UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 8432 Comm: syz.4.368 Not tainted 6.13.0-rc2-syzkaller-g146ff2c261f3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 lookup_chain_cache_add kernel/locking/lockdep.c:3851 [inline]
 validate_chain kernel/locking/lockdep.c:3872 [inline]
 __lock_acquire+0x2070/0x7904 kernel/locking/lockdep.c:5226
 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849
 __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+0x9c/0x174 fs/btrfs/extent_io.c:2746
 alloc_extent_buffer+0x1458/0x1d58 fs/btrfs/extent_io.c:3143
 btrfs_find_create_tree_block+0x3c/0x50 fs/btrfs/disk-io.c:614
 btrfs_init_new_buffer fs/btrfs/extent-tree.c:5019 [inline]
 btrfs_alloc_tree_block+0x210/0x10c8 fs/btrfs/extent-tree.c:5132
 btrfs_force_cow_block+0x428/0x19d4 fs/btrfs/ctree.c:573
 btrfs_cow_block+0x33c/0xad4 fs/btrfs/ctree.c:754
 btrfs_search_slot+0xa74/0x272c fs/btrfs/ctree.c:2156
 btrfs_search_prev_slot fs/btrfs/free-space-tree.c:140 [inline]
 add_free_space_extent fs/btrfs/free-space-tree.c:950 [inline]
 __add_to_free_space_tree+0x7e0/0x1150 fs/btrfs/free-space-tree.c:1021
 add_to_free_space_tree+0x120/0x2c0 fs/btrfs/free-space-tree.c:1050
 do_free_extent_accounting fs/btrfs/extent-tree.c:2968 [inline]
 __btrfs_free_extent+0x14fc/0x31f8 fs/btrfs/extent-tree.c:3338
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1760 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1786 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:2007 [inline]
 __btrfs_run_delayed_refs+0xc44/0x3cbc fs/btrfs/extent-tree.c:2077
 btrfs_run_delayed_refs+0xc4/0x2bc fs/btrfs/extent-tree.c:2189
 btrfs_commit_transaction+0x220/0x2ba4 fs/btrfs/transaction.c:2195
 create_snapshot+0x58c/0x83c fs/btrfs/ioctl.c:875
 btrfs_mksubvol+0x4f8/0x600 fs/btrfs/ioctl.c:1029
 btrfs_mksnapshot+0xc4/0x154 fs/btrfs/ioctl.c:1073
 __btrfs_ioctl_snap_create+0x314/0x3f4 fs/btrfs/ioctl.c:1337
 btrfs_ioctl_snap_create_v2+0x1b0/0x30c fs/btrfs/ioctl.c:1418
 btrfs_ioctl+0x9c8/0xb04
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __arm64_sys_ioctl+0x14c/0x1cc fs/ioctl.c:892
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600