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-386-4,10.128.0.20' (ECDSA) to the list of known hosts. 2017/10/02 19:01:20 parsed 1 programs 2017/10/02 19:01:20 executed programs: 0 syzkaller login: [ 39.667426] perf buffer not large enough [ 39.667471] ------------[ cut here ]------------ [ 39.676429] WARNING: CPU: 0 PID: 3010 at kernel/trace/trace_event_perf.c:274 perf_trace_buf_alloc+0x12d/0x160 [ 39.686680] Kernel panic - not syncing: panic_on_warn set ... [ 39.686680] [ 39.694019] CPU: 0 PID: 3010 Comm: syz-executor0 Not tainted 4.14.0-rc3+ #22 [ 39.701182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.710509] Call Trace: [ 39.713073] dump_stack+0x194/0x257 [ 39.716672] ? arch_local_irq_restore+0x53/0x53 [ 39.721326] panic+0x1e4/0x417 [ 39.724488] ? __warn+0x1d9/0x1d9 [ 39.727913] ? show_regs_print_info+0x65/0x65 [ 39.732393] ? perf_trace_buf_alloc+0x12d/0x160 [ 39.737032] __warn+0x1c4/0x1d9 [ 39.740283] ? perf_trace_buf_alloc+0x12d/0x160 [ 39.744926] report_bug+0x211/0x2d0 [ 39.748529] fixup_bug+0x40/0x90 [ 39.751867] do_trap+0x260/0x390 [ 39.755213] do_error_trap+0x120/0x390 [ 39.759069] ? vprintk_emit+0x49b/0x590 [ 39.763017] ? do_trap+0x390/0x390 [ 39.766529] ? perf_trace_buf_alloc+0x12d/0x160 [ 39.771167] ? vprintk_emit+0x3ea/0x590 [ 39.775116] ? find_held_lock+0x39/0x1d0 [ 39.779154] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.783978] do_invalid_op+0x1b/0x20 [ 39.787665] invalid_op+0x18/0x20 [ 39.791088] RIP: 0010:perf_trace_buf_alloc+0x12d/0x160 [ 39.796331] RSP: 0018:ffff8801cdca75c8 EFLAGS: 00010282 [ 39.801666] RAX: 000000000000001c RBX: 1ffff10039b94ecb RCX: 0000000000000000 [ 39.808905] RDX: 000000000000001c RSI: 1ffff10039b94e79 RDI: ffffed0039b94ead [ 39.816145] RBP: ffff8801cdca75e8 R08: ffff8801cdca6cb8 R09: 0000000000000000 [ 39.823384] R10: ffff8801ce1e6080 R11: 0000000000000000 R12: 0000000000000e54 [ 39.830625] R13: ffff8801cdca7678 R14: ffff8801cdca76f8 R15: ffff8801ce3bccc0 [ 39.837884] ? perf_trace_buf_alloc+0x12d/0x160 [ 39.842529] perf_trace_bpf_map_keyval+0x260/0xbd0 [ 39.847428] ? lock_downgrade+0x990/0x990 [ 39.851558] ? perf_trace_bpf_map_create+0x9b0/0x9b0 [ 39.856632] ? trace_hardirqs_on+0xd/0x10 [ 39.860754] ? __htab_percpu_map_update_elem+0x6a7/0xa40 [ 39.866185] ? rcu_pm_notify+0xc0/0xc0 [ 39.870050] ? perf_trace_bpf_map_create+0x9b0/0x9b0 [ 39.875127] SyS_bpf+0x33f4/0x46a0 [ 39.878646] ? bpf_prog_get+0x20/0x20 [ 39.882437] ? do_futex+0x780/0x20d0 [ 39.886123] ? __lock_is_held+0xbc/0x140 [ 39.890167] ? exit_robust_list+0x240/0x240 [ 39.894459] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 39.899282] ? get_unused_fd_flags+0x190/0x190 [ 39.903839] ? do_raw_spin_trylock+0x190/0x190 [ 39.908388] ? add_event_to_ctx+0x14e0/0x14e0 [ 39.912857] ? mark_held_locks+0xb2/0x100 [ 39.916978] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.922063] ? fd_install+0x4d/0x60 [ 39.925670] ? SYSC_perf_event_open+0x4c3/0x2e00 [ 39.930411] ? perf_event_set_output+0x5a0/0x5a0 [ 39.935161] ? handle_mm_fault+0x410/0x8d0 [ 39.939365] ? down_read_trylock+0xdb/0x170 [ 39.943656] ? __do_page_fault+0x31e/0xd60 [ 39.947869] ? compat_SyS_futex+0x288/0x380 [ 39.952165] ? compat_SyS_get_robust_list+0x300/0x300 [ 39.957336] ? do_fast_syscall_32+0x158/0xf05 [ 39.961803] ? bpf_prog_get+0x20/0x20 [ 39.965574] do_fast_syscall_32+0x3f2/0xf05 [ 39.969873] ? do_int80_syscall_32+0x940/0x940 [ 39.974425] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.979157] ? lockdep_sys_exit+0x47/0xf0 [ 39.983285] ? syscall_return_slowpath+0x2b3/0x510 [ 39.988190] ? sysret32_from_system_call+0x5/0x3b [ 39.993007] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.997826] entry_SYSENTER_compat+0x51/0x60 [ 40.002204] RIP: 0023:0xf7f7bc79 [ 40.005537] RSP: 002b:00000000ffdfcd5c EFLAGS: 00000296 ORIG_RAX: 0000000000000165 [ 40.013216] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000002000b000 [ 40.020455] RDX: 0000000000000020 RSI: 0000000000000000 RDI: 0000000000000000 [ 40.027697] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 40.034934] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 40.042182] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 40.049573] Dumping ftrace buffer: [ 40.053128] (ftrace buffer empty) [ 40.056808] Kernel Offset: disabled [ 40.060413] Rebooting in 86400 seconds..