BTRFS info (device loop2): relocating block group 5242880 flags data|metadata
assertion failed: root->reloc_root == reloc_root, in fs/btrfs/relocation.c:1919
------------[ cut here ]------------
kernel BUG at fs/btrfs/relocation.c:1919!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 2 PID: 10324 Comm: syz-executor.2 Not tainted 6.5.0-rc2-syzkaller-00221-gf7e3a1bafdea #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:prepare_to_merge+0x9cc/0xcd0 fs/btrfs/relocation.c:1919
Code: c5 e9 81 fd ff ff e8 53 95 ff fd b9 7f 07 00 00 48 c7 c2 00 0a b7 8a 48 c7 c6 e0 16 b7 8a 48 c7 c7 60 0b b7 8a e8 84 f8 e2 fd <0f> 0b 4c 8b 7c 24 38 48 8b 5c 24 10 44 8b 6c 24 0c e8 1e 95 ff fd
RSP: 0018:ffffc9002a8276a8 EFLAGS: 00010286
RAX: 000000000000004f RBX: ffff888050ed2560 RCX: ffffc90003ef9000
RDX: 0000000000000000 RSI: ffffffff816a6920 RDI: 0000000000000005
RBP: ffff888050ed2558 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 6f69747265737361 R12: dffffc0000000000
R13: ffff888050ed2000 R14: ffff88804f7e4000 R15: ffff88801f7e5618
FS:  0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000f7f28b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000000005691f04c CR3: 00000000514e8000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 relocate_block_group+0x8d1/0xe70 fs/btrfs/relocation.c:3749
 btrfs_relocate_block_group+0x714/0xd90 fs/btrfs/relocation.c:4087
 btrfs_relocate_chunk+0x143/0x440 fs/btrfs/volumes.c:3283
 __btrfs_balance fs/btrfs/volumes.c:4018 [inline]
 btrfs_balance+0x20fc/0x3ef0 fs/btrfs/volumes.c:4395
 btrfs_ioctl_balance fs/btrfs/ioctl.c:3604 [inline]
 btrfs_ioctl+0x1362/0x5cf0 fs/btrfs/ioctl.c:4637
 __do_compat_sys_ioctl+0x2bf/0x330 fs/ioctl.c:968
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
 entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f2d579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f285ac EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000c4009420
RDX: 00000000200003c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:prepare_to_merge+0x9cc/0xcd0 fs/btrfs/relocation.c:1919
Code: c5 e9 81 fd ff ff e8 53 95 ff fd b9 7f 07 00 00 48 c7 c2 00 0a b7 8a 48 c7 c6 e0 16 b7 8a 48 c7 c7 60 0b b7 8a e8 84 f8 e2 fd <0f> 0b 4c 8b 7c 24 38 48 8b 5c 24 10 44 8b 6c 24 0c e8 1e 95 ff fd
RSP: 0018:ffffc9002a8276a8 EFLAGS: 00010286
RAX: 000000000000004f RBX: ffff888050ed2560 RCX: ffffc90003ef9000
RDX: 0000000000000000 RSI: ffffffff816a6920 RDI: 0000000000000005
RBP: ffff888050ed2558 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 6f69747265737361 R12: dffffc0000000000
R13: ffff888050ed2000 R14: ffff88804f7e4000 R15: ffff88801f7e5618
FS:  0000000000000000(0000) GS:ffff88802c600000(0063) knlGS:00000000f7f28b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007f7000b82440 CR3: 00000000514e8000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	10 06                	adc    %al,(%rsi)
   2:	03 74 b4 01          	add    0x1(%rsp,%rsi,4),%esi
   6:	10 07                	adc    %al,(%rdi)
   8:	03 74 b0 01          	add    0x1(%rax,%rsi,4),%esi
   c:	10 08                	adc    %cl,(%rax)
   e:	03 74 d8 01          	add    0x1(%rax,%rbx,8),%esi
  1e:	00 51 52             	add    %dl,0x52(%rcx)
  21:	55                   	push   %rbp
  22:	89 e5                	mov    %esp,%ebp
  24:	0f 34                	sysenter
  26:	cd 80                	int    $0x80
* 28:	5d                   	pop    %rbp <-- trapping instruction
  29:	5a                   	pop    %rdx
  2a:	59                   	pop    %rcx
  2b:	c3                   	ret
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	90                   	nop
  2f:	90                   	nop
  30:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi
  37:	8d b4 26 00 00 00 00 	lea    0x0(%rsi,%riz,1),%esi