BTRFS critical (device loop4): entry offset 6901760, bytes 1617920, bitmap no BTRFS info (device loop4): block group has cluster?: no BTRFS info (device loop4): 1 blocks of free space at or bigger than bytes is ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6033 at fs/btrfs/block-group.c:2562 btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2562 Modules linked in: CPU: 1 PID: 6033 Comm: syz.4.487 Not tainted 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_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2562 lr : btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2562 sp : ffff8000212974c0 x29: ffff8000212976f0 x28: ffff0000f451c1b8 x27: 1fffe0001c46401f x26: 1fffe0001e8a380b x25: 1fffe0001e8a380a x24: 0000000000000000 x23: dfff800000000000 x22: ffff0000f451c058 x21: 0000000000000000 x20: ffff0000f451c050 x19: 00000000ffffffe4 x18: ffff800011abbcc0 x17: 0000000000000000 x16: ffff8000082d22e0 x15: 0000000000000002 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000 x11: 000000000007ffff x10: ffff80002a130000 x9 : 1c6d52988c0ab500 x8 : 1c6d52988c0ab500 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800021296f58 x4 : ffff8000151a4820 x3 : ffff80000852e150 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: btrfs_create_pending_block_groups+0xb08/0xd64 fs/btrfs/block-group.c:2562 __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:2826 btrfs_relocate_block_group+0x314/0x970 fs/btrfs/relocation.c:4071 btrfs_relocate_chunk+0x104/0x364 fs/btrfs/volumes.c:3350 __btrfs_balance+0x1390/0x1af8 fs/btrfs/volumes.c:4098 btrfs_balance+0xa44/0xe20 fs/btrfs/volumes.c:4474 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: 76758 hardirqs last enabled at (76757): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (76758): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (76600): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (76600): [] handle_softirqs+0xaf8/0xc6c kernel/softirq.c:624 softirqs last disabled at (76591): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop4: state A): dumping space info: BTRFS info (device loop4: state A): space_info DATA+METADATA has 1769472 free, is full BTRFS info (device loop4: state A): space_info total=3276800, used=61440, pinned=0, reserved=0, may_use=1445888, 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=4096, may_use=0, readonly=4190208 zone_unusable=0 BTRFS info (device loop4: state A): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop4: state A): trans_block_rsv: size 0 reserved 0 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 393216 reserved 4096 BTRFS: error (device loop4: state A) in btrfs_create_pending_block_groups:2562: errno=-28 No space left BTRFS info (device loop4: state EA): forced readonly BTRFS error (device loop4: state EA): allocation failed flags 12, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop4: state EA): space_info DATA+METADATA has 1769472 free, is full BTRFS info (device loop4: state EA): space_info total=3276800, used=61440, pinned=0, reserved=0, may_use=1445888, readonly=0 zone_unusable=0 BTRFS info (device loop4: state EA): global_block_rsv: size 1441792 reserved 1437696 BTRFS info (device loop4: state EA): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): delayed_refs_rsv: size 393216 reserved 4096 BTRFS info (device loop4: state EA): block group 5242880 has 1638400 bytes, 40960 used 0 pinned 0 reserved 0 zone_unusable BTRFS critical (device loop4: state EA): entry offset 5242880, bytes 12288, bitmap no BTRFS critical (device loop4: state EA): entry offset 5259264, bytes 8192, bitmap no BTRFS critical (device loop4: state EA): entry offset 5271552, bytes 16384, bitmap no BTRFS critical (device loop4: state EA): entry offset 5316608, bytes 28672, bitmap no BTRFS critical (device loop4: state EA): entry offset 5349376, bytes 1531904, bitmap no BTRFS info (device loop4: state EA): block group has cluster?: no BTRFS info (device loop4: state EA): 5 blocks of free space at or bigger than bytes is BTRFS info (device loop4: state EA): block group 6881280 has 1638400 bytes, 20480 used 0 pinned 0 reserved 0 zone_unusable BTRFS critical (device loop4: state EA): entry offset 6901760, bytes 1617920, bitmap no BTRFS info (device loop4: state EA): block group has cluster?: no BTRFS info (device loop4: state EA): 1 blocks of free space at or bigger than bytes is BTRFS: error (device loop4: state EA) in btrfs_create_pending_block_groups:2574: errno=-28 No space left BTRFS error (device loop4: state EA): allocation failed flags 12, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop4: state EA): space_info DATA+METADATA has 1769472 free, is full BTRFS info (device loop4: state EA): space_info total=3276800, used=61440, pinned=0, reserved=0, may_use=1445888, readonly=0 zone_unusable=0 BTRFS info (device loop4: state EA): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop4: state EA): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop4: state EA): delayed_refs_rsv: size 393216 reserved 0 BTRFS info (device loop4: state EA): block group 5242880 has 1638400 bytes, 40960 used 0 pinned 0 reserved 0 zone_unusable BTRFS critical (device loop4: state EA): entry offset 5242880, bytes 12288, bitmap no BTRFS critical (device loop4: state EA): entry offset 5259264, bytes 8192, bitmap no BTRFS critical (device loop4: state EA): entry offset 5271552, bytes 16384, bitmap no BTRFS critical (device loop4: state EA): entry offset 5316608, bytes 28672, bitmap no BTRFS critical (device loop4: state EA): entry offset 5349376, bytes 1531904, bitmap no BTRFS info (device loop4: state EA): block group has cluster?: no BTRFS info (device loop4: state EA): 5 blocks of free space at or bigger than bytes is BTRFS info (device loop4: state EA): block group 6881280 has 1638400 bytes, 20480 used 0 pinned 0 reserved 0 zone_unusable BTRFS critical (device loop4: state EA): entry offset 6901760, bytes 1617920, bitmap no BTRFS info (device loop4: state EA): block group has cluster?: no BTRFS info (device loop4: state EA): 1 blocks of free space at or bigger than bytes is BTRFS: error (device loop4: state EA) in add_block_group_free_space:1398: errno=-28 No space left BTRFS info (device loop4: state EA): balance: ended with status: -30