rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10819
rcu: 	(detected by 0, t=10502 jiffies, g=31469, q=2418 ncpus=2)
task:syz.0.1270      state:R  running task     stack:23968 pid:10819 tgid:10818 ppid:5831   task_flags:0x400140 flags:0x00080013
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630
 print_other_cpu_stall+0xf7a/0x1340
 rcu_sched_clock_irq+0xac1/0x1280
 update_process_times+0x23c/0x2f0
 tick_nohz_handler+0x3e9/0x710
 __hrtimer_run_queues+0x4d0/0xc30
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x102/0x3e0
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:ndisc_send_skb+0x82c/0x1510
Code: b0 f7 4d 85 ff 74 30 e8 b2 d6 b0 f7 49 81 c7 cc 06 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 53 09 00 00 45 8b 2f <41> c1 e5 14 41 81 cd 00 00 00 60 eb 0b e8 82 d6 b0 f7 41 bd 00 00
RSP: 0018:ffffc90000007980 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff888111871d40
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90000007b50 R08: ffffffff8a10d574 R09: ffffffff8df41a20
R10: ffffc90000007900 R11: fffff52000000f22 R12: 0000000000000020
R13: 0000000000000000 R14: ffff888173c45d50 R15: ffff88816c9c36cc
 addrconf_rs_timer+0x369/0x6a0
 call_timer_fn+0x16e/0x590
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x27d/0x850
 do_softirq+0xec/0x180
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0
 bpf_test_run_xdp_live+0x1880/0x1b20
 bpf_prog_test_run_xdp+0x7c0/0x10e0
 bpf_prog_test_run+0x2c7/0x340
 __sys_bpf+0x5ee/0x8a0
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcadf78f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcae06b0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fcadf9e5fa0 RCX: 00007fcadf78f7c9
RDX: 0000000000000050 RSI: 0000200000000600 RDI: 000000000000000a
RBP: 00007fcadf7f297f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcadf9e6038 R14: 00007fcadf9e5fa0 R15: 00007ffcfbc6a118
 </TASK>
sched: DL replenish lagged too much
