BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9200 Comm: syz.6.373 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
 seqcount_lockdep_reader_access+0x58/0xc8 include/linux/seqlock.h:72
 read_seqbegin include/linux/seqlock.h:836 [inline]
 zone_span_seqbegin include/linux/memory_hotplug.h:87 [inline]
 page_outside_zone_boundaries mm/page_alloc.c:586 [inline]
 bad_range+0x94/0x26c mm/page_alloc.c:605
 rmqueue mm/page_alloc.c:3388 [inline]
 get_page_from_freelist+0x2478/0x2624 mm/page_alloc.c:3912
 __alloc_frozen_pages_noprof+0x17c/0x318 mm/page_alloc.c:5210
 alloc_pages_mpol+0x1e4/0x460 mm/mempolicy.c:2486
 alloc_frozen_pages_noprof+0xe0/0x210 mm/mempolicy.c:2557
 alloc_slab_page mm/slub.c:3075 [inline]
 allocate_slab+0xa0/0x424 mm/slub.c:3248
 new_slab mm/slub.c:3302 [inline]
 ___slab_alloc+0x9b0/0x127c mm/slub.c:4656
 __slab_alloc+0x80/0x12c mm/slub.c:4779
 __slab_alloc_node mm/slub.c:4855 [inline]
 slab_alloc_node mm/slub.c:5251 [inline]
 kmem_cache_alloc_noprof+0x3ec/0x680 mm/slub.c:5270
 add_delayed_ref+0xf0/0x1a30 fs/btrfs/delayed-ref.c:1017
 btrfs_add_delayed_tree_ref+0x94/0x148 fs/btrfs/delayed-ref.c:1117
 btrfs_free_tree_block+0x290/0x9a8 fs/btrfs/extent-tree.c:3456
 btrfs_force_cow_block+0xc10/0x2058 fs/btrfs/ctree.c:566
 btrfs_cow_block+0x328/0x940 fs/btrfs/ctree.c:708
 btrfs_search_slot+0x96c/0x2228 fs/btrfs/ctree.c:2130
 lookup_inline_extent_backref+0x2c4/0x143c fs/btrfs/extent-tree.c:806
 lookup_extent_backref fs/btrfs/extent-tree.c:1058 [inline]
 __btrfs_free_extent+0x374/0x39bc fs/btrfs/extent-tree.c:3129
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1750 [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+0xb98/0x333c fs/btrfs/extent-tree.c:2048
 btrfs_run_delayed_refs+0xc4/0x38c fs/btrfs/extent-tree.c:2160
 btrfs_commit_transaction+0x1054/0x2d30 fs/btrfs/transaction.c:2448
 create_snapshot fs/btrfs/ioctl.c:779 [inline]
 btrfs_mksubvol+0x94c/0xea0 fs/btrfs/ioctl.c:926
 btrfs_mksnapshot+0xb4/0x140 fs/btrfs/ioctl.c:968
 __btrfs_ioctl_snap_create+0x404/0x5b8 fs/btrfs/ioctl.c:1232
 btrfs_ioctl_snap_create+0x138/0x178 fs/btrfs/ioctl.c:1259
 btrfs_ioctl+0x4b0/0xc3c fs/btrfs/ioctl.c:-1
 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