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-4,10.128.0.21' (ECDSA) to the list of known hosts.
2017/12/04 14:27:42 fuzzer started
2017/12/04 14:27:42 dialing manager at 10.128.0.26:36183
syzkaller login: [   32.086530] WARNING: CPU: 1 PID: 3089 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   32.087857] Kernel panic - not syncing: panic_on_warn set ...
[   32.087857] 
[   32.088855] CPU: 1 PID: 3089 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   32.089809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.091041] Call Trace:
[   32.091400]  dump_stack+0x194/0x257
[   32.091929]  ? arch_local_irq_restore+0x53/0x53
[   32.092557]  ? vsnprintf+0x1ed/0x1900
[   32.093095]  panic+0x1e4/0x41c
[   32.093528]  ? refcount_error_report+0x214/0x214
[   32.094164]  ? show_regs_print_info+0x65/0x65
[   32.094787]  ? __warn+0x1c1/0x200
[   32.095256]  ? __wake_up_common+0x433/0x770
[   32.095833]  __warn+0x1dc/0x200
[   32.096277]  ? __wake_up_common+0x433/0x770
[   32.096855]  report_bug+0x211/0x2d0
[   32.097350]  fixup_bug.part.11+0x37/0x80
[   32.097896]  do_error_trap+0x2d7/0x3e0
[   32.098421]  ? math_error+0x400/0x400
[   32.098935]  ? check_noncircular+0x20/0x20
[   32.099505]  ? find_held_lock+0x39/0x1d0
[   32.100055]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   32.100704]  do_invalid_op+0x1b/0x20
[   32.101232]  invalid_op+0x22/0x40
[   32.101754] RIP: 0010:__wake_up_common+0x433/0x770
[   32.102862] RSP: 0018:ffff8801cbd2f4b0 EFLAGS: 00010046
[   32.104425] RAX: 0000000000000000 RBX: ffff8801cbca1690 RCX: 0000000000000004
[   32.105723] RDX: 1ffffffff0bd9741 RSI: ffff8801cbca16a8 RDI: 0000000000000082
[   32.108996] RBP: ffff8801cbd2f5b0 R08: 0000000000000000 R09: 0000000000000000
[   32.116232] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   32.123468] R13: ffff8801cbca16d0 R14: 0000000000000001 R15: ffff8801cbca1730
[   32.130720]  ? __lock_is_held+0xbc/0x140
[   32.134748]  ? lock_release+0xda0/0xda0
[   32.138688]  ? do_wait_intr+0x3e0/0x3e0
[   32.142634]  ? __lock_is_held+0xbc/0x140
[   32.146669]  __wake_up_locked+0x11/0x20
[   32.150608]  ep_insert+0x15d0/0x1b10
[   32.154300]  ? ep_poll+0x1190/0x1190
[   32.157982]  ? lock_release+0xda0/0xda0
[   32.161922]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   32.167769]  ? lock_downgrade+0x980/0x980
[   32.171885]  ? rcu_note_context_switch+0x710/0x710
[   32.176784]  ? __might_sleep+0x95/0x190
[   32.180727]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.184842]  ? __mutex_lock+0x16f/0x1a80
[   32.188866]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.192980]  ? lock_downgrade+0x980/0x980
[   32.197094]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   32.201216]  ? lock_release+0xda0/0xda0
[   32.205161]  ? __lock_is_held+0xbc/0x140
[   32.209203]  ? __fget+0x362/0x580
[   32.212634]  ? iterate_fd+0x3f0/0x3f0
[   32.216407]  ? find_held_lock+0x39/0x1d0
[   32.220449]  ? lock_downgrade+0x980/0x980
[   32.224566]  ? __might_fault+0xe0/0x1d0
[   32.228510]  ? __fget_light+0x29d/0x390
[   32.232451]  ? fget_raw+0x20/0x20
[   32.235874]  ? is_bpf_text_address+0xa4/0x120
[   32.240338]  ? kernel_text_address+0x102/0x140
[   32.244890]  ? __might_sleep+0x95/0x190
[   32.248828]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   32.254252]  SyS_epoll_ctl+0x12e4/0x1ab0
[   32.258279]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   32.262480]  ? save_stack+0xa3/0xd0
[   32.266082]  ? SyS_epoll_create+0x240/0x240
[   32.270377]  ? __lock_is_held+0xbc/0x140
[   32.274417]  ? __fd_install+0x288/0x740
[   32.278359]  ? get_unused_fd_flags+0x190/0x190
[   32.282910]  ? may_open_dev+0xe0/0xe0
[   32.286682]  ? rcu_pm_notify+0xc0/0xc0
[   32.290539]  ? putname+0xee/0x130
[   32.293959]  ? putname+0xee/0x130
[   32.297378]  ? rcu_read_lock_sched_held+0x108/0x120
[   32.302361]  ? kmem_cache_free+0x249/0x280
[   32.306565]  ? putname+0xf3/0x130
[   32.309988]  ? do_sys_open+0x320/0x6d0
[   32.313849]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   32.318660]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.323645]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   32.328373]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   32.333092] RIP: 0033:0x45f7d8
[   32.336247] RSP: 002b:000000c4200454b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   32.343922] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   32.351164] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   32.358404] RBP: 000000c420045720 R08: 0000000000000000 R09: 0000000000000000
[   32.365639] R10: 000000c4200454e4 R11: 0000000000000246 R12: 000000c421a0b9b9
[   32.372873] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   32.380338] Dumping ftrace buffer:
[   32.383903]    (ftrace buffer empty)
[   32.387580] Kernel Offset: disabled
[   32.391174] Rebooting in 86400 seconds..