IPVS: set_ctl: invalid protocol: 51 127.0.0.1:20004 wrr
IPVS: set_ctl: invalid protocol: 51 127.0.0.1:20004 wrr
dccp_invalid_packet: P.type (REQUEST) not Data || [Data]Ack, while P.X == 0
dccp_invalid_packet: P.type (REQUEST) not Data || [Data]Ack, while P.X == 0
INFO: rcu_sched self-detected stall on CPU
	0-...!: (124987 ticks this GP) idle=7da/1/4611686018427387906 softirq=18983/18984 fqs=6 
	 (t=125000 jiffies g=10270 c=10269 q=985843)
NMI backtrace for cpu 0
CPU: 0 PID: 8 Comm: ksoftirqd/0 Not tainted 4.17.0-rc6+ #65
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1b9/0x294 lib/dump_stack.c:113
 nmi_cpu_backtrace.cold.4+0x19/0xce lib/nmi_backtrace.c:103
 nmi_trigger_cpumask_backtrace+0x151/0x192 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:156 [inline]
 rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1376
 print_cpu_stall kernel/rcu/tree.c:1525 [inline]
 check_cpu_stall.isra.61.cold.80+0x36c/0x59a kernel/rcu/tree.c:1593
 __rcu_pending kernel/rcu/tree.c:3356 [inline]
 rcu_pending kernel/rcu/tree.c:3401 [inline]
 rcu_check_callbacks+0x21b/0xad0 kernel/rcu/tree.c:2763
 update_process_times+0x2d/0x70 kernel/time/timer.c:1636
 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x3e3/0x10a0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
 smp_apic_timer_interrupt+0x15d/0x710 arch/x86/kernel/apic/apic.c:1050
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline]
RIP: 0010:kmem_cache_free+0xb3/0x2d0 mm/slab.c:3757
RSP: 0018:ffff8801d9aae620 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000007 RBX: ffff880029e490c0 RCX: 1ffff1003b353950
RDX: 0000000000000000 RSI: ffff8801d9a9ca60 RDI: 0000000000000286
RBP: ffff8801d9aae640 R08: ffff8801d9a9ca38 R09: 0000000000000002
R10: ffff8801d9a9c200 R11: 0000000000000000 R12: ffff8801d9450e40
R13: 0000000000000286 R14: ffffffff85d8e11c R15: 0000000000000000
 kfree_skbmem+0x13c/0x210 net/core/skbuff.c:582
 __kfree_skb net/core/skbuff.c:642 [inline]
 consume_skb+0x193/0x550 net/core/skbuff.c:701
 sctp_chunk_destroy net/sctp/sm_make_chunk.c:1462 [inline]
 sctp_chunk_put+0x2c0/0x440 net/sctp/sm_make_chunk.c:1489
 sctp_chunk_free+0x53/0x60 net/sctp/sm_make_chunk.c:1476
 sctp_packet_pack net/sctp/output.c:489 [inline]
 sctp_packet_transmit+0x142e/0x3ba0 net/sctp/output.c:610
 sctp_outq_flush_transports net/sctp/outqueue.c:1164 [inline]
 sctp_outq_flush+0x5f5/0x3430 net/sctp/outqueue.c:1212
 sctp_outq_uncork+0x6a/0x80 net/sctp/outqueue.c:776
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1820 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline]
 sctp_do_sm+0x596/0x7160 net/sctp/sm_sideeffect.c:1191
 sctp_generate_heartbeat_event+0x218/0x450 net/sctp/sm_sideeffect.c:406
 call_timer_fn+0x230/0x940 kernel/time/timer.c:1326
 expire_timers kernel/time/timer.c:1363 [inline]
 __run_timers+0x79e/0xc50 kernel/time/timer.c:1666
 run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692
 __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285
 run_ksoftirqd+0x86/0x100 kernel/softirq.c:646
 smpboot_thread_fn+0x417/0x870 kernel/smpboot.c:164
 kthread+0x345/0x410 kernel/kthread.c:240
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412