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: 1 PID: 10561 Comm: syz-executor.5 Not tainted 6.5.0-rc2-syzkaller-00307-gd192f5382581 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:merge_reloc_roots+0x87d/0x950 fs/btrfs/relocation.c:2011
Code: fe e9 24 fb ff ff e8 52 72 ff fd b9 db 07 00 00 48 c7 c2 00 0a b7 8a 48 c7 c6 80 12 b7 8a 48 c7 c7 60 0b b7 8a e8 83 d5 e2 fd <0f> 0b e8 cc 5f 53 fe e9 bf f9 ff ff 48 89 ef e8 5f 60 53 fe e9 0a
RSP: 0018:ffffc900145bf6c0 EFLAGS: 00010286
RAX: 0000000000000032 RBX: ffff888038bce558 RCX: ffffc90005df1000
RDX: 0000000000000000 RSI: ffffffff816a6920 RDI: 0000000000000005
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88803a600000
R13: ffff888038bce000 R14: 0000000000000001 R15: ffff88803786a000
FS:  00007f2e1c0566c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b31008440 CR3: 0000000028b4e000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 relocate_block_group+0x8db/0xe70 fs/btrfs/relocation.c:3751
 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
 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: 0033:0x7f2e1b27cb29
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:00007f2e1c0560c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2e1b39bf80 RCX: 00007f2e1b27cb29
RDX: 00000000200003c0 RSI: 00000000c4009420 RDI: 0000000000000004
RBP: 00007f2e1b2c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2e1b39bf80 R15: 00007ffcfe379b38
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:merge_reloc_roots+0x87d/0x950 fs/btrfs/relocation.c:2011
Code: fe e9 24 fb ff ff e8 52 72 ff fd b9 db 07 00 00 48 c7 c2 00 0a b7 8a 48 c7 c6 80 12 b7 8a 48 c7 c7 60 0b b7 8a e8 83 d5 e2 fd <0f> 0b e8 cc 5f 53 fe e9 bf f9 ff ff 48 89 ef e8 5f 60 53 fe e9 0a
RSP: 0018:ffffc900145bf6c0 EFLAGS: 00010286
RAX: 0000000000000032 RBX: ffff888038bce558 RCX: ffffc90005df1000
RDX: 0000000000000000 RSI: ffffffff816a6920 RDI: 0000000000000005
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: ffff88803a600000
R13: ffff888038bce000 R14: 0000000000000001 R15: ffff88803786a000
FS:  00007f2e1c0566c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7470f78038 CR3: 0000000028b4e000 CR4: 0000000000350ee0