INIT: Entering runlevel: 2

[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

Warning: Permanently added 'ci-upstream-next-kasan-gce-8,10.128.15.210' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   33.026598] ------------[ cut here ]------------
[   33.031383] WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 __switch_to+0xfbc/0x1310
[   33.040975] Kernel panic - not syncing: panic_on_warn set ...
[   33.040975] 
[   33.048308] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.0-rc1-next-20170921+ #27
[   33.056069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.065389] Call Trace:
[   33.068074] Dumping ftrace buffer:
[   33.071637]    (ftrace buffer empty)
[   33.075317] Kernel Offset: disabled
[   33.078923] Rebooting in 86400 seconds..