------------[ cut here ]------------
WARNING: CPU: 0 PID: 1673 at fs/btrfs/block-group.c:3487 do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
WARNING: CPU: 0 PID: 1673 at fs/btrfs/block-group.c:3487 btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
Modules linked in:
CPU: 0 PID: 1673 Comm: kworker/u4:6 Not tainted 5.15.161-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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:3487 [inline]
pc : btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
lr : do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
lr : btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
sp : ffff800020ba78a0
x29: ffff800020ba7900 x28: ffff0000e1a032c0 x27: 0000000000000005
x26: ffffffffffffffe4 x25: ffff0000e1a0330b x24: ffff0000d5740868
x23: 00000000ffffffe4 x22: 1fffe0001c340663 x21: ffff0000e50a8800
x20: dfff800000000000 x19: ffff0000d06a8800 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001199d104 x15: 00000000ffffffff
x14: ffff0000cd26d1c0 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : d6a6aa038b7c3d00
x8 : d6a6aa038b7c3d00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800020ba7018 x4 : ffff800014a2f7a0 x3 : ffff8000085503f4
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 do_chunk_alloc fs/btrfs/block-group.c:3487 [inline]
 btrfs_chunk_alloc+0x8f8/0xcdc fs/btrfs/block-group.c:3710
 flush_space+0x44c/0xc94 fs/btrfs/space-info.c:670
 btrfs_async_reclaim_data_space+0xec/0x37c fs/btrfs/space-info.c:1169
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
irq event stamp: 691732
hardirqs last  enabled at (691731): [<ffff80000832c61c>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (691732): [<ffff800011998790>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (691274): [<ffff8000117c199c>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (691274): [<ffff8000117c199c>] batadv_nc_purge_paths+0x308/0x38c net/batman-adv/network-coding.c:475
softirqs last disabled at (691272): [<ffff8000117c1764>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (691272): [<ffff8000117c1764>] batadv_nc_purge_paths+0xd0/0x38c net/batman-adv/network-coding.c:446
---[ end trace dbe7491a8a9a0a7f ]---
BTRFS: error (device loop2) in do_chunk_alloc:3487: errno=-28 No space left
BTRFS info (device loop2): forced readonly