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-7,10.128.15.218' (ECDSA) to the list of known hosts.
2017/12/04 14:31:11 fuzzer started
2017/12/04 14:31:11 dialing manager at 10.128.0.26:36183
syzkaller login: [   28.612254] WARNING: CPU: 0 PID: 3091 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   28.613468] Kernel panic - not syncing: panic_on_warn set ...
[   28.613468] 
[   28.614435] CPU: 0 PID: 3091 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   28.615405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   28.616622] Call Trace:
[   28.616977]  dump_stack+0x194/0x257
[   28.617467]  ? arch_local_irq_restore+0x53/0x53
[   28.618094]  ? vsnprintf+0x1ed/0x1900
[   28.618620]  panic+0x1e4/0x41c
[   28.619053]  ? refcount_error_report+0x214/0x214
[   28.619686]  ? show_regs_print_info+0x65/0x65
[   28.620292]  ? __warn+0x1c1/0x200
[   28.620760]  ? __wake_up_common+0x433/0x770
[   28.621338]  __warn+0x1dc/0x200
[   28.621784]  ? __wake_up_common+0x433/0x770
[   28.622363]  report_bug+0x211/0x2d0
[   28.622856]  fixup_bug.part.11+0x37/0x80
[   28.623400]  do_error_trap+0x2d7/0x3e0
[   28.623924]  ? math_error+0x400/0x400
[   28.624434]  ? check_noncircular+0x20/0x20
[   28.625029]  ? find_held_lock+0x39/0x1d0
[   28.625577]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   28.626246]  do_invalid_op+0x1b/0x20
[   28.626745]  invalid_op+0x22/0x40
[   28.627210] RIP: 0010:__wake_up_common+0x433/0x770
[   28.627861] RSP: 0018:ffff8801d39f74b0 EFLAGS: 00010046
[   28.628595] RAX: 0000000000000000 RBX: ffff8801ccd94650 RCX: 0000000000000004
[   28.629548] RDX: 1ffffffff0bd9741 RSI: ffff8801ccd94668 RDI: 0000000000000082
[   28.630500] RBP: ffff8801d39f75b0 R08: 0000000000000000 R09: 0000000000000000
[   28.631452] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   28.632673] R13: ffff8801ccd94690 R14: 0000000000000001 R15: ffff8801ccd946f0
[   28.639925]  ? __lock_is_held+0xbc/0x140
[   28.643955]  ? lock_release+0xda0/0xda0
[   28.647894]  ? do_wait_intr+0x3e0/0x3e0
[   28.651840]  ? __lock_is_held+0xbc/0x140
[   28.655875]  __wake_up_locked+0x11/0x20
[   28.659820]  ep_insert+0x15d0/0x1b10
[   28.663513]  ? ep_poll+0x1190/0x1190
[   28.667199]  ? lock_release+0xda0/0xda0
[   28.671138]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   28.676985]  ? lock_downgrade+0x980/0x980
[   28.681100]  ? rcu_note_context_switch+0x710/0x710
[   28.685998]  ? __might_sleep+0x95/0x190
[   28.689937]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.694052]  ? __mutex_lock+0x16f/0x1a80
[   28.698078]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.702192]  ? lock_downgrade+0x980/0x980
[   28.706303]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   28.710425]  ? lock_release+0xda0/0xda0
[   28.714365]  ? __lock_is_held+0xbc/0x140
[   28.718404]  ? __fget+0x362/0x580
[   28.721830]  ? iterate_fd+0x3f0/0x3f0
[   28.725596]  ? find_held_lock+0x39/0x1d0
[   28.729635]  ? lock_downgrade+0x980/0x980
[   28.733749]  ? __might_fault+0xe0/0x1d0
[   28.737695]  ? __fget_light+0x29d/0x390
[   28.741637]  ? fget_raw+0x20/0x20
[   28.745058]  ? is_bpf_text_address+0xa4/0x120
[   28.749523]  ? kernel_text_address+0x102/0x140
[   28.754082]  ? __might_sleep+0x95/0x190
[   28.758023]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   28.763451]  SyS_epoll_ctl+0x12e4/0x1ab0
[   28.767476]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   28.771679]  ? save_stack+0xa3/0xd0
[   28.775279]  ? SyS_epoll_create+0x240/0x240
[   28.779569]  ? __lock_is_held+0xbc/0x140
[   28.783608]  ? __fd_install+0x288/0x740
[   28.787549]  ? get_unused_fd_flags+0x190/0x190
[   28.792097]  ? may_open_dev+0xe0/0xe0
[   28.795872]  ? rcu_pm_notify+0xc0/0xc0
[   28.799730]  ? putname+0xee/0x130
[   28.803156]  ? putname+0xee/0x130
[   28.806577]  ? rcu_read_lock_sched_held+0x108/0x120
[   28.811559]  ? kmem_cache_free+0x249/0x280
[   28.815763]  ? putname+0xf3/0x130
[   28.819185]  ? do_sys_open+0x320/0x6d0
[   28.823048]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   28.827860]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   28.832843]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   28.837570]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   28.842290] RIP: 0033:0x45f7d8
[   28.845446] RSP: 002b:000000c4204c34b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   28.853124] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   28.860359] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   28.867603] RBP: 000000c4204c3720 R08: 0000000000000000 R09: 0000000000000000
[   28.874838] R10: 000000c4204c34e4 R11: 0000000000000246 R12: 000000c421a0b9b9
[   28.882076] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   28.889939] Dumping ftrace buffer:
[   28.893537]    (ftrace buffer empty)
[   28.897217] Kernel Offset: disabled
[   28.900815] Rebooting in 86400 seconds..