BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
turning off the locking correctness validator.
CPU: 0 PID: 6777 Comm: syz-executor Not tainted 6.1.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2025
Call trace:
 dump_backtrace+0x1c8/0x1f4 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+0xf8/0x160 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+0x1b40/0x6544 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x644 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162
 get_partial_node+0x44/0x3b8 mm/slub.c:2210
 get_partial mm/slub.c:2325 [inline]
 ___slab_alloc+0x680/0xe8c mm/slub.c:3175
 __slab_alloc+0x74/0xd0 mm/slub.c:3279
 slab_alloc_node mm/slub.c:3364 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc_lru+0x220/0x298 mm/slub.c:3429
 __d_alloc+0x44/0x684 fs/dcache.c:1774
 d_alloc fs/dcache.c:1854 [inline]
 d_alloc_parallel+0x80/0x10e4 fs/dcache.c:2645
 __lookup_slow+0x104/0x370 fs/namei.c:1675
 lookup_one_len+0x178/0x28c fs/namei.c:2740
 start_creating+0x19c/0x2e0 fs/debugfs/inode.c:377
 __debugfs_create_file+0x78/0x438 fs/debugfs/inode.c:422
 debugfs_create_file_unsafe+0x60/0x78 fs/debugfs/inode.c:528
 debugfs_create_mode_unsafe fs/debugfs/file.c:-1 [inline]
 debugfs_create_bool+0x88/0xa0 fs/debugfs/file.c:871
 nsim_bpf_init+0x11c/0x24c drivers/net/netdevsim/bpf.c:633
 nsim_init_netdevsim drivers/net/netdevsim/netdev.c:311 [inline]
 nsim_create+0x280/0x364 drivers/net/netdevsim/netdev.c:365
 __nsim_dev_port_add+0x510/0x898 drivers/net/netdevsim/dev.c:1396
 nsim_dev_port_add_all+0x4c/0x110 drivers/net/netdevsim/dev.c:1454
 nsim_drv_probe+0x6b0/0x930 drivers/net/netdevsim/dev.c:1608
 nsim_bus_probe+0x20/0x30 drivers/net/netdevsim/bus.c:239
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x39c/0xae0 drivers/base/dd.c:639
 __driver_probe_device+0x180/0x314 drivers/base/dd.c:785
 driver_probe_device+0x78/0x330 drivers/base/dd.c:815
 __device_attach_driver+0x290/0x4e0 drivers/base/dd.c:943
 bus_for_each_drv+0x150/0x1d8 drivers/base/bus.c:429
 __device_attach+0x2a8/0x3d4 drivers/base/dd.c:1015
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1064
 bus_probe_device+0xbc/0x1c4 drivers/base/bus.c:489
 device_add+0xb04/0xf94 drivers/base/core.c:3697
 device_register+0x28/0x38 drivers/base/core.c:3779
 nsim_bus_dev_new drivers/net/netdevsim/bus.c:290 [inline]
 new_device_store+0x2c0/0x4f4 drivers/net/netdevsim/bus.c:167
 bus_attr_store+0x80/0xa4 drivers/base/bus.c:124
 sysfs_kf_write+0x1f8/0x278 fs/sysfs/file.c:136
 kernfs_fop_write_iter+0x320/0x478 fs/kernfs/file.c:334
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ac/0x7c4 fs/read_write.c:584
 ksys_write+0x120/0x210 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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 netdevsim9 netdevsim0: renamed from eth0
netdevsim netdevsim9 netdevsim1: renamed from eth1
netdevsim netdevsim9 netdevsim2: renamed from eth2
netdevsim netdevsim9 netdevsim3: renamed from eth3
8021q: adding VLAN 0 to HW filter on device bond0
8021q: adding VLAN 0 to HW filter on device team0
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
8021q: adding VLAN 0 to HW filter on device batadv0
device veth0_vlan entered promiscuous mode
device veth1_vlan entered promiscuous mode
device veth0_macvtap entered promiscuous mode
device 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 netdevsim9 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
netdevsim netdevsim9 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
ieee80211 phy21: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy22: Selected rate control algorithm 'minstrel_ht'