netdevsim netdevsim0 netdevsim0: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim1: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim2: unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim0 netdevsim3: unset [1, 0] type 2 family 0 port 6081 - 0
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 3075 at fs/btrfs/block-group.c:2796 btrfs_create_pending_block_groups+0x1150/0x1780 fs/btrfs/block-group.c:2796
Modules linked in:
CPU: 0 UID: 0 PID: 3075 Comm: kworker/u4:10 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:btrfs_create_pending_block_groups+0x1150/0x1780 fs/btrfs/block-group.c:2796
Code: 00 e8 64 c3 b8 fd 84 c0 74 29 e8 ab 20 d2 fd e9 fd 01 00 00 e8 a1 20 d2 fd 90 48 c7 c7 60 0e f0 8b 44 89 f6 e8 81 ac 95 fd 90 <0f> 0b 90 90 e9 e5 fd ff ff e8 f2 d0 8e 07 41 89 c7 31 ff 89 c6 e8
RSP: 0018:ffffc9000d9af580 EFLAGS: 00010246
RAX: b84f727438039d00 RBX: ffff888052ec0001 RCX: ffff88803f01a440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc9000d9af800 R08: ffff88801fc24253 R09: 1ffff11003f8484a
R10: dffffc0000000000 R11: ffffed1003f8484b R12: 0000000000000000
R13: dffffc0000000000 R14: 00000000ffffffe4 R15: ffff888012145800
FS:  0000000000000000(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6f99a3fb8 CR3: 00000000429b6000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x140/0x640 fs/btrfs/transaction.c:1071
 flush_space+0x315/0xcd0 fs/btrfs/space-info.c:865
 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:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x439/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>