BTRFS info (device loop2): balance: start -susage=30064771076,limit=2,limit=2..0
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/block-group.c:2790 at btrfs_create_pending_block_groups+0x1270/0x1870 fs/btrfs/block-group.c:2790, CPU#0: syz.2.29/6160
Modules linked in:
CPU: 0 UID: 0 PID: 6160 Comm: syz.2.29 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:btrfs_create_pending_block_groups+0x1273/0x1870 fs/btrfs/block-group.c:2790
Code: 15 c7 fd e9 f8 01 00 00 e8 aa 37 ac fd 84 c0 74 23 e8 f1 14 c7 fd e9 e5 01 00 00 e8 e7 14 c7 fd 48 8d 3d c0 d7 54 0b 44 89 f6 <67> 48 0f b9 3a e9 d3 fd ff ff e8 fe 44 11 07 41 89 c7 31 ff 89 c6
RSP: 0018:ffffc9000ccd7700 EFLAGS: 00010293
RAX: ffffffff83fc1f89 RBX: ffff88805c1dc001 RCX: ffff888031a18000
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff8f50f750
RBP: ffffc9000ccd7970 R08: ffff888031a18000 R09: 0000000000000003
R10: 0000000000000100 R11: 00000000fffffffb R12: 0000000000000000
R13: fffff5200199aefc R14: 00000000ffffffe4 R15: ffff88803826a000
FS:  00007fa6dd6c56c0(0000) GS:ffff8881265c9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f31dff8 CR3: 000000003c068000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x140/0x640 fs/btrfs/transaction.c:1079
 btrfs_inc_block_group_ro+0x63e/0x6f0 fs/btrfs/block-group.c:3086
 btrfs_relocate_block_group+0x29d/0xba0 fs/btrfs/relocation.c:3923
 btrfs_relocate_chunk+0x12f/0x5d0 fs/btrfs/volumes.c:3426
 __btrfs_balance+0x1930/0x2530 fs/btrfs/volumes.c:4199
 btrfs_balance+0xac2/0x11b0 fs/btrfs/volumes.c:4573
 btrfs_ioctl_balance+0x3d6/0x610 fs/btrfs/ioctl.c:3525
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xff/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6df48aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa6dd6c5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa6df706090 RCX: 00007fa6df48aeb9
RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003
RBP: 00007fa6df4f8c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa6df706128 R14: 00007fa6df706090 R15: 00007ffd127d6898
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	fd                   	std
   1:	e9 f8 01 00 00       	jmp    0x1fe
   6:	e8 aa 37 ac fd       	call   0xfdac37b5
   b:	84 c0                	test   %al,%al
   d:	74 23                	je     0x32
   f:	e8 f1 14 c7 fd       	call   0xfdc71505
  14:	e9 e5 01 00 00       	jmp    0x1fe
  19:	e8 e7 14 c7 fd       	call   0xfdc71505
  1e:	48 8d 3d c0 d7 54 0b 	lea    0xb54d7c0(%rip),%rdi        # 0xb54d7e5
  25:	44 89 f6             	mov    %r14d,%esi
* 28:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2d:	e9 d3 fd ff ff       	jmp    0xfffffe05
  32:	e8 fe 44 11 07       	call   0x7114535
  37:	41 89 c7             	mov    %eax,%r15d
  3a:	31 ff                	xor    %edi,%edi
  3c:	89 c6                	mov    %eax,%esi