BTRFS info (device loop5): relocating block group 1048576 flags system ------------[ cut here ]------------ WARNING: CPU: 0 PID: 31785 at fs/btrfs/volumes.c:3211 btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3211 Modules linked in: CPU: 0 PID: 31785 Comm: syz-executor.5 Not tainted 6.1.23-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 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 : ffff8000250076a0 x29: ffff800025007820 x28: 0000000000100000 x27: ffff000134df9830 x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000cb280d00 x23: ffff700004a00eec x22: 1fffe000190a9ae0 x21: ffff0000c854d700 x20: 0000000000000000 x19: 0000000000000000 x18: ffff800025006fc0 x17: ffff80001557d000 x16: ffff8000083019d8 x15: ffff800008a78eec x14: ffff80000a1abf90 x13: ffff8000080620b0 x12: 0000000000040000 x11: 000000000003ffff x10: 0000000000000003 x9 : 32ad04cc2aab7500 x8 : 32ad04cc2aab7500 x7 : ffff800008061ea0 x6 : ffff8000080620b0 x5 : ffff0000c1ac1528 x4 : ffff8000250070a0 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff80001222c140 x0 : ffff80019f0e4000 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: 88222 hardirqs last enabled at (88221): [] call_rcu+0x614/0xa40 kernel/rcu/tree.c:2833 hardirqs last disabled at (88222): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (86878): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (86878): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (86859): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop5: state A): dumping space info: BTRFS info (device loop5: state A): space_info DATA+METADATA has 1867776 free, is not full BTRFS info (device loop5: state A): space_info total=3276800, used=61440, pinned=0, reserved=8192, may_use=1339392, readonly=0 zone_unusable=0 BTRFS info (device loop5: state A): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop5: state A): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=0, readonly=4194304 zone_unusable=0 BTRFS info (device loop5: state A): global_block_rsv: size 917504 reserved 913408 BTRFS info (device loop5: state A): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop5: state A): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop5: state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop5: state A): delayed_refs_rsv: size 524288 reserved 163840 BTRFS: error (device loop5: state A) in btrfs_remove_chunk:3211: errno=-28 No space left BTRFS info (device loop5: state EA): forced readonly BTRFS info (device loop5: state EA): 1 enospc errors during balance BTRFS info (device loop5: state EA): balance: ended with status: -28