BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 UID: 0 PID: 27326 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
Call trace:
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7c/0xb0 lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:3753 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0x14bc/0x1a5c kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x3ac/0x440 kernel/locking/lockdep.c:5825
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline]
 _raw_spin_lock_irqsave+0x58/0x80 kernel/locking/spinlock.c:166
 atomic_notifier_chain_unregister+0x1c/0x58 kernel/notifier.c:192
 unregister_fib_notifier+0x2c/0x40 net/core/fib_notifier.c:124
 nsim_fib_destroy+0x60/0x180 drivers/net/netdevsim/fib.c:1656
 nsim_dev_reload_destroy+0x118/0x3a4 drivers/net/netdevsim/dev.c:1789
 nsim_drv_remove+0x50/0x1b0 drivers/net/netdevsim/dev.c:1800
 nsim_bus_remove+0x10/0x20 drivers/net/netdevsim/bus.c:427
 device_remove+0xb0/0x14c drivers/base/dd.c:619
 __device_release_driver drivers/base/dd.c:1352 [inline]
 device_release_driver_internal+0x310/0x47c drivers/base/dd.c:1375
 device_release_driver+0x18/0x24 drivers/base/dd.c:1398
 bus_remove_device+0x220/0x468 drivers/base/bus.c:657
 device_del+0x2d8/0x7c0 drivers/base/core.c:3895
 device_unregister+0x20/0xcc drivers/base/core.c:3936
 nsim_bus_dev_del drivers/net/netdevsim/bus.c:491 [inline]
 del_device_store+0x284/0x3ac drivers/net/netdevsim/bus.c:244
 bus_attr_store+0x60/0xa0 drivers/base/bus.c:172
 sysfs_kf_write+0xc4/0x10c fs/sysfs/file.c:142
 kernfs_fop_write_iter+0x2a4/0x460 fs/kernfs/file.c:352
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x4bc/0xba4 fs/read_write.c:688
 ksys_write+0xf0/0x1e0 fs/read_write.c:740
 __do_sys_write fs/read_write.c:751 [inline]
 __se_sys_write fs/read_write.c:748 [inline]
 __arm64_sys_write+0x6c/0xa0 fs/read_write.c:748
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x74/0x240 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:140
 el0_svc+0x58/0x2a4 arch/arm64/kernel/entry-common.c:723
 el0t_64_sync_handler+0xa0/0xe4 arch/arm64/kernel/entry-common.c:742
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:594