------------[ cut here ]------------
WARNING: CPU: 0 PID: 9 at fs/btrfs/block-group.c:3688 do_chunk_alloc fs/btrfs/block-group.c:3688 [inline]
WARNING: CPU: 0 PID: 9 at fs/btrfs/block-group.c:3688 btrfs_chunk_alloc+0xd5c/0xfa4 fs/btrfs/block-group.c:3930
Modules linked in:
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.1.131-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: events_unbound btrfs_async_reclaim_data_space
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : do_chunk_alloc fs/btrfs/block-group.c:3688 [inline]
pc : btrfs_chunk_alloc+0xd5c/0xfa4 fs/btrfs/block-group.c:3930
lr : do_chunk_alloc fs/btrfs/block-group.c:3688 [inline]
lr : btrfs_chunk_alloc+0xd5c/0xfa4 fs/btrfs/block-group.c:3930
sp : ffff80001d2c7890
x29: ffff80001d2c7900 x28: ffff0000dec12000 x27: 1fffe00019bab313
x26: 1fffe0001bed1e72 x25: ffff0000df68f393 x24: dfff800000000000
x23: ffff0000df68f348 x22: 0000000000000000 x21: 0000000000000000
x20: ffffffffffffffe4 x19: ffff0000cdd59800 x18: ffff80001d2c6d00
x17: 0000000000000000 x16: ffff800012327ebc x15: 0000000000000000
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000ff0100 x10: 0000000000000000 x9 : f5d08360ffdab300
x8 : f5d08360ffdab300 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001d2c7178 x4 : ffff800015be5320 x3 : ffff8000085888b0
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3688 [inline]
 btrfs_chunk_alloc+0xd5c/0xfa4 fs/btrfs/block-group.c:3930
 flush_space+0x8c4/0xdb8 fs/btrfs/space-info.c:766
 btrfs_async_reclaim_data_space+0xf8/0x410 fs/btrfs/space-info.c:1296
 process_one_work+0x804/0x1484 kernel/workqueue.c:2292
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864
irq event stamp: 737280
hardirqs last  enabled at (737279): [<ffff8000083404bc>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261
hardirqs last disabled at (737280): [<ffff800012323b9c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (737104): [<ffff800012095ea8>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (737104): [<ffff800012095ea8>] batadv_nc_purge_paths+0x2f4/0x378 net/batman-adv/network-coding.c:471
softirqs last disabled at (737102): [<ffff800012095c84>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (737102): [<ffff800012095c84>] batadv_nc_purge_paths+0xd0/0x378 net/batman-adv/network-coding.c:442
---[ end trace 0000000000000000 ]---
BTRFS info (device loop2: state A): dumping space info:
BTRFS info (device loop2: state A): space_info DATA+METADATA has 5042176 free, is not full
BTRFS info (device loop2: state A): space_info total=11534336, used=53248, pinned=0, reserved=4255744, may_use=2183168, readonly=0 zone_unusable=0
BTRFS info (device loop2: state A): space_info SYSTEM has -98304 free, is not full
BTRFS info (device loop2: state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=98304, readonly=4190208 zone_unusable=0
BTRFS info (device loop2: state A): global_block_rsv: size 1441792 reserved 1441792
BTRFS info (device loop2: state A): trans_block_rsv: size 0 reserved 0
BTRFS info (device loop2: state A): chunk_block_rsv: size 98304 reserved 98304
BTRFS info (device loop2: state A): delayed_block_rsv: size 131072 reserved 131072
BTRFS info (device loop2: state A): delayed_refs_rsv: size 1048576 reserved 610304
BTRFS: error (device loop2: state A) in do_chunk_alloc:3688: errno=-28 No space left
BTRFS info (device loop2: state EA): forced readonly
BTRFS: error (device loop2: state EA) in btrfs_create_pending_block_groups:2542: errno=-28 No space left