BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4388 Comm: kworker/u4:5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: btrfs-compressed-write btrfs_finish_compressed_write_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_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 folio_lruvec_lock_irqsave+0x104/0x250 mm/memcontrol.c:1348
 folio_lruvec_relock_irqsave include/linux/memcontrol.h:1647 [inline]
 folio_batch_move_lru+0x278/0x4c4 mm/swap.c:237
 lru_add_drain_cpu+0xc0/0x4e8 mm/swap.c:661
 lru_add_drain+0x8c/0x168 mm/swap.c:765
 __pagevec_release+0x5c/0xf8 mm/swap.c:1052
 pagevec_release include/linux/pagevec.h:71 [inline]
 folio_batch_release include/linux/pagevec.h:135 [inline]
 end_compressed_writeback+0x400/0x51c fs/btrfs/compression.c:247
 finish_compressed_bio_write+0xe8/0x3e8 fs/btrfs/compression.c:266
 btrfs_finish_compressed_write_work+0x20/0x30 fs/btrfs/compression.c:290
 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