assertion failed: root->reloc_root == reloc_root, in fs/btrfs/relocation.c:1919
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kernel BUG at fs/btrfs/relocation.c:1919!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19870 Comm: syz-executor.3 Not tainted 6.5.0-rc1-syzkaller-00248-gb6e6cc1f78c7 #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 83 6f 00 fe b9 7f 07 00 00 48 c7 c2 00 d6 b6 8a 48 c7 c6 e0 e2 b6 8a 48 c7 c7 60 d7 b6 8a e8 e4 d1 e3 fd <0f> 0b 4c 8b 7c 24 38 48 8b 5c 24 10 44 8b 6c 24 0c e8 4e 6f 00 fe
RSP: 0018:ffffc900295bf6e8 EFLAGS: 00010282
RAX: 000000000000004f RBX: ffff88806203a560 RCX: ffffc9000fda5000
RDX: 0000000000000000 RSI: ffffffff81697ea0 RDI: 0000000000000005
RBP: ffff88806203a558 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 6f69747265737361 R12: dffffc0000000000
R13: ffff88806203a000 R14: ffff88801e82c000 R15: ffff88802428c618
FS:  00007f6af42956c0(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e63a000 CR3: 000000006525b000 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+0x214f/0x4050 fs/btrfs/volumes.c:4402
 btrfs_ioctl_balance fs/btrfs/ioctl.c:3604 [inline]
 btrfs_ioctl+0x1362/0x5cf0 fs/btrfs/ioctl.c:4637
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl fs/ioctl.c:856 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6af347cb29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6af42950c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6af359bf80 RCX: 00007f6af347cb29
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007f6af34c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6af359bf80 R15: 00007ffd4a112038
 </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 83 6f 00 fe b9 7f 07 00 00 48 c7 c2 00 d6 b6 8a 48 c7 c6 e0 e2 b6 8a 48 c7 c7 60 d7 b6 8a e8 e4 d1 e3 fd <0f> 0b 4c 8b 7c 24 38 48 8b 5c 24 10 44 8b 6c 24 0c e8 4e 6f 00 fe
RSP: 0018:ffffc900295bf6e8 EFLAGS: 00010282
RAX: 000000000000004f RBX: ffff88806203a560 RCX: ffffc9000fda5000
RDX: 0000000000000000 RSI: ffffffff81697ea0 RDI: 0000000000000005
RBP: ffff88806203a558 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 6f69747265737361 R12: dffffc0000000000
R13: ffff88806203a000 R14: ffff88801e82c000 R15: ffff88802428c618
FS:  00007f6af42956c0(0000) GS:ffff88806b700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e63a000 CR3: 000000006525b000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400