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-4,10.128.0.47' (ECDSA) to the list of known hosts.
2017/12/04 14:31:31 fuzzer started
2017/12/04 14:31:31 dialing manager at 10.128.0.26:36183
syzkaller login: [   35.213698] WARNING: CPU: 1 PID: 3081 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   35.214984] Kernel panic - not syncing: panic_on_warn set ...
[   35.214984] 
[   35.215964] CPU: 1 PID: 3081 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   35.216945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   35.218162] Call Trace:
[   35.218522]  dump_stack+0x194/0x257
[   35.219015]  ? arch_local_irq_restore+0x53/0x53
[   35.219642]  ? vsnprintf+0x1ed/0x1900
[   35.220156]  panic+0x1e4/0x41c
[   35.220590]  ? refcount_error_report+0x214/0x214
[   35.221224]  ? show_regs_print_info+0x65/0x65
[   35.221830]  ? __warn+0x1c1/0x200
[   35.222300]  ? __wake_up_common+0x433/0x770
[   35.222988]  __warn+0x1dc/0x200
[   35.223431]  ? __wake_up_common+0x433/0x770
[   35.224011]  report_bug+0x211/0x2d0
[   35.224507]  fixup_bug.part.11+0x37/0x80
[   35.225053]  do_error_trap+0x2d7/0x3e0
[   35.225579]  ? math_error+0x400/0x400
[   35.226091]  ? check_noncircular+0x20/0x20
[   35.226662]  ? find_held_lock+0x39/0x1d0
[   35.227226]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   35.227877]  do_invalid_op+0x1b/0x20
[   35.228375]  invalid_op+0x22/0x40
[   35.228842] RIP: 0010:__wake_up_common+0x433/0x770
[   35.229495] RSP: 0018:ffff8801cd79f4b0 EFLAGS: 00010046
[   35.230206] RAX: 0000000000000000 RBX: ffff8801cda54dd0 RCX: 0000000000000004
[   35.231161] RDX: 1ffffffff0bd9741 RSI: ffff8801cda54de8 RDI: 0000000000000082
[   35.232132] RBP: ffff8801cd79f5b0 R08: 0000000000000000 R09: 0000000000000000
[   35.233084] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   35.234048] R13: ffff8801cda54e10 R14: 0000000000000001 R15: ffff8801cda54e70
[   35.241308]  ? __lock_is_held+0xbc/0x140
[   35.245338]  ? lock_release+0xda0/0xda0
[   35.249294]  ? do_wait_intr+0x3e0/0x3e0
[   35.253245]  ? __lock_is_held+0xbc/0x140
[   35.257283]  __wake_up_locked+0x11/0x20
[   35.261227]  ep_insert+0x15d0/0x1b10
[   35.264928]  ? ep_poll+0x1190/0x1190
[   35.268619]  ? lock_release+0xda0/0xda0
[   35.272565]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   35.278416]  ? lock_downgrade+0x980/0x980
[   35.282535]  ? rcu_note_context_switch+0x710/0x710
[   35.287434]  ? __might_sleep+0x95/0x190
[   35.291377]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   35.295497]  ? __mutex_lock+0x16f/0x1a80
[   35.299524]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   35.303643]  ? lock_downgrade+0x980/0x980
[   35.307757]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   35.311881]  ? lock_release+0xda0/0xda0
[   35.315829]  ? __lock_is_held+0xbc/0x140
[   35.319872]  ? __fget+0x362/0x580
[   35.323302]  ? iterate_fd+0x3f0/0x3f0
[   35.327070]  ? find_held_lock+0x39/0x1d0
[   35.331109]  ? lock_downgrade+0x980/0x980
[   35.335231]  ? __might_fault+0xe0/0x1d0
[   35.339178]  ? __fget_light+0x29d/0x390
[   35.343125]  ? fget_raw+0x20/0x20
[   35.346548]  ? is_bpf_text_address+0xa4/0x120
[   35.351013]  ? kernel_text_address+0x102/0x140
[   35.355567]  ? __might_sleep+0x95/0x190
[   35.359513]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   35.364948]  SyS_epoll_ctl+0x12e4/0x1ab0
[   35.368981]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   35.373185]  ? save_stack+0xa3/0xd0
[   35.376789]  ? SyS_epoll_create+0x240/0x240
[   35.381079]  ? __lock_is_held+0xbc/0x140
[   35.385121]  ? __fd_install+0x288/0x740
[   35.389067]  ? get_unused_fd_flags+0x190/0x190
[   35.393615]  ? may_open_dev+0xe0/0xe0
[   35.397390]  ? rcu_pm_notify+0xc0/0xc0
[   35.401246]  ? putname+0xee/0x130
[   35.404672]  ? putname+0xee/0x130
[   35.408091]  ? rcu_read_lock_sched_held+0x108/0x120
[   35.413075]  ? kmem_cache_free+0x249/0x280
[   35.417279]  ? putname+0xf3/0x130
[   35.420708]  ? do_sys_open+0x320/0x6d0
[   35.424574]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   35.429386]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   35.434379]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   35.439120]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   35.443844] RIP: 0033:0x45f7d8
[   35.447003] RSP: 002b:000000c4202f14b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   35.454680] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   35.461916] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   35.469152] RBP: 000000c4202f1720 R08: 0000000000000000 R09: 0000000000000000
[   35.476390] R10: 000000c4202f14e4 R11: 0000000000000246 R12: 000000c4219c59b9
[   35.483631] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   35.491108] Dumping ftrace buffer:
[   35.494678]    (ftrace buffer empty)
[   35.498366] Kernel Offset: disabled
[   35.501968] Rebooting in 86400 seconds..