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-mmots-kasan-gce-3,10.128.0.43' (ECDSA) to the list of known hosts.
2017/12/04 14:33:21 fuzzer started
2017/12/04 14:33:21 dialing manager at 10.128.0.26:36183
syzkaller login: [   27.125408] WARNING: CPU: 1 PID: 3082 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   27.126672] Kernel panic - not syncing: panic_on_warn set ...
[   27.126672] 
[   27.127643] CPU: 1 PID: 3082 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   27.128596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   27.129818] Call Trace:
[   27.130177]  dump_stack+0x194/0x257
[   27.130670]  ? arch_local_irq_restore+0x53/0x53
[   27.131317]  ? vsnprintf+0x1ed/0x1900
[   27.131833]  panic+0x1e4/0x41c
[   27.132267]  ? refcount_error_report+0x214/0x214
[   27.132917]  ? show_regs_print_info+0x65/0x65
[   27.133523]  ? __warn+0x1c1/0x200
[   27.133995]  ? __wake_up_common+0x433/0x770
[   27.134572]  __warn+0x1dc/0x200
[   27.135017]  ? __wake_up_common+0x433/0x770
[   27.135599]  report_bug+0x211/0x2d0
[   27.136096]  fixup_bug.part.11+0x37/0x80
[   27.136642]  do_error_trap+0x2d7/0x3e0
[   27.137169]  ? math_error+0x400/0x400
[   27.137681]  ? check_noncircular+0x20/0x20
[   27.138251]  ? find_held_lock+0x39/0x1d0
[   27.138812]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   27.139465]  do_invalid_op+0x1b/0x20
[   27.139964]  invalid_op+0x22/0x40
[   27.140430] RIP: 0010:__wake_up_common+0x433/0x770
[   27.141082] RSP: 0018:ffff8801cc76f4b0 EFLAGS: 00010046
[   27.141795] RAX: 0000000000000000 RBX: ffff8801cbc4ab90 RCX: 0000000000000004
[   27.142748] RDX: 1ffffffff0bd9741 RSI: ffff8801cbc4aba8 RDI: 0000000000000082
[   27.143712] RBP: ffff8801cc76f5b0 R08: 0000000000000000 R09: 0000000000000000
[   27.144667] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   27.146094] R13: ffff8801cbc4abd0 R14: 0000000000000001 R15: ffff8801cbc4ac30
[   27.153350]  ? __lock_is_held+0xbc/0x140
[   27.157380]  ? lock_release+0xda0/0xda0
[   27.161324]  ? do_wait_intr+0x3e0/0x3e0
[   27.165270]  ? __lock_is_held+0xbc/0x140
[   27.169309]  __wake_up_locked+0x11/0x20
[   27.173251]  ep_insert+0x15d0/0x1b10
[   27.176947]  ? ep_poll+0x1190/0x1190
[   27.180632]  ? lock_release+0xda0/0xda0
[   27.184574]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   27.190425]  ? lock_downgrade+0x980/0x980
[   27.194544]  ? rcu_note_context_switch+0x710/0x710
[   27.199447]  ? __might_sleep+0x95/0x190
[   27.203389]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   27.207506]  ? __mutex_lock+0x16f/0x1a80
[   27.211535]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   27.215658]  ? lock_downgrade+0x980/0x980
[   27.219772]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   27.223893]  ? lock_release+0xda0/0xda0
[   27.227838]  ? __lock_is_held+0xbc/0x140
[   27.231882]  ? __fget+0x362/0x580
[   27.235324]  ? iterate_fd+0x3f0/0x3f0
[   27.239092]  ? find_held_lock+0x39/0x1d0
[   27.243136]  ? lock_downgrade+0x980/0x980
[   27.247253]  ? __might_fault+0xe0/0x1d0
[   27.251200]  ? __fget_light+0x29d/0x390
[   27.255143]  ? fget_raw+0x20/0x20
[   27.258580]  ? is_bpf_text_address+0xa4/0x120
[   27.263044]  ? kernel_text_address+0x102/0x140
[   27.267597]  ? __might_sleep+0x95/0x190
[   27.271539]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   27.276965]  SyS_epoll_ctl+0x12e4/0x1ab0
[   27.280994]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   27.285201]  ? save_stack+0xa3/0xd0
[   27.288807]  ? SyS_epoll_create+0x240/0x240
[   27.293096]  ? __lock_is_held+0xbc/0x140
[   27.297139]  ? __fd_install+0x288/0x740
[   27.301086]  ? get_unused_fd_flags+0x190/0x190
[   27.305636]  ? may_open_dev+0xe0/0xe0
[   27.309410]  ? rcu_pm_notify+0xc0/0xc0
[   27.313269]  ? putname+0xee/0x130
[   27.316691]  ? putname+0xee/0x130
[   27.320112]  ? rcu_read_lock_sched_held+0x108/0x120
[   27.325097]  ? kmem_cache_free+0x249/0x280
[   27.329306]  ? putname+0xf3/0x130
[   27.332730]  ? do_sys_open+0x320/0x6d0
[   27.336593]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   27.341406]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.346393]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.351124]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   27.355848] RIP: 0033:0x45f7d8
[   27.359007] RSP: 002b:000000c4204bf4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   27.366684] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045f7d8
[   27.373922] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   27.381161] RBP: 000000c4204bf6b8 R08: 0000000000000000 R09: 0000000000000000
[   27.388399] R10: 000000c4204bf4e4 R11: 0000000000000246 R12: 005febfd7faff5fe
[   27.395637] R13: 00000000000000fa R14: 0000000000000032 R15: 0000000000000009
[   27.403083] Dumping ftrace buffer:
[   27.406698]    (ftrace buffer empty)
[   27.410381] Kernel Offset: disabled
[   27.413978] Rebooting in 86400 seconds..