------------[ cut here ]------------
WARNING: CPU: 1 PID: 4150 at fs/btrfs/extent-tree.c:3067 __btrfs_free_extent+0x974/0x2100 fs/btrfs/extent-tree.c:3067
Modules linked in:
CPU: 1 PID: 4150 Comm: kworker/u4:9 Not tainted 5.15.180-syzkaller #0
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 : __btrfs_free_extent+0x974/0x2100 fs/btrfs/extent-tree.c:3067
lr : __btrfs_free_extent+0x974/0x2100 fs/btrfs/extent-tree.c:3067
sp : ffff8000206d72a0
x29: ffff8000206d7440 x28: 0000000000000000 x27: ffff0000e82d3370
x26: 00000000ffffffe4 x25: 0000000000000001 x24: fffffffffffffff7
x23: dfff800000000000 x22: 0000000000000000 x21: ffff0000d699d9d0
x20: 0000000000000000 x19: ffff0000eb821160 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800011b616c4 x15: 00000000ffffffff
x14: ffff0000c0b88000 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : 27f24b5d1564ed00
x8 : 27f24b5d1564ed00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000206d6a18 x4 : ffff800014c5fe40 x3 : ffff800008559804
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 __btrfs_free_extent+0x974/0x2100 fs/btrfs/extent-tree.c:3067
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1692 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1716 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1962 [inline]
 __btrfs_run_delayed_refs+0xdd0/0x3d50 fs/btrfs/extent-tree.c:2025
 btrfs_run_delayed_refs+0x11c/0x47c fs/btrfs/extent-tree.c:2156
 flush_space+0x890/0xc94 fs/btrfs/space-info.c:660
 btrfs_async_reclaim_metadata_space+0x6c8/0x80c fs/btrfs/space-info.c:953
 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: 547964
hardirqs last  enabled at (547963): [<ffff80000832ca28>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (547964): [<ffff800011b5cd78>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (547952): [<ffff8000081b70b8>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (547952): [<ffff8000081b70b8>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (547921): [<ffff8000081b7750>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (547921): [<ffff8000081b7750>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (547921): [<ffff8000081b7750>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (547921): [<ffff8000081b7750>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace 33d44c094cbb436a ]---
BTRFS: error (device loop4) in __btrfs_free_extent:3067: errno=-28 No space left
BTRFS info (device loop4): forced readonly
BTRFS error (device loop4): failed to run delayed ref for logical 5242880 num_bytes 4096 type 176 action 2 ref_mod 1: -28
BTRFS: error (device loop4) in btrfs_run_delayed_refs:2158: errno=-28 No space left