][ T4442] sysfs_create_dir_ns+0x8c/0x168 [ 417.338969][ T4442] kobject_add_internal+0x314/0x64c [ 417.340327][ T4442] kobject_add+0xb8/0x130 [ 417.341389][ T4442] blk_mq_register_hctx+0x54/0x184 [ 417.342775][ T4442] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 417.344251][ T4442] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 417.345761][ T4442] nbd_start_device+0xc4/0x510 [ 417.346996][ T4442] nbd_ioctl+0x228/0x66c [ 417.348162][ T4442] blkdev_ioctl+0x218/0x664 [ 417.349291][ T4442] __arm64_sys_ioctl+0xd0/0x148 [ 417.350526][ T4442] invoke_syscall+0x64/0x178 [ 417.351733][ T4442] el0_svc_common+0xb8/0x174 [ 417.352965][ T4442] do_el0_svc+0x48/0x174 [ 417.354043][ T4442] el0_svc+0x34/0x110 [ 417.355046][ T4442] el0t_64_sync_handler+0x84/0xf0 [ 417.356359][ T4442] el0t_64_sync+0x18c/0x190 [ 417.357539][ T4442] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 417.414946][ T4442] block nbd0: shutting down sockets [ 417.552098][ T4446] block nbd0: Device being setup by another task [ 417.553888][ T4445] FAULT_INJECTION: forcing a failure. [ 417.553888][ T4445] name failslab, interval 1, probability 0, space 0, times 0 [ 417.557246][ T4445] CPU: 0 PID: 4445 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.559922][ T4445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.562483][ T4445] Call trace: [ 417.563324][ T4445] dump_backtrace+0x1c8/0x1f4 [ 417.564515][ T4445] show_stack+0x2c/0x3c [ 417.565588][ T4445] dump_stack_lvl+0xc0/0x104 [ 417.566737][ T4445] dump_stack+0x1c/0x4c [ 417.567807][ T4445] should_fail_ex+0x1bc/0x1e0 [ 417.569106][ T4445] __should_failslab+0x64/0x78 [ 417.570324][ T4445] should_failslab+0x10/0x28 [ 417.571515][ T4445] slab_pre_alloc_hook+0x54/0x1f4 [ 417.572821][ T4445] kmem_cache_alloc_lru+0x60/0x2ac [ 417.574216][ T4445] alloc_inode+0x7c/0x104 [ 417.575461][ T4445] new_inode+0x2c/0xc0 [ 417.576560][ T4445] debugfs_create_dir+0x98/0x1e0 [ 417.577786][ T4445] nbd_start_device+0x1b4/0x510 [ 417.579098][ T4445] nbd_ioctl+0x228/0x66c [ 417.580181][ T4445] blkdev_ioctl+0x218/0x664 [ 417.581346][ T4445] __arm64_sys_ioctl+0xd0/0x148 [ 417.582560][ T4445] invoke_syscall+0x64/0x178 [ 417.583742][ T4445] el0_svc_common+0xb8/0x174 [ 417.584923][ T4445] do_el0_svc+0x48/0x174 [ 417.586056][ T4445] el0_svc+0x34/0x110 [ 417.587108][ T4445] el0t_64_sync_handler+0x84/0xf0 [ 417.588404][ T4445] el0t_64_sync+0x18c/0x190 [ 417.589672][ T4445] debugfs: out of free dentries, can not create directory 'nbd0' [ 417.591638][ T4445] block nbd0: Failed to create debugfs dir for 'nbd0' [ 417.683297][ T4445] block nbd0: shutting down sockets [ 417.833536][ T4448] ------------[ cut here ]------------ [ 417.835134][ T4448] kernfs: can not remove 'nr_tags', no directory [ 417.836799][ T4448] WARNING: CPU: 1 PID: 4448 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 417.839276][ T4448] Modules linked in: [ 417.840235][ T4448] CPU: 1 PID: 4448 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.842844][ T4448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.845477][ T4448] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 417.847523][ T4448] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 417.849046][ T4448] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 417.850598][ T4448] sp : ffff80000dfabac0 [ 417.851626][ T4448] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 417.853660][ T4448] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffbd8000 [ 417.855745][ T4448] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 417.857811][ T4448] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 417.859865][ T4448] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 417.861966][ T4448] x14: 0000000000000000 x13: 205d383434345420 x12: ffff80000d194000 [ 417.864015][ T4448] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 45093a8c1a391200 [ 417.866076][ T4448] x8 : 45093a8c1a391200 x7 : 0000000000000000 x6 : ffff80000ae14b50 [ 417.868173][ T4448] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9f4ea8 [ 417.870232][ T4448] x2 : ffff0001fe9f4ea8 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 417.872393][ T4448] Call trace: [ 417.873304][ T4448] kernfs_remove_by_name_ns+0xb4/0x110 [ 417.874722][ T4448] sysfs_remove_group+0x68/0x160 [ 417.876007][ T4448] sysfs_remove_groups+0x3c/0x78 [ 417.877278][ T4448] __kobject_del+0x34/0x134 [ 417.878437][ T4448] kobject_del+0x2c/0x4c [ 417.879573][ T4448] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 417.881084][ T4448] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 417.882527][ T4448] nbd_start_device+0xc4/0x510 [ 417.883852][ T4448] nbd_ioctl+0x228/0x66c [ 417.884955][ T4448] blkdev_ioctl+0x218/0x664 [ 417.886151][ T4448] __arm64_sys_ioctl+0xd0/0x148 [ 417.887367][ T4448] invoke_syscall+0x64/0x178 [ 417.888552][ T4448] el0_svc_common+0xb8/0x174 [ 417.889733][ T4448] do_el0_svc+0x48/0x174 [ 417.890758][ T4448] el0_svc+0x34/0x110 [ 417.891819][ T4448] el0t_64_sync_handler+0x84/0xf0 [ 417.893079][ T4448] el0t_64_sync+0x18c/0x190 [ 417.894332][ T4448] ---[ end trace 0000000000000000 ]--- [ 417.895783][ T4448] ------------[ cut here ]------------ [ 417.897196][ T4448] kernfs: can not remove 'nr_reserved_tags', no directory [ 417.899085][ T4448] WARNING: CPU: 1 PID: 4448 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 417.901576][ T4448] Modules linked in: [ 417.902598][ T4448] CPU: 1 PID: 4448 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.905149][ T4448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.907826][ T4448] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 417.909775][ T4448] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 417.911267][ T4448] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 417.912708][ T4448] sp : ffff80000dfabac0 [ 417.913749][ T4448] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 417.915823][ T4448] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffbd8000 [ 417.917825][ T4448] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 417.919900][ T4448] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 417.921933][ T4448] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 417.924003][ T4448] x14: 0000000000000000 x13: 205d383434345420 x12: ffff80000d194000 [ 417.926043][ T4448] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 45093a8c1a391200 [ 417.928171][ T4448] x8 : 45093a8c1a391200 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 417.930219][ T4448] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 417.932212][ T4448] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 417.934278][ T4448] Call trace: [ 417.935135][ T4448] kernfs_remove_by_name_ns+0xb4/0x110 [ 417.936581][ T4448] sysfs_remove_group+0x68/0x160 [ 417.937886][ T4448] sysfs_remove_groups+0x3c/0x78 [ 417.939213][ T4448] __kobject_del+0x34/0x134 [ 417.940375][ T4448] kobject_del+0x2c/0x4c [ 417.941482][ T4448] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 417.943099][ T4448] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 417.944612][ T4448] nbd_start_device+0xc4/0x510 [ 417.945847][ T4448] nbd_ioctl+0x228/0x66c [ 417.946949][ T4448] blkdev_ioctl+0x218/0x664 [ 417.948164][ T4448] __arm64_sys_ioctl+0xd0/0x148 [ 417.949450][ T4448] invoke_syscall+0x64/0x178 [ 417.950653][ T4448] el0_svc_common+0xb8/0x174 [ 417.951831][ T4448] do_el0_svc+0x48/0x174 [ 417.952893][ T4448] el0_svc+0x34/0x110 [ 417.953951][ T4448] el0t_64_sync_handler+0x84/0xf0 [ 417.955281][ T4448] el0t_64_sync+0x18c/0x190 [ 417.956442][ T4448] ---[ end trace 0000000000000000 ]--- [ 417.957920][ T4448] ------------[ cut here ]------------ [ 417.959276][ T4448] kernfs: can not remove 'cpu_list', no directory [ 417.960994][ T4448] WARNING: CPU: 1 PID: 4448 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 417.963579][ T4448] Modules linked in: [ 417.964627][ T4448] CPU: 1 PID: 4448 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 417.967202][ T4448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 417.969793][ T4448] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 417.971866][ T4448] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 417.973397][ T4448] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 417.974928][ T4448] sp : ffff80000dfabac0 [ 417.976005][ T4448] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 417.978012][ T4448] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffbd8000 [ 417.980085][ T4448] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 417.982210][ T4448] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 417.984324][ T4448] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 417.986491][ T4448] x14: 0000000000000000 x13: 205d383434345420 x12: ffff80000d194000 [ 417.988617][ T4448] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 45093a8c1a391200 [ 417.990734][ T4448] x8 : 45093a8c1a391200 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 417.992827][ T4448] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 417.994948][ T4448] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 417.997029][ T4448] Call trace: [ 417.997870][ T4448] kernfs_remove_by_name_ns+0xb4/0x110 [ 417.999342][ T4448] sysfs_remove_group+0x68/0x160 [ 418.000639][ T4448] sysfs_remove_groups+0x3c/0x78 [ 418.001943][ T4448] __kobject_del+0x34/0x134 [ 418.003096][ T4448] kobject_del+0x2c/0x4c [ 418.004247][ T4448] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 418.005842][ T4448] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 418.007323][ T4448] nbd_start_device+0xc4/0x510 [ 418.008586][ T4448] nbd_ioctl+0x228/0x66c [ 418.009714][ T4448] blkdev_ioctl+0x218/0x664 [ 418.010901][ T4448] __arm64_sys_ioctl+0xd0/0x148 [ 418.012184][ T4448] invoke_syscall+0x64/0x178 [ 418.013382][ T4448] el0_svc_common+0xb8/0x174 [ 418.014625][ T4448] do_el0_svc+0x48/0x174 [ 418.015742][ T4448] el0_svc+0x34/0x110 [ 418.016788][ T4448] el0t_64_sync_handler+0x84/0xf0 [ 418.018125][ T4448] el0t_64_sync+0x18c/0x190 [ 418.019110][ T4448] ---[ end trace 0000000000000000 ]--- [ 418.022574][ T4448] block nbd0: shutting down sockets [ 418.142133][ T4451] block nbd0: Device being setup by another task [ 418.183570][ T4450] FAULT_INJECTION: forcing a failure. [ 418.183570][ T4450] name failslab, interval 1, probability 0, space 0, times 0 [ 418.186870][ T4450] CPU: 0 PID: 4450 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 418.189574][ T4450] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 418.192303][ T4450] Call trace: [ 418.193133][ T4450] dump_backtrace+0x1c8/0x1f4 [ 418.194368][ T4450] show_stack+0x2c/0x3c [ 418.195473][ T4450] dump_stack_lvl+0xc0/0x104 [ 418.196626][ T4450] dump_stack+0x1c/0x4c [ 418.197725][ T4450] should_fail_ex+0x1bc/0x1e0 [ 418.198914][ T4450] __should_failslab+0x64/0x78 [ 418.200148][ T4450] should_failslab+0x10/0x28 [ 418.201323][ T4450] __kmem_cache_alloc_node+0x6c/0x348 [ 418.202655][ T4450] __kmalloc_node_track_caller+0x84/0xc0 [ 418.204171][ T4450] kstrdup_const+0x90/0xdc [ 418.205335][ T4450] __kernfs_new_node+0x5c/0x2e8 [ 418.206622][ T4450] kernfs_create_dir_ns+0xac/0x188 [ 418.208039][ T4450] sysfs_create_dir_ns+0x8c/0x168 [ 418.209389][ T4450] kobject_add_internal+0x314/0x64c [ 418.210808][ T4450] kobject_add+0xb8/0x130 [ 418.211989][ T4450] blk_mq_register_hctx+0x54/0x184 [ 418.213374][ T4450] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 418.214827][ T4450] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 418.216290][ T4450] nbd_start_device+0xc4/0x510 [ 418.217511][ T4450] nbd_ioctl+0x228/0x66c [ 418.218646][ T4450] blkdev_ioctl+0x218/0x664 [ 418.219815][ T4450] __arm64_sys_ioctl+0xd0/0x148 [ 418.221139][ T4450] invoke_syscall+0x64/0x178 [ 418.222327][ T4450] el0_svc_common+0xb8/0x174 [ 418.223537][ T4450] do_el0_svc+0x48/0x174 [ 418.224612][ T4450] el0_svc+0x34/0x110 [ 418.225687][ T4450] el0t_64_sync_handler+0x84/0xf0 [ 418.226999][ T4450] el0t_64_sync+0x18c/0x190 [ 418.228256][ T4450] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 418.290424][ T4450] block nbd0: shutting down sockets [ 418.412079][ T4454] block nbd0: Device being setup by another task [ 418.413778][ T4453] FAULT_INJECTION: forcing a failure. [ 418.413778][ T4453] name failslab, interval 1, probability 0, space 0, times 0 [ 418.417290][ T4453] CPU: 1 PID: 4453 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 418.419865][ T4453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 418.422581][ T4453] Call trace: [ 418.423446][ T4453] dump_backtrace+0x1c8/0x1f4 [ 418.424685][ T4453] show_stack+0x2c/0x3c [ 418.425761][ T4453] dump_stack_lvl+0xc0/0x104 [ 418.426995][ T4453] dump_stack+0x1c/0x4c [ 418.428122][ T4453] should_fail_ex+0x1bc/0x1e0 [ 418.429370][ T4453] __should_failslab+0x64/0x78 [ 418.430592][ T4453] should_failslab+0x10/0x28 [ 418.431843][ T4453] slab_pre_alloc_hook+0x54/0x1f4 [ 418.433129][ T4453] kmem_cache_alloc_lru+0x60/0x2ac [ 418.434484][ T4453] alloc_inode+0x7c/0x104 [ 418.435576][ T4453] new_inode+0x2c/0xc0 [ 418.436650][ T4453] debugfs_create_dir+0x98/0x1e0 [ 418.437887][ T4453] nbd_start_device+0x1b4/0x510 [ 418.439134][ T4453] nbd_ioctl+0x228/0x66c [ 418.440269][ T4453] blkdev_ioctl+0x218/0x664 [ 418.441443][ T4453] __arm64_sys_ioctl+0xd0/0x148 [ 418.442706][ T4453] invoke_syscall+0x64/0x178 [ 418.443890][ T4453] el0_svc_common+0xb8/0x174 [ 418.445106][ T4453] do_el0_svc+0x48/0x174 [ 418.446197][ T4453] el0_svc+0x34/0x110 [ 418.447168][ T4453] el0t_64_sync_handler+0x84/0xf0 [ 418.448447][ T4453] el0t_64_sync+0x18c/0x190 [ 418.449710][ T4453] debugfs: out of free dentries, can not create directory 'nbd0' [ 418.451721][ T4453] block nbd0: Failed to create debugfs dir for 'nbd0' [ 418.559069][ T4453] block nbd0: shutting down sockets [ 418.743360][ T4457] ------------[ cut here ]------------ [ 418.744823][ T4457] kernfs: can not remove 'nr_tags', no directory [ 418.746451][ T4457] WARNING: CPU: 0 PID: 4457 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 418.748968][ T4457] Modules linked in: [ 418.749962][ T4457] CPU: 0 PID: 4457 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 418.752468][ T4457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 418.755112][ T4457] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 418.757108][ T4457] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 418.758568][ T4457] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 418.760085][ T4457] sp : ffff80000dfe3ac0 [ 418.761149][ T4457] x29: ffff80000dfe3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 418.763210][ T4457] x26: ffff0000c5891108 x25: ffff80000dfe3be8 x24: ffff0000c5732680 [ 418.765239][ T4457] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 418.767322][ T4457] x20: 00000000fffffffe x19: 0000000000000000 x18: ffff80000ae5d2cc [ 418.769427][ T4457] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 418.771427][ T4457] x14: 0000000000000000 x13: 205d373534345420 x12: ffff80000d194000 [ 418.773611][ T4457] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 318ad31ab4a28f00 [ 418.775673][ T4457] x8 : 318ad31ab4a28f00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 418.777706][ T4457] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 418.779736][ T4457] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 418.781849][ T4457] Call trace: [ 418.782655][ T4457] kernfs_remove_by_name_ns+0xb4/0x110 [ 418.784044][ T4457] sysfs_remove_group+0x68/0x160 [ 418.785342][ T4457] sysfs_remove_groups+0x3c/0x78 [ 418.786597][ T4457] __kobject_del+0x34/0x134 [ 418.787809][ T4457] kobject_del+0x2c/0x4c [ 418.788882][ T4457] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 418.790373][ T4457] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 418.791850][ T4457] nbd_start_device+0xc4/0x510 [ 418.793038][ T4457] nbd_ioctl+0x228/0x66c [ 418.794152][ T4457] blkdev_ioctl+0x218/0x664 [ 418.795414][ T4457] __arm64_sys_ioctl+0xd0/0x148 [ 418.796665][ T4457] invoke_syscall+0x64/0x178 [ 418.797831][ T4457] el0_svc_common+0xb8/0x174 [ 418.798978][ T4457] do_el0_svc+0x48/0x174 [ 418.800106][ T4457] el0_svc+0x34/0x110 [ 418.801116][ T4457] el0t_64_sync_handler+0x84/0xf0 [ 418.802425][ T4457] el0t_64_sync+0x18c/0x190 [ 418.803616][ T4457] ---[ end trace 0000000000000000 ]--- [ 418.805062][ T4457] ------------[ cut here ]------------ [ 418.806484][ T4457] kernfs: can not remove 'nr_reserved_tags', no directory [ 418.808306][ T4457] WARNING: CPU: 0 PID: 4457 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 418.810757][ T4457] Modules linked in: [ 418.811749][ T4457] CPU: 0 PID: 4457 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 418.814368][ T4457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 418.816991][ T4457] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 418.819046][ T4457] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 418.820575][ T4457] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 418.822062][ T4457] sp : ffff80000dfe3ac0 [ 418.823126][ T4457] x29: ffff80000dfe3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 418.825238][ T4457] x26: ffff0000c5891108 x25: ffff80000dfe3be8 x24: ffff0000c5732680 [ 418.827360][ T4457] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 418.829521][ T4457] x20: 00000000fffffffe x19: 0000000000000000 x18: ffff80000ae5d2cc [ 418.831646][ T4457] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 418.833658][ T4457] x14: 0000000000000000 x13: 205d373534345420 x12: ffff80000d194000 [ 418.835839][ T4457] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 318ad31ab4a28f00 [ 418.837916][ T4457] x8 : 318ad31ab4a28f00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 418.840008][ T4457] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 418.842096][ T4457] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 418.844201][ T4457] Call trace: [ 418.845056][ T4457] kernfs_remove_by_name_ns+0xb4/0x110 [ 418.846513][ T4457] sysfs_remove_group+0x68/0x160 [ 418.847778][ T4457] sysfs_remove_groups+0x3c/0x78 [ 418.849120][ T4457] __kobject_del+0x34/0x134 [ 418.850317][ T4457] kobject_del+0x2c/0x4c [ 418.851427][ T4457] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 418.852925][ T4457] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 418.854457][ T4457] nbd_start_device+0xc4/0x510 [ 418.855699][ T4457] nbd_ioctl+0x228/0x66c [ 418.856794][ T4457] blkdev_ioctl+0x218/0x664 [ 418.858003][ T4457] __arm64_sys_ioctl+0xd0/0x148 [ 418.859288][ T4457] invoke_syscall+0x64/0x178 [ 418.860467][ T4457] el0_svc_common+0xb8/0x174 [ 418.861612][ T4457] do_el0_svc+0x48/0x174 [ 418.862693][ T4457] el0_svc+0x34/0x110 [ 418.863712][ T4457] el0t_64_sync_handler+0x84/0xf0 [ 418.864934][ T4457] el0t_64_sync+0x18c/0x190 [ 418.866098][ T4457] ---[ end trace 0000000000000000 ]--- [ 418.867630][ T4457] ------------[ cut here ]------------ [ 418.869073][ T4457] kernfs: can not remove 'cpu_list', no directory [ 418.870699][ T4457] WARNING: CPU: 0 PID: 4457 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 418.873245][ T4457] Modules linked in: [ 418.874191][ T4457] CPU: 0 PID: 4457 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 418.876821][ T4457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 418.879414][ T4457] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 418.881458][ T4457] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 418.882956][ T4457] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 418.884433][ T4457] sp : ffff80000dfe3ac0 [ 418.885491][ T4457] x29: ffff80000dfe3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 418.887602][ T4457] x26: ffff0000c5891108 x25: ffff80000dfe3be8 x24: ffff0000c5732680 [ 418.889694][ T4457] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 418.891756][ T4457] x20: 00000000fffffffe x19: 0000000000000000 x18: ffff80000ae5d2cc [ 418.893900][ T4457] x17: ffff80000d3d0688 x16: 0000000000001178 x15: 0000000000000000 [ 418.895983][ T4457] x14: 0000000000000000 x13: 205d373534345420 x12: ffff80000d194000 [ 418.898027][ T4457] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 318ad31ab4a28f00 [ 418.900121][ T4457] x8 : 318ad31ab4a28f00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 418.902199][ T4457] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 418.904318][ T4457] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 418.906404][ T4457] Call trace: [ 418.907248][ T4457] kernfs_remove_by_name_ns+0xb4/0x110 [ 418.908677][ T4457] sysfs_remove_group+0x68/0x160 [ 418.909926][ T4457] sysfs_remove_groups+0x3c/0x78 [ 418.911283][ T4457] __kobject_del+0x34/0x134 [ 418.912427][ T4457] kobject_del+0x2c/0x4c [ 418.913522][ T4457] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 418.915100][ T4457] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 418.916523][ T4457] nbd_start_device+0xc4/0x510 [ 418.917772][ T4457] nbd_ioctl+0x228/0x66c [ 418.918882][ T4457] blkdev_ioctl+0x218/0x664 [ 418.920045][ T4457] __arm64_sys_ioctl+0xd0/0x148 [ 418.921367][ T4457] invoke_syscall+0x64/0x178 [ 418.922578][ T4457] el0_svc_common+0xb8/0x174 [ 418.923769][ T4457] do_el0_svc+0x48/0x174 [ 418.924841][ T4457] el0_svc+0x34/0x110 [ 418.925892][ T4457] el0t_64_sync_handler+0x84/0xf0 [ 418.927259][ T4457] el0t_64_sync+0x18c/0x190 [ 418.928441][ T4457] ---[ end trace 0000000000000000 ]--- [ 418.932145][ T4457] block nbd0: shutting down sockets [ 419.022300][ T4459] FAULT_INJECTION: forcing a failure. [ 419.022300][ T4459] name failslab, interval 1, probability 0, space 0, times 0 [ 419.025649][ T4459] CPU: 0 PID: 4459 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 419.028237][ T4459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 419.030851][ T4459] Call trace: [ 419.031623][ T4459] dump_backtrace+0x1c8/0x1f4 [ 419.032801][ T4459] show_stack+0x2c/0x3c [ 419.033832][ T4459] dump_stack_lvl+0xc0/0x104 [ 419.035022][ T4459] dump_stack+0x1c/0x4c [ 419.036099][ T4459] should_fail_ex+0x1bc/0x1e0 [ 419.037340][ T4459] __should_failslab+0x64/0x78 [ 419.038499][ T4459] should_failslab+0x10/0x28 [ 419.039688][ T4459] slab_pre_alloc_hook+0x54/0x1f4 [ 419.040924][ T4459] kmem_cache_alloc_lru+0x60/0x2ac [ 419.042294][ T4459] alloc_inode+0x7c/0x104 [ 419.043462][ T4459] new_inode+0x2c/0xc0 [ 419.044517][ T4459] debugfs_create_dir+0x98/0x1e0 [ 419.045840][ T4459] nbd_start_device+0x1b4/0x510 [ 419.047110][ T4459] nbd_ioctl+0x228/0x66c [ 419.048202][ T4459] blkdev_ioctl+0x218/0x664 [ 419.049383][ T4459] __arm64_sys_ioctl+0xd0/0x148 [ 419.050653][ T4459] invoke_syscall+0x64/0x178 [ 419.051879][ T4459] el0_svc_common+0xb8/0x174 [ 419.053070][ T4459] do_el0_svc+0x48/0x174 [ 419.054173][ T4459] el0_svc+0x34/0x110 [ 419.055202][ T4459] el0t_64_sync_handler+0x84/0xf0 [ 419.056488][ T4459] el0t_64_sync+0x18c/0x190 [ 419.057655][ T4459] debugfs: out of free dentries, can not create directory 'nbd0' [ 419.059607][ T4459] block nbd0: Failed to create debugfs dir for 'nbd0' [ 419.180020][ T4459] block nbd0: shutting down sockets [ 419.302088][ T4462] block nbd0: Device being setup by another task [ 419.344326][ T4461] FAULT_INJECTION: forcing a failure. [ 419.344326][ T4461] name failslab, interval 1, probability 0, space 0, times 0 [ 419.347622][ T4461] CPU: 1 PID: 4461 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 419.350139][ T4461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 419.352728][ T4461] Call trace: [ 419.353543][ T4461] dump_backtrace+0x1c8/0x1f4 [ 419.354747][ T4461] show_stack+0x2c/0x3c [ 419.355801][ T4461] dump_stack_lvl+0xc0/0x104 [ 419.356936][ T4461] dump_stack+0x1c/0x4c [ 419.358178][ T4461] should_fail_ex+0x1bc/0x1e0 [ 419.359580][ T4461] __should_failslab+0x64/0x78 [ 419.360819][ T4461] should_failslab+0x10/0x28 [ 419.361983][ T4461] __kmem_cache_alloc_node+0x6c/0x348 [ 419.363387][ T4461] __kmalloc_node_track_caller+0x84/0xc0 [ 419.364860][ T4461] kstrdup_const+0x90/0xdc [ 419.366011][ T4461] __kernfs_new_node+0x5c/0x2e8 [ 419.367232][ T4461] kernfs_create_dir_ns+0xac/0x188 [ 419.368593][ T4461] sysfs_create_dir_ns+0x8c/0x168 [ 419.369939][ T4461] kobject_add_internal+0x314/0x64c [ 419.371219][ T4461] kobject_add+0xb8/0x130 [ 419.372330][ T4461] blk_mq_register_hctx+0x54/0x184 [ 419.373632][ T4461] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 419.375088][ T4461] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 419.376530][ T4461] nbd_start_device+0xc4/0x510 [ 419.377749][ T4461] nbd_ioctl+0x228/0x66c [ 419.378854][ T4461] blkdev_ioctl+0x218/0x664 [ 419.380024][ T4461] __arm64_sys_ioctl+0xd0/0x148 [ 419.381274][ T4461] invoke_syscall+0x64/0x178 [ 419.382456][ T4461] el0_svc_common+0xb8/0x174 [ 419.383638][ T4461] do_el0_svc+0x48/0x174 [ 419.384759][ T4461] el0_svc+0x34/0x110 [ 419.385828][ T4461] el0t_64_sync_handler+0x84/0xf0 [ 419.387112][ T4461] el0t_64_sync+0x18c/0x190 [ 419.388284][ T4461] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 419.450433][ T4461] block nbd0: shutting down sockets [ 419.592073][ T4465] block nbd0: Device being setup by another task [ 419.593835][ T4464] FAULT_INJECTION: forcing a failure. [ 419.593835][ T4464] name failslab, interval 1, probability 0, space 0, times 0 [ 419.597041][ T4464] CPU: 1 PID: 4464 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 419.599689][ T4464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 419.602369][ T4464] Call trace: [ 419.603177][ T4464] dump_backtrace+0x1c8/0x1f4 [ 419.604371][ T4464] show_stack+0x2c/0x3c [ 419.605455][ T4464] dump_stack_lvl+0xc0/0x104 [ 419.606674][ T4464] dump_stack+0x1c/0x4c [ 419.607716][ T4464] should_fail_ex+0x1bc/0x1e0 [ 419.608908][ T4464] __should_failslab+0x64/0x78 [ 419.610135][ T4464] should_failslab+0x10/0x28 [ 419.611312][ T4464] slab_pre_alloc_hook+0x54/0x1f4 [ 419.612646][ T4464] kmem_cache_alloc_lru+0x60/0x2ac [ 419.613926][ T4464] __d_alloc+0x3c/0x290 [ 419.614958][ T4464] d_alloc_parallel+0x58/0x914 [ 419.616164][ T4464] __lookup_slow+0x8c/0x204 [ 419.617318][ T4464] lookup_one_len+0xd4/0x188 [ 419.618423][ T4464] start_creating+0x124/0x1f4 [ 419.619655][ T4464] debugfs_create_dir+0x2c/0x1e0 [ 419.621040][ T4464] nbd_start_device+0x1b4/0x510 [ 419.622283][ T4464] nbd_ioctl+0x228/0x66c [ 419.623398][ T4464] blkdev_ioctl+0x218/0x664 [ 419.624600][ T4464] __arm64_sys_ioctl+0xd0/0x148 [ 419.625810][ T4464] invoke_syscall+0x64/0x178 [ 419.627017][ T4464] el0_svc_common+0xb8/0x174 [ 419.628222][ T4464] do_el0_svc+0x48/0x174 [ 419.629373][ T4464] el0_svc+0x34/0x110 [ 419.630344][ T4464] el0t_64_sync_handler+0x84/0xf0 [ 419.631636][ T4464] el0t_64_sync+0x18c/0x190 [ 419.632858][ T4464] block nbd0: Failed to create debugfs dir for 'nbd0' [ 419.719717][ T4464] block nbd0: shutting down sockets [ 419.832089][ T4468] block nbd0: Device being setup by another task [ 419.833698][ T4467] FAULT_INJECTION: forcing a failure. [ 419.833698][ T4467] name failslab, interval 1, probability 0, space 0, times 0 [ 419.837056][ T4467] CPU: 0 PID: 4467 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 419.839595][ T4467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 419.842211][ T4467] Call trace: [ 419.843108][ T4467] dump_backtrace+0x1c8/0x1f4 [ 419.844328][ T4467] show_stack+0x2c/0x3c [ 419.845421][ T4467] dump_stack_lvl+0xc0/0x104 [ 419.846646][ T4467] dump_stack+0x1c/0x4c [ 419.847778][ T4467] should_fail_ex+0x1bc/0x1e0 [ 419.848969][ T4467] __should_failslab+0x64/0x78 [ 419.850231][ T4467] should_failslab+0x10/0x28 [ 419.851440][ T4467] slab_pre_alloc_hook+0x54/0x1f4 [ 419.852731][ T4467] kmem_cache_alloc_lru+0x60/0x2ac [ 419.854099][ T4467] __d_alloc+0x3c/0x290 [ 419.855121][ T4467] d_alloc_parallel+0x58/0x914 [ 419.856398][ T4467] __lookup_slow+0x8c/0x204 [ 419.857575][ T4467] lookup_one_len+0xd4/0x188 [ 419.858856][ T4467] start_creating+0x124/0x1f4 [ 419.860044][ T4467] debugfs_create_dir+0x2c/0x1e0 [ 419.861383][ T4467] nbd_start_device+0x1b4/0x510 [ 419.862629][ T4467] nbd_ioctl+0x228/0x66c [ 419.863754][ T4467] blkdev_ioctl+0x218/0x664 [ 419.864927][ T4467] __arm64_sys_ioctl+0xd0/0x148 [ 419.866157][ T4467] invoke_syscall+0x64/0x178 [ 419.867372][ T4467] el0_svc_common+0xb8/0x174 [ 419.868580][ T4467] do_el0_svc+0x48/0x174 [ 419.869677][ T4467] el0_svc+0x34/0x110 [ 419.870725][ T4467] el0t_64_sync_handler+0x84/0xf0 [ 419.871983][ T4467] el0t_64_sync+0x18c/0x190 [ 419.873209][ T4467] block nbd0: Failed to create debugfs dir for 'nbd0' [ 419.988120][ T4467] block nbd0: shutting down sockets [ 420.102087][ T4471] block nbd0: Device being setup by another task [ 420.103876][ T4470] FAULT_INJECTION: forcing a failure. [ 420.103876][ T4470] name failslab, interval 1, probability 0, space 0, times 0 [ 420.107177][ T4470] CPU: 0 PID: 4470 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.109739][ T4470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 420.112364][ T4470] Call trace: [ 420.113193][ T4470] dump_backtrace+0x1c8/0x1f4 [ 420.114396][ T4470] show_stack+0x2c/0x3c [ 420.115490][ T4470] dump_stack_lvl+0xc0/0x104 [ 420.116668][ T4470] dump_stack+0x1c/0x4c [ 420.117733][ T4470] should_fail_ex+0x1bc/0x1e0 [ 420.118933][ T4470] __should_failslab+0x64/0x78 [ 420.120189][ T4470] should_failslab+0x10/0x28 [ 420.121329][ T4470] slab_pre_alloc_hook+0x54/0x1f4 [ 420.122644][ T4470] kmem_cache_alloc_lru+0x60/0x2ac [ 420.123952][ T4470] __d_alloc+0x3c/0x290 [ 420.125010][ T4470] d_alloc_parallel+0x58/0x914 [ 420.126283][ T4470] __lookup_slow+0x8c/0x204 [ 420.127524][ T4470] lookup_one_len+0xd4/0x188 [ 420.128757][ T4470] start_creating+0x124/0x1f4 [ 420.129967][ T4470] debugfs_create_dir+0x2c/0x1e0 [ 420.131261][ T4470] nbd_start_device+0x1b4/0x510 [ 420.132527][ T4470] nbd_ioctl+0x228/0x66c [ 420.133639][ T4470] blkdev_ioctl+0x218/0x664 [ 420.134834][ T4470] __arm64_sys_ioctl+0xd0/0x148 [ 420.136109][ T4470] invoke_syscall+0x64/0x178 [ 420.137367][ T4470] el0_svc_common+0xb8/0x174 [ 420.138625][ T4470] do_el0_svc+0x48/0x174 [ 420.139723][ T4470] el0_svc+0x34/0x110 [ 420.140795][ T4470] el0t_64_sync_handler+0x84/0xf0 [ 420.142094][ T4470] el0t_64_sync+0x18c/0x190 [ 420.143318][ T4470] block nbd0: Failed to create debugfs dir for 'nbd0' [ 420.255157][ T4470] block nbd0: shutting down sockets [ 420.372120][ T4474] block nbd0: Device being setup by another task [ 420.373761][ T4473] FAULT_INJECTION: forcing a failure. [ 420.373761][ T4473] name failslab, interval 1, probability 0, space 0, times 0 [ 420.377005][ T4473] CPU: 0 PID: 4473 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.379522][ T4473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 420.382132][ T4473] Call trace: [ 420.382981][ T4473] dump_backtrace+0x1c8/0x1f4 [ 420.384171][ T4473] show_stack+0x2c/0x3c [ 420.385194][ T4473] dump_stack_lvl+0xc0/0x104 [ 420.386326][ T4473] dump_stack+0x1c/0x4c [ 420.387404][ T4473] should_fail_ex+0x1bc/0x1e0 [ 420.388585][ T4473] __should_failslab+0x64/0x78 [ 420.389826][ T4473] should_failslab+0x10/0x28 [ 420.390989][ T4473] slab_pre_alloc_hook+0x54/0x1f4 [ 420.392256][ T4473] kmem_cache_alloc_lru+0x60/0x2ac [ 420.393569][ T4473] __d_alloc+0x3c/0x290 [ 420.394630][ T4473] d_alloc_parallel+0x58/0x914 [ 420.395880][ T4473] __lookup_slow+0x8c/0x204 [ 420.397033][ T4473] lookup_one_len+0xd4/0x188 [ 420.398175][ T4473] start_creating+0x124/0x1f4 [ 420.399359][ T4473] debugfs_create_dir+0x2c/0x1e0 [ 420.400591][ T4473] nbd_start_device+0x1b4/0x510 [ 420.401854][ T4473] nbd_ioctl+0x228/0x66c [ 420.402944][ T4473] blkdev_ioctl+0x218/0x664 [ 420.404069][ T4473] __arm64_sys_ioctl+0xd0/0x148 [ 420.405424][ T4473] invoke_syscall+0x64/0x178 [ 420.406593][ T4473] el0_svc_common+0xb8/0x174 [ 420.407732][ T4473] do_el0_svc+0x48/0x174 [ 420.408814][ T4473] el0_svc+0x34/0x110 [ 420.409832][ T4473] el0t_64_sync_handler+0x84/0xf0 [ 420.411133][ T4473] el0t_64_sync+0x18c/0x190 [ 420.412427][ T4473] block nbd0: Failed to create debugfs dir for 'nbd0' [ 420.522683][ T4473] block nbd0: shutting down sockets [ 420.644040][ T4476] ------------[ cut here ]------------ [ 420.645525][ T4476] kernfs: can not remove 'nr_tags', no directory [ 420.647180][ T4476] WARNING: CPU: 1 PID: 4476 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 420.649609][ T4476] Modules linked in: [ 420.650577][ T4476] CPU: 1 PID: 4476 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.653150][ T4476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 420.655822][ T4476] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 420.657934][ T4476] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 420.659443][ T4476] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 420.660966][ T4476] sp : ffff80000dfd3ac0 [ 420.662041][ T4476] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 420.664115][ T4476] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0001ffa0ef80 [ 420.666167][ T4476] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 420.668241][ T4476] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 420.670323][ T4476] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 420.672403][ T4476] x14: 0000000000000000 x13: 205d363734345420 x12: ffff80000d194000 [ 420.674453][ T4476] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 16167a9a258bfb00 [ 420.676537][ T4476] x8 : 16167a9a258bfb00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 420.678680][ T4476] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 420.680787][ T4476] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 420.682950][ T4476] Call trace: [ 420.683788][ T4476] kernfs_remove_by_name_ns+0xb4/0x110 [ 420.685224][ T4476] sysfs_remove_group+0x68/0x160 [ 420.686491][ T4476] sysfs_remove_groups+0x3c/0x78 [ 420.687748][ T4476] __kobject_del+0x34/0x134 [ 420.688890][ T4476] kobject_del+0x2c/0x4c [ 420.689977][ T4476] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 420.691547][ T4476] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 420.693033][ T4476] nbd_start_device+0xc4/0x510 [ 420.694311][ T4476] nbd_ioctl+0x228/0x66c [ 420.695437][ T4476] blkdev_ioctl+0x218/0x664 [ 420.696629][ T4476] __arm64_sys_ioctl+0xd0/0x148 [ 420.697918][ T4476] invoke_syscall+0x64/0x178 [ 420.699132][ T4476] el0_svc_common+0xb8/0x174 [ 420.700386][ T4476] do_el0_svc+0x48/0x174 [ 420.701514][ T4476] el0_svc+0x34/0x110 [ 420.702610][ T4476] el0t_64_sync_handler+0x84/0xf0 [ 420.703929][ T4476] el0t_64_sync+0x18c/0x190 [ 420.705167][ T4476] ---[ end trace 0000000000000000 ]--- [ 420.706657][ T4476] ------------[ cut here ]------------ [ 420.708090][ T4476] kernfs: can not remove 'nr_reserved_tags', no directory [ 420.709984][ T4476] WARNING: CPU: 1 PID: 4476 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 420.712468][ T4476] Modules linked in: [ 420.713487][ T4476] CPU: 1 PID: 4476 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.716114][ T4476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 420.718812][ T4476] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 420.720911][ T4476] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 420.722460][ T4476] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 420.723959][ T4476] sp : ffff80000dfd3ac0 [ 420.725057][ T4476] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 420.727165][ T4476] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0001ffa0ef80 [ 420.729259][ T4476] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 420.731389][ T4476] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 420.733537][ T4476] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 420.735614][ T4476] x14: 0000000000000000 x13: 205d363734345420 x12: ffff80000d194000 [ 420.737733][ T4476] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 16167a9a258bfb00 [ 420.739860][ T4476] x8 : 16167a9a258bfb00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 420.741969][ T4476] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 420.744119][ T4476] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 420.746257][ T4476] Call trace: [ 420.747122][ T4476] kernfs_remove_by_name_ns+0xb4/0x110 [ 420.748589][ T4476] sysfs_remove_group+0x68/0x160 [ 420.749883][ T4476] sysfs_remove_groups+0x3c/0x78 [ 420.751176][ T4476] __kobject_del+0x34/0x134 [ 420.752393][ T4476] kobject_del+0x2c/0x4c [ 420.753524][ T4476] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 420.755059][ T4476] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 420.756567][ T4476] nbd_start_device+0xc4/0x510 [ 420.757830][ T4476] nbd_ioctl+0x228/0x66c [ 420.758942][ T4476] blkdev_ioctl+0x218/0x664 [ 420.760162][ T4476] __arm64_sys_ioctl+0xd0/0x148 [ 420.761496][ T4476] invoke_syscall+0x64/0x178 [ 420.762768][ T4476] el0_svc_common+0xb8/0x174 [ 420.763975][ T4476] do_el0_svc+0x48/0x174 [ 420.765106][ T4476] el0_svc+0x34/0x110 [ 420.766154][ T4476] el0t_64_sync_handler+0x84/0xf0 [ 420.767513][ T4476] el0t_64_sync+0x18c/0x190 [ 420.768670][ T4476] ---[ end trace 0000000000000000 ]--- [ 420.770162][ T4476] ------------[ cut here ]------------ [ 420.771582][ T4476] kernfs: can not remove 'cpu_list', no directory [ 420.773379][ T4476] WARNING: CPU: 1 PID: 4476 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 420.775867][ T4476] Modules linked in: [ 420.776844][ T4476] CPU: 1 PID: 4476 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.779320][ T4476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 420.781890][ T4476] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 420.783929][ T4476] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 420.785433][ T4476] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 420.786982][ T4476] sp : ffff80000dfd3ac0 [ 420.788100][ T4476] x29: ffff80000dfd3ac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 420.790202][ T4476] x26: ffff0000c5891108 x25: ffff80000dfd3be8 x24: ffff0001ffa0ef80 [ 420.792279][ T4476] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 420.794395][ T4476] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 420.796484][ T4476] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 420.798576][ T4476] x14: 0000000000000000 x13: 205d363734345420 x12: ffff80000d194000 [ 420.800664][ T4476] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 16167a9a258bfb00 [ 420.802762][ T4476] x8 : 16167a9a258bfb00 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 420.804844][ T4476] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 420.806901][ T4476] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 420.808992][ T4476] Call trace: [ 420.809843][ T4476] kernfs_remove_by_name_ns+0xb4/0x110 [ 420.811265][ T4476] sysfs_remove_group+0x68/0x160 [ 420.812577][ T4476] sysfs_remove_groups+0x3c/0x78 [ 420.813828][ T4476] __kobject_del+0x34/0x134 [ 420.815010][ T4476] kobject_del+0x2c/0x4c [ 420.816167][ T4476] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 420.817723][ T4476] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 420.819243][ T4476] nbd_start_device+0xc4/0x510 [ 420.820503][ T4476] nbd_ioctl+0x228/0x66c [ 420.821625][ T4476] blkdev_ioctl+0x218/0x664 [ 420.822778][ T4476] __arm64_sys_ioctl+0xd0/0x148 [ 420.824068][ T4476] invoke_syscall+0x64/0x178 [ 420.825285][ T4476] el0_svc_common+0xb8/0x174 [ 420.826450][ T4476] do_el0_svc+0x48/0x174 [ 420.827558][ T4476] el0_svc+0x34/0x110 [ 420.828616][ T4476] el0t_64_sync_handler+0x84/0xf0 [ 420.829944][ T4476] el0t_64_sync+0x18c/0x190 [ 420.831164][ T4476] ---[ end trace 0000000000000000 ]--- [ 420.835053][ T4476] block nbd0: shutting down sockets [ 420.952118][ T4479] block nbd0: Device being setup by another task [ 420.993804][ T4478] FAULT_INJECTION: forcing a failure. [ 420.993804][ T4478] name failslab, interval 1, probability 0, space 0, times 0 [ 420.997184][ T4478] CPU: 1 PID: 4478 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 420.999766][ T4478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.002383][ T4478] Call trace: [ 421.003267][ T4478] dump_backtrace+0x1c8/0x1f4 [ 421.004459][ T4478] show_stack+0x2c/0x3c [ 421.005540][ T4478] dump_stack_lvl+0xc0/0x104 [ 421.006789][ T4478] dump_stack+0x1c/0x4c [ 421.007844][ T4478] should_fail_ex+0x1bc/0x1e0 [ 421.009109][ T4478] __should_failslab+0x64/0x78 [ 421.010347][ T4478] should_failslab+0x10/0x28 [ 421.011527][ T4478] __kmem_cache_alloc_node+0x6c/0x348 [ 421.012890][ T4478] __kmalloc_node_track_caller+0x84/0xc0 [ 421.014282][ T4478] kstrdup_const+0x90/0xdc [ 421.015474][ T4478] __kernfs_new_node+0x5c/0x2e8 [ 421.016692][ T4478] kernfs_create_dir_ns+0xac/0x188 [ 421.017999][ T4478] sysfs_create_dir_ns+0x8c/0x168 [ 421.019264][ T4478] kobject_add_internal+0x314/0x64c [ 421.020640][ T4478] kobject_add+0xb8/0x130 [ 421.021788][ T4478] blk_mq_register_hctx+0x54/0x184 [ 421.023162][ T4478] blk_mq_sysfs_register_hctxs+0x80/0x110 [ 421.024637][ T4478] blk_mq_update_nr_hw_queues+0x4d0/0x6c8 [ 421.026156][ T4478] nbd_start_device+0xc4/0x510 [ 421.027405][ T4478] nbd_ioctl+0x228/0x66c [ 421.028482][ T4478] blkdev_ioctl+0x218/0x664 [ 421.029663][ T4478] __arm64_sys_ioctl+0xd0/0x148 [ 421.030985][ T4478] invoke_syscall+0x64/0x178 [ 421.032166][ T4478] el0_svc_common+0xb8/0x174 [ 421.033399][ T4478] do_el0_svc+0x48/0x174 [ 421.034548][ T4478] el0_svc+0x34/0x110 [ 421.035580][ T4478] el0t_64_sync_handler+0x84/0xf0 [ 421.036939][ T4478] el0t_64_sync+0x18c/0x190 [ 421.038191][ T4478] kobject_add_internal failed for 0 (error: -12 parent: mq) [ 421.105465][ T4478] block nbd0: shutting down sockets [ 421.212087][ T4482] block nbd0: Device being setup by another task [ 421.213972][ T4481] FAULT_INJECTION: forcing a failure. [ 421.213972][ T4481] name failslab, interval 1, probability 0, space 0, times 0 [ 421.217271][ T4481] CPU: 0 PID: 4481 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 421.219867][ T4481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.222393][ T4481] Call trace: [ 421.223277][ T4481] dump_backtrace+0x1c8/0x1f4 [ 421.224497][ T4481] show_stack+0x2c/0x3c [ 421.225591][ T4481] dump_stack_lvl+0xc0/0x104 [ 421.226773][ T4481] dump_stack+0x1c/0x4c [ 421.227849][ T4481] should_fail_ex+0x1bc/0x1e0 [ 421.229128][ T4481] __should_failslab+0x64/0x78 [ 421.230402][ T4481] should_failslab+0x10/0x28 [ 421.231605][ T4481] slab_pre_alloc_hook+0x54/0x1f4 [ 421.232895][ T4481] kmem_cache_alloc_lru+0x60/0x2ac [ 421.234215][ T4481] alloc_inode+0x7c/0x104 [ 421.235304][ T4481] new_inode+0x2c/0xc0 [ 421.236316][ T4481] debugfs_create_dir+0x98/0x1e0 [ 421.237633][ T4481] nbd_start_device+0x1b4/0x510 [ 421.238924][ T4481] nbd_ioctl+0x228/0x66c [ 421.240078][ T4481] blkdev_ioctl+0x218/0x664 [ 421.241240][ T4481] __arm64_sys_ioctl+0xd0/0x148 [ 421.242491][ T4481] invoke_syscall+0x64/0x178 [ 421.243752][ T4481] el0_svc_common+0xb8/0x174 [ 421.244925][ T4481] do_el0_svc+0x48/0x174 [ 421.246007][ T4481] el0_svc+0x34/0x110 [ 421.247063][ T4481] el0t_64_sync_handler+0x84/0xf0 [ 421.248410][ T4481] el0t_64_sync+0x18c/0x190 [ 421.249579][ T4481] debugfs: out of free dentries, can not create directory 'nbd0' [ 421.251674][ T4481] block nbd0: Failed to create debugfs dir for 'nbd0' [ 421.371461][ T4481] block nbd0: shutting down sockets [ 421.493927][ T4484] ------------[ cut here ]------------ [ 421.495475][ T4484] kernfs: can not remove 'nr_tags', no directory [ 421.497182][ T4484] WARNING: CPU: 0 PID: 4484 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 421.499644][ T4484] Modules linked in: [ 421.500653][ T4484] CPU: 0 PID: 4484 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 421.503259][ T4484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.505849][ T4484] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 421.507937][ T4484] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 421.509302][ T4484] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 421.510823][ T4484] sp : ffff80000dfabac0 [ 421.511892][ T4484] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 421.513951][ T4484] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffa24000 [ 421.516009][ T4484] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 421.518094][ T4484] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 421.520218][ T4484] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 421.522248][ T4484] x14: 0000000000000000 x13: 205d343834345420 x12: ffff80000d194000 [ 421.524298][ T4484] x11: 0000000000ff0100 x10: 0000000000000000 x9 : e0a84dad59a9f800 [ 421.526400][ T4484] x8 : e0a84dad59a9f800 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 421.528493][ T4484] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 421.530600][ T4484] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 421.532726][ T4484] Call trace: [ 421.533648][ T4484] kernfs_remove_by_name_ns+0xb4/0x110 [ 421.535080][ T4484] sysfs_remove_group+0x68/0x160 [ 421.536368][ T4484] sysfs_remove_groups+0x3c/0x78 [ 421.537655][ T4484] __kobject_del+0x34/0x134 [ 421.538813][ T4484] kobject_del+0x2c/0x4c [ 421.539889][ T4484] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 421.541510][ T4484] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 421.543010][ T4484] nbd_start_device+0xc4/0x510 [ 421.544299][ T4484] nbd_ioctl+0x228/0x66c [ 421.545407][ T4484] blkdev_ioctl+0x218/0x664 [ 421.546600][ T4484] __arm64_sys_ioctl+0xd0/0x148 [ 421.547852][ T4484] invoke_syscall+0x64/0x178 [ 421.549004][ T4484] el0_svc_common+0xb8/0x174 [ 421.550168][ T4484] do_el0_svc+0x48/0x174 [ 421.551292][ T4484] el0_svc+0x34/0x110 [ 421.552317][ T4484] el0t_64_sync_handler+0x84/0xf0 [ 421.553656][ T4484] el0t_64_sync+0x18c/0x190 [ 421.554866][ T4484] ---[ end trace 0000000000000000 ]--- [ 421.556326][ T4484] ------------[ cut here ]------------ [ 421.557780][ T4484] kernfs: can not remove 'nr_reserved_tags', no directory [ 421.559676][ T4484] WARNING: CPU: 0 PID: 4484 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 421.562218][ T4484] Modules linked in: [ 421.563230][ T4484] CPU: 0 PID: 4484 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 421.565788][ T4484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.568492][ T4484] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 421.570623][ T4484] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 421.572100][ T4484] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 421.573633][ T4484] sp : ffff80000dfabac0 [ 421.574704][ T4484] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 421.576910][ T4484] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffa24000 [ 421.579024][ T4484] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 421.581081][ T4484] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 421.583270][ T4484] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 421.585289][ T4484] x14: 0000000000000000 x13: 205d343834345420 x12: ffff80000d194000 [ 421.587432][ T4484] x11: 0000000000ff0100 x10: 0000000000000000 x9 : e0a84dad59a9f800 [ 421.589525][ T4484] x8 : e0a84dad59a9f800 x7 : 0000000000000000 x6 : ffff80000ae14b50 [ 421.591586][ T4484] x5 : 0000000000000000 x4 : 0000000000000080 x3 : ffff0001fe9dcea8 [ 421.593713][ T4484] x2 : ffff0001fe9dcea8 x1 : ffff80000b9b5b01 x0 : 0000000000000001 [ 421.595825][ T4484] Call trace: [ 421.596693][ T4484] kernfs_remove_by_name_ns+0xb4/0x110 [ 421.598184][ T4484] sysfs_remove_group+0x68/0x160 [ 421.599468][ T4484] sysfs_remove_groups+0x3c/0x78 [ 421.600745][ T4484] __kobject_del+0x34/0x134 [ 421.601904][ T4484] kobject_del+0x2c/0x4c [ 421.602986][ T4484] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 421.604537][ T4484] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 421.605993][ T4484] nbd_start_device+0xc4/0x510 [ 421.607191][ T4484] nbd_ioctl+0x228/0x66c [ 421.608285][ T4484] blkdev_ioctl+0x218/0x664 [ 421.609580][ T4484] __arm64_sys_ioctl+0xd0/0x148 [ 421.610874][ T4484] invoke_syscall+0x64/0x178 [ 421.612068][ T4484] el0_svc_common+0xb8/0x174 [ 421.613282][ T4484] do_el0_svc+0x48/0x174 [ 421.614442][ T4484] el0_svc+0x34/0x110 [ 421.615498][ T4484] el0t_64_sync_handler+0x84/0xf0 [ 421.616784][ T4484] el0t_64_sync+0x18c/0x190 [ 421.617963][ T4484] ---[ end trace 0000000000000000 ]--- [ 421.619561][ T4484] ------------[ cut here ]------------ [ 421.620986][ T4484] kernfs: can not remove 'cpu_list', no directory [ 421.622765][ T4484] WARNING: CPU: 0 PID: 4484 at fs/kernfs/dir.c:1640 kernfs_remove_by_name_ns+0xb4/0x110 [ 421.625285][ T4484] Modules linked in: [ 421.626259][ T4484] CPU: 0 PID: 4484 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 421.628894][ T4484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.631418][ T4484] pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) [ 421.633420][ T4484] pc : kernfs_remove_by_name_ns+0xb4/0x110 [ 421.634930][ T4484] lr : kernfs_remove_by_name_ns+0xb0/0x110 [ 421.636467][ T4484] sp : ffff80000dfabac0 [ 421.637543][ T4484] x29: ffff80000dfabac0 x28: ffff80000bce3000 x27: ffff0000c5891108 [ 421.639598][ T4484] x26: ffff0000c5891108 x25: ffff80000dfabbe8 x24: ffff0001ffa24000 [ 421.641772][ T4484] x23: ffff0000c6730000 x22: 0000000000000000 x21: 0000000000000000 [ 421.643846][ T4484] x20: 00000000fffffffe x19: 0000000000000000 x18: 0000000000000000 [ 421.645957][ T4484] x17: ffff80000d3d0688 x16: 0000000000001167 x15: 0000000000000000 [ 421.647993][ T4484] x14: 0000000000000000 x13: 205d343834345420 x12: ffff80000d194000 [ 421.650035][ T4484] x11: 0000000000ff0100 x10: 0000000000000000 x9 : e0a84dad59a9f800 [ 421.652097][ T4484] x8 : e0a84dad59a9f800 x7 : 0000000000000000 x6 : ffff80000ae19184 [ 421.654249][ T4484] x5 : 0000000000000000 x4 : 0000000000000080 x3 : 0000000000000000 [ 421.656338][ T4484] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 421.658496][ T4484] Call trace: [ 421.659341][ T4484] kernfs_remove_by_name_ns+0xb4/0x110 [ 421.660845][ T4484] sysfs_remove_group+0x68/0x160 [ 421.662189][ T4484] sysfs_remove_groups+0x3c/0x78 [ 421.663578][ T4484] __kobject_del+0x34/0x134 [ 421.664788][ T4484] kobject_del+0x2c/0x4c [ 421.665930][ T4484] blk_mq_sysfs_unregister_hctxs+0xc4/0x13c [ 421.667486][ T4484] blk_mq_update_nr_hw_queues+0x24c/0x6c8 [ 421.668956][ T4484] nbd_start_device+0xc4/0x510 [ 421.670259][ T4484] nbd_ioctl+0x228/0x66c [ 421.671405][ T4484] blkdev_ioctl+0x218/0x664 [ 421.672636][ T4484] __arm64_sys_ioctl+0xd0/0x148 [ 421.673955][ T4484] invoke_syscall+0x64/0x178 [ 421.675156][ T4484] el0_svc_common+0xb8/0x174 [ 421.676397][ T4484] do_el0_svc+0x48/0x174 [ 421.677498][ T4484] el0_svc+0x34/0x110 [ 421.678548][ T4484] el0t_64_sync_handler+0x84/0xf0 [ 421.679891][ T4484] el0t_64_sync+0x18c/0x190 [ 421.681060][ T4484] ---[ end trace 0000000000000000 ]--- [ 421.684888][ T4484] block nbd0: shutting down sockets [ 421.812139][ T4487] FAULT_INJECTION: forcing a failure. [ 421.812139][ T4487] name failslab, interval 1, probability 0, space 0, times 0 [ 421.815398][ T4487] CPU: 0 PID: 4487 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0 [ 421.817980][ T4487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 421.820587][ T4487] Call trace: [ 421.821378][ T4487] dump_backtrace+0x1c8/0x1f4 [ 421.822567][ T4487] show_stack+0x2c/0x3c [ 421.823669][ T4487] dump_stack_lvl+0xc0/0x104 [ 421.824834][ T4487] dump_stack+0x1c/0x4c [ 421.825899][ T4487] should_fail_ex+0x1bc/0x1e0 [ 421.827089][ T4487] __should_failslab+0x64/0x78 [ 421.828295][ T4487] should_failslab+0x10/0x28 [ 421.829507][ T4487] slab_pre_alloc_hook+0x54/0x1f4 [ 421.830854][ T4487] kmem_cache_alloc_lru+0x60/0x2ac [ 421.832197][ T4487] alloc_inode+0x7c/0x104 [ 421.833302][ T4487] new_inode+0x2c/0xc0 [ 421.834364][ T4487] debugfs_create_dir+0x98/0x1e0 [ 421.835654][ T4487] nbd_start_device+0x1b4/0x510 [ 421.836958][ T4487] nbd_ioctl+0x228/0x66c [ 421.838073][ T4487] blkdev_ioctl+0x218/0x664 [ 421.839254][ T4487] __arm64_sys_ioctl+0xd0/0x148 [ 421.840550][ T4487] invoke_syscall+0x64/0x178 [ 421.841778][ T4487] el0_svc_common+0xb8/0x174 [ 421.842965][ T4487] do_el0_svc+0x48/0x174 [ 421.844090][ T4487] el0_svc+0x34/0x110 [ 421.845078][ T4487] el0t_64_sync_handler+0x84/0xf0 [ 421.846408][ T4487] el0t_64_sync+0x18c/0x190 [ 421.847663][ T4487] debugfs: out of free dentries, can not create directory 'nbd0' [ 421.849666][ T4487] block nbd0: Failed to create debugfs dir for 'nbd0' [ 421.955597][ T4487] block nbd0: shutting down sockets [ 422.072101][ T4490] block nbd0: Device being setup by another task [ 422.114048][ T4489] FAULT_INJECTION: forcing a failure. [ 422.114048][ T4489] name failslab, interval 1, probability 0, space 0, times 0 [ 422.117414][ T4489] CPU: 1 PID: 4489 Comm: syz-executor199 Tainted: G W 6.1.88-syzkaller #0