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-5,10.128.0.28' (ECDSA) to the list of known hosts.
2017/12/04 14:32:33 fuzzer started
2017/12/04 14:32:33 dialing manager at 10.128.0.26:36183
syzkaller login: [   26.182546] WARNING: CPU: 1 PID: 3080 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   26.183813] Kernel panic - not syncing: panic_on_warn set ...
[   26.183813] 
[   26.184780] CPU: 1 PID: 3080 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   26.185750] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.187020] Call Trace:
[   26.187378]  dump_stack+0x194/0x257
[   26.187868]  ? arch_local_irq_restore+0x53/0x53
[   26.188497]  ? vsnprintf+0x1ed/0x1900
[   26.189013]  panic+0x1e4/0x41c
[   26.189445]  ? refcount_error_report+0x214/0x214
[   26.190075]  ? show_regs_print_info+0x65/0x65
[   26.190707]  ? __warn+0x1c1/0x200
[   26.191177]  ? __wake_up_common+0x433/0x770
[   26.191754]  __warn+0x1dc/0x200
[   26.192197]  ? __wake_up_common+0x433/0x770
[   26.192776]  report_bug+0x211/0x2d0
[   26.193272]  fixup_bug.part.11+0x37/0x80
[   26.193817]  do_error_trap+0x2d7/0x3e0
[   26.194345]  ? math_error+0x400/0x400
[   26.194856]  ? check_noncircular+0x20/0x20
[   26.195426]  ? find_held_lock+0x39/0x1d0
[   26.195978]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   26.196648]  do_invalid_op+0x1b/0x20
[   26.197149]  invalid_op+0x22/0x40
[   26.197613] RIP: 0010:__wake_up_common+0x433/0x770
[   26.198265] RSP: 0018:ffff8801cc3074b0 EFLAGS: 00010046
[   26.199007] RAX: 0000000000000000 RBX: ffff8801cc051d50 RCX: 0000000000000004
[   26.199959] RDX: 1ffffffff0bd9741 RSI: ffff8801cc051d68 RDI: 0000000000000082
[   26.200910] RBP: ffff8801cc3075b0 R08: 0000000000000000 R09: 0000000000000000
[   26.201872] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   26.202823] R13: ffff8801cc051d90 R14: 0000000000000001 R15: ffff8801cc051df0
[   26.210073]  ? __lock_is_held+0xbc/0x140
[   26.214103]  ? lock_release+0xda0/0xda0
[   26.218043]  ? do_wait_intr+0x3e0/0x3e0
[   26.221988]  ? __lock_is_held+0xbc/0x140
[   26.226030]  __wake_up_locked+0x11/0x20
[   26.229973]  ep_insert+0x15d0/0x1b10
[   26.233665]  ? ep_poll+0x1190/0x1190
[   26.237350]  ? lock_release+0xda0/0xda0
[   26.241288]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   26.247135]  ? lock_downgrade+0x980/0x980
[   26.251250]  ? rcu_note_context_switch+0x710/0x710
[   26.256150]  ? __might_sleep+0x95/0x190
[   26.260092]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.264205]  ? __mutex_lock+0x16f/0x1a80
[   26.268228]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.272342]  ? lock_downgrade+0x980/0x980
[   26.276455]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.280576]  ? lock_release+0xda0/0xda0
[   26.284519]  ? __lock_is_held+0xbc/0x140
[   26.288560]  ? __fget+0x362/0x580
[   26.291987]  ? iterate_fd+0x3f0/0x3f0
[   26.295753]  ? find_held_lock+0x39/0x1d0
[   26.299792]  ? lock_downgrade+0x980/0x980
[   26.303906]  ? __might_fault+0xe0/0x1d0
[   26.307850]  ? __fget_light+0x29d/0x390
[   26.311790]  ? fget_raw+0x20/0x20
[   26.315212]  ? is_bpf_text_address+0xa4/0x120
[   26.319684]  ? kernel_text_address+0x102/0x140
[   26.324235]  ? __might_sleep+0x95/0x190
[   26.328174]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   26.333598]  SyS_epoll_ctl+0x12e4/0x1ab0
[   26.337624]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   26.341827]  ? save_stack+0xa3/0xd0
[   26.345429]  ? SyS_epoll_create+0x240/0x240
[   26.349717]  ? __lock_is_held+0xbc/0x140
[   26.353756]  ? __fd_install+0x288/0x740
[   26.357699]  ? get_unused_fd_flags+0x190/0x190
[   26.362247]  ? may_open_dev+0xe0/0xe0
[   26.366018]  ? rcu_pm_notify+0xc0/0xc0
[   26.369872]  ? putname+0xee/0x130
[   26.373293]  ? putname+0xee/0x130
[   26.376718]  ? rcu_read_lock_sched_held+0x108/0x120
[   26.381701]  ? kmem_cache_free+0x249/0x280
[   26.385903]  ? putname+0xf3/0x130
[   26.389328]  ? do_sys_open+0x320/0x6d0
[   26.393190]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   26.398001]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   26.402985]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   26.407713]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   26.412438] RIP: 0033:0x45f7d8
[   26.415593] RSP: 002b:000000c4202134b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   26.423266] RAX: ffffffffffffffda RBX: 0000000000000bfd RCX: 000000000045f7d8
[   26.430502] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   26.437738] RBP: 000000c420213598 R08: 0000000000000000 R09: 0000000000000000
[   26.444974] R10: 000000c4202134e4 R11: 0000000000000246 R12: 005febfd7faff5fe
[   26.452208] R13: 000000000000002f R14: 00000000000009e0 R15: 0000000000000002
[   26.459641] Dumping ftrace buffer:
[   26.463207]    (ftrace buffer empty)
[   26.466884] Kernel Offset: disabled
[   26.470493] Rebooting in 86400 seconds..