------------[ cut here ]------------
WARNING: CPU: 0 PID: 251 at fs/btrfs/block-group.c:3715 do_chunk_alloc fs/btrfs/block-group.c:3715 [inline]
WARNING: CPU: 0 PID: 251 at fs/btrfs/block-group.c:3715 btrfs_chunk_alloc+0xe08/0x1150 fs/btrfs/block-group.c:3957
Modules linked in:
CPU: 0 PID: 251 Comm: kworker/u4:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: events_unbound btrfs_async_reclaim_metadata_space
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : do_chunk_alloc fs/btrfs/block-group.c:3715 [inline]
pc : btrfs_chunk_alloc+0xe08/0x1150 fs/btrfs/block-group.c:3957
lr : do_chunk_alloc fs/btrfs/block-group.c:3715 [inline]
lr : btrfs_chunk_alloc+0xe08/0x1150 fs/btrfs/block-group.c:3957
sp : ffff800020c478c0
x29: ffff800020c47920 x28: ffff0000f6439000 x27: ffffffffffffffe4
x26: ffff0000dab20000 x25: 1fffe0001a391413 x24: ffff0000dab20000
x23: ffff0000c66aa738 x22: 0000000000000000 x21: 0000000000000000
x20: ffff0000d1c8a000 x19: dfff800000000000 x18: ffff800011a5bd40
x17: 1fffe00033ee7b7e x16: ffff8000082d3a08 x15: 0000000040000000
x14: 0000000000000002 x13: 1ffff00002a0a0b1 x12: 0000000000ff0100
x11: ff0080000a895d54 x10: 0000000000000003 x9 : 30b8eb9c160be800
x8 : 30b8eb9c160be800 x7 : ffff8000082532dc x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff800011a5d840 x0 : ffff80018a798000
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3715 [inline]
 btrfs_chunk_alloc+0xe08/0x1150 fs/btrfs/block-group.c:3957
 flush_space+0x858/0xcdc fs/btrfs/space-info.c:766
 btrfs_async_reclaim_metadata_space+0x25c/0x308 fs/btrfs/space-info.c:1080
 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292
 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
irq event stamp: 1249458
hardirqs last  enabled at (1249457): [<ffff800008253370>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (1249457): [<ffff800008253370>] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:5003
hardirqs last disabled at (1249458): [<ffff8000118fa220>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (1245926): [<ffff8000111687f4>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (1245926): [<ffff8000111687f4>] ieee80211_ibss_work+0x2a4/0xd60 net/mac80211/ibss.c:1701
softirqs last disabled at (1245924): [<ffff800011168620>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (1245924): [<ffff800011168620>] ieee80211_ibss_work+0xd0/0xd60 net/mac80211/ibss.c:1690
---[ end trace 0000000000000000 ]---
BTRFS info (device loop0: state A): dumping space info:
BTRFS info (device loop0: state A): space_info DATA+METADATA has 688128 free, is not full
BTRFS info (device loop0: state A): space_info total=11534336, used=49152, pinned=0, reserved=1568768, may_use=9228288, readonly=0 zone_unusable=0
BTRFS info (device loop0: state A): space_info SYSTEM has -98304 free, is not full
BTRFS info (device loop0: state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, 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 98304 reserved 98304
BTRFS info (device loop0: state A): delayed_block_rsv: size 32768 reserved 32768
BTRFS info (device loop0: state A): delayed_refs_rsv: size 851968 reserved 851968
BTRFS: error (device loop0: state A) in do_chunk_alloc:3715: errno=-28 No space left
BTRFS info (device loop0: state EA): forced readonly