random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
urandom_read: 1 callbacks suppressed
random: sshd: uninitialized urandom read (32 bytes read)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 0 at net/ipv4/af_inet.c:167 inet_sock_destruct+0x598/0x760 net/ipv4/af_inet.c:167
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.122-g54068d6 #26
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801db307cc0 ffffffff81eb8829 ffffffff83c48ac0 00000000ffffffff
 0000000000000000 0000000000000001 00000000000000a7 ffff8801db307d80
 ffffffff81423f35 0000000041b58ab3 ffffffff843bb838 ffffffff81423d76
Call Trace:
 <IRQ> [   29.824889]  [<ffffffff81eb8829>] __dump_stack lib/dump_stack.c:15 [inline]
 <IRQ> [   29.824889]  [<ffffffff81eb8829>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81423f35>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff81424221>] __warn.cold.9+0xc1/0x17f kernel/panic.c:542
 [<ffffffff8113837c>] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
 [<ffffffff8342b758>] inet_sock_destruct+0x598/0x760 net/ipv4/af_inet.c:167
 [<ffffffff836c4ac9>] l2tp_tunnel_destruct+0x339/0x590 net/l2tp/l2tp_core.c:1329
 [<ffffffff830270f5>] __sk_destruct+0x55/0x590 net/core/sock.c:1428
 [<ffffffff81289a6e>] __rcu_reclaim kernel/rcu/rcu.h:118 [inline]
 [<ffffffff81289a6e>] rcu_do_batch kernel/rcu/tree.c:2789 [inline]
 [<ffffffff81289a6e>] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline]
 [<ffffffff81289a6e>] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline]
 [<ffffffff81289a6e>] rcu_process_callbacks+0x8ae/0x12b0 kernel/rcu/tree.c:3037
 [<ffffffff83a078c0>] __do_softirq+0x210/0x940 kernel/softirq.c:288
 [<ffffffff8114d514>] invoke_softirq kernel/softirq.c:368 [inline]
 [<ffffffff8114d514>] irq_exit+0x114/0x150 kernel/softirq.c:409
 [<ffffffff83a064a1>] exiting_irq arch/x86/include/asm/apic.h:669 [inline]
 [<ffffffff83a064a1>] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:962
 [<ffffffff83a02630>] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:648
 <EOI> [   29.953840]  [<ffffffff839ff8d6>] ? native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:55
 [<ffffffff839fef15>] arch_safe_halt arch/x86/include/asm/paravirt.h:104 [inline]
 [<ffffffff839fef15>] default_idle+0x55/0x360 arch/x86/kernel/process.c:437
 [<ffffffff8106ae20>] arch_cpu_idle+0x10/0x20 arch/x86/kernel/process.c:428
 [<ffffffff839ffd35>] default_idle_call+0x45/0x60 kernel/sched/idle.c:97
 [<ffffffff81225455>] cpuidle_idle_call kernel/sched/idle.c:155 [inline]
 [<ffffffff81225455>] cpu_idle_loop kernel/sched/idle.c:248 [inline]
 [<ffffffff81225455>] cpu_startup_entry+0x2b5/0x380 kernel/sched/idle.c:303
 [<ffffffff810af308>] start_secondary+0x328/0x400 arch/x86/kernel/smpboot.c:251
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..