rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P12828
rcu: 	(detected by 1, t=10502 jiffies, g=47485, q=2066 ncpus=2)
task:syz.0.1932      state:R  running task     stack:23104 pid:12828 tgid:12827 ppid:11649  task_flags:0x400140 flags:0x0000400e
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630
 print_other_cpu_stall+0xf7a/0x1340
 rcu_sched_clock_irq+0xa47/0x11b0
 update_process_times+0x23c/0x2f0
 tick_nohz_handler+0x39a/0x520
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kmem_cache_alloc_node_noprof+0x34/0x3c0
Code: 55 41 54 53 48 83 ec 28 89 d5 41 89 f6 49 89 ff 65 48 8b 05 5e 7e 88 10 48 89 44 24 20 48 8b 44 24 58 48 89 44 24 10 8b 47 1c <48> 89 04 24 8b 1d d2 5e 8b 0d 21 f3 89 df e8 29 9b fd ff 89 df e8
RSP: 0018:ffffc900001e0518 EFLAGS: 00000296
RAX: 00000000000000f0 RBX: 0000000000000000 RCX: ffff888021118000
RDX: 00000000ffffffff RSI: 0000000000000820 RDI: ffff888100a86a00
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff89686629
R10: dffffc0000000000 R11: fffffbfff1f47527 R12: 0000000000000820
R13: 0000000000000820 R14: 0000000000000820 R15: ffff888100a86a00
 __alloc_skb+0x112/0x2d0
 __neigh_notify+0x15c/0x310
 neigh_cleanup_and_release+0xb0/0x290
 neigh_remove_one+0x46d/0x4c0
 ___neigh_create+0x485/0x2260
 ip6_finish_output2+0xb4d/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 df c4 eb 09 e8 ea 41 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90004ef6cb8 EFLAGS: 00000286
RAX: b95134c5adc75000 RBX: 0000000000000000 RCX: b95134c5adc75000
RDX: 0000000000000000 RSI: ffffffff8d9ba191 RDI: ffffffff8be33e80
RBP: ffffc90004ef6d10 R08: ffffffff8fa3a937 R09: 1ffffffff1f47526
R10: dffffc0000000000 R11: fffffbfff1f47527 R12: ffff888021118000
R13: dffffc0000000000 R14: ffff8881006f5640 R15: ffff88813663ab58
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:is_bpf_text_address+0xfa/0x2b0
Code: 8b 25 4a 5d 12 0c 44 89 e3 83 e3 01 4c 8d 3c dd f0 13 e1 8d 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 e6 8b 54 00 <4d> 8b 3f 4d 85 ff 0f 84 c1 00 00 00 4c 89 24 24 c1 e3 03 8d 2c 5b
RSP: 0018:ffffc90004ef70b0 EFLAGS: 00000246
RAX: 1ffffffff1bc227e RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90003223000 RSI: 0000000000008cf2 RDI: 0000000000008cf3
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff81ceb5c6
R10: ffffc90004ef6d08 R11: fffff520009deda3 R12: 0000000000001c9c
R13: dffffc0000000000 R14: 00007fcc15d8eba9 R15: ffffffff8de113f0
 kernel_text_address+0xa5/0xe0
 __kernel_text_address+0xd/0x40
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 do_check_common+0x19b7/0x24f0
 bpf_check+0x12c60/0x1d4c0
 bpf_prog_load+0x1318/0x1930
 __sys_bpf+0x528/0x870
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc15d8eba9
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:00007fcc16c58038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fcc15fd5fa0 RCX: 00007fcc15d8eba9
RDX: 0000000000000094 RSI: 00002000000018c0 RDI: 0000000000000005
RBP: 00007fcc15e11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcc15fd6038 R14: 00007fcc15fd5fa0 R15: 00007ffe93595f38
 </TASK>
sched: DL replenish lagged too much
