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-6,10.128.0.35' (ECDSA) to the list of known hosts.
2017/12/04 14:27:10 fuzzer started
2017/12/04 14:27:10 dialing manager at 10.128.0.26:36183
syzkaller login: [   26.084466] WARNING: CPU: 1 PID: 3085 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   26.085775] Kernel panic - not syncing: panic_on_warn set ...
[   26.085775] 
[   26.086744] CPU: 1 PID: 3085 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   26.087717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.089346] Call Trace:
[   26.089730]  dump_stack+0x194/0x257
[   26.090221]  ? arch_local_irq_restore+0x53/0x53
[   26.090870]  ? vsnprintf+0x1ed/0x1900
[   26.091388]  panic+0x1e4/0x41c
[   26.091821]  ? refcount_error_report+0x214/0x214
[   26.092455]  ? show_regs_print_info+0x65/0x65
[   26.093077]  ? __warn+0x1c1/0x200
[   26.093571]  ? __wake_up_common+0x433/0x770
[   26.094165]  __warn+0x1dc/0x200
[   26.094612]  ? __wake_up_common+0x433/0x770
[   26.095206]  report_bug+0x211/0x2d0
[   26.095752]  fixup_bug.part.11+0x37/0x80
[   26.096327]  do_error_trap+0x2d7/0x3e0
[   26.096871]  ? math_error+0x400/0x400
[   26.097397]  ? check_noncircular+0x20/0x20
[   26.097983]  ? find_held_lock+0x39/0x1d0
[   26.098567]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   26.099252]  do_invalid_op+0x1b/0x20
[   26.099785]  invalid_op+0x22/0x40
[   26.100261] RIP: 0010:__wake_up_common+0x433/0x770
[   26.100936] RSP: 0018:ffff8801cb9074b0 EFLAGS: 00010046
[   26.101667] RAX: 0000000000000000 RBX: ffff8801cd3db690 RCX: 0000000000000004
[   26.102676] RDX: 1ffffffff0bd9741 RSI: ffff8801cd3db6a8 RDI: 0000000000000082
[   26.103668] RBP: ffff8801cb9075b0 R08: 0000000000000000 R09: 0000000000000000
[   26.104645] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   26.111880] R13: ffff8801cd3db6d0 R14: 0000000000000001 R15: ffff8801cd3db730
[   26.119136]  ? __lock_is_held+0xbc/0x140
[   26.123165]  ? lock_release+0xda0/0xda0
[   26.127109]  ? do_wait_intr+0x3e0/0x3e0
[   26.131057]  ? __lock_is_held+0xbc/0x140
[   26.135096]  __wake_up_locked+0x11/0x20
[   26.139042]  ep_insert+0x15d0/0x1b10
[   26.142738]  ? ep_poll+0x1190/0x1190
[   26.146435]  ? lock_release+0xda0/0xda0
[   26.150377]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   26.156227]  ? lock_downgrade+0x980/0x980
[   26.160343]  ? rcu_note_context_switch+0x710/0x710
[   26.165243]  ? __might_sleep+0x95/0x190
[   26.169186]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.173302]  ? __mutex_lock+0x16f/0x1a80
[   26.177327]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.181446]  ? lock_downgrade+0x980/0x980
[   26.185559]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   26.189680]  ? lock_release+0xda0/0xda0
[   26.193622]  ? __lock_is_held+0xbc/0x140
[   26.197663]  ? __fget+0x362/0x580
[   26.201090]  ? iterate_fd+0x3f0/0x3f0
[   26.204857]  ? find_held_lock+0x39/0x1d0
[   26.208893]  ? lock_downgrade+0x980/0x980
[   26.213012]  ? __might_fault+0xe0/0x1d0
[   26.216964]  ? __fget_light+0x29d/0x390
[   26.220907]  ? fget_raw+0x20/0x20
[   26.224329]  ? is_bpf_text_address+0xa4/0x120
[   26.228792]  ? kernel_text_address+0x102/0x140
[   26.233351]  ? __might_sleep+0x95/0x190
[   26.237291]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   26.242716]  SyS_epoll_ctl+0x12e4/0x1ab0
[   26.246743]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   26.250951]  ? save_stack+0xa3/0xd0
[   26.254553]  ? SyS_epoll_create+0x240/0x240
[   26.258843]  ? __lock_is_held+0xbc/0x140
[   26.262887]  ? __fd_install+0x288/0x740
[   26.266830]  ? get_unused_fd_flags+0x190/0x190
[   26.271378]  ? may_open_dev+0xe0/0xe0
[   26.275156]  ? rcu_pm_notify+0xc0/0xc0
[   26.279023]  ? putname+0xee/0x130
[   26.282448]  ? putname+0xee/0x130
[   26.285870]  ? rcu_read_lock_sched_held+0x108/0x120
[   26.290857]  ? kmem_cache_free+0x249/0x280
[   26.295060]  ? putname+0xf3/0x130
[   26.298484]  ? do_sys_open+0x320/0x6d0
[   26.302346]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   26.307159]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   26.312144]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   26.316873]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   26.321594] RIP: 0033:0x45f7d8
[   26.324749] RSP: 002b:000000c4202374b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   26.332422] RAX: ffffffffffffffda RBX: 00000000015f9660 RCX: 000000000045f7d8
[   26.339659] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   26.346896] RBP: 000000c420237938 R08: 0000000000000000 R09: 0000000000000000
[   26.354136] R10: 000000c4202374e4 R11: 0000000000000246 R12: 000000c42046a26c
[   26.361377] R13: 0000000000000020 R14: ffffffffffffffff R15: 0000000000000020
[   26.369235] Dumping ftrace buffer:
[   26.372820]    (ftrace buffer empty)
[   26.376496] Kernel Offset: disabled
[   26.380094] Rebooting in 86400 seconds..