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-1,10.128.15.208' (ECDSA) to the list of known hosts.
2017/12/04 14:26:31 fuzzer started
2017/12/04 14:26:31 dialing manager at 10.128.0.26:36183
syzkaller login: [   34.212814] WARNING: CPU: 1 PID: 3085 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   34.214115] Kernel panic - not syncing: panic_on_warn set ...
[   34.214115] 
[   34.215101] CPU: 1 PID: 3085 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   34.216071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.217291] Call Trace:
[   34.217661]  dump_stack+0x194/0x257
[   34.218152]  ? arch_local_irq_restore+0x53/0x53
[   34.218897]  ? vsnprintf+0x1ed/0x1900
[   34.219414]  panic+0x1e4/0x41c
[   34.219862]  ? refcount_error_report+0x214/0x214
[   34.220513]  ? show_regs_print_info+0x65/0x65
[   34.221120]  ? __warn+0x1c1/0x200
[   34.221590]  ? __wake_up_common+0x433/0x770
[   34.222167]  __warn+0x1dc/0x200
[   34.222647]  ? __wake_up_common+0x433/0x770
[   34.223227]  report_bug+0x211/0x2d0
[   34.223739]  fixup_bug.part.11+0x37/0x80
[   34.224285]  do_error_trap+0x2d7/0x3e0
[   34.224812]  ? math_error+0x400/0x400
[   34.225341]  ? check_noncircular+0x20/0x20
[   34.225938]  ? find_held_lock+0x39/0x1d0
[   34.226488]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   34.227139]  do_invalid_op+0x1b/0x20
[   34.227639]  invalid_op+0x22/0x40
[   34.228108] RIP: 0010:__wake_up_common+0x433/0x770
[   34.228761] RSP: 0018:ffff8801cb8374b0 EFLAGS: 00010046
[   34.229472] RAX: 0000000000000000 RBX: ffff8801cbb6a410 RCX: 0000000000000004
[   34.230443] RDX: 1ffffffff0bd9741 RSI: ffff8801cbb6a428 RDI: 0000000000000082
[   34.231426] RBP: ffff8801cb8375b0 R08: 0000000000000000 R09: 0000000000000000
[   34.232395] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   34.236018] R13: ffff8801cbb6a450 R14: 0000000000000001 R15: ffff8801cbb6a4b0
[   34.243274]  ? __lock_is_held+0xbc/0x140
[   34.247304]  ? lock_release+0xda0/0xda0
[   34.251244]  ? do_wait_intr+0x3e0/0x3e0
[   34.255193]  ? __lock_is_held+0xbc/0x140
[   34.259239]  __wake_up_locked+0x11/0x20
[   34.263182]  ep_insert+0x15d0/0x1b10
[   34.266876]  ? ep_poll+0x1190/0x1190
[   34.270562]  ? lock_release+0xda0/0xda0
[   34.274509]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   34.280360]  ? lock_downgrade+0x980/0x980
[   34.284479]  ? rcu_note_context_switch+0x710/0x710
[   34.289380]  ? __might_sleep+0x95/0x190
[   34.293323]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.297440]  ? __mutex_lock+0x16f/0x1a80
[   34.301467]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.305583]  ? lock_downgrade+0x980/0x980
[   34.309697]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.313819]  ? lock_release+0xda0/0xda0
[   34.317761]  ? __lock_is_held+0xbc/0x140
[   34.321807]  ? __fget+0x362/0x580
[   34.325235]  ? iterate_fd+0x3f0/0x3f0
[   34.329002]  ? find_held_lock+0x39/0x1d0
[   34.333039]  ? lock_downgrade+0x980/0x980
[   34.337157]  ? __might_fault+0xe0/0x1d0
[   34.341102]  ? __fget_light+0x29d/0x390
[   34.345045]  ? fget_raw+0x20/0x20
[   34.348468]  ? is_bpf_text_address+0xa4/0x120
[   34.352929]  ? kernel_text_address+0x102/0x140
[   34.357480]  ? __might_sleep+0x95/0x190
[   34.361423]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   34.366850]  SyS_epoll_ctl+0x12e4/0x1ab0
[   34.370878]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   34.375080]  ? save_stack+0xa3/0xd0
[   34.378694]  ? SyS_epoll_create+0x240/0x240
[   34.382983]  ? __lock_is_held+0xbc/0x140
[   34.387023]  ? __fd_install+0x288/0x740
[   34.390967]  ? get_unused_fd_flags+0x190/0x190
[   34.395518]  ? may_open_dev+0xe0/0xe0
[   34.399295]  ? rcu_pm_notify+0xc0/0xc0
[   34.403153]  ? putname+0xee/0x130
[   34.406575]  ? putname+0xee/0x130
[   34.409996]  ? rcu_read_lock_sched_held+0x108/0x120
[   34.414982]  ? kmem_cache_free+0x249/0x280
[   34.419186]  ? putname+0xf3/0x130
[   34.422610]  ? do_sys_open+0x320/0x6d0
[   34.426473]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   34.431285]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   34.436271]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   34.441001]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   34.445722] RIP: 0033:0x45f7d8
[   34.448878] RSP: 002b:000000c4202754b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   34.456551] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 000000000045f7d8
[   34.463810] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   34.471046] RBP: 00007f630c86ad58 R08: 0000000000000000 R09: 0000000000000000
[   34.478284] R10: 000000c4202754e4 R11: 0000000000000246 R12: 0000000000000610
[   34.485522] R13: 00000000000000fb R14: 00000000000000fb R15: 0000000000000018
[   34.492995] Dumping ftrace buffer:
[   34.496569]    (ftrace buffer empty)
[   34.500249] Kernel Offset: disabled
[   34.503847] Rebooting in 86400 seconds..