BTRFS info (device loop5): 1 enospc errors during balance
BTRFS info (device loop5): balance: canceled
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 8266 Comm: syz.5.409 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf9c/0x30a4 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x48/0x60 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 check_buffer_tree_ref+0x98/0x1bc fs/btrfs/extent_io.c:3134
 alloc_extent_buffer+0x149c/0x2128 fs/btrfs/extent_io.c:3528
 btrfs_find_create_tree_block+0x3c/0x50 fs/btrfs/disk-io.c:614
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:5049 [inline]
 btrfs_alloc_tree_block+0x1b4/0xe38 fs/btrfs/extent-tree.c:5162
 btrfs_force_cow_block+0x404/0x2058 fs/btrfs/ctree.c:517
 btrfs_cow_block+0x328/0x940 fs/btrfs/ctree.c:708
 btrfs_search_slot+0x96c/0x2228 fs/btrfs/ctree.c:2130
 btrfs_search_prev_slot fs/btrfs/free-space-tree.c:136 [inline]
 remove_free_space_extent fs/btrfs/free-space-tree.c:724 [inline]
 __btrfs_remove_from_free_space_tree fs/btrfs/free-space-tree.c:829 [inline]
 btrfs_remove_from_free_space_tree+0x450/0xcc8 fs/btrfs/free-space-tree.c:858
 alloc_reserved_extent+0x5c/0x36c fs/btrfs/extent-tree.c:4777
 alloc_reserved_tree_block fs/btrfs/extent-tree.c:4938 [inline]
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1744 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1776 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1973 [inline]
 __btrfs_run_delayed_refs+0x11fc/0x333c fs/btrfs/extent-tree.c:2048
 btrfs_run_delayed_refs+0xc4/0x38c fs/btrfs/extent-tree.c:2160
 btrfs_commit_transaction+0x218/0x2d30 fs/btrfs/transaction.c:2229
 del_balance_item fs/btrfs/volumes.c:3721 [inline]
 reset_balance_state+0x1cc/0x2c8 fs/btrfs/volumes.c:3785
 btrfs_balance+0xf1c/0xf58 fs/btrfs/volumes.c:4608
 btrfs_ioctl_balance+0x350/0x550 fs/btrfs/ioctl.c:3525
 btrfs_ioctl+0xb04/0xc3c fs/btrfs/ioctl.c:5276
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596