netdevsim netdevsim7 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 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: 11948 Comm: syz.7.2090 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 include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x54/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:351 [inline]
 new_inode_pseudo+0x9c/0x1cc fs/inode.c:1066
 new_inode+0x38/0x174 fs/inode.c:1091
 debugfs_get_inode fs/debugfs/inode.c:72 [inline]
 __debugfs_create_file+0x134/0x438 fs/debugfs/inode.c:432
 debugfs_create_file_unsafe+0x60/0x78 fs/debugfs/inode.c:528
 debugfs_create_mode_unsafe fs/debugfs/file.c:-1 [inline]
 debugfs_create_u32+0x88/0xa0 fs/debugfs/file.c:541
 nsim_bpf_init+0xf0/0x24c drivers/net/netdevsim/bpf.c:635
 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:311 [inline]
 nsim_create+0x280/0x364 drivers/net/netdevsim/netdev.c:365
 __nsim_dev_port_add+0x53c/0x8c8 drivers/net/netdevsim/dev.c:1396
 nsim_dev_port_add_all+0x4c/0x110 drivers/net/netdevsim/dev.c:1454
 nsim_dev_reload_create drivers/net/netdevsim/dev.c:1506 [inline]
 nsim_dev_reload_up+0x3f4/0x658 drivers/net/netdevsim/dev.c:988
 devlink_reload+0x254/0x584 net/devlink/leftover.c:4479
 devlink_nl_cmd_reload+0x918/0xae0 net/devlink/leftover.c:4593
 genl_family_rcv_msg_doit+0x204/0x308 net/netlink/genetlink.c:756
 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]
 genl_rcv_msg+0x44c/0x640 net/netlink/genetlink.c:850
 netlink_rcv_skb+0x218/0x3e8 net/netlink/af_netlink.c:2511
 genl_rcv+0x38/0x50 net/netlink/genetlink.c:861
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x60c/0x814 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x6f4/0x9c0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5c8/0x938 net/socket.c:2518
 ___sys_sendmsg net/socket.c:2572 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2601
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg net/socket.c:2608 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2608
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 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
netdevsim netdevsim7 eth0: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 eth1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 eth2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim7 eth3: set [1, 0] type 2 family 0 port 6081 - 0