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-2,10.128.0.14' (ECDSA) to the list of known hosts.
2017/12/04 14:29:44 fuzzer started
2017/12/04 14:29:44 dialing manager at 10.128.0.26:36183
syzkaller login: [   41.835863] WARNING: CPU: 1 PID: 3093 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   41.837174] Kernel panic - not syncing: panic_on_warn set ...
[   41.837174] 
[   41.838193] CPU: 1 PID: 3093 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   41.839147] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.840368] Call Trace:
[   41.840744]  dump_stack+0x194/0x257
[   41.841248]  ? arch_local_irq_restore+0x53/0x53
[   41.841894]  ? vsnprintf+0x1ed/0x1900
[   41.842413]  panic+0x1e4/0x41c
[   41.842847]  ? refcount_error_report+0x214/0x214
[   41.843534]  ? show_regs_print_info+0x65/0x65
[   41.844141]  ? __warn+0x1c1/0x200
[   41.844623]  ? __wake_up_common+0x433/0x770
[   41.845200]  __warn+0x1dc/0x200
[   41.845674]  ? __wake_up_common+0x433/0x770
[   41.846253]  report_bug+0x211/0x2d0
[   41.846765]  fixup_bug.part.11+0x37/0x80
[   41.847313]  do_error_trap+0x2d7/0x3e0
[   41.847843]  ? math_error+0x400/0x400
[   41.848369]  ? check_noncircular+0x20/0x20
[   41.848939]  ? find_held_lock+0x39/0x1d0
[   41.849489]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   41.850141]  do_invalid_op+0x1b/0x20
[   41.850645]  invalid_op+0x22/0x40
[   41.851112] RIP: 0010:__wake_up_common+0x433/0x770
[   41.851778] RSP: 0018:ffff8801d575f4b0 EFLAGS: 00010046
[   41.852490] RAX: 0000000000000000 RBX: ffff8801cb8e80d0 RCX: 0000000000000004
[   41.853443] RDX: 1ffffffff0bd9741 RSI: ffff8801cb8e80e8 RDI: 0000000000000082
[   41.854408] RBP: ffff8801d575f5b0 R08: 0000000000000000 R09: 0000000000000000
[   41.855361] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   41.856648] R13: ffff8801cb8e8110 R14: 0000000000000001 R15: ffff8801cb8e8170
[   41.863905]  ? __lock_is_held+0xbc/0x140
[   41.867937]  ? lock_release+0xda0/0xda0
[   41.871881]  ? do_wait_intr+0x3e0/0x3e0
[   41.875828]  ? __lock_is_held+0xbc/0x140
[   41.879864]  __wake_up_locked+0x11/0x20
[   41.883809]  ep_insert+0x15d0/0x1b10
[   41.887505]  ? ep_poll+0x1190/0x1190
[   41.891192]  ? lock_release+0xda0/0xda0
[   41.895137]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   41.900987]  ? lock_downgrade+0x980/0x980
[   41.905108]  ? rcu_note_context_switch+0x710/0x710
[   41.910012]  ? __might_sleep+0x95/0x190
[   41.913955]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.918073]  ? __mutex_lock+0x16f/0x1a80
[   41.922100]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.926217]  ? lock_downgrade+0x980/0x980
[   41.930333]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.934455]  ? lock_release+0xda0/0xda0
[   41.938399]  ? __lock_is_held+0xbc/0x140
[   41.942444]  ? __fget+0x362/0x580
[   41.945876]  ? iterate_fd+0x3f0/0x3f0
[   41.949645]  ? find_held_lock+0x39/0x1d0
[   41.953684]  ? lock_downgrade+0x980/0x980
[   41.957803]  ? __might_fault+0xe0/0x1d0
[   41.961748]  ? __fget_light+0x29d/0x390
[   41.965695]  ? fget_raw+0x20/0x20
[   41.969120]  ? is_bpf_text_address+0xa4/0x120
[   41.973589]  ? kernel_text_address+0x102/0x140
[   41.978144]  ? __might_sleep+0x95/0x190
[   41.982092]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   41.987518]  SyS_epoll_ctl+0x12e4/0x1ab0
[   41.991546]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   41.995753]  ? save_stack+0xa3/0xd0
[   41.999359]  ? SyS_epoll_create+0x240/0x240
[   42.003650]  ? __lock_is_held+0xbc/0x140
[   42.007694]  ? __fd_install+0x288/0x740
[   42.011640]  ? get_unused_fd_flags+0x190/0x190
[   42.016194]  ? may_open_dev+0xe0/0xe0
[   42.019971]  ? rcu_pm_notify+0xc0/0xc0
[   42.023829]  ? putname+0xee/0x130
[   42.027252]  ? putname+0xee/0x130
[   42.030676]  ? rcu_read_lock_sched_held+0x108/0x120
[   42.035665]  ? kmem_cache_free+0x249/0x280
[   42.039958]  ? putname+0xf3/0x130
[   42.043384]  ? do_sys_open+0x320/0x6d0
[   42.047250]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   42.052067]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   42.057054]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   42.061785]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   42.066514] RIP: 0033:0x45f7d8
[   42.069673] RSP: 002b:000000c4201dd4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   42.077349] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   42.084585] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   42.091823] RBP: 000000c4201dd720 R08: 0000000000000000 R09: 0000000000000000
[   42.099074] R10: 000000c4201dd4e4 R11: 0000000000000246 R12: 000000c421a019b9
[   42.106314] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   42.113817] Dumping ftrace buffer:
[   42.117407]    (ftrace buffer empty)
[   42.121093] Kernel Offset: disabled
[   42.124692] Rebooting in 86400 seconds..