Warning: Permanently added 'ci-android-49-kasan-gce-7,10.128.0.48' (ECDSA) to the list of known hosts. serialport: Connected to syzkaller.us-central1-c.ci-android-49-kasan-gce-7 port 1 (session ID: 507d7ac507b8ca5d17bc95dfa8eff41901cad180e3242e6b8f68bc5872bc38f0, active connections: 1). INIT: Entering runlevel: 2 [[36minfo[39;49m] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 2017/07/27 00:31:03 parsed 1 programs 2017/07/27 00:31:03 executed programs: 0 syzkaller login: [ 28.544818] ------------[ cut here ]------------ [ 28.545638] WARNING: CPU: 1 PID: 0 at ./arch/x86/include/asm/fpu/internal.h:368 __switch_to+0x6c5/0x19a0 [ 28.546971] Kernel panic - not syncing: panic_on_warn set ... [ 28.546971] [ 28.548043] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.9.39-g913d980 #7 [ 28.549003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.550353] ffff8801d9e27770 ffffffff81eacd59 ffffffff83a48d40 ffff8801d9e27848 [ 28.551511] ffffffff83a17700 ffffffff810513a5 0000000000000009 ffff8801d9e27838 [ 28.552739] ffffffff814265a6 0000000041b58ab3 ffffffff84169b8d ffffffff814263f2 [ 28.554071] Call Trace: