BTRFS critical (device loop3): entry offset 1052672, bytes 4190208, bitmap no BTRFS info (device loop3): block group has cluster?: no BTRFS info (device loop3): 1 blocks of free space at or bigger than bytes is ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4160 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1130/0x16b4 fs/btrfs/volumes.c:3259 Modules linked in: CPU: 1 PID: 4160 Comm: syz.3.4 Not tainted 5.15.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 62400005 (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 : ffff80001fc37720 x29: ffff80001fc37880 x28: ffff0000de822630 x27: ffff80001fc377c0 x26: dfff800000000000 x25: ffffffffffffffe4 x24: 1fffe0001bd044cf x23: ffff0000de82267c x22: ffff0000d8647158 x21: 0000000000690000 x20: 00000000ffffffe4 x19: ffff0000de822688 x18: 0000000000000001 x17: 0000000000000002 x16: ffff8000111bc798 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000 x11: 000000000007ffff x10: ffff800026d1b000 x9 : 1d2a16bd73db3000 x8 : 1d2a16bd73db3000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001fc37018 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: 87958 hardirqs last enabled at (87957): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (87958): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (87946): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (87946): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (87847): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (87847): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (87847): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (87847): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 3e5f194ccaf69069 ]--- 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