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-8,10.128.0.27' (ECDSA) to the list of known hosts.
2017/12/04 14:28:22 fuzzer started
2017/12/04 14:28:22 dialing manager at 10.128.0.26:36183
syzkaller login: [   33.116905] WARNING: CPU: 0 PID: 3092 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   33.118289] Kernel panic - not syncing: panic_on_warn set ...
[   33.118289] 
[   33.119294] CPU: 0 PID: 3092 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   33.120246] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   33.121465] Call Trace:
[   33.121840]  dump_stack+0x194/0x257
[   33.122343]  ? arch_local_irq_restore+0x53/0x53
[   33.122971]  ? vsnprintf+0x1ed/0x1900
[   33.123488]  panic+0x1e4/0x41c
[   33.123922]  ? refcount_error_report+0x214/0x214
[   33.124560]  ? show_regs_print_info+0x65/0x65
[   33.125168]  ? __warn+0x1c1/0x200
[   33.125661]  ? __wake_up_common+0x433/0x770
[   33.126240]  __warn+0x1dc/0x200
[   33.126684]  ? __wake_up_common+0x433/0x770
[   33.127263]  report_bug+0x211/0x2d0
[   33.127794]  fixup_bug.part.11+0x37/0x80
[   33.128341]  do_error_trap+0x2d7/0x3e0
[   33.128885]  ? math_error+0x400/0x400
[   33.129396]  ? check_noncircular+0x20/0x20
[   33.129967]  ? find_held_lock+0x39/0x1d0
[   33.130517]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   33.131181]  do_invalid_op+0x1b/0x20
[   33.131693]  invalid_op+0x22/0x40
[   33.132177] RIP: 0010:__wake_up_common+0x433/0x770
[   33.132830] RSP: 0018:ffff8801cbfff4b0 EFLAGS: 00010046
[   33.133559] RAX: 0000000000000000 RBX: ffff8801cd702610 RCX: 0000000000000004
[   33.134529] RDX: 1ffffffff0bd9741 RSI: ffff8801cd702628 RDI: 0000000000000082
[   33.135487] RBP: ffff8801cbfff5b0 R08: 0000000000000000 R09: 0000000000000000
[   33.136461] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   33.139645] R13: ffff8801cd702650 R14: 0000000000000001 R15: ffff8801cd7026b0
[   33.146902]  ? __lock_is_held+0xbc/0x140
[   33.150935]  ? lock_release+0xda0/0xda0
[   33.155225]  ? do_wait_intr+0x3e0/0x3e0
[   33.159172]  ? __lock_is_held+0xbc/0x140
[   33.163208]  __wake_up_locked+0x11/0x20
[   33.167150]  ep_insert+0x15d0/0x1b10
[   33.170844]  ? ep_poll+0x1190/0x1190
[   33.174522]  ? osq_lock+0xed0/0xed0
[   33.178121]  ? lock_release+0xda0/0xda0
[   33.182063]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   33.187916]  ? rcu_note_context_switch+0x710/0x710
[   33.192818]  ? __might_sleep+0x95/0x190
[   33.196764]  ? __mutex_lock+0x113b/0x1a80
[   33.200882]  ? lock_downgrade+0x980/0x980
[   33.204997]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   33.209121]  ? lock_release+0xda0/0xda0
[   33.213066]  ? __lock_is_held+0xbc/0x140
[   33.217109]  ? __fget+0x362/0x580
[   33.220534]  ? __hrtimer_init+0x1f0/0x1f0
[   33.224656]  ? iterate_fd+0x3f0/0x3f0
[   33.228425]  ? find_held_lock+0x39/0x1d0
[   33.232465]  ? lock_downgrade+0x980/0x980
[   33.236582]  ? __might_fault+0xe0/0x1d0
[   33.240526]  ? __fget_light+0x29d/0x390
[   33.244473]  ? fget_raw+0x20/0x20
[   33.247907]  ? __might_sleep+0x95/0x190
[   33.251851]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   33.257278]  SyS_epoll_ctl+0x12e4/0x1ab0
[   33.261306]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   33.265519]  ? SyS_epoll_create+0x240/0x240
[   33.269818]  ? SyS_futex+0x2d3/0x390
[   33.273514]  ? pvclock_read_flags+0x160/0x160
[   33.277980]  ? __might_fault+0xe0/0x1d0
[   33.281926]  ? ktime_get+0x15c/0x3a0
[   33.285614]  ? kvm_clock_get_cycles+0x25/0x30
[   33.290080]  ? ktime_get+0x26f/0x3a0
[   33.293767]  ? ktime_get_resolution_ns+0x300/0x300
[   33.298663]  ? __might_sleep+0x95/0x190
[   33.302612]  ? kasan_check_write+0x14/0x20
[   33.306818]  ? SyS_futex+0x269/0x390
[   33.310504]  ? do_futex+0x2280/0x2280
[   33.314273]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   33.319085]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   33.324073]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   33.328815]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   33.333542] RIP: 0033:0x45f7d8
[   33.336700] RSP: 002b:000000c4201ef4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   33.344375] RAX: ffffffffffffffda RBX: 00007eff22f48700 RCX: 000000000045f7d8
[   33.351615] RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000004
[   33.358853] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
[   33.366102] R10: 000000c4201ef4e4 R11: 0000000000000246 R12: 00007eff2474ab80
[   33.373340] R13: 00007eff22f489c0 R14: 00007eff26878040 R15: 0000000000000003
[   33.380823] Dumping ftrace buffer:
[   33.384471]    (ftrace buffer empty)
[   33.388159] Kernel Offset: disabled
[   33.391767] Rebooting in 86400 seconds..