[ 274.209292][ T48] Bluetooth: hci0: command 0x0409 tx timeout [ 276.298738][ T48] Bluetooth: hci0: command 0x041b tx timeout [ 278.368707][ T4407] Bluetooth: hci0: command 0x040f tx timeout [ 280.448743][ T4407] Bluetooth: hci0: command 0x0419 tx timeout [ 300.289253][ T52] block nbd0: Possible stuck request ffff88801efd1600: control (read@0,4096B). Runtime 210 seconds [ 330.368755][ T52] block nbd0: Possible stuck request ffff88801efd1600: control (read@0,4096B). Runtime 240 seconds [ 360.448785][ T52] block nbd0: Possible stuck request ffff88801efd1600: control (read@0,4096B). Runtime 270 seconds [ 390.528700][ T52] block nbd0: Possible stuck request ffff88801efd1600: control (read@0,4096B). Runtime 300 seconds [ 395.168664][ T4407] Bluetooth: hci0: command 0x0406 tx timeout [ 420.608728][ T52] block nbd0: Possible stuck request ffff88801efd1600: control (read@0,4096B). Runtime 330 seconds [ 428.938705][ T28] INFO: task udevd:5074 blocked for more than 143 seconds. [ 428.946117][ T28] Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 [ 428.953731][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 428.962446][ T28] task:udevd state:D stack:26480 pid:5074 ppid:4452 flags:0x00004006 [ 428.971792][ T28] Call Trace: [ 428.975094][ T28] [ 428.978007][ T28] __schedule+0xc9a/0x5880 [ 428.982467][ T28] ? mark_lock.part.0+0xee/0x1970 [ 428.987591][ T28] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 428.993634][ T28] ? __lock_acquire+0xbe1/0x5df0 [ 428.998630][ T28] ? io_schedule_timeout+0x150/0x150 [ 429.003899][ T28] ? find_held_lock+0x2d/0x110 [ 429.008978][ T28] ? lock_downgrade+0x690/0x690 [ 429.013847][ T28] schedule+0xde/0x1a0 [ 429.017899][ T28] io_schedule+0xbe/0x130 [ 429.022264][ T28] folio_wait_bit_common+0x394/0x9b0 [ 429.027563][ T28] ? filemap_get_folios_contig+0xa70/0xa70 [ 429.033540][ T28] ? filemap_get_entry+0x225/0x430 [ 429.038995][ T28] ? __folio_lock_or_retry+0x240/0x240 [ 429.044464][ T28] ? folio_unlock+0xd0/0xd0 [ 429.049028][ T28] __filemap_get_folio+0x789/0x990 [ 429.054175][ T28] truncate_inode_pages_range+0x350/0xf10 [ 429.059963][ T28] ? truncate_inode_partial_folio+0x750/0x750 [ 429.066044][ T28] ? has_bh_in_lru+0x8f/0xe0 [ 429.070674][ T28] ? smp_call_function_many_cond+0x40a/0x15a0 [ 429.076752][ T28] ? generic_remap_file_range_prep+0x50/0x50 [ 429.082763][ T28] ? __brelse+0xa0/0xa0 [ 429.086930][ T28] ? trace_ipi_send_cpu+0x1d0/0x1d0 [ 429.092148][ T28] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 429.097711][ T28] ? __brelse+0xa0/0xa0 [ 429.101905][ T28] blkdev_flush_mapping+0x152/0x320 [ 429.107118][ T28] blkdev_put_whole+0xcb/0xf0 [ 429.111843][ T28] blkdev_put+0x220/0x780 [ 429.116183][ T28] blkdev_close+0x68/0x80 [ 429.120549][ T28] __fput+0x27c/0xa90 [ 429.124536][ T28] ? blkdev_fsync+0xa0/0xa0 [ 429.129066][ T28] task_work_run+0x16f/0x270 [ 429.133664][ T28] ? task_work_cancel+0x30/0x30 [ 429.138490][ T28] ? do_raw_spin_unlock+0x175/0x230 [ 429.143937][ T28] do_exit+0xad3/0x2960 [ 429.148104][ T28] ? find_held_lock+0x2d/0x110 [ 429.152902][ T28] ? get_signal+0x89d/0x25b0 [ 429.157502][ T28] ? mm_update_next_owner+0x7b0/0x7b0 [ 429.162988][ T28] ? do_raw_spin_lock+0x124/0x2b0 [ 429.168042][ T28] ? spin_bug+0x1c0/0x1c0 [ 429.172431][ T28] do_group_exit+0xd4/0x2a0 [ 429.176951][ T28] get_signal+0x2315/0x25b0 [ 429.181603][ T28] ? exit_signals+0x910/0x910 [ 429.186291][ T28] ? do_sys_openat2+0xa1/0x4c0 [ 429.191088][ T28] arch_do_signal_or_restart+0x79/0x5c0 [ 429.196905][ T28] ? get_sigframe_size+0x10/0x10 [ 429.201907][ T28] ? __ia32_sys_open+0x1c0/0x1c0 [ 429.206861][ T28] exit_to_user_mode_prepare+0x11f/0x240 [ 429.212521][ T28] syscall_exit_to_user_mode+0x1d/0x50 [ 429.218000][ T28] do_syscall_64+0x46/0xb0 [ 429.222480][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 429.228403][ T28] RIP: 0033:0x7fb579f169a4 [ 429.232855][ T28] RSP: 002b:00007ffe40143190 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 429.241318][ T28] RAX: 0000000000000008 RBX: 00005627830a2550 RCX: 00007fb579f169a4 [ 429.249372][ T28] RDX: 00000000000a0800 RSI: 000056278307e660 RDI: 00000000ffffff9c [ 429.257345][ T28] RBP: 000056278307e660 R08: 0000000000000001 R09: 00007ffe401af080 [ 429.265338][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800 [ 429.273333][ T28] R13: 0000562783092540 R14: 0000000000000001 R15: 000056278307d910 [ 429.281349][ T28] [ 429.284388][ T28] INFO: task syz-executor.0:5208 blocked for more than 143 seconds. [ 429.292444][ T28] Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 [ 429.300012][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.308720][ T28] task:syz-executor.0 state:D stack:28312 pid:5208 ppid:5185 flags:0x00000004 [ 429.317934][ T28] Call Trace: [ 429.321255][ T28] [ 429.324187][ T28] __schedule+0xc9a/0x5880 [ 429.328623][ T28] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 429.334692][ T28] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 429.340714][ T28] ? io_schedule_timeout+0x150/0x150 [ 429.346025][ T28] ? __mutex_lock+0xa36/0x1350 [ 429.350824][ T28] schedule+0xde/0x1a0 [ 429.354894][ T28] schedule_preempt_disabled+0x13/0x20 [ 429.360373][ T28] __mutex_lock+0xa3b/0x1350 [ 429.364968][ T28] ? blkdev_get_by_dev.part.0+0x95/0xb80 [ 429.370628][ T28] ? mutex_lock_io_nested+0x11a0/0x11a0 [ 429.376182][ T28] ? _atomic_dec_and_lock+0x96/0x100 [ 429.381506][ T28] ? disk_block_events+0x21/0x140 [ 429.386544][ T28] blkdev_get_by_dev.part.0+0x95/0xb80 [ 429.392025][ T28] ? devcgroup_check_permission+0x1aa/0x4a0 [ 429.397924][ T28] blkdev_get_by_dev+0x6f/0x90 [ 429.402851][ T28] blkdev_open+0x140/0x2d0 [ 429.407290][ T28] do_dentry_open+0x6cc/0x13f0 [ 429.412364][ T28] ? blkdev_close+0x80/0x80 [ 429.416904][ T28] path_openat+0x1baa/0x2750 [ 429.421538][ T28] ? path_lookupat+0x840/0x840 [ 429.426311][ T28] do_filp_open+0x1ba/0x410 [ 429.430853][ T28] ? may_open_dev+0xf0/0xf0 [ 429.435398][ T28] ? find_held_lock+0x2d/0x110 [ 429.440224][ T28] ? do_raw_spin_lock+0x124/0x2b0 [ 429.445270][ T28] ? spin_bug+0x1c0/0x1c0 [ 429.449680][ T28] ? _raw_spin_unlock+0x28/0x40 [ 429.454544][ T28] ? alloc_fd+0x2e4/0x750 [ 429.458900][ T28] do_sys_openat2+0x16d/0x4c0 [ 429.463592][ T28] ? build_open_flags+0x720/0x720 [ 429.468671][ T28] ? do_user_addr_fault+0x367/0x1210 [ 429.473965][ T28] ? lock_downgrade+0x690/0x690 [ 429.478851][ T28] __x64_sys_openat+0x143/0x1f0 [ 429.483708][ T28] ? __ia32_sys_open+0x1c0/0x1c0 [ 429.488854][ T28] ? syscall_enter_from_user_mode+0x26/0x80 [ 429.494765][ T28] do_syscall_64+0x39/0xb0 [ 429.499408][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 429.505315][ T28] RIP: 0033:0x418484 [ 429.509234][ T28] RSP: 002b:00007ffaddec4cc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 [ 429.517648][ T28] RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 0000000000418484 [ 429.525665][ T28] RDX: 0000000000000000 RSI: 00007ffaddec4d60 RDI: 00000000ffffff9c [ 429.533682][ T28] RBP: 00007ffaddec4d60 R08: 0000000000000000 R09: 002364626e2f7665 [ 429.541675][ T28] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 [ 429.549764][ T28] R13: 00007fff1fd0755f R14: 00007ffaddec5300 R15: 0000000000022000 [ 429.557748][ T28] [ 429.560815][ T28] [ 429.560815][ T28] Showing all locks held in the system: [ 429.568599][ T28] 1 lock held by rcu_tasks_kthre/13: [ 429.573881][ T28] #0: ffffffff8c798430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [ 429.584395][ T28] 1 lock held by rcu_tasks_trace/14: [ 429.589708][ T28] #0: ffffffff8c798130 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [ 429.600710][ T28] 1 lock held by khungtaskd/28: [ 429.605599][ T28] #0: ffffffff8c799040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 [ 429.615573][ T28] 2 locks held by getty/4762: [ 429.620261][ T28] #0: ffff88814ac0f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 [ 429.630015][ T28] #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 [ 429.640149][ T28] 1 lock held by udevd/5074: [ 429.644720][ T28] #0: ffff8881417164c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xba/0x780 [ 429.654068][ T28] 1 lock held by syz-executor.0/5208: [ 429.659459][ T28] #0: ffff8881417164c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 [ 429.670126][ T28] [ 429.672443][ T28] ============================================= [ 429.672443][ T28] [ 429.680870][ T28] NMI backtrace for cpu 0 [ 429.685186][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 [ 429.694970][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 429.705010][ T28] Call Trace: [ 429.708283][ T28] [ 429.711286][ T28] dump_stack_lvl+0xd9/0x150 [ 429.715878][ T28] nmi_cpu_backtrace+0x29c/0x350 [ 429.720814][ T28] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 429.726008][ T28] nmi_trigger_cpumask_backtrace+0x2a4/0x300 [ 429.731985][ T28] watchdog+0xe16/0x1090 [ 429.736225][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 429.742200][ T28] kthread+0x344/0x440 [ 429.746279][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 429.751902][ T28] ret_from_fork+0x1f/0x30 [ 429.756321][ T28] [ 429.759418][ T28] Sending NMI from CPU 0 to CPUs 1: [ 429.764626][ C1] NMI backtrace for cpu 1 [ 429.764633][ C1] CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 [ 429.764647][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 429.764657][ C1] Workqueue: events_unbound toggle_allocation_gate [ 429.764674][ C1] RIP: 0010:smp_call_function_many_cond+0x67f/0x15a0 [ 429.764693][ C1] Code: 89 ee e8 f4 3c 0b 00 85 ed 74 48 48 8b 44 24 08 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 b3 40 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 ad 0c 00 00 8b 43 08 31 [ 429.764705][ C1] RSP: 0018:ffffc90000117948 EFLAGS: 00000293 [ 429.764714][ C1] RAX: 0000000000000000 RBX: ffff8880b98451e0 RCX: 0000000000000000 [ 429.764722][ C1] RDX: ffff888015a6d940 RSI: ffffffff8179042d RDI: 0000000000000005 [ 429.764730][ C1] RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 [ 429.764738][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017308a3d [ 429.764745][ C1] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 [ 429.764755][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 429.764768][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.764776][ C1] CR2: 00007f4451f73000 CR3: 000000000c571000 CR4: 0000000000350ee0 [ 429.764784][ C1] Call Trace: [ 429.764787][ C1] [ 429.764793][ C1] ? optimize_nops+0x3e0/0x3e0 [ 429.764811][ C1] ? trace_ipi_send_cpu+0x1d0/0x1d0 [ 429.764827][ C1] ? text_poke_memset+0x60/0x60 [ 429.764843][ C1] ? optimize_nops+0x3e0/0x3e0 [ 429.764858][ C1] on_each_cpu_cond_mask+0x5a/0xa0 [ 429.764874][ C1] text_poke_bp_batch+0x634/0x770 [ 429.764889][ C1] ? __kmem_cache_alloc_node+0xc3/0x320 [ 429.764909][ C1] ? do_sync_core+0x30/0x30 [ 429.764925][ C1] ? arch_jump_label_transform_queue+0xa4/0x100 [ 429.764940][ C1] ? __jump_label_update+0x296/0x410 [ 429.764954][ C1] text_poke_finish+0x1a/0x30 [ 429.764970][ C1] arch_jump_label_transform_apply+0x17/0x30 [ 429.764983][ C1] jump_label_update+0x32f/0x410 [ 429.764996][ C1] static_key_enable_cpuslocked+0x1b5/0x270 [ 429.765010][ C1] static_key_enable+0x1a/0x20 [ 429.765021][ C1] toggle_allocation_gate+0xf8/0x230 [ 429.765036][ C1] ? wake_up_kfence_timer+0x30/0x30 [ 429.765052][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.765071][ C1] process_one_work+0x99a/0x15e0 [ 429.765091][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 429.765110][ C1] ? spin_bug+0x1c0/0x1c0 [ 429.765128][ C1] ? _raw_spin_lock_irq+0x45/0x50 [ 429.765146][ C1] worker_thread+0x67d/0x10c0 [ 429.765170][ C1] ? process_one_work+0x15e0/0x15e0 [ 429.765188][ C1] kthread+0x344/0x440 [ 429.765202][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 429.765218][ C1] ret_from_fork+0x1f/0x30 [ 429.765239][ C1] [ 429.767691][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 430.046058][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0 [ 430.055850][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 430.065889][ T28] Call Trace: [ 430.069153][ T28] [ 430.072072][ T28] dump_stack_lvl+0xd9/0x150 [ 430.076667][ T28] panic+0x686/0x730 [ 430.080555][ T28] ? panic_smp_self_stop+0xa0/0xa0 [ 430.085729][ T28] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 430.090913][ T28] ? preempt_schedule_thunk+0x1a/0x20 [ 430.096724][ T28] ? watchdog+0xbe8/0x1090 [ 430.101138][ T28] watchdog+0xbf9/0x1090 [ 430.105376][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 430.111446][ T28] kthread+0x344/0x440 [ 430.115505][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 430.121130][ T28] ret_from_fork+0x1f/0x30 [ 430.125571][ T28] [ 430.129410][ T28] Kernel Offset: disabled [ 430.133718][ T28] Rebooting in 86400 seconds..