BTRFS info (device loop4): relocating block group 5242880 flags data|metadata
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: 0 PID: 16135 Comm: syz-executor.4 Not tainted 6.4.0-syzkaller-01312-gb19edac5992d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:prepare_to_merge+0xbb2/0xc40 fs/btrfs/relocation.c:1919
Code: fe e9 f5 f7 ff ff e8 7d d3 ec fd 48 c7 c7 60 45 2b 8b 48 c7 c6 00 55 2b 8b 48 c7 c2 e0 45 2b 8b b9 7f 07 00 00 e8 9e 07 10 07 <0f> 0b e8 77 48 12 07 f3 0f 1e fa e8 4e d3 ec fd 43 80 3c 2f 00 74
RSP: 0018:ffffc90014d4f760 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff888076afe030 RCX: 31abab5e82fb2e00
RDX: ffffc9000af59000 RSI: 0000000000033db2 RDI: 0000000000033db3
RBP: ffffc90014d4f870 R08: ffffffff816efd9c R09: fffff520029a9ea1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076afe000
R13: ffff88803f30e000 R14: ffff88803f30e560 R15: ffff88803f30e558
FS:  00007f30af39d700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f30af37d000 CR3: 000000007c0ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 relocate_block_group+0xa5d/0xcd0 fs/btrfs/relocation.c:3749
 btrfs_relocate_block_group+0x7ab/0xd70 fs/btrfs/relocation.c:4087
 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3283
 __btrfs_balance+0x1b06/0x2690 fs/btrfs/volumes.c:4018
 btrfs_balance+0xbdb/0x1120 fs/btrfs/volumes.c:4402
 btrfs_ioctl_balance+0x496/0x7c0 fs/btrfs/ioctl.c:3604
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f30ae68c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f30af39d168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f30ae7abf80 RCX: 00007f30ae68c389
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000005
RBP: 00007f30ae6d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6038fecf R14: 00007f30af39d300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:prepare_to_merge+0xbb2/0xc40 fs/btrfs/relocation.c:1919
Code: fe e9 f5 f7 ff ff e8 7d d3 ec fd 48 c7 c7 60 45 2b 8b 48 c7 c6 00 55 2b 8b 48 c7 c2 e0 45 2b 8b b9 7f 07 00 00 e8 9e 07 10 07 <0f> 0b e8 77 48 12 07 f3 0f 1e fa e8 4e d3 ec fd 43 80 3c 2f 00 74
RSP: 0018:ffffc90014d4f760 EFLAGS: 00010246
RAX: 000000000000004f RBX: ffff888076afe030 RCX: 31abab5e82fb2e00
RDX: ffffc9000af59000 RSI: 0000000000033db2 RDI: 0000000000033db3
RBP: ffffc90014d4f870 R08: ffffffff816efd9c R09: fffff520029a9ea1
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888076afe000
R13: ffff88803f30e000 R14: ffff88803f30e560 R15: ffff88803f30e558
FS:  00007f30af39d700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbabb85998 CR3: 000000007c0ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400