random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) IPVS: Creating netns size=2536 id=1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3824 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: 3824 Comm: blkid Not tainted 4.9.96-g71fce1e #13 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801db307cc0 ffffffff81eb0b69 ffffffff83a484a0 00000000ffffffff 0000000000000000 0000000000000001 00000000000000a7 ffff8801db307d80 ffffffff8141f975 0000000041b58ab3 ffffffff841b8030 ffffffff8141f7b6 Call Trace: [ 23.716015] [] __dump_stack lib/dump_stack.c:15 [inline] [ 23.716015] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] panic+0x1bf/0x3bc kernel/panic.c:179 [] __warn.cold.9+0xc1/0x17f kernel/panic.c:542 [] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585 [] inet_sock_destruct+0x598/0x760 net/ipv4/af_inet.c:167 [] l2tp_tunnel_destruct+0x339/0x590 net/l2tp/l2tp_core.c:1329 [] __sk_destruct+0x55/0x590 net/core/sock.c:1428 [] __rcu_reclaim kernel/rcu/rcu.h:118 [inline] [] rcu_do_batch kernel/rcu/tree.c:2789 [inline] [] invoke_rcu_callbacks kernel/rcu/tree.c:3053 [inline] [] __rcu_process_callbacks kernel/rcu/tree.c:3020 [inline] [] rcu_process_callbacks+0x8ae/0x12b0 kernel/rcu/tree.c:3037 [] __do_softirq+0x20b/0x937 kernel/softirq.c:284 [] invoke_softirq kernel/softirq.c:364 [inline] [] irq_exit+0x147/0x190 kernel/softirq.c:405 [] exiting_irq arch/x86/include/asm/apic.h:659 [inline] [] smp_apic_timer_interrupt+0x81/0xa0 arch/x86/kernel/apic/apic.c:960 [] apic_timer_interrupt+0xa0/0xb0 arch/x86/entry/entry_64.S:648 [ 23.838354] Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..