INFO: task syz-executor425:3625 can't die for more than 143 seconds.
task:syz-executor425 state:R  running task     stack:26840 pid: 3625 ppid:  3623 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 </TASK>
INFO: task syz-executor425:3630 can't die for more than 144 seconds.
task:syz-executor425 state:R  running task     stack:27280 pid: 3630 ppid:  3626 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 </TASK>
INFO: task syz-executor425:3631 can't die for more than 145 seconds.
task:syz-executor425 state:R  running task     stack:27312 pid: 3631 ppid:  3628 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6723
 </TASK>
INFO: task syz-executor425:3632 can't die for more than 145 seconds.
task:syz-executor425 state:R  running task     stack:27312 pid: 3632 ppid:  3624 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 </TASK>
INFO: task syz-executor425:3634 can't die for more than 146 seconds.
task:syz-executor425 state:R  running task     stack:27312 pid: 3634 ppid:  3629 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 </TASK>
INFO: task syz-executor425:3633 can't die for more than 147 seconds.
task:syz-executor425 state:R  running task     stack:27312 pid: 3633 ppid:  3627 flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5000 [inline]
 __schedule+0xab2/0x4db0 kernel/sched/core.c:6309
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6723
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/26:
 #0: ffffffff8bb83a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6463
3 locks held by kworker/u4:5/2394:
2 locks held by getty/3271:
 #0: ffff8880235c3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90002b662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2077
3 locks held by syz-executor425/3625:
1 lock held by syz-executor425/3630:
1 lock held by syz-executor425/3631:
1 lock held by syz-executor425/3632:
1 lock held by syz-executor425/3634:
1 lock held by syz-executor425/3633:

=============================================