BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0
BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0
BTRFS info (device loop0): relocating block group 1048576 flags system
------------[ cut here ]------------
WARNING: CPU: 0 PID: 11785 at fs/btrfs/relocation.c:4123 btrfs_relocate_block_group+0xcda/0xd70
Modules linked in:
CPU: 0 PID: 11785 Comm: syz-executor.0 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:btrfs_relocate_block_group+0xcda/0xd70 fs/btrfs/relocation.c:4123
Code: fe 48 c7 c7 c0 32 2b 8b 48 c7 c6 60 32 2b 8b ba b1 0f 00 00 e8 47 43 11 07 e8 a2 b5 ee fd 0f 0b e9 62 fd ff ff e8 96 b5 ee fd <0f> 0b e9 b5 fd ff ff e8 8a b5 ee fd 0f 0b e9 08 fe ff ff 44 89 e1
RSP: 0018:ffffc900036dfa28 EFLAGS: 00010283
RAX: ffffffff839cca0a RBX: 00000000003fe000 RCX: 0000000000040000
RDX: ffffc90003bc1000 RSI: 0000000000036e15 RDI: 0000000000036e16
RBP: ffff888079cd5068 R08: ffffffff839cc7b8 R09: fffff520006dbf35
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88803041e000
R13: 0000000000000000 R14: ffff888029d54000 R15: ffff888029d54010
FS:  00007f63b173e700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d236000 CR3: 00000000293d5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3276
 __btrfs_balance+0x1b06/0x2690 fs/btrfs/volumes.c:4011
 btrfs_balance+0xbdb/0x1120 fs/btrfs/volumes.c:4395
 btrfs_ioctl_balance+0x493/0x7c0 fs/btrfs/ioctl.c:3599
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xf1/0x160 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: 0033:0x7f63b0a8c149
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:00007f63b173e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f63b0babf80 RCX: 00007f63b0a8c149
RDX: 0000000020001200 RSI: 00000000c4009420 RDI: 0000000000000006
RBP: 00007f63b0ae7cd2 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1a4a6d9f R14: 00007f63b173e300 R15: 0000000000022000
 </TASK>