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-7,10.128.15.192' (ECDSA) to the list of known hosts.
2017/12/04 14:27:25 fuzzer started
2017/12/04 14:27:25 dialing manager at 10.128.0.26:36183
syzkaller login: [   41.034766] WARNING: CPU: 0 PID: 3090 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   41.036021] Kernel panic - not syncing: panic_on_warn set ...
[   41.036021] 
[   41.036991] CPU: 0 PID: 3090 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   41.037944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.039178] Call Trace:
[   41.039535]  dump_stack+0x194/0x257
[   41.040025]  ? arch_local_irq_restore+0x53/0x53
[   41.040667]  ? vsnprintf+0x1ed/0x1900
[   41.041183]  panic+0x1e4/0x41c
[   41.041615]  ? refcount_error_report+0x214/0x214
[   41.042250]  ? show_regs_print_info+0x65/0x65
[   41.042857]  ? __warn+0x1c1/0x200
[   41.043341]  ? __wake_up_common+0x433/0x770
[   41.043927]  __warn+0x1dc/0x200
[   41.044373]  ? __wake_up_common+0x433/0x770
[   41.044952]  report_bug+0x211/0x2d0
[   41.045448]  fixup_bug.part.11+0x37/0x80
[   41.046004]  do_error_trap+0x2d7/0x3e0
[   41.046562]  ? math_error+0x400/0x400
[   41.047075]  ? check_noncircular+0x20/0x20
[   41.047669]  ? find_held_lock+0x39/0x1d0
[   41.048220]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   41.048870]  do_invalid_op+0x1b/0x20
[   41.049369]  invalid_op+0x22/0x40
[   41.049833] RIP: 0010:__wake_up_common+0x433/0x770
[   41.050484] RSP: 0018:ffff8801bf2274b0 EFLAGS: 00010046
[   41.051194] RAX: 0000000000000000 RBX: ffff8801cc9f9ad0 RCX: 0000000000000004
[   41.052144] RDX: 1ffffffff0bd9741 RSI: ffff8801cc9f9ae8 RDI: 0000000000000082
[   41.053095] RBP: ffff8801bf2275b0 R08: 0000000000000000 R09: 0000000000000000
[   41.054045] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   41.055715] R13: ffff8801cc9f9b10 R14: 0000000000000001 R15: ffff8801cc9f9b70
[   41.062969]  ? __lock_is_held+0xbc/0x140
[   41.067001]  ? lock_release+0xda0/0xda0
[   41.070941]  ? do_wait_intr+0x3e0/0x3e0
[   41.074885]  ? __lock_is_held+0xbc/0x140
[   41.078922]  __wake_up_locked+0x11/0x20
[   41.082866]  ep_insert+0x15d0/0x1b10
[   41.086563]  ? ep_poll+0x1190/0x1190
[   41.090250]  ? lock_release+0xda0/0xda0
[   41.094192]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   41.100042]  ? lock_downgrade+0x980/0x980
[   41.104159]  ? rcu_note_context_switch+0x710/0x710
[   41.109060]  ? __might_sleep+0x95/0x190
[   41.112999]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.117113]  ? __mutex_lock+0x16f/0x1a80
[   41.121137]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.125254]  ? lock_downgrade+0x980/0x980
[   41.129366]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.133489]  ? lock_release+0xda0/0xda0
[   41.137433]  ? __lock_is_held+0xbc/0x140
[   41.141472]  ? __fget+0x362/0x580
[   41.144898]  ? iterate_fd+0x3f0/0x3f0
[   41.148665]  ? find_held_lock+0x39/0x1d0
[   41.152703]  ? lock_downgrade+0x980/0x980
[   41.156818]  ? __might_fault+0xe0/0x1d0
[   41.160761]  ? __fget_light+0x29d/0x390
[   41.164702]  ? fget_raw+0x20/0x20
[   41.168122]  ? is_bpf_text_address+0xa4/0x120
[   41.172585]  ? kernel_text_address+0x102/0x140
[   41.177144]  ? __might_sleep+0x95/0x190
[   41.181082]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   41.186506]  SyS_epoll_ctl+0x12e4/0x1ab0
[   41.190533]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   41.194736]  ? save_stack+0xa3/0xd0
[   41.198340]  ? SyS_epoll_create+0x240/0x240
[   41.202630]  ? __lock_is_held+0xbc/0x140
[   41.206672]  ? __fd_install+0x288/0x740
[   41.210616]  ? get_unused_fd_flags+0x190/0x190
[   41.215163]  ? may_open_dev+0xe0/0xe0
[   41.218936]  ? rcu_pm_notify+0xc0/0xc0
[   41.222791]  ? putname+0xee/0x130
[   41.226215]  ? putname+0xee/0x130
[   41.229635]  ? rcu_read_lock_sched_held+0x108/0x120
[   41.234616]  ? kmem_cache_free+0x249/0x280
[   41.238817]  ? putname+0xf3/0x130
[   41.242240]  ? do_sys_open+0x320/0x6d0
[   41.246099]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   41.250910]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   41.255893]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   41.260621]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   41.265341] RIP: 0033:0x45f7d8
[   41.268495] RSP: 002b:000000c4202334b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   41.276165] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   41.283412] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   41.290646] RBP: 000000c420233720 R08: 0000000000000000 R09: 0000000000000000
[   41.297878] R10: 000000c4202334e4 R11: 0000000000000246 R12: 000000c421a079b9
[   41.305113] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   41.312900] Dumping ftrace buffer:
[   41.316468]    (ftrace buffer empty)
[   41.320144] Kernel Offset: disabled
[   41.323741] Rebooting in 86400 seconds..