BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4421 Comm: kworker/u4:8 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: xfs_iwalk-10138 xfs_pwork_work
Call trace:
 dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 kasan_populate_vmalloc_pte+0x74/0xe8 mm/kasan/shadow.c:278
 apply_to_pte_range mm/memory.c:2660 [inline]
 apply_to_pmd_range mm/memory.c:2704 [inline]
 apply_to_pud_range mm/memory.c:2740 [inline]
 apply_to_p4d_range mm/memory.c:2776 [inline]
 __apply_to_page_range+0x80c/0xbb4 mm/memory.c:2812
 apply_to_page_range+0x4c/0x64 mm/memory.c:2831
 kasan_populate_vmalloc+0x5c/0x6c mm/kasan/shadow.c:318
 alloc_vmap_area+0x15c8/0x1708 mm/vmalloc.c:1654
 new_vmap_block mm/vmalloc.c:1974 [inline]
 vb_alloc mm/vmalloc.c:2110 [inline]
 vm_map_ram+0x4a8/0x8b4 mm/vmalloc.c:2266
 _xfs_buf_map_pages+0x168/0x38c fs/xfs/xfs_buf.c:441
 xfs_buf_get_map+0xbfc/0x1984 fs/xfs/xfs_buf.c:719
 xfs_buf_read_map+0x94/0x9f8 fs/xfs/xfs_buf.c:811
 xfs_buf_readahead_map+0x6c/0x9c fs/xfs/xfs_buf.c:889
 xfs_buf_readahead fs/xfs/xfs_buf.h:262 [inline]
 xfs_btree_reada_bufs+0x124/0x1fc fs/xfs/libxfs/xfs_btree.c:926
 xfs_iwalk_ichunk_ra+0x1cc/0x358 fs/xfs/xfs_iwalk.c:114
 xfs_iwalk_ag+0x448/0x820 fs/xfs/xfs_iwalk.c:455
 xfs_iwalk_ag_work+0xfc/0x1a8 fs/xfs/xfs_iwalk.c:624
 xfs_pwork_work+0x80/0x1a0 fs/xfs/xfs_pwork.c:47
 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292
 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850