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-4,10.128.15.203' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz0.router_solicitations = 0
executing program
syzkaller login: [   55.122602] perf buffer not large enough
[   55.122653] ------------[ cut here ]------------
[   55.124007] WARNING: CPU: 0 PID: 3008 at kernel/trace/trace_event_perf.c:274 perf_trace_buf_alloc+0x12d/0x160
[   55.125469] Kernel panic - not syncing: panic_on_warn set ...
[   55.125469] 
[   55.126440] CPU: 0 PID: 3008 Comm: syzkaller609027 Not tainted 4.14.0-rc7+ #159
[   55.127418] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.128657] Call Trace:
[   55.129034]  dump_stack+0x194/0x257
[   55.129525]  ? arch_local_irq_restore+0x53/0x53
[   55.130160]  panic+0x1e4/0x417
[   55.130594]  ? __warn+0x1d9/0x1d9
[   55.131060]  ? show_regs_print_info+0x65/0x65
[   55.131672]  ? perf_trace_buf_alloc+0x12d/0x160
[   55.132295]  __warn+0x1c4/0x1d9
[   55.132743]  ? perf_trace_buf_alloc+0x12d/0x160
[   55.133384]  report_bug+0x211/0x2d0
[   55.133882]  fixup_bug+0x40/0x90
[   55.134351]  do_trap+0x260/0x390
[   55.134813]  do_error_trap+0x120/0x390
[   55.135339]  ? do_trap+0x390/0x390
[   55.135837]  ? perf_trace_buf_alloc+0x12d/0x160
[   55.136484]  ? vprintk_emit+0x3ea/0x590
[   55.137027]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   55.137678]  do_invalid_op+0x1b/0x20
[   55.138179]  invalid_op+0x18/0x20
[   55.138645] RIP: 0010:perf_trace_buf_alloc+0x12d/0x160
[   55.139344] RSP: 0018:ffff8801c0fdf760 EFLAGS: 00010286
[   55.140087] RAX: 000000000000001c RBX: 1ffff100381fbefe RCX: 0000000000000000
[   55.141058] RDX: 000000000000001c RSI: 1ffff100381fbeac RDI: ffffed00381fbee0
[   55.142013] RBP: ffff8801c0fdf780 R08: 0000000000000001 R09: 0000000000000000
[   55.142986] R10: ffff8801c0fdf7a0 R11: 0000000000000000 R12: 000000000000082c
[   55.150234] R13: ffff8801c0fdf810 R14: ffff8801c0fdf890 R15: ffff8801d8b34b40
[   55.157494]  perf_trace_bpf_map_keyval+0x260/0xbd0
[   55.162401]  ? perf_trace_bpf_map_create+0x9b0/0x9b0
[   55.167478]  ? _find_next_bit+0xee/0x120
[   55.171509]  ? find_next_bit+0x27/0x30
[   55.175367]  ? rcu_pm_notify+0xc0/0xc0
[   55.179227]  ? perf_trace_bpf_map_create+0x9b0/0x9b0
[   55.184298]  SyS_bpf+0x33eb/0x46a0
[   55.187813]  ? bpf_prog_get+0x20/0x20
[   55.191590]  ? check_noncircular+0x20/0x20
[   55.195800]  ? __handle_mm_fault+0x587/0x39c0
[   55.200265]  ? check_noncircular+0x20/0x20
[   55.204464]  ? __pmd_alloc+0x4e0/0x4e0
[   55.208325]  ? find_held_lock+0x35/0x1d0
[   55.212358]  ? handle_mm_fault+0x248/0x8d0
[   55.216564]  ? find_held_lock+0x35/0x1d0
[   55.220604]  ? __do_page_fault+0x5f7/0xc90
[   55.224808]  ? lock_downgrade+0x990/0x990
[   55.228932]  ? handle_mm_fault+0x410/0x8d0
[   55.233130]  ? down_read_trylock+0xdb/0x170
[   55.237419]  ? __do_page_fault+0x32d/0xc90
[   55.241622]  ? __handle_mm_fault+0x39c0/0x39c0
[   55.246170]  ? vmacache_find+0x5f/0x280
[   55.250119]  ? up_read+0x1a/0x40
[   55.253454]  ? __do_page_fault+0x3d6/0xc90
[   55.257663]  ? mm_fault_error+0x2c0/0x2c0
[   55.261786]  ? do_page_fault+0xee/0x720
[   55.265746]  ? __do_page_fault+0xc90/0xc90
[   55.269961]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   55.274778]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   55.279506]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   55.284226] RIP: 0033:0x445c29
[   55.287381] RSP: 002b:00000000007eff68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[   55.295053] RAX: ffffffffffffffda RBX: 00007ffe66adb340 RCX: 0000000000445c29
[   55.302291] RDX: 0000000000000020 RSI: 000000002053dfe0 RDI: 0000000000000002
[   55.309527] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   55.316767] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403280
[   55.324004] R13: 0000000000403310 R14: 0000000000000000 R15: 0000000000000000
[   55.331739] Dumping ftrace buffer:
[   55.335292]    (ftrace buffer empty)
[   55.338972] Kernel Offset: disabled
[   55.342572] Rebooting in 86400 seconds..