Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000005

CPU: 1 PID: 1 Comm: init Not tainted 4.9.111-g03c70fe #58
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d99bfa00 ffffffff81eb2729 ffffffff83c4a840 00000000ffffffff
 ffff8801d99d0000 0000000000000001 ffff8801d99d0010 ffff8801d99bfac0
 ffffffff814219f5 0000000041b58ab3 ffffffff843ba8c0 ffffffff81421836
Call Trace:
 [<ffffffff81eb2729>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb2729>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff814219f5>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff81422527>] find_child_reaper kernel/exit.c:552 [inline]
 [<ffffffff81422527>] forget_original_parent kernel/exit.c:641 [inline]
 [<ffffffff81422527>] exit_notify kernel/exit.c:677 [inline]
 [<ffffffff81422527>] do_exit.cold.24+0x17b/0x2b2 kernel/exit.c:859
 [<ffffffff81146f51>] do_group_exit+0x111/0x340 kernel/exit.c:941
 [<ffffffff81169daf>] get_signal+0x4cf/0x1450 kernel/signal.c:2321
 [<ffffffff81052637>] do_signal+0x87/0x19f0 arch/x86/kernel/signal.c:807
 [<ffffffff81005581>] exit_to_usermode_loop+0xe1/0x120 arch/x86/entry/common.c:157
 [<ffffffff81005f8b>] prepare_exit_to_usermode+0xbb/0xe0 arch/x86/entry/common.c:191
 [<ffffffff839f9608>] retint_user+0x8/0x3c
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..