I/O error, dev loop0, sector 10568 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2
------------[ cut here ]------------
ret == -ENOENT
WARNING: fs/btrfs/extent-tree.c:3418 at __btrfs_free_extent+0x1732/0x4570 fs/btrfs/extent-tree.c:3418, CPU#0: kworker/u4:9/1105
Modules linked in:
CPU: 0 UID: 0 PID: 1105 Comm: kworker/u4:9 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_metadata_space
RIP: 0010:__btrfs_free_extent+0x1732/0x4570 fs/btrfs/extent-tree.c:3418
Code: 03 00 00 e8 50 b0 db fd 4c 8b 7c 24 10 48 8b 5c 24 18 48 8b 44 24 30 4d 89 e5 49 bc 00 00 00 00 00 fc ff df e9 4e 0d 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 28 80 3c 01 00
RSP: 0018:ffffc9000579f260 EFLAGS: 00010246
RAX: 0000000000000002 RBX: ffff888012617b40 RCX: 0000000000000005
RDX: ffffffff83ea1ebe RSI: ffffffff8ef671c0 RDI: 00000000fffffffe
RBP: ffffc9000579f410 R08: ffff888033338000 R09: 0000000000000002
R10: 00000000fffffffe R11: 0000000000000000 R12: 00000000fffffffe
R13: 00000000fffffffe R14: ffff888012521580 R15: 0000000000547000
FS:  0000000000000000(0000) GS:ffff88808c809000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005587f4c2bdf0 CR3: 000000004039f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 run_delayed_data_ref fs/btrfs/extent-tree.c:1665 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1855 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2058 [inline]
 __btrfs_run_delayed_refs+0xb83/0x4710 fs/btrfs/extent-tree.c:2133
 btrfs_run_delayed_refs+0xe6/0x3b0 fs/btrfs/extent-tree.c:2245
 flush_space+0x574/0xe20 fs/btrfs/space-info.c:-1
 do_async_reclaim_metadata_space+0x3fc/0x960 fs/btrfs/space-info.c:1211
 btrfs_async_reclaim_metadata_space+0x89/0xe0 fs/btrfs/space-info.c:1278
 process_one_work kernel/workqueue.c:3302 [inline]
 process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385
 worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466
 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>