Warning: Permanently added '10.128.0.109' (ECDSA) to the list of known hosts.
executing program
[ 494.175390][ T5095] nbd0: detected capacity change from 0 to 10
[ 494.293458][ T4375] block nbd0: Receive control failed (result -104)
[ 524.373305][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 30 seconds
[ 554.252694][ T4421] udevd[4421]: worker [5094] /devices/virtual/block/nbd0 is taking a long time
[ 554.452851][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 60 seconds
[ 584.532835][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 90 seconds
[ 614.612848][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 120 seconds
[ 644.692853][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 150 seconds
executing program
[ 674.412850][ T4421] udevd[4421]: worker [5094] /devices/virtual/block/nbd0 timeout; kill it
[ 674.421527][ T4421] udevd[4421]: seq 7513 '/devices/virtual/block/nbd0' killed
[ 674.421653][ T5094] ldm_validate_partition_table(): Disk read failed.
[ 674.435758][ T5094] Dev nbd0: unable to read RDB block 0
[ 674.441237][ T5094] nbd0: unable to read partition table
[ 674.446965][ T5094] nbd0: partition table beyond EOD, truncated
[ 674.772774][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 180 seconds
[ 704.852857][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 210 seconds
[ 734.932838][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 240 seconds
[ 765.012809][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 270 seconds
[ 795.092797][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 300 seconds
[ 825.172795][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 330 seconds
[ 855.252807][ T990] block nbd0: Possible stuck request ffff88801f870000: control (read@0,4096B). Runtime 360 seconds
[ 859.732598][ T28] INFO: task udevd:5094 blocked for more than 143 seconds.
[ 859.739932][ T28] Not tainted 6.2.0-rc2-syzkaller-00010-g69b41ac87e4a #0
[ 859.747769][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 859.756559][ T28] task:udevd state:D stack:24576 pid:5094 ppid:4421 flags:0x00004006
[ 859.765997][ T28] Call Trace:
[ 859.769287][ T28]
[ 859.772209][ T28] __schedule+0x9d1/0xe40
[ 859.776865][ T28] ? release_firmware_map_entry+0x180/0x180
[ 859.782909][ T28] ? lockdep_hardirqs_on_prepare+0x448/0x7b0
[ 859.788932][ T28] ? print_irqtrace_events+0x220/0x220
[ 859.794550][ T28] ? _raw_spin_lock_irq+0xdb/0x110
[ 859.799710][ T28] schedule+0xcb/0x190
[ 859.803990][ T28] io_schedule+0x83/0x100
[ 859.808338][ T28] folio_wait_bit_common+0x8ca/0x1390
[ 859.813986][ T28] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 859.820041][ T28] ? folio_wait_bit+0x20/0x20
[ 859.824905][ T28] ? pfn_swap_entry_to_page+0x370/0x370
[ 859.830478][ T28] __filemap_get_folio+0x566/0x1230
[ 859.835864][ T28] ? page_cache_prev_miss+0x500/0x500
[ 859.841259][ T28] truncate_inode_pages_range+0x5a4/0x1650
[ 859.847300][ T28] ? mapping_evict_folio+0x570/0x570
[ 859.852744][ T28] ? filemap_check_errors+0xcf/0x110
[ 859.858055][ T28] ? invalidate_bh_lrus+0x30/0x30
[ 859.863446][ T28] ? __bread_gfp+0x320/0x320
[ 859.868063][ T28] ? invalidate_bh_lrus+0x30/0x30
[ 859.873154][ T28] blkdev_flush_mapping+0x153/0x2c0
[ 859.878524][ T28] blkdev_put+0x4a5/0x730
[ 859.883020][ T28] blkdev_close+0x55/0x80
[ 859.887358][ T28] ? blkdev_open+0x2e0/0x2e0
[ 859.891934][ T28] __fput+0x3ba/0x880
[ 859.896203][ T28] task_work_run+0x243/0x300
[ 859.900880][ T28] ? task_work_cancel+0x290/0x290
[ 859.906072][ T28] ? switch_task_namespaces+0xaf/0xe0
[ 859.911499][ T28] do_exit+0x644/0x2150
[ 859.915884][ T28] ? trace_lock_release+0x95/0x220
[ 859.921018][ T28] ? mm_update_next_owner+0x6d0/0x6d0
[ 859.926561][ T28] ? lockdep_hardirqs_on_prepare+0x448/0x7b0
[ 859.932681][ T28] ? print_irqtrace_events+0x220/0x220
[ 859.938147][ T28] ? _raw_spin_lock_irq+0xdb/0x110
[ 859.943494][ T28] do_group_exit+0x1fd/0x2b0
[ 859.948112][ T28] ? _raw_spin_unlock_irq+0x1f/0x40
[ 859.953496][ T28] ? lockdep_hardirqs_on+0x95/0x140
[ 859.958738][ T28] get_signal+0x1755/0x1820
[ 859.963489][ T28] ? ptrace_notify+0x340/0x340
[ 859.968263][ T28] ? do_sys_openat2+0x428/0x500
[ 859.973282][ T28] arch_do_signal_or_restart+0x8d/0x5f0
[ 859.978866][ T28] ? get_sigframe_size+0x10/0x10
[ 859.984103][ T28] ? __ia32_sys_open+0x270/0x270
[ 859.989078][ T28] ? exit_to_user_mode_loop+0x42/0x160
[ 859.994678][ T28] exit_to_user_mode_loop+0x74/0x160
[ 860.000076][ T28] exit_to_user_mode_prepare+0xad/0x110
[ 860.005795][ T28] syscall_exit_to_user_mode+0x2e/0x60
[ 860.011327][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.017416][ T28] RIP: 0033:0x7fafb5d25697
[ 860.021838][ T28] RSP: 002b:00007ffdbb152c90 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 860.030446][ T28] RAX: 0000000000000008 RBX: 000055fd0c7ce900 RCX: 00007fafb5d25697
[ 860.038564][ T28] RDX: 00000000000a0800 RSI: 000055fd0c7ddb60 RDI: 00000000ffffff9c
[ 860.046680][ T28] RBP: 000055fd0c7ddb60 R08: 0000000000000001 R09: 0000000000000010
[ 860.054794][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
[ 860.062908][ T28] R13: 000055fd0c7d0b80 R14: 0000000000000001 R15: 000055fd0c7c7910
[ 860.070899][ T28]
[ 860.074148][ T28] INFO: task syz-executor299:5104 blocked for more than 143 seconds.
[ 860.082215][ T28] Not tainted 6.2.0-rc2-syzkaller-00010-g69b41ac87e4a #0
[ 860.089926][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 860.098769][ T28] task:syz-executor299 state:D stack:26936 pid:5104 ppid:5090 flags:0x00004004
[ 860.108288][ T28] Call Trace:
[ 860.111578][ T28]
[ 860.114616][ T28] __schedule+0x9d1/0xe40
[ 860.118972][ T28] ? release_firmware_map_entry+0x180/0x180
[ 860.124947][ T28] ? __lock_acquire+0x1f60/0x1f60
[ 860.129980][ T28] ? __mutex_trylock_common+0x8e/0x2f0
[ 860.135590][ T28] ? do_raw_spin_unlock+0x134/0x8a0
[ 860.140807][ T28] schedule+0xcb/0x190
[ 860.144956][ T28] schedule_preempt_disabled+0xf/0x20
[ 860.150332][ T28] __mutex_lock_common+0xecf/0x26c0
[ 860.155590][ T28] ? blkdev_get_by_dev+0xfe/0xa60
[ 860.160621][ T28] ? mutex_lock_io_nested+0x60/0x60
[ 860.165901][ T28] ? kobject_get_unless_zero+0x220/0x310
[ 860.171581][ T28] ? _atomic_dec_and_lock+0x85/0x110
[ 860.176915][ T28] ? iput+0x198/0x760
[ 860.180970][ T28] ? ilookup+0x1c1/0x200
[ 860.185299][ T28] mutex_lock_nested+0x17/0x20
[ 860.190074][ T28] blkdev_get_by_dev+0xfe/0xa60
[ 860.194981][ T28] blkdev_open+0x128/0x2e0
[ 860.199405][ T28] ? blkdev_write_iter+0x750/0x750
[ 860.204597][ T28] do_dentry_open+0x85f/0x11b0
[ 860.209378][ T28] path_openat+0x25cc/0x2de0
[ 860.214252][ T28] ? stack_trace_snprint+0xf0/0xf0
[ 860.219384][ T28] ? mark_lock+0x9a/0x350
[ 860.224013][ T28] ? mark_lock+0x9a/0x350
[ 860.228368][ T28] ? do_filp_open+0x500/0x500
[ 860.233099][ T28] ? alloc_fd+0x5a7/0x640
[ 860.237442][ T28] ? rcu_read_lock_sched_held+0x89/0x130
[ 860.243149][ T28] ? __bpf_trace_rcu_stall_warning+0x10/0x10
[ 860.249182][ T28] do_filp_open+0x275/0x500
[ 860.253759][ T28] ? vfs_tmpfile+0x490/0x490
[ 860.258374][ T28] ? _raw_spin_unlock+0x24/0x40
[ 860.263295][ T28] ? alloc_fd+0x5a7/0x640
[ 860.267637][ T28] do_sys_openat2+0x13b/0x500
[ 860.272304][ T28] ? do_user_addr_fault+0x96a/0xcb0
[ 860.277639][ T28] ? do_sys_open+0x220/0x220
[ 860.282244][ T28] __x64_sys_openat+0x243/0x290
[ 860.287178][ T28] ? __ia32_sys_open+0x270/0x270
[ 860.292125][ T28] ? syscall_enter_from_user_mode+0x2e/0x1d0
[ 860.298190][ T28] ? syscall_enter_from_user_mode+0x2e/0x1d0
[ 860.304245][ T28] do_syscall_64+0x2b/0x70
[ 860.308654][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 860.314630][ T28] RIP: 0033:0x7f5dd3bc4c34
[ 860.319081][ T28] RSP: 002b:00007f5dd3bb4e70 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[ 860.327579][ T28] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5dd3bc4c34
[ 860.335755][ T28] RDX: 00000000000a0000 RSI: 00007f5dd3bb4ef0 RDI: 00000000ffffff9c
[ 860.343793][ T28] RBP: 00007f5dd3bb4ef0 R08: 0000000000000000 R09: 00007f5dd3bb5700
[ 860.351777][ T28] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000a0000
[ 860.359799][ T28] R13: 00007f5dd3c591a4 R14: 64626e2f7665642f R15: 0000000000022000
[ 860.367852][ T28]
[ 860.370865][ T28]
[ 860.370865][ T28] Showing all locks held in the system:
[ 860.378720][ T28] 1 lock held by rcu_tasks_kthre/12:
[ 860.384057][ T28] #0: ffffffff8d5239d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00
[ 860.394546][ T28] 1 lock held by rcu_tasks_trace/13:
[ 860.399828][ T28] #0: ffffffff8d5241d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00
[ 860.410868][ T28] 1 lock held by khungtaskd/28:
[ 860.415747][ T28] #0: ffffffff8d523800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 860.425159][ T28] 2 locks held by getty/4742:
[ 860.429837][ T28] #0: ffff88814a4b7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 860.439702][ T28] #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50
[ 860.449860][ T28] 1 lock held by udevd/5094:
[ 860.454478][ T28] #0: ffff888146c734c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x730
[ 860.463946][ T28] 1 lock held by syz-executor299/5104:
[ 860.469390][ T28] #0: ffff888146c734c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfe/0xa60
[ 860.479374][ T28]
[ 860.481708][ T28] =============================================
[ 860.481708][ T28]
[ 860.490200][ T28] NMI backtrace for cpu 0
[ 860.494529][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00010-g69b41ac87e4a #0
[ 860.504323][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 860.514368][ T28] Call Trace:
[ 860.517646][ T28]
[ 860.520572][ T28] dump_stack_lvl+0x1e3/0x2d0
[ 860.525252][ T28] ? nf_tcp_handle_invalid+0x630/0x630
[ 860.530705][ T28] ? panic+0x770/0x770
[ 860.534776][ T28] ? nmi_cpu_backtrace+0x255/0x560
[ 860.539885][ T28] nmi_cpu_backtrace+0x4e3/0x560
[ 860.544818][ T28] ? vprintk_emit+0x109/0x1e0
[ 860.549550][ T28] ? nmi_trigger_cpumask_backtrace+0x3e0/0x3e0
[ 860.555698][ T28] ? _printk+0xcf/0x110
[ 860.559851][ T28] ? panic+0x770/0x770
[ 860.563918][ T28] ? __wake_up_klogd+0xcd/0x100
[ 860.568767][ T28] ? panic+0x770/0x770
[ 860.572832][ T28] ? nmi_trigger_cpumask_backtrace+0xaa/0x3e0
[ 860.578934][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 860.584998][ T28] nmi_trigger_cpumask_backtrace+0x19b/0x3e0
[ 860.590976][ T28] watchdog+0xcd5/0xd20
[ 860.595187][ T28] kthread+0x266/0x300
[ 860.599254][ T28] ? hungtask_pm_notify+0x50/0x50
[ 860.604276][ T28] ? kthread_blkcg+0xd0/0xd0
[ 860.608863][ T28] ret_from_fork+0x1f/0x30
[ 860.613305][ T28]
[ 860.616451][ T28] Sending NMI from CPU 0 to CPUs 1:
[ 860.621685][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_enter+0x43d/0x800
[ 860.622669][ T28] Kernel panic - not syncing: hung_task: blocked tasks
[ 860.622679][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00010-g69b41ac87e4a #0
[ 860.622695][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 860.622704][ T28] Call Trace:
[ 860.622710][ T28]
[ 860.622716][ T28] dump_stack_lvl+0x1e3/0x2d0
[ 860.622738][ T28] ? nf_tcp_handle_invalid+0x630/0x630
[ 860.622755][ T28] ? panic+0x770/0x770
[ 860.622781][ T28] ? vscnprintf+0x59/0x80
[ 860.622804][ T28] panic+0x316/0x770
[ 860.622822][ T28] ? schedule_preempt_disabled+0x20/0x20
[ 860.622840][ T28] ? nmi_trigger_cpumask_backtrace+0x2b0/0x3e0
[ 860.622858][ T28] ? memcpy_page_flushcache+0x100/0x100
[ 860.622883][ T28] ? nmi_trigger_cpumask_backtrace+0x2b0/0x3e0
[ 860.622899][ T28] ? nmi_trigger_cpumask_backtrace+0x32a/0x3e0
[ 860.622919][ T28] ? nmi_trigger_cpumask_backtrace+0x32f/0x3e0
[ 860.622939][ T28] watchdog+0xd15/0xd20
[ 860.622970][ T28] kthread+0x266/0x300
[ 860.622986][ T28] ? hungtask_pm_notify+0x50/0x50
[ 860.623005][ T28] ? kthread_blkcg+0xd0/0xd0
[ 860.623022][ T28] ret_from_fork+0x1f/0x30
[ 860.623056][ T28]
[ 860.631032][ T28] Kernel Offset: disabled
[ 860.751172][ T28] Rebooting in 86400 seconds..