------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 1 PID: 2055 at fs/btrfs/block-group.c:3972 do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
WARNING: CPU: 1 PID: 2055 at fs/btrfs/block-group.c:3972 btrfs_chunk_alloc+0xf5c/0x1200 fs/btrfs/block-group.c:4214
Modules linked in:
CPU: 1 UID: 0 PID: 2055 Comm: kworker/u8:8 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
pc : btrfs_chunk_alloc+0xf5c/0x1200 fs/btrfs/block-group.c:4214
lr : do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
lr : btrfs_chunk_alloc+0xf5c/0x1200 fs/btrfs/block-group.c:4214
sp : ffff8000a0097730
x29: ffff8000a00977a0 x28: ffff0000d34c2800 x27: ffffffffffffffe4
x26: ffff0000ddd674fb x25: 1fffe0001e316013 x24: ffff0000cc794000
x23: ffff0000ddd674a0 x22: 0000000000000000 x21: 0000000000000000
x20: ffff0000f18b0000 x19: dfff800000000000 x18: 1fffe0003386f276
x17: ffff80008f31e000 x16: ffff80008adbe9e4 x15: 0000000000000001
x14: 1fffe00033871ce8 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800092d38c40 x10: 0000000000000003 x9 : e8c22515ba9efb00
x8 : e8c22515ba9efb00 x7 : ffff800080485878 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : ffff80008b3ebc40 x0 : 0000000000000001
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3972 [inline] (P)
 btrfs_chunk_alloc+0xf5c/0x1200 fs/btrfs/block-group.c:4214 (P)
 flush_space+0x2f0/0xb64 fs/btrfs/space-info.c:815
 btrfs_async_reclaim_metadata_space+0x32c/0x75c fs/btrfs/space-info.c:1120
 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238
 process_scheduled_works kernel/workqueue.c:3319 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3400
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847
irq event stamp: 116644
hardirqs last  enabled at (116643): [<ffff80008048590c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1525 [inline]
hardirqs last  enabled at (116643): [<ffff80008048590c>] finish_lock_switch+0xb0/0x1c0 kernel/sched/core.c:5130
hardirqs last disabled at (116644): [<ffff80008adb9eb8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511
softirqs last  enabled at (116340): [<ffff8000801fbf10>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (116338): [<ffff8000801fbedc>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
BTRFS info (device loop4 state A): dumping space info:
BTRFS info (device loop4 state A): space_info DATA+METADATA has 8781824 free, is not full
BTRFS info (device loop4 state A): space_info total=11534336, used=53248, pinned=0, reserved=12288, may_use=2686976, readonly=0 zone_unusable=0
BTRFS info (device loop4 state A): space_info SYSTEM has -98304 free, is not full
BTRFS info (device loop4 state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, 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 98304 reserved 98304
BTRFS info (device loop4 state A): delayed_block_rsv: size 393216 reserved 393216
BTRFS info (device loop4 state A): delayed_refs_rsv: size 851968 reserved 851968
BTRFS: error (device loop4 state A) in do_chunk_alloc:3972: errno=-28 No space left
BTRFS info (device loop4 state EA): forced readonly
BTRFS: error (device loop4 state EA) in btrfs_create_pending_block_groups:2788: errno=-28 No space left