------------[ cut here ]------------
READ_ONCE(rsp->gp_state) == GP_PASSED
WARNING: kernel/rcu/sync.c:177 at rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177, CPU#0: kworker/0:0/9
Modules linked in:
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: events destroy_super_work
RIP: 0010:rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177
Code: 18 e8 07 ec 00 00 43 0f b6 44 25 00 84 c0 0f 85 82 00 00 00 83 3b 00 75 1f 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d5 5c 59 0a cc 90 <0f> 0b 90 e9 66 ff ff ff 90 0f 0b 90 eb 8a 90 0f 0b 90 eb db 89 d9
RSP: 0018:ffffc9000022fa48 EFLAGS: 00010246
RAX: 0000000000000002 RBX: ffff888041dd0390 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8c8e9160 RDI: ffff888041dd0390
RBP: 0000000000000001 R08: ffffffff8fdf1033 R09: 1ffffffff1fbe206
R10: dffffc0000000000 R11: fffffbfff1fbe207 R12: dffffc0000000000
R13: 1ffff110083ba072 R14: ffff888041dd0390 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88808ac1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa47061f000 CR3: 00000000418b4000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 percpu_free_rwsem+0x40/0x80 kernel/locking/percpu-rwsem.c:42
 destroy_super_work+0x23d/0x330 fs/super.c:290
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>