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-kasan-gce-1,10.128.0.20' (ECDSA) to the list of known hosts.
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syzkaller login: [   36.923327] ------------[ cut here ]------------
[   36.924076] WARNING: CPU: 0 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:373 __switch_to+0x107c/0x1400
[   36.925342] Kernel panic - not syncing: panic_on_warn set ...
[   36.925342] 
[   36.926370] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.13.0-rc5+ #43
[   36.927233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   36.928453] Call Trace:
[   36.929139] Dumping ftrace buffer:
[   36.929648]    (ftrace buffer empty)
[   36.930148] Kernel Offset: disabled
[   36.930638] Rebooting in 86400 seconds..