BTRFS info (device loop0): balance: start -s
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BTRFS: Transaction aborted (error -28)
WARNING: CPU: 1 PID: 8121 at fs/btrfs/block-group.c:2796 btrfs_create_pending_block_groups+0xe80/0x1514 fs/btrfs/block-group.c:2796
Modules linked in:
CPU: 1 UID: 0 PID: 8121 Comm: syz.0.224 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : btrfs_create_pending_block_groups+0xe80/0x1514 fs/btrfs/block-group.c:2796
lr : btrfs_create_pending_block_groups+0xe80/0x1514 fs/btrfs/block-group.c:2796
sp : ffff80009c7a74c0
x29: ffff80009c7a76f0 x28: 1fffe00019d03314 x27: ffff0000ce819850
x26: 1fffe00019d0330b x25: ffff0000ce819858 x24: ffff0000f6d4c188
x23: dfff800000000000 x22: ffff0000dca7c000 x21: 0000000000000000
x20: 0000000000000000 x19: 00000000ffffffe4 x18: 00000000ffffffff
x17: ffff80009353a000 x16: ffff80008b021140 x15: 0000000000000001
x14: 1ffff000138f4e08 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 000000000001dcc7 x9 : 99f1f9ff62f66c00
x8 : 99f1f9ff62f66c00 x7 : ffff800080565b6c x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807e08b4
x2 : 0000000000000002 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 btrfs_create_pending_block_groups+0xe80/0x1514 fs/btrfs/block-group.c:2796 (P)
 __btrfs_end_transaction+0x134/0x5f4 fs/btrfs/transaction.c:1071
 btrfs_end_transaction+0x24/0x34 fs/btrfs/transaction.c:1110
 btrfs_inc_block_group_ro+0x588/0x62c fs/btrfs/block-group.c:3092
 btrfs_relocate_block_group+0x314/0xacc fs/btrfs/relocation.c:3950
 btrfs_relocate_chunk+0x108/0x54c fs/btrfs/volumes.c:3451
 __btrfs_balance+0x1358/0x1d30 fs/btrfs/volumes.c:4227
 btrfs_balance+0x8cc/0xf58 fs/btrfs/volumes.c:4604
 btrfs_ioctl_balance+0x350/0x550 fs/btrfs/ioctl.c:3577
 btrfs_ioctl+0xb04/0xc3c fs/btrfs/ioctl.c:5298
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl fs/ioctl.c:584 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:584
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:763
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 50818
hardirqs last  enabled at (50817): [<ffff80008b01fe74>] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214
hardirqs last disabled at (50818): [<ffff80008b01a2c4>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434
softirqs last  enabled at (50562): [<ffff8000803da960>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (50562): [<ffff8000803da960>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (50539): [<ffff800080022028>] __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 (sub-group id 0) 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 (sub-group id 0) 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:2796: 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:2808: errno=-28 No space left
BTRFS info (device loop0 state EA): balance: ended with status: -30