BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9089 Comm: syz.1.305 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 lookup_chain_cache_add kernel/locking/lockdep.c:3816 [inline]
 validate_chain kernel/locking/lockdep.c:3837 [inline]
 __lock_acquire+0x1c58/0x763c kernel/locking/lockdep.c:5137
 lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5754
 local_lock_acquire+0x3c/0x98 include/linux/local_lock_internal.h:29
 ___slab_alloc+0x2cc/0xf38 mm/slub.c:3544
 __slab_alloc+0x74/0xd0 mm/slub.c:3757
 __slab_alloc_node mm/slub.c:3810 [inline]
 slab_alloc_node mm/slub.c:3990 [inline]
 kmem_cache_alloc_noprof+0x26c/0x350 mm/slub.c:4009
 add_delayed_ref+0xec/0x18ac fs/btrfs/delayed-ref.c:1039
 btrfs_add_delayed_tree_ref+0x9c/0x110 fs/btrfs/delayed-ref.c:1102
 btrfs_free_tree_block+0x320/0xc00 fs/btrfs/extent-tree.c:3451
 btrfs_force_cow_block+0xd08/0x1a58 fs/btrfs/ctree.c:651
 btrfs_cow_block+0x318/0xa28 fs/btrfs/ctree.c:746
 btrfs_search_slot+0xba0/0x2a08
 btrfs_insert_empty_items+0xa4/0x17c fs/btrfs/ctree.c:4295
 btrfs_insert_empty_item fs/btrfs/ctree.h:650 [inline]
 btrfs_insert_orphan_item+0x1a4/0x2b0 fs/btrfs/orphan.c:24
 btrfs_orphan_add+0x70/0x1b4 fs/btrfs/inode.c:3496
 btrfs_unlink+0x208/0x2d8 fs/btrfs/inode.c:4274
 vfs_unlink+0x2f0/0x534 fs/namei.c:4396
 do_unlinkat+0x4d0/0x700 fs/namei.c:4460
 __do_sys_unlinkat fs/namei.c:4503 [inline]
 __se_sys_unlinkat fs/namei.c:4496 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4496
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598