INFO: task syz-executor.5:11026 can't die for more than 143 seconds. task:syz-executor.5 state:R running task stack:25952 pid:11026 ppid: 8509 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4325 [inline] __schedule+0x8eb/0x21b0 kernel/sched/core.c:5076 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 INFO: task syz-executor.4:11019 can't die for more than 146 seconds. task:syz-executor.4 state:R running task stack:25768 pid:11019 ppid: 8478 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4325 [inline] __schedule+0x8eb/0x21b0 kernel/sched/core.c:5076 INFO: task syz-executor.0:11038 can't die for more than 148 seconds. task:syz-executor.0 state:R running task stack:26968 pid:11038 ppid: 8470 flags:0x00004006 Call Trace: INFO: task syz-executor.2:11044 can't die for more than 149 seconds. task:syz-executor.2 state:R running task stack:25880 pid:11044 ppid: 8474 flags:0x00004006 Call Trace: Showing all locks held in the system: 3 locks held by kworker/u4:1/22: 1 lock held by khungtaskd/1663: #0: ffffffff8b78db60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x28c kernel/locking/lockdep.c:6254 1 lock held by in:imklog/8153: #0: ffff88801454dc70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:923 2 locks held by agetty/8156: #0: ffff888021574098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:266 #1: ffffc90000f092e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x21d/0x1ac0 drivers/tty/n_tty.c:2158 2 locks held by kworker/0:5/9777: #0: ffff8880b9c34fd8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1318 [inline] #0: ffff8880b9c34fd8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x235/0x21b0 kernel/sched/core.c:4993 #1: ffff8880b9c20088 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x305/0x440 kernel/sched/psi.c:833 1 lock held by syz-executor.5/11026: 1 lock held by syz-executor.4/11019: 3 locks held by syz-executor.2/11044: =============================================