------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/block-group.c:4012 at do_chunk_alloc fs/btrfs/block-group.c:4012 [inline], CPU#0: kworker/u8:2/41
WARNING: fs/btrfs/block-group.c:4012 at btrfs_chunk_alloc+0x1150/0x1780 fs/btrfs/block-group.c:4253, CPU#0: kworker/u8:2/41
Modules linked in:
CPU: 0 UID: 0 PID: 41 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : do_chunk_alloc fs/btrfs/block-group.c:4012 [inline]
pc : btrfs_chunk_alloc+0x1150/0x1780 fs/btrfs/block-group.c:4253
lr : do_chunk_alloc fs/btrfs/block-group.c:4012 [inline]
lr : btrfs_chunk_alloc+0x1150/0x1780 fs/btrfs/block-group.c:4253
sp : ffff800097fe7770
x29: ffff800097fe7840 x28: ffffffffffffffe4 x27: 0000000000000001
x26: dfff800000000000 x25: ffff0000da267000 x24: ffff0000fa450000
x23: 0000000000280000 x22: ffff0000c1741b90 x21: 0000000000000000
x20: ffff0000cfb92800 x19: 0000000000000000 x18: 1fffe0003377d090
x17: ffff80008f86e000 x16: ffff800082e5e68c x15: 0000000000000001
x14: 1fffe0003377fb48 x13: 0000000000000000 x12: 0000000000000000
x11: ffff800093398d48 x10: 0000000000000003 x9 : fa6731dc549b5b00
x8 : fa6731dc549b5b00 x7 : ffff80008049ea88 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000010
x2 : 0000000000000006 x1 : ffff80008b5a9ce0 x0 : 0000000000000001
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:4012 [inline] (P)
 btrfs_chunk_alloc+0x1150/0x1780 fs/btrfs/block-group.c:4253 (P)
 flush_space+0x300/0xb64 fs/btrfs/space-info.c:894
 do_async_reclaim_metadata_space+0x108/0x324 fs/btrfs/space-info.c:1185
 btrfs_async_reclaim_metadata_space+0x90/0xd8 fs/btrfs/space-info.c:1252
 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257
 process_scheduled_works kernel/workqueue.c:3340 [inline]
 worker_thread+0x958/0xed8 kernel/workqueue.c:3421
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844
irq event stamp: 27938
hardirqs last  enabled at (27937): [<ffff80008049eb1c>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1570 [inline]
hardirqs last  enabled at (27937): [<ffff80008049eb1c>] finish_lock_switch+0xb0/0x1c0 kernel/sched/core.c:4995
hardirqs last disabled at (27938): [<ffff80008af93820>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412
softirqs last  enabled at (27740): [<ffff8000801fa738>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (27738): [<ffff8000801fa704>] 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 (sub-group id 0) has 6746112 free, is not full
BTRFS info (device loop4 state A): space_info total=11534336, used=61440, pinned=0, reserved=1400832, may_use=3325952, readonly=0 zone_unusable=0
BTRFS info (device loop4 state A): space_info SYSTEM (sub-group id 0) 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 32768 reserved 32768
BTRFS info (device loop4 state A): delayed_refs_rsv: size 983040 reserved 983040
BTRFS: error (device loop4 state A) in do_chunk_alloc:4012: 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:2797: errno=-28 No space left