INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 UID: 0 PID: 14987 Comm: syz.4.1844 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 assign_lock_key+0x133/0x150 kernel/locking/lockdep.c:984 register_lock_class+0xff/0x320 kernel/locking/lockdep.c:1299 __lock_acquire+0xae/0x2cf0 kernel/locking/lockdep.c:5112 lock_acquire+0x117/0x340 kernel/locking/lockdep.c:5868 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162 ocfs2_mark_lockres_freeing+0x125/0x580 fs/ocfs2/dlmglue.c:3513 ocfs2_simple_drop_lockres fs/ocfs2/dlmglue.c:3569 [inline] ocfs2_drop_osb_locks fs/ocfs2/dlmglue.c:3577 [inline] ocfs2_dlm_shutdown+0x3a/0x240 fs/ocfs2/dlmglue.c:3387 ocfs2_dismount_volume+0x452/0x8b0 fs/ocfs2/super.c:1866 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1722 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x6c5/0x2310 kernel/exit.c:971 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5a681c2005 Code: Unable to access opcode bytes at 0x7f5a681c1fdb. RSP: 002b:00007f5a68f6af80 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: fffffffffffffdfc RBX: 00007f5a683e6090 RCX: 00007f5a681c2005 RDX: 00007f5a68f6afc0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f5a68213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f5a683e6128 R14: 00007f5a683e6090 R15: 00007ffc90b9b728 ocfs2: Unmounting device (7,4) on (node local)