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-5,10.128.15.206' (ECDSA) to the list of known hosts.
2017/12/04 14:28:43 fuzzer started
2017/12/04 14:28:43 dialing manager at 10.128.0.26:36183
syzkaller login: [   40.378685] WARNING: CPU: 0 PID: 3089 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   40.379995] Kernel panic - not syncing: panic_on_warn set ...
[   40.379995] 
[   40.381026] CPU: 0 PID: 3089 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   40.381998] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.383216] Call Trace:
[   40.383586]  dump_stack+0x194/0x257
[   40.384080]  ? arch_local_irq_restore+0x53/0x53
[   40.384723]  ? vsnprintf+0x1ed/0x1900
[   40.385262]  panic+0x1e4/0x41c
[   40.385696]  ? refcount_error_report+0x214/0x214
[   40.386346]  ? show_regs_print_info+0x65/0x65
[   40.386954]  ? __warn+0x1c1/0x200
[   40.387461]  ? __wake_up_common+0x433/0x770
[   40.388037]  __warn+0x1dc/0x200
[   40.388480]  ? __wake_up_common+0x433/0x770
[   40.389060]  report_bug+0x211/0x2d0
[   40.389566]  fixup_bug.part.11+0x37/0x80
[   40.390113]  do_error_trap+0x2d7/0x3e0
[   40.390639]  ? math_error+0x400/0x400
[   40.391152]  ? check_noncircular+0x20/0x20
[   40.391723]  ? find_held_lock+0x39/0x1d0
[   40.392271]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   40.392924]  do_invalid_op+0x1b/0x20
[   40.393436]  invalid_op+0x22/0x40
[   40.393922] RIP: 0010:__wake_up_common+0x433/0x770
[   40.394574] RSP: 0018:ffff8801cbe7f4b0 EFLAGS: 00010046
[   40.395289] RAX: 0000000000000000 RBX: ffff8801cd518110 RCX: 0000000000000004
[   40.396241] RDX: 1ffffffff0bd9741 RSI: ffff8801cd518128 RDI: 0000000000000082
[   40.397230] RBP: ffff8801cbe7f5b0 R08: 0000000000000000 R09: 0000000000000000
[   40.398204] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   40.399167] R13: ffff8801cd518150 R14: 0000000000000001 R15: ffff8801cd5181b0
[   40.406427]  ? __lock_is_held+0xbc/0x140
[   40.410457]  ? lock_release+0xda0/0xda0
[   40.414400]  ? do_wait_intr+0x3e0/0x3e0
[   40.418350]  ? __lock_is_held+0xbc/0x140
[   40.422384]  __wake_up_locked+0x11/0x20
[   40.426328]  ep_insert+0x15d0/0x1b10
[   40.430024]  ? ep_poll+0x1190/0x1190
[   40.433709]  ? lock_release+0xda0/0xda0
[   40.437652]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   40.443504]  ? lock_downgrade+0x980/0x980
[   40.447634]  ? rcu_note_context_switch+0x710/0x710
[   40.452535]  ? __might_sleep+0x95/0x190
[   40.456478]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   40.460594]  ? __mutex_lock+0x16f/0x1a80
[   40.464620]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   40.468736]  ? lock_downgrade+0x980/0x980
[   40.472850]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   40.476974]  ? lock_release+0xda0/0xda0
[   40.480917]  ? __lock_is_held+0xbc/0x140
[   40.484963]  ? __fget+0x362/0x580
[   40.488391]  ? iterate_fd+0x3f0/0x3f0
[   40.492160]  ? find_held_lock+0x39/0x1d0
[   40.496198]  ? lock_downgrade+0x980/0x980
[   40.500325]  ? __might_fault+0xe0/0x1d0
[   40.504270]  ? __fget_light+0x29d/0x390
[   40.508214]  ? fget_raw+0x20/0x20
[   40.511635]  ? is_bpf_text_address+0xa4/0x120
[   40.516098]  ? kernel_text_address+0x102/0x140
[   40.520652]  ? __might_sleep+0x95/0x190
[   40.524596]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   40.530023]  SyS_epoll_ctl+0x12e4/0x1ab0
[   40.534052]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   40.538255]  ? save_stack+0xa3/0xd0
[   40.541860]  ? SyS_epoll_create+0x240/0x240
[   40.546150]  ? __lock_is_held+0xbc/0x140
[   40.550191]  ? __fd_install+0x288/0x740
[   40.554136]  ? get_unused_fd_flags+0x190/0x190
[   40.558686]  ? may_open_dev+0xe0/0xe0
[   40.562461]  ? rcu_pm_notify+0xc0/0xc0
[   40.566318]  ? putname+0xee/0x130
[   40.569741]  ? putname+0xee/0x130
[   40.573160]  ? rcu_read_lock_sched_held+0x108/0x120
[   40.578142]  ? kmem_cache_free+0x249/0x280
[   40.582345]  ? putname+0xf3/0x130
[   40.585767]  ? do_sys_open+0x320/0x6d0
[   40.589628]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   40.594439]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   40.599424]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   40.604155]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   40.608876] RIP: 0033:0x45f7d8
[   40.612034] RSP: 002b:000000c4201b14b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   40.619706] RAX: ffffffffffffffda RBX: 0000000000000a00 RCX: 000000000045f7d8
[   40.626946] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   40.634182] RBP: 00007f9822ad3d58 R08: 0000000000000000 R09: 0000000000000000
[   40.641419] R10: 000000c4201b14e4 R11: 0000000000000246 R12: 0000000000000610
[   40.648660] R13: 00000000000000f2 R14: 0000000000000032 R15: 0000000000000018
[   40.656098] Dumping ftrace buffer:
[   40.659661]    (ftrace buffer empty)
[   40.663339] Kernel Offset: disabled
[   40.666941] Rebooting in 86400 seconds..