BTRFS error (device loop0): failed to run delayed ref for logical 8540160 num_bytes 4096 type 178 action 1 ref_mod 1: -28
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btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/extent-tree.c:2248 at btrfs_run_delayed_refs+0x292/0x2a0 fs/btrfs/extent-tree.c:2248, CPU#0: kworker/u4:1/13
Modules linked in:
CPU: 0 UID: 0 PID: 13 Comm: kworker/u4:1 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_unbound btrfs_async_reclaim_data_space
RIP: 0010:btrfs_run_delayed_refs+0x292/0x2a0 fs/btrfs/extent-tree.c:2248
Code: c1 38 c1 0f 8c ea fd ff ff 4c 89 ef e8 77 ff 45 fe e9 dd fd ff ff e8 2d 3f d7 fd eb 10 e8 26 3f d7 fd eb 09 e8 1f 3f d7 fd 90 <0f> 0b 90 44 89 e9 f7 d9 e9 71 ff ff ff 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000026f640 EFLAGS: 00010293
RAX: ffffffff83eef5a1 RBX: ffff888057540468 RCX: ffff88801b3b8000
RDX: 0000000000000000 RSI: ffffffff8ef78650 RDI: 00000000ffffffe4
RBP: 0000000000000001 R08: ffff88801b3b8000 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff88801233e000
R13: 00000000ffffffe4 R14: 00000000ffffffe4 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88808c84f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0823057d50 CR3: 0000000043fbf000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 btrfs_commit_transaction+0x28a/0x30b0 fs/btrfs/transaction.c:2262
 flush_space+0x28a/0xde0 fs/btrfs/space-info.c:-1
 do_async_reclaim_data_space+0x29e/0x550 fs/btrfs/space-info.c:1471
 btrfs_async_reclaim_data_space+0x41/0x90 fs/btrfs/space-info.c:1519
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 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>