Warning: Permanently added '10.128.1.117' (ED25519) to the list of known hosts.
executing program
[ 318.170963][ T3510] block nbd0: shutting down sockets
[ 573.088784][ T27] INFO: task syz-executor154:3510 blocked for more than 143 seconds.
[ 573.096946][ T27] Not tainted 5.15.127-syzkaller #0
[ 573.102798][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 573.111563][ T27] task:syz-executor154 state:D stack:26176 pid: 3510 ppid: 3509 flags:0x00004006
[ 573.120801][ T27] Call Trace:
[ 573.124079][ T27]
[ 573.127005][ T27] __schedule+0x12c4/0x4590
[ 573.131677][ T27] ? __sched_text_start+0x8/0x8
[ 573.136533][ T27] schedule+0x11b/0x1f0
[ 573.140715][ T27] schedule_timeout+0xac/0x300
[ 573.145476][ T27] ? console_conditional_schedule+0x40/0x40
[ 573.151396][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 573.157474][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 573.162706][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 573.167904][ T27] ? lockdep_hardirqs_on+0x94/0x130
[ 573.173269][ T27] do_wait_for_common+0x2d9/0x480
[ 573.178328][ T27] ? console_conditional_schedule+0x40/0x40
[ 573.184258][ T27] ? wait_for_completion_killable_timeout+0x60/0x60
[ 573.190875][ T27] ? _raw_spin_lock_irq+0xdb/0x110
[ 573.195996][ T27] ? flush_workqueue_prep_pwqs+0x455/0x4b0
[ 573.201901][ T27] wait_for_completion+0x48/0x60
[ 573.206845][ T27] flush_workqueue+0x737/0x1610
[ 573.211736][ T27] ? rcu_work_rcufn+0x140/0x140
[ 573.216602][ T27] nbd_ioctl+0xab8/0xe10
[ 573.220946][ T27] ? nbd_release+0x120/0x120
[ 573.225539][ T27] ? init_wait_entry+0xd0/0xd0
[ 573.230377][ T27] ? nbd_release+0x120/0x120
[ 573.234970][ T27] blkdev_ioctl+0x333/0x6b0
[ 573.239725][ T27] ? blkdev_compat_ptr_ioctl+0xd0/0xd0
[ 573.245205][ T27] ? print_irqtrace_events+0x210/0x210
[ 573.250711][ T27] ? vtime_user_exit+0x2d1/0x400
[ 573.255719][ T27] block_ioctl+0xb1/0xf0
[ 573.260028][ T27] ? blkdev_iopoll+0x100/0x100
[ 573.264792][ T27] __se_sys_ioctl+0xf1/0x160
[ 573.269539][ T27] do_syscall_64+0x3d/0xb0
[ 573.273977][ T27] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 573.279934][ T27] RIP: 0033:0x7f1ad5bee879
[ 573.284361][ T27] RSP: 002b:00007ffe74809278 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 573.292814][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ad5bee879
[ 573.300821][ T27] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[ 573.308827][ T27] RBP: 00007f1ad5c615f0 R08: 0000000000000006 R09: 0000000000000006
[ 573.316797][ T27] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001
[ 573.324794][ T27] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001
[ 573.332803][ T27]
[ 573.335834][ T27]
[ 573.335834][ T27] Showing all locks held in the system:
[ 573.343583][ T27] 1 lock held by khungtaskd/27:
[ 573.348431][ T27] #0: ffffffff8c91f0a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 573.357785][ T27] 2 locks held by kworker/u5:0/146:
[ 573.363003][ T27] #0: ffff88801b5a2938 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0
[ 573.373787][ T27] #1: ffffc900010bfd20 ((work_completion)(&args->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0
[ 573.385007][ T27] 2 locks held by getty/3248:
[ 573.389717][ T27] #0: ffff88802450e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 573.399585][ T27] #1: ffffc900020162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 573.409700][ T27]
[ 573.412016][ T27] =============================================
[ 573.412016][ T27]
[ 573.420450][ T27] NMI backtrace for cpu 0
[ 573.424773][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.127-syzkaller #0
[ 573.432743][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
[ 573.442790][ T27] Call Trace:
[ 573.446064][ T27]
[ 573.448983][ T27] dump_stack_lvl+0x1e3/0x2cb
[ 573.453829][ T27] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 573.459457][ T27] ? panic+0x84d/0x84d
[ 573.463512][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 573.468683][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 573.473601][ T27] ? __wake_up_klogd+0xd5/0x100
[ 573.478475][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 573.484607][ T27] ? _printk+0xd1/0x111
[ 573.488742][ T27] ? panic+0x84d/0x84d
[ 573.492799][ T27] ? __wake_up_klogd+0xcc/0x100
[ 573.497641][ T27] ? panic+0x84d/0x84d
[ 573.501700][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 573.507820][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 573.513815][ T27] watchdog+0xe72/0xeb0
[ 573.518016][ T27] kthread+0x3f6/0x4f0
[ 573.522084][ T27] ? hungtask_pm_notify+0x50/0x50
[ 573.527087][ T27] ? kthread_blkcg+0xd0/0xd0
[ 573.531652][ T27] ret_from_fork+0x1f/0x30
[ 573.536063][ T27]
[ 573.539189][ T27] Sending NMI from CPU 0 to CPUs 1:
[ 573.544410][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340
[ 573.548946][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 573.561011][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.127-syzkaller #0
[ 573.568969][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
[ 573.579001][ T27] Call Trace:
[ 573.582263][ T27]
[ 573.585173][ T27] dump_stack_lvl+0x1e3/0x2cb
[ 573.589834][ T27] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 573.595444][ T27] ? panic+0x84d/0x84d
[ 573.599491][ T27] panic+0x318/0x84d
[ 573.603359][ T27] ? schedule_preempt_disabled+0x20/0x20
[ 573.608974][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 573.615105][ T27] ? fb_is_primary_device+0xcc/0xcc
[ 573.620279][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 573.626320][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 573.632448][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0
[ 573.638577][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0
[ 573.644706][ T27] watchdog+0xeb0/0xeb0
[ 573.648844][ T27] kthread+0x3f6/0x4f0
[ 573.652975][ T27] ? hungtask_pm_notify+0x50/0x50
[ 573.658062][ T27] ? kthread_blkcg+0xd0/0xd0
[ 573.662627][ T27] ret_from_fork+0x1f/0x30
[ 573.667045][ T27]
[ 573.670282][ T27] Kernel Offset: disabled
[ 573.674590][ T27] Rebooting in 86400 seconds..