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-2,10.128.15.201' (ECDSA) to the list of known hosts.
2017/12/04 14:33:40 fuzzer started
2017/12/04 14:33:40 dialing manager at 10.128.0.26:36183
syzkaller login: [   28.459798] WARNING: CPU: 1 PID: 3086 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   28.461079] Kernel panic - not syncing: panic_on_warn set ...
[   28.461079] 
[   28.462053] CPU: 1 PID: 3086 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   28.463006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.464260] Call Trace:
[   28.464621]  dump_stack+0x194/0x257
[   28.465112]  ? arch_local_irq_restore+0x53/0x53
[   28.465741]  ? vsnprintf+0x1ed/0x1900
[   28.466296]  panic+0x1e4/0x41c
[   28.466741]  ? refcount_error_report+0x214/0x214
[   28.467446]  ? show_regs_print_info+0x65/0x65
[   28.468080]  ? __warn+0x1c1/0x200
[   28.468562]  ? __wake_up_common+0x433/0x770
[   28.469138]  __warn+0x1dc/0x200
[   28.469581]  ? __wake_up_common+0x433/0x770
[   28.470221]  report_bug+0x211/0x2d0
[   28.470717]  fixup_bug.part.11+0x37/0x80
[   28.471299]  do_error_trap+0x2d7/0x3e0
[   28.471825]  ? math_error+0x400/0x400
[   28.472339]  ? check_noncircular+0x20/0x20
[   28.472909]  ? find_held_lock+0x39/0x1d0
[   28.473456]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   28.474152]  do_invalid_op+0x1b/0x20
[   28.474653]  invalid_op+0x22/0x40
[   28.475135] RIP: 0010:__wake_up_common+0x433/0x770
[   28.475798] RSP: 0018:ffff8801cb8f74b0 EFLAGS: 00010046
[   28.476508] RAX: 0000000000000000 RBX: ffff8801cc2295d0 RCX: 0000000000000004
[   28.477486] RDX: 1ffffffff0bd9741 RSI: ffff8801cc2295e8 RDI: 0000000000000082
[   28.478438] RBP: ffff8801cb8f75b0 R08: 0000000000000000 R09: 0000000000000000
[   28.479405] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   28.483177] R13: ffff8801cc229610 R14: 0000000000000001 R15: ffff8801cc229670
[   28.490439]  ? __lock_is_held+0xbc/0x140
[   28.494468]  ? lock_release+0xda0/0xda0
[   28.498409]  ? do_wait_intr+0x3e0/0x3e0
[   28.502354]  ? __lock_is_held+0xbc/0x140
[   28.506392]  __wake_up_locked+0x11/0x20
[   28.510335]  ep_insert+0x15d0/0x1b10
[   28.514027]  ? ep_poll+0x1190/0x1190
[   28.517711]  ? lock_release+0xda0/0xda0
[   28.521657]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   28.527506]  ? lock_downgrade+0x980/0x980
[   28.531623]  ? rcu_note_context_switch+0x710/0x710
[   28.536527]  ? __might_sleep+0x95/0x190
[   28.540469]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.544583]  ? __mutex_lock+0x16f/0x1a80
[   28.548607]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.552721]  ? lock_downgrade+0x980/0x980
[   28.556836]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.560963]  ? lock_release+0xda0/0xda0
[   28.564906]  ? __lock_is_held+0xbc/0x140
[   28.568961]  ? __fget+0x362/0x580
[   28.572481]  ? iterate_fd+0x3f0/0x3f0
[   28.576247]  ? find_held_lock+0x39/0x1d0
[   28.580283]  ? lock_downgrade+0x980/0x980
[   28.584398]  ? __might_fault+0xe0/0x1d0
[   28.588342]  ? __fget_light+0x29d/0x390
[   28.592284]  ? fget_raw+0x20/0x20
[   28.595704]  ? is_bpf_text_address+0xa4/0x120
[   28.600167]  ? kernel_text_address+0x102/0x140
[   28.604726]  ? __might_sleep+0x95/0x190
[   28.608669]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   28.614103]  SyS_epoll_ctl+0x12e4/0x1ab0
[   28.618131]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   28.622332]  ? save_stack+0xa3/0xd0
[   28.625940]  ? SyS_epoll_create+0x240/0x240
[   28.630233]  ? __lock_is_held+0xbc/0x140
[   28.634279]  ? __fd_install+0x288/0x740
[   28.638221]  ? get_unused_fd_flags+0x190/0x190
[   28.642865]  ? may_open_dev+0xe0/0xe0
[   28.646640]  ? rcu_pm_notify+0xc0/0xc0
[   28.650494]  ? putname+0xee/0x130
[   28.653915]  ? putname+0xee/0x130
[   28.657332]  ? rcu_read_lock_sched_held+0x108/0x120
[   28.662316]  ? kmem_cache_free+0x249/0x280
[   28.666517]  ? putname+0xf3/0x130
[   28.669942]  ? do_sys_open+0x320/0x6d0
[   28.673802]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   28.678612]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   28.684010]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   28.688740]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   28.693460] RIP: 0033:0x45f7d8
[   28.696616] RSP: 002b:000000c4204054b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   28.704288] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   28.711522] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   28.718756] RBP: 000000c420405720 R08: 0000000000000000 R09: 0000000000000000
[   28.725990] R10: 000000c4204054e4 R11: 0000000000000246 R12: 000000c4219f39b9
[   28.733228] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   28.740664] Dumping ftrace buffer:
[   28.744237]    (ftrace buffer empty)
[   28.747915] Kernel Offset: disabled
[   28.751510] Rebooting in 86400 seconds..