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-1,10.128.0.31' (ECDSA) to the list of known hosts.
2017/12/04 14:30:33 fuzzer started
2017/12/04 14:30:33 dialing manager at 10.128.0.26:36183
syzkaller login: [   29.488674] WARNING: CPU: 0 PID: 3087 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   29.489927] Kernel panic - not syncing: panic_on_warn set ...
[   29.489927] 
[   29.490906] CPU: 0 PID: 3087 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   29.491859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.493089] Call Trace:
[   29.493449]  dump_stack+0x194/0x257
[   29.493938]  ? arch_local_irq_restore+0x53/0x53
[   29.494564]  ? vsnprintf+0x1ed/0x1900
[   29.495079]  panic+0x1e4/0x41c
[   29.495512]  ? refcount_error_report+0x214/0x214
[   29.496143]  ? show_regs_print_info+0x65/0x65
[   29.496759]  ? __warn+0x1c1/0x200
[   29.497229]  ? __wake_up_common+0x433/0x770
[   29.497803]  __warn+0x1dc/0x200
[   29.498247]  ? __wake_up_common+0x433/0x770
[   29.498840]  report_bug+0x211/0x2d0
[   29.499333]  fixup_bug.part.11+0x37/0x80
[   29.499877]  do_error_trap+0x2d7/0x3e0
[   29.500403]  ? math_error+0x400/0x400
[   29.500931]  ? check_noncircular+0x20/0x20
[   29.501516]  ? find_held_lock+0x39/0x1d0
[   29.502064]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   29.502717]  do_invalid_op+0x1b/0x20
[   29.503216]  invalid_op+0x22/0x40
[   29.503681] RIP: 0010:__wake_up_common+0x433/0x770
[   29.504331] RSP: 0018:ffff8801cbc974b0 EFLAGS: 00010046
[   29.505062] RAX: 0000000000000000 RBX: ffff8801cbdf8410 RCX: 0000000000000004
[   29.506013] RDX: 1ffffffff0bd9741 RSI: ffff8801cbdf8428 RDI: 0000000000000082
[   29.506964] RBP: ffff8801cbc975b0 R08: 0000000000000000 R09: 0000000000000000
[   29.507916] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   29.508874] R13: ffff8801cbdf8450 R14: 0000000000000001 R15: ffff8801cbdf84b0
[   29.516126]  ? __lock_is_held+0xbc/0x140
[   29.520155]  ? lock_release+0xda0/0xda0
[   29.524102]  ? do_wait_intr+0x3e0/0x3e0
[   29.528045]  ? __lock_is_held+0xbc/0x140
[   29.532080]  __wake_up_locked+0x11/0x20
[   29.536021]  ep_insert+0x15d0/0x1b10
[   29.539714]  ? ep_poll+0x1190/0x1190
[   29.543397]  ? lock_release+0xda0/0xda0
[   29.547337]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   29.553185]  ? lock_downgrade+0x980/0x980
[   29.557299]  ? rcu_note_context_switch+0x710/0x710
[   29.562201]  ? __might_sleep+0x95/0x190
[   29.566142]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.570255]  ? __mutex_lock+0x16f/0x1a80
[   29.574280]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.578395]  ? lock_downgrade+0x980/0x980
[   29.582509]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.586631]  ? lock_release+0xda0/0xda0
[   29.590575]  ? __lock_is_held+0xbc/0x140
[   29.594614]  ? __fget+0x362/0x580
[   29.598042]  ? iterate_fd+0x3f0/0x3f0
[   29.601808]  ? find_held_lock+0x39/0x1d0
[   29.605843]  ? lock_downgrade+0x980/0x980
[   29.609958]  ? __might_fault+0xe0/0x1d0
[   29.613900]  ? __fget_light+0x29d/0x390
[   29.617840]  ? fget_raw+0x20/0x20
[   29.621261]  ? is_bpf_text_address+0xa4/0x120
[   29.625724]  ? kernel_text_address+0x102/0x140
[   29.630273]  ? __might_sleep+0x95/0x190
[   29.634212]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   29.639634]  SyS_epoll_ctl+0x12e4/0x1ab0
[   29.643658]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   29.647857]  ? save_stack+0xa3/0xd0
[   29.651456]  ? SyS_epoll_create+0x240/0x240
[   29.655742]  ? __lock_is_held+0xbc/0x140
[   29.659780]  ? __fd_install+0x288/0x740
[   29.663721]  ? get_unused_fd_flags+0x190/0x190
[   29.668269]  ? may_open_dev+0xe0/0xe0
[   29.672041]  ? rcu_pm_notify+0xc0/0xc0
[   29.675903]  ? putname+0xee/0x130
[   29.679324]  ? putname+0xee/0x130
[   29.682742]  ? rcu_read_lock_sched_held+0x108/0x120
[   29.687724]  ? kmem_cache_free+0x249/0x280
[   29.691926]  ? putname+0xf3/0x130
[   29.695351]  ? do_sys_open+0x320/0x6d0
[   29.699210]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   29.704020]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   29.709005]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   29.713733]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   29.718452] RIP: 0033:0x45f7d8
[   29.721607] RSP: 002b:000000c4202554b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   29.729279] RAX: ffffffffffffffda RBX: 000000000045d6b0 RCX: 000000000045f7d8
[   29.736513] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   29.743747] RBP: 000000c420255778 R08: 0000000000000000 R09: 0000000000000000
[   29.750982] R10: 000000c4202554e4 R11: 0000000000000246 R12: 000000c420310dbf
[   29.758225] R13: 0000000000000100 R14: ffffffffffffffff R15: 0000000000000100
[   29.765653] Dumping ftrace buffer:
[   29.769220]    (ftrace buffer empty)
[   29.772896] Kernel Offset: disabled
[   29.776492] Rebooting in 86400 seconds..