------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 1044 at fs/btrfs/block-group.c:4007 do_chunk_alloc fs/btrfs/block-group.c:4007 [inline]
WARNING: CPU: 0 PID: 1044 at fs/btrfs/block-group.c:4007 btrfs_chunk_alloc+0xe64/0x1430 fs/btrfs/block-group.c:4248
Modules linked in:
CPU: 0 UID: 0 PID: 1044 Comm: kworker/u4:8 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events_unbound btrfs_async_reclaim_data_space
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:4007 [inline]
RIP: 0010:btrfs_chunk_alloc+0xe64/0x1430 fs/btrfs/block-group.c:4248
Code: 00 e8 60 9a b2 fd 84 c0 74 29 e8 17 60 cc fd e9 62 01 00 00 e8 0d 60 cc fd 90 48 c7 c7 40 d6 b0 8b 44 89 f6 e8 6d 6d 8f fd 90 <0f> 0b 90 90 e9 9a fc ff ff e8 2e 95 5a 07 89 c3 31 ff 89 c6 e8 23
RSP: 0018:ffffc90002607778 EFLAGS: 00010246
RAX: 124802841216df00 RBX: ffff8880523e0001 RCX: ffff888033090000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa650 R12: dffffc0000000000
R13: ffff888051a29000 R14: ffffffffffffffe4 R15: ffff888043582378
FS:  0000000000000000(0000) GS:ffff88808d300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f80399ff000 CR3: 00000000117df000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 flush_space+0x30b/0xcd0 fs/btrfs/space-info.c:861
 do_async_reclaim_data_space+0x11c/0x520 fs/btrfs/space-info.c:1394
 btrfs_async_reclaim_data_space+0x41/0x90 fs/btrfs/space-info.c:1458
 process_one_work kernel/workqueue.c:3263 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>