BTRFS critical (device loop0): entry offset 8523776, bytes 8253440, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 1 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): 12447744 bytes available across all block groups ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 6519 at fs/btrfs/volumes.c:3365 btrfs_remove_chunk+0x1a22/0x20e0 fs/btrfs/volumes.c:3365 Modules linked in: CPU: 1 UID: 0 PID: 6519 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:btrfs_remove_chunk+0x1a22/0x20e0 fs/btrfs/volumes.c:3365 Code: 54 c4 d2 fd 84 c0 0f 84 62 01 00 00 e8 a7 12 ec fd e9 ba 03 00 00 e8 9d 12 ec fd 48 c7 c7 20 7d 8e 8b 44 89 ee e8 fe 98 af fd <0f> 0b e9 16 f8 ff ff e8 82 12 ec fd eb 05 e8 7b 12 ec fd e8 46 7c RSP: 0018:ffffc90003c178e0 EFLAGS: 00010246 RAX: 88a39a425d811500 RBX: 0000000000000000 RCX: ffff88802b03bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: ffffc90003c17ad0 R08: ffff8880b8924253 R09: 1ffff1101712484a R10: dffffc0000000000 R11: ffffed101712484b R12: dffffc0000000000 R13: ffffffffffffffe4 R14: ffff88805dae8001 R15: ffff88807243db90 FS: 00007f866b0ce6c0(0000) GS:ffff888126511000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f89c4330210 CR3: 0000000075a18000 CR4: 00000000003526f0 Call Trace: btrfs_relocate_chunk+0x29b/0x5c0 fs/btrfs/volumes.c:3496 __btrfs_balance+0x1860/0x23e0 fs/btrfs/volumes.c:4227 btrfs_balance+0xac2/0x11b0 fs/btrfs/volumes.c:4604 btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3577 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8a/0x300 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f866a18eba9 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:00007f866b0ce038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f866a3d5fa0 RCX: 00007f866a18eba9 RDX: 0000200000000200 RSI: 00000000c4009420 RDI: 0000000000000004 RBP: 00007f866a211e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f866a3d6038 R14: 00007f866a3d5fa0 R15: 00007fff9dc42118