lloc_sched_ctx_batch+0x1f5/0x260
[  586.735755][ T7668]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  586.735789][ T7668]  ? nbd_start_device+0x174/0xb10
[  586.735823][ T7668]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  586.735846][ T7668]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  586.735876][ T7668]  ? nbd_ioctl+0x131/0xe10
[  586.735896][ T7668]  ? __pfx___mutex_lock+0x10/0x10
[  586.735911][ T7668]  nbd_start_device+0x17f/0xb10
[  586.735936][ T7668]  nbd_ioctl+0x56e/0xe10
[  586.735957][ T7668]  ? __pfx_nbd_ioctl+0x10/0x10
[  586.735981][ T7668]  ? __pfx_nbd_ioctl+0x10/0x10
[  586.735999][ T7668]  blkdev_ioctl+0x60e/0x710
[  586.736016][ T7668]  ? __pfx_blkdev_ioctl+0x10/0x10
[  586.736029][ T7668]  ? __fget_files+0x3a0/0x420
[  586.736047][ T7668]  ? __fget_files+0x2a/0x420
[  586.736066][ T7668]  ? bpf_lsm_file_ioctl+0x9/0x20
[  586.736082][ T7668]  ? __pfx_blkdev_ioctl+0x10/0x10
[  586.736097][ T7668]  __se_sys_ioctl+0xfc/0x170
[  586.736112][ T7668]  do_syscall_64+0xfa/0xfa0
[  586.736125][ T7668]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  586.736137][ T7668]  ? clear_bhb_loop+0x60/0xb0
[  586.736152][ T7668]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  586.736164][ T7668] RIP: 0033:0x7f1191ab5569
[  586.736177][ T7668] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  586.736188][ T7668] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  586.736204][ T7668] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  586.736213][ T7668] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  586.736221][ T7668] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  586.736229][ T7668] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  586.736237][ T7668] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  586.736257][ T7668]  </TASK>
[  587.158601][ T7668] block nbd0: shutting down sockets
[  587.283293][ T7670] FAULT_INJECTION: forcing a failure.
[  587.283293][ T7670] name failslab, interval 1, probability 0, space 0, times 0
[  587.296277][ T7670] CPU: 0 UID: 0 PID: 7670 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  587.296308][ T7670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  587.296321][ T7670] Call Trace:
[  587.296334][ T7670]  <TASK>
[  587.296343][ T7670]  dump_stack_lvl+0x189/0x250
[  587.296381][ T7670]  ? __pfx____ratelimit+0x10/0x10
[  587.296407][ T7670]  ? __pfx_dump_stack_lvl+0x10/0x10
[  587.296426][ T7670]  ? __pfx__printk+0x10/0x10
[  587.296441][ T7670]  ? __pfx___might_resched+0x10/0x10
[  587.296458][ T7670]  ? fs_reclaim_acquire+0x7d/0x100
[  587.296507][ T7670]  should_fail_ex+0x414/0x560
[  587.296527][ T7670]  should_failslab+0xa8/0x100
[  587.296546][ T7670]  __kvmalloc_node_noprof+0x175/0x910
[  587.296563][ T7670]  ? sbitmap_init_node+0x2cd/0x640
[  587.296578][ T7670]  sbitmap_init_node+0x2cd/0x640
[  587.296596][ T7670]  sbitmap_queue_init_node+0x3e/0x4d0
[  587.296612][ T7670]  blk_mq_init_tags+0x15c/0x2d0
[  587.296633][ T7670]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  587.296658][ T7670]  blk_mq_alloc_sched_tags+0x141/0x370
[  587.296679][ T7670]  blk_mq_alloc_sched_res+0x92/0x360
[  587.296700][ T7670]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  587.296716][ T7670]  ? _raw_spin_unlock+0x28/0x50
[  587.296735][ T7670]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  587.296753][ T7670]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  587.296774][ T7670]  ? nbd_start_device+0x174/0xb10
[  587.296794][ T7670]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  587.296809][ T7670]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  587.296830][ T7670]  ? nbd_ioctl+0x131/0xe10
[  587.296848][ T7670]  ? __pfx___mutex_lock+0x10/0x10
[  587.296865][ T7670]  nbd_start_device+0x17f/0xb10
[  587.296889][ T7670]  nbd_ioctl+0x56e/0xe10
[  587.296910][ T7670]  ? __pfx_nbd_ioctl+0x10/0x10
[  587.296935][ T7670]  ? __pfx_nbd_ioctl+0x10/0x10
[  587.296953][ T7670]  blkdev_ioctl+0x60e/0x710
[  587.296970][ T7670]  ? __pfx_blkdev_ioctl+0x10/0x10
[  587.296983][ T7670]  ? __fget_files+0x3a0/0x420
[  587.297000][ T7670]  ? __fget_files+0x2a/0x420
[  587.297019][ T7670]  ? bpf_lsm_file_ioctl+0x9/0x20
[  587.297036][ T7670]  ? __pfx_blkdev_ioctl+0x10/0x10
[  587.297050][ T7670]  __se_sys_ioctl+0xfc/0x170
[  587.297066][ T7670]  do_syscall_64+0xfa/0xfa0
[  587.297079][ T7670]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  587.297091][ T7670]  ? clear_bhb_loop+0x60/0xb0
[  587.297106][ T7670]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  587.297118][ T7670] RIP: 0033:0x7f1191ab5569
[  587.297131][ T7670] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  587.297142][ T7670] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  587.297158][ T7670] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  587.297167][ T7670] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  587.297175][ T7670] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  587.297183][ T7670] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  587.297191][ T7670] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  587.297212][ T7670]  </TASK>
[  587.643143][ T7670] block nbd0: shutting down sockets
[  587.792646][ T7673] FAULT_INJECTION: forcing a failure.
[  587.792646][ T7673] name failslab, interval 1, probability 0, space 0, times 0
[  587.805381][ T7673] CPU: 1 UID: 0 PID: 7673 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  587.805406][ T7673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  587.805414][ T7673] Call Trace:
[  587.805423][ T7673]  <TASK>
[  587.805430][ T7673]  dump_stack_lvl+0x189/0x250
[  587.805462][ T7673]  ? __pfx____ratelimit+0x10/0x10
[  587.805482][ T7673]  ? __pfx_dump_stack_lvl+0x10/0x10
[  587.805501][ T7673]  ? __pfx__printk+0x10/0x10
[  587.805519][ T7673]  ? __pfx___might_resched+0x10/0x10
[  587.805537][ T7673]  ? fs_reclaim_acquire+0x7d/0x100
[  587.805556][ T7673]  should_fail_ex+0x414/0x560
[  587.805576][ T7673]  should_failslab+0xa8/0x100
[  587.805595][ T7673]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  587.805611][ T7673]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  587.805627][ T7673]  sbitmap_queue_init_node+0x1dc/0x4d0
[  587.805642][ T7673]  blk_mq_init_tags+0x15c/0x2d0
[  587.805663][ T7673]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  587.805688][ T7673]  blk_mq_alloc_sched_tags+0x141/0x370
[  587.805715][ T7673]  blk_mq_alloc_sched_res+0x92/0x360
[  587.805734][ T7673]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  587.805750][ T7673]  ? _raw_spin_unlock+0x28/0x50
[  587.805766][ T7673]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  587.805784][ T7673]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  587.805805][ T7673]  ? nbd_start_device+0x174/0xb10
[  587.805824][ T7673]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  587.805839][ T7673]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  587.805860][ T7673]  ? nbd_ioctl+0x131/0xe10
[  587.805884][ T7673]  ? __pfx___mutex_lock+0x10/0x10
[  587.805903][ T7673]  nbd_start_device+0x17f/0xb10
[  587.805928][ T7673]  nbd_ioctl+0x56e/0xe10
[  587.805949][ T7673]  ? __pfx_nbd_ioctl+0x10/0x10
[  587.805973][ T7673]  ? __pfx_nbd_ioctl+0x10/0x10
[  587.805991][ T7673]  blkdev_ioctl+0x60e/0x710
[  587.806008][ T7673]  ? __pfx_blkdev_ioctl+0x10/0x10
[  587.806022][ T7673]  ? __fget_files+0x3a0/0x420
[  587.806038][ T7673]  ? __fget_files+0x2a/0x420
[  587.806058][ T7673]  ? bpf_lsm_file_ioctl+0x9/0x20
[  587.806074][ T7673]  ? __pfx_blkdev_ioctl+0x10/0x10
[  587.806089][ T7673]  __se_sys_ioctl+0xfc/0x170
[  587.806105][ T7673]  do_syscall_64+0xfa/0xfa0
[  587.806118][ T7673]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  587.806131][ T7673]  ? clear_bhb_loop+0x60/0xb0
[  587.806145][ T7673]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  587.806158][ T7673] RIP: 0033:0x7f1191ab5569
[  587.806171][ T7673] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  587.806187][ T7673] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  587.806203][ T7673] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  587.806212][ T7673] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  587.806220][ T7673] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  587.806229][ T7673] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  587.806237][ T7673] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  587.806258][ T7673]  </TASK>
[  588.200881][ T7673] block nbd0: shutting down sockets
[  588.312679][ T7676] FAULT_INJECTION: forcing a failure.
[  588.312679][ T7676] name failslab, interval 1, probability 0, space 0, times 0
[  588.325758][ T7676] CPU: 0 UID: 0 PID: 7676 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  588.325777][ T7676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  588.325785][ T7676] Call Trace:
[  588.325792][ T7676]  <TASK>
[  588.325798][ T7676]  dump_stack_lvl+0x189/0x250
[  588.325820][ T7676]  ? __pfx____ratelimit+0x10/0x10
[  588.325841][ T7676]  ? __pfx_dump_stack_lvl+0x10/0x10
[  588.325859][ T7676]  ? __pfx__printk+0x10/0x10
[  588.325877][ T7676]  ? __pfx___might_resched+0x10/0x10
[  588.325893][ T7676]  ? fs_reclaim_acquire+0x7d/0x100
[  588.325912][ T7676]  should_fail_ex+0x414/0x560
[  588.325931][ T7676]  should_failslab+0xa8/0x100
[  588.325950][ T7676]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  588.325966][ T7676]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  588.325982][ T7676]  sbitmap_queue_init_node+0x1dc/0x4d0
[  588.325997][ T7676]  blk_mq_init_tags+0x15c/0x2d0
[  588.326017][ T7676]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  588.326041][ T7676]  blk_mq_alloc_sched_tags+0x141/0x370
[  588.326061][ T7676]  blk_mq_alloc_sched_res+0x92/0x360
[  588.326078][ T7676]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  588.326095][ T7676]  ? _raw_spin_unlock+0x28/0x50
[  588.326111][ T7676]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  588.326128][ T7676]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  588.326149][ T7676]  ? nbd_start_device+0x174/0xb10
[  588.326170][ T7676]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  588.326184][ T7676]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  588.326205][ T7676]  ? nbd_ioctl+0x131/0xe10
[  588.326224][ T7676]  ? __pfx___mutex_lock+0x10/0x10
[  588.326240][ T7676]  nbd_start_device+0x17f/0xb10
[  588.326264][ T7676]  nbd_ioctl+0x56e/0xe10
[  588.326284][ T7676]  ? __pfx_nbd_ioctl+0x10/0x10
[  588.326309][ T7676]  ? __pfx_nbd_ioctl+0x10/0x10
[  588.326327][ T7676]  blkdev_ioctl+0x60e/0x710
[  588.326344][ T7676]  ? __pfx_blkdev_ioctl+0x10/0x10
[  588.326357][ T7676]  ? __fget_files+0x3a0/0x420
[  588.326374][ T7676]  ? __fget_files+0x2a/0x420
[  588.326393][ T7676]  ? bpf_lsm_file_ioctl+0x9/0x20
[  588.326410][ T7676]  ? __pfx_blkdev_ioctl+0x10/0x10
[  588.326424][ T7676]  __se_sys_ioctl+0xfc/0x170
[  588.326440][ T7676]  do_syscall_64+0xfa/0xfa0
[  588.326452][ T7676]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  588.326465][ T7676]  ? clear_bhb_loop+0x60/0xb0
[  588.326479][ T7676]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  588.326494][ T7676] RIP: 0033:0x7f1191ab5569
[  588.326506][ T7676] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  588.326518][ T7676] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  588.326533][ T7676] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  588.326542][ T7676] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  588.326550][ T7676] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  588.326559][ T7676] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  588.326583][ T7676] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  588.326603][ T7676]  </TASK>
[  588.662518][ T7676] block nbd0: shutting down sockets
[  588.763206][ T7678] FAULT_INJECTION: forcing a failure.
[  588.763206][ T7678] name failslab, interval 1, probability 0, space 0, times 0
[  588.776029][ T7678] CPU: 1 UID: 0 PID: 7678 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  588.776058][ T7678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  588.776070][ T7678] Call Trace:
[  588.776080][ T7678]  <TASK>
[  588.776086][ T7678]  dump_stack_lvl+0x189/0x250
[  588.776110][ T7678]  ? __pfx____ratelimit+0x10/0x10
[  588.776130][ T7678]  ? __pfx_dump_stack_lvl+0x10/0x10
[  588.776148][ T7678]  ? __pfx__printk+0x10/0x10
[  588.776165][ T7678]  ? __pfx___might_resched+0x10/0x10
[  588.776182][ T7678]  ? fs_reclaim_acquire+0x7d/0x100
[  588.776201][ T7678]  should_fail_ex+0x414/0x560
[  588.776222][ T7678]  should_failslab+0xa8/0x100
[  588.776240][ T7678]  __kvmalloc_node_noprof+0x175/0x910
[  588.776257][ T7678]  ? sbitmap_init_node+0x2cd/0x640
[  588.776273][ T7678]  sbitmap_init_node+0x2cd/0x640
[  588.776290][ T7678]  sbitmap_queue_init_node+0x3e/0x4d0
[  588.776306][ T7678]  blk_mq_init_tags+0x15c/0x2d0
[  588.776327][ T7678]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  588.776352][ T7678]  blk_mq_alloc_sched_tags+0x141/0x370
[  588.776372][ T7678]  blk_mq_alloc_sched_res+0x92/0x360
[  588.776390][ T7678]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  588.776406][ T7678]  ? _raw_spin_unlock+0x28/0x50
[  588.776422][ T7678]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  588.776440][ T7678]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  588.776460][ T7678]  ? nbd_start_device+0x174/0xb10
[  588.776481][ T7678]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  588.776495][ T7678]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  588.776516][ T7678]  ? nbd_ioctl+0x131/0xe10
[  588.776535][ T7678]  ? __pfx___mutex_lock+0x10/0x10
[  588.776555][ T7678]  nbd_start_device+0x17f/0xb10
[  588.776580][ T7678]  nbd_ioctl+0x56e/0xe10
[  588.776601][ T7678]  ? __pfx_nbd_ioctl+0x10/0x10
[  588.776626][ T7678]  ? __pfx_nbd_ioctl+0x10/0x10
[  588.776645][ T7678]  blkdev_ioctl+0x60e/0x710
[  588.776662][ T7678]  ? __pfx_blkdev_ioctl+0x10/0x10
[  588.776675][ T7678]  ? __fget_files+0x3a0/0x420
[  588.776691][ T7678]  ? __fget_files+0x2a/0x420
[  588.776710][ T7678]  ? bpf_lsm_file_ioctl+0x9/0x20
[  588.776727][ T7678]  ? __pfx_blkdev_ioctl+0x10/0x10
[  588.776741][ T7678]  __se_sys_ioctl+0xfc/0x170
[  588.776757][ T7678]  do_syscall_64+0xfa/0xfa0
[  588.776770][ T7678]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  588.776782][ T7678]  ? clear_bhb_loop+0x60/0xb0
[  588.776797][ T7678]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  588.776816][ T7678] RIP: 0033:0x7f1191ab5569
[  588.776828][ T7678] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  588.776840][ T7678] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  588.776855][ T7678] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  588.776865][ T7678] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  588.776873][ T7678] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  588.776881][ T7678] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  588.776889][ T7678] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  588.776910][ T7678]  </TASK>
[  589.204699][ T7678] block nbd0: shutting down sockets
[  589.313557][ T7680] FAULT_INJECTION: forcing a failure.
[  589.313557][ T7680] name failslab, interval 1, probability 0, space 0, times 0
[  589.326320][ T7680] CPU: 0 UID: 0 PID: 7680 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  589.326350][ T7680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  589.326362][ T7680] Call Trace:
[  589.326374][ T7680]  <TASK>
[  589.326380][ T7680]  dump_stack_lvl+0x189/0x250
[  589.326404][ T7680]  ? __pfx____ratelimit+0x10/0x10
[  589.326423][ T7680]  ? __pfx_dump_stack_lvl+0x10/0x10
[  589.326442][ T7680]  ? __pfx__printk+0x10/0x10
[  589.326460][ T7680]  ? __pfx___might_resched+0x10/0x10
[  589.326477][ T7680]  ? fs_reclaim_acquire+0x7d/0x100
[  589.326495][ T7680]  should_fail_ex+0x414/0x560
[  589.326515][ T7680]  should_failslab+0xa8/0x100
[  589.326538][ T7680]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  589.326554][ T7680]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  589.326571][ T7680]  sbitmap_queue_init_node+0x1dc/0x4d0
[  589.326585][ T7680]  blk_mq_init_tags+0x15c/0x2d0
[  589.326606][ T7680]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  589.326630][ T7680]  blk_mq_alloc_sched_tags+0x141/0x370
[  589.326650][ T7680]  blk_mq_alloc_sched_res+0x92/0x360
[  589.326673][ T7680]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  589.326689][ T7680]  ? _raw_spin_unlock+0x28/0x50
[  589.326706][ T7680]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  589.326724][ T7680]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  589.326745][ T7680]  ? nbd_start_device+0x174/0xb10
[  589.326765][ T7680]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  589.326787][ T7680]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  589.326808][ T7680]  ? nbd_ioctl+0x131/0xe10
[  589.326828][ T7680]  ? __pfx___mutex_lock+0x10/0x10
[  589.326844][ T7680]  nbd_start_device+0x17f/0xb10
[  589.326868][ T7680]  nbd_ioctl+0x56e/0xe10
[  589.326890][ T7680]  ? __pfx_nbd_ioctl+0x10/0x10
[  589.326915][ T7680]  ? __pfx_nbd_ioctl+0x10/0x10
[  589.326933][ T7680]  blkdev_ioctl+0x60e/0x710
[  589.326950][ T7680]  ? __pfx_blkdev_ioctl+0x10/0x10
[  589.326964][ T7680]  ? __fget_files+0x3a0/0x420
[  589.326981][ T7680]  ? __fget_files+0x2a/0x420
[  589.327000][ T7680]  ? bpf_lsm_file_ioctl+0x9/0x20
[  589.327016][ T7680]  ? __pfx_blkdev_ioctl+0x10/0x10
[  589.327031][ T7680]  __se_sys_ioctl+0xfc/0x170
[  589.327046][ T7680]  do_syscall_64+0xfa/0xfa0
[  589.327060][ T7680]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  589.327072][ T7680]  ? clear_bhb_loop+0x60/0xb0
[  589.327087][ T7680]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  589.327099][ T7680] RIP: 0033:0x7f1191ab5569
[  589.327111][ T7680] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  589.327123][ T7680] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  589.327138][ T7680] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  589.327156][ T7680] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  589.327165][ T7680] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  589.327173][ T7680] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  589.327181][ T7680] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  589.327202][ T7680]  </TASK>
[  589.672618][ T7680] block nbd0: shutting down sockets
[  589.802681][ T7683] FAULT_INJECTION: forcing a failure.
[  589.802681][ T7683] name failslab, interval 1, probability 0, space 0, times 0
[  589.815647][ T7683] CPU: 1 UID: 0 PID: 7683 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  589.815668][ T7683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  589.815676][ T7683] Call Trace:
[  589.815684][ T7683]  <TASK>
[  589.815690][ T7683]  dump_stack_lvl+0x189/0x250
[  589.815714][ T7683]  ? __pfx____ratelimit+0x10/0x10
[  589.815741][ T7683]  ? __pfx_dump_stack_lvl+0x10/0x10
[  589.815759][ T7683]  ? __pfx__printk+0x10/0x10
[  589.815777][ T7683]  ? __pfx___might_resched+0x10/0x10
[  589.815794][ T7683]  ? fs_reclaim_acquire+0x7d/0x100
[  589.815813][ T7683]  should_fail_ex+0x414/0x560
[  589.815834][ T7683]  should_failslab+0xa8/0x100
[  589.815853][ T7683]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  589.815869][ T7683]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  589.815885][ T7683]  sbitmap_queue_init_node+0x1dc/0x4d0
[  589.815900][ T7683]  blk_mq_init_tags+0x15c/0x2d0
[  589.815921][ T7683]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  589.815946][ T7683]  blk_mq_alloc_sched_tags+0x141/0x370
[  589.815965][ T7683]  blk_mq_alloc_sched_res+0x92/0x360
[  589.815983][ T7683]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  589.815999][ T7683]  ? _raw_spin_unlock+0x28/0x50
[  589.816015][ T7683]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  589.816034][ T7683]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  589.816054][ T7683]  ? nbd_start_device+0x174/0xb10
[  589.816074][ T7683]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  589.816096][ T7683]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  589.816128][ T7683]  ? nbd_ioctl+0x131/0xe10
[  589.816159][ T7683]  ? __pfx___mutex_lock+0x10/0x10
[  589.816185][ T7683]  nbd_start_device+0x17f/0xb10
[  589.816214][ T7683]  nbd_ioctl+0x56e/0xe10
[  589.816235][ T7683]  ? __pfx_nbd_ioctl+0x10/0x10
[  589.816260][ T7683]  ? __pfx_nbd_ioctl+0x10/0x10
[  589.816278][ T7683]  blkdev_ioctl+0x60e/0x710
[  589.816295][ T7683]  ? __pfx_blkdev_ioctl+0x10/0x10
[  589.816308][ T7683]  ? __fget_files+0x3a0/0x420
[  589.816325][ T7683]  ? __fget_files+0x2a/0x420
[  589.816344][ T7683]  ? bpf_lsm_file_ioctl+0x9/0x20
[  589.816361][ T7683]  ? __pfx_blkdev_ioctl+0x10/0x10
[  589.816375][ T7683]  __se_sys_ioctl+0xfc/0x170
[  589.816390][ T7683]  do_syscall_64+0xfa/0xfa0
[  589.816404][ T7683]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  589.816416][ T7683]  ? clear_bhb_loop+0x60/0xb0
[  589.816431][ T7683]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  589.816442][ T7683] RIP: 0033:0x7f1191ab5569
[  589.816456][ T7683] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  589.816467][ T7683] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  589.816482][ T7683] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  589.816494][ T7683] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  589.816502][ T7683] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  589.816511][ T7683] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  589.816519][ T7683] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  589.816539][ T7683]  </TASK>
[  590.239669][ T7683] block nbd0: shutting down sockets
[  590.333267][ T7685] FAULT_INJECTION: forcing a failure.
[  590.333267][ T7685] name failslab, interval 1, probability 0, space 0, times 0
[  590.346335][ T7685] CPU: 0 UID: 0 PID: 7685 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  590.346365][ T7685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  590.346377][ T7685] Call Trace:
[  590.346390][ T7685]  <TASK>
[  590.346398][ T7685]  dump_stack_lvl+0x189/0x250
[  590.346428][ T7685]  ? __pfx____ratelimit+0x10/0x10
[  590.346454][ T7685]  ? __pfx_dump_stack_lvl+0x10/0x10
[  590.346479][ T7685]  ? __pfx__printk+0x10/0x10
[  590.346501][ T7685]  ? __pfx___might_resched+0x10/0x10
[  590.346524][ T7685]  ? fs_reclaim_acquire+0x7d/0x100
[  590.346550][ T7685]  should_fail_ex+0x414/0x560
[  590.346577][ T7685]  should_failslab+0xa8/0x100
[  590.346602][ T7685]  __kvmalloc_node_noprof+0x175/0x910
[  590.346625][ T7685]  ? sbitmap_init_node+0x2cd/0x640
[  590.346646][ T7685]  sbitmap_init_node+0x2cd/0x640
[  590.346671][ T7685]  sbitmap_queue_init_node+0x3e/0x4d0
[  590.346692][ T7685]  blk_mq_init_tags+0x15c/0x2d0
[  590.346735][ T7685]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  590.346770][ T7685]  blk_mq_alloc_sched_tags+0x141/0x370
[  590.346797][ T7685]  blk_mq_alloc_sched_res+0x92/0x360
[  590.346821][ T7685]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  590.346843][ T7685]  ? _raw_spin_unlock+0x28/0x50
[  590.346865][ T7685]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  590.346889][ T7685]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  590.346918][ T7685]  ? nbd_start_device+0x174/0xb10
[  590.346946][ T7685]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  590.346965][ T7685]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  590.346993][ T7685]  ? nbd_ioctl+0x131/0xe10
[  590.347019][ T7685]  ? __pfx___mutex_lock+0x10/0x10
[  590.347041][ T7685]  nbd_start_device+0x17f/0xb10
[  590.347074][ T7685]  nbd_ioctl+0x56e/0xe10
[  590.347103][ T7685]  ? __pfx_nbd_ioctl+0x10/0x10
[  590.347138][ T7685]  ? __pfx_nbd_ioctl+0x10/0x10
[  590.347162][ T7685]  blkdev_ioctl+0x60e/0x710
[  590.347186][ T7685]  ? __pfx_blkdev_ioctl+0x10/0x10
[  590.347203][ T7685]  ? __fget_files+0x3a0/0x420
[  590.347230][ T7685]  ? __fget_files+0x2a/0x420
[  590.347256][ T7685]  ? bpf_lsm_file_ioctl+0x9/0x20
[  590.347278][ T7685]  ? __pfx_blkdev_ioctl+0x10/0x10
[  590.347298][ T7685]  __se_sys_ioctl+0xfc/0x170
[  590.347319][ T7685]  do_syscall_64+0xfa/0xfa0
[  590.347336][ T7685]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  590.347352][ T7685]  ? clear_bhb_loop+0x60/0xb0
[  590.347373][ T7685]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  590.347388][ T7685] RIP: 0033:0x7f1191ab5569
[  590.347405][ T7685] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  590.347419][ T7685] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  590.347438][ T7685] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  590.347451][ T7685] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  590.347462][ T7685] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  590.347474][ T7685] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  590.347484][ T7685] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  590.347513][ T7685]  </TASK>
[  590.777398][ T7685] block nbd0: shutting down sockets
[  590.902214][ T7688] block nbd0: Device being setup by another task
[  590.908961][ T7687] FAULT_INJECTION: forcing a failure.
[  590.908961][ T7687] name failslab, interval 1, probability 0, space 0, times 0
[  590.922177][ T7687] CPU: 1 UID: 0 PID: 7687 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  590.922204][ T7687] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  590.922217][ T7687] Call Trace:
[  590.922226][ T7687]  <TASK>
[  590.922235][ T7687]  dump_stack_lvl+0x189/0x250
[  590.922270][ T7687]  ? __pfx____ratelimit+0x10/0x10
[  590.922300][ T7687]  ? __pfx_dump_stack_lvl+0x10/0x10
[  590.922329][ T7687]  ? __pfx__printk+0x10/0x10
[  590.922358][ T7687]  ? __pfx___might_resched+0x10/0x10
[  590.922394][ T7687]  should_fail_ex+0x414/0x560
[  590.922428][ T7687]  should_failslab+0xa8/0x100
[  590.922458][ T7687]  kmem_cache_alloc_noprof+0x88/0x700
[  590.922482][ T7687]  ? security_inode_alloc+0x39/0x330
[  590.922522][ T7687]  security_inode_alloc+0x39/0x330
[  590.922549][ T7687]  inode_init_always_gfp+0x9ed/0xdc0
[  590.922586][ T7687]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  590.922608][ T7687]  alloc_inode+0x82/0x1b0
[  590.922637][ T7687]  new_inode+0x22/0x170
[  590.922671][ T7687]  __debugfs_create_file+0xb8/0x400
[  590.922697][ T7687]  debugfs_create_file_unsafe+0x3a/0x50
[  590.922721][ T7687]  nbd_start_device+0x3b6/0xb10
[  590.922762][ T7687]  nbd_ioctl+0x56e/0xe10
[  590.922799][ T7687]  ? __pfx_nbd_ioctl+0x10/0x10
[  590.922842][ T7687]  ? __pfx_nbd_ioctl+0x10/0x10
[  590.922873][ T7687]  blkdev_ioctl+0x60e/0x710
[  590.922902][ T7687]  ? __pfx_blkdev_ioctl+0x10/0x10
[  590.922924][ T7687]  ? __fget_files+0x3a0/0x420
[  590.922950][ T7687]  ? __fget_files+0x2a/0x420
[  590.922982][ T7687]  ? bpf_lsm_file_ioctl+0x9/0x20
[  590.923009][ T7687]  ? __pfx_blkdev_ioctl+0x10/0x10
[  590.923034][ T7687]  __se_sys_ioctl+0xfc/0x170
[  590.923060][ T7687]  do_syscall_64+0xfa/0xfa0
[  590.923081][ T7687]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  590.923100][ T7687]  ? clear_bhb_loop+0x60/0xb0
[  590.923125][ T7687]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  590.923142][ T7687] RIP: 0033:0x7f1191ab5569
[  590.923161][ T7687] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  590.923179][ T7687] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  590.923201][ T7687] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  590.923216][ T7687] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  590.923229][ T7687] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  590.923244][ T7687] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  590.923257][ T7687] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  590.923294][ T7687]  </TASK>
[  590.923325][ T7687] debugfs: out of free dentries, can not create file 'timeout'
[  591.232782][ T7687] block nbd0: shutting down sockets
[  591.362293][ T7691] block nbd0: Device being setup by another task
[  591.369109][ T7690] FAULT_INJECTION: forcing a failure.
[  591.369109][ T7690] name failslab, interval 1, probability 0, space 0, times 0
[  591.381822][ T7690] CPU: 1 UID: 0 PID: 7690 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  591.381840][ T7690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  591.381848][ T7690] Call Trace:
[  591.381854][ T7690]  <TASK>
[  591.381860][ T7690]  dump_stack_lvl+0x189/0x250
[  591.381883][ T7690]  ? __pfx____ratelimit+0x10/0x10
[  591.381902][ T7690]  ? __pfx_dump_stack_lvl+0x10/0x10
[  591.381920][ T7690]  ? __pfx__printk+0x10/0x10
[  591.381943][ T7690]  ? __pfx___might_resched+0x10/0x10
[  591.381969][ T7690]  should_fail_ex+0x414/0x560
[  591.381990][ T7690]  should_failslab+0xa8/0x100
[  591.382010][ T7690]  kmem_cache_alloc_noprof+0x88/0x700
[  591.382025][ T7690]  ? security_inode_alloc+0x39/0x330
[  591.382056][ T7690]  security_inode_alloc+0x39/0x330
[  591.382081][ T7690]  inode_init_always_gfp+0x9ed/0xdc0
[  591.382117][ T7690]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  591.382135][ T7690]  alloc_inode+0x82/0x1b0
[  591.382152][ T7690]  new_inode+0x22/0x170
[  591.382172][ T7690]  __debugfs_create_file+0xb8/0x400
[  591.382187][ T7690]  debugfs_create_file_unsafe+0x3a/0x50
[  591.382201][ T7690]  nbd_start_device+0x3b6/0xb10
[  591.382227][ T7690]  nbd_ioctl+0x56e/0xe10
[  591.382249][ T7690]  ? __pfx_nbd_ioctl+0x10/0x10
[  591.382274][ T7690]  ? __pfx_nbd_ioctl+0x10/0x10
[  591.382292][ T7690]  blkdev_ioctl+0x60e/0x710
[  591.382309][ T7690]  ? __pfx_blkdev_ioctl+0x10/0x10
[  591.382322][ T7690]  ? __fget_files+0x3a0/0x420
[  591.382338][ T7690]  ? __fget_files+0x2a/0x420
[  591.382357][ T7690]  ? bpf_lsm_file_ioctl+0x9/0x20
[  591.382374][ T7690]  ? __pfx_blkdev_ioctl+0x10/0x10
[  591.382389][ T7690]  __se_sys_ioctl+0xfc/0x170
[  591.382404][ T7690]  do_syscall_64+0xfa/0xfa0
[  591.382417][ T7690]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  591.382429][ T7690]  ? clear_bhb_loop+0x60/0xb0
[  591.382444][ T7690]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  591.382455][ T7690] RIP: 0033:0x7f1191ab5569
[  591.382468][ T7690] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  591.382479][ T7690] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  591.382494][ T7690] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  591.382503][ T7690] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  591.382511][ T7690] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  591.382527][ T7690] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  591.382535][ T7690] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  591.382556][ T7690]  </TASK>
[  591.641890][ T7690] debugfs: out of free dentries, can not create file 'timeout'
[  591.682372][ T7690] block nbd0: shutting down sockets
[  591.803218][ T7693] FAULT_INJECTION: forcing a failure.
[  591.803218][ T7693] name failslab, interval 1, probability 0, space 0, times 0
[  591.816024][ T7693] CPU: 0 UID: 0 PID: 7693 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  591.816067][ T7693] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  591.816075][ T7693] Call Trace:
[  591.816082][ T7693]  <TASK>
[  591.816088][ T7693]  dump_stack_lvl+0x189/0x250
[  591.816111][ T7693]  ? __pfx____ratelimit+0x10/0x10
[  591.816131][ T7693]  ? __pfx_dump_stack_lvl+0x10/0x10
[  591.816149][ T7693]  ? __pfx__printk+0x10/0x10
[  591.816167][ T7693]  ? __pfx___might_resched+0x10/0x10
[  591.816183][ T7693]  ? fs_reclaim_acquire+0x7d/0x100
[  591.816202][ T7693]  should_fail_ex+0x414/0x560
[  591.816222][ T7693]  should_failslab+0xa8/0x100
[  591.816240][ T7693]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  591.816255][ T7693]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  591.816272][ T7693]  sbitmap_queue_init_node+0x1dc/0x4d0
[  591.816287][ T7693]  blk_mq_init_tags+0x15c/0x2d0
[  591.816308][ T7693]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  591.816333][ T7693]  blk_mq_alloc_sched_tags+0x141/0x370
[  591.816352][ T7693]  blk_mq_alloc_sched_res+0x92/0x360
[  591.816370][ T7693]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  591.816387][ T7693]  ? _raw_spin_unlock+0x28/0x50
[  591.816404][ T7693]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  591.816422][ T7693]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  591.816443][ T7693]  ? nbd_start_device+0x174/0xb10
[  591.816463][ T7693]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  591.816477][ T7693]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  591.816500][ T7693]  ? nbd_ioctl+0x131/0xe10
[  591.816519][ T7693]  ? __pfx___mutex_lock+0x10/0x10
[  591.816535][ T7693]  nbd_start_device+0x17f/0xb10
[  591.816559][ T7693]  nbd_ioctl+0x56e/0xe10
[  591.816580][ T7693]  ? __pfx_nbd_ioctl+0x10/0x10
[  591.816605][ T7693]  ? __pfx_nbd_ioctl+0x10/0x10
[  591.816623][ T7693]  blkdev_ioctl+0x60e/0x710
[  591.816639][ T7693]  ? __pfx_blkdev_ioctl+0x10/0x10
[  591.816653][ T7693]  ? __fget_files+0x3a0/0x420
[  591.816669][ T7693]  ? __fget_files+0x2a/0x420
[  591.816688][ T7693]  ? bpf_lsm_file_ioctl+0x9/0x20
[  591.816704][ T7693]  ? __pfx_blkdev_ioctl+0x10/0x10
[  591.816719][ T7693]  __se_sys_ioctl+0xfc/0x170
[  591.816763][ T7693]  do_syscall_64+0xfa/0xfa0
[  591.816777][ T7693]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  591.816789][ T7693]  ? clear_bhb_loop+0x60/0xb0
[  591.816804][ T7693]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  591.816816][ T7693] RIP: 0033:0x7f1191ab5569
[  591.816829][ T7693] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  591.816839][ T7693] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  591.816855][ T7693] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  591.816864][ T7693] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  591.816872][ T7693] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  591.816880][ T7693] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  591.816888][ T7693] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  591.816909][ T7693]  </TASK>
[  592.241947][ T7693] block nbd0: shutting down sockets
[  592.333173][ T7695] FAULT_INJECTION: forcing a failure.
[  592.333173][ T7695] name failslab, interval 1, probability 0, space 0, times 0
[  592.347003][ T7695] CPU: 1 UID: 0 PID: 7695 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  592.347023][ T7695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  592.347031][ T7695] Call Trace:
[  592.347036][ T7695]  <TASK>
[  592.347042][ T7695]  dump_stack_lvl+0x189/0x250
[  592.347065][ T7695]  ? __pfx____ratelimit+0x10/0x10
[  592.347084][ T7695]  ? __pfx_dump_stack_lvl+0x10/0x10
[  592.347102][ T7695]  ? __pfx__printk+0x10/0x10
[  592.347120][ T7695]  ? __pfx___might_resched+0x10/0x10
[  592.347136][ T7695]  ? fs_reclaim_acquire+0x7d/0x100
[  592.347161][ T7695]  should_fail_ex+0x414/0x560
[  592.347195][ T7695]  should_failslab+0xa8/0x100
[  592.347224][ T7695]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  592.347249][ T7695]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  592.347269][ T7695]  sbitmap_queue_init_node+0x1dc/0x4d0
[  592.347284][ T7695]  blk_mq_init_tags+0x15c/0x2d0
[  592.347305][ T7695]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  592.347329][ T7695]  blk_mq_alloc_sched_tags+0x141/0x370
[  592.347350][ T7695]  blk_mq_alloc_sched_res+0x92/0x360
[  592.347368][ T7695]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  592.347394][ T7695]  ? _raw_spin_unlock+0x28/0x50
[  592.347415][ T7695]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  592.347433][ T7695]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  592.347462][ T7695]  ? nbd_start_device+0x174/0xb10
[  592.347482][ T7695]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  592.347497][ T7695]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  592.347518][ T7695]  ? nbd_ioctl+0x131/0xe10
[  592.347536][ T7695]  ? __pfx___mutex_lock+0x10/0x10
[  592.347552][ T7695]  nbd_start_device+0x17f/0xb10
[  592.347576][ T7695]  nbd_ioctl+0x56e/0xe10
[  592.347597][ T7695]  ? __pfx_nbd_ioctl+0x10/0x10
[  592.347621][ T7695]  ? __pfx_nbd_ioctl+0x10/0x10
[  592.347639][ T7695]  blkdev_ioctl+0x60e/0x710
[  592.347656][ T7695]  ? __pfx_blkdev_ioctl+0x10/0x10
[  592.347669][ T7695]  ? __fget_files+0x3a0/0x420
[  592.347686][ T7695]  ? __fget_files+0x2a/0x420
[  592.347707][ T7695]  ? bpf_lsm_file_ioctl+0x9/0x20
[  592.347723][ T7695]  ? __pfx_blkdev_ioctl+0x10/0x10
[  592.347738][ T7695]  __se_sys_ioctl+0xfc/0x170
[  592.347754][ T7695]  do_syscall_64+0xfa/0xfa0
[  592.347767][ T7695]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  592.347779][ T7695]  ? clear_bhb_loop+0x60/0xb0
[  592.347794][ T7695]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  592.347806][ T7695] RIP: 0033:0x7f1191ab5569
[  592.347819][ T7695] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  592.347829][ T7695] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  592.347845][ T7695] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  592.347854][ T7695] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  592.347862][ T7695] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  592.347871][ T7695] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  592.347879][ T7695] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  592.347899][ T7695]  </TASK>
[  592.699253][ T7695] block nbd0: shutting down sockets
[  592.793127][ T7697] FAULT_INJECTION: forcing a failure.
[  592.793127][ T7697] name failslab, interval 1, probability 0, space 0, times 0
[  592.806025][ T7697] CPU: 0 UID: 0 PID: 7697 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  592.806046][ T7697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  592.806055][ T7697] Call Trace:
[  592.806062][ T7697]  <TASK>
[  592.806069][ T7697]  dump_stack_lvl+0x189/0x250
[  592.806092][ T7697]  ? __pfx____ratelimit+0x10/0x10
[  592.806111][ T7697]  ? __pfx_dump_stack_lvl+0x10/0x10
[  592.806129][ T7697]  ? __pfx__printk+0x10/0x10
[  592.806145][ T7697]  ? __pfx___might_resched+0x10/0x10
[  592.806162][ T7697]  ? fs_reclaim_acquire+0x7d/0x100
[  592.806181][ T7697]  should_fail_ex+0x414/0x560
[  592.806201][ T7697]  should_failslab+0xa8/0x100
[  592.806219][ T7697]  __kvmalloc_node_noprof+0x175/0x910
[  592.806236][ T7697]  ? sbitmap_init_node+0x2cd/0x640
[  592.806252][ T7697]  sbitmap_init_node+0x2cd/0x640
[  592.806269][ T7697]  sbitmap_queue_init_node+0x3e/0x4d0
[  592.806285][ T7697]  blk_mq_init_tags+0x15c/0x2d0
[  592.806306][ T7697]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  592.806331][ T7697]  blk_mq_alloc_sched_tags+0x141/0x370
[  592.806351][ T7697]  blk_mq_alloc_sched_res+0x92/0x360
[  592.806369][ T7697]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  592.806385][ T7697]  ? _raw_spin_unlock+0x28/0x50
[  592.806401][ T7697]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  592.806419][ T7697]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  592.806440][ T7697]  ? nbd_start_device+0x174/0xb10
[  592.806460][ T7697]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  592.806483][ T7697]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  592.806504][ T7697]  ? nbd_ioctl+0x131/0xe10
[  592.806523][ T7697]  ? __pfx___mutex_lock+0x10/0x10
[  592.806539][ T7697]  nbd_start_device+0x17f/0xb10
[  592.806564][ T7697]  nbd_ioctl+0x56e/0xe10
[  592.806585][ T7697]  ? __pfx_nbd_ioctl+0x10/0x10
[  592.806609][ T7697]  ? __pfx_nbd_ioctl+0x10/0x10
[  592.806627][ T7697]  blkdev_ioctl+0x60e/0x710
[  592.806644][ T7697]  ? __pfx_blkdev_ioctl+0x10/0x10
[  592.806657][ T7697]  ? __fget_files+0x3a0/0x420
[  592.806674][ T7697]  ? __fget_files+0x2a/0x420
[  592.806693][ T7697]  ? bpf_lsm_file_ioctl+0x9/0x20
[  592.806710][ T7697]  ? __pfx_blkdev_ioctl+0x10/0x10
[  592.806725][ T7697]  __se_sys_ioctl+0xfc/0x170
[  592.806743][ T7697]  do_syscall_64+0xfa/0xfa0
[  592.806756][ T7697]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  592.806768][ T7697]  ? clear_bhb_loop+0x60/0xb0
[  592.806783][ T7697]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  592.806795][ T7697] RIP: 0033:0x7f1191ab5569
[  592.806808][ T7697] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  592.806819][ T7697] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  592.806834][ T7697] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  592.806844][ T7697] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  592.806852][ T7697] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  592.806860][ T7697] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  592.806868][ T7697] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  592.806888][ T7697]  </TASK>
[  593.142530][ T7697] block nbd0: shutting down sockets
[  593.253269][ T7699] FAULT_INJECTION: forcing a failure.
[  593.253269][ T7699] name failslab, interval 1, probability 0, space 0, times 0
[  593.266279][ T7699] CPU: 1 UID: 0 PID: 7699 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  593.266309][ T7699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  593.266322][ T7699] Call Trace:
[  593.266332][ T7699]  <TASK>
[  593.266341][ T7699]  dump_stack_lvl+0x189/0x250
[  593.266377][ T7699]  ? __pfx____ratelimit+0x10/0x10
[  593.266409][ T7699]  ? __pfx_dump_stack_lvl+0x10/0x10
[  593.266449][ T7699]  ? __pfx__printk+0x10/0x10
[  593.266481][ T7699]  ? __pfx___might_resched+0x10/0x10
[  593.266508][ T7699]  ? fs_reclaim_acquire+0x7d/0x100
[  593.266540][ T7699]  should_fail_ex+0x414/0x560
[  593.266574][ T7699]  should_failslab+0xa8/0x100
[  593.266604][ T7699]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  593.266630][ T7699]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  593.266659][ T7699]  sbitmap_queue_init_node+0x1dc/0x4d0
[  593.266685][ T7699]  blk_mq_init_tags+0x15c/0x2d0
[  593.266719][ T7699]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  593.266762][ T7699]  blk_mq_alloc_sched_tags+0x141/0x370
[  593.266797][ T7699]  blk_mq_alloc_sched_res+0x92/0x360
[  593.266829][ T7699]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  593.266857][ T7699]  ? _raw_spin_unlock+0x28/0x50
[  593.266884][ T7699]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  593.266915][ T7699]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  593.266949][ T7699]  ? nbd_start_device+0x174/0xb10
[  593.266984][ T7699]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  593.267010][ T7699]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  593.267045][ T7699]  ? nbd_ioctl+0x131/0xe10
[  593.267078][ T7699]  ? __pfx___mutex_lock+0x10/0x10
[  593.267106][ T7699]  nbd_start_device+0x17f/0xb10
[  593.267149][ T7699]  nbd_ioctl+0x56e/0xe10
[  593.267185][ T7699]  ? __pfx_nbd_ioctl+0x10/0x10
[  593.267228][ T7699]  ? __pfx_nbd_ioctl+0x10/0x10
[  593.267256][ T7699]  blkdev_ioctl+0x60e/0x710
[  593.267273][ T7699]  ? __pfx_blkdev_ioctl+0x10/0x10
[  593.267286][ T7699]  ? __fget_files+0x3a0/0x420
[  593.267302][ T7699]  ? __fget_files+0x2a/0x420
[  593.267321][ T7699]  ? bpf_lsm_file_ioctl+0x9/0x20
[  593.267338][ T7699]  ? __pfx_blkdev_ioctl+0x10/0x10
[  593.267352][ T7699]  __se_sys_ioctl+0xfc/0x170
[  593.267378][ T7699]  do_syscall_64+0xfa/0xfa0
[  593.267391][ T7699]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  593.267403][ T7699]  ? clear_bhb_loop+0x60/0xb0
[  593.267418][ T7699]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  593.267429][ T7699] RIP: 0033:0x7f1191ab5569
[  593.267449][ T7699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  593.267460][ T7699] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  593.267475][ T7699] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  593.267485][ T7699] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  593.267493][ T7699] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  593.267501][ T7699] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  593.267509][ T7699] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  593.267529][ T7699]  </TASK>
[  593.689928][ T7699] block nbd0: shutting down sockets
[  593.783081][ T7701] FAULT_INJECTION: forcing a failure.
[  593.783081][ T7701] name failslab, interval 1, probability 0, space 0, times 0
[  593.796039][ T7701] CPU: 0 UID: 0 PID: 7701 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  593.796059][ T7701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  593.796067][ T7701] Call Trace:
[  593.796076][ T7701]  <TASK>
[  593.796082][ T7701]  dump_stack_lvl+0x189/0x250
[  593.796106][ T7701]  ? __pfx____ratelimit+0x10/0x10
[  593.796126][ T7701]  ? __pfx_dump_stack_lvl+0x10/0x10
[  593.796144][ T7701]  ? __pfx__printk+0x10/0x10
[  593.796162][ T7701]  ? __pfx___might_resched+0x10/0x10
[  593.796179][ T7701]  ? fs_reclaim_acquire+0x7d/0x100
[  593.796197][ T7701]  should_fail_ex+0x414/0x560
[  593.796217][ T7701]  should_failslab+0xa8/0x100
[  593.796235][ T7701]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  593.796251][ T7701]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  593.796268][ T7701]  sbitmap_queue_init_node+0x1dc/0x4d0
[  593.796282][ T7701]  blk_mq_init_tags+0x15c/0x2d0
[  593.796303][ T7701]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  593.796328][ T7701]  blk_mq_alloc_sched_tags+0x141/0x370
[  593.796348][ T7701]  blk_mq_alloc_sched_res+0x92/0x360
[  593.796366][ T7701]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  593.796382][ T7701]  ? _raw_spin_unlock+0x28/0x50
[  593.796399][ T7701]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  593.796417][ T7701]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  593.796462][ T7701]  ? nbd_start_device+0x174/0xb10
[  593.796483][ T7701]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  593.796498][ T7701]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  593.796519][ T7701]  ? nbd_ioctl+0x131/0xe10
[  593.796538][ T7701]  ? __pfx___mutex_lock+0x10/0x10
[  593.796553][ T7701]  nbd_start_device+0x17f/0xb10
[  593.796578][ T7701]  nbd_ioctl+0x56e/0xe10
[  593.796599][ T7701]  ? __pfx_nbd_ioctl+0x10/0x10
[  593.796623][ T7701]  ? __pfx_nbd_ioctl+0x10/0x10
[  593.796642][ T7701]  blkdev_ioctl+0x60e/0x710
[  593.796658][ T7701]  ? __pfx_blkdev_ioctl+0x10/0x10
[  593.796673][ T7701]  ? __fget_files+0x3a0/0x420
[  593.796692][ T7701]  ? __fget_files+0x2a/0x420
[  593.796710][ T7701]  ? bpf_lsm_file_ioctl+0x9/0x20
[  593.796727][ T7701]  ? __pfx_blkdev_ioctl+0x10/0x10
[  593.796741][ T7701]  __se_sys_ioctl+0xfc/0x170
[  593.796757][ T7701]  do_syscall_64+0xfa/0xfa0
[  593.796769][ T7701]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  593.796782][ T7701]  ? clear_bhb_loop+0x60/0xb0
[  593.796797][ T7701]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  593.796809][ T7701] RIP: 0033:0x7f1191ab5569
[  593.796822][ T7701] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  593.796833][ T7701] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  593.796848][ T7701] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  593.796858][ T7701] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  593.796866][ T7701] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  593.796874][ T7701] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  593.796883][ T7701] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  593.796903][ T7701]  </TASK>
[  594.132755][ T7701] block nbd0: shutting down sockets
[  594.213845][ T7703] FAULT_INJECTION: forcing a failure.
[  594.213845][ T7703] name failslab, interval 1, probability 0, space 0, times 0
[  594.226591][ T7703] CPU: 1 UID: 0 PID: 7703 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  594.226615][ T7703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  594.226625][ T7703] Call Trace:
[  594.226634][ T7703]  <TASK>
[  594.226641][ T7703]  dump_stack_lvl+0x189/0x250
[  594.226671][ T7703]  ? __pfx____ratelimit+0x10/0x10
[  594.226697][ T7703]  ? __pfx_dump_stack_lvl+0x10/0x10
[  594.226721][ T7703]  ? __pfx__printk+0x10/0x10
[  594.226745][ T7703]  ? __pfx___might_resched+0x10/0x10
[  594.226767][ T7703]  ? fs_reclaim_acquire+0x7d/0x100
[  594.226795][ T7703]  should_fail_ex+0x414/0x560
[  594.226822][ T7703]  should_failslab+0xa8/0x100
[  594.226846][ T7703]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  594.226868][ T7703]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  594.226890][ T7703]  sbitmap_queue_init_node+0x1dc/0x4d0
[  594.226909][ T7703]  blk_mq_init_tags+0x15c/0x2d0
[  594.226938][ T7703]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  594.226972][ T7703]  blk_mq_alloc_sched_tags+0x141/0x370
[  594.227000][ T7703]  blk_mq_alloc_sched_res+0x92/0x360
[  594.227024][ T7703]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  594.227046][ T7703]  ? _raw_spin_unlock+0x28/0x50
[  594.227068][ T7703]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  594.227092][ T7703]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  594.227120][ T7703]  ? nbd_start_device+0x174/0xb10
[  594.227147][ T7703]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  594.227167][ T7703]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  594.227195][ T7703]  ? nbd_ioctl+0x131/0xe10
[  594.227220][ T7703]  ? __pfx___mutex_lock+0x10/0x10
[  594.227242][ T7703]  nbd_start_device+0x17f/0xb10
[  594.227275][ T7703]  nbd_ioctl+0x56e/0xe10
[  594.227303][ T7703]  ? __pfx_nbd_ioctl+0x10/0x10
[  594.227337][ T7703]  ? __pfx_nbd_ioctl+0x10/0x10
[  594.227362][ T7703]  blkdev_ioctl+0x60e/0x710
[  594.227384][ T7703]  ? __pfx_blkdev_ioctl+0x10/0x10
[  594.227401][ T7703]  ? __fget_files+0x3a0/0x420
[  594.227423][ T7703]  ? __fget_files+0x2a/0x420
[  594.227449][ T7703]  ? bpf_lsm_file_ioctl+0x9/0x20
[  594.227471][ T7703]  ? __pfx_blkdev_ioctl+0x10/0x10
[  594.227491][ T7703]  __se_sys_ioctl+0xfc/0x170
[  594.227511][ T7703]  do_syscall_64+0xfa/0xfa0
[  594.227535][ T7703]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  594.227552][ T7703]  ? clear_bhb_loop+0x60/0xb0
[  594.227572][ T7703]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  594.227592][ T7703] RIP: 0033:0x7f1191ab5569
[  594.227608][ T7703] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  594.227622][ T7703] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  594.227642][ T7703] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  594.227654][ T7703] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  594.227665][ T7703] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  594.227676][ T7703] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  594.227687][ T7703] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  594.227716][ T7703]  </TASK>
[  594.608512][ T7703] block nbd0: shutting down sockets
[  594.703224][ T7705] FAULT_INJECTION: forcing a failure.
[  594.703224][ T7705] name failslab, interval 1, probability 0, space 0, times 0
[  594.716136][ T7705] CPU: 0 UID: 0 PID: 7705 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  594.716164][ T7705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  594.716177][ T7705] Call Trace:
[  594.716190][ T7705]  <TASK>
[  594.716200][ T7705]  dump_stack_lvl+0x189/0x250
[  594.716232][ T7705]  ? __pfx____ratelimit+0x10/0x10
[  594.716251][ T7705]  ? __pfx_dump_stack_lvl+0x10/0x10
[  594.716270][ T7705]  ? __pfx__printk+0x10/0x10
[  594.716288][ T7705]  ? __pfx___might_resched+0x10/0x10
[  594.716305][ T7705]  ? fs_reclaim_acquire+0x7d/0x100
[  594.716324][ T7705]  should_fail_ex+0x414/0x560
[  594.716344][ T7705]  should_failslab+0xa8/0x100
[  594.716363][ T7705]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  594.716379][ T7705]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  594.716395][ T7705]  sbitmap_queue_init_node+0x1dc/0x4d0
[  594.716410][ T7705]  blk_mq_init_tags+0x15c/0x2d0
[  594.716431][ T7705]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  594.716455][ T7705]  blk_mq_alloc_sched_tags+0x141/0x370
[  594.716475][ T7705]  blk_mq_alloc_sched_res+0x92/0x360
[  594.716500][ T7705]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  594.716523][ T7705]  ? _raw_spin_unlock+0x28/0x50
[  594.716541][ T7705]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  594.716559][ T7705]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  594.716580][ T7705]  ? nbd_start_device+0x174/0xb10
[  594.716600][ T7705]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  594.716615][ T7705]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  594.716635][ T7705]  ? nbd_ioctl+0x131/0xe10
[  594.716655][ T7705]  ? __pfx___mutex_lock+0x10/0x10
[  594.716670][ T7705]  nbd_start_device+0x17f/0xb10
[  594.716695][ T7705]  nbd_ioctl+0x56e/0xe10
[  594.716716][ T7705]  ? __pfx_nbd_ioctl+0x10/0x10
[  594.716750][ T7705]  ? __pfx_nbd_ioctl+0x10/0x10
[  594.716768][ T7705]  blkdev_ioctl+0x60e/0x710
[  594.716785][ T7705]  ? __pfx_blkdev_ioctl+0x10/0x10
[  594.716799][ T7705]  ? __fget_files+0x3a0/0x420
[  594.716815][ T7705]  ? __fget_files+0x2a/0x420
[  594.716834][ T7705]  ? bpf_lsm_file_ioctl+0x9/0x20
[  594.716852][ T7705]  ? __pfx_blkdev_ioctl+0x10/0x10
[  594.716867][ T7705]  __se_sys_ioctl+0xfc/0x170
[  594.716882][ T7705]  do_syscall_64+0xfa/0xfa0
[  594.716895][ T7705]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  594.716907][ T7705]  ? clear_bhb_loop+0x60/0xb0
[  594.716922][ T7705]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  594.716934][ T7705] RIP: 0033:0x7f1191ab5569
[  594.716948][ T7705] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  594.716959][ T7705] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  594.716974][ T7705] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  594.716984][ T7705] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  594.716992][ T7705] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  594.717000][ T7705] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  594.717008][ T7705] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  594.717028][ T7705]  </TASK>
[  595.139043][ T7705] block nbd0: shutting down sockets
[  595.243374][ T7707] FAULT_INJECTION: forcing a failure.
[  595.243374][ T7707] name failslab, interval 1, probability 0, space 0, times 0
[  595.256228][ T7707] CPU: 1 UID: 0 PID: 7707 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  595.256256][ T7707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  595.256268][ T7707] Call Trace:
[  595.256278][ T7707]  <TASK>
[  595.256286][ T7707]  dump_stack_lvl+0x189/0x250
[  595.256313][ T7707]  ? __pfx____ratelimit+0x10/0x10
[  595.256333][ T7707]  ? __pfx_dump_stack_lvl+0x10/0x10
[  595.256352][ T7707]  ? __pfx__printk+0x10/0x10
[  595.256369][ T7707]  ? __pfx___might_resched+0x10/0x10
[  595.256386][ T7707]  ? fs_reclaim_acquire+0x7d/0x100
[  595.256404][ T7707]  should_fail_ex+0x414/0x560
[  595.256424][ T7707]  should_failslab+0xa8/0x100
[  595.256442][ T7707]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  595.256458][ T7707]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  595.256474][ T7707]  sbitmap_queue_init_node+0x1dc/0x4d0
[  595.256488][ T7707]  blk_mq_init_tags+0x15c/0x2d0
[  595.256509][ T7707]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  595.256534][ T7707]  blk_mq_alloc_sched_tags+0x141/0x370
[  595.256553][ T7707]  blk_mq_alloc_sched_res+0x92/0x360
[  595.256571][ T7707]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  595.256587][ T7707]  ? _raw_spin_unlock+0x28/0x50
[  595.256603][ T7707]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  595.256621][ T7707]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  595.256642][ T7707]  ? nbd_start_device+0x174/0xb10
[  595.256662][ T7707]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  595.256677][ T7707]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  595.256697][ T7707]  ? nbd_ioctl+0x131/0xe10
[  595.256724][ T7707]  ? __pfx___mutex_lock+0x10/0x10
[  595.256739][ T7707]  nbd_start_device+0x17f/0xb10
[  595.256763][ T7707]  nbd_ioctl+0x56e/0xe10
[  595.256784][ T7707]  ? __pfx_nbd_ioctl+0x10/0x10
[  595.256809][ T7707]  ? __pfx_nbd_ioctl+0x10/0x10
[  595.256827][ T7707]  blkdev_ioctl+0x60e/0x710
[  595.256843][ T7707]  ? __pfx_blkdev_ioctl+0x10/0x10
[  595.256856][ T7707]  ? __fget_files+0x3a0/0x420
[  595.256872][ T7707]  ? __fget_files+0x2a/0x420
[  595.256891][ T7707]  ? bpf_lsm_file_ioctl+0x9/0x20
[  595.256909][ T7707]  ? __pfx_blkdev_ioctl+0x10/0x10
[  595.256923][ T7707]  __se_sys_ioctl+0xfc/0x170
[  595.256938][ T7707]  do_syscall_64+0xfa/0xfa0
[  595.256951][ T7707]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  595.256963][ T7707]  ? clear_bhb_loop+0x60/0xb0
[  595.256978][ T7707]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  595.256989][ T7707] RIP: 0033:0x7f1191ab5569
[  595.257002][ T7707] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  595.257013][ T7707] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  595.257028][ T7707] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  595.257038][ T7707] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  595.257046][ T7707] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  595.257055][ T7707] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  595.257063][ T7707] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  595.257083][ T7707]  </TASK>
[  595.602515][ T7707] block nbd0: shutting down sockets
[  595.662835][ T7709] block nbd0: Device being setup by another task
[  595.712203][ T7709] block nbd0: Device being setup by another task
[  595.813094][ T7711] FAULT_INJECTION: forcing a failure.
[  595.813094][ T7711] name failslab, interval 1, probability 0, space 0, times 0
[  595.825887][ T7711] CPU: 0 UID: 0 PID: 7711 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  595.825916][ T7711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  595.825929][ T7711] Call Trace:
[  595.825939][ T7711]  <TASK>
[  595.825946][ T7711]  dump_stack_lvl+0x189/0x250
[  595.825968][ T7711]  ? __pfx____ratelimit+0x10/0x10
[  595.825988][ T7711]  ? __pfx_dump_stack_lvl+0x10/0x10
[  595.826006][ T7711]  ? __pfx__printk+0x10/0x10
[  595.826024][ T7711]  ? __pfx___might_resched+0x10/0x10
[  595.826041][ T7711]  ? fs_reclaim_acquire+0x7d/0x100
[  595.826059][ T7711]  should_fail_ex+0x414/0x560
[  595.826081][ T7711]  should_failslab+0xa8/0x100
[  595.826099][ T7711]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  595.826115][ T7711]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  595.826131][ T7711]  sbitmap_queue_init_node+0x1dc/0x4d0
[  595.826146][ T7711]  blk_mq_init_tags+0x15c/0x2d0
[  595.826167][ T7711]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  595.826192][ T7711]  blk_mq_alloc_sched_tags+0x141/0x370
[  595.826211][ T7711]  blk_mq_alloc_sched_res+0x92/0x360
[  595.826229][ T7711]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  595.826246][ T7711]  ? _raw_spin_unlock+0x28/0x50
[  595.826262][ T7711]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  595.826284][ T7711]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  595.826318][ T7711]  ? nbd_start_device+0x174/0xb10
[  595.826351][ T7711]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  595.826372][ T7711]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  595.826393][ T7711]  ? nbd_ioctl+0x131/0xe10
[  595.826415][ T7711]  ? __pfx___mutex_lock+0x10/0x10
[  595.826430][ T7711]  nbd_start_device+0x17f/0xb10
[  595.826455][ T7711]  nbd_ioctl+0x56e/0xe10
[  595.826475][ T7711]  ? __pfx_nbd_ioctl+0x10/0x10
[  595.826500][ T7711]  ? __pfx_nbd_ioctl+0x10/0x10
[  595.826518][ T7711]  blkdev_ioctl+0x60e/0x710
[  595.826535][ T7711]  ? __pfx_blkdev_ioctl+0x10/0x10
[  595.826548][ T7711]  ? __fget_files+0x3a0/0x420
[  595.826564][ T7711]  ? __fget_files+0x2a/0x420
[  595.826583][ T7711]  ? bpf_lsm_file_ioctl+0x9/0x20
[  595.826602][ T7711]  ? __pfx_blkdev_ioctl+0x10/0x10
[  595.826617][ T7711]  __se_sys_ioctl+0xfc/0x170
[  595.826632][ T7711]  do_syscall_64+0xfa/0xfa0
[  595.826645][ T7711]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  595.826665][ T7711]  ? clear_bhb_loop+0x60/0xb0
[  595.826679][ T7711]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  595.826691][ T7711] RIP: 0033:0x7f1191ab5569
[  595.826703][ T7711] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  595.826715][ T7711] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  595.826730][ T7711] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  595.826740][ T7711] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  595.826748][ T7711] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  595.826756][ T7711] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  595.826764][ T7711] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  595.826784][ T7711]  </TASK>
[  596.182527][ T7711] block nbd0: shutting down sockets
[  596.283254][ T7713] FAULT_INJECTION: forcing a failure.
[  596.283254][ T7713] name failslab, interval 1, probability 0, space 0, times 0
[  596.296190][ T7713] CPU: 1 UID: 0 PID: 7713 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  596.296210][ T7713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  596.296218][ T7713] Call Trace:
[  596.296226][ T7713]  <TASK>
[  596.296233][ T7713]  dump_stack_lvl+0x189/0x250
[  596.296256][ T7713]  ? __pfx____ratelimit+0x10/0x10
[  596.296276][ T7713]  ? __pfx_dump_stack_lvl+0x10/0x10
[  596.296294][ T7713]  ? __pfx__printk+0x10/0x10
[  596.296312][ T7713]  ? __pfx___might_resched+0x10/0x10
[  596.296328][ T7713]  ? fs_reclaim_acquire+0x7d/0x100
[  596.296347][ T7713]  should_fail_ex+0x414/0x560
[  596.296367][ T7713]  should_failslab+0xa8/0x100
[  596.296386][ T7713]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  596.296402][ T7713]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  596.296418][ T7713]  sbitmap_queue_init_node+0x1dc/0x4d0
[  596.296432][ T7713]  blk_mq_init_tags+0x15c/0x2d0
[  596.296455][ T7713]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  596.296482][ T7713]  blk_mq_alloc_sched_tags+0x141/0x370
[  596.296501][ T7713]  blk_mq_alloc_sched_res+0x92/0x360
[  596.296519][ T7713]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  596.296536][ T7713]  ? _raw_spin_unlock+0x28/0x50
[  596.296552][ T7713]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  596.296570][ T7713]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  596.296590][ T7713]  ? nbd_start_device+0x174/0xb10
[  596.296615][ T7713]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  596.296630][ T7713]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  596.296650][ T7713]  ? nbd_ioctl+0x131/0xe10
[  596.296669][ T7713]  ? __pfx___mutex_lock+0x10/0x10
[  596.296685][ T7713]  nbd_start_device+0x17f/0xb10
[  596.296720][ T7713]  nbd_ioctl+0x56e/0xe10
[  596.296741][ T7713]  ? __pfx_nbd_ioctl+0x10/0x10
[  596.296781][ T7713]  ? __pfx_nbd_ioctl+0x10/0x10
[  596.296806][ T7713]  blkdev_ioctl+0x60e/0x710
[  596.296823][ T7713]  ? __pfx_blkdev_ioctl+0x10/0x10
[  596.296836][ T7713]  ? __fget_files+0x3a0/0x420
[  596.296861][ T7713]  ? __fget_files+0x2a/0x420
[  596.296880][ T7713]  ? bpf_lsm_file_ioctl+0x9/0x20
[  596.296896][ T7713]  ? __pfx_blkdev_ioctl+0x10/0x10
[  596.296911][ T7713]  __se_sys_ioctl+0xfc/0x170
[  596.296928][ T7713]  do_syscall_64+0xfa/0xfa0
[  596.296942][ T7713]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  596.296953][ T7713]  ? clear_bhb_loop+0x60/0xb0
[  596.296968][ T7713]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  596.296980][ T7713] RIP: 0033:0x7f1191ab5569
[  596.296993][ T7713] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  596.297004][ T7713] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  596.297021][ T7713] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  596.297037][ T7713] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  596.297050][ T7713] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  596.297064][ T7713] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  596.297076][ T7713] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  596.297111][ T7713]  </TASK>
[  596.724488][ T7713] block nbd0: shutting down sockets
[  596.862298][ T7716] block nbd0: Device being setup by another task
[  596.869404][ T7715] FAULT_INJECTION: forcing a failure.
[  596.869404][ T7715] name failslab, interval 1, probability 0, space 0, times 0
[  596.882520][ T7715] CPU: 0 UID: 0 PID: 7715 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  596.882543][ T7715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  596.882551][ T7715] Call Trace:
[  596.882557][ T7715]  <TASK>
[  596.882563][ T7715]  dump_stack_lvl+0x189/0x250
[  596.882588][ T7715]  ? __pfx____ratelimit+0x10/0x10
[  596.882607][ T7715]  ? __pfx_dump_stack_lvl+0x10/0x10
[  596.882631][ T7715]  ? __pfx__printk+0x10/0x10
[  596.882663][ T7715]  ? __pfx___might_resched+0x10/0x10
[  596.882685][ T7715]  should_fail_ex+0x414/0x560
[  596.882705][ T7715]  should_failslab+0xa8/0x100
[  596.882724][ T7715]  kmem_cache_alloc_noprof+0x88/0x700
[  596.882739][ T7715]  ? security_inode_alloc+0x39/0x330
[  596.882755][ T7715]  security_inode_alloc+0x39/0x330
[  596.882770][ T7715]  inode_init_always_gfp+0x9ed/0xdc0
[  596.882791][ T7715]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  596.882803][ T7715]  alloc_inode+0x82/0x1b0
[  596.882821][ T7715]  new_inode+0x22/0x170
[  596.882840][ T7715]  __debugfs_create_file+0xb8/0x400
[  596.882855][ T7715]  debugfs_create_file_unsafe+0x3a/0x50
[  596.882869][ T7715]  nbd_start_device+0x3b6/0xb10
[  596.882895][ T7715]  nbd_ioctl+0x56e/0xe10
[  596.882916][ T7715]  ? __pfx_nbd_ioctl+0x10/0x10
[  596.882941][ T7715]  ? __pfx_nbd_ioctl+0x10/0x10
[  596.882959][ T7715]  blkdev_ioctl+0x60e/0x710
[  596.882976][ T7715]  ? __pfx_blkdev_ioctl+0x10/0x10
[  596.882989][ T7715]  ? __fget_files+0x3a0/0x420
[  596.883005][ T7715]  ? __fget_files+0x2a/0x420
[  596.883024][ T7715]  ? bpf_lsm_file_ioctl+0x9/0x20
[  596.883040][ T7715]  ? __pfx_blkdev_ioctl+0x10/0x10
[  596.883055][ T7715]  __se_sys_ioctl+0xfc/0x170
[  596.883071][ T7715]  do_syscall_64+0xfa/0xfa0
[  596.883084][ T7715]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  596.883096][ T7715]  ? clear_bhb_loop+0x60/0xb0
[  596.883110][ T7715]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  596.883122][ T7715] RIP: 0033:0x7f1191ab5569
[  596.883135][ T7715] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  596.883146][ T7715] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  596.883161][ T7715] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  596.883170][ T7715] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  596.883177][ T7715] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  596.883186][ T7715] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  596.883194][ T7715] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  596.883214][ T7715]  </TASK>
[  596.883234][ T7715] debugfs: out of free dentries, can not create file 'timeout'
[  597.193572][ T7715] block nbd0: shutting down sockets
[  597.283102][ T7718] FAULT_INJECTION: forcing a failure.
[  597.283102][ T7718] name failslab, interval 1, probability 0, space 0, times 0
[  597.296114][ T7718] CPU: 0 UID: 0 PID: 7718 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  597.296134][ T7718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  597.296142][ T7718] Call Trace:
[  597.296149][ T7718]  <TASK>
[  597.296155][ T7718]  dump_stack_lvl+0x189/0x250
[  597.296177][ T7718]  ? __pfx____ratelimit+0x10/0x10
[  597.296197][ T7718]  ? __pfx_dump_stack_lvl+0x10/0x10
[  597.296215][ T7718]  ? __pfx__printk+0x10/0x10
[  597.296233][ T7718]  ? __pfx___might_resched+0x10/0x10
[  597.296249][ T7718]  ? fs_reclaim_acquire+0x7d/0x100
[  597.296268][ T7718]  should_fail_ex+0x414/0x560
[  597.296289][ T7718]  should_failslab+0xa8/0x100
[  597.296307][ T7718]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  597.296323][ T7718]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  597.296339][ T7718]  sbitmap_queue_init_node+0x1dc/0x4d0
[  597.296353][ T7718]  blk_mq_init_tags+0x15c/0x2d0
[  597.296375][ T7718]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  597.296399][ T7718]  blk_mq_alloc_sched_tags+0x141/0x370
[  597.296422][ T7718]  blk_mq_alloc_sched_res+0x92/0x360
[  597.296440][ T7718]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  597.296457][ T7718]  ? _raw_spin_unlock+0x28/0x50
[  597.296473][ T7718]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  597.296491][ T7718]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  597.296512][ T7718]  ? nbd_start_device+0x174/0xb10
[  597.296532][ T7718]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  597.296547][ T7718]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  597.296567][ T7718]  ? nbd_ioctl+0x131/0xe10
[  597.296586][ T7718]  ? __pfx___mutex_lock+0x10/0x10
[  597.296602][ T7718]  nbd_start_device+0x17f/0xb10
[  597.296626][ T7718]  nbd_ioctl+0x56e/0xe10
[  597.296647][ T7718]  ? __pfx_nbd_ioctl+0x10/0x10
[  597.296679][ T7718]  ? __pfx_nbd_ioctl+0x10/0x10
[  597.296697][ T7718]  blkdev_ioctl+0x60e/0x710
[  597.296713][ T7718]  ? __pfx_blkdev_ioctl+0x10/0x10
[  597.296726][ T7718]  ? __fget_files+0x3a0/0x420
[  597.296742][ T7718]  ? __fget_files+0x2a/0x420
[  597.296761][ T7718]  ? bpf_lsm_file_ioctl+0x9/0x20
[  597.296778][ T7718]  ? __pfx_blkdev_ioctl+0x10/0x10
[  597.296793][ T7718]  __se_sys_ioctl+0xfc/0x170
[  597.296808][ T7718]  do_syscall_64+0xfa/0xfa0
[  597.296822][ T7718]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  597.296834][ T7718]  ? clear_bhb_loop+0x60/0xb0
[  597.296848][ T7718]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  597.296860][ T7718] RIP: 0033:0x7f1191ab5569
[  597.296873][ T7718] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  597.296884][ T7718] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  597.296899][ T7718] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  597.296908][ T7718] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  597.296916][ T7718] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  597.296924][ T7718] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  597.296932][ T7718] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  597.296952][ T7718]  </TASK>
[  597.699342][ T7718] block nbd0: shutting down sockets
[  597.822367][ T7721] block nbd0: Device being setup by another task
[  597.829339][ T7720] FAULT_INJECTION: forcing a failure.
[  597.829339][ T7720] name failslab, interval 1, probability 0, space 0, times 0
[  597.842161][ T7720] CPU: 1 UID: 0 PID: 7720 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  597.842181][ T7720] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  597.842190][ T7720] Call Trace:
[  597.842196][ T7720]  <TASK>
[  597.842202][ T7720]  dump_stack_lvl+0x189/0x250
[  597.842225][ T7720]  ? __pfx____ratelimit+0x10/0x10
[  597.842245][ T7720]  ? __pfx_dump_stack_lvl+0x10/0x10
[  597.842263][ T7720]  ? __pfx__printk+0x10/0x10
[  597.842286][ T7720]  ? __pfx___might_resched+0x10/0x10
[  597.842307][ T7720]  should_fail_ex+0x414/0x560
[  597.842328][ T7720]  should_failslab+0xa8/0x100
[  597.842346][ T7720]  kmem_cache_alloc_noprof+0x88/0x700
[  597.842361][ T7720]  ? security_inode_alloc+0x39/0x330
[  597.842378][ T7720]  security_inode_alloc+0x39/0x330
[  597.842393][ T7720]  inode_init_always_gfp+0x9ed/0xdc0
[  597.842414][ T7720]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  597.842427][ T7720]  alloc_inode+0x82/0x1b0
[  597.842444][ T7720]  new_inode+0x22/0x170
[  597.842464][ T7720]  __debugfs_create_file+0xb8/0x400
[  597.842479][ T7720]  debugfs_create_file_unsafe+0x3a/0x50
[  597.842494][ T7720]  nbd_start_device+0x3b6/0xb10
[  597.842519][ T7720]  nbd_ioctl+0x56e/0xe10
[  597.842541][ T7720]  ? __pfx_nbd_ioctl+0x10/0x10
[  597.842567][ T7720]  ? __pfx_nbd_ioctl+0x10/0x10
[  597.842585][ T7720]  blkdev_ioctl+0x60e/0x710
[  597.842603][ T7720]  ? __pfx_blkdev_ioctl+0x10/0x10
[  597.842616][ T7720]  ? __fget_files+0x3a0/0x420
[  597.842639][ T7720]  ? __fget_files+0x2a/0x420
[  597.842658][ T7720]  ? bpf_lsm_file_ioctl+0x9/0x20
[  597.842675][ T7720]  ? __pfx_blkdev_ioctl+0x10/0x10
[  597.842690][ T7720]  __se_sys_ioctl+0xfc/0x170
[  597.842706][ T7720]  do_syscall_64+0xfa/0xfa0
[  597.842719][ T7720]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  597.842731][ T7720]  ? clear_bhb_loop+0x60/0xb0
[  597.842746][ T7720]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  597.842765][ T7720] RIP: 0033:0x7f1191ab5569
[  597.842777][ T7720] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  597.842788][ T7720] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  597.842803][ T7720] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  597.842812][ T7720] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  597.842821][ T7720] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  597.842829][ T7720] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  597.842837][ T7720] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  597.842857][ T7720]  </TASK>
[  597.842908][ T7720] debugfs: out of free dentries, can not create file 'timeout'
[  598.162550][ T7720] block nbd0: shutting down sockets
[  598.263121][ T7723] FAULT_INJECTION: forcing a failure.
[  598.263121][ T7723] name failslab, interval 1, probability 0, space 0, times 0
[  598.276402][ T7723] CPU: 0 UID: 0 PID: 7723 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  598.276431][ T7723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  598.276444][ T7723] Call Trace:
[  598.276453][ T7723]  <TASK>
[  598.276462][ T7723]  dump_stack_lvl+0x189/0x250
[  598.276491][ T7723]  ? __pfx____ratelimit+0x10/0x10
[  598.276511][ T7723]  ? __pfx_dump_stack_lvl+0x10/0x10
[  598.276528][ T7723]  ? __pfx__printk+0x10/0x10
[  598.276544][ T7723]  ? __pfx___might_resched+0x10/0x10
[  598.276563][ T7723]  ? fs_reclaim_acquire+0x7d/0x100
[  598.276581][ T7723]  should_fail_ex+0x414/0x560
[  598.276601][ T7723]  should_failslab+0xa8/0x100
[  598.276618][ T7723]  __kvmalloc_node_noprof+0x175/0x910
[  598.276636][ T7723]  ? sbitmap_init_node+0x2cd/0x640
[  598.276651][ T7723]  sbitmap_init_node+0x2cd/0x640
[  598.276669][ T7723]  sbitmap_queue_init_node+0x3e/0x4d0
[  598.276684][ T7723]  blk_mq_init_tags+0x15c/0x2d0
[  598.276705][ T7723]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  598.276738][ T7723]  blk_mq_alloc_sched_tags+0x141/0x370
[  598.276757][ T7723]  blk_mq_alloc_sched_res+0x92/0x360
[  598.276775][ T7723]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  598.276791][ T7723]  ? _raw_spin_unlock+0x28/0x50
[  598.276808][ T7723]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  598.276826][ T7723]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  598.276846][ T7723]  ? nbd_start_device+0x174/0xb10
[  598.276866][ T7723]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  598.276881][ T7723]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  598.276902][ T7723]  ? nbd_ioctl+0x131/0xe10
[  598.276921][ T7723]  ? __pfx___mutex_lock+0x10/0x10
[  598.276937][ T7723]  nbd_start_device+0x17f/0xb10
[  598.276961][ T7723]  nbd_ioctl+0x56e/0xe10
[  598.276982][ T7723]  ? __pfx_nbd_ioctl+0x10/0x10
[  598.277006][ T7723]  ? __pfx_nbd_ioctl+0x10/0x10
[  598.277024][ T7723]  blkdev_ioctl+0x60e/0x710
[  598.277041][ T7723]  ? __pfx_blkdev_ioctl+0x10/0x10
[  598.277054][ T7723]  ? __fget_files+0x3a0/0x420
[  598.277071][ T7723]  ? __fget_files+0x2a/0x420
[  598.277089][ T7723]  ? bpf_lsm_file_ioctl+0x9/0x20
[  598.277106][ T7723]  ? __pfx_blkdev_ioctl+0x10/0x10
[  598.277121][ T7723]  __se_sys_ioctl+0xfc/0x170
[  598.277136][ T7723]  do_syscall_64+0xfa/0xfa0
[  598.277148][ T7723]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  598.277160][ T7723]  ? clear_bhb_loop+0x60/0xb0
[  598.277176][ T7723]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  598.277187][ T7723] RIP: 0033:0x7f1191ab5569
[  598.277200][ T7723] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  598.277211][ T7723] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  598.277226][ T7723] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  598.277236][ T7723] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  598.277243][ T7723] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  598.277252][ T7723] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  598.277260][ T7723] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  598.277279][ T7723]  </TASK>
[  598.612379][ T7723] block nbd0: shutting down sockets
[  598.742275][ T7726] block nbd0: Device being setup by another task
[  598.748980][ T7725] FAULT_INJECTION: forcing a failure.
[  598.748980][ T7725] name failslab, interval 1, probability 0, space 0, times 0
[  598.761689][ T7725] CPU: 1 UID: 0 PID: 7725 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  598.761716][ T7725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  598.761728][ T7725] Call Trace:
[  598.761737][ T7725]  <TASK>
[  598.761746][ T7725]  dump_stack_lvl+0x189/0x250
[  598.761780][ T7725]  ? __pfx____ratelimit+0x10/0x10
[  598.761812][ T7725]  ? __pfx_dump_stack_lvl+0x10/0x10
[  598.761841][ T7725]  ? __pfx__printk+0x10/0x10
[  598.761871][ T7725]  ? __pfx___might_resched+0x10/0x10
[  598.761907][ T7725]  should_fail_ex+0x414/0x560
[  598.761943][ T7725]  should_failslab+0xa8/0x100
[  598.761974][ T7725]  kmem_cache_alloc_noprof+0x88/0x700
[  598.762000][ T7725]  ? security_inode_alloc+0x39/0x330
[  598.762035][ T7725]  security_inode_alloc+0x39/0x330
[  598.762062][ T7725]  inode_init_always_gfp+0x9ed/0xdc0
[  598.762097][ T7725]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  598.762118][ T7725]  alloc_inode+0x82/0x1b0
[  598.762145][ T7725]  new_inode+0x22/0x170
[  598.762177][ T7725]  __debugfs_create_file+0xb8/0x400
[  598.762200][ T7725]  debugfs_create_file_unsafe+0x3a/0x50
[  598.762226][ T7725]  nbd_start_device+0x3b6/0xb10
[  598.762270][ T7725]  nbd_ioctl+0x56e/0xe10
[  598.762307][ T7725]  ? __pfx_nbd_ioctl+0x10/0x10
[  598.762350][ T7725]  ? __pfx_nbd_ioctl+0x10/0x10
[  598.762381][ T7725]  blkdev_ioctl+0x60e/0x710
[  598.762412][ T7725]  ? __pfx_blkdev_ioctl+0x10/0x10
[  598.762444][ T7725]  ? __fget_files+0x3a0/0x420
[  598.762471][ T7725]  ? __fget_files+0x2a/0x420
[  598.762502][ T7725]  ? bpf_lsm_file_ioctl+0x9/0x20
[  598.762530][ T7725]  ? __pfx_blkdev_ioctl+0x10/0x10
[  598.762554][ T7725]  __se_sys_ioctl+0xfc/0x170
[  598.762580][ T7725]  do_syscall_64+0xfa/0xfa0
[  598.762601][ T7725]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  598.762621][ T7725]  ? clear_bhb_loop+0x60/0xb0
[  598.762646][ T7725]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  598.762666][ T7725] RIP: 0033:0x7f1191ab5569
[  598.762684][ T7725] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  598.762701][ T7725] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  598.762724][ T7725] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  598.762740][ T7725] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  598.762753][ T7725] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  598.762767][ T7725] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  598.762779][ T7725] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  598.762815][ T7725]  </TASK>
[  599.020843][ T7725] debugfs: out of free dentries, can not create file 'timeout'
[  599.062490][ T7725] block nbd0: shutting down sockets
[  599.163509][ T7728] FAULT_INJECTION: forcing a failure.
[  599.163509][ T7728] name failslab, interval 1, probability 0, space 0, times 0
[  599.176516][ T7728] CPU: 0 UID: 0 PID: 7728 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  599.176547][ T7728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  599.176560][ T7728] Call Trace:
[  599.176570][ T7728]  <TASK>
[  599.176580][ T7728]  dump_stack_lvl+0x189/0x250
[  599.176613][ T7728]  ? __pfx____ratelimit+0x10/0x10
[  599.176633][ T7728]  ? __pfx_dump_stack_lvl+0x10/0x10
[  599.176651][ T7728]  ? __pfx__printk+0x10/0x10
[  599.176672][ T7728]  ? __pfx___might_resched+0x10/0x10
[  599.176688][ T7728]  ? fs_reclaim_acquire+0x7d/0x100
[  599.176707][ T7728]  should_fail_ex+0x414/0x560
[  599.176727][ T7728]  should_failslab+0xa8/0x100
[  599.176744][ T7728]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  599.176760][ T7728]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  599.176776][ T7728]  sbitmap_queue_init_node+0x1dc/0x4d0
[  599.176791][ T7728]  blk_mq_init_tags+0x15c/0x2d0
[  599.176812][ T7728]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  599.176836][ T7728]  blk_mq_alloc_sched_tags+0x141/0x370
[  599.176856][ T7728]  blk_mq_alloc_sched_res+0x92/0x360
[  599.176873][ T7728]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  599.176890][ T7728]  ? _raw_spin_unlock+0x28/0x50
[  599.176906][ T7728]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  599.176924][ T7728]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  599.176944][ T7728]  ? nbd_start_device+0x174/0xb10
[  599.176965][ T7728]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  599.176979][ T7728]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  599.177000][ T7728]  ? nbd_ioctl+0x131/0xe10
[  599.177019][ T7728]  ? __pfx___mutex_lock+0x10/0x10
[  599.177035][ T7728]  nbd_start_device+0x17f/0xb10
[  599.177060][ T7728]  nbd_ioctl+0x56e/0xe10
[  599.177080][ T7728]  ? __pfx_nbd_ioctl+0x10/0x10
[  599.177105][ T7728]  ? __pfx_nbd_ioctl+0x10/0x10
[  599.177123][ T7728]  blkdev_ioctl+0x60e/0x710
[  599.177140][ T7728]  ? __pfx_blkdev_ioctl+0x10/0x10
[  599.177153][ T7728]  ? __fget_files+0x3a0/0x420
[  599.177170][ T7728]  ? __fget_files+0x2a/0x420
[  599.177189][ T7728]  ? bpf_lsm_file_ioctl+0x9/0x20
[  599.177206][ T7728]  ? __pfx_blkdev_ioctl+0x10/0x10
[  599.177220][ T7728]  __se_sys_ioctl+0xfc/0x170
[  599.177235][ T7728]  do_syscall_64+0xfa/0xfa0
[  599.177248][ T7728]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  599.177260][ T7728]  ? clear_bhb_loop+0x60/0xb0
[  599.177275][ T7728]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  599.177286][ T7728] RIP: 0033:0x7f1191ab5569
[  599.177299][ T7728] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  599.177310][ T7728] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  599.177325][ T7728] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  599.177335][ T7728] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  599.177342][ T7728] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  599.177351][ T7728] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  599.177358][ T7728] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  599.177378][ T7728]  </TASK>
[  599.601964][ T7728] block nbd0: shutting down sockets
[  599.693210][ T7730] FAULT_INJECTION: forcing a failure.
[  599.693210][ T7730] name failslab, interval 1, probability 0, space 0, times 0
[  599.706882][ T7730] CPU: 1 UID: 0 PID: 7730 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  599.706903][ T7730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  599.706911][ T7730] Call Trace:
[  599.706917][ T7730]  <TASK>
[  599.706923][ T7730]  dump_stack_lvl+0x189/0x250
[  599.706946][ T7730]  ? __pfx____ratelimit+0x10/0x10
[  599.706965][ T7730]  ? __pfx_dump_stack_lvl+0x10/0x10
[  599.706984][ T7730]  ? __pfx__printk+0x10/0x10
[  599.707001][ T7730]  ? __pfx___might_resched+0x10/0x10
[  599.707018][ T7730]  ? fs_reclaim_acquire+0x7d/0x100
[  599.707036][ T7730]  should_fail_ex+0x414/0x560
[  599.707056][ T7730]  should_failslab+0xa8/0x100
[  599.707075][ T7730]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  599.707090][ T7730]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  599.707106][ T7730]  sbitmap_queue_init_node+0x1dc/0x4d0
[  599.707121][ T7730]  blk_mq_init_tags+0x15c/0x2d0
[  599.707142][ T7730]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  599.707167][ T7730]  blk_mq_alloc_sched_tags+0x141/0x370
[  599.707186][ T7730]  blk_mq_alloc_sched_res+0x92/0x360
[  599.707204][ T7730]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  599.707221][ T7730]  ? _raw_spin_unlock+0x28/0x50
[  599.707237][ T7730]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  599.707265][ T7730]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  599.707301][ T7730]  ? nbd_start_device+0x174/0xb10
[  599.707344][ T7730]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  599.707363][ T7730]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  599.707383][ T7730]  ? nbd_ioctl+0x131/0xe10
[  599.707403][ T7730]  ? __pfx___mutex_lock+0x10/0x10
[  599.707426][ T7730]  nbd_start_device+0x17f/0xb10
[  599.707450][ T7730]  nbd_ioctl+0x56e/0xe10
[  599.707471][ T7730]  ? __pfx_nbd_ioctl+0x10/0x10
[  599.707496][ T7730]  ? __pfx_nbd_ioctl+0x10/0x10
[  599.707514][ T7730]  blkdev_ioctl+0x60e/0x710
[  599.707530][ T7730]  ? __pfx_blkdev_ioctl+0x10/0x10
[  599.707544][ T7730]  ? __fget_files+0x3a0/0x420
[  599.707560][ T7730]  ? __fget_files+0x2a/0x420
[  599.707582][ T7730]  ? bpf_lsm_file_ioctl+0x9/0x20
[  599.707601][ T7730]  ? __pfx_blkdev_ioctl+0x10/0x10
[  599.707616][ T7730]  __se_sys_ioctl+0xfc/0x170
[  599.707632][ T7730]  do_syscall_64+0xfa/0xfa0
[  599.707645][ T7730]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  599.707659][ T7730]  ? clear_bhb_loop+0x60/0xb0
[  599.707674][ T7730]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  599.707686][ T7730] RIP: 0033:0x7f1191ab5569
[  599.707699][ T7730] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  599.707710][ T7730] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  599.707725][ T7730] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  599.707734][ T7730] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  599.707742][ T7730] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  599.707750][ T7730] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  599.707758][ T7730] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  599.707778][ T7730]  </TASK>
[  600.129906][ T7730] block nbd0: shutting down sockets
[  600.262704][ T7733] FAULT_INJECTION: forcing a failure.
[  600.262704][ T7733] name failslab, interval 1, probability 0, space 0, times 0
[  600.275447][ T7733] CPU: 0 UID: 0 PID: 7733 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  600.275476][ T7733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  600.275487][ T7733] Call Trace:
[  600.275496][ T7733]  <TASK>
[  600.275504][ T7733]  dump_stack_lvl+0x189/0x250
[  600.275527][ T7733]  ? __pfx____ratelimit+0x10/0x10
[  600.275546][ T7733]  ? __pfx_dump_stack_lvl+0x10/0x10
[  600.275564][ T7733]  ? __pfx__printk+0x10/0x10
[  600.275582][ T7733]  ? __pfx___might_resched+0x10/0x10
[  600.275599][ T7733]  ? fs_reclaim_acquire+0x7d/0x100
[  600.275617][ T7733]  should_fail_ex+0x414/0x560
[  600.275638][ T7733]  should_failslab+0xa8/0x100
[  600.275656][ T7733]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  600.275672][ T7733]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  600.275695][ T7733]  sbitmap_queue_init_node+0x1dc/0x4d0
[  600.275710][ T7733]  blk_mq_init_tags+0x15c/0x2d0
[  600.275732][ T7733]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  600.275756][ T7733]  blk_mq_alloc_sched_tags+0x141/0x370
[  600.275776][ T7733]  blk_mq_alloc_sched_res+0x92/0x360
[  600.275794][ T7733]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  600.275816][ T7733]  ? _raw_spin_unlock+0x28/0x50
[  600.275832][ T7733]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  600.275850][ T7733]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  600.275872][ T7733]  ? nbd_start_device+0x174/0xb10
[  600.275893][ T7733]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  600.275908][ T7733]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  600.275928][ T7733]  ? nbd_ioctl+0x131/0xe10
[  600.275948][ T7733]  ? __pfx___mutex_lock+0x10/0x10
[  600.275964][ T7733]  nbd_start_device+0x17f/0xb10
[  600.275988][ T7733]  nbd_ioctl+0x56e/0xe10
[  600.276010][ T7733]  ? __pfx_nbd_ioctl+0x10/0x10
[  600.276035][ T7733]  ? __pfx_nbd_ioctl+0x10/0x10
[  600.276054][ T7733]  blkdev_ioctl+0x60e/0x710
[  600.276071][ T7733]  ? __pfx_blkdev_ioctl+0x10/0x10
[  600.276084][ T7733]  ? __fget_files+0x3a0/0x420
[  600.276101][ T7733]  ? __fget_files+0x2a/0x420
[  600.276120][ T7733]  ? bpf_lsm_file_ioctl+0x9/0x20
[  600.276136][ T7733]  ? __pfx_blkdev_ioctl+0x10/0x10
[  600.276151][ T7733]  __se_sys_ioctl+0xfc/0x170
[  600.276167][ T7733]  do_syscall_64+0xfa/0xfa0
[  600.276180][ T7733]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  600.276192][ T7733]  ? clear_bhb_loop+0x60/0xb0
[  600.276206][ T7733]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  600.276218][ T7733] RIP: 0033:0x7f1191ab5569
[  600.276231][ T7733] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  600.276242][ T7733] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  600.276256][ T7733] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  600.276265][ T7733] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  600.276273][ T7733] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  600.276282][ T7733] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  600.276289][ T7733] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  600.276310][ T7733]  </TASK>
[  600.699998][ T7733] block nbd0: shutting down sockets
[  600.812262][ T7736] block nbd0: Device being setup by another task
[  600.819965][ T7735] FAULT_INJECTION: forcing a failure.
[  600.819965][ T7735] name failslab, interval 1, probability 0, space 0, times 0
[  600.832765][ T7735] CPU: 1 UID: 0 PID: 7735 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  600.832794][ T7735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  600.832808][ T7735] Call Trace:
[  600.832820][ T7735]  <TASK>
[  600.832827][ T7735]  dump_stack_lvl+0x189/0x250
[  600.832850][ T7735]  ? __pfx____ratelimit+0x10/0x10
[  600.832869][ T7735]  ? __pfx_dump_stack_lvl+0x10/0x10
[  600.832887][ T7735]  ? __pfx__printk+0x10/0x10
[  600.832905][ T7735]  ? __pfx___might_resched+0x10/0x10
[  600.832925][ T7735]  should_fail_ex+0x414/0x560
[  600.832947][ T7735]  should_failslab+0xa8/0x100
[  600.832965][ T7735]  kmem_cache_alloc_noprof+0x88/0x700
[  600.832980][ T7735]  ? security_inode_alloc+0x39/0x330
[  600.832996][ T7735]  security_inode_alloc+0x39/0x330
[  600.833011][ T7735]  inode_init_always_gfp+0x9ed/0xdc0
[  600.833032][ T7735]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  600.833045][ T7735]  alloc_inode+0x82/0x1b0
[  600.833062][ T7735]  new_inode+0x22/0x170
[  600.833082][ T7735]  __debugfs_create_file+0xb8/0x400
[  600.833096][ T7735]  debugfs_create_file_unsafe+0x3a/0x50
[  600.833111][ T7735]  nbd_start_device+0x3b6/0xb10
[  600.833137][ T7735]  nbd_ioctl+0x56e/0xe10
[  600.833158][ T7735]  ? __pfx_nbd_ioctl+0x10/0x10
[  600.833192][ T7735]  ? __pfx_nbd_ioctl+0x10/0x10
[  600.833211][ T7735]  blkdev_ioctl+0x60e/0x710
[  600.833229][ T7735]  ? __pfx_blkdev_ioctl+0x10/0x10
[  600.833242][ T7735]  ? __fget_files+0x3a0/0x420
[  600.833258][ T7735]  ? __fget_files+0x2a/0x420
[  600.833277][ T7735]  ? bpf_lsm_file_ioctl+0x9/0x20
[  600.833294][ T7735]  ? __pfx_blkdev_ioctl+0x10/0x10
[  600.833308][ T7735]  __se_sys_ioctl+0xfc/0x170
[  600.833324][ T7735]  do_syscall_64+0xfa/0xfa0
[  600.833337][ T7735]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  600.833349][ T7735]  ? clear_bhb_loop+0x60/0xb0
[  600.833365][ T7735]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  600.833377][ T7735] RIP: 0033:0x7f1191ab5569
[  600.833390][ T7735] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  600.833400][ T7735] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  600.833446][ T7735] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  600.833455][ T7735] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  600.833463][ T7735] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  600.833471][ T7735] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  600.833479][ T7735] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  600.833499][ T7735]  </TASK>
[  600.833521][ T7735] debugfs: out of free dentries, can not create file 'timeout'
[  601.142429][ T7735] block nbd0: shutting down sockets
[  601.272260][ T7739] block nbd0: Device being setup by another task
[  601.278998][ T7738] FAULT_INJECTION: forcing a failure.
[  601.278998][ T7738] name failslab, interval 1, probability 0, space 0, times 0
[  601.291708][ T7738] CPU: 1 UID: 0 PID: 7738 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  601.291736][ T7738] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  601.291744][ T7738] Call Trace:
[  601.291750][ T7738]  <TASK>
[  601.291756][ T7738]  dump_stack_lvl+0x189/0x250
[  601.291779][ T7738]  ? __pfx____ratelimit+0x10/0x10
[  601.291799][ T7738]  ? __pfx_dump_stack_lvl+0x10/0x10
[  601.291817][ T7738]  ? __pfx__printk+0x10/0x10
[  601.291835][ T7738]  ? __pfx___might_resched+0x10/0x10
[  601.291851][ T7738]  ? fs_reclaim_acquire+0x7d/0x100
[  601.291870][ T7738]  should_fail_ex+0x414/0x560
[  601.291890][ T7738]  should_failslab+0xa8/0x100
[  601.291908][ T7738]  kmem_cache_alloc_lru_noprof+0x8d/0x6e0
[  601.291923][ T7738]  ? alloc_inode+0x6a/0x1b0
[  601.291938][ T7738]  ? __pfx_simple_start_creating+0x10/0x10
[  601.291958][ T7738]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  601.291971][ T7738]  alloc_inode+0x6a/0x1b0
[  601.291988][ T7738]  new_inode+0x22/0x170
[  601.292008][ T7738]  __debugfs_create_file+0xb8/0x400
[  601.292030][ T7738]  debugfs_create_file_unsafe+0x3a/0x50
[  601.292053][ T7738]  nbd_start_device+0x3b6/0xb10
[  601.292095][ T7738]  nbd_ioctl+0x56e/0xe10
[  601.292130][ T7738]  ? __pfx_nbd_ioctl+0x10/0x10
[  601.292157][ T7738]  ? __pfx_nbd_ioctl+0x10/0x10
[  601.292175][ T7738]  blkdev_ioctl+0x60e/0x710
[  601.292193][ T7738]  ? __pfx_blkdev_ioctl+0x10/0x10
[  601.292206][ T7738]  ? __fget_files+0x3a0/0x420
[  601.292223][ T7738]  ? __fget_files+0x2a/0x420
[  601.292242][ T7738]  ? bpf_lsm_file_ioctl+0x9/0x20
[  601.292258][ T7738]  ? __pfx_blkdev_ioctl+0x10/0x10
[  601.292272][ T7738]  __se_sys_ioctl+0xfc/0x170
[  601.292288][ T7738]  do_syscall_64+0xfa/0xfa0
[  601.292301][ T7738]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  601.292313][ T7738]  ? clear_bhb_loop+0x60/0xb0
[  601.292329][ T7738]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  601.292340][ T7738] RIP: 0033:0x7f1191ab5569
[  601.292353][ T7738] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  601.292365][ T7738] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  601.292380][ T7738] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  601.292389][ T7738] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  601.292397][ T7738] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  601.292405][ T7738] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  601.292413][ T7738] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  601.292434][ T7738]  </TASK>
[  601.549419][ T7738] debugfs: out of free dentries, can not create file 'timeout'
[  601.592700][ T7738] block nbd0: shutting down sockets
[  601.633416][ T7741] block nbd0: Device being setup by another task
[  601.672121][ T7741] block nbd0: Device being setup by another task
[  601.812269][ T7744] block nbd0: Device being setup by another task
[  601.819144][ T7743] FAULT_INJECTION: forcing a failure.
[  601.819144][ T7743] name failslab, interval 1, probability 0, space 0, times 0
[  601.832228][ T7743] CPU: 0 UID: 0 PID: 7743 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  601.832258][ T7743] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  601.832269][ T7743] Call Trace:
[  601.832277][ T7743]  <TASK>
[  601.832283][ T7743]  dump_stack_lvl+0x189/0x250
[  601.832305][ T7743]  ? __pfx____ratelimit+0x10/0x10
[  601.832325][ T7743]  ? __pfx_dump_stack_lvl+0x10/0x10
[  601.832343][ T7743]  ? __pfx__printk+0x10/0x10
[  601.832361][ T7743]  ? __pfx___might_resched+0x10/0x10
[  601.832381][ T7743]  should_fail_ex+0x414/0x560
[  601.832401][ T7743]  should_failslab+0xa8/0x100
[  601.832419][ T7743]  kmem_cache_alloc_noprof+0x88/0x700
[  601.832434][ T7743]  ? security_inode_alloc+0x39/0x330
[  601.832460][ T7743]  security_inode_alloc+0x39/0x330
[  601.832475][ T7743]  inode_init_always_gfp+0x9ed/0xdc0
[  601.832496][ T7743]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  601.832509][ T7743]  alloc_inode+0x82/0x1b0
[  601.832526][ T7743]  new_inode+0x22/0x170
[  601.832546][ T7743]  __debugfs_create_file+0xb8/0x400
[  601.832560][ T7743]  debugfs_create_file_unsafe+0x3a/0x50
[  601.832575][ T7743]  nbd_start_device+0x3b6/0xb10
[  601.832600][ T7743]  nbd_ioctl+0x56e/0xe10
[  601.832622][ T7743]  ? __pfx_nbd_ioctl+0x10/0x10
[  601.832652][ T7743]  ? __pfx_nbd_ioctl+0x10/0x10
[  601.832670][ T7743]  blkdev_ioctl+0x60e/0x710
[  601.832687][ T7743]  ? __pfx_blkdev_ioctl+0x10/0x10
[  601.832704][ T7743]  ? __fget_files+0x3a0/0x420
[  601.832720][ T7743]  ? __fget_files+0x2a/0x420
[  601.832739][ T7743]  ? bpf_lsm_file_ioctl+0x9/0x20
[  601.832756][ T7743]  ? __pfx_blkdev_ioctl+0x10/0x10
[  601.832771][ T7743]  __se_sys_ioctl+0xfc/0x170
[  601.832786][ T7743]  do_syscall_64+0xfa/0xfa0
[  601.832799][ T7743]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  601.832811][ T7743]  ? clear_bhb_loop+0x60/0xb0
[  601.832826][ T7743]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  601.832838][ T7743] RIP: 0033:0x7f1191ab5569
[  601.832851][ T7743] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  601.832862][ T7743] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  601.832878][ T7743] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  601.832887][ T7743] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  601.832895][ T7743] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  601.832904][ T7743] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  601.832912][ T7743] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  601.832932][ T7743]  </TASK>
[  601.832953][ T7743] debugfs: out of free dentries, can not create file 'timeout'
[  602.132644][ T7743] block nbd0: shutting down sockets
[  602.252582][ T7747] FAULT_INJECTION: forcing a failure.
[  602.252582][ T7747] name failslab, interval 1, probability 0, space 0, times 0
[  602.265451][ T7747] CPU: 1 UID: 0 PID: 7747 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  602.265470][ T7747] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  602.265478][ T7747] Call Trace:
[  602.265485][ T7747]  <TASK>
[  602.265492][ T7747]  dump_stack_lvl+0x189/0x250
[  602.265515][ T7747]  ? __pfx____ratelimit+0x10/0x10
[  602.265534][ T7747]  ? __pfx_dump_stack_lvl+0x10/0x10
[  602.265552][ T7747]  ? __pfx__printk+0x10/0x10
[  602.265571][ T7747]  ? __pfx___might_resched+0x10/0x10
[  602.265587][ T7747]  ? fs_reclaim_acquire+0x7d/0x100
[  602.265605][ T7747]  should_fail_ex+0x414/0x560
[  602.265626][ T7747]  should_failslab+0xa8/0x100
[  602.265644][ T7747]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  602.265659][ T7747]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  602.265676][ T7747]  sbitmap_queue_init_node+0x1dc/0x4d0
[  602.265693][ T7747]  blk_mq_init_tags+0x15c/0x2d0
[  602.265715][ T7747]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  602.265740][ T7747]  blk_mq_alloc_sched_tags+0x141/0x370
[  602.265760][ T7747]  blk_mq_alloc_sched_res+0x92/0x360
[  602.265777][ T7747]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  602.265794][ T7747]  ? _raw_spin_unlock+0x28/0x50
[  602.265810][ T7747]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  602.265828][ T7747]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  602.265848][ T7747]  ? nbd_start_device+0x174/0xb10
[  602.265869][ T7747]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  602.265884][ T7747]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  602.265904][ T7747]  ? nbd_ioctl+0x131/0xe10
[  602.265924][ T7747]  ? __pfx___mutex_lock+0x10/0x10
[  602.265940][ T7747]  nbd_start_device+0x17f/0xb10
[  602.265964][ T7747]  nbd_ioctl+0x56e/0xe10
[  602.265985][ T7747]  ? __pfx_nbd_ioctl+0x10/0x10
[  602.266010][ T7747]  ? __pfx_nbd_ioctl+0x10/0x10
[  602.266028][ T7747]  blkdev_ioctl+0x60e/0x710
[  602.266045][ T7747]  ? __pfx_blkdev_ioctl+0x10/0x10
[  602.266059][ T7747]  ? __fget_files+0x3a0/0x420
[  602.266075][ T7747]  ? __fget_files+0x2a/0x420
[  602.266093][ T7747]  ? bpf_lsm_file_ioctl+0x9/0x20
[  602.266110][ T7747]  ? __pfx_blkdev_ioctl+0x10/0x10
[  602.266125][ T7747]  __se_sys_ioctl+0xfc/0x170
[  602.266141][ T7747]  do_syscall_64+0xfa/0xfa0
[  602.266154][ T7747]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  602.266166][ T7747]  ? clear_bhb_loop+0x60/0xb0
[  602.266181][ T7747]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  602.266193][ T7747] RIP: 0033:0x7f1191ab5569
[  602.266206][ T7747] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  602.266217][ T7747] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  602.266232][ T7747] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  602.266245][ T7747] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  602.266257][ T7747] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  602.266271][ T7747] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  602.266284][ T7747] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  602.266319][ T7747]  </TASK>
[  602.689523][ T7747] block nbd0: shutting down sockets
[  602.822640][ T7750] FAULT_INJECTION: forcing a failure.
[  602.822640][ T7750] name failslab, interval 1, probability 0, space 0, times 0
[  602.836175][ T7750] CPU: 0 UID: 0 PID: 7750 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  602.836206][ T7750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  602.836214][ T7750] Call Trace:
[  602.836223][ T7750]  <TASK>
[  602.836230][ T7750]  dump_stack_lvl+0x189/0x250
[  602.836253][ T7750]  ? __pfx____ratelimit+0x10/0x10
[  602.836272][ T7750]  ? __pfx_dump_stack_lvl+0x10/0x10
[  602.836290][ T7750]  ? __pfx__printk+0x10/0x10
[  602.836308][ T7750]  ? __pfx___might_resched+0x10/0x10
[  602.836324][ T7750]  ? fs_reclaim_acquire+0x7d/0x100
[  602.836343][ T7750]  should_fail_ex+0x414/0x560
[  602.836363][ T7750]  should_failslab+0xa8/0x100
[  602.836382][ T7750]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  602.836397][ T7750]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  602.836414][ T7750]  sbitmap_queue_init_node+0x1dc/0x4d0
[  602.836428][ T7750]  blk_mq_init_tags+0x15c/0x2d0
[  602.836449][ T7750]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  602.836494][ T7750]  blk_mq_alloc_sched_tags+0x141/0x370
[  602.836514][ T7750]  blk_mq_alloc_sched_res+0x92/0x360
[  602.836532][ T7750]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  602.836549][ T7750]  ? _raw_spin_unlock+0x28/0x50
[  602.836565][ T7750]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  602.836583][ T7750]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  602.836604][ T7750]  ? nbd_start_device+0x174/0xb10
[  602.836625][ T7750]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  602.836646][ T7750]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  602.836667][ T7750]  ? nbd_ioctl+0x131/0xe10
[  602.836686][ T7750]  ? __pfx___mutex_lock+0x10/0x10
[  602.836702][ T7750]  nbd_start_device+0x17f/0xb10
[  602.836729][ T7750]  nbd_ioctl+0x56e/0xe10
[  602.836750][ T7750]  ? __pfx_nbd_ioctl+0x10/0x10
[  602.836775][ T7750]  ? __pfx_nbd_ioctl+0x10/0x10
[  602.836793][ T7750]  blkdev_ioctl+0x60e/0x710
[  602.836810][ T7750]  ? __pfx_blkdev_ioctl+0x10/0x10
[  602.836823][ T7750]  ? __fget_files+0x3a0/0x420
[  602.836840][ T7750]  ? __fget_files+0x2a/0x420
[  602.836859][ T7750]  ? bpf_lsm_file_ioctl+0x9/0x20
[  602.836875][ T7750]  ? __pfx_blkdev_ioctl+0x10/0x10
[  602.836890][ T7750]  __se_sys_ioctl+0xfc/0x170
[  602.836905][ T7750]  do_syscall_64+0xfa/0xfa0
[  602.836919][ T7750]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  602.836931][ T7750]  ? clear_bhb_loop+0x60/0xb0
[  602.836946][ T7750]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  602.836958][ T7750] RIP: 0033:0x7f1191ab5569
[  602.836971][ T7750] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  602.836983][ T7750] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  602.836998][ T7750] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  602.837007][ T7750] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  602.837015][ T7750] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  602.837024][ T7750] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  602.837032][ T7750] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  602.837052][ T7750]  </TASK>
[  603.258935][ T7750] block nbd0: shutting down sockets
[  603.364195][ T7752] FAULT_INJECTION: forcing a failure.
[  603.364195][ T7752] name failslab, interval 1, probability 0, space 0, times 0
[  603.377028][ T7752] CPU: 1 UID: 0 PID: 7752 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  603.377049][ T7752] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  603.377057][ T7752] Call Trace:
[  603.377066][ T7752]  <TASK>
[  603.377072][ T7752]  dump_stack_lvl+0x189/0x250
[  603.377095][ T7752]  ? __pfx____ratelimit+0x10/0x10
[  603.377114][ T7752]  ? __pfx_dump_stack_lvl+0x10/0x10
[  603.377132][ T7752]  ? __pfx__printk+0x10/0x10
[  603.377148][ T7752]  ? __pfx___might_resched+0x10/0x10
[  603.377165][ T7752]  ? fs_reclaim_acquire+0x7d/0x100
[  603.377185][ T7752]  should_fail_ex+0x414/0x560
[  603.377205][ T7752]  should_failslab+0xa8/0x100
[  603.377223][ T7752]  __kvmalloc_node_noprof+0x175/0x910
[  603.377240][ T7752]  ? sbitmap_init_node+0x2cd/0x640
[  603.377255][ T7752]  sbitmap_init_node+0x2cd/0x640
[  603.377273][ T7752]  sbitmap_queue_init_node+0x3e/0x4d0
[  603.377288][ T7752]  blk_mq_init_tags+0x15c/0x2d0
[  603.377309][ T7752]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  603.377334][ T7752]  blk_mq_alloc_sched_tags+0x141/0x370
[  603.377354][ T7752]  blk_mq_alloc_sched_res+0x92/0x360
[  603.377372][ T7752]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  603.377388][ T7752]  ? _raw_spin_unlock+0x28/0x50
[  603.377405][ T7752]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  603.377422][ T7752]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  603.377444][ T7752]  ? nbd_start_device+0x174/0xb10
[  603.377465][ T7752]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  603.377480][ T7752]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  603.377500][ T7752]  ? nbd_ioctl+0x131/0xe10
[  603.377519][ T7752]  ? __pfx___mutex_lock+0x10/0x10
[  603.377535][ T7752]  nbd_start_device+0x17f/0xb10
[  603.377559][ T7752]  nbd_ioctl+0x56e/0xe10
[  603.377580][ T7752]  ? __pfx_nbd_ioctl+0x10/0x10
[  603.377605][ T7752]  ? __pfx_nbd_ioctl+0x10/0x10
[  603.377622][ T7752]  blkdev_ioctl+0x60e/0x710
[  603.377639][ T7752]  ? __pfx_blkdev_ioctl+0x10/0x10
[  603.377653][ T7752]  ? __fget_files+0x3a0/0x420
[  603.377669][ T7752]  ? __fget_files+0x2a/0x420
[  603.377696][ T7752]  ? bpf_lsm_file_ioctl+0x9/0x20
[  603.377712][ T7752]  ? __pfx_blkdev_ioctl+0x10/0x10
[  603.377727][ T7752]  __se_sys_ioctl+0xfc/0x170
[  603.377743][ T7752]  do_syscall_64+0xfa/0xfa0
[  603.377756][ T7752]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  603.377768][ T7752]  ? clear_bhb_loop+0x60/0xb0
[  603.377783][ T7752]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  603.377796][ T7752] RIP: 0033:0x7f1191ab5569
[  603.377809][ T7752] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  603.377820][ T7752] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  603.377835][ T7752] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  603.377845][ T7752] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  603.377853][ T7752] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  603.377862][ T7752] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  603.377870][ T7752] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  603.377890][ T7752]  </TASK>
[  603.804496][ T7752] block nbd0: shutting down sockets
[  603.914103][ T7754] FAULT_INJECTION: forcing a failure.
[  603.914103][ T7754] name failslab, interval 1, probability 0, space 0, times 0
[  603.926876][ T7754] CPU: 0 UID: 0 PID: 7754 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  603.926903][ T7754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  603.926916][ T7754] Call Trace:
[  603.926926][ T7754]  <TASK>
[  603.926932][ T7754]  dump_stack_lvl+0x189/0x250
[  603.926955][ T7754]  ? __pfx____ratelimit+0x10/0x10
[  603.926975][ T7754]  ? __pfx_dump_stack_lvl+0x10/0x10
[  603.926993][ T7754]  ? __pfx__printk+0x10/0x10
[  603.927011][ T7754]  ? __pfx___might_resched+0x10/0x10
[  603.927027][ T7754]  ? fs_reclaim_acquire+0x7d/0x100
[  603.927045][ T7754]  should_fail_ex+0x414/0x560
[  603.927065][ T7754]  should_failslab+0xa8/0x100
[  603.927083][ T7754]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  603.927098][ T7754]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  603.927114][ T7754]  sbitmap_queue_init_node+0x1dc/0x4d0
[  603.927128][ T7754]  blk_mq_init_tags+0x15c/0x2d0
[  603.927149][ T7754]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  603.927173][ T7754]  blk_mq_alloc_sched_tags+0x141/0x370
[  603.927194][ T7754]  blk_mq_alloc_sched_res+0x92/0x360
[  603.927212][ T7754]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  603.927228][ T7754]  ? _raw_spin_unlock+0x28/0x50
[  603.927245][ T7754]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  603.927262][ T7754]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  603.927283][ T7754]  ? nbd_start_device+0x174/0xb10
[  603.927304][ T7754]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  603.927319][ T7754]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  603.927339][ T7754]  ? nbd_ioctl+0x131/0xe10
[  603.927358][ T7754]  ? __pfx___mutex_lock+0x10/0x10
[  603.927374][ T7754]  nbd_start_device+0x17f/0xb10
[  603.927398][ T7754]  nbd_ioctl+0x56e/0xe10
[  603.927427][ T7754]  ? __pfx_nbd_ioctl+0x10/0x10
[  603.927452][ T7754]  ? __pfx_nbd_ioctl+0x10/0x10
[  603.927470][ T7754]  blkdev_ioctl+0x60e/0x710
[  603.927487][ T7754]  ? __pfx_blkdev_ioctl+0x10/0x10
[  603.927500][ T7754]  ? __fget_files+0x3a0/0x420
[  603.927517][ T7754]  ? __fget_files+0x2a/0x420
[  603.927535][ T7754]  ? bpf_lsm_file_ioctl+0x9/0x20
[  603.927552][ T7754]  ? __pfx_blkdev_ioctl+0x10/0x10
[  603.927566][ T7754]  __se_sys_ioctl+0xfc/0x170
[  603.927582][ T7754]  do_syscall_64+0xfa/0xfa0
[  603.927595][ T7754]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  603.927607][ T7754]  ? clear_bhb_loop+0x60/0xb0
[  603.927622][ T7754]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  603.927633][ T7754] RIP: 0033:0x7f1191ab5569
[  603.927647][ T7754] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  603.927661][ T7754] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  603.927676][ T7754] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  603.927686][ T7754] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  603.927694][ T7754] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  603.927703][ T7754] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  603.927711][ T7754] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  603.927731][ T7754]  </TASK>
[  604.352652][ T7754] block nbd0: shutting down sockets
[  604.443186][ T7756] FAULT_INJECTION: forcing a failure.
[  604.443186][ T7756] name failslab, interval 1, probability 0, space 0, times 0
[  604.457091][ T7756] CPU: 1 UID: 0 PID: 7756 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  604.457112][ T7756] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  604.457120][ T7756] Call Trace:
[  604.457126][ T7756]  <TASK>
[  604.457131][ T7756]  dump_stack_lvl+0x189/0x250
[  604.457155][ T7756]  ? __pfx____ratelimit+0x10/0x10
[  604.457174][ T7756]  ? __pfx_dump_stack_lvl+0x10/0x10
[  604.457192][ T7756]  ? __pfx__printk+0x10/0x10
[  604.457210][ T7756]  ? __pfx___might_resched+0x10/0x10
[  604.457227][ T7756]  ? fs_reclaim_acquire+0x7d/0x100
[  604.457246][ T7756]  should_fail_ex+0x414/0x560
[  604.457267][ T7756]  should_failslab+0xa8/0x100
[  604.457284][ T7756]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  604.457300][ T7756]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  604.457316][ T7756]  sbitmap_queue_init_node+0x1dc/0x4d0
[  604.457330][ T7756]  blk_mq_init_tags+0x15c/0x2d0
[  604.457351][ T7756]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  604.457383][ T7756]  blk_mq_alloc_sched_tags+0x141/0x370
[  604.457403][ T7756]  blk_mq_alloc_sched_res+0x92/0x360
[  604.457421][ T7756]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  604.457437][ T7756]  ? _raw_spin_unlock+0x28/0x50
[  604.457454][ T7756]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  604.457472][ T7756]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  604.457492][ T7756]  ? nbd_start_device+0x174/0xb10
[  604.457513][ T7756]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  604.457528][ T7756]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  604.457548][ T7756]  ? nbd_ioctl+0x131/0xe10
[  604.457568][ T7756]  ? __pfx___mutex_lock+0x10/0x10
[  604.457584][ T7756]  nbd_start_device+0x17f/0xb10
[  604.457607][ T7756]  nbd_ioctl+0x56e/0xe10
[  604.457631][ T7756]  ? __pfx_nbd_ioctl+0x10/0x10
[  604.457656][ T7756]  ? __pfx_nbd_ioctl+0x10/0x10
[  604.457674][ T7756]  blkdev_ioctl+0x60e/0x710
[  604.457691][ T7756]  ? __pfx_blkdev_ioctl+0x10/0x10
[  604.457705][ T7756]  ? __fget_files+0x3a0/0x420
[  604.457722][ T7756]  ? __fget_files+0x2a/0x420
[  604.457741][ T7756]  ? bpf_lsm_file_ioctl+0x9/0x20
[  604.457757][ T7756]  ? __pfx_blkdev_ioctl+0x10/0x10
[  604.457771][ T7756]  __se_sys_ioctl+0xfc/0x170
[  604.457787][ T7756]  do_syscall_64+0xfa/0xfa0
[  604.457800][ T7756]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  604.457812][ T7756]  ? clear_bhb_loop+0x60/0xb0
[  604.457827][ T7756]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  604.457839][ T7756] RIP: 0033:0x7f1191ab5569
[  604.457852][ T7756] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  604.457863][ T7756] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  604.457878][ T7756] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  604.457888][ T7756] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  604.457896][ T7756] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  604.457904][ T7756] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  604.457912][ T7756] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  604.457932][ T7756]  </TASK>
[  604.883205][ T7756] block nbd0: shutting down sockets
[  605.012350][ T7759] block nbd0: Device being setup by another task
[  605.019299][ T7758] FAULT_INJECTION: forcing a failure.
[  605.019299][ T7758] name failslab, interval 1, probability 0, space 0, times 0
[  605.032029][ T7758] CPU: 0 UID: 0 PID: 7758 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  605.032058][ T7758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  605.032072][ T7758] Call Trace:
[  605.032084][ T7758]  <TASK>
[  605.032092][ T7758]  dump_stack_lvl+0x189/0x250
[  605.032115][ T7758]  ? __pfx____ratelimit+0x10/0x10
[  605.032135][ T7758]  ? __pfx_dump_stack_lvl+0x10/0x10
[  605.032153][ T7758]  ? __pfx__printk+0x10/0x10
[  605.032171][ T7758]  ? __pfx___might_resched+0x10/0x10
[  605.032193][ T7758]  should_fail_ex+0x414/0x560
[  605.032213][ T7758]  should_failslab+0xa8/0x100
[  605.032232][ T7758]  kmem_cache_alloc_noprof+0x88/0x700
[  605.032246][ T7758]  ? security_inode_alloc+0x39/0x330
[  605.032263][ T7758]  security_inode_alloc+0x39/0x330
[  605.032277][ T7758]  inode_init_always_gfp+0x9ed/0xdc0
[  605.032299][ T7758]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  605.032311][ T7758]  alloc_inode+0x82/0x1b0
[  605.032328][ T7758]  new_inode+0x22/0x170
[  605.032349][ T7758]  __debugfs_create_file+0xb8/0x400
[  605.032364][ T7758]  debugfs_create_file_unsafe+0x3a/0x50
[  605.032379][ T7758]  nbd_start_device+0x3b6/0xb10
[  605.032405][ T7758]  nbd_ioctl+0x56e/0xe10
[  605.032429][ T7758]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.032454][ T7758]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.032473][ T7758]  blkdev_ioctl+0x60e/0x710
[  605.032491][ T7758]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.032504][ T7758]  ? __fget_files+0x3a0/0x420
[  605.032521][ T7758]  ? __fget_files+0x2a/0x420
[  605.032541][ T7758]  ? bpf_lsm_file_ioctl+0x9/0x20
[  605.032558][ T7758]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.032573][ T7758]  __se_sys_ioctl+0xfc/0x170
[  605.032588][ T7758]  do_syscall_64+0xfa/0xfa0
[  605.032601][ T7758]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.032614][ T7758]  ? clear_bhb_loop+0x60/0xb0
[  605.032631][ T7758]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.032644][ T7758] RIP: 0033:0x7f1191ab5569
[  605.032657][ T7758] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  605.032682][ T7758] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  605.032697][ T7758] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  605.032707][ T7758] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  605.032715][ T7758] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  605.032723][ T7758] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  605.032731][ T7758] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  605.032752][ T7758]  </TASK>
[  605.290912][ T7758] debugfs: out of free dentries, can not create file 'timeout'
[  605.342583][ T7758] block nbd0: shutting down sockets
[  605.462272][ T7762] block nbd0: Device being setup by another task
[  605.469024][ T7761] FAULT_INJECTION: forcing a failure.
[  605.469024][ T7761] name failslab, interval 1, probability 0, space 0, times 0
[  605.481716][ T7761] CPU: 1 UID: 0 PID: 7761 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  605.481736][ T7761] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  605.481744][ T7761] Call Trace:
[  605.481749][ T7761]  <TASK>
[  605.481755][ T7761]  dump_stack_lvl+0x189/0x250
[  605.481778][ T7761]  ? __pfx____ratelimit+0x10/0x10
[  605.481798][ T7761]  ? __pfx_dump_stack_lvl+0x10/0x10
[  605.481816][ T7761]  ? __pfx__printk+0x10/0x10
[  605.481834][ T7761]  ? __pfx___might_resched+0x10/0x10
[  605.481854][ T7761]  should_fail_ex+0x414/0x560
[  605.481874][ T7761]  should_failslab+0xa8/0x100
[  605.481893][ T7761]  kmem_cache_alloc_noprof+0x88/0x700
[  605.481908][ T7761]  ? security_inode_alloc+0x39/0x330
[  605.481925][ T7761]  security_inode_alloc+0x39/0x330
[  605.481939][ T7761]  inode_init_always_gfp+0x9ed/0xdc0
[  605.481960][ T7761]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  605.481974][ T7761]  alloc_inode+0x82/0x1b0
[  605.481991][ T7761]  new_inode+0x22/0x170
[  605.482011][ T7761]  __debugfs_create_file+0xb8/0x400
[  605.482037][ T7761]  debugfs_create_file_unsafe+0x3a/0x50
[  605.482059][ T7761]  nbd_start_device+0x3b6/0xb10
[  605.482102][ T7761]  nbd_ioctl+0x56e/0xe10
[  605.482135][ T7761]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.482160][ T7761]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.482178][ T7761]  blkdev_ioctl+0x60e/0x710
[  605.482196][ T7761]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.482210][ T7761]  ? __fget_files+0x3a0/0x420
[  605.482226][ T7761]  ? __fget_files+0x2a/0x420
[  605.482245][ T7761]  ? bpf_lsm_file_ioctl+0x9/0x20
[  605.482262][ T7761]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.482277][ T7761]  __se_sys_ioctl+0xfc/0x170
[  605.482293][ T7761]  do_syscall_64+0xfa/0xfa0
[  605.482306][ T7761]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.482318][ T7761]  ? clear_bhb_loop+0x60/0xb0
[  605.482333][ T7761]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.482344][ T7761] RIP: 0033:0x7f1191ab5569
[  605.482359][ T7761] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  605.482370][ T7761] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  605.482387][ T7761] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  605.482397][ T7761] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  605.482405][ T7761] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  605.482414][ T7761] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  605.482422][ T7761] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  605.482443][ T7761]  </TASK>
[  605.740320][ T7761] debugfs: out of free dentries, can not create file 'timeout'
[  605.863834][ T7761] block nbd0: shutting down sockets
[  605.972252][ T7765] block nbd0: Device being setup by another task
[  605.979882][ T7764] FAULT_INJECTION: forcing a failure.
[  605.979882][ T7764] name failslab, interval 1, probability 0, space 0, times 0
[  605.992616][ T7764] CPU: 0 UID: 0 PID: 7764 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  605.992642][ T7764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  605.992651][ T7764] Call Trace:
[  605.992657][ T7764]  <TASK>
[  605.992662][ T7764]  dump_stack_lvl+0x189/0x250
[  605.992685][ T7764]  ? __pfx____ratelimit+0x10/0x10
[  605.992705][ T7764]  ? __pfx_dump_stack_lvl+0x10/0x10
[  605.992722][ T7764]  ? __pfx__printk+0x10/0x10
[  605.992740][ T7764]  ? __pfx___might_resched+0x10/0x10
[  605.992760][ T7764]  should_fail_ex+0x414/0x560
[  605.992781][ T7764]  should_failslab+0xa8/0x100
[  605.992799][ T7764]  kmem_cache_alloc_noprof+0x88/0x700
[  605.992813][ T7764]  ? security_inode_alloc+0x39/0x330
[  605.992829][ T7764]  security_inode_alloc+0x39/0x330
[  605.992844][ T7764]  inode_init_always_gfp+0x9ed/0xdc0
[  605.992865][ T7764]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  605.992878][ T7764]  alloc_inode+0x82/0x1b0
[  605.992895][ T7764]  new_inode+0x22/0x170
[  605.992915][ T7764]  __debugfs_create_file+0xb8/0x400
[  605.992930][ T7764]  debugfs_create_file_unsafe+0x3a/0x50
[  605.992943][ T7764]  nbd_start_device+0x3b6/0xb10
[  605.992969][ T7764]  nbd_ioctl+0x56e/0xe10
[  605.992990][ T7764]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.993014][ T7764]  ? __pfx_nbd_ioctl+0x10/0x10
[  605.993033][ T7764]  blkdev_ioctl+0x60e/0x710
[  605.993050][ T7764]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.993064][ T7764]  ? __fget_files+0x3a0/0x420
[  605.993080][ T7764]  ? __fget_files+0x2a/0x420
[  605.993099][ T7764]  ? bpf_lsm_file_ioctl+0x9/0x20
[  605.993115][ T7764]  ? __pfx_blkdev_ioctl+0x10/0x10
[  605.993130][ T7764]  __se_sys_ioctl+0xfc/0x170
[  605.993145][ T7764]  do_syscall_64+0xfa/0xfa0
[  605.993165][ T7764]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.993186][ T7764]  ? clear_bhb_loop+0x60/0xb0
[  605.993212][ T7764]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  605.993232][ T7764] RIP: 0033:0x7f1191ab5569
[  605.993248][ T7764] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  605.993260][ T7764] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  605.993275][ T7764] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  605.993284][ T7764] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  605.993292][ T7764] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  605.993300][ T7764] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  605.993308][ T7764] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  605.993328][ T7764]  </TASK>
[  605.993347][ T7764] debugfs: out of free dentries, can not create file 'timeout'
[  606.322406][ T7764] block nbd0: shutting down sockets
[  606.382933][ T7767] block nbd0: Device being setup by another task
[  606.432164][ T7767] block nbd0: Device being setup by another task
[  606.533252][ T7769] FAULT_INJECTION: forcing a failure.
[  606.533252][ T7769] name failslab, interval 1, probability 0, space 0, times 0
[  606.546117][ T7769] CPU: 1 UID: 0 PID: 7769 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  606.546138][ T7769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  606.546147][ T7769] Call Trace:
[  606.546156][ T7769]  <TASK>
[  606.546162][ T7769]  dump_stack_lvl+0x189/0x250
[  606.546185][ T7769]  ? __pfx____ratelimit+0x10/0x10
[  606.546204][ T7769]  ? __pfx_dump_stack_lvl+0x10/0x10
[  606.546223][ T7769]  ? __pfx__printk+0x10/0x10
[  606.546241][ T7769]  ? __pfx___might_resched+0x10/0x10
[  606.546257][ T7769]  ? fs_reclaim_acquire+0x7d/0x100
[  606.546276][ T7769]  should_fail_ex+0x414/0x560
[  606.546296][ T7769]  should_failslab+0xa8/0x100
[  606.546314][ T7769]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  606.546330][ T7769]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  606.546347][ T7769]  sbitmap_queue_init_node+0x1dc/0x4d0
[  606.546361][ T7769]  blk_mq_init_tags+0x15c/0x2d0
[  606.546382][ T7769]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  606.546419][ T7769]  blk_mq_alloc_sched_tags+0x141/0x370
[  606.546460][ T7769]  blk_mq_alloc_sched_res+0x92/0x360
[  606.546490][ T7769]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  606.546513][ T7769]  ? _raw_spin_unlock+0x28/0x50
[  606.546529][ T7769]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  606.546548][ T7769]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  606.546568][ T7769]  ? nbd_start_device+0x174/0xb10
[  606.546588][ T7769]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  606.546603][ T7769]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  606.546623][ T7769]  ? nbd_ioctl+0x131/0xe10
[  606.546642][ T7769]  ? __pfx___mutex_lock+0x10/0x10
[  606.546658][ T7769]  nbd_start_device+0x17f/0xb10
[  606.546684][ T7769]  nbd_ioctl+0x56e/0xe10
[  606.546707][ T7769]  ? __pfx_nbd_ioctl+0x10/0x10
[  606.546732][ T7769]  ? __pfx_nbd_ioctl+0x10/0x10
[  606.546750][ T7769]  blkdev_ioctl+0x60e/0x710
[  606.546767][ T7769]  ? __pfx_blkdev_ioctl+0x10/0x10
[  606.546781][ T7769]  ? __fget_files+0x3a0/0x420
[  606.546798][ T7769]  ? __fget_files+0x2a/0x420
[  606.546817][ T7769]  ? bpf_lsm_file_ioctl+0x9/0x20
[  606.546833][ T7769]  ? __pfx_blkdev_ioctl+0x10/0x10
[  606.546848][ T7769]  __se_sys_ioctl+0xfc/0x170
[  606.546863][ T7769]  do_syscall_64+0xfa/0xfa0
[  606.546877][ T7769]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  606.546889][ T7769]  ? clear_bhb_loop+0x60/0xb0
[  606.546904][ T7769]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  606.546917][ T7769] RIP: 0033:0x7f1191ab5569
[  606.546929][ T7769] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  606.546941][ T7769] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  606.546956][ T7769] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  606.546965][ T7769] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  606.546973][ T7769] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  606.546982][ T7769] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  606.546990][ T7769] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  606.547010][ T7769]  </TASK>
[  606.941845][ T7769] block nbd0: shutting down sockets
[  607.062740][ T7772] FAULT_INJECTION: forcing a failure.
[  607.062740][ T7772] name failslab, interval 1, probability 0, space 0, times 0
[  607.075656][ T7772] CPU: 0 UID: 0 PID: 7772 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  607.075692][ T7772] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  607.075701][ T7772] Call Trace:
[  607.075707][ T7772]  <TASK>
[  607.075713][ T7772]  dump_stack_lvl+0x189/0x250
[  607.075735][ T7772]  ? __pfx____ratelimit+0x10/0x10
[  607.075755][ T7772]  ? __pfx_dump_stack_lvl+0x10/0x10
[  607.075773][ T7772]  ? __pfx__printk+0x10/0x10
[  607.075790][ T7772]  ? __pfx___might_resched+0x10/0x10
[  607.075807][ T7772]  ? fs_reclaim_acquire+0x7d/0x100
[  607.075825][ T7772]  should_fail_ex+0x414/0x560
[  607.075845][ T7772]  should_failslab+0xa8/0x100
[  607.075863][ T7772]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  607.075879][ T7772]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  607.075895][ T7772]  sbitmap_queue_init_node+0x1dc/0x4d0
[  607.075909][ T7772]  blk_mq_init_tags+0x15c/0x2d0
[  607.075939][ T7772]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  607.075966][ T7772]  blk_mq_alloc_sched_tags+0x141/0x370
[  607.075986][ T7772]  blk_mq_alloc_sched_res+0x92/0x360
[  607.076004][ T7772]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  607.076020][ T7772]  ? _raw_spin_unlock+0x28/0x50
[  607.076037][ T7772]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  607.076055][ T7772]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  607.076077][ T7772]  ? nbd_start_device+0x174/0xb10
[  607.076097][ T7772]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  607.076112][ T7772]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  607.076133][ T7772]  ? nbd_ioctl+0x131/0xe10
[  607.076152][ T7772]  ? __pfx___mutex_lock+0x10/0x10
[  607.076168][ T7772]  nbd_start_device+0x17f/0xb10
[  607.076193][ T7772]  nbd_ioctl+0x56e/0xe10
[  607.076214][ T7772]  ? __pfx_nbd_ioctl+0x10/0x10
[  607.076240][ T7772]  ? __pfx_nbd_ioctl+0x10/0x10
[  607.076258][ T7772]  blkdev_ioctl+0x60e/0x710
[  607.076275][ T7772]  ? __pfx_blkdev_ioctl+0x10/0x10
[  607.076288][ T7772]  ? __fget_files+0x3a0/0x420
[  607.076305][ T7772]  ? __fget_files+0x2a/0x420
[  607.076323][ T7772]  ? bpf_lsm_file_ioctl+0x9/0x20
[  607.076348][ T7772]  ? __pfx_blkdev_ioctl+0x10/0x10
[  607.076363][ T7772]  __se_sys_ioctl+0xfc/0x170
[  607.076379][ T7772]  do_syscall_64+0xfa/0xfa0
[  607.076393][ T7772]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  607.076405][ T7772]  ? clear_bhb_loop+0x60/0xb0
[  607.076420][ T7772]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  607.076432][ T7772] RIP: 0033:0x7f1191ab5569
[  607.076447][ T7772] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  607.076458][ T7772] RSP: 002b:00007f1191a4a208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  607.076473][ T7772] RAX: ffffffffffffffda RBX: 00007f1191b3c418 RCX: 00007f1191ab5569
[  607.076483][ T7772] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  607.076491][ T7772] RBP: 00007f1191b3c410 R08: 00007f1191a49fa6 R09: 0000000000003631
[  607.076499][ T7772] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  607.076507][ T7772] R13: 00007f1191a4a210 R14: 0000000000000002 R15: 64626e2f7665642f
[  607.076528][ T7772]  </TASK>
[  607.457322][ T7772] block nbd0: shutting down sockets
[  607.573084][ T7774] FAULT_INJECTION: forcing a failure.
[  607.573084][ T7774] name failslab, interval 1, probability 0, space 0, times 0
[  607.585767][ T7774] CPU: 1 UID: 0 PID: 7774 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  607.585786][ T7774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  607.585794][ T7774] Call Trace:
[  607.585801][ T7774]  <TASK>
[  607.585807][ T7774]  dump_stack_lvl+0x189/0x250
[  607.585829][ T7774]  ? __pfx____ratelimit+0x10/0x10
[  607.585849][ T7774]  ? __pfx_dump_stack_lvl+0x10/0x10
[  607.585867][ T7774]  ? __pfx__printk+0x10/0x10
[  607.585885][ T7774]  ? __pfx___might_resched+0x10/0x10
[  607.585901][ T7774]  ? fs_reclaim_acquire+0x7d/0x100
[  607.585919][ T7774]  should_fail_ex+0x414/0x560
[  607.585942][ T7774]  should_failslab+0xa8/0x100
[  607.585971][ T7774]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  607.585997][ T7774]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  607.586024][ T7774]  sbitmap_queue_init_node+0x1dc/0x4d0
[  607.586043][ T7774]  blk_mq_init_tags+0x15c/0x2d0
[  607.586064][ T7774]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  607.586089][ T7774]  blk_mq_alloc_sched_tags+0x141/0x370
[  607.586108][ T7774]  blk_mq_alloc_sched_res+0x92/0x360
[  607.586126][ T7774]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  607.586142][ T7774]  ? _raw_spin_unlock+0x28/0x50
[  607.586167][ T7774]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  607.586185][ T7774]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  607.586206][ T7774]  ? nbd_start_device+0x174/0xb10
[  607.586226][ T7774]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  607.586241][ T7774]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  607.586262][ T7774]  ? nbd_ioctl+0x131/0xe10
[  607.586281][ T7774]  ? __pfx___mutex_lock+0x10/0x10
[  607.586297][ T7774]  nbd_start_device+0x17f/0xb10
[  607.586321][ T7774]  nbd_ioctl+0x56e/0xe10
[  607.586342][ T7774]  ? __pfx_nbd_ioctl+0x10/0x10
[  607.586373][ T7774]  ? __pfx_nbd_ioctl+0x10/0x10
[  607.586398][ T7774]  blkdev_ioctl+0x60e/0x710
[  607.586423][ T7774]  ? __pfx_blkdev_ioctl+0x10/0x10
[  607.586441][ T7774]  ? __fget_files+0x3a0/0x420
[  607.586463][ T7774]  ? __fget_files+0x2a/0x420
[  607.586482][ T7774]  ? bpf_lsm_file_ioctl+0x9/0x20
[  607.586499][ T7774]  ? __pfx_blkdev_ioctl+0x10/0x10
[  607.586513][ T7774]  __se_sys_ioctl+0xfc/0x170
[  607.586529][ T7774]  do_syscall_64+0xfa/0xfa0
[  607.586543][ T7774]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  607.586555][ T7774]  ? clear_bhb_loop+0x60/0xb0
[  607.586570][ T7774]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  607.586596][ T7774] RIP: 0033:0x7f1191ab5569
[  607.586616][ T7774] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  607.586633][ T7774] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  607.586648][ T7774] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  607.586658][ T7774] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  607.586666][ T7774] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  607.586681][ T7774] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  607.586688][ T7774] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  607.586708][ T7774]  </TASK>
[  607.922529][ T7774] block nbd0: shutting down sockets
[  608.033237][ T7776] FAULT_INJECTION: forcing a failure.
[  608.033237][ T7776] name failslab, interval 1, probability 0, space 0, times 0
[  608.046076][ T7776] CPU: 0 UID: 0 PID: 7776 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  608.046106][ T7776] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  608.046117][ T7776] Call Trace:
[  608.046123][ T7776]  <TASK>
[  608.046129][ T7776]  dump_stack_lvl+0x189/0x250
[  608.046152][ T7776]  ? __pfx____ratelimit+0x10/0x10
[  608.046171][ T7776]  ? __pfx_dump_stack_lvl+0x10/0x10
[  608.046190][ T7776]  ? __pfx__printk+0x10/0x10
[  608.046207][ T7776]  ? __pfx___might_resched+0x10/0x10
[  608.046223][ T7776]  ? fs_reclaim_acquire+0x7d/0x100
[  608.046242][ T7776]  should_fail_ex+0x414/0x560
[  608.046261][ T7776]  should_failslab+0xa8/0x100
[  608.046279][ T7776]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  608.046295][ T7776]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  608.046311][ T7776]  sbitmap_queue_init_node+0x1dc/0x4d0
[  608.046326][ T7776]  blk_mq_init_tags+0x15c/0x2d0
[  608.046348][ T7776]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  608.046372][ T7776]  blk_mq_alloc_sched_tags+0x141/0x370
[  608.046392][ T7776]  blk_mq_alloc_sched_res+0x92/0x360
[  608.046410][ T7776]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  608.046427][ T7776]  ? _raw_spin_unlock+0x28/0x50
[  608.046452][ T7776]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  608.046470][ T7776]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  608.046491][ T7776]  ? nbd_start_device+0x174/0xb10
[  608.046512][ T7776]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  608.046527][ T7776]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  608.046548][ T7776]  ? nbd_ioctl+0x131/0xe10
[  608.046567][ T7776]  ? __pfx___mutex_lock+0x10/0x10
[  608.046583][ T7776]  nbd_start_device+0x17f/0xb10
[  608.046607][ T7776]  nbd_ioctl+0x56e/0xe10
[  608.046628][ T7776]  ? __pfx_nbd_ioctl+0x10/0x10
[  608.046653][ T7776]  ? __pfx_nbd_ioctl+0x10/0x10
[  608.046671][ T7776]  blkdev_ioctl+0x60e/0x710
[  608.046691][ T7776]  ? __pfx_blkdev_ioctl+0x10/0x10
[  608.046705][ T7776]  ? __fget_files+0x3a0/0x420
[  608.046721][ T7776]  ? __fget_files+0x2a/0x420
[  608.046740][ T7776]  ? bpf_lsm_file_ioctl+0x9/0x20
[  608.046756][ T7776]  ? __pfx_blkdev_ioctl+0x10/0x10
[  608.046771][ T7776]  __se_sys_ioctl+0xfc/0x170
[  608.046787][ T7776]  do_syscall_64+0xfa/0xfa0
[  608.046799][ T7776]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  608.046812][ T7776]  ? clear_bhb_loop+0x60/0xb0
[  608.046826][ T7776]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  608.046839][ T7776] RIP: 0033:0x7f1191ab5569
[  608.046851][ T7776] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  608.046863][ T7776] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  608.046878][ T7776] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  608.046888][ T7776] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  608.046896][ T7776] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  608.046904][ T7776] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  608.046912][ T7776] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  608.046932][ T7776]  </TASK>
[  608.472227][ T7776] block nbd0: shutting down sockets
[  608.593120][ T7778] FAULT_INJECTION: forcing a failure.
[  608.593120][ T7778] name failslab, interval 1, probability 0, space 0, times 0
[  608.605984][ T7778] CPU: 1 UID: 0 PID: 7778 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  608.606004][ T7778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  608.606013][ T7778] Call Trace:
[  608.606021][ T7778]  <TASK>
[  608.606027][ T7778]  dump_stack_lvl+0x189/0x250
[  608.606051][ T7778]  ? __pfx____ratelimit+0x10/0x10
[  608.606071][ T7778]  ? __pfx_dump_stack_lvl+0x10/0x10
[  608.606089][ T7778]  ? __pfx__printk+0x10/0x10
[  608.606108][ T7778]  ? __pfx___might_resched+0x10/0x10
[  608.606125][ T7778]  ? fs_reclaim_acquire+0x7d/0x100
[  608.606149][ T7778]  should_fail_ex+0x414/0x560
[  608.606185][ T7778]  should_failslab+0xa8/0x100
[  608.606215][ T7778]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  608.606239][ T7778]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  608.606266][ T7778]  sbitmap_queue_init_node+0x1dc/0x4d0
[  608.606289][ T7778]  blk_mq_init_tags+0x15c/0x2d0
[  608.606310][ T7778]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  608.606336][ T7778]  blk_mq_alloc_sched_tags+0x141/0x370
[  608.606356][ T7778]  blk_mq_alloc_sched_res+0x92/0x360
[  608.606374][ T7778]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  608.606390][ T7778]  ? _raw_spin_unlock+0x28/0x50
[  608.606455][ T7778]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  608.606472][ T7778]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  608.606493][ T7778]  ? nbd_start_device+0x174/0xb10
[  608.606521][ T7778]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  608.606540][ T7778]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  608.606561][ T7778]  ? nbd_ioctl+0x131/0xe10
[  608.606580][ T7778]  ? __pfx___mutex_lock+0x10/0x10
[  608.606597][ T7778]  nbd_start_device+0x17f/0xb10
[  608.606621][ T7778]  nbd_ioctl+0x56e/0xe10
[  608.606642][ T7778]  ? __pfx_nbd_ioctl+0x10/0x10
[  608.606669][ T7778]  ? __pfx_nbd_ioctl+0x10/0x10
[  608.606687][ T7778]  blkdev_ioctl+0x60e/0x710
[  608.606704][ T7778]  ? __pfx_blkdev_ioctl+0x10/0x10
[  608.606718][ T7778]  ? __fget_files+0x3a0/0x420
[  608.606734][ T7778]  ? __fget_files+0x2a/0x420
[  608.606753][ T7778]  ? bpf_lsm_file_ioctl+0x9/0x20
[  608.606771][ T7778]  ? __pfx_blkdev_ioctl+0x10/0x10
[  608.606785][ T7778]  __se_sys_ioctl+0xfc/0x170
[  608.606801][ T7778]  do_syscall_64+0xfa/0xfa0
[  608.606814][ T7778]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  608.606826][ T7778]  ? clear_bhb_loop+0x60/0xb0
[  608.606841][ T7778]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  608.606854][ T7778] RIP: 0033:0x7f1191ab5569
[  608.606867][ T7778] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  608.606879][ T7778] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  608.606894][ T7778] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  608.606903][ T7778] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  608.606911][ T7778] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  608.606920][ T7778] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  608.606928][ T7778] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  608.606948][ T7778]  </TASK>
[  608.942595][ T7778] block nbd0: shutting down sockets
[  609.043200][ T7780] FAULT_INJECTION: forcing a failure.
[  609.043200][ T7780] name failslab, interval 1, probability 0, space 0, times 0
[  609.056397][ T7780] CPU: 0 UID: 0 PID: 7780 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  609.056417][ T7780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  609.056425][ T7780] Call Trace:
[  609.056433][ T7780]  <TASK>
[  609.056440][ T7780]  dump_stack_lvl+0x189/0x250
[  609.056464][ T7780]  ? __pfx____ratelimit+0x10/0x10
[  609.056484][ T7780]  ? __pfx_dump_stack_lvl+0x10/0x10
[  609.056502][ T7780]  ? __pfx__printk+0x10/0x10
[  609.056518][ T7780]  ? __pfx___might_resched+0x10/0x10
[  609.056535][ T7780]  ? fs_reclaim_acquire+0x7d/0x100
[  609.056554][ T7780]  should_fail_ex+0x414/0x560
[  609.056575][ T7780]  should_failslab+0xa8/0x100
[  609.056593][ T7780]  __kvmalloc_node_noprof+0x175/0x910
[  609.056611][ T7780]  ? sbitmap_init_node+0x2cd/0x640
[  609.056626][ T7780]  sbitmap_init_node+0x2cd/0x640
[  609.056644][ T7780]  sbitmap_queue_init_node+0x3e/0x4d0
[  609.056659][ T7780]  blk_mq_init_tags+0x15c/0x2d0
[  609.056681][ T7780]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  609.056706][ T7780]  blk_mq_alloc_sched_tags+0x141/0x370
[  609.056726][ T7780]  blk_mq_alloc_sched_res+0x92/0x360
[  609.056744][ T7780]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  609.056761][ T7780]  ? _raw_spin_unlock+0x28/0x50
[  609.056777][ T7780]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  609.056795][ T7780]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  609.056816][ T7780]  ? nbd_start_device+0x174/0xb10
[  609.056837][ T7780]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  609.056852][ T7780]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  609.056873][ T7780]  ? nbd_ioctl+0x131/0xe10
[  609.056892][ T7780]  ? __pfx___mutex_lock+0x10/0x10
[  609.056908][ T7780]  nbd_start_device+0x17f/0xb10
[  609.056932][ T7780]  nbd_ioctl+0x56e/0xe10
[  609.056953][ T7780]  ? __pfx_nbd_ioctl+0x10/0x10
[  609.056978][ T7780]  ? __pfx_nbd_ioctl+0x10/0x10
[  609.056995][ T7780]  blkdev_ioctl+0x60e/0x710
[  609.057012][ T7780]  ? __pfx_blkdev_ioctl+0x10/0x10
[  609.057026][ T7780]  ? __fget_files+0x3a0/0x420
[  609.057043][ T7780]  ? __fget_files+0x2a/0x420
[  609.057062][ T7780]  ? bpf_lsm_file_ioctl+0x9/0x20
[  609.057078][ T7780]  ? __pfx_blkdev_ioctl+0x10/0x10
[  609.057093][ T7780]  __se_sys_ioctl+0xfc/0x170
[  609.057108][ T7780]  do_syscall_64+0xfa/0xfa0
[  609.057122][ T7780]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  609.057134][ T7780]  ? clear_bhb_loop+0x60/0xb0
[  609.057149][ T7780]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  609.057161][ T7780] RIP: 0033:0x7f1191ab5569
[  609.057174][ T7780] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  609.057185][ T7780] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  609.057200][ T7780] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  609.057209][ T7780] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  609.057217][ T7780] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  609.057226][ T7780] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  609.057234][ T7780] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  609.057253][ T7780]  </TASK>
[  609.414670][ T7780] block nbd0: shutting down sockets
[  609.532290][ T7783] block nbd0: Device being setup by another task
[  609.539037][ T7782] FAULT_INJECTION: forcing a failure.
[  609.539037][ T7782] name failslab, interval 1, probability 0, space 0, times 0
[  609.551883][ T7782] CPU: 1 UID: 0 PID: 7782 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  609.551902][ T7782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  609.551910][ T7782] Call Trace:
[  609.551916][ T7782]  <TASK>
[  609.551922][ T7782]  dump_stack_lvl+0x189/0x250
[  609.551945][ T7782]  ? __pfx____ratelimit+0x10/0x10
[  609.551965][ T7782]  ? __pfx_dump_stack_lvl+0x10/0x10
[  609.551983][ T7782]  ? __pfx__printk+0x10/0x10
[  609.552001][ T7782]  ? __pfx___might_resched+0x10/0x10
[  609.552031][ T7782]  should_fail_ex+0x414/0x560
[  609.552064][ T7782]  should_failslab+0xa8/0x100
[  609.552096][ T7782]  kmem_cache_alloc_noprof+0x88/0x700
[  609.552117][ T7782]  ? security_inode_alloc+0x39/0x330
[  609.552133][ T7782]  security_inode_alloc+0x39/0x330
[  609.552148][ T7782]  inode_init_always_gfp+0x9ed/0xdc0
[  609.552170][ T7782]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  609.552182][ T7782]  alloc_inode+0x82/0x1b0
[  609.552199][ T7782]  new_inode+0x22/0x170
[  609.552219][ T7782]  __debugfs_create_file+0xb8/0x400
[  609.552234][ T7782]  debugfs_create_file_unsafe+0x3a/0x50
[  609.552248][ T7782]  nbd_start_device+0x3b6/0xb10
[  609.552274][ T7782]  nbd_ioctl+0x56e/0xe10
[  609.552296][ T7782]  ? __pfx_nbd_ioctl+0x10/0x10
[  609.552322][ T7782]  ? __pfx_nbd_ioctl+0x10/0x10
[  609.552340][ T7782]  blkdev_ioctl+0x60e/0x710
[  609.552358][ T7782]  ? __pfx_blkdev_ioctl+0x10/0x10
[  609.552371][ T7782]  ? __fget_files+0x3a0/0x420
[  609.552396][ T7782]  ? __fget_files+0x2a/0x420
[  609.552415][ T7782]  ? bpf_lsm_file_ioctl+0x9/0x20
[  609.552432][ T7782]  ? __pfx_blkdev_ioctl+0x10/0x10
[  609.552446][ T7782]  __se_sys_ioctl+0xfc/0x170
[  609.552462][ T7782]  do_syscall_64+0xfa/0xfa0
[  609.552475][ T7782]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  609.552495][ T7782]  ? clear_bhb_loop+0x60/0xb0
[  609.552519][ T7782]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  609.552538][ T7782] RIP: 0033:0x7f1191ab5569
[  609.552557][ T7782] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  609.552575][ T7782] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  609.552591][ T7782] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  609.552601][ T7782] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  609.552609][ T7782] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  609.552617][ T7782] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  609.552625][ T7782] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  609.552650][ T7782]  </TASK>
[  609.808514][ T7782] debugfs: out of free dentries, can not create file 'timeout'
[  609.928643][ T7782] block nbd0: shutting down sockets
[  610.033155][ T7785] FAULT_INJECTION: forcing a failure.
[  610.033155][ T7785] name failslab, interval 1, probability 0, space 0, times 0
[  610.047028][ T7785] CPU: 0 UID: 0 PID: 7785 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  610.047048][ T7785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  610.047057][ T7785] Call Trace:
[  610.047062][ T7785]  <TASK>
[  610.047068][ T7785]  dump_stack_lvl+0x189/0x250
[  610.047091][ T7785]  ? __pfx____ratelimit+0x10/0x10
[  610.047110][ T7785]  ? __pfx_dump_stack_lvl+0x10/0x10
[  610.047128][ T7785]  ? __pfx__printk+0x10/0x10
[  610.047146][ T7785]  ? __pfx___might_resched+0x10/0x10
[  610.047162][ T7785]  ? fs_reclaim_acquire+0x7d/0x100
[  610.047181][ T7785]  should_fail_ex+0x414/0x560
[  610.047201][ T7785]  should_failslab+0xa8/0x100
[  610.047220][ T7785]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  610.047235][ T7785]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  610.047252][ T7785]  sbitmap_queue_init_node+0x1dc/0x4d0
[  610.047266][ T7785]  blk_mq_init_tags+0x15c/0x2d0
[  610.047287][ T7785]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  610.047311][ T7785]  blk_mq_alloc_sched_tags+0x141/0x370
[  610.047331][ T7785]  blk_mq_alloc_sched_res+0x92/0x360
[  610.047349][ T7785]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  610.047365][ T7785]  ? _raw_spin_unlock+0x28/0x50
[  610.047381][ T7785]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  610.047399][ T7785]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  610.047422][ T7785]  ? nbd_start_device+0x174/0xb10
[  610.047443][ T7785]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  610.047458][ T7785]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  610.047478][ T7785]  ? nbd_ioctl+0x131/0xe10
[  610.047498][ T7785]  ? __pfx___mutex_lock+0x10/0x10
[  610.047514][ T7785]  nbd_start_device+0x17f/0xb10
[  610.047541][ T7785]  nbd_ioctl+0x56e/0xe10
[  610.047562][ T7785]  ? __pfx_nbd_ioctl+0x10/0x10
[  610.047587][ T7785]  ? __pfx_nbd_ioctl+0x10/0x10
[  610.047605][ T7785]  blkdev_ioctl+0x60e/0x710
[  610.047622][ T7785]  ? __pfx_blkdev_ioctl+0x10/0x10
[  610.047635][ T7785]  ? __fget_files+0x3a0/0x420
[  610.047651][ T7785]  ? __fget_files+0x2a/0x420
[  610.047677][ T7785]  ? bpf_lsm_file_ioctl+0x9/0x20
[  610.047695][ T7785]  ? __pfx_blkdev_ioctl+0x10/0x10
[  610.047709][ T7785]  __se_sys_ioctl+0xfc/0x170
[  610.047725][ T7785]  do_syscall_64+0xfa/0xfa0
[  610.047738][ T7785]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  610.047750][ T7785]  ? clear_bhb_loop+0x60/0xb0
[  610.047765][ T7785]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  610.047777][ T7785] RIP: 0033:0x7f1191ab5569
[  610.047790][ T7785] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  610.047801][ T7785] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  610.047816][ T7785] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  610.047825][ T7785] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  610.047834][ T7785] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  610.047842][ T7785] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  610.047850][ T7785] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  610.047870][ T7785]  </TASK>
[  610.470718][ T7785] block nbd0: shutting down sockets
[  610.583268][ T7787] FAULT_INJECTION: forcing a failure.
[  610.583268][ T7787] name failslab, interval 1, probability 0, space 0, times 0
[  610.596040][ T7787] CPU: 1 UID: 0 PID: 7787 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  610.596065][ T7787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  610.596073][ T7787] Call Trace:
[  610.596081][ T7787]  <TASK>
[  610.596087][ T7787]  dump_stack_lvl+0x189/0x250
[  610.596111][ T7787]  ? __pfx____ratelimit+0x10/0x10
[  610.596130][ T7787]  ? __pfx_dump_stack_lvl+0x10/0x10
[  610.596148][ T7787]  ? __pfx__printk+0x10/0x10
[  610.596166][ T7787]  ? __pfx___might_resched+0x10/0x10
[  610.596188][ T7787]  ? fs_reclaim_acquire+0x7d/0x100
[  610.596207][ T7787]  should_fail_ex+0x414/0x560
[  610.596228][ T7787]  should_failslab+0xa8/0x100
[  610.596246][ T7787]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  610.596262][ T7787]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  610.596278][ T7787]  sbitmap_queue_init_node+0x1dc/0x4d0
[  610.596293][ T7787]  blk_mq_init_tags+0x15c/0x2d0
[  610.596314][ T7787]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  610.596340][ T7787]  blk_mq_alloc_sched_tags+0x141/0x370
[  610.596360][ T7787]  blk_mq_alloc_sched_res+0x92/0x360
[  610.596377][ T7787]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  610.596396][ T7787]  ? _raw_spin_unlock+0x28/0x50
[  610.596414][ T7787]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  610.596431][ T7787]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  610.596452][ T7787]  ? nbd_start_device+0x174/0xb10
[  610.596473][ T7787]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  610.596488][ T7787]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  610.596508][ T7787]  ? nbd_ioctl+0x131/0xe10
[  610.596528][ T7787]  ? __pfx___mutex_lock+0x10/0x10
[  610.596544][ T7787]  nbd_start_device+0x17f/0xb10
[  610.596569][ T7787]  nbd_ioctl+0x56e/0xe10
[  610.596590][ T7787]  ? __pfx_nbd_ioctl+0x10/0x10
[  610.596615][ T7787]  ? __pfx_nbd_ioctl+0x10/0x10
[  610.596633][ T7787]  blkdev_ioctl+0x60e/0x710
[  610.596658][ T7787]  ? __pfx_blkdev_ioctl+0x10/0x10
[  610.596672][ T7787]  ? __fget_files+0x3a0/0x420
[  610.596689][ T7787]  ? __fget_files+0x2a/0x420
[  610.596708][ T7787]  ? bpf_lsm_file_ioctl+0x9/0x20
[  610.596725][ T7787]  ? __pfx_blkdev_ioctl+0x10/0x10
[  610.596740][ T7787]  __se_sys_ioctl+0xfc/0x170
[  610.596755][ T7787]  do_syscall_64+0xfa/0xfa0
[  610.596769][ T7787]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  610.596781][ T7787]  ? clear_bhb_loop+0x60/0xb0
[  610.596796][ T7787]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  610.596808][ T7787] RIP: 0033:0x7f1191ab5569
[  610.596821][ T7787] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  610.596832][ T7787] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  610.596847][ T7787] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  610.596857][ T7787] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  610.596865][ T7787] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  610.596873][ T7787] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  610.596881][ T7787] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  610.596902][ T7787]  </TASK>
[  611.024668][ T7787] block nbd0: shutting down sockets
[  611.172337][ T7790] block nbd0: Device being setup by another task
[  611.179241][ T7789] FAULT_INJECTION: forcing a failure.
[  611.179241][ T7789] name failslab, interval 1, probability 0, space 0, times 0
[  611.192191][ T7789] CPU: 0 UID: 0 PID: 7789 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  611.192222][ T7789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  611.192234][ T7789] Call Trace:
[  611.192247][ T7789]  <TASK>
[  611.192257][ T7789]  dump_stack_lvl+0x189/0x250
[  611.192284][ T7789]  ? __pfx____ratelimit+0x10/0x10
[  611.192304][ T7789]  ? __pfx_dump_stack_lvl+0x10/0x10
[  611.192322][ T7789]  ? __pfx__printk+0x10/0x10
[  611.192340][ T7789]  ? __pfx___might_resched+0x10/0x10
[  611.192361][ T7789]  should_fail_ex+0x414/0x560
[  611.192382][ T7789]  should_failslab+0xa8/0x100
[  611.192409][ T7789]  kmem_cache_alloc_noprof+0x88/0x700
[  611.192423][ T7789]  ? security_inode_alloc+0x39/0x330
[  611.192440][ T7789]  security_inode_alloc+0x39/0x330
[  611.192454][ T7789]  inode_init_always_gfp+0x9ed/0xdc0
[  611.192475][ T7789]  ? __pfx_debugfs_alloc_inode+0x10/0x10
[  611.192488][ T7789]  alloc_inode+0x82/0x1b0
[  611.192506][ T7789]  new_inode+0x22/0x170
[  611.192526][ T7789]  __debugfs_create_file+0xb8/0x400
[  611.192540][ T7789]  debugfs_create_file_unsafe+0x3a/0x50
[  611.192554][ T7789]  nbd_start_device+0x3b6/0xb10
[  611.192580][ T7789]  nbd_ioctl+0x56e/0xe10
[  611.192602][ T7789]  ? __pfx_nbd_ioctl+0x10/0x10
[  611.192627][ T7789]  ? __pfx_nbd_ioctl+0x10/0x10
[  611.192652][ T7789]  blkdev_ioctl+0x60e/0x710
[  611.192670][ T7789]  ? __pfx_blkdev_ioctl+0x10/0x10
[  611.192684][ T7789]  ? __fget_files+0x3a0/0x420
[  611.192700][ T7789]  ? __fget_files+0x2a/0x420
[  611.192719][ T7789]  ? bpf_lsm_file_ioctl+0x9/0x20
[  611.192736][ T7789]  ? __pfx_blkdev_ioctl+0x10/0x10
[  611.192751][ T7789]  __se_sys_ioctl+0xfc/0x170
[  611.192766][ T7789]  do_syscall_64+0xfa/0xfa0
[  611.192779][ T7789]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  611.192791][ T7789]  ? clear_bhb_loop+0x60/0xb0
[  611.192806][ T7789]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  611.192819][ T7789] RIP: 0033:0x7f1191ab5569
[  611.192832][ T7789] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
[  611.192843][ T7789] RSP: 002b:00007f1191a6b208 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  611.192858][ T7789] RAX: ffffffffffffffda RBX: 00007f1191b3c408 RCX: 00007f1191ab5569
[  611.192868][ T7789] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000007
[  611.192876][ T7789] RBP: 00007f1191b3c400 R08: 00007f1191a6afa6 R09: 0000000000003631
[  611.192884][ T7789] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1191b09194
[  611.192892][ T7789] R13: 00007f1191a6b210 R14: 0000000000000002 R15: 64626e2f7665642f
[  611.192919][ T7789]  </TASK>
[  611.192953][ T7789] debugfs: out of free dentries, can not create file 'timeout'
[  611.502676][ T7789] block nbd0: shutting down sockets
[  611.622582][ T7793] FAULT_INJECTION: forcing a failure.
[  611.622582][ T7793] name failslab, interval 1, probability 0, space 0, times 0
[  611.635526][ T7793] CPU: 0 UID: 0 PID: 7793 Comm: syz-executor257 Not tainted syzkaller #0 PREEMPT(full) 
[  611.635546][ T7793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[  611.635554][ T7793] Call Trace:
[  611.635562][ T7793]  <TASK>
[  611.635569][ T7793]  dump_stack_lvl+0x189/0x250
[  611.635592][ T7793]  ? __pfx____ratelimit+0x10/0x10
[  611.635614][ T7793]  ? __pfx_dump_stack_lvl+0x10/0x10
[  611.635632][ T7793]  ? __pfx__printk+0x10/0x10
[  611.635650][ T7793]  ? __pfx___might_resched+0x10/0x10
[  611.635666][ T7793]  ? fs_reclaim_acquire+0x7d/0x100
[  611.635685][ T7793]  should_fail_ex+0x414/0x560
[  611.635705][ T7793]  should_failslab+0xa8/0x100
[  611.635724][ T7793]  __kmalloc_cache_node_noprof+0x88/0x6f0
[  611.635739][ T7793]  ? sbitmap_queue_init_node+0x1dc/0x4d0
[  611.635756][ T7793]  sbitmap_queue_init_node+0x1dc/0x4d0
[  611.635770][ T7793]  blk_mq_init_tags+0x15c/0x2d0
[  611.635791][ T7793]  blk_mq_alloc_map_and_rqs+0xbb/0x9c0
[  611.635815][ T7793]  blk_mq_alloc_sched_tags+0x141/0x370
[  611.635835][ T7793]  blk_mq_alloc_sched_res+0x92/0x360
[  611.635853][ T7793]  blk_mq_alloc_sched_res_batch+0x18b/0x670
[  611.635869][ T7793]  ? _raw_spin_unlock+0x28/0x50
[  611.635885][ T7793]  ? blk_mq_alloc_sched_ctx_batch+0x1f5/0x260
[  611.635903][ T7793]  blk_mq_update_nr_hw_queues+0x2c3/0x1a80
[  611.635923][ T7793]  ? nbd_start_device+0x174/0xb10
[  611.635943][ T7793]  ? __mutex_unlock_slowpath+0x1a1/0x740
[  611.635958][ T7793]  ? __pfx_blk_mq_update_nr_hw_queues+0x10/0x10
[  611.635978][ T7793]  ? nbd_ioctl+0x131/0xe10
[  611.635997][ T7793]  ? __pfx___mutex_lock+0x10/0x10
[  611.636013][ T7793]  nbd_start_device+0x17f/0xb10
[  611.636037][ T7793]  nbd_ioctl+0x56e/0xe10
[  611.636057][ T7793]  ? __pfx_nbd_ioctl+0x10/0x10
[  611.636083][ T7793]  ? __pfx_nbd_ioctl+0x10/0x10
[  611.636101][ T7793]  blkdev_ioctl+0x60e/0x710
[  611.636118][ T7793]  ? __pfx_blkdev_ioctl+0x10/0x10
[  611.636131][ T7793]  ? __fget_files+0x3a0/0x420
[  611.636148][ T7793]  ? __fget_files+0x2a/0x420
[  611.636167][ T7793]  ? bpf_lsm_file_ioctl+0x9/0x20
[  611.636184][ T7793]  ? __pfx_blkdev_ioctl+0x10/0x10
[  611.636199][ T7793]  __se_sys_ioctl+0xfc/0x170
[  611.636220][ T7793]  do_syscall_64+0xfa/0xfa0
[  611.636241][ T7793]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  611.636262][ T7793]  ? clear_bhb_loop+0x60/0xb0
[  611.636286][ T7793]  entry_SYSCALL_64_after_hwframe+0x77/0x7f