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-7,10.128.15.210' (ECDSA) to the list of known hosts.
2017/12/04 14:33:10 fuzzer started
2017/12/04 14:33:10 dialing manager at 10.128.0.26:36183
syzkaller login: [   41.147147] WARNING: CPU: 0 PID: 3088 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   41.148374] Kernel panic - not syncing: panic_on_warn set ...
[   41.148374] 
[   41.149375] CPU: 0 PID: 3088 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   41.150350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   41.151567] Call Trace:
[   41.151925]  dump_stack+0x194/0x257
[   41.152416]  ? arch_local_irq_restore+0x53/0x53
[   41.153042]  ? vsnprintf+0x1ed/0x1900
[   41.153556]  panic+0x1e4/0x41c
[   41.153989]  ? refcount_error_report+0x214/0x214
[   41.154619]  ? show_regs_print_info+0x65/0x65
[   41.155224]  ? __warn+0x1c1/0x200
[   41.155692]  ? __wake_up_common+0x433/0x770
[   41.156268]  __warn+0x1dc/0x200
[   41.156714]  ? __wake_up_common+0x433/0x770
[   41.157292]  report_bug+0x211/0x2d0
[   41.157791]  fixup_bug.part.11+0x37/0x80
[   41.158337]  do_error_trap+0x2d7/0x3e0
[   41.158862]  ? math_error+0x400/0x400
[   41.159373]  ? check_noncircular+0x20/0x20
[   41.159961]  ? find_held_lock+0x39/0x1d0
[   41.160511]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   41.161160]  do_invalid_op+0x1b/0x20
[   41.161673]  invalid_op+0x22/0x40
[   41.162139] RIP: 0010:__wake_up_common+0x433/0x770
[   41.162791] RSP: 0018:ffff8801cb4e74b0 EFLAGS: 00010046
[   41.163513] RAX: 0000000000000000 RBX: ffff8801cc12ab50 RCX: 0000000000000004
[   41.164463] RDX: 1ffffffff0bd9741 RSI: ffff8801cc12ab68 RDI: 0000000000000082
[   41.165414] RBP: ffff8801cb4e75b0 R08: 0000000000000000 R09: 0000000000000000
[   41.166365] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   41.167318] R13: ffff8801cc12ab90 R14: 0000000000000001 R15: ffff8801cc12abf0
[   41.174575]  ? __lock_is_held+0xbc/0x140
[   41.178602]  ? lock_release+0xda0/0xda0
[   41.182541]  ? do_wait_intr+0x3e0/0x3e0
[   41.186488]  ? __lock_is_held+0xbc/0x140
[   41.190523]  __wake_up_locked+0x11/0x20
[   41.194464]  ep_insert+0x15d0/0x1b10
[   41.198155]  ? ep_poll+0x1190/0x1190
[   41.201846]  ? lock_release+0xda0/0xda0
[   41.205788]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   41.211635]  ? lock_downgrade+0x980/0x980
[   41.215752]  ? rcu_note_context_switch+0x710/0x710
[   41.220654]  ? __might_sleep+0x95/0x190
[   41.224594]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.228711]  ? __mutex_lock+0x16f/0x1a80
[   41.232742]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.236858]  ? lock_downgrade+0x980/0x980
[   41.240973]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   41.245095]  ? lock_release+0xda0/0xda0
[   41.249037]  ? __lock_is_held+0xbc/0x140
[   41.253078]  ? __fget+0x362/0x580
[   41.256505]  ? iterate_fd+0x3f0/0x3f0
[   41.260273]  ? find_held_lock+0x39/0x1d0
[   41.264309]  ? lock_downgrade+0x980/0x980
[   41.268424]  ? __might_fault+0xe0/0x1d0
[   41.272367]  ? __fget_light+0x29d/0x390
[   41.276308]  ? fget_raw+0x20/0x20
[   41.279728]  ? is_bpf_text_address+0xa4/0x120
[   41.284194]  ? kernel_text_address+0x102/0x140
[   41.288755]  ? __might_sleep+0x95/0x190
[   41.292714]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   41.298164]  SyS_epoll_ctl+0x12e4/0x1ab0
[   41.302201]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   41.306411]  ? save_stack+0xa3/0xd0
[   41.310019]  ? SyS_epoll_create+0x240/0x240
[   41.314308]  ? __lock_is_held+0xbc/0x140
[   41.318350]  ? __fd_install+0x288/0x740
[   41.322294]  ? get_unused_fd_flags+0x190/0x190
[   41.326850]  ? may_open_dev+0xe0/0xe0
[   41.330624]  ? rcu_pm_notify+0xc0/0xc0
[   41.334480]  ? putname+0xee/0x130
[   41.337900]  ? putname+0xee/0x130
[   41.341319]  ? rcu_read_lock_sched_held+0x108/0x120
[   41.346303]  ? kmem_cache_free+0x249/0x280
[   41.350507]  ? putname+0xf3/0x130
[   41.353932]  ? do_sys_open+0x320/0x6d0
[   41.357792]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   41.362604]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   41.367586]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   41.372313]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   41.377031] RIP: 0033:0x45f7d8
[   41.380186] RSP: 002b:000000c42049b4b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   41.387861] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   41.395097] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   41.402331] RBP: 000000c42049b720 R08: 0000000000000000 R09: 0000000000000000
[   41.409564] R10: 000000c42049b4e4 R11: 0000000000000246 R12: 000000c4219ef9b9
[   41.416800] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   41.424227] Dumping ftrace buffer:
[   41.427799]    (ftrace buffer empty)
[   41.431477] Kernel Offset: disabled
[   41.435075] Rebooting in 86400 seconds..