rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6011
rcu: 	(detected by 0, t=10502 jiffies, g=7601, q=8688 ncpus=2)
task:syz.0.35        state:R  running task     stack:23544 pid:6011  tgid:6010  ppid:5855   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:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 db d0 02 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90000007010 EFLAGS: 00000206
RAX: e2c1fd48badd0b00 RBX: 0000000000000202 RCX: e2c1fd48badd0b00
RDX: 0000000000000004 RSI: ffffffff8dba5d03 RDI: ffffffff8be33300
RBP: ffff888020e9e1d0 R08: ffffc900064c7cf0 R09: 0000000000000000
R10: ffffc90000007198 R11: fffff52000000e35 R12: 0000000000000004
R13: 0000000000000004 R14: ffffffff8e139ea0 R15: ffff888020e9d640
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 ref_tracker_alloc+0x133/0x460
 ___neigh_create+0xc9e/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+0x32f/0x950
Code: 28 84 c0 0f 85 e3 02 00 00 f7 03 20 00 00 00 0f 85 c8 01 00 00 f3 0f 1e fa 4c 89 ff be 04 00 00 00 e8 e5 0c 92 00 f0 41 ff 0f <0f> 84 b1 00 00 00 81 7d a8 80 00 00 00 0f 84 b9 00 00 00 48 83 c4
RSP: 0018:ffffc900064c77b8 EFLAGS: 00000202
RAX: 1ffff110041d3b01 RBX: ffff888020e9ecb8 RCX: ffffffff8191174b
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888106634080
RBP: ffffc900064c7810 R08: ffff888106634083 R09: 1ffff11020cc6810
R10: dffffc0000000000 R11: ffffed1020cc6811 R12: ffff888020e9db98
R13: dffffc0000000000 R14: ffff88801cad5640 R15: ffff888106634080
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:futex_private_hash_put+0x167/0x280
Code: 89 ee e8 4c db 0c 00 eb 33 e8 45 d8 0c 00 49 81 c7 10 03 00 00 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 <74> 08 4c 89 ff e8 5f 4d 70 00 49 8b 07 65 ff 08 31 ed e8 a2 7a c6
RSP: 0018:ffffc900064c7ba8 EFLAGS: 00000246
RAX: 1ffff11020cc671a RBX: 1ffff11022744003 RCX: dffffc0000000000
RDX: ffffc90003ba2000 RSI: 000000000000074c RDI: 000000000000074d
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81b2d30b
R10: dffffc0000000000 R11: ffffed1021a8839e R12: ffff888113a20000
R13: ffff888113a20018 R14: ffffffff81b2d30b R15: ffff8881066338d0
 futex_wake+0x4b2/0x560
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f63ca18eba9
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:00007f63caff70e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f63ca3d5fa8 RCX: 00007f63ca18eba9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f63ca3d5fac
RBP: 00007f63ca3d5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f63ca3d6038 R14: 00007ffded1272c0 R15: 00007ffded1273a8
 </TASK>
