EXT4-fs (loop1): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9075 Comm: syz.1.388 Not tainted 6.17.0-rc1-syzkaller-g8f5ae30d69d7 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
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+0x14c/0x2e0 kernel/locking/lockdep.c:5868
 seqcount_lockdep_reader_access+0x6c/0xf8 include/linux/seqlock.h:72
 read_seqbegin include/linux/seqlock.h:836 [inline]
 d_alloc_parallel+0x2e0/0x1108 fs/dcache.c:2565
 __lookup_slow+0x104/0x378 fs/namei.c:1793
 lookup_noperm+0x108/0x21c fs/namei.c:2954
 simple_start_creating+0xe4/0x1bc fs/libfs.c:2303
 start_creating+0x128/0x198 fs/debugfs/inode.c:387
 debugfs_create_dir+0x30/0x3c8 fs/debugfs/inode.c:571
 bdi_debug_register mm/backing-dev.c:235 [inline]
 bdi_register_va+0x27c/0x7e4 mm/backing-dev.c:1101
 super_setup_bdi_name+0xec/0x1f0 fs/super.c:1874
 super_setup_bdi+0x98/0xd8 fs/super.c:1896
 v9fs_fill_super fs/9p/vfs_super.c:75 [inline]
 v9fs_mount+0x344/0x910 fs/9p/vfs_super.c:133
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:666
 vfs_get_tree+0x90/0x28c fs/super.c:1815
 do_new_mount+0x278/0x7f4 fs/namespace.c:3805
 path_mount+0x5b4/0xde0 fs/namespace.c:4120
 do_mount fs/namespace.c:4133 [inline]
 __do_sys_mount fs/namespace.c:4344 [inline]
 __se_sys_mount fs/namespace.c:4321 [inline]
 __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4321
 __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+0x58/0x180 arch/arm64/kernel/entry-common.c:879
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596