BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 UID: 0 PID: 14 Comm: kworker/u8:1 Not tainted 6.15.0-rc7-syzkaller-g187899f4124a #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: btrfs-delalloc btrfs_work_helper Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:466 (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:3856 [inline] validate_chain kernel/locking/lockdep.c:3877 [inline] __lock_acquire+0xf50/0x3058 kernel/locking/lockdep.c:5235 lock_acquire+0x14c/0x2e0 kernel/locking/lockdep.c:5866 do_write_seqcount_begin_nested include/linux/seqlock.h:477 [inline] do_write_seqcount_begin include/linux/seqlock.h:503 [inline] psi_account_irqtime+0x3d8/0x85c kernel/sched/psi.c:1026 __schedule+0x89c/0x28d4 kernel/sched/core.c:6760 preempt_schedule_common+0xe0/0x194 kernel/sched/core.c:6947 preempt_schedule+0x60/0x80 kernel/sched/core.c:6971 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x94/0x98 kernel/locking/spinlock.c:194 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] folio_wake_bit+0x164/0x1e4 mm/filemap.c:1203 folio_unlock+0xbc/0x120 mm/filemap.c:1500 btrfs_folio_end_lock+0x108/0x18c fs/btrfs/subpage.c:290 process_one_folio fs/btrfs/extent_io.c:193 [inline] __process_folios_contig+0x2f4/0x418 fs/btrfs/extent_io.c:215 extent_clear_unlock_delalloc+0x90/0xac fs/btrfs/extent_io.c:408 cow_file_range_inline+0x2f4/0x338 fs/btrfs/inode.c:715 cow_file_range+0x324/0xc68 fs/btrfs/inode.c:1310 run_delalloc_cow+0x88/0x11c fs/btrfs/inode.c:1702 submit_uncompressed_range+0x108/0x310 fs/btrfs/inode.c:1083 submit_one_async_extent fs/btrfs/inode.c:1135 [inline] submit_compressed_extents+0x620/0x1280 fs/btrfs/inode.c:1591 run_ordered_work fs/btrfs/async-thread.c:244 [inline] btrfs_work_helper+0x52c/0xca8 fs/btrfs/async-thread.c:323 process_one_work+0x7e8/0x156c kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3400 kthread+0x5fc/0x75c kernel/kthread.c:464 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847