BTRFS info (device loop5): relocating block group 6881280 flags data|metadata
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/volumes.c:3470 at btrfs_remove_chunk+0xe0d/0x15f0 fs/btrfs/volumes.c:3470, CPU#1: syz.5.1926/12663
Modules linked in:
CPU: 1 UID: 0 PID: 12663 Comm: syz.5.1926 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:btrfs_remove_chunk+0xe10/0x15f0 fs/btrfs/volumes.c:3470
Code: 1d ce fd e9 ee 00 00 00 e8 9d 31 b3 fd 84 c0 74 23 e8 04 1d ce fd e9 db 00 00 00 e8 fa 1c ce fd 48 8d 3d 13 87 23 0c 44 89 ee <67> 48 0f b9 3a e9 02 01 00 00 e8 51 52 b8 07 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc90003a27940 EFLAGS: 00010287
RAX: ffffffff83f79596 RBX: ffff888053348001 RCX: 0000000000080000
RDX: ffffc9001b833000 RSI: 00000000ffffffe4 RDI: ffffffff901b1cb0
RBP: ffffc90003a27a90 R08: ffff88802c0a3c80 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000002 R12: ffff888056cac6f0
R13: ffffffffffffffe4 R14: dffffc0000000000 R15: 0000000000000000
FS:  00007f722cff66c0(0000) GS:ffff888125555000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e949456b8 CR3: 0000000029582000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 btrfs_relocate_chunk_finish fs/btrfs/volumes.c:3557 [inline]
 btrfs_relocate_chunk+0x3e7/0x810 fs/btrfs/volumes.c:3611
 __btrfs_balance+0x1dac/0x2af0 fs/btrfs/volumes.c:4492
 btrfs_balance+0xafa/0x11f0 fs/btrfs/volumes.c:4879
 btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3446
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f722ed9c629
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:00007f722cff6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f722f015fa0 RCX: 00007f722ed9c629
RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007f722ee32b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f722f016038 R14: 00007f722f015fa0 R15: 00007ffde4884ed8
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	fd                   	std
   1:	e9 ee 00 00 00       	jmp    0xf4
   6:	e8 9d 31 b3 fd       	call   0xfdb331a8
   b:	84 c0                	test   %al,%al
   d:	74 23                	je     0x32
   f:	e8 04 1d ce fd       	call   0xfdce1d18
  14:	e9 db 00 00 00       	jmp    0xf4
  19:	e8 fa 1c ce fd       	call   0xfdce1d18
  1e:	48 8d 3d 13 87 23 0c 	lea    0xc238713(%rip),%rdi        # 0xc238738
  25:	44 89 ee             	mov    %r13d,%esi
* 28:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2d:	e9 02 01 00 00       	jmp    0x134
  32:	e8 51 52 b8 07       	call   0x7b85288
  37:	89 c3                	mov    %eax,%ebx
  39:	31 ff                	xor    %edi,%edi
  3b:	89 c6                	mov    %eax,%esi
  3d:	e8                   	.byte 0xe8