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-386-1,10.128.0.33' (ECDSA) to the list of known hosts. 2017/11/03 06:49:33 parsed 1 programs 2017/11/03 06:49:33 executed programs: 0 syzkaller login: [ 42.181792] perf buffer not large enough [ 42.181844] ------------[ cut here ]------------ [ 42.183196] WARNING: CPU: 0 PID: 2990 at kernel/trace/trace_event_perf.c:274 perf_trace_buf_alloc+0x12d/0x160 [ 42.184669] Kernel panic - not syncing: panic_on_warn set ... [ 42.184669] [ 42.185640] CPU: 0 PID: 2990 Comm: syz-executor0 Not tainted 4.14.0-rc7+ #69 [ 42.186582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.187801] Call Trace: [ 42.188163] dump_stack+0x194/0x257 [ 42.188657] ? arch_local_irq_restore+0x53/0x53 [ 42.189310] panic+0x1e4/0x417 [ 42.189744] ? __warn+0x1d9/0x1d9 [ 42.190213] ? show_regs_print_info+0x65/0x65 [ 42.190826] ? perf_trace_buf_alloc+0x12d/0x160 [ 42.191450] __warn+0x1c4/0x1d9 [ 42.191894] ? perf_trace_buf_alloc+0x12d/0x160 [ 42.192523] report_bug+0x211/0x2d0 [ 42.193022] fixup_bug+0x40/0x90 [ 42.193481] do_trap+0x260/0x390 [ 42.193961] do_error_trap+0x120/0x390 [ 42.194481] ? vprintk_emit+0x49b/0x590 [ 42.195019] ? do_trap+0x390/0x390 [ 42.195499] ? perf_trace_buf_alloc+0x12d/0x160 [ 42.196120] ? vprintk_emit+0x3ea/0x590 [ 42.196662] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.197352] do_invalid_op+0x1b/0x20 [ 42.197867] invalid_op+0x18/0x20 [ 42.198351] RIP: 0010:perf_trace_buf_alloc+0x12d/0x160 [ 42.199048] RSP: 0018:ffff8801d279f5c8 EFLAGS: 00010282 [ 42.199761] RAX: 000000000000001c RBX: 1ffff1003a4f3ecb RCX: 0000000000000000 [ 42.200714] RDX: 000000000000001c RSI: 1ffff1003a4f3e79 RDI: ffffed003a4f3ead [ 42.201667] RBP: ffff8801d279f5e8 R08: 0000000000000001 R09: 0000000000000000 [ 42.202619] R10: ffff8801d279f608 R11: 0000000000000000 R12: 000000000000082c [ 42.209859] R13: ffff8801d279f678 R14: ffff8801d279f6f8 R15: ffff8801d2372640 [ 42.217117] ? perf_trace_buf_alloc+0x12d/0x160 [ 42.221761] perf_trace_bpf_map_keyval+0x260/0xbd0 [ 42.226670] ? perf_trace_bpf_map_create+0x9b0/0x9b0 [ 42.231751] ? _find_next_bit+0xee/0x120 [ 42.235785] ? find_next_bit+0x27/0x30 [ 42.239645] ? rcu_pm_notify+0xc0/0xc0 [ 42.243508] ? perf_trace_bpf_map_create+0x9b0/0x9b0 [ 42.248584] SyS_bpf+0x33eb/0x46a0 [ 42.252098] ? bpf_prog_get+0x20/0x20 [ 42.255871] ? mark_held_locks+0xaf/0x100 [ 42.259995] ? do_futex+0x85b/0x2280 [ 42.263679] ? find_held_lock+0x35/0x1d0 [ 42.267724] ? exit_robust_list+0x240/0x240 [ 42.272015] ? do_raw_spin_trylock+0x190/0x190 [ 42.276569] ? lockdep_init_map+0x9/0x10 [ 42.280604] ? check_noncircular+0x20/0x20 [ 42.284815] ? __handle_mm_fault+0x587/0x39c0 [ 42.289287] ? check_noncircular+0x20/0x20 [ 42.293489] ? __pmd_alloc+0x4e0/0x4e0 [ 42.297352] ? find_held_lock+0x35/0x1d0 [ 42.301388] ? handle_mm_fault+0x248/0x8d0 [ 42.305594] ? find_held_lock+0x35/0x1d0 [ 42.309632] ? __do_page_fault+0x5f7/0xc90 [ 42.313836] ? lock_downgrade+0x990/0x990 [ 42.317960] ? handle_mm_fault+0x410/0x8d0 [ 42.322164] ? down_read_trylock+0xdb/0x170 [ 42.326452] ? __do_page_fault+0x32d/0xc90 [ 42.330660] ? compat_SyS_futex+0x288/0x380 [ 42.334954] ? compat_SyS_get_robust_list+0x300/0x300 [ 42.340111] ? __do_page_fault+0x3d6/0xc90 [ 42.344323] ? do_fast_syscall_32+0x158/0xf05 [ 42.348788] ? bpf_prog_get+0x20/0x20 [ 42.352560] do_fast_syscall_32+0x3f2/0xf05 [ 42.356856] ? do_int80_syscall_32+0x940/0x940 [ 42.361404] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.366131] ? syscall_return_slowpath+0x2b3/0x510 [ 42.371031] ? prepare_exit_to_usermode+0x2d0/0x2d0 [ 42.376023] ? sysret32_from_system_call+0x5/0x3b [ 42.380839] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.385658] entry_SYSENTER_compat+0x51/0x60 [ 42.390032] RIP: 0023:0xf7f0ec79 [ 42.393362] RSP: 002b:000000000847f80c EFLAGS: 00000212 ORIG_RAX: 0000000000000165 [ 42.401036] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 000000002053dfe0 [ 42.408274] RDX: 0000000000000020 RSI: 0000000000000000 RDI: 0000000000000000 [ 42.415513] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 42.422750] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 42.429998] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 42.437438] Dumping ftrace buffer: [ 42.441016] (ftrace buffer empty) [ 42.444700] Kernel Offset: disabled [ 42.448303] Rebooting in 86400 seconds..