BTRFS info (device loop5): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 1 PID: 5532 Comm: syz-executor Not tainted 6.1.132-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 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+0x1b88/0x7680 kernel/locking/lockdep.c:5049
 lock_acquire+0x26c/0x7cc kernel/locking/lockdep.c:5662
 seqcount_lockdep_reader_access include/linux/seqlock.h:102 [inline]
 read_mems_allowed_begin include/linux/cpuset.h:153 [inline]
 get_any_partial mm/slub.c:2287 [inline]
 get_partial mm/slub.c:2329 [inline]
 ___slab_alloc+0x830/0xee0 mm/slub.c:3175
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x2cc/0x37c mm/slub.c:3422
 btrfs_add_delayed_tree_ref+0x1c8/0xe58 fs/btrfs/delayed-ref.c:930
 btrfs_free_tree_block+0x30c/0xb50 fs/btrfs/extent-tree.c:3283
 btrfs_force_cow_block+0xcc8/0x1b48 fs/btrfs/ctree.c:520
 btrfs_cow_block+0x2e8/0x71c fs/btrfs/ctree.c:616
 btrfs_search_slot+0xb64/0x2928 fs/btrfs/ctree.c:2080
 btrfs_update_root+0xec/0xad0 fs/btrfs/root-tree.c:132
 update_cowonly_root fs/btrfs/transaction.c:1254 [inline]
 commit_cowonly_roots+0x4e4/0x740 fs/btrfs/transaction.c:1321
 btrfs_commit_transaction+0x1228/0x2cd4 fs/btrfs/transaction.c:2427
 btrfs_commit_super+0xb4/0xd0 fs/btrfs/disk-io.c:4542
 close_ctree+0x3c4/0xb10 fs/btrfs/disk-io.c:4716
 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:397
 generic_shutdown_super+0x130/0x328 fs/super.c:501
 kill_anon_super+0x4c/0x74 fs/super.c:1128
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2449
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2080/0x2cb8 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585