BTRFS info (device loop3): relocating block group 6881280 flags data|metadata ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4702 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259 Modules linked in: CPU: 1 PID: 4702 Comm: syz.3.136 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259 lr : btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259 sp : ffff80001f957720 x29: ffff80001f957880 x28: ffff0000cf116e70 x27: ffff80001f9577c0 x26: dfff800000000000 x25: ffffffffffffffe4 x24: 1fffe00019e22dd7 x23: ffff0000cf116ebc x22: ffff0000ca2bb158 x21: 0000000000690000 x20: 00000000ffffffe4 x19: ffff0000cf116ec8 x18: 0000000000000001 x17: 0000000000000002 x16: ffff8000111bc798 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000 x11: 000000000007ffff x10: ffff800025709000 x9 : 610a7589f5ab9a00 x8 : 610a7589f5ab9a00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f957018 x4 : ffff80001424f400 x3 : ffff80000850433c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259 btrfs_relocate_chunk+0x1d0/0x280 fs/btrfs/volumes.c:3376 __btrfs_balance+0x1170/0x1ba4 fs/btrfs/volumes.c:4079 btrfs_balance+0xac4/0x1138 fs/btrfs/volumes.c:4469 btrfs_ioctl_balance+0x4cc/0x658 fs/btrfs/ioctl.c:4152 btrfs_ioctl+0x8d0/0xb38 fs/btrfs/ioctl.c:5012 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 85896 hardirqs last enabled at (85895): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (85896): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (85584): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (85582): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace c44365d071602f1a ]--- BTRFS: error (device loop3) in btrfs_remove_chunk:3259: errno=-28 No space left BTRFS info (device loop3): forced readonly BTRFS info (device loop3): 1 enospc errors during balance BTRFS info (device loop3): balance: ended with status: -30