BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 9382 Comm: segctord 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
 down_write+0x50/0xc0 kernel/locking/rwsem.c:1590
 nilfs_bmap_insert+0x98/0x350 fs/nilfs2/bmap.c:148
 nilfs_mdt_insert_new_block fs/nilfs2/mdt.c:45 [inline]
 nilfs_mdt_create_block fs/nilfs2/mdt.c:95 [inline]
 nilfs_mdt_get_block+0x29c/0xeb0 fs/nilfs2/mdt.c:258
 nilfs_palloc_get_block+0x17c/0x2dc fs/nilfs2/alloc.c:239
 nilfs_palloc_get_entry_block+0x98/0xb0 fs/nilfs2/alloc.c:355
 nilfs_dat_prepare_entry fs/nilfs2/dat.c:45 [inline]
 nilfs_dat_prepare_alloc fs/nilfs2/dat.c:82 [inline]
 nilfs_dat_prepare_update+0xcc/0x2d8 fs/nilfs2/dat.c:250
 nilfs_direct_propagate+0x168/0x2fc fs/nilfs2/direct.c:282
 nilfs_bmap_propagate+0x74/0x124 fs/nilfs2/bmap.c:329
 nilfs_collect_file_data+0x54/0xe8 fs/nilfs2/segment.c:589
 nilfs_segctor_apply_buffers+0x170/0x31c fs/nilfs2/segment.c:1010
 nilfs_segctor_scan_file+0x5a4/0xc1c fs/nilfs2/segment.c:1059
 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1267 [inline]
 nilfs_segctor_collect fs/nilfs2/segment.c:1547 [inline]
 nilfs_segctor_do_construct+0x18a0/0x6398 fs/nilfs2/segment.c:2122
 nilfs_segctor_construct+0x134/0x540 fs/nilfs2/segment.c:2462
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2570 [inline]
 nilfs_segctor_thread+0x444/0xac8 fs/nilfs2/segment.c:2684
 kthread+0x5fc/0x75c kernel/kthread.c:463
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844