BTRFS info (device loop0): balance: start -susage=34359738372,drange=7..526336,limit=0..6 ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 7812 at fs/btrfs/block-group.c:2781 btrfs_create_pending_block_groups+0xe34/0x10f0 fs/btrfs/block-group.c:2781 Modules linked in: CPU: 1 UID: 0 PID: 7812 Comm: syz.0.325 Not tainted 6.15.0-rc6-syzkaller-ga82e92598ab1 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_create_pending_block_groups+0xe34/0x10f0 fs/btrfs/block-group.c:2781 lr : btrfs_create_pending_block_groups+0xe34/0x10f0 fs/btrfs/block-group.c:2781 sp : ffff80009e6474e0 x29: ffff80009e647710 x28: dfff800000000000 x27: ffff0000ddcbb508 x26: ffff0000ddcbb500 x25: ffff0000d98df1c0 x24: ffff0000d98df058 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000d98df050 x19: 00000000ffffffe4 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008adb97d4 x15: 0000000000000001 x14: 1fffe0003386f2e2 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000001843d x9 : 78d183e284e57f00 x8 : 78d183e284e57f00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009e646e38 x4 : ffff80008f415b40 x3 : ffff8000807b427c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: btrfs_create_pending_block_groups+0xe34/0x10f0 fs/btrfs/block-group.c:2781 (P) __btrfs_end_transaction+0x134/0x5f0 fs/btrfs/transaction.c:1070 btrfs_end_transaction+0x24/0x34 fs/btrfs/transaction.c:1109 btrfs_inc_block_group_ro+0x59c/0x634 fs/btrfs/block-group.c:3076 btrfs_relocate_block_group+0x310/0x95c fs/btrfs/relocation.c:3965 btrfs_relocate_chunk+0x104/0x378 fs/btrfs/volumes.c:3422 __btrfs_balance+0x1308/0x1a94 fs/btrfs/volumes.c:4203 btrfs_balance+0xa44/0xe30 fs/btrfs/volumes.c:4580 btrfs_ioctl_balance+0x350/0x550 fs/btrfs/ioctl.c:3586 btrfs_ioctl+0xb04/0xc38 fs/btrfs/ioctl.c:5306 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:892 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 66550 hardirqs last enabled at (66549): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (66549): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (66550): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (66336): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (66336): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (66143): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0 state A): dumping space info: BTRFS info (device loop0 state A): space_info DATA+METADATA has 2240512 free, is full BTRFS info (device loop0 state A): space_info total=3276800, used=49152, pinned=0, reserved=0, may_use=987136, readonly=0 zone_unusable=0 BTRFS info (device loop0 state A): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop0 state A): space_info total=12451840, used=4096, pinned=0, reserved=4096, may_use=0, readonly=4190208 zone_unusable=0 BTRFS info (device loop0 state A): global_block_rsv: size 983040 reserved 983040 BTRFS info (device loop0 state A): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0 state A): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0 state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0 state A): delayed_refs_rsv: size 196608 reserved 4096 BTRFS: error (device loop0 state A) in btrfs_create_pending_block_groups:2781: errno=-28 No space left BTRFS info (device loop0 state EA): forced readonly BTRFS: error (device loop0 state EA) in btrfs_create_pending_block_groups:2793: errno=-28 No space left BTRFS info (device loop0 state EA): balance: ended with status: -30