+0x3c0/0x51c [ 536.717587][T13772] __should_failslab+0xbc/0x10c [ 536.718290][T13772] should_failslab+0x10/0x28 [ 536.718945][T13772] slab_pre_alloc_hook+0x64/0xec [ 536.719646][T13772] __kmalloc_node+0xb8/0x520 [ 536.720307][T13772] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 536.721061][T13772] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 536.721916][T13772] nbd_start_device+0x14c/0xb40 [ 536.722610][T13772] nbd_ioctl+0x514/0xc50 [ 536.723178][T13772] blkdev_ioctl+0x5f8/0xbb8 [ 536.723825][T13772] block_ioctl+0xa4/0x118 [ 536.724422][T13772] __arm64_sys_ioctl+0x14c/0x1c8 [ 536.725138][T13772] invoke_syscall+0x98/0x2b8 [ 536.725776][T13772] el0_svc_common+0x138/0x258 [ 536.726400][T13772] do_el0_svc+0x58/0x14c [ 536.726983][T13772] el0_svc+0x78/0x1e0 [ 536.727589][T13772] el0t_64_sync_handler+0xcc/0xe4 [ 536.728320][T13772] el0t_64_sync+0x1a0/0x1a4 [ 536.729109][T13772] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 536.731627][T13773] block nbd0: shutting down sockets [ 536.859086][T13775] FAULT_INJECTION: forcing a failure. [ 536.859086][T13775] name failslab, interval 1, probability 0, space 0, times 0 [ 536.861120][T13775] CPU: 1 PID: 13775 Comm: syz-executor358 Not tainted syzkaller #0 [ 536.862323][T13775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 536.863783][T13775] Call trace: [ 536.864305][T13775] dump_backtrace+0x0/0x43c [ 536.864917][T13775] show_stack+0x2c/0x3c [ 536.865539][T13775] __dump_stack+0x30/0x40 [ 536.866168][T13775] dump_stack_lvl+0xf8/0x160 [ 536.866821][T13775] dump_stack+0x1c/0x5c [ 536.867426][T13775] should_fail+0x3c0/0x51c [ 536.868091][T13775] __should_failslab+0xbc/0x10c [ 536.868784][T13775] should_failslab+0x10/0x28 [ 536.869469][T13775] slab_pre_alloc_hook+0x64/0xec [ 536.870199][T13775] __kmalloc_node+0xb8/0x520 [ 536.870833][T13775] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 536.871581][T13775] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 536.872422][T13775] nbd_start_device+0x14c/0xb40 [ 536.873146][T13775] nbd_ioctl+0x514/0xc50 [ 536.873765][T13775] blkdev_ioctl+0x5f8/0xbb8 [ 536.874406][T13775] block_ioctl+0xa4/0x118 [ 536.874979][T13775] __arm64_sys_ioctl+0x14c/0x1c8 [ 536.875659][T13775] invoke_syscall+0x98/0x2b8 [ 536.876348][T13775] el0_svc_common+0x138/0x258 [ 536.877001][T13775] do_el0_svc+0x58/0x14c [ 536.877624][T13775] el0_svc+0x78/0x1e0 [ 536.878194][T13775] el0t_64_sync_handler+0xcc/0xe4 [ 536.878928][T13775] el0t_64_sync+0x1a0/0x1a4 [ 536.879747][T13775] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 536.882211][T13776] block nbd0: shutting down sockets [ 537.009054][T13778] FAULT_INJECTION: forcing a failure. [ 537.009054][T13778] name failslab, interval 1, probability 0, space 0, times 0 [ 537.010995][T13778] CPU: 0 PID: 13778 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.012135][T13778] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.013607][T13778] Call trace: [ 537.014091][T13778] dump_backtrace+0x0/0x43c [ 537.014755][T13778] show_stack+0x2c/0x3c [ 537.015280][T13778] __dump_stack+0x30/0x40 [ 537.015882][T13778] dump_stack_lvl+0xf8/0x160 [ 537.016525][T13778] dump_stack+0x1c/0x5c [ 537.017079][T13778] should_fail+0x3c0/0x51c [ 537.017749][T13778] __should_failslab+0xbc/0x10c [ 537.018520][T13778] should_failslab+0x10/0x28 [ 537.019198][T13778] slab_pre_alloc_hook+0x64/0xec [ 537.019935][T13778] __kmalloc_node+0xb8/0x520 [ 537.020595][T13778] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.021375][T13778] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.022218][T13778] nbd_start_device+0x14c/0xb40 [ 537.022967][T13778] nbd_ioctl+0x514/0xc50 [ 537.023600][T13778] blkdev_ioctl+0x5f8/0xbb8 [ 537.024283][T13778] block_ioctl+0xa4/0x118 [ 537.024949][T13778] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.025698][T13778] invoke_syscall+0x98/0x2b8 [ 537.026392][T13778] el0_svc_common+0x138/0x258 [ 537.027078][T13778] do_el0_svc+0x58/0x14c [ 537.027716][T13778] el0_svc+0x78/0x1e0 [ 537.028261][T13778] el0t_64_sync_handler+0xcc/0xe4 [ 537.029035][T13778] el0t_64_sync+0x1a0/0x1a4 [ 537.029778][T13778] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.032577][T13779] block nbd0: shutting down sockets [ 537.169058][T13781] FAULT_INJECTION: forcing a failure. [ 537.169058][T13781] name failslab, interval 1, probability 0, space 0, times 0 [ 537.171153][T13781] CPU: 0 PID: 13781 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.172348][T13781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.173765][T13781] Call trace: [ 537.174303][T13781] dump_backtrace+0x0/0x43c [ 537.174953][T13781] show_stack+0x2c/0x3c [ 537.175490][T13781] __dump_stack+0x30/0x40 [ 537.176158][T13781] dump_stack_lvl+0xf8/0x160 [ 537.176864][T13781] dump_stack+0x1c/0x5c [ 537.177523][T13781] should_fail+0x3c0/0x51c [ 537.178192][T13781] __should_failslab+0xbc/0x10c [ 537.178899][T13781] should_failslab+0x10/0x28 [ 537.179577][T13781] slab_pre_alloc_hook+0x64/0xec [ 537.180352][T13781] __kmalloc_node+0xb8/0x520 [ 537.181009][T13781] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.181795][T13781] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.182648][T13781] nbd_start_device+0x14c/0xb40 [ 537.183350][T13781] nbd_ioctl+0x514/0xc50 [ 537.183957][T13781] blkdev_ioctl+0x5f8/0xbb8 [ 537.184591][T13781] block_ioctl+0xa4/0x118 [ 537.185220][T13781] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.185896][T13781] invoke_syscall+0x98/0x2b8 [ 537.186490][T13781] el0_svc_common+0x138/0x258 [ 537.187169][T13781] do_el0_svc+0x58/0x14c [ 537.187775][T13781] el0_svc+0x78/0x1e0 [ 537.188311][T13781] el0t_64_sync_handler+0xcc/0xe4 [ 537.189044][T13781] el0t_64_sync+0x1a0/0x1a4 [ 537.189795][T13781] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.192161][T13782] block nbd0: shutting down sockets [ 537.319137][T13784] FAULT_INJECTION: forcing a failure. [ 537.319137][T13784] name failslab, interval 1, probability 0, space 0, times 0 [ 537.321028][T13784] CPU: 0 PID: 13784 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.322098][T13784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.323433][T13784] Call trace: [ 537.323890][T13784] dump_backtrace+0x0/0x43c [ 537.324561][T13784] show_stack+0x2c/0x3c [ 537.325169][T13784] __dump_stack+0x30/0x40 [ 537.325767][T13784] dump_stack_lvl+0xf8/0x160 [ 537.326460][T13784] dump_stack+0x1c/0x5c [ 537.327024][T13784] should_fail+0x3c0/0x51c [ 537.327738][T13784] __should_failslab+0xbc/0x10c [ 537.328412][T13784] should_failslab+0x10/0x28 [ 537.329064][T13784] slab_pre_alloc_hook+0x64/0xec [ 537.329899][T13784] __kmalloc_node+0xb8/0x520 [ 537.330626][T13784] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.331476][T13784] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.332375][T13784] nbd_start_device+0x14c/0xb40 [ 537.333108][T13784] nbd_ioctl+0x514/0xc50 [ 537.333767][T13784] blkdev_ioctl+0x5f8/0xbb8 [ 537.334442][T13784] block_ioctl+0xa4/0x118 [ 537.335072][T13784] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.335805][T13784] invoke_syscall+0x98/0x2b8 [ 537.336461][T13784] el0_svc_common+0x138/0x258 [ 537.337086][T13784] do_el0_svc+0x58/0x14c [ 537.337718][T13784] el0_svc+0x78/0x1e0 [ 537.338323][T13784] el0t_64_sync_handler+0xcc/0xe4 [ 537.339069][T13784] el0t_64_sync+0x1a0/0x1a4 [ 537.340208][T13784] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.342742][T13785] block nbd0: shutting down sockets [ 537.509093][T13788] FAULT_INJECTION: forcing a failure. [ 537.509093][T13788] name failslab, interval 1, probability 0, space 0, times 0 [ 537.510957][T13788] CPU: 1 PID: 13788 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.512101][T13788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.513434][T13788] Call trace: [ 537.513923][T13788] dump_backtrace+0x0/0x43c [ 537.514656][T13788] show_stack+0x2c/0x3c [ 537.515254][T13788] __dump_stack+0x30/0x40 [ 537.515868][T13788] dump_stack_lvl+0xf8/0x160 [ 537.516523][T13788] dump_stack+0x1c/0x5c [ 537.517098][T13788] should_fail+0x3c0/0x51c [ 537.517810][T13788] __should_failslab+0xbc/0x10c [ 537.518540][T13788] should_failslab+0x10/0x28 [ 537.519258][T13788] slab_pre_alloc_hook+0x64/0xec [ 537.519955][T13788] __kmalloc_node+0xb8/0x520 [ 537.520647][T13788] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.521436][T13788] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.522244][T13788] nbd_start_device+0x14c/0xb40 [ 537.522908][T13788] nbd_ioctl+0x514/0xc50 [ 537.523524][T13788] blkdev_ioctl+0x5f8/0xbb8 [ 537.524149][T13788] block_ioctl+0xa4/0x118 [ 537.524784][T13788] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.525423][T13788] invoke_syscall+0x98/0x2b8 [ 537.526058][T13788] el0_svc_common+0x138/0x258 [ 537.526685][T13788] do_el0_svc+0x58/0x14c [ 537.527258][T13788] el0_svc+0x78/0x1e0 [ 537.527788][T13788] el0t_64_sync_handler+0xcc/0xe4 [ 537.528431][T13788] el0t_64_sync+0x1a0/0x1a4 [ 537.529165][T13788] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.531977][T13787] block nbd0: shutting down sockets [ 537.649109][T13790] FAULT_INJECTION: forcing a failure. [ 537.649109][T13790] name failslab, interval 1, probability 0, space 0, times 0 [ 537.650929][T13790] CPU: 1 PID: 13790 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.652159][T13790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.653540][T13790] Call trace: [ 537.653976][T13790] dump_backtrace+0x0/0x43c [ 537.654593][T13790] show_stack+0x2c/0x3c [ 537.655193][T13790] __dump_stack+0x30/0x40 [ 537.655922][T13790] dump_stack_lvl+0xf8/0x160 [ 537.656636][T13790] dump_stack+0x1c/0x5c [ 537.657255][T13790] should_fail+0x3c0/0x51c [ 537.657922][T13790] __should_failslab+0xbc/0x10c [ 537.658592][T13790] should_failslab+0x10/0x28 [ 537.659237][T13790] slab_pre_alloc_hook+0x64/0xec [ 537.659969][T13790] __kmalloc_node+0xb8/0x520 [ 537.660645][T13790] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.661420][T13790] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.662250][T13790] nbd_start_device+0x14c/0xb40 [ 537.662998][T13790] nbd_ioctl+0x514/0xc50 [ 537.663608][T13790] blkdev_ioctl+0x5f8/0xbb8 [ 537.664297][T13790] block_ioctl+0xa4/0x118 [ 537.664944][T13790] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.665650][T13790] invoke_syscall+0x98/0x2b8 [ 537.666323][T13790] el0_svc_common+0x138/0x258 [ 537.666965][T13790] do_el0_svc+0x58/0x14c [ 537.667558][T13790] el0_svc+0x78/0x1e0 [ 537.668084][T13790] el0t_64_sync_handler+0xcc/0xe4 [ 537.668754][T13790] el0t_64_sync+0x1a0/0x1a4 [ 537.669496][T13790] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.671835][T13792] block nbd0: shutting down sockets [ 537.799051][T13794] FAULT_INJECTION: forcing a failure. [ 537.799051][T13794] name failslab, interval 1, probability 0, space 0, times 0 [ 537.800974][T13794] CPU: 1 PID: 13794 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.802213][T13794] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.803661][T13794] Call trace: [ 537.804115][T13794] dump_backtrace+0x0/0x43c [ 537.804681][T13794] show_stack+0x2c/0x3c [ 537.805278][T13794] __dump_stack+0x30/0x40 [ 537.805881][T13794] dump_stack_lvl+0xf8/0x160 [ 537.806536][T13794] dump_stack+0x1c/0x5c [ 537.807111][T13794] should_fail+0x3c0/0x51c [ 537.807696][T13794] __should_failslab+0xbc/0x10c [ 537.808376][T13794] should_failslab+0x10/0x28 [ 537.809025][T13794] slab_pre_alloc_hook+0x64/0xec [ 537.809729][T13794] __kmalloc_node+0xb8/0x520 [ 537.810379][T13794] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 537.811085][T13794] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 537.811874][T13794] nbd_start_device+0x14c/0xb40 [ 537.812548][T13794] nbd_ioctl+0x514/0xc50 [ 537.813163][T13794] blkdev_ioctl+0x5f8/0xbb8 [ 537.813813][T13794] block_ioctl+0xa4/0x118 [ 537.814410][T13794] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.815132][T13794] invoke_syscall+0x98/0x2b8 [ 537.815824][T13794] el0_svc_common+0x138/0x258 [ 537.816508][T13794] do_el0_svc+0x58/0x14c [ 537.817116][T13794] el0_svc+0x78/0x1e0 [ 537.817671][T13794] el0t_64_sync_handler+0xcc/0xe4 [ 537.818398][T13794] el0t_64_sync+0x1a0/0x1a4 [ 537.819153][T13794] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 537.821550][T13795] block nbd0: shutting down sockets [ 537.927091][T13798] block nbd0: Device being setup by another task [ 537.928407][T13797] FAULT_INJECTION: forcing a failure. [ 537.928407][T13797] name failslab, interval 1, probability 0, space 0, times 0 [ 537.930343][T13797] CPU: 0 PID: 13797 Comm: syz-executor358 Not tainted syzkaller #0 [ 537.931578][T13797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 537.933016][T13797] Call trace: [ 537.933518][T13797] dump_backtrace+0x0/0x43c [ 537.934179][T13797] show_stack+0x2c/0x3c [ 537.934796][T13797] __dump_stack+0x30/0x40 [ 537.935457][T13797] dump_stack_lvl+0xf8/0x160 [ 537.936116][T13797] dump_stack+0x1c/0x5c [ 537.936765][T13797] should_fail+0x3c0/0x51c [ 537.937483][T13797] __should_failslab+0xbc/0x10c [ 537.938183][T13797] should_failslab+0x10/0x28 [ 537.938858][T13797] slab_pre_alloc_hook+0x64/0xec [ 537.939676][T13797] kmem_cache_alloc+0x94/0x3e4 [ 537.940426][T13797] new_inode_pseudo+0x10c/0x1fc [ 537.941152][T13797] new_inode+0x38/0x174 [ 537.941766][T13797] debugfs_create_dir+0xec/0x3f4 [ 537.942511][T13797] nbd_start_device+0x3c8/0xb40 [ 537.943202][T13797] nbd_ioctl+0x514/0xc50 [ 537.943825][T13797] blkdev_ioctl+0x5f8/0xbb8 [ 537.944443][T13797] block_ioctl+0xa4/0x118 [ 537.945094][T13797] __arm64_sys_ioctl+0x14c/0x1c8 [ 537.945761][T13797] invoke_syscall+0x98/0x2b8 [ 537.946373][T13797] el0_svc_common+0x138/0x258 [ 537.947031][T13797] do_el0_svc+0x58/0x14c [ 537.947666][T13797] el0_svc+0x78/0x1e0 [ 537.948263][T13797] el0t_64_sync_handler+0xcc/0xe4 [ 537.949008][T13797] el0t_64_sync+0x1a0/0x1a4 [ 537.949724][T13797] debugfs: out of free dentries, can not create directory 'nbd0' [ 537.950905][T13797] block nbd0: Failed to create debugfs dir for 'nbd0' [ 537.979191][T13798] block nbd0: shutting down sockets [ 538.109108][T13800] FAULT_INJECTION: forcing a failure. [ 538.109108][T13800] name failslab, interval 1, probability 0, space 0, times 0 [ 538.110972][T13800] CPU: 1 PID: 13800 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.112041][T13800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.113456][T13800] Call trace: [ 538.113921][T13800] dump_backtrace+0x0/0x43c [ 538.114553][T13800] show_stack+0x2c/0x3c [ 538.115132][T13800] __dump_stack+0x30/0x40 [ 538.115915][T13800] dump_stack_lvl+0xf8/0x160 [ 538.116599][T13800] dump_stack+0x1c/0x5c [ 538.117245][T13800] should_fail+0x3c0/0x51c [ 538.117892][T13800] __should_failslab+0xbc/0x10c [ 538.118650][T13800] should_failslab+0x10/0x28 [ 538.119309][T13800] slab_pre_alloc_hook+0x64/0xec [ 538.120004][T13800] __kmalloc_node+0xb8/0x520 [ 538.120803][T13800] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 538.121637][T13800] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 538.122493][T13800] nbd_start_device+0x14c/0xb40 [ 538.123198][T13800] nbd_ioctl+0x514/0xc50 [ 538.123807][T13800] blkdev_ioctl+0x5f8/0xbb8 [ 538.124409][T13800] block_ioctl+0xa4/0x118 [ 538.125018][T13800] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.125718][T13800] invoke_syscall+0x98/0x2b8 [ 538.126377][T13800] el0_svc_common+0x138/0x258 [ 538.127069][T13800] do_el0_svc+0x58/0x14c [ 538.127644][T13800] el0_svc+0x78/0x1e0 [ 538.128235][T13800] el0t_64_sync_handler+0xcc/0xe4 [ 538.128915][T13800] el0t_64_sync+0x1a0/0x1a4 [ 538.129649][T13800] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 538.132025][T13801] block nbd0: shutting down sockets [ 538.259046][T13803] FAULT_INJECTION: forcing a failure. [ 538.259046][T13803] name failslab, interval 1, probability 0, space 0, times 0 [ 538.260794][T13803] CPU: 1 PID: 13803 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.261824][T13803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.263148][T13803] Call trace: [ 538.263559][T13803] dump_backtrace+0x0/0x43c [ 538.264181][T13803] show_stack+0x2c/0x3c [ 538.264753][T13803] __dump_stack+0x30/0x40 [ 538.265333][T13803] dump_stack_lvl+0xf8/0x160 [ 538.265972][T13803] dump_stack+0x1c/0x5c [ 538.266556][T13803] should_fail+0x3c0/0x51c [ 538.267134][T13803] __should_failslab+0xbc/0x10c [ 538.267791][T13803] should_failslab+0x10/0x28 [ 538.268425][T13803] slab_pre_alloc_hook+0x64/0xec [ 538.269115][T13803] __kmalloc_node+0xb8/0x520 [ 538.269737][T13803] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 538.270482][T13803] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 538.271279][T13803] nbd_start_device+0x14c/0xb40 [ 538.271953][T13803] nbd_ioctl+0x514/0xc50 [ 538.272537][T13803] blkdev_ioctl+0x5f8/0xbb8 [ 538.273132][T13803] block_ioctl+0xa4/0x118 [ 538.273741][T13803] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.274460][T13803] invoke_syscall+0x98/0x2b8 [ 538.275094][T13803] el0_svc_common+0x138/0x258 [ 538.275764][T13803] do_el0_svc+0x58/0x14c [ 538.276350][T13803] el0_svc+0x78/0x1e0 [ 538.276899][T13803] el0t_64_sync_handler+0xcc/0xe4 [ 538.277570][T13803] el0t_64_sync+0x1a0/0x1a4 [ 538.278303][T13803] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 538.281121][T13804] block nbd0: shutting down sockets [ 538.409056][T13806] FAULT_INJECTION: forcing a failure. [ 538.409056][T13806] name failslab, interval 1, probability 0, space 0, times 0 [ 538.411031][T13806] CPU: 1 PID: 13806 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.412085][T13806] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.413424][T13806] Call trace: [ 538.413840][T13806] dump_backtrace+0x0/0x43c [ 538.414463][T13806] show_stack+0x2c/0x3c [ 538.414993][T13806] __dump_stack+0x30/0x40 [ 538.415593][T13806] dump_stack_lvl+0xf8/0x160 [ 538.416225][T13806] dump_stack+0x1c/0x5c [ 538.416773][T13806] should_fail+0x3c0/0x51c [ 538.417368][T13806] __should_failslab+0xbc/0x10c [ 538.418033][T13806] should_failslab+0x10/0x28 [ 538.418668][T13806] slab_pre_alloc_hook+0x64/0xec [ 538.419352][T13806] __kmalloc_node+0xb8/0x520 [ 538.419991][T13806] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 538.420729][T13806] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 538.421539][T13806] nbd_start_device+0x14c/0xb40 [ 538.422183][T13806] nbd_ioctl+0x514/0xc50 [ 538.422769][T13806] blkdev_ioctl+0x5f8/0xbb8 [ 538.423380][T13806] block_ioctl+0xa4/0x118 [ 538.423996][T13806] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.424655][T13806] invoke_syscall+0x98/0x2b8 [ 538.425259][T13806] el0_svc_common+0x138/0x258 [ 538.425877][T13806] do_el0_svc+0x58/0x14c [ 538.426447][T13806] el0_svc+0x78/0x1e0 [ 538.427000][T13806] el0t_64_sync_handler+0xcc/0xe4 [ 538.427705][T13806] el0t_64_sync+0x1a0/0x1a4 [ 538.428445][T13806] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 538.430730][T13807] block nbd0: shutting down sockets [ 538.569045][T13809] FAULT_INJECTION: forcing a failure. [ 538.569045][T13809] name failslab, interval 1, probability 0, space 0, times 0 [ 538.570736][T13809] CPU: 1 PID: 13809 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.571762][T13809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.573115][T13809] Call trace: [ 538.573546][T13809] dump_backtrace+0x0/0x43c [ 538.574154][T13809] show_stack+0x2c/0x3c [ 538.574677][T13809] __dump_stack+0x30/0x40 [ 538.575247][T13809] dump_stack_lvl+0xf8/0x160 [ 538.575839][T13809] dump_stack+0x1c/0x5c [ 538.576372][T13809] should_fail+0x3c0/0x51c [ 538.576979][T13809] __should_failslab+0xbc/0x10c [ 538.577619][T13809] should_failslab+0x10/0x28 [ 538.578330][T13809] slab_pre_alloc_hook+0x64/0xec [ 538.579044][T13809] __kmalloc_node+0xb8/0x520 [ 538.579711][T13809] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 538.580451][T13809] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 538.581248][T13809] nbd_start_device+0x14c/0xb40 [ 538.581913][T13809] nbd_ioctl+0x514/0xc50 [ 538.582502][T13809] blkdev_ioctl+0x5f8/0xbb8 [ 538.583116][T13809] block_ioctl+0xa4/0x118 [ 538.583722][T13809] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.584467][T13809] invoke_syscall+0x98/0x2b8 [ 538.585112][T13809] el0_svc_common+0x138/0x258 [ 538.585734][T13809] do_el0_svc+0x58/0x14c [ 538.586318][T13809] el0_svc+0x78/0x1e0 [ 538.586850][T13809] el0t_64_sync_handler+0xcc/0xe4 [ 538.587554][T13809] el0t_64_sync+0x1a0/0x1a4 [ 538.588296][T13809] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 538.590718][T13810] block nbd0: shutting down sockets [ 538.749123][T13812] FAULT_INJECTION: forcing a failure. [ 538.749123][T13812] name failslab, interval 1, probability 0, space 0, times 0 [ 538.751006][T13812] CPU: 1 PID: 13812 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.752147][T13812] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.753529][T13812] Call trace: [ 538.754033][T13812] dump_backtrace+0x0/0x43c [ 538.754675][T13812] show_stack+0x2c/0x3c [ 538.755256][T13812] __dump_stack+0x30/0x40 [ 538.755837][T13812] dump_stack_lvl+0xf8/0x160 [ 538.756465][T13812] dump_stack+0x1c/0x5c [ 538.757027][T13812] should_fail+0x3c0/0x51c [ 538.757681][T13812] __should_failslab+0xbc/0x10c [ 538.758371][T13812] should_failslab+0x10/0x28 [ 538.759072][T13812] slab_pre_alloc_hook+0x64/0xec [ 538.759762][T13812] __kmalloc_node+0xb8/0x520 [ 538.760422][T13812] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 538.761260][T13812] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 538.762060][T13812] nbd_start_device+0x14c/0xb40 [ 538.762762][T13812] nbd_ioctl+0x514/0xc50 [ 538.763345][T13812] blkdev_ioctl+0x5f8/0xbb8 [ 538.763989][T13812] block_ioctl+0xa4/0x118 [ 538.764562][T13812] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.765177][T13812] invoke_syscall+0x98/0x2b8 [ 538.765764][T13812] el0_svc_common+0x138/0x258 [ 538.766368][T13812] do_el0_svc+0x58/0x14c [ 538.766975][T13812] el0_svc+0x78/0x1e0 [ 538.767513][T13812] el0t_64_sync_handler+0xcc/0xe4 [ 538.768238][T13812] el0t_64_sync+0x1a0/0x1a4 [ 538.768958][T13812] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 538.771656][T13814] block nbd0: shutting down sockets [ 538.877106][T13817] block nbd0: Device being setup by another task [ 538.878448][T13816] FAULT_INJECTION: forcing a failure. [ 538.878448][T13816] name failslab, interval 1, probability 0, space 0, times 0 [ 538.880314][T13816] CPU: 1 PID: 13816 Comm: syz-executor358 Not tainted syzkaller #0 [ 538.881562][T13816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 538.883087][T13816] Call trace: [ 538.883565][T13816] dump_backtrace+0x0/0x43c [ 538.884199][T13816] show_stack+0x2c/0x3c [ 538.884817][T13816] __dump_stack+0x30/0x40 [ 538.885438][T13816] dump_stack_lvl+0xf8/0x160 [ 538.886103][T13816] dump_stack+0x1c/0x5c [ 538.886718][T13816] should_fail+0x3c0/0x51c [ 538.887313][T13816] __should_failslab+0xbc/0x10c [ 538.887988][T13816] should_failslab+0x10/0x28 [ 538.888676][T13816] slab_pre_alloc_hook+0x64/0xec [ 538.889413][T13816] kmem_cache_alloc+0x94/0x3e4 [ 538.890086][T13816] new_inode_pseudo+0x10c/0x1fc [ 538.890772][T13816] new_inode+0x38/0x174 [ 538.891366][T13816] debugfs_create_dir+0xec/0x3f4 [ 538.892085][T13816] nbd_start_device+0x3c8/0xb40 [ 538.892745][T13816] nbd_ioctl+0x514/0xc50 [ 538.893363][T13816] blkdev_ioctl+0x5f8/0xbb8 [ 538.893924][T13816] block_ioctl+0xa4/0x118 [ 538.894535][T13816] __arm64_sys_ioctl+0x14c/0x1c8 [ 538.895230][T13816] invoke_syscall+0x98/0x2b8 [ 538.895895][T13816] el0_svc_common+0x138/0x258 [ 538.896582][T13816] do_el0_svc+0x58/0x14c [ 538.897200][T13816] el0_svc+0x78/0x1e0 [ 538.897780][T13816] el0t_64_sync_handler+0xcc/0xe4 [ 538.898529][T13816] el0t_64_sync+0x1a0/0x1a4 [ 538.899450][T13816] debugfs: out of free dentries, can not create directory 'nbd0' [ 538.900684][T13816] block nbd0: Failed to create debugfs dir for 'nbd0' [ 538.929194][T13817] block nbd0: shutting down sockets [ 539.079091][T13819] FAULT_INJECTION: forcing a failure. [ 539.079091][T13819] name failslab, interval 1, probability 0, space 0, times 0 [ 539.080981][T13819] CPU: 0 PID: 13819 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.082014][T13819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.083371][T13819] Call trace: [ 539.083802][T13819] dump_backtrace+0x0/0x43c [ 539.084395][T13819] show_stack+0x2c/0x3c [ 539.084964][T13819] __dump_stack+0x30/0x40 [ 539.085559][T13819] dump_stack_lvl+0xf8/0x160 [ 539.086180][T13819] dump_stack+0x1c/0x5c [ 539.086707][T13819] should_fail+0x3c0/0x51c [ 539.087339][T13819] __should_failslab+0xbc/0x10c [ 539.088044][T13819] should_failslab+0x10/0x28 [ 539.088666][T13819] slab_pre_alloc_hook+0x64/0xec [ 539.089343][T13819] __kmalloc_node+0xb8/0x520 [ 539.089951][T13819] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.090688][T13819] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.091423][T13819] nbd_start_device+0x14c/0xb40 [ 539.092049][T13819] nbd_ioctl+0x514/0xc50 [ 539.092632][T13819] blkdev_ioctl+0x5f8/0xbb8 [ 539.093259][T13819] block_ioctl+0xa4/0x118 [ 539.093901][T13819] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.094630][T13819] invoke_syscall+0x98/0x2b8 [ 539.095259][T13819] el0_svc_common+0x138/0x258 [ 539.095916][T13819] do_el0_svc+0x58/0x14c [ 539.096584][T13819] el0_svc+0x78/0x1e0 [ 539.097104][T13819] el0t_64_sync_handler+0xcc/0xe4 [ 539.097838][T13819] el0t_64_sync+0x1a0/0x1a4 [ 539.098722][T13819] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.101736][T13820] block nbd0: shutting down sockets [ 539.239063][T13822] FAULT_INJECTION: forcing a failure. [ 539.239063][T13822] name failslab, interval 1, probability 0, space 0, times 0 [ 539.241029][T13822] CPU: 0 PID: 13822 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.242240][T13822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.243708][T13822] Call trace: [ 539.244216][T13822] dump_backtrace+0x0/0x43c [ 539.244836][T13822] show_stack+0x2c/0x3c [ 539.245422][T13822] __dump_stack+0x30/0x40 [ 539.246017][T13822] dump_stack_lvl+0xf8/0x160 [ 539.246688][T13822] dump_stack+0x1c/0x5c [ 539.247291][T13822] should_fail+0x3c0/0x51c [ 539.247948][T13822] __should_failslab+0xbc/0x10c [ 539.248643][T13822] should_failslab+0x10/0x28 [ 539.249338][T13822] slab_pre_alloc_hook+0x64/0xec [ 539.250009][T13822] __kmalloc_node+0xb8/0x520 [ 539.250628][T13822] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.251433][T13822] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.252223][T13822] nbd_start_device+0x14c/0xb40 [ 539.252872][T13822] nbd_ioctl+0x514/0xc50 [ 539.253542][T13822] blkdev_ioctl+0x5f8/0xbb8 [ 539.254219][T13822] block_ioctl+0xa4/0x118 [ 539.254867][T13822] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.255616][T13822] invoke_syscall+0x98/0x2b8 [ 539.256217][T13822] el0_svc_common+0x138/0x258 [ 539.256855][T13822] do_el0_svc+0x58/0x14c [ 539.257406][T13822] el0_svc+0x78/0x1e0 [ 539.257926][T13822] el0t_64_sync_handler+0xcc/0xe4 [ 539.258551][T13822] el0t_64_sync+0x1a0/0x1a4 [ 539.259287][T13822] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.262232][T13823] block nbd0: shutting down sockets [ 539.399117][T13825] FAULT_INJECTION: forcing a failure. [ 539.399117][T13825] name failslab, interval 1, probability 0, space 0, times 0 [ 539.401020][T13825] CPU: 0 PID: 13825 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.402087][T13825] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.403565][T13825] Call trace: [ 539.404041][T13825] dump_backtrace+0x0/0x43c [ 539.404726][T13825] show_stack+0x2c/0x3c [ 539.405342][T13825] __dump_stack+0x30/0x40 [ 539.405990][T13825] dump_stack_lvl+0xf8/0x160 [ 539.406707][T13825] dump_stack+0x1c/0x5c [ 539.407324][T13825] should_fail+0x3c0/0x51c [ 539.407992][T13825] __should_failslab+0xbc/0x10c [ 539.408664][T13825] should_failslab+0x10/0x28 [ 539.409316][T13825] slab_pre_alloc_hook+0x64/0xec [ 539.410095][T13825] __kmalloc_node+0xb8/0x520 [ 539.410756][T13825] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.411530][T13825] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.412369][T13825] nbd_start_device+0x14c/0xb40 [ 539.412996][T13825] nbd_ioctl+0x514/0xc50 [ 539.413587][T13825] blkdev_ioctl+0x5f8/0xbb8 [ 539.414217][T13825] block_ioctl+0xa4/0x118 [ 539.414779][T13825] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.415469][T13825] invoke_syscall+0x98/0x2b8 [ 539.416176][T13825] el0_svc_common+0x138/0x258 [ 539.416874][T13825] do_el0_svc+0x58/0x14c [ 539.417521][T13825] el0_svc+0x78/0x1e0 [ 539.418103][T13825] el0t_64_sync_handler+0xcc/0xe4 [ 539.418826][T13825] el0t_64_sync+0x1a0/0x1a4 [ 539.419580][T13825] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.421972][T13826] block nbd0: shutting down sockets [ 539.559111][T13828] FAULT_INJECTION: forcing a failure. [ 539.559111][T13828] name failslab, interval 1, probability 0, space 0, times 0 [ 539.561020][T13828] CPU: 0 PID: 13828 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.562084][T13828] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.563445][T13828] Call trace: [ 539.563913][T13828] dump_backtrace+0x0/0x43c [ 539.564574][T13828] show_stack+0x2c/0x3c [ 539.565165][T13828] __dump_stack+0x30/0x40 [ 539.565766][T13828] dump_stack_lvl+0xf8/0x160 [ 539.566408][T13828] dump_stack+0x1c/0x5c [ 539.566976][T13828] should_fail+0x3c0/0x51c [ 539.567674][T13828] __should_failslab+0xbc/0x10c [ 539.568394][T13828] should_failslab+0x10/0x28 [ 539.569066][T13828] slab_pre_alloc_hook+0x64/0xec [ 539.569786][T13828] __kmalloc_node+0xb8/0x520 [ 539.570453][T13828] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.571207][T13828] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.572034][T13828] nbd_start_device+0x14c/0xb40 [ 539.572736][T13828] nbd_ioctl+0x514/0xc50 [ 539.573353][T13828] blkdev_ioctl+0x5f8/0xbb8 [ 539.573981][T13828] block_ioctl+0xa4/0x118 [ 539.574615][T13828] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.575314][T13828] invoke_syscall+0x98/0x2b8 [ 539.576001][T13828] el0_svc_common+0x138/0x258 [ 539.576640][T13828] do_el0_svc+0x58/0x14c [ 539.577209][T13828] el0_svc+0x78/0x1e0 [ 539.577793][T13828] el0t_64_sync_handler+0xcc/0xe4 [ 539.578466][T13828] el0t_64_sync+0x1a0/0x1a4 [ 539.579255][T13828] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.581736][T13829] block nbd0: shutting down sockets [ 539.719435][T13831] FAULT_INJECTION: forcing a failure. [ 539.719435][T13831] name failslab, interval 1, probability 0, space 0, times 0 [ 539.721439][T13831] CPU: 1 PID: 13831 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.722649][T13831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.724085][T13831] Call trace: [ 539.724580][T13831] dump_backtrace+0x0/0x43c [ 539.725330][T13831] show_stack+0x2c/0x3c [ 539.726064][T13831] __dump_stack+0x30/0x40 [ 539.726749][T13831] dump_stack_lvl+0xf8/0x160 [ 539.727513][T13831] dump_stack+0x1c/0x5c [ 539.728223][T13831] should_fail+0x3c0/0x51c [ 539.728844][T13831] __should_failslab+0xbc/0x10c [ 539.729563][T13831] should_failslab+0x10/0x28 [ 539.730244][T13831] slab_pre_alloc_hook+0x64/0xec [ 539.730946][T13831] __kmalloc_node+0xb8/0x520 [ 539.731642][T13831] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.732406][T13831] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.733174][T13831] nbd_start_device+0x14c/0xb40 [ 539.733855][T13831] nbd_ioctl+0x514/0xc50 [ 539.734415][T13831] blkdev_ioctl+0x5f8/0xbb8 [ 539.735047][T13831] block_ioctl+0xa4/0x118 [ 539.735598][T13831] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.736244][T13831] invoke_syscall+0x98/0x2b8 [ 539.736891][T13831] el0_svc_common+0x138/0x258 [ 539.737518][T13831] do_el0_svc+0x58/0x14c [ 539.738078][T13831] el0_svc+0x78/0x1e0 [ 539.738624][T13831] el0t_64_sync_handler+0xcc/0xe4 [ 539.739333][T13831] el0t_64_sync+0x1a0/0x1a4 [ 539.739993][T13831] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.742809][T13832] block nbd0: shutting down sockets [ 539.869054][T13834] FAULT_INJECTION: forcing a failure. [ 539.869054][T13834] name failslab, interval 1, probability 0, space 0, times 0 [ 539.870921][T13834] CPU: 1 PID: 13834 Comm: syz-executor358 Not tainted syzkaller #0 [ 539.872063][T13834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 539.873486][T13834] Call trace: [ 539.873935][T13834] dump_backtrace+0x0/0x43c [ 539.874621][T13834] show_stack+0x2c/0x3c [ 539.875263][T13834] __dump_stack+0x30/0x40 [ 539.875862][T13834] dump_stack_lvl+0xf8/0x160 [ 539.876553][T13834] dump_stack+0x1c/0x5c [ 539.877113][T13834] should_fail+0x3c0/0x51c [ 539.877764][T13834] __should_failslab+0xbc/0x10c [ 539.878515][T13834] should_failslab+0x10/0x28 [ 539.879147][T13834] slab_pre_alloc_hook+0x64/0xec [ 539.879898][T13834] __kmalloc_node+0xb8/0x520 [ 539.880642][T13834] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 539.881486][T13834] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 539.882305][T13834] nbd_start_device+0x14c/0xb40 [ 539.883069][T13834] nbd_ioctl+0x514/0xc50 [ 539.883735][T13834] blkdev_ioctl+0x5f8/0xbb8 [ 539.884413][T13834] block_ioctl+0xa4/0x118 [ 539.885074][T13834] __arm64_sys_ioctl+0x14c/0x1c8 [ 539.885785][T13834] invoke_syscall+0x98/0x2b8 [ 539.886445][T13834] el0_svc_common+0x138/0x258 [ 539.887176][T13834] do_el0_svc+0x58/0x14c [ 539.887776][T13834] el0_svc+0x78/0x1e0 [ 539.888374][T13834] el0t_64_sync_handler+0xcc/0xe4 [ 539.889073][T13834] el0t_64_sync+0x1a0/0x1a4 [ 539.890162][T13834] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 539.893055][T13835] block nbd0: shutting down sockets [ 540.039067][T13837] FAULT_INJECTION: forcing a failure. [ 540.039067][T13837] name failslab, interval 1, probability 0, space 0, times 0 [ 540.040969][T13837] CPU: 0 PID: 13837 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.042111][T13837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.043590][T13837] Call trace: [ 540.044062][T13837] dump_backtrace+0x0/0x43c [ 540.044710][T13837] show_stack+0x2c/0x3c [ 540.045314][T13837] __dump_stack+0x30/0x40 [ 540.045936][T13837] dump_stack_lvl+0xf8/0x160 [ 540.046597][T13837] dump_stack+0x1c/0x5c [ 540.047199][T13837] should_fail+0x3c0/0x51c [ 540.047861][T13837] __should_failslab+0xbc/0x10c [ 540.048620][T13837] should_failslab+0x10/0x28 [ 540.049310][T13837] slab_pre_alloc_hook+0x64/0xec [ 540.050028][T13837] __kmalloc_node+0xb8/0x520 [ 540.050672][T13837] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.051418][T13837] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.052223][T13837] nbd_start_device+0x14c/0xb40 [ 540.052930][T13837] nbd_ioctl+0x514/0xc50 [ 540.053525][T13837] blkdev_ioctl+0x5f8/0xbb8 [ 540.054121][T13837] block_ioctl+0xa4/0x118 [ 540.054732][T13837] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.055413][T13837] invoke_syscall+0x98/0x2b8 [ 540.056050][T13837] el0_svc_common+0x138/0x258 [ 540.056711][T13837] do_el0_svc+0x58/0x14c [ 540.057284][T13837] el0_svc+0x78/0x1e0 [ 540.057852][T13837] el0t_64_sync_handler+0xcc/0xe4 [ 540.058554][T13837] el0t_64_sync+0x1a0/0x1a4 [ 540.059663][T13837] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.062263][T13838] block nbd0: shutting down sockets [ 540.209111][T13840] FAULT_INJECTION: forcing a failure. [ 540.209111][T13840] name failslab, interval 1, probability 0, space 0, times 0 [ 540.210935][T13840] CPU: 1 PID: 13840 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.212013][T13840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.213365][T13840] Call trace: [ 540.213879][T13840] dump_backtrace+0x0/0x43c [ 540.214532][T13840] show_stack+0x2c/0x3c [ 540.215146][T13840] __dump_stack+0x30/0x40 [ 540.215713][T13840] dump_stack_lvl+0xf8/0x160 [ 540.216346][T13840] dump_stack+0x1c/0x5c [ 540.216908][T13840] should_fail+0x3c0/0x51c [ 540.217532][T13840] __should_failslab+0xbc/0x10c [ 540.218192][T13840] should_failslab+0x10/0x28 [ 540.218848][T13840] slab_pre_alloc_hook+0x64/0xec [ 540.219551][T13840] __kmalloc_node+0xb8/0x520 [ 540.220189][T13840] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.220923][T13840] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.221716][T13840] nbd_start_device+0x14c/0xb40 [ 540.222386][T13840] nbd_ioctl+0x514/0xc50 [ 540.222943][T13840] blkdev_ioctl+0x5f8/0xbb8 [ 540.223571][T13840] block_ioctl+0xa4/0x118 [ 540.224164][T13840] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.224859][T13840] invoke_syscall+0x98/0x2b8 [ 540.225515][T13840] el0_svc_common+0x138/0x258 [ 540.226136][T13840] do_el0_svc+0x58/0x14c [ 540.226725][T13840] el0_svc+0x78/0x1e0 [ 540.227305][T13840] el0t_64_sync_handler+0xcc/0xe4 [ 540.227981][T13840] el0t_64_sync+0x1a0/0x1a4 [ 540.228710][T13840] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.231106][T13841] block nbd0: shutting down sockets [ 540.359085][T13843] FAULT_INJECTION: forcing a failure. [ 540.359085][T13843] name failslab, interval 1, probability 0, space 0, times 0 [ 540.360890][T13843] CPU: 0 PID: 13843 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.362060][T13843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.363469][T13843] Call trace: [ 540.363861][T13843] dump_backtrace+0x0/0x43c [ 540.364457][T13843] show_stack+0x2c/0x3c [ 540.365029][T13843] __dump_stack+0x30/0x40 [ 540.365620][T13843] dump_stack_lvl+0xf8/0x160 [ 540.366306][T13843] dump_stack+0x1c/0x5c [ 540.366917][T13843] should_fail+0x3c0/0x51c [ 540.367583][T13843] __should_failslab+0xbc/0x10c [ 540.368276][T13843] should_failslab+0x10/0x28 [ 540.368966][T13843] slab_pre_alloc_hook+0x64/0xec [ 540.369721][T13843] __kmalloc_node+0xb8/0x520 [ 540.370407][T13843] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.371207][T13843] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.372024][T13843] nbd_start_device+0x14c/0xb40 [ 540.372705][T13843] nbd_ioctl+0x514/0xc50 [ 540.373334][T13843] blkdev_ioctl+0x5f8/0xbb8 [ 540.374022][T13843] block_ioctl+0xa4/0x118 [ 540.374635][T13843] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.375318][T13843] invoke_syscall+0x98/0x2b8 [ 540.375958][T13843] el0_svc_common+0x138/0x258 [ 540.376646][T13843] do_el0_svc+0x58/0x14c [ 540.377218][T13843] el0_svc+0x78/0x1e0 [ 540.377806][T13843] el0t_64_sync_handler+0xcc/0xe4 [ 540.378549][T13843] el0t_64_sync+0x1a0/0x1a4 [ 540.379336][T13843] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.381830][T13844] block nbd0: shutting down sockets [ 540.509114][T13846] FAULT_INJECTION: forcing a failure. [ 540.509114][T13846] name failslab, interval 1, probability 0, space 0, times 0 [ 540.511007][T13846] CPU: 1 PID: 13846 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.512145][T13846] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.513503][T13846] Call trace: [ 540.513927][T13846] dump_backtrace+0x0/0x43c [ 540.514522][T13846] show_stack+0x2c/0x3c [ 540.515094][T13846] __dump_stack+0x30/0x40 [ 540.515667][T13846] dump_stack_lvl+0xf8/0x160 [ 540.516343][T13846] dump_stack+0x1c/0x5c [ 540.516927][T13846] should_fail+0x3c0/0x51c [ 540.517522][T13846] __should_failslab+0xbc/0x10c [ 540.518194][T13846] should_failslab+0x10/0x28 [ 540.518844][T13846] slab_pre_alloc_hook+0x64/0xec [ 540.519567][T13846] __kmalloc_node+0xb8/0x520 [ 540.520238][T13846] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.520992][T13846] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.521772][T13846] nbd_start_device+0x14c/0xb40 [ 540.522513][T13846] nbd_ioctl+0x514/0xc50 [ 540.523137][T13846] blkdev_ioctl+0x5f8/0xbb8 [ 540.523795][T13846] block_ioctl+0xa4/0x118 [ 540.524438][T13846] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.525165][T13846] invoke_syscall+0x98/0x2b8 [ 540.525829][T13846] el0_svc_common+0x138/0x258 [ 540.526524][T13846] do_el0_svc+0x58/0x14c [ 540.527159][T13846] el0_svc+0x78/0x1e0 [ 540.527696][T13846] el0t_64_sync_handler+0xcc/0xe4 [ 540.528349][T13846] el0t_64_sync+0x1a0/0x1a4 [ 540.529426][T13846] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.532394][T13847] block nbd0: shutting down sockets [ 540.649088][T13849] FAULT_INJECTION: forcing a failure. [ 540.649088][T13849] name failslab, interval 1, probability 0, space 0, times 0 [ 540.650938][T13849] CPU: 1 PID: 13849 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.652033][T13849] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.653402][T13849] Call trace: [ 540.653837][T13849] dump_backtrace+0x0/0x43c [ 540.654440][T13849] show_stack+0x2c/0x3c [ 540.655037][T13849] __dump_stack+0x30/0x40 [ 540.655615][T13849] dump_stack_lvl+0xf8/0x160 [ 540.656254][T13849] dump_stack+0x1c/0x5c [ 540.656858][T13849] should_fail+0x3c0/0x51c [ 540.657487][T13849] __should_failslab+0xbc/0x10c [ 540.658143][T13849] should_failslab+0x10/0x28 [ 540.658794][T13849] slab_pre_alloc_hook+0x64/0xec [ 540.659475][T13849] __kmalloc_node+0xb8/0x520 [ 540.660124][T13849] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.660872][T13849] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.661645][T13849] nbd_start_device+0x14c/0xb40 [ 540.662285][T13849] nbd_ioctl+0x514/0xc50 [ 540.662869][T13849] blkdev_ioctl+0x5f8/0xbb8 [ 540.663483][T13849] block_ioctl+0xa4/0x118 [ 540.664070][T13849] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.664769][T13849] invoke_syscall+0x98/0x2b8 [ 540.665383][T13849] el0_svc_common+0x138/0x258 [ 540.666025][T13849] do_el0_svc+0x58/0x14c [ 540.666604][T13849] el0_svc+0x78/0x1e0 [ 540.667222][T13849] el0t_64_sync_handler+0xcc/0xe4 [ 540.667914][T13849] el0t_64_sync+0x1a0/0x1a4 [ 540.668677][T13849] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.671049][T13850] block nbd0: shutting down sockets [ 540.819079][T13852] FAULT_INJECTION: forcing a failure. [ 540.819079][T13852] name failslab, interval 1, probability 0, space 0, times 0 [ 540.821110][T13852] CPU: 0 PID: 13852 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.822341][T13852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.823786][T13852] Call trace: [ 540.824214][T13852] dump_backtrace+0x0/0x43c [ 540.824820][T13852] show_stack+0x2c/0x3c [ 540.825391][T13852] __dump_stack+0x30/0x40 [ 540.826005][T13852] dump_stack_lvl+0xf8/0x160 [ 540.826603][T13852] dump_stack+0x1c/0x5c [ 540.827188][T13852] should_fail+0x3c0/0x51c [ 540.827807][T13852] __should_failslab+0xbc/0x10c [ 540.828453][T13852] should_failslab+0x10/0x28 [ 540.829105][T13852] slab_pre_alloc_hook+0x64/0xec [ 540.829783][T13852] __kmalloc_node+0xb8/0x520 [ 540.830428][T13852] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.831183][T13852] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.832001][T13852] nbd_start_device+0x14c/0xb40 [ 540.832672][T13852] nbd_ioctl+0x514/0xc50 [ 540.833256][T13852] blkdev_ioctl+0x5f8/0xbb8 [ 540.833882][T13852] block_ioctl+0xa4/0x118 [ 540.834427][T13852] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.835095][T13852] invoke_syscall+0x98/0x2b8 [ 540.835749][T13852] el0_svc_common+0x138/0x258 [ 540.836416][T13852] do_el0_svc+0x58/0x14c [ 540.837026][T13852] el0_svc+0x78/0x1e0 [ 540.837561][T13852] el0t_64_sync_handler+0xcc/0xe4 [ 540.838269][T13852] el0t_64_sync+0x1a0/0x1a4 [ 540.839015][T13852] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.841587][T13853] block nbd0: shutting down sockets [ 540.969160][T13855] FAULT_INJECTION: forcing a failure. [ 540.969160][T13855] name failslab, interval 1, probability 0, space 0, times 0 [ 540.971364][T13855] CPU: 1 PID: 13855 Comm: syz-executor358 Not tainted syzkaller #0 [ 540.972568][T13855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 540.974197][T13855] Call trace: [ 540.974711][T13855] dump_backtrace+0x0/0x43c [ 540.975431][T13855] show_stack+0x2c/0x3c [ 540.976043][T13855] __dump_stack+0x30/0x40 [ 540.976627][T13855] dump_stack_lvl+0xf8/0x160 [ 540.977319][T13855] dump_stack+0x1c/0x5c [ 540.977913][T13855] should_fail+0x3c0/0x51c [ 540.978580][T13855] __should_failslab+0xbc/0x10c [ 540.979361][T13855] should_failslab+0x10/0x28 [ 540.980056][T13855] slab_pre_alloc_hook+0x64/0xec [ 540.980768][T13855] __kmalloc_node+0xb8/0x520 [ 540.981467][T13855] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 540.982212][T13855] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 540.983052][T13855] nbd_start_device+0x14c/0xb40 [ 540.983788][T13855] nbd_ioctl+0x514/0xc50 [ 540.984400][T13855] blkdev_ioctl+0x5f8/0xbb8 [ 540.985082][T13855] block_ioctl+0xa4/0x118 [ 540.985810][T13855] __arm64_sys_ioctl+0x14c/0x1c8 [ 540.986598][T13855] invoke_syscall+0x98/0x2b8 [ 540.987267][T13855] el0_svc_common+0x138/0x258 [ 540.987954][T13855] do_el0_svc+0x58/0x14c [ 540.988554][T13855] el0_svc+0x78/0x1e0 [ 540.989123][T13855] el0t_64_sync_handler+0xcc/0xe4 [ 540.989866][T13855] el0t_64_sync+0x1a0/0x1a4 [ 540.991463][T13855] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 540.994286][T13856] block nbd0: shutting down sockets [ 541.117121][T13859] block nbd0: Device being setup by another task [ 541.118101][T13858] FAULT_INJECTION: forcing a failure. [ 541.118101][T13858] name failslab, interval 1, probability 0, space 0, times 0 [ 541.120101][T13858] CPU: 0 PID: 13858 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.121249][T13858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.122681][T13858] Call trace: [ 541.123115][T13858] dump_backtrace+0x0/0x43c [ 541.123759][T13858] show_stack+0x2c/0x3c [ 541.124371][T13858] __dump_stack+0x30/0x40 [ 541.124978][T13858] dump_stack_lvl+0xf8/0x160 [ 541.125596][T13858] dump_stack+0x1c/0x5c [ 541.126162][T13858] should_fail+0x3c0/0x51c [ 541.126835][T13858] __should_failslab+0xbc/0x10c [ 541.127500][T13858] should_failslab+0x10/0x28 [ 541.128165][T13858] slab_pre_alloc_hook+0x64/0xec [ 541.128870][T13858] kmem_cache_alloc+0x94/0x3e4 [ 541.129594][T13858] new_inode_pseudo+0x10c/0x1fc [ 541.130299][T13858] new_inode+0x38/0x174 [ 541.130894][T13858] debugfs_create_dir+0xec/0x3f4 [ 541.131592][T13858] nbd_start_device+0x3c8/0xb40 [ 541.132225][T13858] nbd_ioctl+0x514/0xc50 [ 541.132871][T13858] blkdev_ioctl+0x5f8/0xbb8 [ 541.133513][T13858] block_ioctl+0xa4/0x118 [ 541.134123][T13858] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.134912][T13858] invoke_syscall+0x98/0x2b8 [ 541.135531][T13858] el0_svc_common+0x138/0x258 [ 541.136177][T13858] do_el0_svc+0x58/0x14c [ 541.136842][T13858] el0_svc+0x78/0x1e0 [ 541.137470][T13858] el0t_64_sync_handler+0xcc/0xe4 [ 541.138211][T13858] el0t_64_sync+0x1a0/0x1a4 [ 541.138970][T13858] debugfs: out of free dentries, can not create directory 'nbd0' [ 541.140160][T13858] block nbd0: Failed to create debugfs dir for 'nbd0' [ 541.156177][T13859] block nbd0: shutting down sockets [ 541.279067][T13861] FAULT_INJECTION: forcing a failure. [ 541.279067][T13861] name failslab, interval 1, probability 0, space 0, times 0 [ 541.281066][T13861] CPU: 0 PID: 13861 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.282229][T13861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.283618][T13861] Call trace: [ 541.284044][T13861] dump_backtrace+0x0/0x43c [ 541.284691][T13861] show_stack+0x2c/0x3c [ 541.285272][T13861] __dump_stack+0x30/0x40 [ 541.285843][T13861] dump_stack_lvl+0xf8/0x160 [ 541.286452][T13861] dump_stack+0x1c/0x5c [ 541.286984][T13861] should_fail+0x3c0/0x51c [ 541.287652][T13861] __should_failslab+0xbc/0x10c [ 541.288295][T13861] should_failslab+0x10/0x28 [ 541.288960][T13861] slab_pre_alloc_hook+0x64/0xec [ 541.289656][T13861] __kmalloc_node+0xb8/0x520 [ 541.290283][T13861] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 541.291053][T13861] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 541.291874][T13861] nbd_start_device+0x14c/0xb40 [ 541.292575][T13861] nbd_ioctl+0x514/0xc50 [ 541.293223][T13861] blkdev_ioctl+0x5f8/0xbb8 [ 541.293887][T13861] block_ioctl+0xa4/0x118 [ 541.294658][T13861] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.295376][T13861] invoke_syscall+0x98/0x2b8 [ 541.296045][T13861] el0_svc_common+0x138/0x258 [ 541.296770][T13861] do_el0_svc+0x58/0x14c [ 541.297421][T13861] el0_svc+0x78/0x1e0 [ 541.297962][T13861] el0t_64_sync_handler+0xcc/0xe4 [ 541.298707][T13861] el0t_64_sync+0x1a0/0x1a4 [ 541.299767][T13861] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 541.302184][T13862] block nbd0: shutting down sockets [ 541.429570][T13864] FAULT_INJECTION: forcing a failure. [ 541.429570][T13864] name failslab, interval 1, probability 0, space 0, times 0 [ 541.431351][T13864] CPU: 1 PID: 13864 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.432489][T13864] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.433824][T13864] Call trace: [ 541.434271][T13864] dump_backtrace+0x0/0x43c [ 541.434928][T13864] show_stack+0x2c/0x3c [ 541.435500][T13864] __dump_stack+0x30/0x40 [ 541.436177][T13864] dump_stack_lvl+0xf8/0x160 [ 541.436834][T13864] dump_stack+0x1c/0x5c [ 541.437460][T13864] should_fail+0x3c0/0x51c [ 541.438108][T13864] __should_failslab+0xbc/0x10c [ 541.438848][T13864] should_failslab+0x10/0x28 [ 541.439526][T13864] slab_pre_alloc_hook+0x64/0xec [ 541.440247][T13864] __kmalloc_node+0xb8/0x520 [ 541.440891][T13864] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 541.441736][T13864] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 541.442593][T13864] nbd_start_device+0x14c/0xb40 [ 541.443253][T13864] nbd_ioctl+0x514/0xc50 [ 541.443868][T13864] blkdev_ioctl+0x5f8/0xbb8 [ 541.444493][T13864] block_ioctl+0xa4/0x118 [ 541.445118][T13864] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.445848][T13864] invoke_syscall+0x98/0x2b8 [ 541.446510][T13864] el0_svc_common+0x138/0x258 [ 541.447191][T13864] do_el0_svc+0x58/0x14c [ 541.447822][T13864] el0_svc+0x78/0x1e0 [ 541.448362][T13864] el0t_64_sync_handler+0xcc/0xe4 [ 541.449060][T13864] el0t_64_sync+0x1a0/0x1a4 [ 541.449861][T13864] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 541.452198][T13865] block nbd0: shutting down sockets [ 541.589058][T13867] FAULT_INJECTION: forcing a failure. [ 541.589058][T13867] name failslab, interval 1, probability 0, space 0, times 0 [ 541.590828][T13867] CPU: 0 PID: 13867 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.592007][T13867] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.593489][T13867] Call trace: [ 541.593964][T13867] dump_backtrace+0x0/0x43c [ 541.594595][T13867] show_stack+0x2c/0x3c [ 541.595211][T13867] __dump_stack+0x30/0x40 [ 541.595843][T13867] dump_stack_lvl+0xf8/0x160 [ 541.596548][T13867] dump_stack+0x1c/0x5c [ 541.597178][T13867] should_fail+0x3c0/0x51c [ 541.597827][T13867] __should_failslab+0xbc/0x10c [ 541.598589][T13867] should_failslab+0x10/0x28 [ 541.599262][T13867] slab_pre_alloc_hook+0x64/0xec [ 541.599994][T13867] __kmalloc_node+0xb8/0x520 [ 541.600664][T13867] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 541.601473][T13867] nbd_start_device+0x14c/0xb40 [ 541.602160][T13867] nbd_ioctl+0x514/0xc50 [ 541.602793][T13867] blkdev_ioctl+0x5f8/0xbb8 [ 541.603426][T13867] block_ioctl+0xa4/0x118 [ 541.604009][T13867] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.604711][T13867] invoke_syscall+0x98/0x2b8 [ 541.605369][T13867] el0_svc_common+0x138/0x258 [ 541.606027][T13867] do_el0_svc+0x58/0x14c [ 541.606627][T13867] el0_svc+0x78/0x1e0 [ 541.607154][T13867] el0t_64_sync_handler+0xcc/0xe4 [ 541.607876][T13867] el0t_64_sync+0x1a0/0x1a4 [ 541.610546][T13868] block nbd0: shutting down sockets [ 541.759036][T13870] FAULT_INJECTION: forcing a failure. [ 541.759036][T13870] name failslab, interval 1, probability 0, space 0, times 0 [ 541.760891][T13870] CPU: 0 PID: 13870 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.761981][T13870] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.763472][T13870] Call trace: [ 541.763943][T13870] dump_backtrace+0x0/0x43c [ 541.764570][T13870] show_stack+0x2c/0x3c [ 541.765110][T13870] __dump_stack+0x30/0x40 [ 541.765723][T13870] dump_stack_lvl+0xf8/0x160 [ 541.766415][T13870] dump_stack+0x1c/0x5c [ 541.766988][T13870] should_fail+0x3c0/0x51c [ 541.767622][T13870] __should_failslab+0xbc/0x10c [ 541.768290][T13870] should_failslab+0x10/0x28 [ 541.768936][T13870] slab_pre_alloc_hook+0x64/0xec [ 541.769656][T13870] __kmalloc_node+0xb8/0x520 [ 541.770367][T13870] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 541.771178][T13870] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 541.771931][T13870] nbd_start_device+0x14c/0xb40 [ 541.772638][T13870] nbd_ioctl+0x514/0xc50 [ 541.773274][T13870] blkdev_ioctl+0x5f8/0xbb8 [ 541.773935][T13870] block_ioctl+0xa4/0x118 [ 541.774569][T13870] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.775285][T13870] invoke_syscall+0x98/0x2b8 [ 541.776009][T13870] el0_svc_common+0x138/0x258 [ 541.776671][T13870] do_el0_svc+0x58/0x14c [ 541.777297][T13870] el0_svc+0x78/0x1e0 [ 541.777865][T13870] el0t_64_sync_handler+0xcc/0xe4 [ 541.778578][T13870] el0t_64_sync+0x1a0/0x1a4 [ 541.779309][T13870] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 541.782151][T13871] block nbd0: shutting down sockets [ 541.959117][T13874] FAULT_INJECTION: forcing a failure. [ 541.959117][T13874] name failslab, interval 1, probability 0, space 0, times 0 [ 541.960909][T13874] CPU: 1 PID: 13874 Comm: syz-executor358 Not tainted syzkaller #0 [ 541.962081][T13874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 541.963529][T13874] Call trace: [ 541.963950][T13874] dump_backtrace+0x0/0x43c [ 541.964570][T13874] show_stack+0x2c/0x3c [ 541.965167][T13874] __dump_stack+0x30/0x40 [ 541.965805][T13874] dump_stack_lvl+0xf8/0x160 [ 541.966394][T13874] dump_stack+0x1c/0x5c [ 541.967031][T13874] should_fail+0x3c0/0x51c [ 541.967672][T13874] __should_failslab+0xbc/0x10c [ 541.968344][T13874] should_failslab+0x10/0x28 [ 541.969072][T13874] slab_pre_alloc_hook+0x64/0xec [ 541.969821][T13874] __kmalloc_node+0xb8/0x520 [ 541.970445][T13874] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 541.971190][T13874] nbd_start_device+0x14c/0xb40 [ 541.971835][T13874] nbd_ioctl+0x514/0xc50 [ 541.972419][T13874] blkdev_ioctl+0x5f8/0xbb8 [ 541.973090][T13874] block_ioctl+0xa4/0x118 [ 541.973687][T13874] __arm64_sys_ioctl+0x14c/0x1c8 [ 541.974432][T13874] invoke_syscall+0x98/0x2b8 [ 541.975082][T13874] el0_svc_common+0x138/0x258 [ 541.975735][T13874] do_el0_svc+0x58/0x14c [ 541.976381][T13874] el0_svc+0x78/0x1e0 [ 541.976896][T13874] el0t_64_sync_handler+0xcc/0xe4 [ 541.977670][T13874] el0t_64_sync+0x1a0/0x1a4 [ 541.980282][T13873] block nbd0: shutting down sockets [ 542.087197][T13877] block nbd0: Device being setup by another task [ 542.088576][T13876] FAULT_INJECTION: forcing a failure. [ 542.088576][T13876] name failslab, interval 1, probability 0, space 0, times 0 [ 542.090384][T13876] CPU: 1 PID: 13876 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.091520][T13876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.092889][T13876] Call trace: [ 542.093314][T13876] dump_backtrace+0x0/0x43c [ 542.093983][T13876] show_stack+0x2c/0x3c [ 542.094587][T13876] __dump_stack+0x30/0x40 [ 542.095208][T13876] dump_stack_lvl+0xf8/0x160 [ 542.095913][T13876] dump_stack+0x1c/0x5c [ 542.096492][T13876] should_fail+0x3c0/0x51c [ 542.097157][T13876] __should_failslab+0xbc/0x10c [ 542.097811][T13876] should_failslab+0x10/0x28 [ 542.098487][T13876] slab_pre_alloc_hook+0x64/0xec [ 542.099196][T13876] kmem_cache_alloc+0x94/0x3e4 [ 542.099902][T13876] new_inode_pseudo+0x10c/0x1fc [ 542.100637][T13876] new_inode+0x38/0x174 [ 542.101228][T13876] debugfs_create_dir+0xec/0x3f4 [ 542.101900][T13876] nbd_start_device+0x3c8/0xb40 [ 542.102591][T13876] nbd_ioctl+0x514/0xc50 [ 542.103171][T13876] blkdev_ioctl+0x5f8/0xbb8 [ 542.103825][T13876] block_ioctl+0xa4/0x118 [ 542.104441][T13876] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.105115][T13876] invoke_syscall+0x98/0x2b8 [ 542.105751][T13876] el0_svc_common+0x138/0x258 [ 542.106489][T13876] do_el0_svc+0x58/0x14c [ 542.107076][T13876] el0_svc+0x78/0x1e0 [ 542.107669][T13876] el0t_64_sync_handler+0xcc/0xe4 [ 542.108388][T13876] el0t_64_sync+0x1a0/0x1a4 [ 542.109056][T13876] debugfs: out of free dentries, can not create directory 'nbd0' [ 542.110103][T13876] block nbd0: Failed to create debugfs dir for 'nbd0' [ 542.139218][T13877] block nbd0: shutting down sockets [ 542.247091][T13880] block nbd0: Device being setup by another task [ 542.248475][T13879] FAULT_INJECTION: forcing a failure. [ 542.248475][T13879] name failslab, interval 1, probability 0, space 0, times 0 [ 542.250222][T13879] CPU: 1 PID: 13879 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.251281][T13879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.252655][T13879] Call trace: [ 542.253126][T13879] dump_backtrace+0x0/0x43c [ 542.253742][T13879] show_stack+0x2c/0x3c [ 542.254332][T13879] __dump_stack+0x30/0x40 [ 542.254960][T13879] dump_stack_lvl+0xf8/0x160 [ 542.255604][T13879] dump_stack+0x1c/0x5c [ 542.256146][T13879] should_fail+0x3c0/0x51c [ 542.256767][T13879] __should_failslab+0xbc/0x10c [ 542.257417][T13879] should_failslab+0x10/0x28 [ 542.258075][T13879] slab_pre_alloc_hook+0x64/0xec [ 542.258757][T13879] kmem_cache_alloc+0x94/0x3e4 [ 542.259382][T13879] new_inode_pseudo+0x10c/0x1fc [ 542.260105][T13879] new_inode+0x38/0x174 [ 542.260687][T13879] debugfs_create_dir+0xec/0x3f4 [ 542.261418][T13879] nbd_start_device+0x3c8/0xb40 [ 542.262090][T13879] nbd_ioctl+0x514/0xc50 [ 542.262681][T13879] blkdev_ioctl+0x5f8/0xbb8 [ 542.263361][T13879] block_ioctl+0xa4/0x118 [ 542.264009][T13879] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.264715][T13879] invoke_syscall+0x98/0x2b8 [ 542.265449][T13879] el0_svc_common+0x138/0x258 [ 542.266106][T13879] do_el0_svc+0x58/0x14c [ 542.266698][T13879] el0_svc+0x78/0x1e0 [ 542.267236][T13879] el0t_64_sync_handler+0xcc/0xe4 [ 542.267915][T13879] el0t_64_sync+0x1a0/0x1a4 [ 542.268644][T13879] debugfs: out of free dentries, can not create directory 'nbd0' [ 542.269689][T13879] block nbd0: Failed to create debugfs dir for 'nbd0' [ 542.299808][T13880] block nbd0: shutting down sockets [ 542.449100][T13883] FAULT_INJECTION: forcing a failure. [ 542.449100][T13883] name failslab, interval 1, probability 0, space 0, times 0 [ 542.450870][T13883] CPU: 1 PID: 13883 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.452011][T13883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.453427][T13883] Call trace: [ 542.453889][T13883] dump_backtrace+0x0/0x43c [ 542.454577][T13883] show_stack+0x2c/0x3c [ 542.455158][T13883] __dump_stack+0x30/0x40 [ 542.455789][T13883] dump_stack_lvl+0xf8/0x160 [ 542.456470][T13883] dump_stack+0x1c/0x5c [ 542.457005][T13883] should_fail+0x3c0/0x51c [ 542.457615][T13883] __should_failslab+0xbc/0x10c [ 542.458307][T13883] should_failslab+0x10/0x28 [ 542.458929][T13883] slab_pre_alloc_hook+0x64/0xec [ 542.459635][T13883] __kmalloc_node+0xb8/0x520 [ 542.460280][T13883] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 542.461036][T13883] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 542.461825][T13883] nbd_start_device+0x14c/0xb40 [ 542.462492][T13883] nbd_ioctl+0x514/0xc50 [ 542.463050][T13883] blkdev_ioctl+0x5f8/0xbb8 [ 542.463657][T13883] block_ioctl+0xa4/0x118 [ 542.464224][T13883] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.464894][T13883] invoke_syscall+0x98/0x2b8 [ 542.465531][T13883] el0_svc_common+0x138/0x258 [ 542.466155][T13883] do_el0_svc+0x58/0x14c [ 542.466788][T13883] el0_svc+0x78/0x1e0 [ 542.467379][T13883] el0t_64_sync_handler+0xcc/0xe4 [ 542.468045][T13883] el0t_64_sync+0x1a0/0x1a4 [ 542.468710][T13883] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 542.471071][T13882] block nbd0: shutting down sockets [ 542.629055][T13885] FAULT_INJECTION: forcing a failure. [ 542.629055][T13885] name failslab, interval 1, probability 0, space 0, times 0 [ 542.631047][T13885] CPU: 1 PID: 13885 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.632197][T13885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.633684][T13885] Call trace: [ 542.634150][T13885] dump_backtrace+0x0/0x43c [ 542.634758][T13885] show_stack+0x2c/0x3c [ 542.635315][T13885] __dump_stack+0x30/0x40 [ 542.635941][T13885] dump_stack_lvl+0xf8/0x160 [ 542.636650][T13885] dump_stack+0x1c/0x5c [ 542.637273][T13885] should_fail+0x3c0/0x51c [ 542.637925][T13885] __should_failslab+0xbc/0x10c [ 542.638636][T13885] should_failslab+0x10/0x28 [ 542.639286][T13885] slab_pre_alloc_hook+0x64/0xec [ 542.640009][T13885] __kmalloc_node+0xb8/0x520 [ 542.640707][T13885] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 542.641477][T13885] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 542.642343][T13885] nbd_start_device+0x14c/0xb40 [ 542.643035][T13885] nbd_ioctl+0x514/0xc50 [ 542.643672][T13885] blkdev_ioctl+0x5f8/0xbb8 [ 542.644333][T13885] block_ioctl+0xa4/0x118 [ 542.644957][T13885] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.645691][T13885] invoke_syscall+0x98/0x2b8 [ 542.646410][T13885] el0_svc_common+0x138/0x258 [ 542.647072][T13885] do_el0_svc+0x58/0x14c [ 542.647711][T13885] el0_svc+0x78/0x1e0 [ 542.648269][T13885] el0t_64_sync_handler+0xcc/0xe4 [ 542.649031][T13885] el0t_64_sync+0x1a0/0x1a4 [ 542.649773][T13885] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 542.652178][T13886] block nbd0: shutting down sockets [ 542.789116][T13889] FAULT_INJECTION: forcing a failure. [ 542.789116][T13889] name failslab, interval 1, probability 0, space 0, times 0 [ 542.790990][T13889] CPU: 1 PID: 13889 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.792073][T13889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.793511][T13889] Call trace: [ 542.793963][T13889] dump_backtrace+0x0/0x43c [ 542.794669][T13889] show_stack+0x2c/0x3c [ 542.795248][T13889] __dump_stack+0x30/0x40 [ 542.795912][T13889] dump_stack_lvl+0xf8/0x160 [ 542.796535][T13889] dump_stack+0x1c/0x5c [ 542.797136][T13889] should_fail+0x3c0/0x51c [ 542.797803][T13889] __should_failslab+0xbc/0x10c [ 542.798542][T13889] should_failslab+0x10/0x28 [ 542.799192][T13889] slab_pre_alloc_hook+0x64/0xec [ 542.799888][T13889] __kmalloc_node+0xb8/0x520 [ 542.800575][T13889] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 542.801370][T13889] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 542.802255][T13889] nbd_start_device+0x14c/0xb40 [ 542.803025][T13889] nbd_ioctl+0x514/0xc50 [ 542.803663][T13889] blkdev_ioctl+0x5f8/0xbb8 [ 542.804339][T13889] block_ioctl+0xa4/0x118 [ 542.804973][T13889] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.805745][T13889] invoke_syscall+0x98/0x2b8 [ 542.806421][T13889] el0_svc_common+0x138/0x258 [ 542.807124][T13889] do_el0_svc+0x58/0x14c [ 542.807742][T13889] el0_svc+0x78/0x1e0 [ 542.808324][T13889] el0t_64_sync_handler+0xcc/0xe4 [ 542.809023][T13889] el0t_64_sync+0x1a0/0x1a4 [ 542.809777][T13889] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 542.812613][T13888] block nbd0: shutting down sockets [ 542.949063][T13891] FAULT_INJECTION: forcing a failure. [ 542.949063][T13891] name failslab, interval 1, probability 0, space 0, times 0 [ 542.950898][T13891] CPU: 1 PID: 13891 Comm: syz-executor358 Not tainted syzkaller #0 [ 542.952028][T13891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 542.953360][T13891] Call trace: [ 542.953789][T13891] dump_backtrace+0x0/0x43c [ 542.954416][T13891] show_stack+0x2c/0x3c [ 542.955001][T13891] __dump_stack+0x30/0x40 [ 542.955628][T13891] dump_stack_lvl+0xf8/0x160 [ 542.956248][T13891] dump_stack+0x1c/0x5c [ 542.956791][T13891] should_fail+0x3c0/0x51c [ 542.957448][T13891] __should_failslab+0xbc/0x10c [ 542.958133][T13891] should_failslab+0x10/0x28 [ 542.958803][T13891] slab_pre_alloc_hook+0x64/0xec [ 542.959491][T13891] __kmalloc_node+0xb8/0x520 [ 542.960170][T13891] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 542.960926][T13891] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 542.961775][T13891] nbd_start_device+0x14c/0xb40 [ 542.962514][T13891] nbd_ioctl+0x514/0xc50 [ 542.963147][T13891] blkdev_ioctl+0x5f8/0xbb8 [ 542.963795][T13891] block_ioctl+0xa4/0x118 [ 542.964402][T13891] __arm64_sys_ioctl+0x14c/0x1c8 [ 542.965155][T13891] invoke_syscall+0x98/0x2b8 [ 542.965766][T13891] el0_svc_common+0x138/0x258 [ 542.966416][T13891] do_el0_svc+0x58/0x14c [ 542.967032][T13891] el0_svc+0x78/0x1e0 [ 542.967606][T13891] el0t_64_sync_handler+0xcc/0xe4 [ 542.968316][T13891] el0t_64_sync+0x1a0/0x1a4 [ 542.969058][T13891] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 542.971506][T13892] block nbd0: shutting down sockets [ 543.099116][T13894] FAULT_INJECTION: forcing a failure. [ 543.099116][T13894] name failslab, interval 1, probability 0, space 0, times 0 [ 543.100950][T13894] CPU: 0 PID: 13894 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.101997][T13894] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.103593][T13894] Call trace: [ 543.104124][T13894] dump_backtrace+0x0/0x43c [ 543.104763][T13894] show_stack+0x2c/0x3c [ 543.105354][T13894] __dump_stack+0x30/0x40 [ 543.105907][T13894] dump_stack_lvl+0xf8/0x160 [ 543.106549][T13894] dump_stack+0x1c/0x5c [ 543.107120][T13894] should_fail+0x3c0/0x51c [ 543.107777][T13894] __should_failslab+0xbc/0x10c [ 543.108483][T13894] should_failslab+0x10/0x28 [ 543.109158][T13894] slab_pre_alloc_hook+0x64/0xec [ 543.109875][T13894] __kmalloc_node+0xb8/0x520 [ 543.110519][T13894] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 543.111256][T13894] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 543.112059][T13894] nbd_start_device+0x14c/0xb40 [ 543.112756][T13894] nbd_ioctl+0x514/0xc50 [ 543.113433][T13894] blkdev_ioctl+0x5f8/0xbb8 [ 543.114073][T13894] block_ioctl+0xa4/0x118 [ 543.114663][T13894] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.115401][T13894] invoke_syscall+0x98/0x2b8 [ 543.116047][T13894] el0_svc_common+0x138/0x258 [ 543.116711][T13894] do_el0_svc+0x58/0x14c [ 543.117382][T13894] el0_svc+0x78/0x1e0 [ 543.117975][T13894] el0t_64_sync_handler+0xcc/0xe4 [ 543.118661][T13894] el0t_64_sync+0x1a0/0x1a4 [ 543.119389][T13894] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 543.121837][T13895] block nbd0: shutting down sockets [ 543.267105][T13898] block nbd0: Device being setup by another task [ 543.268227][T13897] FAULT_INJECTION: forcing a failure. [ 543.268227][T13897] name failslab, interval 1, probability 0, space 0, times 0 [ 543.269941][T13897] CPU: 1 PID: 13897 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.270995][T13897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.272343][T13897] Call trace: [ 543.272792][T13897] dump_backtrace+0x0/0x43c [ 543.273413][T13897] show_stack+0x2c/0x3c [ 543.273974][T13897] __dump_stack+0x30/0x40 [ 543.274503][T13897] dump_stack_lvl+0xf8/0x160 [ 543.275110][T13897] dump_stack+0x1c/0x5c [ 543.275679][T13897] should_fail+0x3c0/0x51c [ 543.276319][T13897] __should_failslab+0xbc/0x10c [ 543.277044][T13897] should_failslab+0x10/0x28 [ 543.277676][T13897] slab_pre_alloc_hook+0x64/0xec [ 543.278367][T13897] kmem_cache_alloc+0x94/0x3e4 [ 543.279008][T13897] __d_alloc+0x3c/0x65c [ 543.279593][T13897] d_alloc_parallel+0x7c/0x11d4 [ 543.280298][T13897] __lookup_slow+0x104/0x380 [ 543.280985][T13897] lookup_one_len+0x178/0x28c [ 543.281651][T13897] start_creating+0x19c/0x2e0 [ 543.282327][T13897] debugfs_create_dir+0x30/0x3f4 [ 543.283078][T13897] nbd_start_device+0x3c8/0xb40 [ 543.283800][T13897] nbd_ioctl+0x514/0xc50 [ 543.284453][T13897] blkdev_ioctl+0x5f8/0xbb8 [ 543.285119][T13897] block_ioctl+0xa4/0x118 [ 543.285725][T13897] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.286399][T13897] invoke_syscall+0x98/0x2b8 [ 543.287042][T13897] el0_svc_common+0x138/0x258 [ 543.287768][T13897] do_el0_svc+0x58/0x14c [ 543.288325][T13897] el0_svc+0x78/0x1e0 [ 543.288901][T13897] el0t_64_sync_handler+0xcc/0xe4 [ 543.289611][T13897] el0t_64_sync+0x1a0/0x1a4 [ 543.290337][T13897] block nbd0: Failed to create debugfs dir for 'nbd0' [ 543.291865][T13898] block nbd0: shutting down sockets [ 543.429069][T13900] FAULT_INJECTION: forcing a failure. [ 543.429069][T13900] name failslab, interval 1, probability 0, space 0, times 0 [ 543.431075][T13900] CPU: 0 PID: 13900 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.432241][T13900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.433855][T13900] Call trace: [ 543.434303][T13900] dump_backtrace+0x0/0x43c [ 543.434984][T13900] show_stack+0x2c/0x3c [ 543.435581][T13900] __dump_stack+0x30/0x40 [ 543.436242][T13900] dump_stack_lvl+0xf8/0x160 [ 543.436873][T13900] dump_stack+0x1c/0x5c [ 543.437475][T13900] should_fail+0x3c0/0x51c [ 543.438175][T13900] __should_failslab+0xbc/0x10c [ 543.438916][T13900] should_failslab+0x10/0x28 [ 543.439633][T13900] slab_pre_alloc_hook+0x64/0xec [ 543.440344][T13900] __kmalloc_node+0xb8/0x520 [ 543.441094][T13900] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 543.441905][T13900] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 543.442768][T13900] nbd_start_device+0x14c/0xb40 [ 543.443606][T13900] nbd_ioctl+0x514/0xc50 [ 543.444290][T13900] blkdev_ioctl+0x5f8/0xbb8 [ 543.444960][T13900] block_ioctl+0xa4/0x118 [ 543.445627][T13900] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.446311][T13900] invoke_syscall+0x98/0x2b8 [ 543.446972][T13900] el0_svc_common+0x138/0x258 [ 543.447673][T13900] do_el0_svc+0x58/0x14c [ 543.448300][T13900] el0_svc+0x78/0x1e0 [ 543.448907][T13900] el0t_64_sync_handler+0xcc/0xe4 [ 543.449575][T13900] el0t_64_sync+0x1a0/0x1a4 [ 543.450378][T13900] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 543.452832][T13901] block nbd0: shutting down sockets [ 543.569054][T13903] FAULT_INJECTION: forcing a failure. [ 543.569054][T13903] name failslab, interval 1, probability 0, space 0, times 0 [ 543.570861][T13903] CPU: 1 PID: 13903 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.571895][T13903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.573251][T13903] Call trace: [ 543.573726][T13903] dump_backtrace+0x0/0x43c [ 543.574352][T13903] show_stack+0x2c/0x3c [ 543.574909][T13903] __dump_stack+0x30/0x40 [ 543.575524][T13903] dump_stack_lvl+0xf8/0x160 [ 543.576163][T13903] dump_stack+0x1c/0x5c [ 543.576788][T13903] should_fail+0x3c0/0x51c [ 543.577441][T13903] __should_failslab+0xbc/0x10c [ 543.578140][T13903] should_failslab+0x10/0x28 [ 543.578818][T13903] slab_pre_alloc_hook+0x64/0xec [ 543.579498][T13903] __kmalloc_node+0xb8/0x520 [ 543.580169][T13903] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 543.580945][T13903] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 543.581792][T13903] nbd_start_device+0x14c/0xb40 [ 543.582519][T13903] nbd_ioctl+0x514/0xc50 [ 543.583170][T13903] blkdev_ioctl+0x5f8/0xbb8 [ 543.583842][T13903] block_ioctl+0xa4/0x118 [ 543.584477][T13903] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.585163][T13903] invoke_syscall+0x98/0x2b8 [ 543.585874][T13903] el0_svc_common+0x138/0x258 [ 543.586562][T13903] do_el0_svc+0x58/0x14c [ 543.587197][T13903] el0_svc+0x78/0x1e0 [ 543.587761][T13903] el0t_64_sync_handler+0xcc/0xe4 [ 543.588445][T13903] el0t_64_sync+0x1a0/0x1a4 [ 543.589498][T13903] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 543.592390][T13904] block nbd0: shutting down sockets [ 543.719044][T13906] FAULT_INJECTION: forcing a failure. [ 543.719044][T13906] name failslab, interval 1, probability 0, space 0, times 0 [ 543.720875][T13906] CPU: 1 PID: 13906 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.721909][T13906] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.723272][T13906] Call trace: [ 543.723733][T13906] dump_backtrace+0x0/0x43c [ 543.724377][T13906] show_stack+0x2c/0x3c [ 543.724970][T13906] __dump_stack+0x30/0x40 [ 543.725577][T13906] dump_stack_lvl+0xf8/0x160 [ 543.726270][T13906] dump_stack+0x1c/0x5c [ 543.726844][T13906] should_fail+0x3c0/0x51c [ 543.727517][T13906] __should_failslab+0xbc/0x10c [ 543.728192][T13906] should_failslab+0x10/0x28 [ 543.728809][T13906] slab_pre_alloc_hook+0x64/0xec [ 543.729514][T13906] __kmalloc_node+0xb8/0x520 [ 543.730241][T13906] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 543.730974][T13906] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 543.731735][T13906] nbd_start_device+0x14c/0xb40 [ 543.732426][T13906] nbd_ioctl+0x514/0xc50 [ 543.733026][T13906] blkdev_ioctl+0x5f8/0xbb8 [ 543.733678][T13906] block_ioctl+0xa4/0x118 [ 543.734328][T13906] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.735071][T13906] invoke_syscall+0x98/0x2b8 [ 543.735730][T13906] el0_svc_common+0x138/0x258 [ 543.736419][T13906] do_el0_svc+0x58/0x14c [ 543.737013][T13906] el0_svc+0x78/0x1e0 [ 543.737590][T13906] el0t_64_sync_handler+0xcc/0xe4 [ 543.738347][T13906] el0t_64_sync+0x1a0/0x1a4 [ 543.739150][T13906] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 543.741618][T13907] block nbd0: shutting down sockets [ 543.879055][T13909] FAULT_INJECTION: forcing a failure. [ 543.879055][T13909] name failslab, interval 1, probability 0, space 0, times 0 [ 543.880915][T13909] CPU: 1 PID: 13909 Comm: syz-executor358 Not tainted syzkaller #0 [ 543.882067][T13909] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 543.883518][T13909] Call trace: [ 543.883984][T13909] dump_backtrace+0x0/0x43c [ 543.884650][T13909] show_stack+0x2c/0x3c [ 543.885229][T13909] __dump_stack+0x30/0x40 [ 543.885860][T13909] dump_stack_lvl+0xf8/0x160 [ 543.886529][T13909] dump_stack+0x1c/0x5c [ 543.887079][T13909] should_fail+0x3c0/0x51c [ 543.887804][T13909] __should_failslab+0xbc/0x10c [ 543.888553][T13909] should_failslab+0x10/0x28 [ 543.889303][T13909] slab_pre_alloc_hook+0x64/0xec [ 543.890072][T13909] __kmalloc_node+0xb8/0x520 [ 543.890777][T13909] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 543.891570][T13909] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 543.892368][T13909] nbd_start_device+0x14c/0xb40 [ 543.893145][T13909] nbd_ioctl+0x514/0xc50 [ 543.893789][T13909] blkdev_ioctl+0x5f8/0xbb8 [ 543.894506][T13909] block_ioctl+0xa4/0x118 [ 543.895154][T13909] __arm64_sys_ioctl+0x14c/0x1c8 [ 543.895898][T13909] invoke_syscall+0x98/0x2b8 [ 543.896598][T13909] el0_svc_common+0x138/0x258 [ 543.897245][T13909] do_el0_svc+0x58/0x14c [ 543.897874][T13909] el0_svc+0x78/0x1e0 [ 543.898440][T13909] el0t_64_sync_handler+0xcc/0xe4 [ 543.899180][T13909] el0t_64_sync+0x1a0/0x1a4 [ 543.899896][T13909] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 543.902321][T13910] block nbd0: shutting down sockets [ 544.029101][T13912] FAULT_INJECTION: forcing a failure. [ 544.029101][T13912] name failslab, interval 1, probability 0, space 0, times 0 [ 544.030976][T13912] CPU: 1 PID: 13912 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.032167][T13912] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.033547][T13912] Call trace: [ 544.034004][T13912] dump_backtrace+0x0/0x43c [ 544.034667][T13912] show_stack+0x2c/0x3c [ 544.035257][T13912] __dump_stack+0x30/0x40 [ 544.035880][T13912] dump_stack_lvl+0xf8/0x160 [ 544.036588][T13912] dump_stack+0x1c/0x5c [ 544.037277][T13912] should_fail+0x3c0/0x51c [ 544.037992][T13912] __should_failslab+0xbc/0x10c [ 544.038722][T13912] should_failslab+0x10/0x28 [ 544.039391][T13912] slab_pre_alloc_hook+0x64/0xec [ 544.040080][T13912] __kmalloc_node+0xb8/0x520 [ 544.040733][T13912] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 544.041512][T13912] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 544.042351][T13912] nbd_start_device+0x14c/0xb40 [ 544.043030][T13912] nbd_ioctl+0x514/0xc50 [ 544.043639][T13912] blkdev_ioctl+0x5f8/0xbb8 [ 544.044308][T13912] block_ioctl+0xa4/0x118 [ 544.044943][T13912] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.045636][T13912] invoke_syscall+0x98/0x2b8 [ 544.046318][T13912] el0_svc_common+0x138/0x258 [ 544.046983][T13912] do_el0_svc+0x58/0x14c [ 544.047627][T13912] el0_svc+0x78/0x1e0 [ 544.048190][T13912] el0t_64_sync_handler+0xcc/0xe4 [ 544.048965][T13912] el0t_64_sync+0x1a0/0x1a4 [ 544.049959][T13912] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 544.052889][T13913] block nbd0: shutting down sockets [ 544.219106][T13915] FAULT_INJECTION: forcing a failure. [ 544.219106][T13915] name failslab, interval 1, probability 0, space 0, times 0 [ 544.221149][T13915] CPU: 0 PID: 13915 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.222335][T13915] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.223851][T13915] Call trace: [ 544.224309][T13915] dump_backtrace+0x0/0x43c [ 544.224916][T13915] show_stack+0x2c/0x3c [ 544.225538][T13915] __dump_stack+0x30/0x40 [ 544.226112][T13915] dump_stack_lvl+0xf8/0x160 [ 544.226770][T13915] dump_stack+0x1c/0x5c [ 544.227364][T13915] should_fail+0x3c0/0x51c [ 544.227982][T13915] __should_failslab+0xbc/0x10c [ 544.228666][T13915] should_failslab+0x10/0x28 [ 544.229293][T13915] slab_pre_alloc_hook+0x64/0xec [ 544.229984][T13915] __kmalloc_node+0xb8/0x520 [ 544.230638][T13915] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 544.231411][T13915] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 544.232202][T13915] nbd_start_device+0x14c/0xb40 [ 544.232838][T13915] nbd_ioctl+0x514/0xc50 [ 544.233414][T13915] blkdev_ioctl+0x5f8/0xbb8 [ 544.234010][T13915] block_ioctl+0xa4/0x118 [ 544.234573][T13915] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.235346][T13915] invoke_syscall+0x98/0x2b8 [ 544.235994][T13915] el0_svc_common+0x138/0x258 [ 544.236626][T13915] do_el0_svc+0x58/0x14c [ 544.237234][T13915] el0_svc+0x78/0x1e0 [ 544.237805][T13915] el0t_64_sync_handler+0xcc/0xe4 [ 544.238502][T13915] el0t_64_sync+0x1a0/0x1a4 [ 544.239245][T13915] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 544.241583][T13916] block nbd0: shutting down sockets [ 544.369096][T13918] FAULT_INJECTION: forcing a failure. [ 544.369096][T13918] name failslab, interval 1, probability 0, space 0, times 0 [ 544.370833][T13918] CPU: 0 PID: 13918 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.371855][T13918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.373235][T13918] Call trace: [ 544.373626][T13918] dump_backtrace+0x0/0x43c [ 544.374255][T13918] show_stack+0x2c/0x3c [ 544.374858][T13918] __dump_stack+0x30/0x40 [ 544.375465][T13918] dump_stack_lvl+0xf8/0x160 [ 544.376101][T13918] dump_stack+0x1c/0x5c [ 544.376695][T13918] should_fail+0x3c0/0x51c [ 544.377297][T13918] __should_failslab+0xbc/0x10c [ 544.378036][T13918] should_failslab+0x10/0x28 [ 544.378755][T13918] slab_pre_alloc_hook+0x64/0xec [ 544.379522][T13918] __kmalloc_node+0xb8/0x520 [ 544.380217][T13918] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 544.380995][T13918] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 544.381817][T13918] nbd_start_device+0x14c/0xb40 [ 544.382519][T13918] nbd_ioctl+0x514/0xc50 [ 544.383153][T13918] blkdev_ioctl+0x5f8/0xbb8 [ 544.383749][T13918] block_ioctl+0xa4/0x118 [ 544.384390][T13918] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.385083][T13918] invoke_syscall+0x98/0x2b8 [ 544.385714][T13918] el0_svc_common+0x138/0x258 [ 544.386353][T13918] do_el0_svc+0x58/0x14c [ 544.386942][T13918] el0_svc+0x78/0x1e0 [ 544.387502][T13918] el0t_64_sync_handler+0xcc/0xe4 [ 544.388222][T13918] el0t_64_sync+0x1a0/0x1a4 [ 544.388912][T13918] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 544.391414][T13919] block nbd0: shutting down sockets [ 544.539081][T13922] FAULT_INJECTION: forcing a failure. [ 544.539081][T13922] name failslab, interval 1, probability 0, space 0, times 0 [ 544.541157][T13922] CPU: 1 PID: 13922 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.542425][T13922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.543825][T13922] Call trace: [ 544.544307][T13922] dump_backtrace+0x0/0x43c [ 544.544922][T13922] show_stack+0x2c/0x3c [ 544.545519][T13922] __dump_stack+0x30/0x40 [ 544.546175][T13922] dump_stack_lvl+0xf8/0x160 [ 544.546787][T13922] dump_stack+0x1c/0x5c [ 544.547376][T13922] should_fail+0x3c0/0x51c [ 544.548034][T13922] __should_failslab+0xbc/0x10c [ 544.548694][T13922] should_failslab+0x10/0x28 [ 544.549427][T13922] slab_pre_alloc_hook+0x64/0xec [ 544.550179][T13922] __kmalloc_node+0xb8/0x520 [ 544.550866][T13922] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 544.551730][T13922] nbd_start_device+0x14c/0xb40 [ 544.552446][T13922] nbd_ioctl+0x514/0xc50 [ 544.553111][T13922] blkdev_ioctl+0x5f8/0xbb8 [ 544.553821][T13922] block_ioctl+0xa4/0x118 [ 544.554536][T13922] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.555281][T13922] invoke_syscall+0x98/0x2b8 [ 544.555983][T13922] el0_svc_common+0x138/0x258 [ 544.556613][T13922] do_el0_svc+0x58/0x14c [ 544.557198][T13922] el0_svc+0x78/0x1e0 [ 544.557762][T13922] el0t_64_sync_handler+0xcc/0xe4 [ 544.558437][T13922] el0t_64_sync+0x1a0/0x1a4 [ 544.560838][T13921] block nbd0: shutting down sockets [ 544.699065][T13924] FAULT_INJECTION: forcing a failure. [ 544.699065][T13924] name failslab, interval 1, probability 0, space 0, times 0 [ 544.701006][T13924] CPU: 0 PID: 13924 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.702149][T13924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.703579][T13924] Call trace: [ 544.704060][T13924] dump_backtrace+0x0/0x43c [ 544.704706][T13924] show_stack+0x2c/0x3c [ 544.705320][T13924] __dump_stack+0x30/0x40 [ 544.705939][T13924] dump_stack_lvl+0xf8/0x160 [ 544.706620][T13924] dump_stack+0x1c/0x5c [ 544.707228][T13924] should_fail+0x3c0/0x51c [ 544.707871][T13924] __should_failslab+0xbc/0x10c [ 544.708616][T13924] should_failslab+0x10/0x28 [ 544.709279][T13924] slab_pre_alloc_hook+0x64/0xec [ 544.709995][T13924] __kmalloc_node+0xb8/0x520 [ 544.710663][T13924] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 544.711445][T13924] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 544.712224][T13924] nbd_start_device+0x14c/0xb40 [ 544.712938][T13924] nbd_ioctl+0x514/0xc50 [ 544.713550][T13924] blkdev_ioctl+0x5f8/0xbb8 [ 544.714148][T13924] block_ioctl+0xa4/0x118 [ 544.714783][T13924] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.715481][T13924] invoke_syscall+0x98/0x2b8 [ 544.716133][T13924] el0_svc_common+0x138/0x258 [ 544.716844][T13924] do_el0_svc+0x58/0x14c [ 544.717487][T13924] el0_svc+0x78/0x1e0 [ 544.718120][T13924] el0t_64_sync_handler+0xcc/0xe4 [ 544.718817][T13924] el0t_64_sync+0x1a0/0x1a4 [ 544.719566][T13924] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 544.722527][T13925] block nbd0: shutting down sockets [ 544.869068][T13927] FAULT_INJECTION: forcing a failure. [ 544.869068][T13927] name failslab, interval 1, probability 0, space 0, times 0 [ 544.870949][T13927] CPU: 1 PID: 13927 Comm: syz-executor358 Not tainted syzkaller #0 [ 544.872124][T13927] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 544.873422][T13927] Call trace: [ 544.873833][T13927] dump_backtrace+0x0/0x43c [ 544.874453][T13927] show_stack+0x2c/0x3c [ 544.875010][T13927] __dump_stack+0x30/0x40 [ 544.875570][T13927] dump_stack_lvl+0xf8/0x160 [ 544.876184][T13927] dump_stack+0x1c/0x5c [ 544.876760][T13927] should_fail+0x3c0/0x51c [ 544.877426][T13927] __should_failslab+0xbc/0x10c [ 544.878091][T13927] should_failslab+0x10/0x28 [ 544.878767][T13927] slab_pre_alloc_hook+0x64/0xec [ 544.879488][T13927] __kmalloc_node+0xb8/0x520 [ 544.880179][T13927] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 544.880990][T13927] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 544.881826][T13927] nbd_start_device+0x14c/0xb40 [ 544.882523][T13927] nbd_ioctl+0x514/0xc50 [ 544.883170][T13927] blkdev_ioctl+0x5f8/0xbb8 [ 544.883856][T13927] block_ioctl+0xa4/0x118 [ 544.884444][T13927] __arm64_sys_ioctl+0x14c/0x1c8 [ 544.885138][T13927] invoke_syscall+0x98/0x2b8 [ 544.885836][T13927] el0_svc_common+0x138/0x258 [ 544.886481][T13927] do_el0_svc+0x58/0x14c [ 544.887120][T13927] el0_svc+0x78/0x1e0 [ 544.887717][T13927] el0t_64_sync_handler+0xcc/0xe4 [ 544.888451][T13927] el0t_64_sync+0x1a0/0x1a4 [ 544.889242][T13927] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 544.891740][T13928] block nbd0: shutting down sockets [ 545.019118][T13930] FAULT_INJECTION: forcing a failure. [ 545.019118][T13930] name failslab, interval 1, probability 0, space 0, times 0 [ 545.021019][T13930] CPU: 1 PID: 13930 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.022292][T13930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.023986][T13930] Call trace: [ 545.024445][T13930] dump_backtrace+0x0/0x43c [ 545.025109][T13930] show_stack+0x2c/0x3c [ 545.025672][T13930] __dump_stack+0x30/0x40 [ 545.026320][T13930] dump_stack_lvl+0xf8/0x160 [ 545.026974][T13930] dump_stack+0x1c/0x5c [ 545.027567][T13930] should_fail+0x3c0/0x51c [ 545.028183][T13930] __should_failslab+0xbc/0x10c [ 545.028913][T13930] should_failslab+0x10/0x28 [ 545.029574][T13930] slab_pre_alloc_hook+0x64/0xec [ 545.030328][T13930] __kmalloc_node+0xb8/0x520 [ 545.030941][T13930] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 545.031736][T13930] nbd_start_device+0x14c/0xb40 [ 545.032375][T13930] nbd_ioctl+0x514/0xc50 [ 545.032981][T13930] blkdev_ioctl+0x5f8/0xbb8 [ 545.033685][T13930] block_ioctl+0xa4/0x118 [ 545.034378][T13930] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.035162][T13930] invoke_syscall+0x98/0x2b8 [ 545.035845][T13930] el0_svc_common+0x138/0x258 [ 545.036545][T13930] do_el0_svc+0x58/0x14c [ 545.037133][T13930] el0_svc+0x78/0x1e0 [ 545.037690][T13930] el0t_64_sync_handler+0xcc/0xe4 [ 545.038395][T13930] el0t_64_sync+0x1a0/0x1a4 [ 545.041453][T13931] block nbd0: shutting down sockets [ 545.169044][T13933] FAULT_INJECTION: forcing a failure. [ 545.169044][T13933] name failslab, interval 1, probability 0, space 0, times 0 [ 545.171031][T13933] CPU: 0 PID: 13933 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.172108][T13933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.173600][T13933] Call trace: [ 545.174003][T13933] dump_backtrace+0x0/0x43c [ 545.174614][T13933] show_stack+0x2c/0x3c [ 545.175214][T13933] __dump_stack+0x30/0x40 [ 545.175834][T13933] dump_stack_lvl+0xf8/0x160 [ 545.176430][T13933] dump_stack+0x1c/0x5c [ 545.176968][T13933] should_fail+0x3c0/0x51c [ 545.177604][T13933] __should_failslab+0xbc/0x10c [ 545.178312][T13933] should_failslab+0x10/0x28 [ 545.178965][T13933] slab_pre_alloc_hook+0x64/0xec [ 545.179640][T13933] __kmalloc_node+0xb8/0x520 [ 545.180301][T13933] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.181084][T13933] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.181853][T13933] nbd_start_device+0x14c/0xb40 [ 545.182529][T13933] nbd_ioctl+0x514/0xc50 [ 545.183147][T13933] blkdev_ioctl+0x5f8/0xbb8 [ 545.183779][T13933] block_ioctl+0xa4/0x118 [ 545.184395][T13933] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.185111][T13933] invoke_syscall+0x98/0x2b8 [ 545.185736][T13933] el0_svc_common+0x138/0x258 [ 545.186399][T13933] do_el0_svc+0x58/0x14c [ 545.187024][T13933] el0_svc+0x78/0x1e0 [ 545.187559][T13933] el0t_64_sync_handler+0xcc/0xe4 [ 545.188334][T13933] el0t_64_sync+0x1a0/0x1a4 [ 545.189110][T13933] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.191575][T13934] block nbd0: shutting down sockets [ 545.319062][T13936] FAULT_INJECTION: forcing a failure. [ 545.319062][T13936] name failslab, interval 1, probability 0, space 0, times 0 [ 545.321000][T13936] CPU: 0 PID: 13936 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.322277][T13936] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.323807][T13936] Call trace: [ 545.324247][T13936] dump_backtrace+0x0/0x43c [ 545.324911][T13936] show_stack+0x2c/0x3c [ 545.325538][T13936] __dump_stack+0x30/0x40 [ 545.326229][T13936] dump_stack_lvl+0xf8/0x160 [ 545.326983][T13936] dump_stack+0x1c/0x5c [ 545.327612][T13936] should_fail+0x3c0/0x51c [ 545.328322][T13936] __should_failslab+0xbc/0x10c [ 545.329107][T13936] should_failslab+0x10/0x28 [ 545.329800][T13936] slab_pre_alloc_hook+0x64/0xec [ 545.330580][T13936] __kmalloc_node+0xb8/0x520 [ 545.331337][T13936] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.332260][T13936] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.333223][T13936] nbd_start_device+0x14c/0xb40 [ 545.334041][T13936] nbd_ioctl+0x514/0xc50 [ 545.334753][T13936] blkdev_ioctl+0x5f8/0xbb8 [ 545.335523][T13936] block_ioctl+0xa4/0x118 [ 545.336198][T13936] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.336903][T13936] invoke_syscall+0x98/0x2b8 [ 545.337586][T13936] el0_svc_common+0x138/0x258 [ 545.338243][T13936] do_el0_svc+0x58/0x14c [ 545.338854][T13936] el0_svc+0x78/0x1e0 [ 545.339413][T13936] el0t_64_sync_handler+0xcc/0xe4 [ 545.340115][T13936] el0t_64_sync+0x1a0/0x1a4 [ 545.340867][T13936] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.343368][T13937] block nbd0: shutting down sockets [ 545.479040][T13939] FAULT_INJECTION: forcing a failure. [ 545.479040][T13939] name failslab, interval 1, probability 0, space 0, times 0 [ 545.480944][T13939] CPU: 1 PID: 13939 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.482072][T13939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.483485][T13939] Call trace: [ 545.483945][T13939] dump_backtrace+0x0/0x43c [ 545.484710][T13939] show_stack+0x2c/0x3c [ 545.485335][T13939] __dump_stack+0x30/0x40 [ 545.485976][T13939] dump_stack_lvl+0xf8/0x160 [ 545.486652][T13939] dump_stack+0x1c/0x5c [ 545.487288][T13939] should_fail+0x3c0/0x51c [ 545.488006][T13939] __should_failslab+0xbc/0x10c [ 545.488712][T13939] should_failslab+0x10/0x28 [ 545.489371][T13939] slab_pre_alloc_hook+0x64/0xec [ 545.490072][T13939] __kmalloc_node+0xb8/0x520 [ 545.490705][T13939] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.491413][T13939] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.492231][T13939] nbd_start_device+0x14c/0xb40 [ 545.492919][T13939] nbd_ioctl+0x514/0xc50 [ 545.493512][T13939] blkdev_ioctl+0x5f8/0xbb8 [ 545.494177][T13939] block_ioctl+0xa4/0x118 [ 545.494771][T13939] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.495483][T13939] invoke_syscall+0x98/0x2b8 [ 545.496189][T13939] el0_svc_common+0x138/0x258 [ 545.496847][T13939] do_el0_svc+0x58/0x14c [ 545.497435][T13939] el0_svc+0x78/0x1e0 [ 545.497988][T13939] el0t_64_sync_handler+0xcc/0xe4 [ 545.498705][T13939] el0t_64_sync+0x1a0/0x1a4 [ 545.499441][T13939] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.501882][T13940] block nbd0: shutting down sockets [ 545.629102][T13942] FAULT_INJECTION: forcing a failure. [ 545.629102][T13942] name failslab, interval 1, probability 0, space 0, times 0 [ 545.631011][T13942] CPU: 1 PID: 13942 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.632173][T13942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.633603][T13942] Call trace: [ 545.634069][T13942] dump_backtrace+0x0/0x43c [ 545.634699][T13942] show_stack+0x2c/0x3c [ 545.635291][T13942] __dump_stack+0x30/0x40 [ 545.635938][T13942] dump_stack_lvl+0xf8/0x160 [ 545.636624][T13942] dump_stack+0x1c/0x5c [ 545.637190][T13942] should_fail+0x3c0/0x51c [ 545.637817][T13942] __should_failslab+0xbc/0x10c [ 545.638548][T13942] should_failslab+0x10/0x28 [ 545.639184][T13942] slab_pre_alloc_hook+0x64/0xec [ 545.639888][T13942] __kmalloc_node+0xb8/0x520 [ 545.640544][T13942] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.641323][T13942] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.642205][T13942] nbd_start_device+0x14c/0xb40 [ 545.642927][T13942] nbd_ioctl+0x514/0xc50 [ 545.643493][T13942] blkdev_ioctl+0x5f8/0xbb8 [ 545.644161][T13942] block_ioctl+0xa4/0x118 [ 545.644769][T13942] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.645462][T13942] invoke_syscall+0x98/0x2b8 [ 545.646153][T13942] el0_svc_common+0x138/0x258 [ 545.646806][T13942] do_el0_svc+0x58/0x14c [ 545.647420][T13942] el0_svc+0x78/0x1e0 [ 545.648022][T13942] el0t_64_sync_handler+0xcc/0xe4 [ 545.648682][T13942] el0t_64_sync+0x1a0/0x1a4 [ 545.649380][T13942] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.651770][T13943] block nbd0: shutting down sockets [ 545.789058][T13945] FAULT_INJECTION: forcing a failure. [ 545.789058][T13945] name failslab, interval 1, probability 0, space 0, times 0 [ 545.790948][T13945] CPU: 1 PID: 13945 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.792025][T13945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.793414][T13945] Call trace: [ 545.793839][T13945] dump_backtrace+0x0/0x43c [ 545.794416][T13945] show_stack+0x2c/0x3c [ 545.795002][T13945] __dump_stack+0x30/0x40 [ 545.795660][T13945] dump_stack_lvl+0xf8/0x160 [ 545.796259][T13945] dump_stack+0x1c/0x5c [ 545.796782][T13945] should_fail+0x3c0/0x51c [ 545.797387][T13945] __should_failslab+0xbc/0x10c [ 545.798073][T13945] should_failslab+0x10/0x28 [ 545.798765][T13945] slab_pre_alloc_hook+0x64/0xec [ 545.799491][T13945] __kmalloc_node+0xb8/0x520 [ 545.800113][T13945] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.800841][T13945] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.801652][T13945] nbd_start_device+0x14c/0xb40 [ 545.802297][T13945] nbd_ioctl+0x514/0xc50 [ 545.802864][T13945] blkdev_ioctl+0x5f8/0xbb8 [ 545.803460][T13945] block_ioctl+0xa4/0x118 [ 545.804064][T13945] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.804761][T13945] invoke_syscall+0x98/0x2b8 [ 545.805384][T13945] el0_svc_common+0x138/0x258 [ 545.806026][T13945] do_el0_svc+0x58/0x14c [ 545.806619][T13945] el0_svc+0x78/0x1e0 [ 545.807163][T13945] el0t_64_sync_handler+0xcc/0xe4 [ 545.807877][T13945] el0t_64_sync+0x1a0/0x1a4 [ 545.808574][T13945] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.810972][T13946] block nbd0: shutting down sockets [ 545.939070][T13948] FAULT_INJECTION: forcing a failure. [ 545.939070][T13948] name failslab, interval 1, probability 0, space 0, times 0 [ 545.941146][T13948] CPU: 0 PID: 13948 Comm: syz-executor358 Not tainted syzkaller #0 [ 545.942386][T13948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 545.943887][T13948] Call trace: [ 545.944388][T13948] dump_backtrace+0x0/0x43c [ 545.945082][T13948] show_stack+0x2c/0x3c [ 545.945656][T13948] __dump_stack+0x30/0x40 [ 545.946259][T13948] dump_stack_lvl+0xf8/0x160 [ 545.946913][T13948] dump_stack+0x1c/0x5c [ 545.947503][T13948] should_fail+0x3c0/0x51c [ 545.948187][T13948] __should_failslab+0xbc/0x10c [ 545.948900][T13948] should_failslab+0x10/0x28 [ 545.949607][T13948] slab_pre_alloc_hook+0x64/0xec [ 545.950295][T13948] __kmalloc_node+0xb8/0x520 [ 545.950962][T13948] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 545.951707][T13948] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 545.952506][T13948] nbd_start_device+0x14c/0xb40 [ 545.953152][T13948] nbd_ioctl+0x514/0xc50 [ 545.953746][T13948] blkdev_ioctl+0x5f8/0xbb8 [ 545.954369][T13948] block_ioctl+0xa4/0x118 [ 545.955003][T13948] __arm64_sys_ioctl+0x14c/0x1c8 [ 545.955702][T13948] invoke_syscall+0x98/0x2b8 [ 545.956337][T13948] el0_svc_common+0x138/0x258 [ 545.957035][T13948] do_el0_svc+0x58/0x14c [ 545.957604][T13948] el0_svc+0x78/0x1e0 [ 545.958191][T13948] el0t_64_sync_handler+0xcc/0xe4 [ 545.958846][T13948] el0t_64_sync+0x1a0/0x1a4 [ 545.959559][T13948] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 545.962021][T13949] block nbd0: shutting down sockets [ 546.089097][T13951] FAULT_INJECTION: forcing a failure. [ 546.089097][T13951] name failslab, interval 1, probability 0, space 0, times 0 [ 546.091103][T13951] CPU: 1 PID: 13951 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.092259][T13951] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.093614][T13951] Call trace: [ 546.094071][T13951] dump_backtrace+0x0/0x43c [ 546.094711][T13951] show_stack+0x2c/0x3c [ 546.095284][T13951] __dump_stack+0x30/0x40 [ 546.095917][T13951] dump_stack_lvl+0xf8/0x160 [ 546.096568][T13951] dump_stack+0x1c/0x5c [ 546.097183][T13951] should_fail+0x3c0/0x51c [ 546.097762][T13951] __should_failslab+0xbc/0x10c [ 546.098469][T13951] should_failslab+0x10/0x28 [ 546.099191][T13951] slab_pre_alloc_hook+0x64/0xec [ 546.099999][T13951] __kmalloc_node+0xb8/0x520 [ 546.100726][T13951] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.101512][T13951] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.102337][T13951] nbd_start_device+0x14c/0xb40 [ 546.103046][T13951] nbd_ioctl+0x514/0xc50 [ 546.103667][T13951] blkdev_ioctl+0x5f8/0xbb8 [ 546.104316][T13951] block_ioctl+0xa4/0x118 [ 546.104897][T13951] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.105642][T13951] invoke_syscall+0x98/0x2b8 [ 546.106332][T13951] el0_svc_common+0x138/0x258 [ 546.106997][T13951] do_el0_svc+0x58/0x14c [ 546.107586][T13951] el0_svc+0x78/0x1e0 [ 546.108193][T13951] el0t_64_sync_handler+0xcc/0xe4 [ 546.108912][T13951] el0t_64_sync+0x1a0/0x1a4 [ 546.110012][T13951] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.112987][T13952] block nbd0: shutting down sockets [ 546.269093][T13955] FAULT_INJECTION: forcing a failure. [ 546.269093][T13955] name failslab, interval 1, probability 0, space 0, times 0 [ 546.271029][T13955] CPU: 1 PID: 13955 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.272195][T13955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.273559][T13955] Call trace: [ 546.274020][T13955] dump_backtrace+0x0/0x43c [ 546.274716][T13955] show_stack+0x2c/0x3c [ 546.275277][T13955] __dump_stack+0x30/0x40 [ 546.275925][T13955] dump_stack_lvl+0xf8/0x160 [ 546.276544][T13955] dump_stack+0x1c/0x5c [ 546.277128][T13955] should_fail+0x3c0/0x51c [ 546.277758][T13955] __should_failslab+0xbc/0x10c [ 546.278435][T13955] should_failslab+0x10/0x28 [ 546.279106][T13955] slab_pre_alloc_hook+0x64/0xec [ 546.279820][T13955] __kmalloc_node+0xb8/0x520 [ 546.280502][T13955] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.281251][T13955] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.282057][T13955] nbd_start_device+0x14c/0xb40 [ 546.282726][T13955] nbd_ioctl+0x514/0xc50 [ 546.283328][T13955] blkdev_ioctl+0x5f8/0xbb8 [ 546.283956][T13955] block_ioctl+0xa4/0x118 [ 546.284577][T13955] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.285293][T13955] invoke_syscall+0x98/0x2b8 [ 546.286057][T13955] el0_svc_common+0x138/0x258 [ 546.286800][T13955] do_el0_svc+0x58/0x14c [ 546.287468][T13955] el0_svc+0x78/0x1e0 [ 546.288140][T13955] el0t_64_sync_handler+0xcc/0xe4 [ 546.288946][T13955] el0t_64_sync+0x1a0/0x1a4 [ 546.289694][T13955] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.292184][T13954] block nbd0: shutting down sockets [ 546.429051][T13957] FAULT_INJECTION: forcing a failure. [ 546.429051][T13957] name failslab, interval 1, probability 0, space 0, times 0 [ 546.430835][T13957] CPU: 1 PID: 13957 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.431911][T13957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.433297][T13957] Call trace: [ 546.433737][T13957] dump_backtrace+0x0/0x43c [ 546.434358][T13957] show_stack+0x2c/0x3c [ 546.434934][T13957] __dump_stack+0x30/0x40 [ 546.435551][T13957] dump_stack_lvl+0xf8/0x160 [ 546.436188][T13957] dump_stack+0x1c/0x5c [ 546.436767][T13957] should_fail+0x3c0/0x51c [ 546.437385][T13957] __should_failslab+0xbc/0x10c [ 546.438103][T13957] should_failslab+0x10/0x28 [ 546.438781][T13957] slab_pre_alloc_hook+0x64/0xec [ 546.439511][T13957] __kmalloc_node+0xb8/0x520 [ 546.440146][T13957] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.440879][T13957] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.441676][T13957] nbd_start_device+0x14c/0xb40 [ 546.442340][T13957] nbd_ioctl+0x514/0xc50 [ 546.442927][T13957] blkdev_ioctl+0x5f8/0xbb8 [ 546.443558][T13957] block_ioctl+0xa4/0x118 [ 546.444174][T13957] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.444850][T13957] invoke_syscall+0x98/0x2b8 [ 546.445479][T13957] el0_svc_common+0x138/0x258 [ 546.446092][T13957] do_el0_svc+0x58/0x14c [ 546.446663][T13957] el0_svc+0x78/0x1e0 [ 546.447201][T13957] el0t_64_sync_handler+0xcc/0xe4 [ 546.447937][T13957] el0t_64_sync+0x1a0/0x1a4 [ 546.448704][T13957] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.451090][T13958] block nbd0: shutting down sockets [ 546.619103][T13961] FAULT_INJECTION: forcing a failure. [ 546.619103][T13961] name failslab, interval 1, probability 0, space 0, times 0 [ 546.621205][T13961] CPU: 0 PID: 13961 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.622459][T13961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.623958][T13961] Call trace: [ 546.624491][T13961] dump_backtrace+0x0/0x43c [ 546.625132][T13961] show_stack+0x2c/0x3c [ 546.625784][T13961] __dump_stack+0x30/0x40 [ 546.626386][T13961] dump_stack_lvl+0xf8/0x160 [ 546.627050][T13961] dump_stack+0x1c/0x5c [ 546.627690][T13961] should_fail+0x3c0/0x51c [ 546.628351][T13961] __should_failslab+0xbc/0x10c [ 546.629035][T13961] should_failslab+0x10/0x28 [ 546.629668][T13961] slab_pre_alloc_hook+0x64/0xec [ 546.630391][T13961] __kmalloc_node+0xb8/0x520 [ 546.631123][T13961] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.631891][T13961] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.632703][T13961] nbd_start_device+0x14c/0xb40 [ 546.633409][T13961] nbd_ioctl+0x514/0xc50 [ 546.633997][T13961] blkdev_ioctl+0x5f8/0xbb8 [ 546.634642][T13961] block_ioctl+0xa4/0x118 [ 546.635278][T13961] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.635979][T13961] invoke_syscall+0x98/0x2b8 [ 546.636641][T13961] el0_svc_common+0x138/0x258 [ 546.637332][T13961] do_el0_svc+0x58/0x14c [ 546.637937][T13961] el0_svc+0x78/0x1e0 [ 546.638502][T13961] el0t_64_sync_handler+0xcc/0xe4 [ 546.639219][T13961] el0t_64_sync+0x1a0/0x1a4 [ 546.639946][T13961] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.642762][T13960] block nbd0: shutting down sockets [ 546.769047][T13963] FAULT_INJECTION: forcing a failure. [ 546.769047][T13963] name failslab, interval 1, probability 0, space 0, times 0 [ 546.770815][T13963] CPU: 0 PID: 13963 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.771953][T13963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.773315][T13963] Call trace: [ 546.773795][T13963] dump_backtrace+0x0/0x43c [ 546.774418][T13963] show_stack+0x2c/0x3c [ 546.774983][T13963] __dump_stack+0x30/0x40 [ 546.775609][T13963] dump_stack_lvl+0xf8/0x160 [ 546.776276][T13963] dump_stack+0x1c/0x5c [ 546.776888][T13963] should_fail+0x3c0/0x51c [ 546.777529][T13963] __should_failslab+0xbc/0x10c [ 546.778324][T13963] should_failslab+0x10/0x28 [ 546.778975][T13963] slab_pre_alloc_hook+0x64/0xec [ 546.779728][T13963] __kmalloc_node+0xb8/0x520 [ 546.780394][T13963] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.781195][T13963] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.781933][T13963] nbd_start_device+0x14c/0xb40 [ 546.782608][T13963] nbd_ioctl+0x514/0xc50 [ 546.783187][T13963] blkdev_ioctl+0x5f8/0xbb8 [ 546.783852][T13963] block_ioctl+0xa4/0x118 [ 546.784483][T13963] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.785230][T13963] invoke_syscall+0x98/0x2b8 [ 546.785882][T13963] el0_svc_common+0x138/0x258 [ 546.786561][T13963] do_el0_svc+0x58/0x14c [ 546.787221][T13963] el0_svc+0x78/0x1e0 [ 546.787849][T13963] el0t_64_sync_handler+0xcc/0xe4 [ 546.788594][T13963] el0t_64_sync+0x1a0/0x1a4 [ 546.789721][T13963] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.792123][T13964] block nbd0: shutting down sockets [ 546.919050][T13966] FAULT_INJECTION: forcing a failure. [ 546.919050][T13966] name failslab, interval 1, probability 0, space 0, times 0 [ 546.920993][T13966] CPU: 0 PID: 13966 Comm: syz-executor358 Not tainted syzkaller #0 [ 546.922160][T13966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 546.923535][T13966] Call trace: [ 546.924001][T13966] dump_backtrace+0x0/0x43c [ 546.924665][T13966] show_stack+0x2c/0x3c [ 546.925265][T13966] __dump_stack+0x30/0x40 [ 546.925884][T13966] dump_stack_lvl+0xf8/0x160 [ 546.926579][T13966] dump_stack+0x1c/0x5c [ 546.927131][T13966] should_fail+0x3c0/0x51c [ 546.927771][T13966] __should_failslab+0xbc/0x10c [ 546.928431][T13966] should_failslab+0x10/0x28 [ 546.929052][T13966] slab_pre_alloc_hook+0x64/0xec [ 546.929786][T13966] __kmalloc_node+0xb8/0x520 [ 546.930488][T13966] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 546.931269][T13966] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 546.932113][T13966] nbd_start_device+0x14c/0xb40 [ 546.932738][T13966] nbd_ioctl+0x514/0xc50 [ 546.933271][T13966] blkdev_ioctl+0x5f8/0xbb8 [ 546.933916][T13966] block_ioctl+0xa4/0x118 [ 546.934546][T13966] __arm64_sys_ioctl+0x14c/0x1c8 [ 546.935281][T13966] invoke_syscall+0x98/0x2b8 [ 546.935924][T13966] el0_svc_common+0x138/0x258 [ 546.936596][T13966] do_el0_svc+0x58/0x14c [ 546.937194][T13966] el0_svc+0x78/0x1e0 [ 546.937795][T13966] el0t_64_sync_handler+0xcc/0xe4 [ 546.938526][T13966] el0t_64_sync+0x1a0/0x1a4 [ 546.939278][T13966] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 546.942082][T13967] block nbd0: shutting down sockets [ 547.069107][T13969] FAULT_INJECTION: forcing a failure. [ 547.069107][T13969] name failslab, interval 1, probability 0, space 0, times 0 [ 547.071008][T13969] CPU: 1 PID: 13969 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.072145][T13969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.073580][T13969] Call trace: [ 547.074031][T13969] dump_backtrace+0x0/0x43c [ 547.074640][T13969] show_stack+0x2c/0x3c [ 547.075203][T13969] __dump_stack+0x30/0x40 [ 547.075809][T13969] dump_stack_lvl+0xf8/0x160 [ 547.076444][T13969] dump_stack+0x1c/0x5c [ 547.077041][T13969] should_fail+0x3c0/0x51c [ 547.077721][T13969] __should_failslab+0xbc/0x10c [ 547.078419][T13969] should_failslab+0x10/0x28 [ 547.079115][T13969] slab_pre_alloc_hook+0x64/0xec [ 547.079873][T13969] __kmalloc_node+0xb8/0x520 [ 547.080543][T13969] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.081325][T13969] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.082101][T13969] nbd_start_device+0x14c/0xb40 [ 547.082814][T13969] nbd_ioctl+0x514/0xc50 [ 547.083419][T13969] blkdev_ioctl+0x5f8/0xbb8 [ 547.084058][T13969] block_ioctl+0xa4/0x118 [ 547.084678][T13969] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.085438][T13969] invoke_syscall+0x98/0x2b8 [ 547.086102][T13969] el0_svc_common+0x138/0x258 [ 547.086746][T13969] do_el0_svc+0x58/0x14c [ 547.087298][T13969] el0_svc+0x78/0x1e0 [ 547.087830][T13969] el0t_64_sync_handler+0xcc/0xe4 [ 547.088530][T13969] el0t_64_sync+0x1a0/0x1a4 [ 547.089303][T13969] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.091752][T13970] block nbd0: shutting down sockets [ 547.229049][T13972] FAULT_INJECTION: forcing a failure. [ 547.229049][T13972] name failslab, interval 1, probability 0, space 0, times 0 [ 547.231035][T13972] CPU: 0 PID: 13972 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.232154][T13972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.233608][T13972] Call trace: [ 547.234046][T13972] dump_backtrace+0x0/0x43c [ 547.234635][T13972] show_stack+0x2c/0x3c [ 547.235202][T13972] __dump_stack+0x30/0x40 [ 547.235811][T13972] dump_stack_lvl+0xf8/0x160 [ 547.236510][T13972] dump_stack+0x1c/0x5c [ 547.237176][T13972] should_fail+0x3c0/0x51c [ 547.237839][T13972] __should_failslab+0xbc/0x10c [ 547.238553][T13972] should_failslab+0x10/0x28 [ 547.239246][T13972] slab_pre_alloc_hook+0x64/0xec [ 547.240000][T13972] __kmalloc_node+0xb8/0x520 [ 547.240650][T13972] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.241456][T13972] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.242243][T13972] nbd_start_device+0x14c/0xb40 [ 547.242958][T13972] nbd_ioctl+0x514/0xc50 [ 547.243570][T13972] blkdev_ioctl+0x5f8/0xbb8 [ 547.244237][T13972] block_ioctl+0xa4/0x118 [ 547.244885][T13972] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.245627][T13972] invoke_syscall+0x98/0x2b8 [ 547.246293][T13972] el0_svc_common+0x138/0x258 [ 547.246987][T13972] do_el0_svc+0x58/0x14c [ 547.247583][T13972] el0_svc+0x78/0x1e0 [ 547.248182][T13972] el0t_64_sync_handler+0xcc/0xe4 [ 547.248909][T13972] el0t_64_sync+0x1a0/0x1a4 [ 547.250028][T13972] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.252477][T13973] block nbd0: shutting down sockets [ 547.389104][T13975] FAULT_INJECTION: forcing a failure. [ 547.389104][T13975] name failslab, interval 1, probability 0, space 0, times 0 [ 547.391013][T13975] CPU: 1 PID: 13975 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.392192][T13975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.393532][T13975] Call trace: [ 547.394027][T13975] dump_backtrace+0x0/0x43c [ 547.394660][T13975] show_stack+0x2c/0x3c [ 547.395219][T13975] __dump_stack+0x30/0x40 [ 547.395825][T13975] dump_stack_lvl+0xf8/0x160 [ 547.396469][T13975] dump_stack+0x1c/0x5c [ 547.397044][T13975] should_fail+0x3c0/0x51c [ 547.397689][T13975] __should_failslab+0xbc/0x10c [ 547.398432][T13975] should_failslab+0x10/0x28 [ 547.399079][T13975] slab_pre_alloc_hook+0x64/0xec [ 547.399799][T13975] __kmalloc_node+0xb8/0x520 [ 547.400476][T13975] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.401220][T13975] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.402031][T13975] nbd_start_device+0x14c/0xb40 [ 547.402737][T13975] nbd_ioctl+0x514/0xc50 [ 547.403365][T13975] blkdev_ioctl+0x5f8/0xbb8 [ 547.404024][T13975] block_ioctl+0xa4/0x118 [ 547.404683][T13975] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.405450][T13975] invoke_syscall+0x98/0x2b8 [ 547.406062][T13975] el0_svc_common+0x138/0x258 [ 547.406739][T13975] do_el0_svc+0x58/0x14c [ 547.407321][T13975] el0_svc+0x78/0x1e0 [ 547.407887][T13975] el0t_64_sync_handler+0xcc/0xe4 [ 547.408651][T13975] el0t_64_sync+0x1a0/0x1a4 [ 547.409382][T13975] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.411755][T13976] block nbd0: shutting down sockets [ 547.539049][T13978] FAULT_INJECTION: forcing a failure. [ 547.539049][T13978] name failslab, interval 1, probability 0, space 0, times 0 [ 547.540965][T13978] CPU: 1 PID: 13978 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.542062][T13978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.543470][T13978] Call trace: [ 547.543883][T13978] dump_backtrace+0x0/0x43c [ 547.544525][T13978] show_stack+0x2c/0x3c [ 547.545094][T13978] __dump_stack+0x30/0x40 [ 547.545717][T13978] dump_stack_lvl+0xf8/0x160 [ 547.546349][T13978] dump_stack+0x1c/0x5c [ 547.546918][T13978] should_fail+0x3c0/0x51c [ 547.547527][T13978] __should_failslab+0xbc/0x10c [ 547.548214][T13978] should_failslab+0x10/0x28 [ 547.548872][T13978] slab_pre_alloc_hook+0x64/0xec [ 547.549640][T13978] __kmalloc_node+0xb8/0x520 [ 547.550290][T13978] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.551047][T13978] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.551856][T13978] nbd_start_device+0x14c/0xb40 [ 547.552581][T13978] nbd_ioctl+0x514/0xc50 [ 547.553230][T13978] blkdev_ioctl+0x5f8/0xbb8 [ 547.553865][T13978] block_ioctl+0xa4/0x118 [ 547.554479][T13978] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.555202][T13978] invoke_syscall+0x98/0x2b8 [ 547.555843][T13978] el0_svc_common+0x138/0x258 [ 547.556639][T13978] do_el0_svc+0x58/0x14c [ 547.557305][T13978] el0_svc+0x78/0x1e0 [ 547.557927][T13978] el0t_64_sync_handler+0xcc/0xe4 [ 547.558677][T13978] el0t_64_sync+0x1a0/0x1a4 [ 547.559542][T13978] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.562072][T13979] block nbd0: shutting down sockets [ 547.709076][T13982] FAULT_INJECTION: forcing a failure. [ 547.709076][T13982] name failslab, interval 1, probability 0, space 0, times 0 [ 547.711213][T13982] CPU: 1 PID: 13982 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.712493][T13982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.714054][T13982] Call trace: [ 547.714581][T13982] dump_backtrace+0x0/0x43c [ 547.715284][T13982] show_stack+0x2c/0x3c [ 547.715955][T13982] __dump_stack+0x30/0x40 [ 547.716635][T13982] dump_stack_lvl+0xf8/0x160 [ 547.717347][T13982] dump_stack+0x1c/0x5c [ 547.717995][T13982] should_fail+0x3c0/0x51c [ 547.718622][T13982] __should_failslab+0xbc/0x10c [ 547.719320][T13982] should_failslab+0x10/0x28 [ 547.719982][T13982] slab_pre_alloc_hook+0x64/0xec [ 547.720723][T13982] __kmalloc_node+0xb8/0x520 [ 547.721378][T13982] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.722150][T13982] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.722919][T13982] nbd_start_device+0x14c/0xb40 [ 547.723591][T13982] nbd_ioctl+0x514/0xc50 [ 547.724258][T13982] blkdev_ioctl+0x5f8/0xbb8 [ 547.724908][T13982] block_ioctl+0xa4/0x118 [ 547.725567][T13982] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.726342][T13982] invoke_syscall+0x98/0x2b8 [ 547.727052][T13982] el0_svc_common+0x138/0x258 [ 547.727713][T13982] do_el0_svc+0x58/0x14c [ 547.728303][T13982] el0_svc+0x78/0x1e0 [ 547.728892][T13982] el0t_64_sync_handler+0xcc/0xe4 [ 547.729614][T13982] el0t_64_sync+0x1a0/0x1a4 [ 547.730328][T13982] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.732653][T13981] block nbd0: shutting down sockets [ 547.859055][T13984] FAULT_INJECTION: forcing a failure. [ 547.859055][T13984] name failslab, interval 1, probability 0, space 0, times 0 [ 547.860993][T13984] CPU: 1 PID: 13984 Comm: syz-executor358 Not tainted syzkaller #0 [ 547.862151][T13984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 547.863596][T13984] Call trace: [ 547.864021][T13984] dump_backtrace+0x0/0x43c [ 547.864611][T13984] show_stack+0x2c/0x3c [ 547.865178][T13984] __dump_stack+0x30/0x40 [ 547.865768][T13984] dump_stack_lvl+0xf8/0x160 [ 547.866447][T13984] dump_stack+0x1c/0x5c [ 547.867030][T13984] should_fail+0x3c0/0x51c [ 547.867731][T13984] __should_failslab+0xbc/0x10c [ 547.868501][T13984] should_failslab+0x10/0x28 [ 547.869165][T13984] slab_pre_alloc_hook+0x64/0xec [ 547.869891][T13984] __kmalloc_node+0xb8/0x520 [ 547.870542][T13984] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 547.871362][T13984] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 547.872243][T13984] nbd_start_device+0x14c/0xb40 [ 547.872968][T13984] nbd_ioctl+0x514/0xc50 [ 547.873581][T13984] blkdev_ioctl+0x5f8/0xbb8 [ 547.874274][T13984] block_ioctl+0xa4/0x118 [ 547.874925][T13984] __arm64_sys_ioctl+0x14c/0x1c8 [ 547.875614][T13984] invoke_syscall+0x98/0x2b8 [ 547.876325][T13984] el0_svc_common+0x138/0x258 [ 547.877035][T13984] do_el0_svc+0x58/0x14c [ 547.877614][T13984] el0_svc+0x78/0x1e0 [ 547.878218][T13984] el0t_64_sync_handler+0xcc/0xe4 [ 547.879045][T13984] el0t_64_sync+0x1a0/0x1a4 [ 547.879961][T13984] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 547.882432][T13985] block nbd0: shutting down sockets [ 548.009075][T13987] FAULT_INJECTION: forcing a failure. [ 548.009075][T13987] name failslab, interval 1, probability 0, space 0, times 0 [ 548.010975][T13987] CPU: 1 PID: 13987 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.012131][T13987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.013549][T13987] Call trace: [ 548.014000][T13987] dump_backtrace+0x0/0x43c [ 548.014595][T13987] show_stack+0x2c/0x3c [ 548.015222][T13987] __dump_stack+0x30/0x40 [ 548.015859][T13987] dump_stack_lvl+0xf8/0x160 [ 548.016461][T13987] dump_stack+0x1c/0x5c [ 548.017095][T13987] should_fail+0x3c0/0x51c [ 548.017748][T13987] __should_failslab+0xbc/0x10c [ 548.018488][T13987] should_failslab+0x10/0x28 [ 548.019162][T13987] slab_pre_alloc_hook+0x64/0xec [ 548.019834][T13987] __kmalloc_node+0xb8/0x520 [ 548.020490][T13987] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.021288][T13987] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.022176][T13987] nbd_start_device+0x14c/0xb40 [ 548.022860][T13987] nbd_ioctl+0x514/0xc50 [ 548.023480][T13987] blkdev_ioctl+0x5f8/0xbb8 [ 548.024165][T13987] block_ioctl+0xa4/0x118 [ 548.024806][T13987] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.025607][T13987] invoke_syscall+0x98/0x2b8 [ 548.026293][T13987] el0_svc_common+0x138/0x258 [ 548.026982][T13987] do_el0_svc+0x58/0x14c [ 548.027571][T13987] el0_svc+0x78/0x1e0 [ 548.028143][T13987] el0t_64_sync_handler+0xcc/0xe4 [ 548.028860][T13987] el0t_64_sync+0x1a0/0x1a4 [ 548.029604][T13987] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.032062][T13988] block nbd0: shutting down sockets [ 548.169058][T13990] FAULT_INJECTION: forcing a failure. [ 548.169058][T13990] name failslab, interval 1, probability 0, space 0, times 0 [ 548.170985][T13990] CPU: 1 PID: 13990 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.172149][T13990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.173628][T13990] Call trace: [ 548.174136][T13990] dump_backtrace+0x0/0x43c [ 548.174765][T13990] show_stack+0x2c/0x3c [ 548.175429][T13990] __dump_stack+0x30/0x40 [ 548.176072][T13990] dump_stack_lvl+0xf8/0x160 [ 548.176745][T13990] dump_stack+0x1c/0x5c [ 548.177343][T13990] should_fail+0x3c0/0x51c [ 548.177993][T13990] __should_failslab+0xbc/0x10c [ 548.178722][T13990] should_failslab+0x10/0x28 [ 548.179384][T13990] slab_pre_alloc_hook+0x64/0xec [ 548.180073][T13990] __kmalloc_node+0xb8/0x520 [ 548.180781][T13990] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.181561][T13990] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.182376][T13990] nbd_start_device+0x14c/0xb40 [ 548.183100][T13990] nbd_ioctl+0x514/0xc50 [ 548.183713][T13990] blkdev_ioctl+0x5f8/0xbb8 [ 548.184386][T13990] block_ioctl+0xa4/0x118 [ 548.185060][T13990] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.185800][T13990] invoke_syscall+0x98/0x2b8 [ 548.186483][T13990] el0_svc_common+0x138/0x258 [ 548.187182][T13990] do_el0_svc+0x58/0x14c [ 548.187824][T13990] el0_svc+0x78/0x1e0 [ 548.188375][T13990] el0t_64_sync_handler+0xcc/0xe4 [ 548.189064][T13990] el0t_64_sync+0x1a0/0x1a4 [ 548.189813][T13990] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.192117][T13991] block nbd0: shutting down sockets [ 548.319114][T13993] FAULT_INJECTION: forcing a failure. [ 548.319114][T13993] name failslab, interval 1, probability 0, space 0, times 0 [ 548.320931][T13993] CPU: 1 PID: 13993 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.322013][T13993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.323317][T13993] Call trace: [ 548.323756][T13993] dump_backtrace+0x0/0x43c [ 548.324418][T13993] show_stack+0x2c/0x3c [ 548.325027][T13993] __dump_stack+0x30/0x40 [ 548.325639][T13993] dump_stack_lvl+0xf8/0x160 [ 548.326289][T13993] dump_stack+0x1c/0x5c [ 548.326901][T13993] should_fail+0x3c0/0x51c [ 548.327555][T13993] __should_failslab+0xbc/0x10c [ 548.328316][T13993] should_failslab+0x10/0x28 [ 548.328970][T13993] slab_pre_alloc_hook+0x64/0xec [ 548.329674][T13993] __kmalloc_node+0xb8/0x520 [ 548.330316][T13993] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.331099][T13993] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.331987][T13993] nbd_start_device+0x14c/0xb40 [ 548.332682][T13993] nbd_ioctl+0x514/0xc50 [ 548.333325][T13993] blkdev_ioctl+0x5f8/0xbb8 [ 548.333957][T13993] block_ioctl+0xa4/0x118 [ 548.334558][T13993] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.335255][T13993] invoke_syscall+0x98/0x2b8 [ 548.335894][T13993] el0_svc_common+0x138/0x258 [ 548.336574][T13993] do_el0_svc+0x58/0x14c [ 548.337167][T13993] el0_svc+0x78/0x1e0 [ 548.337771][T13993] el0t_64_sync_handler+0xcc/0xe4 [ 548.338442][T13993] el0t_64_sync+0x1a0/0x1a4 [ 548.339221][T13993] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.341645][T13994] block nbd0: shutting down sockets [ 548.469054][T13996] FAULT_INJECTION: forcing a failure. [ 548.469054][T13996] name failslab, interval 1, probability 0, space 0, times 0 [ 548.470978][T13996] CPU: 1 PID: 13996 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.472053][T13996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.473475][T13996] Call trace: [ 548.473928][T13996] dump_backtrace+0x0/0x43c [ 548.474547][T13996] show_stack+0x2c/0x3c [ 548.475151][T13996] __dump_stack+0x30/0x40 [ 548.475771][T13996] dump_stack_lvl+0xf8/0x160 [ 548.476462][T13996] dump_stack+0x1c/0x5c [ 548.477064][T13996] should_fail+0x3c0/0x51c [ 548.477733][T13996] __should_failslab+0xbc/0x10c [ 548.478399][T13996] should_failslab+0x10/0x28 [ 548.479037][T13996] slab_pre_alloc_hook+0x64/0xec [ 548.479766][T13996] __kmalloc_node+0xb8/0x520 [ 548.480472][T13996] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.481211][T13996] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.482000][T13996] nbd_start_device+0x14c/0xb40 [ 548.482709][T13996] nbd_ioctl+0x514/0xc50 [ 548.483285][T13996] blkdev_ioctl+0x5f8/0xbb8 [ 548.483911][T13996] block_ioctl+0xa4/0x118 [ 548.484560][T13996] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.485280][T13996] invoke_syscall+0x98/0x2b8 [ 548.485944][T13996] el0_svc_common+0x138/0x258 [ 548.486630][T13996] do_el0_svc+0x58/0x14c [ 548.487200][T13996] el0_svc+0x78/0x1e0 [ 548.487721][T13996] el0t_64_sync_handler+0xcc/0xe4 [ 548.488406][T13996] el0t_64_sync+0x1a0/0x1a4 [ 548.489100][T13996] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.492018][T13997] block nbd0: shutting down sockets [ 548.629261][T13999] FAULT_INJECTION: forcing a failure. [ 548.629261][T13999] name failslab, interval 1, probability 0, space 0, times 0 [ 548.631223][T13999] CPU: 1 PID: 13999 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.632382][T13999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.633810][T13999] Call trace: [ 548.634270][T13999] dump_backtrace+0x0/0x43c [ 548.634939][T13999] show_stack+0x2c/0x3c [ 548.635496][T13999] __dump_stack+0x30/0x40 [ 548.636129][T13999] dump_stack_lvl+0xf8/0x160 [ 548.636785][T13999] dump_stack+0x1c/0x5c [ 548.637370][T13999] should_fail+0x3c0/0x51c [ 548.637996][T13999] __should_failslab+0xbc/0x10c [ 548.638670][T13999] should_failslab+0x10/0x28 [ 548.639304][T13999] slab_pre_alloc_hook+0x64/0xec [ 548.639977][T13999] __kmalloc_node+0xb8/0x520 [ 548.640665][T13999] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.641481][T13999] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.642322][T13999] nbd_start_device+0x14c/0xb40 [ 548.642978][T13999] nbd_ioctl+0x514/0xc50 [ 548.643601][T13999] blkdev_ioctl+0x5f8/0xbb8 [ 548.644254][T13999] block_ioctl+0xa4/0x118 [ 548.644866][T13999] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.645568][T13999] invoke_syscall+0x98/0x2b8 [ 548.646270][T13999] el0_svc_common+0x138/0x258 [ 548.646962][T13999] do_el0_svc+0x58/0x14c [ 548.647597][T13999] el0_svc+0x78/0x1e0 [ 548.648125][T13999] el0t_64_sync_handler+0xcc/0xe4 [ 548.648832][T13999] el0t_64_sync+0x1a0/0x1a4 [ 548.649520][T13999] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.651829][T14000] block nbd0: shutting down sockets [ 548.809060][T14003] FAULT_INJECTION: forcing a failure. [ 548.809060][T14003] name failslab, interval 1, probability 0, space 0, times 0 [ 548.810964][T14003] CPU: 0 PID: 14003 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.812094][T14003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.813557][T14003] Call trace: [ 548.813988][T14003] dump_backtrace+0x0/0x43c [ 548.814698][T14003] show_stack+0x2c/0x3c [ 548.815273][T14003] __dump_stack+0x30/0x40 [ 548.815902][T14003] dump_stack_lvl+0xf8/0x160 [ 548.816559][T14003] dump_stack+0x1c/0x5c [ 548.817167][T14003] should_fail+0x3c0/0x51c [ 548.817834][T14003] __should_failslab+0xbc/0x10c [ 548.818561][T14003] should_failslab+0x10/0x28 [ 548.819290][T14003] slab_pre_alloc_hook+0x64/0xec [ 548.820046][T14003] __kmalloc_node+0xb8/0x520 [ 548.820800][T14003] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 548.821574][T14003] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 548.822479][T14003] nbd_start_device+0x14c/0xb40 [ 548.823195][T14003] nbd_ioctl+0x514/0xc50 [ 548.823818][T14003] blkdev_ioctl+0x5f8/0xbb8 [ 548.824475][T14003] block_ioctl+0xa4/0x118 [ 548.825140][T14003] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.825877][T14003] invoke_syscall+0x98/0x2b8 [ 548.826587][T14003] el0_svc_common+0x138/0x258 [ 548.827262][T14003] do_el0_svc+0x58/0x14c [ 548.827926][T14003] el0_svc+0x78/0x1e0 [ 548.828569][T14003] el0t_64_sync_handler+0xcc/0xe4 [ 548.829348][T14003] el0t_64_sync+0x1a0/0x1a4 [ 548.830535][T14003] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 548.833048][T14002] block nbd0: shutting down sockets [ 548.947114][T14006] block nbd0: Device being setup by another task [ 548.948185][T14005] FAULT_INJECTION: forcing a failure. [ 548.948185][T14005] name failslab, interval 1, probability 0, space 0, times 0 [ 548.950239][T14005] CPU: 1 PID: 14005 Comm: syz-executor358 Not tainted syzkaller #0 [ 548.951368][T14005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 548.952858][T14005] Call trace: [ 548.953340][T14005] dump_backtrace+0x0/0x43c [ 548.954003][T14005] show_stack+0x2c/0x3c [ 548.954620][T14005] __dump_stack+0x30/0x40 [ 548.955320][T14005] dump_stack_lvl+0xf8/0x160 [ 548.956049][T14005] dump_stack+0x1c/0x5c [ 548.956664][T14005] should_fail+0x3c0/0x51c [ 548.957357][T14005] __should_failslab+0xbc/0x10c [ 548.958099][T14005] should_failslab+0x10/0x28 [ 548.958786][T14005] slab_pre_alloc_hook+0x64/0xec [ 548.959507][T14005] kmem_cache_alloc+0x94/0x3e4 [ 548.960204][T14005] new_inode_pseudo+0x10c/0x1fc [ 548.960894][T14005] new_inode+0x38/0x174 [ 548.961571][T14005] debugfs_create_dir+0xec/0x3f4 [ 548.962365][T14005] nbd_start_device+0x3c8/0xb40 [ 548.963079][T14005] nbd_ioctl+0x514/0xc50 [ 548.963674][T14005] blkdev_ioctl+0x5f8/0xbb8 [ 548.964296][T14005] block_ioctl+0xa4/0x118 [ 548.964884][T14005] __arm64_sys_ioctl+0x14c/0x1c8 [ 548.965719][T14005] invoke_syscall+0x98/0x2b8 [ 548.966443][T14005] el0_svc_common+0x138/0x258 [ 548.967172][T14005] do_el0_svc+0x58/0x14c [ 548.967812][T14005] el0_svc+0x78/0x1e0 [ 548.968430][T14005] el0t_64_sync_handler+0xcc/0xe4 [ 548.969178][T14005] el0t_64_sync+0x1a0/0x1a4 [ 548.969994][T14005] debugfs: out of free dentries, can not create directory 'nbd0' [ 548.971024][T14005] block nbd0: Failed to create debugfs dir for 'nbd0' [ 548.996226][T14006] block nbd0: shutting down sockets [ 549.119117][T14008] FAULT_INJECTION: forcing a failure. [ 549.119117][T14008] name failslab, interval 1, probability 0, space 0, times 0 [ 549.120978][T14008] CPU: 0 PID: 14008 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.122067][T14008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.123515][T14008] Call trace: [ 549.123964][T14008] dump_backtrace+0x0/0x43c [ 549.124589][T14008] show_stack+0x2c/0x3c [ 549.125164][T14008] __dump_stack+0x30/0x40 [ 549.125786][T14008] dump_stack_lvl+0xf8/0x160 [ 549.126483][T14008] dump_stack+0x1c/0x5c [ 549.127068][T14008] should_fail+0x3c0/0x51c [ 549.127701][T14008] __should_failslab+0xbc/0x10c [ 549.128469][T14008] should_failslab+0x10/0x28 [ 549.129165][T14008] slab_pre_alloc_hook+0x64/0xec [ 549.129865][T14008] __kmalloc_node+0xb8/0x520 [ 549.130532][T14008] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.131277][T14008] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.132082][T14008] nbd_start_device+0x14c/0xb40 [ 549.132803][T14008] nbd_ioctl+0x514/0xc50 [ 549.133427][T14008] blkdev_ioctl+0x5f8/0xbb8 [ 549.134042][T14008] block_ioctl+0xa4/0x118 [ 549.134635][T14008] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.135336][T14008] invoke_syscall+0x98/0x2b8 [ 549.136002][T14008] el0_svc_common+0x138/0x258 [ 549.136647][T14008] do_el0_svc+0x58/0x14c [ 549.137263][T14008] el0_svc+0x78/0x1e0 [ 549.137882][T14008] el0t_64_sync_handler+0xcc/0xe4 [ 549.138615][T14008] el0t_64_sync+0x1a0/0x1a4 [ 549.139775][T14008] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.142108][T14009] block nbd0: shutting down sockets [ 549.269616][T14011] FAULT_INJECTION: forcing a failure. [ 549.269616][T14011] name failslab, interval 1, probability 0, space 0, times 0 [ 549.271728][T14011] CPU: 1 PID: 14011 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.272896][T14011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.274416][T14011] Call trace: [ 549.274901][T14011] dump_backtrace+0x0/0x43c [ 549.275525][T14011] show_stack+0x2c/0x3c [ 549.276070][T14011] __dump_stack+0x30/0x40 [ 549.276672][T14011] dump_stack_lvl+0xf8/0x160 [ 549.277412][T14011] dump_stack+0x1c/0x5c [ 549.278015][T14011] should_fail+0x3c0/0x51c [ 549.278654][T14011] __should_failslab+0xbc/0x10c [ 549.279406][T14011] should_failslab+0x10/0x28 [ 549.280067][T14011] slab_pre_alloc_hook+0x64/0xec [ 549.280791][T14011] __kmalloc_node+0xb8/0x520 [ 549.281491][T14011] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.282261][T14011] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.283112][T14011] nbd_start_device+0x14c/0xb40 [ 549.283826][T14011] nbd_ioctl+0x514/0xc50 [ 549.284429][T14011] blkdev_ioctl+0x5f8/0xbb8 [ 549.285104][T14011] block_ioctl+0xa4/0x118 [ 549.285724][T14011] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.286461][T14011] invoke_syscall+0x98/0x2b8 [ 549.287125][T14011] el0_svc_common+0x138/0x258 [ 549.287764][T14011] do_el0_svc+0x58/0x14c [ 549.288355][T14011] el0_svc+0x78/0x1e0 [ 549.288922][T14011] el0t_64_sync_handler+0xcc/0xe4 [ 549.289660][T14011] el0t_64_sync+0x1a0/0x1a4 [ 549.290673][T14011] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.293631][T14012] block nbd0: shutting down sockets [ 549.399118][T14014] FAULT_INJECTION: forcing a failure. [ 549.399118][T14014] name failslab, interval 1, probability 0, space 0, times 0 [ 549.401168][T14014] CPU: 1 PID: 14014 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.402279][T14014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.403742][T14014] Call trace: [ 549.404174][T14014] dump_backtrace+0x0/0x43c [ 549.404823][T14014] show_stack+0x2c/0x3c [ 549.405406][T14014] __dump_stack+0x30/0x40 [ 549.406014][T14014] dump_stack_lvl+0xf8/0x160 [ 549.406726][T14014] dump_stack+0x1c/0x5c [ 549.407299][T14014] should_fail+0x3c0/0x51c [ 549.407936][T14014] __should_failslab+0xbc/0x10c [ 549.408642][T14014] should_failslab+0x10/0x28 [ 549.409342][T14014] slab_pre_alloc_hook+0x64/0xec [ 549.410135][T14014] __kmalloc_node+0xb8/0x520 [ 549.410813][T14014] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.411605][T14014] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.412478][T14014] nbd_start_device+0x14c/0xb40 [ 549.413147][T14014] nbd_ioctl+0x514/0xc50 [ 549.413751][T14014] blkdev_ioctl+0x5f8/0xbb8 [ 549.414383][T14014] block_ioctl+0xa4/0x118 [ 549.415022][T14014] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.415700][T14014] invoke_syscall+0x98/0x2b8 [ 549.416371][T14014] el0_svc_common+0x138/0x258 [ 549.417041][T14014] do_el0_svc+0x58/0x14c [ 549.417644][T14014] el0_svc+0x78/0x1e0 [ 549.418250][T14014] el0t_64_sync_handler+0xcc/0xe4 [ 549.418942][T14014] el0t_64_sync+0x1a0/0x1a4 [ 549.419740][T14014] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.422205][T14015] block nbd0: shutting down sockets [ 549.559056][T14017] FAULT_INJECTION: forcing a failure. [ 549.559056][T14017] name failslab, interval 1, probability 0, space 0, times 0 [ 549.560863][T14017] CPU: 1 PID: 14017 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.561965][T14017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.563377][T14017] Call trace: [ 549.563844][T14017] dump_backtrace+0x0/0x43c [ 549.564449][T14017] show_stack+0x2c/0x3c [ 549.565081][T14017] __dump_stack+0x30/0x40 [ 549.565686][T14017] dump_stack_lvl+0xf8/0x160 [ 549.566369][T14017] dump_stack+0x1c/0x5c [ 549.566971][T14017] should_fail+0x3c0/0x51c [ 549.567650][T14017] __should_failslab+0xbc/0x10c [ 549.568347][T14017] should_failslab+0x10/0x28 [ 549.569017][T14017] slab_pre_alloc_hook+0x64/0xec [ 549.569776][T14017] __kmalloc_node+0xb8/0x520 [ 549.570422][T14017] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.571191][T14017] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.571980][T14017] nbd_start_device+0x14c/0xb40 [ 549.572661][T14017] nbd_ioctl+0x514/0xc50 [ 549.573287][T14017] blkdev_ioctl+0x5f8/0xbb8 [ 549.573976][T14017] block_ioctl+0xa4/0x118 [ 549.574584][T14017] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.575276][T14017] invoke_syscall+0x98/0x2b8 [ 549.575927][T14017] el0_svc_common+0x138/0x258 [ 549.576620][T14017] do_el0_svc+0x58/0x14c [ 549.577219][T14017] el0_svc+0x78/0x1e0 [ 549.577786][T14017] el0t_64_sync_handler+0xcc/0xe4 [ 549.578527][T14017] el0t_64_sync+0x1a0/0x1a4 [ 549.579272][T14017] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.581698][T14018] block nbd0: shutting down sockets [ 549.709058][T14020] FAULT_INJECTION: forcing a failure. [ 549.709058][T14020] name failslab, interval 1, probability 0, space 0, times 0 [ 549.711042][T14020] CPU: 1 PID: 14020 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.712184][T14020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.713622][T14020] Call trace: [ 549.714081][T14020] dump_backtrace+0x0/0x43c [ 549.714692][T14020] show_stack+0x2c/0x3c [ 549.715258][T14020] __dump_stack+0x30/0x40 [ 549.715895][T14020] dump_stack_lvl+0xf8/0x160 [ 549.716636][T14020] dump_stack+0x1c/0x5c [ 549.717268][T14020] should_fail+0x3c0/0x51c [ 549.717930][T14020] __should_failslab+0xbc/0x10c [ 549.718609][T14020] should_failslab+0x10/0x28 [ 549.719275][T14020] slab_pre_alloc_hook+0x64/0xec [ 549.720004][T14020] __kmalloc_node+0xb8/0x520 [ 549.720646][T14020] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.721435][T14020] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.722266][T14020] nbd_start_device+0x14c/0xb40 [ 549.722900][T14020] nbd_ioctl+0x514/0xc50 [ 549.723525][T14020] blkdev_ioctl+0x5f8/0xbb8 [ 549.724182][T14020] block_ioctl+0xa4/0x118 [ 549.724793][T14020] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.725562][T14020] invoke_syscall+0x98/0x2b8 [ 549.726356][T14020] el0_svc_common+0x138/0x258 [ 549.727137][T14020] do_el0_svc+0x58/0x14c [ 549.727807][T14020] el0_svc+0x78/0x1e0 [ 549.728442][T14020] el0t_64_sync_handler+0xcc/0xe4 [ 549.729245][T14020] el0t_64_sync+0x1a0/0x1a4 [ 549.730048][T14020] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.732614][T14021] block nbd0: shutting down sockets [ 549.879066][T14024] FAULT_INJECTION: forcing a failure. [ 549.879066][T14024] name failslab, interval 1, probability 0, space 0, times 0 [ 549.881090][T14024] CPU: 0 PID: 14024 Comm: syz-executor358 Not tainted syzkaller #0 [ 549.882237][T14024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 549.883651][T14024] Call trace: [ 549.884098][T14024] dump_backtrace+0x0/0x43c [ 549.884790][T14024] show_stack+0x2c/0x3c [ 549.885402][T14024] __dump_stack+0x30/0x40 [ 549.886019][T14024] dump_stack_lvl+0xf8/0x160 [ 549.886690][T14024] dump_stack+0x1c/0x5c [ 549.887308][T14024] should_fail+0x3c0/0x51c [ 549.888002][T14024] __should_failslab+0xbc/0x10c [ 549.888754][T14024] should_failslab+0x10/0x28 [ 549.889421][T14024] slab_pre_alloc_hook+0x64/0xec [ 549.890138][T14024] __kmalloc_node+0xb8/0x520 [ 549.890813][T14024] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 549.891607][T14024] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 549.892448][T14024] nbd_start_device+0x14c/0xb40 [ 549.893138][T14024] nbd_ioctl+0x514/0xc50 [ 549.893785][T14024] blkdev_ioctl+0x5f8/0xbb8 [ 549.894444][T14024] block_ioctl+0xa4/0x118 [ 549.895068][T14024] __arm64_sys_ioctl+0x14c/0x1c8 [ 549.895822][T14024] invoke_syscall+0x98/0x2b8 [ 549.896566][T14024] el0_svc_common+0x138/0x258 [ 549.897261][T14024] do_el0_svc+0x58/0x14c [ 549.897944][T14024] el0_svc+0x78/0x1e0 [ 549.898545][T14024] el0t_64_sync_handler+0xcc/0xe4 [ 549.899286][T14024] el0t_64_sync+0x1a0/0x1a4 [ 549.900022][T14024] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 549.902464][T14023] block nbd0: shutting down sockets [ 550.029057][T14026] FAULT_INJECTION: forcing a failure. [ 550.029057][T14026] name failslab, interval 1, probability 0, space 0, times 0 [ 550.030996][T14026] CPU: 0 PID: 14026 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.032115][T14026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.033357][T14026] Call trace: [ 550.033802][T14026] dump_backtrace+0x0/0x43c [ 550.034473][T14026] show_stack+0x2c/0x3c [ 550.035062][T14026] __dump_stack+0x30/0x40 [ 550.035634][T14026] dump_stack_lvl+0xf8/0x160 [ 550.036294][T14026] dump_stack+0x1c/0x5c [ 550.036851][T14026] should_fail+0x3c0/0x51c [ 550.037506][T14026] __should_failslab+0xbc/0x10c [ 550.038201][T14026] should_failslab+0x10/0x28 [ 550.038819][T14026] slab_pre_alloc_hook+0x64/0xec [ 550.039540][T14026] __kmalloc_node+0xb8/0x520 [ 550.040175][T14026] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.040961][T14026] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.041810][T14026] nbd_start_device+0x14c/0xb40 [ 550.042568][T14026] nbd_ioctl+0x514/0xc50 [ 550.043165][T14026] blkdev_ioctl+0x5f8/0xbb8 [ 550.043807][T14026] block_ioctl+0xa4/0x118 [ 550.044423][T14026] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.045135][T14026] invoke_syscall+0x98/0x2b8 [ 550.045834][T14026] el0_svc_common+0x138/0x258 [ 550.046535][T14026] do_el0_svc+0x58/0x14c [ 550.047196][T14026] el0_svc+0x78/0x1e0 [ 550.047772][T14026] el0t_64_sync_handler+0xcc/0xe4 [ 550.048496][T14026] el0t_64_sync+0x1a0/0x1a4 [ 550.049304][T14026] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.051674][T14027] block nbd0: shutting down sockets [ 550.189079][T14029] FAULT_INJECTION: forcing a failure. [ 550.189079][T14029] name failslab, interval 1, probability 0, space 0, times 0 [ 550.190823][T14029] CPU: 1 PID: 14029 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.191851][T14029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.193251][T14029] Call trace: [ 550.193696][T14029] dump_backtrace+0x0/0x43c [ 550.194303][T14029] show_stack+0x2c/0x3c [ 550.194888][T14029] __dump_stack+0x30/0x40 [ 550.195583][T14029] dump_stack_lvl+0xf8/0x160 [ 550.196223][T14029] dump_stack+0x1c/0x5c [ 550.196752][T14029] should_fail+0x3c0/0x51c [ 550.197360][T14029] __should_failslab+0xbc/0x10c [ 550.198093][T14029] should_failslab+0x10/0x28 [ 550.198708][T14029] slab_pre_alloc_hook+0x64/0xec [ 550.199346][T14029] __kmalloc_node+0xb8/0x520 [ 550.199937][T14029] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.200666][T14029] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.201391][T14029] nbd_start_device+0x14c/0xb40 [ 550.202101][T14029] nbd_ioctl+0x514/0xc50 [ 550.202718][T14029] blkdev_ioctl+0x5f8/0xbb8 [ 550.203390][T14029] block_ioctl+0xa4/0x118 [ 550.204023][T14029] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.204725][T14029] invoke_syscall+0x98/0x2b8 [ 550.205352][T14029] el0_svc_common+0x138/0x258 [ 550.206038][T14029] do_el0_svc+0x58/0x14c [ 550.206574][T14029] el0_svc+0x78/0x1e0 [ 550.207132][T14029] el0t_64_sync_handler+0xcc/0xe4 [ 550.207872][T14029] el0t_64_sync+0x1a0/0x1a4 [ 550.208602][T14029] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.211091][T14030] block nbd0: shutting down sockets [ 550.349039][T14032] FAULT_INJECTION: forcing a failure. [ 550.349039][T14032] name failslab, interval 1, probability 0, space 0, times 0 [ 550.350842][T14032] CPU: 1 PID: 14032 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.351921][T14032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.353324][T14032] Call trace: [ 550.353746][T14032] dump_backtrace+0x0/0x43c [ 550.354418][T14032] show_stack+0x2c/0x3c [ 550.355064][T14032] __dump_stack+0x30/0x40 [ 550.355717][T14032] dump_stack_lvl+0xf8/0x160 [ 550.356399][T14032] dump_stack+0x1c/0x5c [ 550.357033][T14032] should_fail+0x3c0/0x51c [ 550.357724][T14032] __should_failslab+0xbc/0x10c [ 550.358417][T14032] should_failslab+0x10/0x28 [ 550.359091][T14032] slab_pre_alloc_hook+0x64/0xec [ 550.359867][T14032] __kmalloc_node+0xb8/0x520 [ 550.360525][T14032] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.361315][T14032] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.362134][T14032] nbd_start_device+0x14c/0xb40 [ 550.362874][T14032] nbd_ioctl+0x514/0xc50 [ 550.363450][T14032] blkdev_ioctl+0x5f8/0xbb8 [ 550.364136][T14032] block_ioctl+0xa4/0x118 [ 550.364765][T14032] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.365479][T14032] invoke_syscall+0x98/0x2b8 [ 550.366137][T14032] el0_svc_common+0x138/0x258 [ 550.366822][T14032] do_el0_svc+0x58/0x14c [ 550.367432][T14032] el0_svc+0x78/0x1e0 [ 550.367991][T14032] el0t_64_sync_handler+0xcc/0xe4 [ 550.368718][T14032] el0t_64_sync+0x1a0/0x1a4 [ 550.369497][T14032] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.371910][T14033] block nbd0: shutting down sockets [ 550.499059][T14035] FAULT_INJECTION: forcing a failure. [ 550.499059][T14035] name failslab, interval 1, probability 0, space 0, times 0 [ 550.500956][T14035] CPU: 1 PID: 14035 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.502099][T14035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.503542][T14035] Call trace: [ 550.504038][T14035] dump_backtrace+0x0/0x43c [ 550.504726][T14035] show_stack+0x2c/0x3c [ 550.505320][T14035] __dump_stack+0x30/0x40 [ 550.505912][T14035] dump_stack_lvl+0xf8/0x160 [ 550.506572][T14035] dump_stack+0x1c/0x5c [ 550.507167][T14035] should_fail+0x3c0/0x51c [ 550.507802][T14035] __should_failslab+0xbc/0x10c [ 550.508520][T14035] should_failslab+0x10/0x28 [ 550.509209][T14035] slab_pre_alloc_hook+0x64/0xec [ 550.509915][T14035] __kmalloc_node+0xb8/0x520 [ 550.510603][T14035] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.511316][T14035] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.512060][T14035] nbd_start_device+0x14c/0xb40 [ 550.512793][T14035] nbd_ioctl+0x514/0xc50 [ 550.513449][T14035] blkdev_ioctl+0x5f8/0xbb8 [ 550.514096][T14035] block_ioctl+0xa4/0x118 [ 550.514746][T14035] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.515480][T14035] invoke_syscall+0x98/0x2b8 [ 550.516131][T14035] el0_svc_common+0x138/0x258 [ 550.516826][T14035] do_el0_svc+0x58/0x14c [ 550.517433][T14035] el0_svc+0x78/0x1e0 [ 550.517943][T14035] el0t_64_sync_handler+0xcc/0xe4 [ 550.518577][T14035] el0t_64_sync+0x1a0/0x1a4 [ 550.519275][T14035] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.521983][T14036] block nbd0: shutting down sockets [ 550.649044][T14038] FAULT_INJECTION: forcing a failure. [ 550.649044][T14038] name failslab, interval 1, probability 0, space 0, times 0 [ 550.650909][T14038] CPU: 1 PID: 14038 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.652016][T14038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.653398][T14038] Call trace: [ 550.653815][T14038] dump_backtrace+0x0/0x43c [ 550.654481][T14038] show_stack+0x2c/0x3c [ 550.655080][T14038] __dump_stack+0x30/0x40 [ 550.655749][T14038] dump_stack_lvl+0xf8/0x160 [ 550.656389][T14038] dump_stack+0x1c/0x5c [ 550.657013][T14038] should_fail+0x3c0/0x51c [ 550.657664][T14038] __should_failslab+0xbc/0x10c [ 550.658407][T14038] should_failslab+0x10/0x28 [ 550.659088][T14038] slab_pre_alloc_hook+0x64/0xec [ 550.659795][T14038] __kmalloc_node+0xb8/0x520 [ 550.660463][T14038] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 550.661264][T14038] nbd_start_device+0x14c/0xb40 [ 550.661930][T14038] nbd_ioctl+0x514/0xc50 [ 550.662571][T14038] blkdev_ioctl+0x5f8/0xbb8 [ 550.663246][T14038] block_ioctl+0xa4/0x118 [ 550.663845][T14038] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.664508][T14038] invoke_syscall+0x98/0x2b8 [ 550.665175][T14038] el0_svc_common+0x138/0x258 [ 550.665846][T14038] do_el0_svc+0x58/0x14c [ 550.666441][T14038] el0_svc+0x78/0x1e0 [ 550.667100][T14038] el0t_64_sync_handler+0xcc/0xe4 [ 550.667869][T14038] el0t_64_sync+0x1a0/0x1a4 [ 550.670242][T14039] block nbd0: shutting down sockets [ 550.799036][T14041] FAULT_INJECTION: forcing a failure. [ 550.799036][T14041] name failslab, interval 1, probability 0, space 0, times 0 [ 550.800886][T14041] CPU: 1 PID: 14041 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.801959][T14041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.803365][T14041] Call trace: [ 550.803880][T14041] dump_backtrace+0x0/0x43c [ 550.804534][T14041] show_stack+0x2c/0x3c [ 550.805091][T14041] __dump_stack+0x30/0x40 [ 550.805756][T14041] dump_stack_lvl+0xf8/0x160 [ 550.806429][T14041] dump_stack+0x1c/0x5c [ 550.807022][T14041] should_fail+0x3c0/0x51c [ 550.807669][T14041] __should_failslab+0xbc/0x10c [ 550.808416][T14041] should_failslab+0x10/0x28 [ 550.809036][T14041] slab_pre_alloc_hook+0x64/0xec [ 550.809795][T14041] __kmalloc_node+0xb8/0x520 [ 550.810455][T14041] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.811251][T14041] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.812078][T14041] nbd_start_device+0x14c/0xb40 [ 550.812835][T14041] nbd_ioctl+0x514/0xc50 [ 550.813475][T14041] blkdev_ioctl+0x5f8/0xbb8 [ 550.814148][T14041] block_ioctl+0xa4/0x118 [ 550.814789][T14041] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.815466][T14041] invoke_syscall+0x98/0x2b8 [ 550.816135][T14041] el0_svc_common+0x138/0x258 [ 550.816753][T14041] do_el0_svc+0x58/0x14c [ 550.817336][T14041] el0_svc+0x78/0x1e0 [ 550.817875][T14041] el0t_64_sync_handler+0xcc/0xe4 [ 550.818599][T14041] el0t_64_sync+0x1a0/0x1a4 [ 550.819419][T14041] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.822420][T14042] block nbd0: shutting down sockets [ 550.959055][T14044] FAULT_INJECTION: forcing a failure. [ 550.959055][T14044] name failslab, interval 1, probability 0, space 0, times 0 [ 550.960901][T14044] CPU: 1 PID: 14044 Comm: syz-executor358 Not tainted syzkaller #0 [ 550.962023][T14044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 550.963448][T14044] Call trace: [ 550.963912][T14044] dump_backtrace+0x0/0x43c [ 550.964545][T14044] show_stack+0x2c/0x3c [ 550.965136][T14044] __dump_stack+0x30/0x40 [ 550.965754][T14044] dump_stack_lvl+0xf8/0x160 [ 550.966388][T14044] dump_stack+0x1c/0x5c [ 550.966971][T14044] should_fail+0x3c0/0x51c [ 550.967608][T14044] __should_failslab+0xbc/0x10c [ 550.968338][T14044] should_failslab+0x10/0x28 [ 550.969013][T14044] slab_pre_alloc_hook+0x64/0xec [ 550.969737][T14044] __kmalloc_node+0xb8/0x520 [ 550.970422][T14044] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 550.971219][T14044] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 550.972062][T14044] nbd_start_device+0x14c/0xb40 [ 550.972787][T14044] nbd_ioctl+0x514/0xc50 [ 550.973426][T14044] blkdev_ioctl+0x5f8/0xbb8 [ 550.974085][T14044] block_ioctl+0xa4/0x118 [ 550.974715][T14044] __arm64_sys_ioctl+0x14c/0x1c8 [ 550.975446][T14044] invoke_syscall+0x98/0x2b8 [ 550.976135][T14044] el0_svc_common+0x138/0x258 [ 550.976834][T14044] do_el0_svc+0x58/0x14c [ 550.977427][T14044] el0_svc+0x78/0x1e0 [ 550.977991][T14044] el0t_64_sync_handler+0xcc/0xe4 [ 550.978683][T14044] el0t_64_sync+0x1a0/0x1a4 [ 550.979447][T14044] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 550.981827][T14045] block nbd0: shutting down sockets [ 551.109065][T14047] FAULT_INJECTION: forcing a failure. [ 551.109065][T14047] name failslab, interval 1, probability 0, space 0, times 0 [ 551.111083][T14047] CPU: 0 PID: 14047 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.112244][T14047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.113621][T14047] Call trace: [ 551.114034][T14047] dump_backtrace+0x0/0x43c [ 551.114683][T14047] show_stack+0x2c/0x3c [ 551.115274][T14047] __dump_stack+0x30/0x40 [ 551.115939][T14047] dump_stack_lvl+0xf8/0x160 [ 551.116565][T14047] dump_stack+0x1c/0x5c [ 551.117162][T14047] should_fail+0x3c0/0x51c [ 551.117861][T14047] __should_failslab+0xbc/0x10c [ 551.118542][T14047] should_failslab+0x10/0x28 [ 551.119202][T14047] slab_pre_alloc_hook+0x64/0xec [ 551.119951][T14047] __kmalloc_node+0xb8/0x520 [ 551.120621][T14047] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.121380][T14047] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.122202][T14047] nbd_start_device+0x14c/0xb40 [ 551.122873][T14047] nbd_ioctl+0x514/0xc50 [ 551.123505][T14047] blkdev_ioctl+0x5f8/0xbb8 [ 551.124171][T14047] block_ioctl+0xa4/0x118 [ 551.124840][T14047] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.125569][T14047] invoke_syscall+0x98/0x2b8 [ 551.126266][T14047] el0_svc_common+0x138/0x258 [ 551.126898][T14047] do_el0_svc+0x58/0x14c [ 551.127467][T14047] el0_svc+0x78/0x1e0 [ 551.128084][T14047] el0t_64_sync_handler+0xcc/0xe4 [ 551.128779][T14047] el0t_64_sync+0x1a0/0x1a4 [ 551.129672][T14047] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.132124][T14048] block nbd0: shutting down sockets [ 551.259036][T14050] FAULT_INJECTION: forcing a failure. [ 551.259036][T14050] name failslab, interval 1, probability 0, space 0, times 0 [ 551.260862][T14050] CPU: 0 PID: 14050 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.261949][T14050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.263300][T14050] Call trace: [ 551.263754][T14050] dump_backtrace+0x0/0x43c [ 551.264434][T14050] show_stack+0x2c/0x3c [ 551.264980][T14050] __dump_stack+0x30/0x40 [ 551.265622][T14050] dump_stack_lvl+0xf8/0x160 [ 551.266264][T14050] dump_stack+0x1c/0x5c [ 551.266850][T14050] should_fail+0x3c0/0x51c [ 551.267472][T14050] __should_failslab+0xbc/0x10c [ 551.268173][T14050] should_failslab+0x10/0x28 [ 551.268808][T14050] slab_pre_alloc_hook+0x64/0xec [ 551.269499][T14050] __kmalloc_node+0xb8/0x520 [ 551.270163][T14050] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.270926][T14050] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.271752][T14050] nbd_start_device+0x14c/0xb40 [ 551.272517][T14050] nbd_ioctl+0x514/0xc50 [ 551.273165][T14050] blkdev_ioctl+0x5f8/0xbb8 [ 551.273830][T14050] block_ioctl+0xa4/0x118 [ 551.274422][T14050] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.275144][T14050] invoke_syscall+0x98/0x2b8 [ 551.275818][T14050] el0_svc_common+0x138/0x258 [ 551.276475][T14050] do_el0_svc+0x58/0x14c [ 551.277110][T14050] el0_svc+0x78/0x1e0 [ 551.277646][T14050] el0t_64_sync_handler+0xcc/0xe4 [ 551.278324][T14050] el0t_64_sync+0x1a0/0x1a4 [ 551.279074][T14050] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.281553][T14051] block nbd0: shutting down sockets [ 551.429152][T14054] FAULT_INJECTION: forcing a failure. [ 551.429152][T14054] name failslab, interval 1, probability 0, space 0, times 0 [ 551.431204][T14054] CPU: 1 PID: 14054 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.432399][T14054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.433812][T14054] Call trace: [ 551.434273][T14054] dump_backtrace+0x0/0x43c [ 551.434906][T14054] show_stack+0x2c/0x3c [ 551.435502][T14054] __dump_stack+0x30/0x40 [ 551.436130][T14054] dump_stack_lvl+0xf8/0x160 [ 551.436785][T14054] dump_stack+0x1c/0x5c [ 551.437393][T14054] should_fail+0x3c0/0x51c [ 551.438034][T14054] __should_failslab+0xbc/0x10c [ 551.438729][T14054] should_failslab+0x10/0x28 [ 551.439397][T14054] slab_pre_alloc_hook+0x64/0xec [ 551.440119][T14054] __kmalloc_node+0xb8/0x520 [ 551.440794][T14054] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.441554][T14054] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.442359][T14054] nbd_start_device+0x14c/0xb40 [ 551.443089][T14054] nbd_ioctl+0x514/0xc50 [ 551.443707][T14054] blkdev_ioctl+0x5f8/0xbb8 [ 551.444382][T14054] block_ioctl+0xa4/0x118 [ 551.445011][T14054] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.445782][T14054] invoke_syscall+0x98/0x2b8 [ 551.446418][T14054] el0_svc_common+0x138/0x258 [ 551.447055][T14054] do_el0_svc+0x58/0x14c [ 551.447663][T14054] el0_svc+0x78/0x1e0 [ 551.448236][T14054] el0t_64_sync_handler+0xcc/0xe4 [ 551.448959][T14054] el0t_64_sync+0x1a0/0x1a4 [ 551.449778][T14054] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.452178][T14053] block nbd0: shutting down sockets [ 551.579030][T14056] FAULT_INJECTION: forcing a failure. [ 551.579030][T14056] name failslab, interval 1, probability 0, space 0, times 0 [ 551.580969][T14056] CPU: 1 PID: 14056 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.582137][T14056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.583723][T14056] Call trace: [ 551.584221][T14056] dump_backtrace+0x0/0x43c [ 551.584887][T14056] show_stack+0x2c/0x3c [ 551.585508][T14056] __dump_stack+0x30/0x40 [ 551.586136][T14056] dump_stack_lvl+0xf8/0x160 [ 551.586833][T14056] dump_stack+0x1c/0x5c [ 551.587408][T14056] should_fail+0x3c0/0x51c [ 551.588037][T14056] __should_failslab+0xbc/0x10c [ 551.588724][T14056] should_failslab+0x10/0x28 [ 551.589359][T14056] slab_pre_alloc_hook+0x64/0xec [ 551.590058][T14056] __kmalloc_node+0xb8/0x520 [ 551.590737][T14056] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.591525][T14056] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.592313][T14056] nbd_start_device+0x14c/0xb40 [ 551.592977][T14056] nbd_ioctl+0x514/0xc50 [ 551.593571][T14056] blkdev_ioctl+0x5f8/0xbb8 [ 551.594264][T14056] block_ioctl+0xa4/0x118 [ 551.594925][T14056] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.595637][T14056] invoke_syscall+0x98/0x2b8 [ 551.596288][T14056] el0_svc_common+0x138/0x258 [ 551.596988][T14056] do_el0_svc+0x58/0x14c [ 551.597582][T14056] el0_svc+0x78/0x1e0 [ 551.598181][T14056] el0t_64_sync_handler+0xcc/0xe4 [ 551.598856][T14056] el0t_64_sync+0x1a0/0x1a4 [ 551.599956][T14056] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.602822][T14057] block nbd0: shutting down sockets [ 551.729104][T14059] FAULT_INJECTION: forcing a failure. [ 551.729104][T14059] name failslab, interval 1, probability 0, space 0, times 0 [ 551.731012][T14059] CPU: 0 PID: 14059 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.732121][T14059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.733628][T14059] Call trace: [ 551.734103][T14059] dump_backtrace+0x0/0x43c [ 551.734751][T14059] show_stack+0x2c/0x3c [ 551.735307][T14059] __dump_stack+0x30/0x40 [ 551.735990][T14059] dump_stack_lvl+0xf8/0x160 [ 551.736643][T14059] dump_stack+0x1c/0x5c [ 551.737317][T14059] should_fail+0x3c0/0x51c [ 551.738033][T14059] __should_failslab+0xbc/0x10c [ 551.738722][T14059] should_failslab+0x10/0x28 [ 551.739432][T14059] slab_pre_alloc_hook+0x64/0xec [ 551.740186][T14059] __kmalloc_node+0xb8/0x520 [ 551.740850][T14059] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.741563][T14059] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.742405][T14059] nbd_start_device+0x14c/0xb40 [ 551.743100][T14059] nbd_ioctl+0x514/0xc50 [ 551.743737][T14059] blkdev_ioctl+0x5f8/0xbb8 [ 551.744452][T14059] block_ioctl+0xa4/0x118 [ 551.745118][T14059] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.745814][T14059] invoke_syscall+0x98/0x2b8 [ 551.746470][T14059] el0_svc_common+0x138/0x258 [ 551.747141][T14059] do_el0_svc+0x58/0x14c [ 551.747771][T14059] el0_svc+0x78/0x1e0 [ 551.748371][T14059] el0t_64_sync_handler+0xcc/0xe4 [ 551.749087][T14059] el0t_64_sync+0x1a0/0x1a4 [ 551.749899][T14059] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.752392][T14060] block nbd0: shutting down sockets [ 551.879072][T14062] FAULT_INJECTION: forcing a failure. [ 551.879072][T14062] name failslab, interval 1, probability 0, space 0, times 0 [ 551.880959][T14062] CPU: 1 PID: 14062 Comm: syz-executor358 Not tainted syzkaller #0 [ 551.882062][T14062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 551.883534][T14062] Call trace: [ 551.884068][T14062] dump_backtrace+0x0/0x43c [ 551.884745][T14062] show_stack+0x2c/0x3c [ 551.885357][T14062] __dump_stack+0x30/0x40 [ 551.885985][T14062] dump_stack_lvl+0xf8/0x160 [ 551.886647][T14062] dump_stack+0x1c/0x5c [ 551.887251][T14062] should_fail+0x3c0/0x51c [ 551.887897][T14062] __should_failslab+0xbc/0x10c [ 551.888601][T14062] should_failslab+0x10/0x28 [ 551.889260][T14062] slab_pre_alloc_hook+0x64/0xec [ 551.889938][T14062] __kmalloc_node+0xb8/0x520 [ 551.890597][T14062] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 551.891436][T14062] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 551.892264][T14062] nbd_start_device+0x14c/0xb40 [ 551.893034][T14062] nbd_ioctl+0x514/0xc50 [ 551.893677][T14062] blkdev_ioctl+0x5f8/0xbb8 [ 551.894358][T14062] block_ioctl+0xa4/0x118 [ 551.894987][T14062] __arm64_sys_ioctl+0x14c/0x1c8 [ 551.895708][T14062] invoke_syscall+0x98/0x2b8 [ 551.896413][T14062] el0_svc_common+0x138/0x258 [ 551.897085][T14062] do_el0_svc+0x58/0x14c [ 551.897684][T14062] el0_svc+0x78/0x1e0 [ 551.898266][T14062] el0t_64_sync_handler+0xcc/0xe4 [ 551.898974][T14062] el0t_64_sync+0x1a0/0x1a4 [ 551.899999][T14062] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 551.902854][T14063] block nbd0: shutting down sockets [ 552.049099][T14065] FAULT_INJECTION: forcing a failure. [ 552.049099][T14065] name failslab, interval 1, probability 0, space 0, times 0 [ 552.050813][T14065] CPU: 0 PID: 14065 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.051887][T14065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.053309][T14065] Call trace: [ 552.053742][T14065] dump_backtrace+0x0/0x43c [ 552.054341][T14065] show_stack+0x2c/0x3c [ 552.054935][T14065] __dump_stack+0x30/0x40 [ 552.055520][T14065] dump_stack_lvl+0xf8/0x160 [ 552.056139][T14065] dump_stack+0x1c/0x5c [ 552.056796][T14065] should_fail+0x3c0/0x51c [ 552.057418][T14065] __should_failslab+0xbc/0x10c [ 552.058131][T14065] should_failslab+0x10/0x28 [ 552.058786][T14065] slab_pre_alloc_hook+0x64/0xec [ 552.059491][T14065] __kmalloc_node+0xb8/0x520 [ 552.060160][T14065] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.060912][T14065] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.061716][T14065] nbd_start_device+0x14c/0xb40 [ 552.062385][T14065] nbd_ioctl+0x514/0xc50 [ 552.063008][T14065] blkdev_ioctl+0x5f8/0xbb8 [ 552.063625][T14065] block_ioctl+0xa4/0x118 [ 552.064208][T14065] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.064908][T14065] invoke_syscall+0x98/0x2b8 [ 552.065561][T14065] el0_svc_common+0x138/0x258 [ 552.066232][T14065] do_el0_svc+0x58/0x14c [ 552.066815][T14065] el0_svc+0x78/0x1e0 [ 552.067451][T14065] el0t_64_sync_handler+0xcc/0xe4 [ 552.068191][T14065] el0t_64_sync+0x1a0/0x1a4 [ 552.068945][T14065] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.071486][T14066] block nbd0: shutting down sockets [ 552.199099][T14068] FAULT_INJECTION: forcing a failure. [ 552.199099][T14068] name failslab, interval 1, probability 0, space 0, times 0 [ 552.201058][T14068] CPU: 0 PID: 14068 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.202165][T14068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.203632][T14068] Call trace: [ 552.204083][T14068] dump_backtrace+0x0/0x43c [ 552.204775][T14068] show_stack+0x2c/0x3c [ 552.205361][T14068] __dump_stack+0x30/0x40 [ 552.205991][T14068] dump_stack_lvl+0xf8/0x160 [ 552.206631][T14068] dump_stack+0x1c/0x5c [ 552.207270][T14068] should_fail+0x3c0/0x51c [ 552.207949][T14068] __should_failslab+0xbc/0x10c [ 552.208668][T14068] should_failslab+0x10/0x28 [ 552.209305][T14068] slab_pre_alloc_hook+0x64/0xec [ 552.210053][T14068] __kmalloc_node+0xb8/0x520 [ 552.210734][T14068] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.211473][T14068] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.212271][T14068] nbd_start_device+0x14c/0xb40 [ 552.212939][T14068] nbd_ioctl+0x514/0xc50 [ 552.213523][T14068] blkdev_ioctl+0x5f8/0xbb8 [ 552.214137][T14068] block_ioctl+0xa4/0x118 [ 552.214905][T14068] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.215749][T14068] invoke_syscall+0x98/0x2b8 [ 552.216484][T14068] el0_svc_common+0x138/0x258 [ 552.217237][T14068] do_el0_svc+0x58/0x14c [ 552.217877][T14068] el0_svc+0x78/0x1e0 [ 552.218467][T14068] el0t_64_sync_handler+0xcc/0xe4 [ 552.219251][T14068] el0t_64_sync+0x1a0/0x1a4 [ 552.220860][T14068] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.223407][T14069] block nbd0: shutting down sockets [ 552.379061][T14071] FAULT_INJECTION: forcing a failure. [ 552.379061][T14071] name failslab, interval 1, probability 0, space 0, times 0 [ 552.380991][T14071] CPU: 0 PID: 14071 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.382132][T14071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.383594][T14071] Call trace: [ 552.384043][T14071] dump_backtrace+0x0/0x43c [ 552.384696][T14071] show_stack+0x2c/0x3c [ 552.385274][T14071] __dump_stack+0x30/0x40 [ 552.385897][T14071] dump_stack_lvl+0xf8/0x160 [ 552.386557][T14071] dump_stack+0x1c/0x5c [ 552.387138][T14071] should_fail+0x3c0/0x51c [ 552.387759][T14071] __should_failslab+0xbc/0x10c [ 552.388463][T14071] should_failslab+0x10/0x28 [ 552.389104][T14071] slab_pre_alloc_hook+0x64/0xec [ 552.389780][T14071] __kmalloc_node+0xb8/0x520 [ 552.390385][T14071] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.391107][T14071] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.391865][T14071] nbd_start_device+0x14c/0xb40 [ 552.392534][T14071] nbd_ioctl+0x514/0xc50 [ 552.393144][T14071] blkdev_ioctl+0x5f8/0xbb8 [ 552.393776][T14071] block_ioctl+0xa4/0x118 [ 552.394406][T14071] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.395094][T14071] invoke_syscall+0x98/0x2b8 [ 552.395760][T14071] el0_svc_common+0x138/0x258 [ 552.396402][T14071] do_el0_svc+0x58/0x14c [ 552.397002][T14071] el0_svc+0x78/0x1e0 [ 552.397518][T14071] el0t_64_sync_handler+0xcc/0xe4 [ 552.398191][T14071] el0t_64_sync+0x1a0/0x1a4 [ 552.398967][T14071] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.401415][T14072] block nbd0: shutting down sockets [ 552.529026][T14074] FAULT_INJECTION: forcing a failure. [ 552.529026][T14074] name failslab, interval 1, probability 0, space 0, times 0 [ 552.531007][T14074] CPU: 0 PID: 14074 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.532104][T14074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.533516][T14074] Call trace: [ 552.533980][T14074] dump_backtrace+0x0/0x43c [ 552.534622][T14074] show_stack+0x2c/0x3c [ 552.535152][T14074] __dump_stack+0x30/0x40 [ 552.535694][T14074] dump_stack_lvl+0xf8/0x160 [ 552.536288][T14074] dump_stack+0x1c/0x5c [ 552.536849][T14074] should_fail+0x3c0/0x51c [ 552.537519][T14074] __should_failslab+0xbc/0x10c [ 552.538183][T14074] should_failslab+0x10/0x28 [ 552.538789][T14074] slab_pre_alloc_hook+0x64/0xec [ 552.539446][T14074] __kmalloc_node+0xb8/0x520 [ 552.540068][T14074] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.540841][T14074] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.541571][T14074] nbd_start_device+0x14c/0xb40 [ 552.542270][T14074] nbd_ioctl+0x514/0xc50 [ 552.542917][T14074] blkdev_ioctl+0x5f8/0xbb8 [ 552.543533][T14074] block_ioctl+0xa4/0x118 [ 552.544096][T14074] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.544824][T14074] invoke_syscall+0x98/0x2b8 [ 552.545468][T14074] el0_svc_common+0x138/0x258 [ 552.546099][T14074] do_el0_svc+0x58/0x14c [ 552.546685][T14074] el0_svc+0x78/0x1e0 [ 552.547380][T14074] el0t_64_sync_handler+0xcc/0xe4 [ 552.548063][T14074] el0t_64_sync+0x1a0/0x1a4 [ 552.549257][T14074] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.551766][T14075] block nbd0: shutting down sockets [ 552.709103][T14078] FAULT_INJECTION: forcing a failure. [ 552.709103][T14078] name failslab, interval 1, probability 0, space 0, times 0 [ 552.711081][T14078] CPU: 1 PID: 14078 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.712362][T14078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.713894][T14078] Call trace: [ 552.714423][T14078] dump_backtrace+0x0/0x43c [ 552.715185][T14078] show_stack+0x2c/0x3c [ 552.715801][T14078] __dump_stack+0x30/0x40 [ 552.716458][T14078] dump_stack_lvl+0xf8/0x160 [ 552.717137][T14078] dump_stack+0x1c/0x5c [ 552.717773][T14078] should_fail+0x3c0/0x51c [ 552.718450][T14078] __should_failslab+0xbc/0x10c [ 552.719208][T14078] should_failslab+0x10/0x28 [ 552.719922][T14078] slab_pre_alloc_hook+0x64/0xec [ 552.720668][T14078] __kmalloc_node+0xb8/0x520 [ 552.721335][T14078] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.722066][T14078] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.722877][T14078] nbd_start_device+0x14c/0xb40 [ 552.723607][T14078] nbd_ioctl+0x514/0xc50 [ 552.724248][T14078] blkdev_ioctl+0x5f8/0xbb8 [ 552.724937][T14078] block_ioctl+0xa4/0x118 [ 552.725547][T14078] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.726259][T14078] invoke_syscall+0x98/0x2b8 [ 552.726883][T14078] el0_svc_common+0x138/0x258 [ 552.727567][T14078] do_el0_svc+0x58/0x14c [ 552.728197][T14078] el0_svc+0x78/0x1e0 [ 552.728755][T14078] el0t_64_sync_handler+0xcc/0xe4 [ 552.729396][T14078] el0t_64_sync+0x1a0/0x1a4 [ 552.730135][T14078] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.732605][T14077] block nbd0: shutting down sockets [ 552.869093][T14080] FAULT_INJECTION: forcing a failure. [ 552.869093][T14080] name failslab, interval 1, probability 0, space 0, times 0 [ 552.870850][T14080] CPU: 1 PID: 14080 Comm: syz-executor358 Not tainted syzkaller #0 [ 552.871869][T14080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 552.873282][T14080] Call trace: [ 552.873709][T14080] dump_backtrace+0x0/0x43c [ 552.874322][T14080] show_stack+0x2c/0x3c [ 552.874894][T14080] __dump_stack+0x30/0x40 [ 552.875513][T14080] dump_stack_lvl+0xf8/0x160 [ 552.876150][T14080] dump_stack+0x1c/0x5c [ 552.876737][T14080] should_fail+0x3c0/0x51c [ 552.877376][T14080] __should_failslab+0xbc/0x10c [ 552.878032][T14080] should_failslab+0x10/0x28 [ 552.878708][T14080] slab_pre_alloc_hook+0x64/0xec [ 552.879418][T14080] __kmalloc_node+0xb8/0x520 [ 552.880094][T14080] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 552.880846][T14080] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 552.881678][T14080] nbd_start_device+0x14c/0xb40 [ 552.882392][T14080] nbd_ioctl+0x514/0xc50 [ 552.883016][T14080] blkdev_ioctl+0x5f8/0xbb8 [ 552.883675][T14080] block_ioctl+0xa4/0x118 [ 552.884291][T14080] __arm64_sys_ioctl+0x14c/0x1c8 [ 552.885013][T14080] invoke_syscall+0x98/0x2b8 [ 552.885652][T14080] el0_svc_common+0x138/0x258 [ 552.886287][T14080] do_el0_svc+0x58/0x14c [ 552.886900][T14080] el0_svc+0x78/0x1e0 [ 552.887458][T14080] el0t_64_sync_handler+0xcc/0xe4 [ 552.888133][T14080] el0t_64_sync+0x1a0/0x1a4 [ 552.888837][T14080] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 552.891158][T14081] block nbd0: shutting down sockets [ 553.019045][T14083] FAULT_INJECTION: forcing a failure. [ 553.019045][T14083] name failslab, interval 1, probability 0, space 0, times 0 [ 553.020796][T14083] CPU: 1 PID: 14083 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.021860][T14083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.023341][T14083] Call trace: [ 553.023897][T14083] dump_backtrace+0x0/0x43c [ 553.024546][T14083] show_stack+0x2c/0x3c [ 553.025184][T14083] __dump_stack+0x30/0x40 [ 553.025817][T14083] dump_stack_lvl+0xf8/0x160 [ 553.026515][T14083] dump_stack+0x1c/0x5c [ 553.027106][T14083] should_fail+0x3c0/0x51c [ 553.027757][T14083] __should_failslab+0xbc/0x10c [ 553.028407][T14083] should_failslab+0x10/0x28 [ 553.029128][T14083] slab_pre_alloc_hook+0x64/0xec [ 553.029930][T14083] __kmalloc_node+0xb8/0x520 [ 553.030675][T14083] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.031531][T14083] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.032444][T14083] nbd_start_device+0x14c/0xb40 [ 553.033191][T14083] nbd_ioctl+0x514/0xc50 [ 553.033868][T14083] blkdev_ioctl+0x5f8/0xbb8 [ 553.034521][T14083] block_ioctl+0xa4/0x118 [ 553.035174][T14083] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.035894][T14083] invoke_syscall+0x98/0x2b8 [ 553.036523][T14083] el0_svc_common+0x138/0x258 [ 553.037198][T14083] do_el0_svc+0x58/0x14c [ 553.037789][T14083] el0_svc+0x78/0x1e0 [ 553.038329][T14083] el0t_64_sync_handler+0xcc/0xe4 [ 553.039047][T14083] el0t_64_sync+0x1a0/0x1a4 [ 553.039779][T14083] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.042178][T14084] block nbd0: shutting down sockets [ 553.169042][T14086] FAULT_INJECTION: forcing a failure. [ 553.169042][T14086] name failslab, interval 1, probability 0, space 0, times 0 [ 553.171055][T14086] CPU: 1 PID: 14086 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.172308][T14086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.173854][T14086] Call trace: [ 553.174383][T14086] dump_backtrace+0x0/0x43c [ 553.175097][T14086] show_stack+0x2c/0x3c [ 553.175720][T14086] __dump_stack+0x30/0x40 [ 553.176394][T14086] dump_stack_lvl+0xf8/0x160 [ 553.177081][T14086] dump_stack+0x1c/0x5c [ 553.177677][T14086] should_fail+0x3c0/0x51c [ 553.178282][T14086] __should_failslab+0xbc/0x10c [ 553.178991][T14086] should_failslab+0x10/0x28 [ 553.179656][T14086] slab_pre_alloc_hook+0x64/0xec [ 553.180433][T14086] __kmalloc_node+0xb8/0x520 [ 553.181048][T14086] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.181764][T14086] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.182589][T14086] nbd_start_device+0x14c/0xb40 [ 553.183298][T14086] nbd_ioctl+0x514/0xc50 [ 553.183872][T14086] blkdev_ioctl+0x5f8/0xbb8 [ 553.184499][T14086] block_ioctl+0xa4/0x118 [ 553.185142][T14086] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.185811][T14086] invoke_syscall+0x98/0x2b8 [ 553.186425][T14086] el0_svc_common+0x138/0x258 [ 553.187088][T14086] do_el0_svc+0x58/0x14c [ 553.187670][T14086] el0_svc+0x78/0x1e0 [ 553.188246][T14086] el0t_64_sync_handler+0xcc/0xe4 [ 553.188893][T14086] el0t_64_sync+0x1a0/0x1a4 [ 553.189893][T14086] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.192783][T14087] block nbd0: shutting down sockets [ 553.329046][T14089] FAULT_INJECTION: forcing a failure. [ 553.329046][T14089] name failslab, interval 1, probability 0, space 0, times 0 [ 553.330936][T14089] CPU: 1 PID: 14089 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.332060][T14089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.333497][T14089] Call trace: [ 553.333922][T14089] dump_backtrace+0x0/0x43c [ 553.334561][T14089] show_stack+0x2c/0x3c [ 553.335132][T14089] __dump_stack+0x30/0x40 [ 553.335731][T14089] dump_stack_lvl+0xf8/0x160 [ 553.336344][T14089] dump_stack+0x1c/0x5c [ 553.336939][T14089] should_fail+0x3c0/0x51c [ 553.337572][T14089] __should_failslab+0xbc/0x10c [ 553.338236][T14089] should_failslab+0x10/0x28 [ 553.338875][T14089] slab_pre_alloc_hook+0x64/0xec [ 553.339593][T14089] __kmalloc_node+0xb8/0x520 [ 553.340256][T14089] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.340985][T14089] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.341707][T14089] nbd_start_device+0x14c/0xb40 [ 553.342382][T14089] nbd_ioctl+0x514/0xc50 [ 553.342966][T14089] blkdev_ioctl+0x5f8/0xbb8 [ 553.343570][T14089] block_ioctl+0xa4/0x118 [ 553.344166][T14089] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.344852][T14089] invoke_syscall+0x98/0x2b8 [ 553.345477][T14089] el0_svc_common+0x138/0x258 [ 553.346142][T14089] do_el0_svc+0x58/0x14c [ 553.346746][T14089] el0_svc+0x78/0x1e0 [ 553.347306][T14089] el0t_64_sync_handler+0xcc/0xe4 [ 553.347951][T14089] el0t_64_sync+0x1a0/0x1a4 [ 553.348674][T14089] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.351021][T14090] block nbd0: shutting down sockets [ 553.489059][T14092] FAULT_INJECTION: forcing a failure. [ 553.489059][T14092] name failslab, interval 1, probability 0, space 0, times 0 [ 553.491052][T14092] CPU: 0 PID: 14092 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.492234][T14092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.493635][T14092] Call trace: [ 553.494102][T14092] dump_backtrace+0x0/0x43c [ 553.494788][T14092] show_stack+0x2c/0x3c [ 553.495381][T14092] __dump_stack+0x30/0x40 [ 553.496012][T14092] dump_stack_lvl+0xf8/0x160 [ 553.496611][T14092] dump_stack+0x1c/0x5c [ 553.497181][T14092] should_fail+0x3c0/0x51c [ 553.497816][T14092] __should_failslab+0xbc/0x10c [ 553.498494][T14092] should_failslab+0x10/0x28 [ 553.499099][T14092] slab_pre_alloc_hook+0x64/0xec [ 553.499832][T14092] __kmalloc_node+0xb8/0x520 [ 553.500451][T14092] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.501200][T14092] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.502003][T14092] nbd_start_device+0x14c/0xb40 [ 553.502725][T14092] nbd_ioctl+0x514/0xc50 [ 553.503332][T14092] blkdev_ioctl+0x5f8/0xbb8 [ 553.503986][T14092] block_ioctl+0xa4/0x118 [ 553.504732][T14092] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.505546][T14092] invoke_syscall+0x98/0x2b8 [ 553.506290][T14092] el0_svc_common+0x138/0x258 [ 553.507017][T14092] do_el0_svc+0x58/0x14c [ 553.507677][T14092] el0_svc+0x78/0x1e0 [ 553.508284][T14092] el0t_64_sync_handler+0xcc/0xe4 [ 553.509052][T14092] el0t_64_sync+0x1a0/0x1a4 [ 553.509842][T14092] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.512296][T14093] block nbd0: shutting down sockets [ 553.639039][T14095] FAULT_INJECTION: forcing a failure. [ 553.639039][T14095] name failslab, interval 1, probability 0, space 0, times 0 [ 553.640826][T14095] CPU: 0 PID: 14095 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.641866][T14095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.643366][T14095] Call trace: [ 553.643807][T14095] dump_backtrace+0x0/0x43c [ 553.644436][T14095] show_stack+0x2c/0x3c [ 553.644978][T14095] __dump_stack+0x30/0x40 [ 553.645587][T14095] dump_stack_lvl+0xf8/0x160 [ 553.646243][T14095] dump_stack+0x1c/0x5c [ 553.646810][T14095] should_fail+0x3c0/0x51c [ 553.647443][T14095] __should_failslab+0xbc/0x10c [ 553.648098][T14095] should_failslab+0x10/0x28 [ 553.648749][T14095] slab_pre_alloc_hook+0x64/0xec [ 553.649470][T14095] __kmalloc_node+0xb8/0x520 [ 553.650129][T14095] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 553.651001][T14095] nbd_start_device+0x14c/0xb40 [ 553.651710][T14095] nbd_ioctl+0x514/0xc50 [ 553.652318][T14095] blkdev_ioctl+0x5f8/0xbb8 [ 553.652966][T14095] block_ioctl+0xa4/0x118 [ 553.653620][T14095] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.654300][T14095] invoke_syscall+0x98/0x2b8 [ 553.655009][T14095] el0_svc_common+0x138/0x258 [ 553.655618][T14095] do_el0_svc+0x58/0x14c [ 553.656250][T14095] el0_svc+0x78/0x1e0 [ 553.656771][T14095] el0t_64_sync_handler+0xcc/0xe4 [ 553.657437][T14095] el0t_64_sync+0x1a0/0x1a4 [ 553.660240][T14096] block nbd0: shutting down sockets [ 553.789061][T14098] FAULT_INJECTION: forcing a failure. [ 553.789061][T14098] name failslab, interval 1, probability 0, space 0, times 0 [ 553.790998][T14098] CPU: 0 PID: 14098 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.792234][T14098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.793669][T14098] Call trace: [ 553.794172][T14098] dump_backtrace+0x0/0x43c [ 553.794774][T14098] show_stack+0x2c/0x3c [ 553.795349][T14098] __dump_stack+0x30/0x40 [ 553.795972][T14098] dump_stack_lvl+0xf8/0x160 [ 553.796610][T14098] dump_stack+0x1c/0x5c [ 553.797170][T14098] should_fail+0x3c0/0x51c [ 553.797756][T14098] __should_failslab+0xbc/0x10c [ 553.798444][T14098] should_failslab+0x10/0x28 [ 553.799082][T14098] slab_pre_alloc_hook+0x64/0xec [ 553.799791][T14098] __kmalloc_node+0xb8/0x520 [ 553.800405][T14098] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.801187][T14098] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.802034][T14098] nbd_start_device+0x14c/0xb40 [ 553.802698][T14098] nbd_ioctl+0x514/0xc50 [ 553.803319][T14098] blkdev_ioctl+0x5f8/0xbb8 [ 553.804023][T14098] block_ioctl+0xa4/0x118 [ 553.804692][T14098] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.805449][T14098] invoke_syscall+0x98/0x2b8 [ 553.806145][T14098] el0_svc_common+0x138/0x258 [ 553.806810][T14098] do_el0_svc+0x58/0x14c [ 553.807402][T14098] el0_svc+0x78/0x1e0 [ 553.807942][T14098] el0t_64_sync_handler+0xcc/0xe4 [ 553.808715][T14098] el0t_64_sync+0x1a0/0x1a4 [ 553.809820][T14098] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.812318][T14099] block nbd0: shutting down sockets [ 553.919038][T14101] FAULT_INJECTION: forcing a failure. [ 553.919038][T14101] name failslab, interval 1, probability 0, space 0, times 0 [ 553.920959][T14101] CPU: 1 PID: 14101 Comm: syz-executor358 Not tainted syzkaller #0 [ 553.922112][T14101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 553.923551][T14101] Call trace: [ 553.924025][T14101] dump_backtrace+0x0/0x43c [ 553.924661][T14101] show_stack+0x2c/0x3c [ 553.925271][T14101] __dump_stack+0x30/0x40 [ 553.925921][T14101] dump_stack_lvl+0xf8/0x160 [ 553.926663][T14101] dump_stack+0x1c/0x5c [ 553.927329][T14101] should_fail+0x3c0/0x51c [ 553.928064][T14101] __should_failslab+0xbc/0x10c [ 553.928865][T14101] should_failslab+0x10/0x28 [ 553.929575][T14101] slab_pre_alloc_hook+0x64/0xec [ 553.930317][T14101] __kmalloc_node+0xb8/0x520 [ 553.930980][T14101] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 553.931716][T14101] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 553.932589][T14101] nbd_start_device+0x14c/0xb40 [ 553.933363][T14101] nbd_ioctl+0x514/0xc50 [ 553.934054][T14101] blkdev_ioctl+0x5f8/0xbb8 [ 553.934703][T14101] block_ioctl+0xa4/0x118 [ 553.935391][T14101] __arm64_sys_ioctl+0x14c/0x1c8 [ 553.936171][T14101] invoke_syscall+0x98/0x2b8 [ 553.936860][T14101] el0_svc_common+0x138/0x258 [ 553.937520][T14101] do_el0_svc+0x58/0x14c [ 553.938118][T14101] el0_svc+0x78/0x1e0 [ 553.938676][T14101] el0t_64_sync_handler+0xcc/0xe4 [ 553.939404][T14101] el0t_64_sync+0x1a0/0x1a4 [ 553.940174][T14101] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 553.942479][T14102] block nbd0: shutting down sockets [ 554.049100][T14104] FAULT_INJECTION: forcing a failure. [ 554.049100][T14104] name failslab, interval 1, probability 0, space 0, times 0 [ 554.051048][T14104] CPU: 1 PID: 14104 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.052148][T14104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.053570][T14104] Call trace: [ 554.054033][T14104] dump_backtrace+0x0/0x43c [ 554.054685][T14104] show_stack+0x2c/0x3c [ 554.055272][T14104] __dump_stack+0x30/0x40 [ 554.055882][T14104] dump_stack_lvl+0xf8/0x160 [ 554.056530][T14104] dump_stack+0x1c/0x5c [ 554.057133][T14104] should_fail+0x3c0/0x51c [ 554.057772][T14104] __should_failslab+0xbc/0x10c [ 554.058464][T14104] should_failslab+0x10/0x28 [ 554.059164][T14104] slab_pre_alloc_hook+0x64/0xec [ 554.059873][T14104] __kmalloc_node+0xb8/0x520 [ 554.060532][T14104] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 554.061317][T14104] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 554.062089][T14104] nbd_start_device+0x14c/0xb40 [ 554.062758][T14104] nbd_ioctl+0x514/0xc50 [ 554.063361][T14104] blkdev_ioctl+0x5f8/0xbb8 [ 554.064032][T14104] block_ioctl+0xa4/0x118 [ 554.064640][T14104] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.065368][T14104] invoke_syscall+0x98/0x2b8 [ 554.066101][T14104] el0_svc_common+0x138/0x258 [ 554.066825][T14104] do_el0_svc+0x58/0x14c [ 554.067439][T14104] el0_svc+0x78/0x1e0 [ 554.068053][T14104] el0t_64_sync_handler+0xcc/0xe4 [ 554.068833][T14104] el0t_64_sync+0x1a0/0x1a4 [ 554.069575][T14104] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 554.071979][T14105] block nbd0: shutting down sockets [ 554.209079][T14107] FAULT_INJECTION: forcing a failure. [ 554.209079][T14107] name failslab, interval 1, probability 0, space 0, times 0 [ 554.211091][T14107] CPU: 0 PID: 14107 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.212229][T14107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.213651][T14107] Call trace: [ 554.214130][T14107] dump_backtrace+0x0/0x43c [ 554.214744][T14107] show_stack+0x2c/0x3c [ 554.215369][T14107] __dump_stack+0x30/0x40 [ 554.215968][T14107] dump_stack_lvl+0xf8/0x160 [ 554.216644][T14107] dump_stack+0x1c/0x5c [ 554.217183][T14107] should_fail+0x3c0/0x51c [ 554.217827][T14107] __should_failslab+0xbc/0x10c [ 554.218528][T14107] should_failslab+0x10/0x28 [ 554.219193][T14107] slab_pre_alloc_hook+0x64/0xec [ 554.219966][T14107] __kmalloc_node+0xb8/0x520 [ 554.220568][T14107] blk_mq_update_nr_hw_queues+0x54c/0xbfc [ 554.221369][T14107] nbd_start_device+0x14c/0xb40 [ 554.222006][T14107] nbd_ioctl+0x514/0xc50 [ 554.222601][T14107] blkdev_ioctl+0x5f8/0xbb8 [ 554.223264][T14107] block_ioctl+0xa4/0x118 [ 554.223916][T14107] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.224580][T14107] invoke_syscall+0x98/0x2b8 [ 554.225225][T14107] el0_svc_common+0x138/0x258 [ 554.225872][T14107] do_el0_svc+0x58/0x14c [ 554.226449][T14107] el0_svc+0x78/0x1e0 [ 554.227032][T14107] el0t_64_sync_handler+0xcc/0xe4 [ 554.227769][T14107] el0t_64_sync+0x1a0/0x1a4 [ 554.230097][T14108] block nbd0: shutting down sockets [ 554.389057][T14111] FAULT_INJECTION: forcing a failure. [ 554.389057][T14111] name failslab, interval 1, probability 0, space 0, times 0 [ 554.390880][T14111] CPU: 0 PID: 14111 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.392069][T14111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.393468][T14111] Call trace: [ 554.393955][T14111] dump_backtrace+0x0/0x43c [ 554.394641][T14111] show_stack+0x2c/0x3c [ 554.395261][T14111] __dump_stack+0x30/0x40 [ 554.395898][T14111] dump_stack_lvl+0xf8/0x160 [ 554.396535][T14111] dump_stack+0x1c/0x5c [ 554.397180][T14111] should_fail+0x3c0/0x51c [ 554.397847][T14111] __should_failslab+0xbc/0x10c [ 554.398514][T14111] should_failslab+0x10/0x28 [ 554.399154][T14111] slab_pre_alloc_hook+0x64/0xec [ 554.399883][T14111] __kmalloc_node+0xb8/0x520 [ 554.400469][T14111] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 554.401262][T14111] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 554.402034][T14111] nbd_start_device+0x14c/0xb40 [ 554.402755][T14111] nbd_ioctl+0x514/0xc50 [ 554.403349][T14111] blkdev_ioctl+0x5f8/0xbb8 [ 554.404008][T14111] block_ioctl+0xa4/0x118 [ 554.404638][T14111] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.405354][T14111] invoke_syscall+0x98/0x2b8 [ 554.406102][T14111] el0_svc_common+0x138/0x258 [ 554.406790][T14111] do_el0_svc+0x58/0x14c [ 554.407430][T14111] el0_svc+0x78/0x1e0 [ 554.407968][T14111] el0t_64_sync_handler+0xcc/0xe4 [ 554.408691][T14111] el0t_64_sync+0x1a0/0x1a4 [ 554.409440][T14111] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 554.412303][T14110] block nbd0: shutting down sockets [ 554.539130][T14113] FAULT_INJECTION: forcing a failure. [ 554.539130][T14113] name failslab, interval 1, probability 0, space 0, times 0 [ 554.541030][T14113] CPU: 0 PID: 14113 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.542168][T14113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.543551][T14113] Call trace: [ 554.544015][T14113] dump_backtrace+0x0/0x43c [ 554.544653][T14113] show_stack+0x2c/0x3c [ 554.545239][T14113] __dump_stack+0x30/0x40 [ 554.545882][T14113] dump_stack_lvl+0xf8/0x160 [ 554.546504][T14113] dump_stack+0x1c/0x5c [ 554.547090][T14113] should_fail+0x3c0/0x51c [ 554.547819][T14113] __should_failslab+0xbc/0x10c [ 554.548534][T14113] should_failslab+0x10/0x28 [ 554.549196][T14113] slab_pre_alloc_hook+0x64/0xec [ 554.549927][T14113] __kmalloc_node+0xb8/0x520 [ 554.550637][T14113] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 554.551391][T14113] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 554.552276][T14113] nbd_start_device+0x14c/0xb40 [ 554.552961][T14113] nbd_ioctl+0x514/0xc50 [ 554.553568][T14113] blkdev_ioctl+0x5f8/0xbb8 [ 554.554213][T14113] block_ioctl+0xa4/0x118 [ 554.554797][T14113] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.555553][T14113] invoke_syscall+0x98/0x2b8 [ 554.556173][T14113] el0_svc_common+0x138/0x258 [ 554.556832][T14113] do_el0_svc+0x58/0x14c [ 554.557421][T14113] el0_svc+0x78/0x1e0 [ 554.557983][T14113] el0t_64_sync_handler+0xcc/0xe4 [ 554.558652][T14113] el0t_64_sync+0x1a0/0x1a4 [ 554.559685][T14113] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 554.562285][T14114] block nbd0: shutting down sockets [ 554.679099][T14116] FAULT_INJECTION: forcing a failure. [ 554.679099][T14116] name failslab, interval 1, probability 0, space 0, times 0 [ 554.681077][T14116] CPU: 1 PID: 14116 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.682254][T14116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.683698][T14116] Call trace: [ 554.684127][T14116] dump_backtrace+0x0/0x43c [ 554.684785][T14116] show_stack+0x2c/0x3c [ 554.685402][T14116] __dump_stack+0x30/0x40 [ 554.685987][T14116] dump_stack_lvl+0xf8/0x160 [ 554.686640][T14116] dump_stack+0x1c/0x5c [ 554.687247][T14116] should_fail+0x3c0/0x51c [ 554.687917][T14116] __should_failslab+0xbc/0x10c [ 554.688627][T14116] should_failslab+0x10/0x28 [ 554.689214][T14116] slab_pre_alloc_hook+0x64/0xec [ 554.689966][T14116] __kmalloc_node+0xb8/0x520 [ 554.690630][T14116] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 554.691443][T14116] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 554.692255][T14116] nbd_start_device+0x14c/0xb40 [ 554.692919][T14116] nbd_ioctl+0x514/0xc50 [ 554.693543][T14116] blkdev_ioctl+0x5f8/0xbb8 [ 554.694183][T14116] block_ioctl+0xa4/0x118 [ 554.694755][T14116] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.695393][T14116] invoke_syscall+0x98/0x2b8 [ 554.696023][T14116] el0_svc_common+0x138/0x258 [ 554.696647][T14116] do_el0_svc+0x58/0x14c [ 554.697234][T14116] el0_svc+0x78/0x1e0 [ 554.697756][T14116] el0t_64_sync_handler+0xcc/0xe4 [ 554.698440][T14116] el0t_64_sync+0x1a0/0x1a4 [ 554.699199][T14116] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 554.701749][T14117] block nbd0: shutting down sockets [ 554.839074][T14119] FAULT_INJECTION: forcing a failure. [ 554.839074][T14119] name failslab, interval 1, probability 0, space 0, times 0 [ 554.841060][T14119] CPU: 0 PID: 14119 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.842239][T14119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.843631][T14119] Call trace: [ 554.844144][T14119] dump_backtrace+0x0/0x43c [ 554.844906][T14119] show_stack+0x2c/0x3c [ 554.845538][T14119] __dump_stack+0x30/0x40 [ 554.846222][T14119] dump_stack_lvl+0xf8/0x160 [ 554.846919][T14119] dump_stack+0x1c/0x5c [ 554.847515][T14119] should_fail+0x3c0/0x51c [ 554.848151][T14119] __should_failslab+0xbc/0x10c [ 554.848884][T14119] should_failslab+0x10/0x28 [ 554.849524][T14119] slab_pre_alloc_hook+0x64/0xec [ 554.850284][T14119] __kmalloc_node+0xb8/0x520 [ 554.850933][T14119] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 554.851706][T14119] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 554.852530][T14119] nbd_start_device+0x14c/0xb40 [ 554.853191][T14119] nbd_ioctl+0x514/0xc50 [ 554.853817][T14119] blkdev_ioctl+0x5f8/0xbb8 [ 554.854439][T14119] block_ioctl+0xa4/0x118 [ 554.855088][T14119] __arm64_sys_ioctl+0x14c/0x1c8 [ 554.855763][T14119] invoke_syscall+0x98/0x2b8 [ 554.856412][T14119] el0_svc_common+0x138/0x258 [ 554.857104][T14119] do_el0_svc+0x58/0x14c [ 554.857814][T14119] el0_svc+0x78/0x1e0 [ 554.858400][T14119] el0t_64_sync_handler+0xcc/0xe4 [ 554.859152][T14119] el0t_64_sync+0x1a0/0x1a4 [ 554.859965][T14119] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 554.862449][T14120] block nbd0: shutting down sockets [ 554.989047][T14122] FAULT_INJECTION: forcing a failure. [ 554.989047][T14122] name failslab, interval 1, probability 0, space 0, times 0 [ 554.990814][T14122] CPU: 0 PID: 14122 Comm: syz-executor358 Not tainted syzkaller #0 [ 554.991819][T14122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 554.993122][T14122] Call trace: [ 554.993557][T14122] dump_backtrace+0x0/0x43c [ 554.994155][T14122] show_stack+0x2c/0x3c [ 554.994707][T14122] __dump_stack+0x30/0x40 [ 554.995303][T14122] dump_stack_lvl+0xf8/0x160 [ 554.995907][T14122] dump_stack+0x1c/0x5c [ 554.996468][T14122] should_fail+0x3c0/0x51c [ 554.997060][T14122] __should_failslab+0xbc/0x10c [ 554.997792][T14122] should_failslab+0x10/0x28 [ 554.998436][T14122] slab_pre_alloc_hook+0x64/0xec [ 554.999122][T14122] __kmalloc_node+0xb8/0x520 [ 554.999741][T14122] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.000500][T14122] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.001380][T14122] nbd_start_device+0x14c/0xb40 [ 555.002081][T14122] nbd_ioctl+0x514/0xc50 [ 555.002657][T14122] blkdev_ioctl+0x5f8/0xbb8 [ 555.003281][T14122] block_ioctl+0xa4/0x118 [ 555.003883][T14122] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.004567][T14122] invoke_syscall+0x98/0x2b8 [ 555.005183][T14122] el0_svc_common+0x138/0x258 [ 555.005822][T14122] do_el0_svc+0x58/0x14c [ 555.006440][T14122] el0_svc+0x78/0x1e0 [ 555.006975][T14122] el0t_64_sync_handler+0xcc/0xe4 [ 555.007693][T14122] el0t_64_sync+0x1a0/0x1a4 [ 555.008415][T14122] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.010810][T14123] block nbd0: shutting down sockets [ 555.139070][T14125] FAULT_INJECTION: forcing a failure. [ 555.139070][T14125] name failslab, interval 1, probability 0, space 0, times 0 [ 555.140859][T14125] CPU: 0 PID: 14125 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.141884][T14125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.143203][T14125] Call trace: [ 555.143655][T14125] dump_backtrace+0x0/0x43c [ 555.144269][T14125] show_stack+0x2c/0x3c [ 555.144863][T14125] __dump_stack+0x30/0x40 [ 555.145483][T14125] dump_stack_lvl+0xf8/0x160 [ 555.146116][T14125] dump_stack+0x1c/0x5c [ 555.146696][T14125] should_fail+0x3c0/0x51c [ 555.147330][T14125] __should_failslab+0xbc/0x10c [ 555.148015][T14125] should_failslab+0x10/0x28 [ 555.148639][T14125] slab_pre_alloc_hook+0x64/0xec [ 555.149320][T14125] __kmalloc_node+0xb8/0x520 [ 555.149980][T14125] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.150711][T14125] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.151477][T14125] nbd_start_device+0x14c/0xb40 [ 555.152135][T14125] nbd_ioctl+0x514/0xc50 [ 555.152753][T14125] blkdev_ioctl+0x5f8/0xbb8 [ 555.153426][T14125] block_ioctl+0xa4/0x118 [ 555.154017][T14125] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.154731][T14125] invoke_syscall+0x98/0x2b8 [ 555.155386][T14125] el0_svc_common+0x138/0x258 [ 555.156050][T14125] do_el0_svc+0x58/0x14c [ 555.156619][T14125] el0_svc+0x78/0x1e0 [ 555.157153][T14125] el0t_64_sync_handler+0xcc/0xe4 [ 555.157821][T14125] el0t_64_sync+0x1a0/0x1a4 [ 555.158928][T14125] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.161434][T14126] block nbd0: shutting down sockets [ 555.289069][T14128] FAULT_INJECTION: forcing a failure. [ 555.289069][T14128] name failslab, interval 1, probability 0, space 0, times 0 [ 555.290829][T14128] CPU: 0 PID: 14128 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.291916][T14128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.293338][T14128] Call trace: [ 555.293861][T14128] dump_backtrace+0x0/0x43c [ 555.294544][T14128] show_stack+0x2c/0x3c [ 555.295123][T14128] __dump_stack+0x30/0x40 [ 555.295746][T14128] dump_stack_lvl+0xf8/0x160 [ 555.296396][T14128] dump_stack+0x1c/0x5c [ 555.296953][T14128] should_fail+0x3c0/0x51c [ 555.297564][T14128] __should_failslab+0xbc/0x10c [ 555.298287][T14128] should_failslab+0x10/0x28 [ 555.298932][T14128] slab_pre_alloc_hook+0x64/0xec [ 555.299621][T14128] __kmalloc_node+0xb8/0x520 [ 555.300299][T14128] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.301095][T14128] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.301959][T14128] nbd_start_device+0x14c/0xb40 [ 555.302665][T14128] nbd_ioctl+0x514/0xc50 [ 555.303299][T14128] blkdev_ioctl+0x5f8/0xbb8 [ 555.303952][T14128] block_ioctl+0xa4/0x118 [ 555.304617][T14128] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.305306][T14128] invoke_syscall+0x98/0x2b8 [ 555.306000][T14128] el0_svc_common+0x138/0x258 [ 555.306631][T14128] do_el0_svc+0x58/0x14c [ 555.307253][T14128] el0_svc+0x78/0x1e0 [ 555.307861][T14128] el0t_64_sync_handler+0xcc/0xe4 [ 555.308579][T14128] el0t_64_sync+0x1a0/0x1a4 [ 555.309346][T14128] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.311798][T14129] block nbd0: shutting down sockets [ 555.439082][T14131] FAULT_INJECTION: forcing a failure. [ 555.439082][T14131] name failslab, interval 1, probability 0, space 0, times 0 [ 555.440857][T14131] CPU: 0 PID: 14131 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.442052][T14131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.443491][T14131] Call trace: [ 555.443909][T14131] dump_backtrace+0x0/0x43c [ 555.444497][T14131] show_stack+0x2c/0x3c [ 555.445193][T14131] __dump_stack+0x30/0x40 [ 555.445817][T14131] dump_stack_lvl+0xf8/0x160 [ 555.446498][T14131] dump_stack+0x1c/0x5c [ 555.447108][T14131] should_fail+0x3c0/0x51c [ 555.447799][T14131] __should_failslab+0xbc/0x10c [ 555.448583][T14131] should_failslab+0x10/0x28 [ 555.449255][T14131] slab_pre_alloc_hook+0x64/0xec [ 555.450050][T14131] __kmalloc_node+0xb8/0x520 [ 555.450814][T14131] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.451628][T14131] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.452483][T14131] nbd_start_device+0x14c/0xb40 [ 555.453207][T14131] nbd_ioctl+0x514/0xc50 [ 555.453834][T14131] blkdev_ioctl+0x5f8/0xbb8 [ 555.454520][T14131] block_ioctl+0xa4/0x118 [ 555.455157][T14131] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.455864][T14131] invoke_syscall+0x98/0x2b8 [ 555.456601][T14131] el0_svc_common+0x138/0x258 [ 555.457339][T14131] do_el0_svc+0x58/0x14c [ 555.457951][T14131] el0_svc+0x78/0x1e0 [ 555.458538][T14131] el0t_64_sync_handler+0xcc/0xe4 [ 555.459397][T14131] el0t_64_sync+0x1a0/0x1a4 [ 555.460158][T14131] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.462652][T14132] block nbd0: shutting down sockets [ 555.589045][T14134] FAULT_INJECTION: forcing a failure. [ 555.589045][T14134] name failslab, interval 1, probability 0, space 0, times 0 [ 555.590891][T14134] CPU: 0 PID: 14134 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.592018][T14134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.593446][T14134] Call trace: [ 555.593930][T14134] dump_backtrace+0x0/0x43c [ 555.594514][T14134] show_stack+0x2c/0x3c [ 555.595077][T14134] __dump_stack+0x30/0x40 [ 555.595719][T14134] dump_stack_lvl+0xf8/0x160 [ 555.596410][T14134] dump_stack+0x1c/0x5c [ 555.596999][T14134] should_fail+0x3c0/0x51c [ 555.597655][T14134] __should_failslab+0xbc/0x10c [ 555.598360][T14134] should_failslab+0x10/0x28 [ 555.599009][T14134] slab_pre_alloc_hook+0x64/0xec [ 555.599722][T14134] __kmalloc_node+0xb8/0x520 [ 555.600356][T14134] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.601119][T14134] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.601908][T14134] nbd_start_device+0x14c/0xb40 [ 555.602580][T14134] nbd_ioctl+0x514/0xc50 [ 555.603168][T14134] blkdev_ioctl+0x5f8/0xbb8 [ 555.603785][T14134] block_ioctl+0xa4/0x118 [ 555.604420][T14134] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.605137][T14134] invoke_syscall+0x98/0x2b8 [ 555.605757][T14134] el0_svc_common+0x138/0x258 [ 555.606376][T14134] do_el0_svc+0x58/0x14c [ 555.607024][T14134] el0_svc+0x78/0x1e0 [ 555.607566][T14134] el0t_64_sync_handler+0xcc/0xe4 [ 555.608304][T14134] el0t_64_sync+0x1a0/0x1a4 [ 555.609431][T14134] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.611963][T14135] block nbd0: shutting down sockets [ 555.739088][T14137] FAULT_INJECTION: forcing a failure. [ 555.739088][T14137] name failslab, interval 1, probability 0, space 0, times 0 [ 555.740952][T14137] CPU: 0 PID: 14137 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.742125][T14137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.743480][T14137] Call trace: [ 555.743908][T14137] dump_backtrace+0x0/0x43c [ 555.744486][T14137] show_stack+0x2c/0x3c [ 555.745031][T14137] __dump_stack+0x30/0x40 [ 555.745599][T14137] dump_stack_lvl+0xf8/0x160 [ 555.746265][T14137] dump_stack+0x1c/0x5c [ 555.746831][T14137] should_fail+0x3c0/0x51c [ 555.747516][T14137] __should_failslab+0xbc/0x10c [ 555.748222][T14137] should_failslab+0x10/0x28 [ 555.748862][T14137] slab_pre_alloc_hook+0x64/0xec [ 555.749560][T14137] __kmalloc_node+0xb8/0x520 [ 555.750206][T14137] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.750990][T14137] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.751796][T14137] nbd_start_device+0x14c/0xb40 [ 555.752499][T14137] nbd_ioctl+0x514/0xc50 [ 555.753108][T14137] blkdev_ioctl+0x5f8/0xbb8 [ 555.753719][T14137] block_ioctl+0xa4/0x118 [ 555.754310][T14137] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.754998][T14137] invoke_syscall+0x98/0x2b8 [ 555.755613][T14137] el0_svc_common+0x138/0x258 [ 555.756256][T14137] do_el0_svc+0x58/0x14c [ 555.756837][T14137] el0_svc+0x78/0x1e0 [ 555.757374][T14137] el0t_64_sync_handler+0xcc/0xe4 [ 555.758050][T14137] el0t_64_sync+0x1a0/0x1a4 [ 555.758783][T14137] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.761154][T14138] block nbd0: shutting down sockets [ 555.889060][T14140] FAULT_INJECTION: forcing a failure. [ 555.889060][T14140] name failslab, interval 1, probability 0, space 0, times 0 [ 555.890814][T14140] CPU: 0 PID: 14140 Comm: syz-executor358 Not tainted syzkaller #0 [ 555.891838][T14140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 555.893182][T14140] Call trace: [ 555.893673][T14140] dump_backtrace+0x0/0x43c [ 555.894276][T14140] show_stack+0x2c/0x3c [ 555.894833][T14140] __dump_stack+0x30/0x40 [ 555.895397][T14140] dump_stack_lvl+0xf8/0x160 [ 555.896054][T14140] dump_stack+0x1c/0x5c [ 555.896676][T14140] should_fail+0x3c0/0x51c [ 555.897280][T14140] __should_failslab+0xbc/0x10c [ 555.897957][T14140] should_failslab+0x10/0x28 [ 555.898602][T14140] slab_pre_alloc_hook+0x64/0xec [ 555.899368][T14140] __kmalloc_node+0xb8/0x520 [ 555.900093][T14140] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 555.900909][T14140] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 555.901723][T14140] nbd_start_device+0x14c/0xb40 [ 555.902426][T14140] nbd_ioctl+0x514/0xc50 [ 555.903025][T14140] blkdev_ioctl+0x5f8/0xbb8 [ 555.903692][T14140] block_ioctl+0xa4/0x118 [ 555.904451][T14140] __arm64_sys_ioctl+0x14c/0x1c8 [ 555.905291][T14140] invoke_syscall+0x98/0x2b8 [ 555.906069][T14140] el0_svc_common+0x138/0x258 [ 555.906805][T14140] do_el0_svc+0x58/0x14c [ 555.907471][T14140] el0_svc+0x78/0x1e0 [ 555.908093][T14140] el0t_64_sync_handler+0xcc/0xe4 [ 555.908878][T14140] el0t_64_sync+0x1a0/0x1a4 [ 555.909652][T14140] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 555.912241][T14141] block nbd0: shutting down sockets [ 556.059101][T14143] FAULT_INJECTION: forcing a failure. [ 556.059101][T14143] name failslab, interval 1, probability 0, space 0, times 0 [ 556.061025][T14143] CPU: 0 PID: 14143 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.062207][T14143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.063699][T14143] Call trace: [ 556.064167][T14143] dump_backtrace+0x0/0x43c [ 556.064857][T14143] show_stack+0x2c/0x3c [ 556.065481][T14143] __dump_stack+0x30/0x40 [ 556.066091][T14143] dump_stack_lvl+0xf8/0x160 [ 556.066763][T14143] dump_stack+0x1c/0x5c [ 556.067337][T14143] should_fail+0x3c0/0x51c [ 556.067961][T14143] __should_failslab+0xbc/0x10c [ 556.068698][T14143] should_failslab+0x10/0x28 [ 556.069354][T14143] slab_pre_alloc_hook+0x64/0xec [ 556.070130][T14143] __kmalloc_node+0xb8/0x520 [ 556.070767][T14143] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 556.071528][T14143] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 556.072293][T14143] nbd_start_device+0x14c/0xb40 [ 556.073006][T14143] nbd_ioctl+0x514/0xc50 [ 556.073608][T14143] blkdev_ioctl+0x5f8/0xbb8 [ 556.074223][T14143] block_ioctl+0xa4/0x118 [ 556.074817][T14143] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.075472][T14143] invoke_syscall+0x98/0x2b8 [ 556.076096][T14143] el0_svc_common+0x138/0x258 [ 556.076758][T14143] do_el0_svc+0x58/0x14c [ 556.077337][T14143] el0_svc+0x78/0x1e0 [ 556.077890][T14143] el0t_64_sync_handler+0xcc/0xe4 [ 556.078664][T14143] el0t_64_sync+0x1a0/0x1a4 [ 556.079378][T14143] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 556.081831][T14144] block nbd0: shutting down sockets [ 556.219051][T14146] FAULT_INJECTION: forcing a failure. [ 556.219051][T14146] name failslab, interval 1, probability 0, space 0, times 0 [ 556.221003][T14146] CPU: 0 PID: 14146 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.222128][T14146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.223482][T14146] Call trace: [ 556.223939][T14146] dump_backtrace+0x0/0x43c [ 556.224589][T14146] show_stack+0x2c/0x3c [ 556.225166][T14146] __dump_stack+0x30/0x40 [ 556.225799][T14146] dump_stack_lvl+0xf8/0x160 [ 556.226444][T14146] dump_stack+0x1c/0x5c [ 556.227031][T14146] should_fail+0x3c0/0x51c [ 556.227715][T14146] __should_failslab+0xbc/0x10c [ 556.228445][T14146] should_failslab+0x10/0x28 [ 556.229070][T14146] slab_pre_alloc_hook+0x64/0xec [ 556.229788][T14146] __kmalloc_node+0xb8/0x520 [ 556.230462][T14146] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 556.231256][T14146] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 556.232100][T14146] nbd_start_device+0x14c/0xb40 [ 556.232762][T14146] nbd_ioctl+0x514/0xc50 [ 556.233370][T14146] blkdev_ioctl+0x5f8/0xbb8 [ 556.233986][T14146] block_ioctl+0xa4/0x118 [ 556.234601][T14146] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.235313][T14146] invoke_syscall+0x98/0x2b8 [ 556.236011][T14146] el0_svc_common+0x138/0x258 [ 556.236685][T14146] do_el0_svc+0x58/0x14c [ 556.237278][T14146] el0_svc+0x78/0x1e0 [ 556.237859][T14146] el0t_64_sync_handler+0xcc/0xe4 [ 556.238582][T14146] el0t_64_sync+0x1a0/0x1a4 [ 556.239342][T14146] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 556.241727][T14147] block nbd0: shutting down sockets [ 556.369052][T14149] FAULT_INJECTION: forcing a failure. [ 556.369052][T14149] name failslab, interval 1, probability 0, space 0, times 0 [ 556.371001][T14149] CPU: 0 PID: 14149 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.372109][T14149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.373491][T14149] Call trace: [ 556.373942][T14149] dump_backtrace+0x0/0x43c [ 556.374556][T14149] show_stack+0x2c/0x3c [ 556.375127][T14149] __dump_stack+0x30/0x40 [ 556.375687][T14149] dump_stack_lvl+0xf8/0x160 [ 556.376294][T14149] dump_stack+0x1c/0x5c [ 556.376828][T14149] should_fail+0x3c0/0x51c [ 556.377444][T14149] __should_failslab+0xbc/0x10c [ 556.378136][T14149] should_failslab+0x10/0x28 [ 556.378758][T14149] slab_pre_alloc_hook+0x64/0xec [ 556.379429][T14149] __kmalloc_node+0xb8/0x520 [ 556.380081][T14149] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 556.380865][T14149] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 556.381748][T14149] nbd_start_device+0x14c/0xb40 [ 556.382507][T14149] nbd_ioctl+0x514/0xc50 [ 556.383134][T14149] blkdev_ioctl+0x5f8/0xbb8 [ 556.383826][T14149] block_ioctl+0xa4/0x118 [ 556.384476][T14149] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.385178][T14149] invoke_syscall+0x98/0x2b8 [ 556.385859][T14149] el0_svc_common+0x138/0x258 [ 556.386535][T14149] do_el0_svc+0x58/0x14c [ 556.387141][T14149] el0_svc+0x78/0x1e0 [ 556.387736][T14149] el0t_64_sync_handler+0xcc/0xe4 [ 556.388521][T14149] el0t_64_sync+0x1a0/0x1a4 [ 556.389952][T14149] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 556.392453][T14150] block nbd0: shutting down sockets [ 556.497088][T14153] block nbd0: Device being setup by another task [ 556.498453][T14152] FAULT_INJECTION: forcing a failure. [ 556.498453][T14152] name failslab, interval 1, probability 0, space 0, times 0 [ 556.500240][T14152] CPU: 1 PID: 14152 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.501364][T14152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.502711][T14152] Call trace: [ 556.503146][T14152] dump_backtrace+0x0/0x43c [ 556.503812][T14152] show_stack+0x2c/0x3c [ 556.504409][T14152] __dump_stack+0x30/0x40 [ 556.505091][T14152] dump_stack_lvl+0xf8/0x160 [ 556.505819][T14152] dump_stack+0x1c/0x5c [ 556.506399][T14152] should_fail+0x3c0/0x51c [ 556.507039][T14152] __should_failslab+0xbc/0x10c [ 556.507759][T14152] should_failslab+0x10/0x28 [ 556.508415][T14152] slab_pre_alloc_hook+0x64/0xec [ 556.509152][T14152] kmem_cache_alloc+0x94/0x3e4 [ 556.509840][T14152] new_inode_pseudo+0x10c/0x1fc [ 556.510539][T14152] new_inode+0x38/0x174 [ 556.511222][T14152] debugfs_create_dir+0xec/0x3f4 [ 556.512040][T14152] nbd_start_device+0x3c8/0xb40 [ 556.512699][T14152] nbd_ioctl+0x514/0xc50 [ 556.513286][T14152] blkdev_ioctl+0x5f8/0xbb8 [ 556.513996][T14152] block_ioctl+0xa4/0x118 [ 556.514673][T14152] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.515367][T14152] invoke_syscall+0x98/0x2b8 [ 556.516071][T14152] el0_svc_common+0x138/0x258 [ 556.516783][T14152] do_el0_svc+0x58/0x14c [ 556.517407][T14152] el0_svc+0x78/0x1e0 [ 556.517955][T14152] el0t_64_sync_handler+0xcc/0xe4 [ 556.518637][T14152] el0t_64_sync+0x1a0/0x1a4 [ 556.519346][T14152] debugfs: out of free dentries, can not create directory 'nbd0' [ 556.520478][T14152] block nbd0: Failed to create debugfs dir for 'nbd0' [ 556.549211][T14153] block nbd0: shutting down sockets [ 556.667135][T14156] block nbd0: Device being setup by another task [ 556.668154][T14155] FAULT_INJECTION: forcing a failure. [ 556.668154][T14155] name failslab, interval 1, probability 0, space 0, times 0 [ 556.670170][T14155] CPU: 0 PID: 14155 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.671283][T14155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.672689][T14155] Call trace: [ 556.673133][T14155] dump_backtrace+0x0/0x43c [ 556.673801][T14155] show_stack+0x2c/0x3c [ 556.674386][T14155] __dump_stack+0x30/0x40 [ 556.675023][T14155] dump_stack_lvl+0xf8/0x160 [ 556.675640][T14155] dump_stack+0x1c/0x5c [ 556.676215][T14155] should_fail+0x3c0/0x51c [ 556.676862][T14155] __should_failslab+0xbc/0x10c [ 556.677569][T14155] should_failslab+0x10/0x28 [ 556.678215][T14155] slab_pre_alloc_hook+0x64/0xec [ 556.678956][T14155] kmem_cache_alloc+0x94/0x3e4 [ 556.679687][T14155] new_inode_pseudo+0x10c/0x1fc [ 556.680351][T14155] new_inode+0x38/0x174 [ 556.680986][T14155] debugfs_create_dir+0xec/0x3f4 [ 556.681697][T14155] nbd_start_device+0x3c8/0xb40 [ 556.682466][T14155] nbd_ioctl+0x514/0xc50 [ 556.683172][T14155] blkdev_ioctl+0x5f8/0xbb8 [ 556.683930][T14155] block_ioctl+0xa4/0x118 [ 556.684621][T14155] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.685411][T14155] invoke_syscall+0x98/0x2b8 [ 556.686132][T14155] el0_svc_common+0x138/0x258 [ 556.686841][T14155] do_el0_svc+0x58/0x14c [ 556.687470][T14155] el0_svc+0x78/0x1e0 [ 556.688095][T14155] el0t_64_sync_handler+0xcc/0xe4 [ 556.688880][T14155] el0t_64_sync+0x1a0/0x1a4 [ 556.689651][T14155] debugfs: out of free dentries, can not create directory 'nbd0' [ 556.690734][T14155] block nbd0: Failed to create debugfs dir for 'nbd0' [ 556.712193][T14156] block nbd0: shutting down sockets [ 556.849303][T14158] FAULT_INJECTION: forcing a failure. [ 556.849303][T14158] name failslab, interval 1, probability 0, space 0, times 0 [ 556.851199][T14158] CPU: 1 PID: 14158 Comm: syz-executor358 Not tainted syzkaller #0 [ 556.852305][T14158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 556.853791][T14158] Call trace: [ 556.854231][T14158] dump_backtrace+0x0/0x43c [ 556.854805][T14158] show_stack+0x2c/0x3c [ 556.855372][T14158] __dump_stack+0x30/0x40 [ 556.855994][T14158] dump_stack_lvl+0xf8/0x160 [ 556.856673][T14158] dump_stack+0x1c/0x5c [ 556.857345][T14158] should_fail+0x3c0/0x51c [ 556.858036][T14158] __should_failslab+0xbc/0x10c [ 556.858801][T14158] should_failslab+0x10/0x28 [ 556.859534][T14158] slab_pre_alloc_hook+0x64/0xec [ 556.860327][T14158] __kmalloc_node+0xb8/0x520 [ 556.861070][T14158] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 556.861935][T14158] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 556.862829][T14158] nbd_start_device+0x14c/0xb40 [ 556.863554][T14158] nbd_ioctl+0x514/0xc50 [ 556.864180][T14158] blkdev_ioctl+0x5f8/0xbb8 [ 556.864839][T14158] block_ioctl+0xa4/0x118 [ 556.865469][T14158] __arm64_sys_ioctl+0x14c/0x1c8 [ 556.866271][T14158] invoke_syscall+0x98/0x2b8 [ 556.867060][T14158] el0_svc_common+0x138/0x258 [ 556.867832][T14158] do_el0_svc+0x58/0x14c [ 556.868537][T14158] el0_svc+0x78/0x1e0 [ 556.869192][T14158] el0t_64_sync_handler+0xcc/0xe4 [ 556.869993][T14158] el0t_64_sync+0x1a0/0x1a4 [ 556.870822][T14158] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 556.873318][T14159] block nbd0: shutting down sockets [ 556.999076][T14161] FAULT_INJECTION: forcing a failure. [ 556.999076][T14161] name failslab, interval 1, probability 0, space 0, times 0 [ 557.000916][T14161] CPU: 1 PID: 14161 Comm: syz-executor358 Not tainted syzkaller #0 [ 557.002093][T14161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 [ 557.003575][T14161] Call trace: [ 557.004000][T14161] dump_backtrace+0x0/0x43c [ 557.004689][T14161] show_stack+0x2c/0x3c [ 557.005249][T14161] __dump_stack+0x30/0x40 [ 557.005845][T14161] dump_stack_lvl+0xf8/0x160 [ 557.006461][T14161] dump_stack+0x1c/0x5c [ 557.007028][T14161] should_fail+0x3c0/0x51c [ 557.007694][T14161] __should_failslab+0xbc/0x10c [ 557.008382][T14161] should_failslab+0x10/0x28 [ 557.009064][T14161] slab_pre_alloc_hook+0x64/0xec [ 557.009803][T14161] __kmalloc_node+0xb8/0x520 [ 557.010554][T14161] blk_mq_realloc_hw_ctxs+0xb8/0x133c [ 557.011362][T14161] blk_mq_update_nr_hw_queues+0x62c/0xbfc [ 557.012295][T14161] nbd_start_device+0x14c/0xb40 [ 557.012969][T14161] nbd_ioctl+0x514/0xc50 [ 557.013618][T14161] blkdev_ioctl+0x5f8/0xbb8 [ 557.014246][T14161] block_ioctl+0xa4/0x118 [ 557.014880][T14161] __arm64_sys_ioctl+0x14c/0x1c8 [ 557.015564][T14161] invoke_syscall+0x98/0x2b8 [ 557.016216][T14161] el0_svc_common+0x138/0x258 [ 557.016889][T14161] do_el0_svc+0x58/0x14c [ 557.017522][T14161] el0_svc+0x78/0x1e0 [ 557.018090][T14161] el0t_64_sync_handler+0xcc/0xe4 [ 557.018863][T14161] el0t_64_sync+0x1a0/0x1a4 [ 557.019564][T14161] Increasing nr_hw_queues to 2 fails, fallback to 1 [ 557.022395][T14162] block nbd0: shutting down sockets