------------[ cut here ]------------
WARNING: CPU: 3 PID: 16 at fs/btrfs/block-group.c:3535 do_chunk_alloc fs/btrfs/block-group.c:3535 [inline]
WARNING: CPU: 3 PID: 16 at fs/btrfs/block-group.c:3535 btrfs_chunk_alloc.cold+0x1a7/0x329 fs/btrfs/block-group.c:3777
Modules linked in:
CPU: 3 PID: 16 Comm: kworker/u17:1 Not tainted 6.1.0-rc8-syzkaller-00018-g479174d402bc #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
Workqueue: events_unbound btrfs_async_reclaim_data_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3535 [inline]
RIP: 0010:btrfs_chunk_alloc.cold+0x1a7/0x329 fs/btrfs/block-group.c:3777
Code: 89 c7 89 c6 88 44 24 4f e8 7b a8 cb f7 45 84 ff 0f 84 6e 01 00 00 e8 fd ab cb f7 44 89 f6 48 c7 c7 80 ae 96 8a e8 7d a3 f2 ff <0f> 0b e9 10 ff ff ff e8 e2 ab cb f7 48 8b 54 24 38 b8 ff ff 37 00
RSP: 0000:ffffc9000041fae0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 00000000ffffffe4 RCX: 0000000000000000
RDX: ffff8880128357c0 RSI: ffffffff8165785c RDI: fffff52000083f4e
RBP: ffff888024272800 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88801c418898
R13: ffff888022e05000 R14: ffffffffffffffe4 R15: 000000001c418801
FS:  0000000000000000(0000) GS:ffff88802c900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000431540 CR3: 0000000071ffd000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 flush_space+0x9ce/0xe90 fs/btrfs/space-info.c:769
 btrfs_async_reclaim_data_space+0x1c6/0x6a0 fs/btrfs/space-info.c:1299
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x669/0x1090 kernel/workqueue.c:2436
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>