BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! turning off the locking correctness validator. CPU: 0 UID: 0 PID: 10137 Comm: syz-executor Not tainted 6.13.0-rc2-syzkaller-g146ff2c261f3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:484 (C) __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 lookup_chain_cache_add kernel/locking/lockdep.c:3851 [inline] validate_chain kernel/locking/lockdep.c:3872 [inline] __lock_acquire+0x2070/0x7904 kernel/locking/lockdep.c:5226 lock_acquire+0x23c/0x724 kernel/locking/lockdep.c:5849 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x5c/0x7c kernel/locking/spinlock.c:162 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline] try_to_wake_up+0xdc/0x11d4 kernel/sched/core.c:4205 default_wake_function+0x4c/0x60 kernel/sched/core.c:7090 ep_autoremove_wake_function+0x4c/0x120 fs/eventpoll.c:1973 __wake_up_common kernel/sched/wait.c:89 [inline] __wake_up_common_lock kernel/sched/wait.c:106 [inline] __wake_up_sync_key kernel/sched/wait.c:173 [inline] __wake_up_sync+0xf4/0x190 kernel/sched/wait.c:205 ep_poll_callback+0x698/0xa2c fs/eventpoll.c:1406 __wake_up_common kernel/sched/wait.c:89 [inline] __wake_up_common_lock kernel/sched/wait.c:106 [inline] __wake_up_sync_key+0xf8/0x194 kernel/sched/wait.c:173 sock_def_readable+0x200/0x5fc net/core/sock.c:3453 __netlink_sendskb net/netlink/af_netlink.c:1268 [inline] netlink_broadcast_deliver net/netlink/af_netlink.c:1398 [inline] do_one_broadcast net/netlink/af_netlink.c:1485 [inline] netlink_broadcast_filtered+0xb5c/0x10ec net/netlink/af_netlink.c:1530 netlink_broadcast+0x50/0x68 net/netlink/af_netlink.c:1554 uevent_net_broadcast_tagged lib/kobject_uevent.c:373 [inline] kobject_uevent_net_broadcast+0x4b0/0x548 lib/kobject_uevent.c:413 kobject_uevent_env+0x530/0x894 lib/kobject_uevent.c:608 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:656 __kobject_del+0xd8/0x2d4 lib/kobject.c:601 kobject_cleanup lib/kobject.c:680 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2c0/0x41c lib/kobject.c:737 net_rx_queue_update_kobjects+0x4c4/0x53c net/core/net-sysfs.c:1178 remove_queue_kobjects net/core/net-sysfs.c:1953 [inline] netdev_unregister_kobject+0xf4/0x208 net/core/net-sysfs.c:2107 unregister_netdevice_many_notify+0x15fc/0x1c6c net/core/dev.c:11562 unregister_netdevice_many net/core/dev.c:11590 [inline] unregister_netdevice_queue+0x2d8/0x324 net/core/dev.c:11462 unregister_netdevice include/linux/netdevice.h:3192 [inline] bpq_free_device+0x144/0x194 drivers/net/hamradio/bpqether.c:522 bpq_device_event+0x370/0x820 drivers/net/hamradio/bpqether.c:552 notifier_call_chain+0x1c4/0x550 kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:1996 [inline] call_netdevice_notifiers_extack net/core/dev.c:2034 [inline] call_netdevice_notifiers net/core/dev.c:2048 [inline] unregister_netdevice_many_notify+0xde0/0x1c6c net/core/dev.c:11526 unregister_netdevice_many net/core/dev.c:11590 [inline] unregister_netdevice_queue+0x2d8/0x324 net/core/dev.c:11462 unregister_netdevice include/linux/netdevice.h:3192 [inline] nsim_destroy+0x15c/0x50c drivers/net/netdevsim/netdev.c:821 __nsim_dev_port_del+0x140/0x1a0 drivers/net/netdevsim/dev.c:1428 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1440 [inline] nsim_dev_reload_destroy+0x240/0x43c drivers/net/netdevsim/dev.c:1661 nsim_drv_remove+0x5c/0x154 drivers/net/netdevsim/dev.c:1676 nsim_bus_remove+0x20/0x30 drivers/net/netdevsim/bus.c:398 device_remove drivers/base/dd.c:567 [inline] __device_release_driver drivers/base/dd.c:1273 [inline] device_release_driver_internal+0x3e4/0x698 drivers/base/dd.c:1296 device_release_driver+0x28/0x38 drivers/base/dd.c:1319 bus_remove_device+0x314/0x3b4 drivers/base/bus.c:576 device_del+0x480/0x828 drivers/base/core.c:3854 device_unregister+0x2c/0xcc drivers/base/core.c:3895 nsim_bus_dev_del drivers/net/netdevsim/bus.c:462 [inline] del_device_store+0x2c4/0x39c drivers/net/netdevsim/bus.c:226 bus_attr_store+0x80/0xa4 drivers/base/bus.c:172 sysfs_kf_write+0x200/0x280 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x334/0x48c fs/kernfs/file.c:334 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:679 ksys_write+0x15c/0x26c fs/read_write.c:731 __do_sys_write fs/read_write.c:742 [inline] __se_sys_write fs/read_write.c:739 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:739 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 netdevsim netdevsim5 netdevsim0: renamed from eth0 netdevsim netdevsim5 netdevsim1: renamed from eth1 netdevsim netdevsim5 netdevsim2: renamed from eth2 netdevsim netdevsim5 netdevsim3: renamed from eth3 8021q: adding VLAN 0 to HW filter on device bond0 8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device batadv0 veth0_vlan: entered promiscuous mode veth1_vlan: entered promiscuous mode veth0_macvtap: entered promiscuous mode veth1_macvtap: entered promiscuous mode batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: batadv0: Interface activated: batadv_slave_0 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: batadv0: Interface activated: batadv_slave_1 netdevsim netdevsim5 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim5 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ieee80211 phy27: Selected rate control algorithm 'minstrel_ht' ieee80211 phy28: Selected rate control algorithm 'minstrel_ht'