------------[ cut here ]------------
debug_locks && !(lock_is_held(&(__rq_lockp(rq))->dep_map) != 0)
WARNING: kernel/sched/sched.h:1666 at lockdep_assert_rq_held kernel/sched/sched.h:1666 [inline], CPU#0: kworker/0:1H/5116
WARNING: kernel/sched/sched.h:1666 at lockdep_assert_rq_held kernel/sched/sched.h:1663 [inline], CPU#0: kworker/0:1H/5116
WARNING: kernel/sched/sched.h:1666 at update_rq_clock+0x40a/0xd20 kernel/sched/core.c:875, CPU#0: kworker/0:1H/5116
Modules linked in:
CPU: 0 UID: 0 PID: 5116 Comm: kworker/0:1H Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events_highpri snd_vmidi_output_work
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1666 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1663 [inline]
RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:875
Code: ab c8 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 98 a0 fa 09 a8 04 0f 84 df fc ff ff 90 0f 0b 90 e9 d6 fc ff ff 90 <0f> 0b 90 e9 92 fc ff ff 4c 8d 83 c0 0b 00 00 48 b8 00 00 00 00 00
RSP: 0000:ffffc900039e78f0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88802b33c040 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8e3cb4bf RDI: ffffffff8c622c80
RBP: ffffc900039e7a90 R08: 0000000000000001 R09: 0000000000000001
R10: ffff88802b23cbd8 R11: 0000000000000000 R12: ffffffff914587e4
R13: ffff88802b33cf20 R14: ffff88802b33c040 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888096960000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000008000f000 CR3: 0000000056196000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 pick_next_task kernel/sched/core.c:6367 [inline]
 __schedule+0x1c69/0x6920 kernel/sched/core.c:7191
 preempt_schedule_common+0x3c/0xb0 kernel/sched/core.c:7455
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
 _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:221
 spin_unlock_irqrestore include/linux/spinlock.h:425 [inline]
 class_spinlock_irqsave_destructor include/linux/spinlock.h:642 [inline]
 snd_rawmidi_transmit+0xf1/0x130 sound/core/rawmidi.c:1489
 snd_vmidi_output_work+0x111/0x390 sound/core/seq/seq_virmidi.c:152
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>