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-6,10.128.0.29' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
syzkaller login: [   49.367530] perf buffer not large enough
[   49.367579] ------------[ cut here ]------------
[   49.368955] WARNING: CPU: 0 PID: 2994 at kernel/trace/trace_event_perf.c:274 perf_trace_buf_alloc+0x12d/0x160
[   49.370504] Kernel panic - not syncing: panic_on_warn set ...
[   49.370504] 
[   49.371487] CPU: 0 PID: 2994 Comm: syzkaller099905 Not tainted 4.13.0-next-20170914+ #22
[   49.372581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.373841] Call Trace:
[   49.374205]  dump_stack+0x194/0x257
[   49.374721]  ? arch_local_irq_restore+0x53/0x53
[   49.375382]  panic+0x1e4/0x417
[   49.375817]  ? __warn+0x1d9/0x1d9
[   49.376321]  ? show_regs_print_info+0x65/0x65
[   49.376959]  ? perf_trace_buf_alloc+0x12d/0x160
[   49.377582]  __warn+0x1c4/0x1d9
[   49.378028]  ? perf_trace_buf_alloc+0x12d/0x160
[   49.378663]  report_bug+0x211/0x2d0
[   49.379178]  fixup_bug+0x40/0x90
[   49.379636]  do_trap+0x260/0x390
[   49.380101]  do_error_trap+0x120/0x390
[   49.380686]  ? do_trap+0x390/0x390
[   49.381165]  ? perf_trace_buf_alloc+0x12d/0x160
[   49.381869]  ? vprintk_emit+0x3ea/0x590
[   49.382409]  ? find_held_lock+0x39/0x1d0
[   49.382960]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   49.383611]  do_invalid_op+0x1b/0x20
[   49.384113]  invalid_op+0x18/0x20
[   49.384609] RIP: 0010:perf_trace_buf_alloc+0x12d/0x160
[   49.385338] RSP: 0018:ffff8801ce57f760 EFLAGS: 00010286
[   49.386104] RAX: 000000000000001c RBX: 1ffff10039cafefe RCX: 0000000000000000
[   49.387062] RDX: 000000000000001c RSI: 1ffff10039cafeac RDI: ffffed0039cafee0
[   49.390199] RBP: ffff8801ce57f780 R08: ffff8801ce57ee50 R09: 0000000000000000
[   49.397439] R10: ffff8801cf710440 R11: 0000000000000000 R12: 0000000000000e54
[   49.404681] R13: ffff8801ce57f810 R14: ffff8801ce57f890 R15: ffff8801ce977540
[   49.411946]  perf_trace_bpf_map_keyval+0x260/0xbd0
[   49.416849]  ? lock_downgrade+0x990/0x990
[   49.420975]  ? perf_trace_bpf_map_create+0x9b0/0x9b0
[   49.426046]  ? trace_hardirqs_on+0xd/0x10
[   49.430170]  ? __htab_percpu_map_update_elem+0x6a7/0xa40
[   49.435601]  ? rcu_pm_notify+0xc0/0xc0
[   49.439467]  ? perf_trace_bpf_map_create+0x9b0/0x9b0
[   49.444543]  SyS_bpf+0x33f4/0x46a0
[   49.448059]  ? bpf_prog_get+0x20/0x20
[   49.451849]  ? __lock_is_held+0xbc/0x140
[   49.455897]  ? __fd_install+0x2f7/0x6a0
[   49.459848]  ? __mutex_unlock_slowpath+0xe9/0xac0
[   49.464668]  ? get_unused_fd_flags+0x190/0x190
[   49.469224]  ? do_raw_spin_trylock+0x190/0x190
[   49.473776]  ? add_event_to_ctx+0x14e0/0x14e0
[   49.478247]  ? mark_held_locks+0xb2/0x100
[   49.482365]  ? _raw_spin_unlock_irqrestore+0x31/0xba
[   49.487450]  ? fd_install+0x4d/0x60
[   49.491051]  ? SYSC_perf_event_open+0x4c3/0x2e00
[   49.495778]  ? handle_mm_fault+0x410/0x8d0
[   49.499984]  ? down_read_trylock+0xdb/0x170
[   49.504286]  ? perf_event_set_output+0x5a0/0x5a0
[   49.509014]  ? up_read+0x1a/0x40
[   49.512355]  ? __do_page_fault+0x35b/0xb60
[   49.516568]  ? do_page_fault+0xee/0x720
[   49.520529]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   49.525355]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   49.530086]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   49.534810] RIP: 0033:0x440889
[   49.537973] RSP: 002b:00007ffda272ead8 EFLAGS: 00000207 ORIG_RAX: 0000000000000141
[   49.545650] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000440889
[   49.552888] RDX: 0000000000000020 RSI: 000000002000b000 RDI: 0000000000000002
[   49.560125] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   49.567363] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000000000
[   49.574601] R13: 0000000000401dc0 R14: 0000000000000000 R15: 0000000000000000
[   49.582045] Dumping ftrace buffer:
[   49.585626]    (ftrace buffer empty)
[   49.589308] Kernel Offset: disabled
[   49.592917] Rebooting in 86400 seconds..