rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P4935 (detected by 1, t=10502 jiffies, g=10225, q=1112 ncpus=2) task:syz-executor state:R running task stack:0 pid:4935 ppid:1 flags:0x00000009 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 sched_show_task+0x438/0x570 kernel/sched/core.c:8942 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:261 [inline] print_other_cpu_stall+0x1ab8/0x22e0 kernel/rcu/tree_stall.h:606 check_cpu_stall kernel/rcu/tree_stall.h:778 [inline] rcu_pending kernel/rcu/tree.c:3891 [inline] rcu_sched_clock_irq+0x195c/0x1c54 kernel/rcu/tree.c:2394 update_process_times+0x15c/0x1f4 kernel/time/timer.c:1869 tick_sched_handle kernel/time/tick-sched.c:254 [inline] tick_sched_timer+0x340/0x4f8 kernel/time/tick-sched.c:1501 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x484/0xdc0 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x2c0/0xb64 kernel/time/hrtimer.c:1815 timer_handler drivers/clocksource/arm_arch_timer.c:655 [inline] arch_timer_handler_virt+0x74/0x88 drivers/clocksource/arm_arch_timer.c:666 handle_percpu_devid_irq+0x174/0x354 kernel/irq/chip.c:930 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq_desc kernel/irq/irqdesc.c:652 [inline] generic_handle_domain_irq+0x7c/0xc4 kernel/irq/irqdesc.c:708 __gic_handle_irq drivers/irqchip/irq-gic-v3.c:737 [inline] __gic_handle_irq_from_irqson drivers/irqchip/irq-gic-v3.c:788 [inline] gic_handle_irq+0x70/0x1e4 drivers/irqchip/irq-gic-v3.c:832 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:893 do_interrupt_handler+0xd4/0x138 arch/arm64/kernel/entry-common.c:274 __el1_irq arch/arm64/kernel/entry-common.c:471 [inline] el1_interrupt+0x34/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 lock_is_held_type+0x164/0x1a8 kernel/locking/lockdep.c:5710 lock_is_held include/linux/lockdep.h:283 [inline] xa_entry include/linux/xarray.h:1198 [inline] xas_find_marked+0x684/0xe84 lib/xarray.c:1368 xa_find+0x238/0x3c8 lib/xarray.c:2022 devlinks_xa_find_get+0xfc/0x2dc net/devlink/leftover.c:300 devlinks_xa_find_get_first net/devlink/leftover.c:328 [inline] devlink_nl_cmd_port_get_dumpit+0x108/0x504 net/devlink/leftover.c:1556 netlink_dump+0x4a4/0xac8 net/netlink/af_netlink.c:2232 __netlink_dump_start+0x470/0x680 net/netlink/af_netlink.c:2334 genl_family_rcv_msg_dumpit net/netlink/genetlink.c:714 [inline] genl_family_rcv_msg net/netlink/genetlink.c:830 [inline] genl_rcv_msg+0x7b4/0xc2c net/netlink/genetlink.c:850 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2507 genl_rcv+0x38/0x50 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1326 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1352 netlink_sendmsg+0x834/0xb18 net/netlink/af_netlink.c:1874 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x3b8/0x508 net/socket.c:2148 __do_sys_sendto net/socket.c:2160 [inline] __se_sys_sendto net/socket.c:2156 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2156 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 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