BTRFS info (device loop0): balance: start -s ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4735 at fs/btrfs/block-group.c:2539 btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2539 Modules linked in: CPU: 1 PID: 4735 Comm: syz.0.77 Not tainted 6.1.141-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_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2539 lr : btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2539 sp : ffff800020f174c0 x29: ffff800020f176f0 x28: ffff0000d8ec71b8 x27: 1fffe0001bfd409d x26: 1fffe0001b1d8e0b x25: 1fffe0001b1d8e0a x24: 0000000000000000 x23: dfff800000000000 x22: ffff0000d8ec7058 x21: 0000000000000000 x20: ffff0000d8ec7050 x19: 00000000ffffffe4 x18: ffff800011a7bce0 x17: 1fffe00033ee7176 x16: ffff8000082d1c00 x15: 0000000040000000 x14: 0000000000000002 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 x11: ff0080000a88a3b4 x10: 0000000000000003 x9 : 3c8ca8b58e1b6500 x8 : 3c8ca8b58e1b6500 x7 : ffff8000082516dc x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000007 x1 : ffff800011a7d7e0 x0 : ffff80018a773000 Call trace: btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2539 __btrfs_end_transaction+0x134/0x5fc fs/btrfs/transaction.c:1012 btrfs_end_transaction+0x24/0x34 fs/btrfs/transaction.c:1051 btrfs_inc_block_group_ro+0x59c/0x634 fs/btrfs/block-group.c:2803 btrfs_relocate_block_group+0x314/0x970 fs/btrfs/relocation.c:4052 btrfs_relocate_chunk+0x104/0x364 fs/btrfs/volumes.c:3344 __btrfs_balance+0x1390/0x1af8 fs/btrfs/volumes.c:4092 btrfs_balance+0xa44/0xe20 fs/btrfs/volumes.c:4468 btrfs_ioctl_balance+0x3c0/0x5f8 fs/btrfs/ioctl.c:4531 btrfs_ioctl+0xac4/0xbd0 fs/btrfs/ioctl.c:5570 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+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 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:585 irq event stamp: 74160 hardirqs last enabled at (74159): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (74159): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003 hardirqs last disabled at (74160): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (74064): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (74064): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (74047): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0: state EA): dumping space info: BTRFS info (device loop0: state EA): space_info DATA+METADATA has 2174976 free, is full BTRFS info (device loop0: state EA): space_info total=3276800, used=49152, pinned=0, reserved=0, may_use=1052672, readonly=0 zone_unusable=0 BTRFS info (device loop0: state EA): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop0: state EA): space_info total=12451840, used=4096, pinned=0, reserved=4096, may_use=0, readonly=4190208 zone_unusable=0 BTRFS info (device loop0: state EA): global_block_rsv: size 983040 reserved 983040 BTRFS info (device loop0: state EA): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0: state EA): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0: state EA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0: state EA): delayed_refs_rsv: size 196608 reserved 69632 BTRFS: error (device loop0: state EA) in btrfs_create_pending_block_groups:2539: errno=-28 No space left BTRFS: error (device loop0: state EA) in btrfs_create_pending_block_groups:2551: errno=-28 No space left BTRFS info (device loop0: state EA): balance: ended with status: -30