BTRFS info (device loop3): block group has cluster?: no BTRFS info (device loop3): 0 blocks of free space at or bigger than bytes is ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7671 at fs/btrfs/volumes.c:3265 btrfs_remove_chunk+0x14b5/0x19c0 fs/btrfs/volumes.c:3265 Modules linked in: CPU: 0 PID: 7671 Comm: syz.3.787 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:btrfs_remove_chunk+0x14b5/0x19c0 fs/btrfs/volumes.c:3265 Code: 48 c7 c7 e0 0b d0 8a 44 89 f6 e8 f6 c3 e0 fd 0f 0b e9 76 fe ff ff e8 2a 99 14 fe 48 c7 c7 e0 0b d0 8a 44 89 f6 e8 db c3 e0 fd <0f> 0b e9 95 fe ff ff e8 0f 99 14 fe 48 c7 c7 e0 0b d0 8a 44 89 f6 RSP: 0018:ffffc900034d7920 EFLAGS: 00010246 RAX: e6ecf52c794f9f00 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90010515000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc900034d7ad0 R08: dffffc0000000000 R09: fffff5200069aeb5 R10: fffff5200069aeb5 R11: 1ffff9200069aeb4 R12: 1ffff110048fd190 R13: dffffc0000000000 R14: ffffffffffffffe4 R15: ffff888028b6c001 FS: 00007f30d98796c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2a6637 CR3: 000000004e1cd000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_relocate_chunk+0x296/0x3b0 fs/btrfs/volumes.c:3395 __btrfs_balance+0x1894/0x21e0 fs/btrfs/volumes.c:4098 btrfs_balance+0xcad/0x11b0 fs/btrfs/volumes.c:4474 btrfs_ioctl_balance+0x49f/0x720 fs/btrfs/ioctl.c:4531 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f30d898ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f30d9879038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f30d8bc6180 RCX: 00007f30d898ebe9 RDX: 0000200000000200 RSI: 00000000c4009420 RDI: 0000000000000007 RBP: 00007f30d8a11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f30d8bc6218 R14: 00007f30d8bc6180 R15: 00007ffe4d358168