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-6,10.128.0.11' (ECDSA) to the list of known hosts.
2017/12/04 14:29:00 fuzzer started
2017/12/04 14:29:00 dialing manager at 10.128.0.26:36183
syzkaller login: [   29.072989] WARNING: CPU: 1 PID: 3086 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   29.074247] Kernel panic - not syncing: panic_on_warn set ...
[   29.074247] 
[   29.075214] CPU: 1 PID: 3086 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   29.076183] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.077418] Call Trace:
[   29.077776]  dump_stack+0x194/0x257
[   29.078266]  ? arch_local_irq_restore+0x53/0x53
[   29.078892]  ? vsnprintf+0x1ed/0x1900
[   29.079408]  panic+0x1e4/0x41c
[   29.079840]  ? refcount_error_report+0x214/0x214
[   29.080475]  ? show_regs_print_info+0x65/0x65
[   29.081079]  ? __warn+0x1c1/0x200
[   29.081548]  ? __wake_up_common+0x433/0x770
[   29.082122]  __warn+0x1dc/0x200
[   29.082568]  ? __wake_up_common+0x433/0x770
[   29.083146]  report_bug+0x211/0x2d0
[   29.083642]  fixup_bug.part.11+0x37/0x80
[   29.084187]  do_error_trap+0x2d7/0x3e0
[   29.084714]  ? math_error+0x400/0x400
[   29.085224]  ? check_noncircular+0x20/0x20
[   29.085788]  ? find_held_lock+0x39/0x1d0
[   29.086341]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   29.086992]  do_invalid_op+0x1b/0x20
[   29.087510]  invalid_op+0x22/0x40
[   29.087974] RIP: 0010:__wake_up_common+0x433/0x770
[   29.088641] RSP: 0018:ffff8801c06974b0 EFLAGS: 00010046
[   29.089368] RAX: 0000000000000000 RBX: ffff8801cc054890 RCX: 0000000000000004
[   29.090321] RDX: 1ffffffff0bd9741 RSI: ffff8801cc0548a8 RDI: 0000000000000082
[   29.091272] RBP: ffff8801c06975b0 R08: 0000000000000000 R09: 0000000000000000
[   29.092259] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   29.093212] R13: ffff8801cc0548d0 R14: 0000000000000001 R15: ffff8801cc054930
[   29.100467]  ? __lock_is_held+0xbc/0x140
[   29.104495]  ? lock_release+0xda0/0xda0
[   29.108434]  ? do_wait_intr+0x3e0/0x3e0
[   29.112388]  ? __lock_is_held+0xbc/0x140
[   29.116424]  __wake_up_locked+0x11/0x20
[   29.120373]  ep_insert+0x15d0/0x1b10
[   29.124068]  ? ep_poll+0x1190/0x1190
[   29.127752]  ? lock_release+0xda0/0xda0
[   29.131693]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   29.137543]  ? lock_downgrade+0x980/0x980
[   29.141659]  ? rcu_note_context_switch+0x710/0x710
[   29.146557]  ? __might_sleep+0x95/0x190
[   29.150497]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.154611]  ? __mutex_lock+0x16f/0x1a80
[   29.158636]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.162749]  ? lock_downgrade+0x980/0x980
[   29.166863]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   29.170984]  ? lock_release+0xda0/0xda0
[   29.174926]  ? __lock_is_held+0xbc/0x140
[   29.178965]  ? __fget+0x362/0x580
[   29.182395]  ? iterate_fd+0x3f0/0x3f0
[   29.186164]  ? find_held_lock+0x39/0x1d0
[   29.190203]  ? lock_downgrade+0x980/0x980
[   29.194318]  ? __might_fault+0xe0/0x1d0
[   29.198265]  ? __fget_light+0x29d/0x390
[   29.202206]  ? fget_raw+0x20/0x20
[   29.205626]  ? is_bpf_text_address+0xa4/0x120
[   29.210097]  ? kernel_text_address+0x102/0x140
[   29.214648]  ? __might_sleep+0x95/0x190
[   29.218590]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   29.224014]  SyS_epoll_ctl+0x12e4/0x1ab0
[   29.228044]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   29.232245]  ? save_stack+0xa3/0xd0
[   29.235848]  ? SyS_epoll_create+0x240/0x240
[   29.240137]  ? __lock_is_held+0xbc/0x140
[   29.244178]  ? __fd_install+0x288/0x740
[   29.248119]  ? get_unused_fd_flags+0x190/0x190
[   29.252668]  ? may_open_dev+0xe0/0xe0
[   29.256441]  ? rcu_pm_notify+0xc0/0xc0
[   29.260296]  ? putname+0xee/0x130
[   29.263716]  ? putname+0xee/0x130
[   29.267136]  ? rcu_read_lock_sched_held+0x108/0x120
[   29.272122]  ? kmem_cache_free+0x249/0x280
[   29.276324]  ? putname+0xf3/0x130
[   29.279749]  ? do_sys_open+0x320/0x6d0
[   29.283609]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   29.288417]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   29.293402]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   29.298128]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   29.302847] RIP: 0033:0x45f7d8
[   29.306004] RSP: 002b:000000c42022b4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   29.313684] RAX: ffffffffffffffda RBX: 000000c42022b798 RCX: 000000000045f7d8
[   29.320918] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   29.328155] RBP: 000000c42022b718 R08: 0000000000000000 R09: 0000000000000000
[   29.335391] R10: 000000c42022b4e4 R11: 0000000000000246 R12: 000000c420383962
[   29.342627] R13: 0000000000000100 R14: ffffffffffffffff R15: 0000000000000100
[   29.350092] Dumping ftrace buffer:
[   29.353667]    (ftrace buffer empty)
[   29.357343] Kernel Offset: disabled
[   29.360939] Rebooting in 86400 seconds..