------------[ cut here ]------------
btrfs_abort_should_print_stack(__error)
WARNING: fs/btrfs/extent-tree.c:3425 at __btrfs_free_extent+0x1eff/0x38a0 fs/btrfs/extent-tree.c:3425, CPU#0: kworker/u8:11/1448
Modules linked in:
CPU: 0 UID: 0 PID: 1448 Comm: kworker/u8:11 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
RIP: 0010:__btrfs_free_extent+0x1eff/0x38a0 fs/btrfs/extent-tree.c:3425
Code: fb b0 fd 45 85 f6 0f 85 d6 05 00 00 e8 3a f6 b0 fd e9 3d 09 00 00 e8 30 f6 b0 fd eb 10 e8 29 f6 b0 fd eb 09 e8 22 f6 b0 fd 90 <0f> 0b 90 4c 8b 7c 24 08 44 89 f1 f7 d9 e9 57 e8 ff ff e8 aa b5 5b
RSP: 0018:ffffc900073af260 EFLAGS: 00010293
RAX: ffffffff8416e64e RBX: ffff88803cfc4001 RCX: ffff88802b1f5dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900073af410 R08: ffff88802b1f5dc0 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: dffffc0000000000
R13: ffff8880449d12e8 R14: 00000000ffffffe4 R15: 00000000ffffffe4
FS:  0000000000000000(0000) GS:ffff888124725000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a33e964278 CR3: 0000000036de4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1824 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1851 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2058 [inline]
 __btrfs_run_delayed_refs+0x1669/0x43a0 fs/btrfs/extent-tree.c:2134
 btrfs_run_delayed_refs+0xdc/0x2a0 fs/btrfs/extent-tree.c:2246
 flush_space+0x56d/0xde0 fs/btrfs/space-info.c:-1
 do_async_reclaim_metadata_space+0x3fd/0x950 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:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/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>