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-2,10.128.15.192' (ECDSA) to the list of known hosts.
2017/12/04 14:31:51 fuzzer started
2017/12/04 14:31:51 dialing manager at 10.128.0.26:36183
syzkaller login: [   31.015095] WARNING: CPU: 1 PID: 3091 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   31.016370] Kernel panic - not syncing: panic_on_warn set ...
[   31.016370] 
[   31.017341] CPU: 1 PID: 3091 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   31.018293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.019528] Call Trace:
[   31.019903]  dump_stack+0x194/0x257
[   31.020400]  ? arch_local_irq_restore+0x53/0x53
[   31.021028]  ? vsnprintf+0x1ed/0x1900
[   31.021556]  panic+0x1e4/0x41c
[   31.022056]  ? refcount_error_report+0x214/0x214
[   31.022702]  ? show_regs_print_info+0x65/0x65
[   31.023309]  ? __warn+0x1c1/0x200
[   31.023781]  ? __wake_up_common+0x433/0x770
[   31.024359]  __warn+0x1dc/0x200
[   31.024807]  ? __wake_up_common+0x433/0x770
[   31.025412]  report_bug+0x211/0x2d0
[   31.025911]  fixup_bug.part.11+0x37/0x80
[   31.026468]  do_error_trap+0x2d7/0x3e0
[   31.026996]  ? math_error+0x400/0x400
[   31.027508]  ? check_noncircular+0x20/0x20
[   31.028079]  ? find_held_lock+0x39/0x1d0
[   31.028629]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   31.029283]  do_invalid_op+0x1b/0x20
[   31.029795]  invalid_op+0x22/0x40
[   31.030264] RIP: 0010:__wake_up_common+0x433/0x770
[   31.030917] RSP: 0018:ffff8801cc15f4b0 EFLAGS: 00010046
[   31.031630] RAX: 0000000000000000 RBX: ffff8801cc03bb10 RCX: 0000000000000004
[   31.032629] RDX: 1ffffffff0bd9741 RSI: ffff8801cc03bb28 RDI: 0000000000000082
[   31.033582] RBP: ffff8801cc15f5b0 R08: 0000000000000000 R09: 0000000000000000
[   31.034535] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   31.037106] R13: ffff8801cc03bb50 R14: 0000000000000001 R15: ffff8801cc03bbb0
[   31.044362]  ? __lock_is_held+0xbc/0x140
[   31.048392]  ? lock_release+0xda0/0xda0
[   31.052333]  ? do_wait_intr+0x3e0/0x3e0
[   31.056280]  ? __lock_is_held+0xbc/0x140
[   31.060325]  __wake_up_locked+0x11/0x20
[   31.064267]  ep_insert+0x15d0/0x1b10
[   31.067961]  ? ep_poll+0x1190/0x1190
[   31.071649]  ? lock_release+0xda0/0xda0
[   31.075593]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   31.081444]  ? lock_downgrade+0x980/0x980
[   31.085565]  ? rcu_note_context_switch+0x710/0x710
[   31.090467]  ? __might_sleep+0x95/0x190
[   31.094409]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   31.098524]  ? __mutex_lock+0x16f/0x1a80
[   31.102553]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   31.106671]  ? lock_downgrade+0x980/0x980
[   31.110790]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   31.114915]  ? lock_release+0xda0/0xda0
[   31.118862]  ? __lock_is_held+0xbc/0x140
[   31.122903]  ? __fget+0x362/0x580
[   31.126332]  ? iterate_fd+0x3f0/0x3f0
[   31.130101]  ? find_held_lock+0x39/0x1d0
[   31.134138]  ? lock_downgrade+0x980/0x980
[   31.138263]  ? __might_fault+0xe0/0x1d0
[   31.142209]  ? __fget_light+0x29d/0x390
[   31.146151]  ? fget_raw+0x20/0x20
[   31.149573]  ? is_bpf_text_address+0xa4/0x120
[   31.154037]  ? kernel_text_address+0x102/0x140
[   31.158588]  ? __might_sleep+0x95/0x190
[   31.162530]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   31.167957]  SyS_epoll_ctl+0x12e4/0x1ab0
[   31.171985]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   31.176188]  ? save_stack+0xa3/0xd0
[   31.179791]  ? SyS_epoll_create+0x240/0x240
[   31.184089]  ? __lock_is_held+0xbc/0x140
[   31.188132]  ? __fd_install+0x288/0x740
[   31.192084]  ? get_unused_fd_flags+0x190/0x190
[   31.196637]  ? may_open_dev+0xe0/0xe0
[   31.200417]  ? rcu_pm_notify+0xc0/0xc0
[   31.204275]  ? putname+0xee/0x130
[   31.207701]  ? putname+0xee/0x130
[   31.211136]  ? rcu_read_lock_sched_held+0x108/0x120
[   31.216122]  ? kmem_cache_free+0x249/0x280
[   31.220325]  ? putname+0xf3/0x130
[   31.223750]  ? do_sys_open+0x320/0x6d0
[   31.227611]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   31.232421]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.237406]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.242134]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   31.246859] RIP: 0033:0x45f7d8
[   31.250033] RSP: 002b:000000c4200494b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   31.257708] RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 000000000045f7d8
[   31.264945] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   31.272180] RBP: 00007fec08626d58 R08: 0000000000000000 R09: 0000000000000000
[   31.279422] R10: 000000c4200494e4 R11: 0000000000000246 R12: 0000000000000610
[   31.286659] R13: 00000000000000fb R14: 00000000000000fb R15: 0000000000000018
[   31.294143] Dumping ftrace buffer:
[   31.297735]    (ftrace buffer empty)
[   31.301416] Kernel Offset: disabled
[   31.305017] Rebooting in 86400 seconds..