BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 7318 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
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
 try_to_wake_up+0x60/0xc68 kernel/sched/core.c:4112
 wake_up_process+0x18/0x24 kernel/sched/core.c:4362
 swake_up_locked kernel/sched/swait.c:29 [inline]
 swake_up_one+0x70/0x134 kernel/sched/swait.c:52
 swake_up_one_online+0xe8/0x1e0 kernel/rcu/tree.c:1082
 rcu_gp_kthread_wake kernel/rcu/tree.c:1110 [inline]
 rcu_report_qs_rsp+0x234/0x36c kernel/rcu/tree.c:1931
 rcu_report_unblock_qs_rnp kernel/rcu/tree.c:2035 [inline]
 rcu_preempt_deferred_qs_irqrestore+0x988/0xd3c kernel/rcu/tree_plugin.h:557
 rcu_read_unlock_special+0xac/0x478 kernel/rcu/tree_plugin.h:684
 __rcu_read_unlock+0xa4/0x108 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 find_lock_entries+0x720/0x82c mm/filemap.c:2146
 shmem_undo_range+0x210/0x1658 mm/shmem.c:925
 shmem_truncate_range mm/shmem.c:1062 [inline]
 shmem_evict_inode+0x214/0x8a8 mm/shmem.c:1171
 evict+0x3e0/0x828 fs/inode.c:705
 iput_final fs/inode.c:1834 [inline]
 iput+0x754/0x7e4 fs/inode.c:1860
 do_unlinkat+0x36c/0x500 fs/namei.c:4405
 __do_sys_unlinkat fs/namei.c:4441 [inline]
 __se_sys_unlinkat fs/namei.c:4434 [inline]
 __arm64_sys_unlinkat+0xe0/0xfc fs/namei.c:4434
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
EXT4-fs (loop1): unmounting filesystem.