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-6,10.128.15.213' (ECDSA) to the list of known hosts.
2017/12/04 14:33:05 fuzzer started
2017/12/04 14:33:05 dialing manager at 10.128.0.26:36183
syzkaller login: [   28.050782] WARNING: CPU: 0 PID: 3083 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   28.052119] Kernel panic - not syncing: panic_on_warn set ...
[   28.052119] 
[   28.053104] CPU: 0 PID: 3083 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   28.054086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.055332] Call Trace:
[   28.055689]  dump_stack+0x194/0x257
[   28.056210]  ? arch_local_irq_restore+0x53/0x53
[   28.056837]  ? vsnprintf+0x1ed/0x1900
[   28.057352]  panic+0x1e4/0x41c
[   28.057785]  ? refcount_error_report+0x214/0x214
[   28.058418]  ? show_regs_print_info+0x65/0x65
[   28.059025]  ? __warn+0x1c1/0x200
[   28.059494]  ? __wake_up_common+0x433/0x770
[   28.060085]  __warn+0x1dc/0x200
[   28.060533]  ? __wake_up_common+0x433/0x770
[   28.061113]  report_bug+0x211/0x2d0
[   28.061608]  fixup_bug.part.11+0x37/0x80
[   28.062152]  do_error_trap+0x2d7/0x3e0
[   28.062679]  ? math_error+0x400/0x400
[   28.063191]  ? check_noncircular+0x20/0x20
[   28.063754]  ? find_held_lock+0x39/0x1d0
[   28.064308]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   28.065003]  do_invalid_op+0x1b/0x20
[   28.065503]  invalid_op+0x22/0x40
[   28.065968] RIP: 0010:__wake_up_common+0x433/0x770
[   28.066620] RSP: 0018:ffff8801cc98f4b0 EFLAGS: 00010046
[   28.067330] RAX: 0000000000000000 RBX: ffff8801cdf97610 RCX: 0000000000000004
[   28.068282] RDX: 1ffffffff0bd9741 RSI: ffff8801cdf97628 RDI: 0000000000000082
[   28.069237] RBP: ffff8801cc98f5b0 R08: 0000000000000000 R09: 0000000000000000
[   28.070209] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   28.071249] R13: ffff8801cdf97650 R14: 0000000000000001 R15: ffff8801cdf976b0
[   28.078507]  ? __lock_is_held+0xbc/0x140
[   28.082538]  ? lock_release+0xda0/0xda0
[   28.086478]  ? do_wait_intr+0x3e0/0x3e0
[   28.090423]  ? __lock_is_held+0xbc/0x140
[   28.094458]  __wake_up_locked+0x11/0x20
[   28.098399]  ep_insert+0x15d0/0x1b10
[   28.102094]  ? ep_poll+0x1190/0x1190
[   28.105780]  ? lock_release+0xda0/0xda0
[   28.109722]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   28.115570]  ? lock_downgrade+0x980/0x980
[   28.119705]  ? rcu_note_context_switch+0x710/0x710
[   28.124615]  ? __might_sleep+0x95/0x190
[   28.128557]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.132671]  ? __mutex_lock+0x16f/0x1a80
[   28.136696]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.140812]  ? lock_downgrade+0x980/0x980
[   28.144925]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.149049]  ? lock_release+0xda0/0xda0
[   28.152993]  ? __lock_is_held+0xbc/0x140
[   28.157035]  ? __fget+0x362/0x580
[   28.160464]  ? iterate_fd+0x3f0/0x3f0
[   28.164234]  ? find_held_lock+0x39/0x1d0
[   28.168273]  ? lock_downgrade+0x980/0x980
[   28.172389]  ? __might_fault+0xe0/0x1d0
[   28.176333]  ? __fget_light+0x29d/0x390
[   28.180274]  ? fget_raw+0x20/0x20
[   28.183696]  ? is_bpf_text_address+0xa4/0x120
[   28.188157]  ? kernel_text_address+0x102/0x140
[   28.192710]  ? __might_sleep+0x95/0x190
[   28.196654]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   28.202080]  SyS_epoll_ctl+0x12e4/0x1ab0
[   28.206108]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   28.210326]  ? save_stack+0xa3/0xd0
[   28.213930]  ? SyS_epoll_create+0x240/0x240
[   28.218218]  ? __lock_is_held+0xbc/0x140
[   28.222272]  ? __fd_install+0x288/0x740
[   28.226215]  ? get_unused_fd_flags+0x190/0x190
[   28.230765]  ? may_open_dev+0xe0/0xe0
[   28.234540]  ? rcu_pm_notify+0xc0/0xc0
[   28.238399]  ? putname+0xee/0x130
[   28.241821]  ? putname+0xee/0x130
[   28.245242]  ? rcu_read_lock_sched_held+0x108/0x120
[   28.250230]  ? kmem_cache_free+0x249/0x280
[   28.254437]  ? putname+0xf3/0x130
[   28.257859]  ? do_sys_open+0x320/0x6d0
[   28.261720]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   28.266531]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   28.271517]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   28.276249]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   28.280970] RIP: 0033:0x45f7d8
[   28.284126] RSP: 002b:000000c4204c34b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   28.291804] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   28.299038] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   28.306275] RBP: 000000c4204c3720 R08: 0000000000000000 R09: 0000000000000000
[   28.313511] R10: 000000c4204c34e4 R11: 0000000000000246 R12: 000000c421a119b9
[   28.320748] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   28.328206] Dumping ftrace buffer:
[   28.331783]    (ftrace buffer empty)
[   28.335460] Kernel Offset: disabled
[   28.339059] Rebooting in 86400 seconds..