BTRFS info (device loop5): relocating block group 1048576 flags system ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3374 at fs/btrfs/volumes.c:3175 btrfs_remove_chunk+0x784/0xa14 fs/btrfs/volumes.c:3175 Modules linked in: CPU: 0 PID: 3374 Comm: syz-executor.5 Not tainted 6.1.0-rc7-syzkaller-33054-gcdb931b58ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x784/0xa14 fs/btrfs/volumes.c:3175 lr : btrfs_remove_chunk+0x784/0xa14 fs/btrfs/volumes.c:3175 sp : ffff800013773ad0 x29: ffff800013773af0 x28: 0000000000000001 x27: ffff0000d16bc000 x26: ffff0000d117d878 x25: ffff0000d168bc00 x24: ffff0000d16b0000 x23: 0000000000100000 x22: ffffffffffffffe4 x21: ffff0000c928c6c0 x20: 0000000000000000 x19: ffff0000d05c7138 x18: 00000000000000eb x17: ffff80000c0cd83c x16: ffff80000dbe6158 x15: ffff0000d5ef0000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000d5ef0000 x11: ff808000081c4d64 x10: 0000000000000000 x9 : 4f923f3033c9b600 x8 : 4f923f3033c9b600 x7 : ffff80000c091344 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_remove_chunk+0x784/0xa14 fs/btrfs/volumes.c:3175 btrfs_relocate_chunk+0x16c/0x200 fs/btrfs/volumes.c:3298 __btrfs_balance+0xb98/0xd50 fs/btrfs/volumes.c:3990 btrfs_balance+0x770/0xb64 fs/btrfs/volumes.c:4373 btrfs_ioctl_balance+0x264/0x478 fs/btrfs/ioctl.c:4484 btrfs_ioctl+0x6b4/0xa64 fs/btrfs/ioctl.c:5515 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+0xd0/0x140 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 irq event stamp: 85776 hardirqs last enabled at (85775): [] __up_console_sem+0xb0/0xfc kernel/printk/printk.c:261 hardirqs last disabled at (85776): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (84340): [] _stext+0x2e4/0x37c softirqs last disabled at (84321): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 ---[ 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:3175: 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