assertion failed: 0, in fs/btrfs/relocation.c:2011
------------[ cut here ]------------
kernel BUG at fs/btrfs/relocation.c:2011!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10117 Comm: syz-executor.3 Not tainted 6.5.0-rc1-syzkaller-00006-g3f01e9fed845 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:merge_reloc_roots+0x98b/0x9a0 fs/btrfs/relocation.c:2011
Code: 6b 5f 1a 07 0f 0b e8 94 42 ec fd 48 c7 c7 60 72 4b 8b 48 c7 c6 c0 7d 4b 8b 48 c7 c2 e0 72 4b 8b b9 db 07 00 00 e8 45 5f 1a 07 <0f> 0b e8 9e 9f 1c 07 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41
RSP: 0018:ffffc900168ff760 EFLAGS: 00010246
RAX: 0000000000000032 RBX: ffff8880246d2030 RCX: 7a270603ea261400
RDX: ffffc9000e526000 RSI: 0000000000036d96 RDI: 0000000000036d97
RBP: ffffc900168ff870 R08: ffffffff816f59ec R09: 1ffff92002d1fea0
R10: dffffc0000000000 R11: fffff52002d1fea1 R12: ffff888065a9e558
R13: ffff888065a9e000 R14: ffff8880246d2000 R15: dffffc0000000000
FS:  00007f7cdd38e6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7cdd36cf28 CR3: 000000002acc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 relocate_block_group+0xa68/0xcd0 fs/btrfs/relocation.c:3751
 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: 0033:0x7f7cdc67cb29
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:00007f7cdd38e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7cdc79bf80 RCX: 00007f7cdc67cb29
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f7cdc6c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f7cdc79bf80 R15: 00007ffdbb225808
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:merge_reloc_roots+0x98b/0x9a0 fs/btrfs/relocation.c:2011
Code: 6b 5f 1a 07 0f 0b e8 94 42 ec fd 48 c7 c7 60 72 4b 8b 48 c7 c6 c0 7d 4b 8b 48 c7 c2 e0 72 4b 8b b9 db 07 00 00 e8 45 5f 1a 07 <0f> 0b e8 9e 9f 1c 07 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41
RSP: 0018:ffffc900168ff760 EFLAGS: 00010246
RAX: 0000000000000032 RBX: ffff8880246d2030 RCX: 7a270603ea261400
RDX: ffffc9000e526000 RSI: 0000000000036d96 RDI: 0000000000036d97
RBP: ffffc900168ff870 R08: ffffffff816f59ec R09: 1ffff92002d1fea0
R10: dffffc0000000000 R11: fffff52002d1fea1 R12: ffff888065a9e558
R13: ffff888065a9e000 R14: ffff8880246d2000 R15: dffffc0000000000
FS:  00007f7cdd38e6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e826000 CR3: 000000002acc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400