BTRFS info (device loop4): relocating block group 1048576 flags system ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15620 at fs/btrfs/volumes.c:3211 btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3211 Modules linked in: CPU: 0 PID: 15620 Comm: syz-executor.4 Not tainted 6.1.25-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3211 lr : btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3211 sp : ffff800021ae76a0 x29: ffff800021ae7820 x28: 0000000000100000 x27: ffff0000e064bb78 x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000da23f5b0 x23: ffff70000435ceec x22: 1fffe0001985a640 x21: ffff0000cc2d3200 x20: 0000000000000000 x19: 0000000000000000 x18: 0000ffff9d105fff x17: ffff80001557d000 x16: ffff800008303464 x15: 0000000000000000 x14: 1ffff00002ab00b0 x13: dfff800000000000 x12: 0000000000000001 x11: 1fffe00019a629d0 x10: 0000000000000000 x9 : a2f929856f3a8a00 x8 : a2f929856f3a8a00 x7 : ffff800008279fb8 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff800008267be0 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3211 btrfs_relocate_chunk+0x260/0x368 fs/btrfs/volumes.c:3341 __btrfs_balance+0x1468/0x1dc8 fs/btrfs/volumes.c:4033 btrfs_balance+0x9f0/0xe58 fs/btrfs/volumes.c:4416 btrfs_ioctl_balance+0x3e4/0x778 fs/btrfs/ioctl.c:4481 btrfs_ioctl+0x72c/0xb08 fs/btrfs/ioctl.c:5514 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 85752 hardirqs last enabled at (85751): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline] hardirqs last enabled at (85751): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (85752): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (84800): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (84800): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (84651): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop4: state A): dumping space info: BTRFS info (device loop4: state A): space_info DATA+METADATA has 1867776 free, is not full BTRFS info (device loop4: state A): space_info total=3276800, used=61440, pinned=0, reserved=8192, may_use=1339392, readonly=0 zone_unusable=0 BTRFS info (device loop4: state A): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop4: state A): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=0, readonly=4194304 zone_unusable=0 BTRFS info (device loop4: state A): global_block_rsv: size 917504 reserved 913408 BTRFS info (device loop4: state A): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop4: state A): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state A): delayed_refs_rsv: size 524288 reserved 163840 BTRFS: error (device loop4: state A) in btrfs_remove_chunk:3211: errno=-28 No space left BTRFS info (device loop4: state EA): forced readonly BTRFS info (device loop4: state EA): 1 enospc errors during balance BTRFS info (device loop4: state EA): balance: ended with status: -28