random: sshd: uninitialized urandom read (32 bytes read, 128 bits of entropy available) random: nonblocking pool is initialized IPVS: Creating netns size=2552 id=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3891 at kernel/signal.c:343 task_participate_group_stop+0x219/0x2c0 kernel/signal.c:343() Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3891 Comm: 3 Not tainted 4.4.129-g23eaecc #26 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 7ee75e049805e62a ffff8801c93dfab0 ffffffff81e0dc8d ffffffff83a43ec0 ffff8800bafbb000 ffffffff83a49b00 0000000000000009 0000000000000157 ffff8801c93dfb70 ffffffff81409ed4 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] panic+0x19e/0x38d kernel/panic.c:112 [] warn_slowpath_common.cold.6+0x20/0x20 kernel/panic.c:455 [] warn_slowpath_null+0x29/0x30 kernel/panic.c:492 [] task_participate_group_stop+0x219/0x2c0 kernel/signal.c:343 [] do_signal_stop+0x36f/0x7c0 kernel/signal.c:2024 [] get_signal+0x5de/0x14b0 kernel/signal.c:2201 [] do_signal+0x8b/0x1d30 arch/x86/kernel/signal.c:712 [] exit_to_usermode_loop+0x11a/0x160 arch/x86/entry/common.c:248 [] prepare_exit_to_usermode arch/x86/entry/common.c:283 [inline] [] syscall_return_slowpath arch/x86/entry/common.c:348 [inline] [] do_syscall_32_irqs_on arch/x86/entry/common.c:398 [inline] [] do_fast_syscall_32+0x620/0x8b0 arch/x86/entry/common.c:459 [] sysenter_flags_fixed+0xd/0x17 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..