------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 1 PID: 2192 at fs/btrfs/block-group.c:3972 do_chunk_alloc fs/btrfs/block-group.c:3972 [inline]
WARNING: CPU: 1 PID: 2192 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: 2192 Comm: kworker/u8:8 Not tainted 6.15.0-rc4-syzkaller-ge0f4c8dd9d2d #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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 : ffff8000a0c77730
x29: ffff8000a0c777a0 x28: ffff0000c3011800 x27: ffffffffffffffe4
x26: ffff0000f2cc4183 x25: 1fffe000198bc713 x24: ffff0000d56b4000
x23: ffff0000f2cc4128 x22: 0000000000000000 x21: 0000000000000000
x20: ffff0000cc5e3800 x19: dfff800000000000 x18: 00000000ffffffff
x17: 0000000000000000 x16: ffff80008ad0f308 x15: ffff700011e6ff40
x14: 1ffff00011e6ff40 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700011e6ff40 x10: 0000000000ff0100 x9 : bb522e7f5a6b7500
x8 : bb522e7f5a6b7500 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000a0c77078 x4 : ffff80008f3f4fa0 x3 : ffff80008053fd64
x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000
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:862
irq event stamp: 387208
hardirqs last  enabled at (387207): [<ffff800080547290>] __up_console_sem kernel/printk/printk.c:344 [inline]
hardirqs last  enabled at (387207): [<ffff800080547290>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885
hardirqs last disabled at (387208): [<ffff80008ada1368>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (387180): [<ffff8000803c671c>] softirq_handle_end kernel/softirq.c:425 [inline]
softirqs last  enabled at (387180): [<ffff8000803c671c>] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607
softirqs last disabled at (387155): [<ffff800080020efc>] __do_softirq+0x14/0x20 kernel/softirq.c:613
---[ end trace 0000000000000000 ]---
BTRFS info (device loop4 state A): dumping space info:
BTRFS info (device loop4 state A): space_info DATA+METADATA has 122880 free, is not full
BTRFS info (device loop4 state A): space_info total=11534336, used=53248, pinned=20480, reserved=1257472, may_use=10080256, 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 32768 reserved 32768
BTRFS info (device loop4 state A): delayed_refs_rsv: size 1048576 reserved 983040
BTRFS: error (device loop4 state A) in do_chunk_alloc:3972: errno=-28 No space left
BTRFS info (device loop4 state EA): forced readonly