netdevsim netdevsim9 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 1 PID: 4611 Comm: kworker/u4:10 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
Workqueue: netns cleanup_net
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
 fs_reclaim_acquire+0xc4/0x124 mm/page_alloc.c:4765
 might_alloc include/linux/sched/mm.h:271 [inline]
 slab_pre_alloc_hook+0x44/0x318 mm/slab.h:710
 slab_alloc_node mm/slub.c:3279 [inline]
 slab_alloc mm/slub.c:3367 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3374 [inline]
 kmem_cache_alloc_lru+0x60/0x280 mm/slub.c:3390
 __d_alloc+0x44/0x684 fs/dcache.c:1774
 d_alloc fs/dcache.c:1854 [inline]
 d_alloc_parallel+0x7c/0x113c fs/dcache.c:2647
 __lookup_slow+0x114/0x38c fs/namei.c:1683
 lookup_one_len+0x17c/0x298 fs/namei.c:2748
 start_creating+0x198/0x2dc fs/debugfs/inode.c:377
 debugfs_create_dir+0x30/0x3f4 fs/debugfs/inode.c:592
 nsim_fib_debugfs_init drivers/net/netdevsim/fib.c:1523 [inline]
 nsim_fib_create+0x108/0x928 drivers/net/netdevsim/fib.c:1566
 nsim_dev_reload_create drivers/net/netdevsim/dev.c:1488 [inline]
 nsim_dev_reload_up+0x338/0x658 drivers/net/netdevsim/dev.c:988
 devlink_reload+0x254/0x584 net/devlink/leftover.c:4479
 devlink_pernet_pre_exit+0x118/0x2b0 net/devlink/leftover.c:12503
 ops_pre_exit_list net/core/net_namespace.c:162 [inline]
 cleanup_net+0x47c/0xa84 net/core/net_namespace.c:620
 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
device hsr_slave_0 left promiscuous mode
device hsr_slave_1 left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
device veth1_macvtap left promiscuous mode
device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves