BTRFS error (device loop8): failed to run delayed ref for logical 8519680 num_bytes 4096 type 178 action 1 ref_mod 1: -28
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/extent-tree.c:2247 at btrfs_run_delayed_refs+0x30b/0x3b0, CPU#1: kworker/u10:1/36
Modules linked in:
CPU: 1 UID: 0 PID: 36 Comm: kworker/u10:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound btrfs_async_reclaim_data_space
RIP: 0010:btrfs_run_delayed_refs+0x30e/0x3b0
Code: 85 e4 75 07 e8 e3 c6 e1 fd eb 7a e8 6c d9 c6 fd 84 c0 74 20 e8 d3 c6 e1 fd eb 6a e8 cc c6 e1 fd 48 8d 3d 75 f0 36 0c 44 89 fe <67> 48 0f b9 3a e9 0b ff ff ff e8 c3 4f cb 07 41 89 c4 31 ff 89 c6
RSP: 0018:ffffc90000ac7598 EFLAGS: 00010293
RAX: ffffffff83e3e824 RBX: ffff8881a9d414a0 RCX: ffff8881616e0000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff901ad8a0
RBP: 0000000000000000 R08: ffff8881616e0000 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff8881b93e8001
R13: ffff8881bb8b1000 R14: dffffc0000000000 R15: 00000000ffffffe4
FS:  0000000000000000(0000) GS:ffff8882a9457000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055559214ea28 CR3: 000000011e750000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x29a/0x31a0
 flush_space+0x4da/0xd80
 do_async_reclaim_data_space+0x29a/0x520
 btrfs_async_reclaim_data_space+0x41/0x90
 process_scheduled_works+0xb6e/0x18c0
 worker_thread+0xa53/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
