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-0,10.128.0.54' (ECDSA) to the list of known hosts.
2017/12/04 14:29:21 fuzzer started
2017/12/04 14:29:21 dialing manager at 10.128.0.26:36183
syzkaller login: [   34.251842] WARNING: CPU: 0 PID: 3088 at kernel/sched/wait.c:79 __wake_up_common+0x433/0x770
[   34.253149] Kernel panic - not syncing: panic_on_warn set ...
[   34.253149] 
[   34.254140] CPU: 0 PID: 3088 Comm: syz-fuzzer Not tainted 4.15.0-rc1-mm1+ #35
[   34.255131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.256391] Call Trace:
[   34.256748]  dump_stack+0x194/0x257
[   34.257252]  ? arch_local_irq_restore+0x53/0x53
[   34.257877]  ? vsnprintf+0x1ed/0x1900
[   34.258396]  panic+0x1e4/0x41c
[   34.258841]  ? refcount_error_report+0x214/0x214
[   34.259473]  ? show_regs_print_info+0x65/0x65
[   34.260079]  ? __warn+0x1c1/0x200
[   34.260550]  ? __wake_up_common+0x433/0x770
[   34.261129]  __warn+0x1dc/0x200
[   34.261579]  ? __wake_up_common+0x433/0x770
[   34.262160]  report_bug+0x211/0x2d0
[   34.262676]  fixup_bug.part.11+0x37/0x80
[   34.263239]  do_error_trap+0x2d7/0x3e0
[   34.263784]  ? math_error+0x400/0x400
[   34.264297]  ? check_noncircular+0x20/0x20
[   34.264883]  ? find_held_lock+0x39/0x1d0
[   34.265435]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   34.266087]  do_invalid_op+0x1b/0x20
[   34.266587]  invalid_op+0x22/0x40
[   34.267054] RIP: 0010:__wake_up_common+0x433/0x770
[   34.267708] RSP: 0018:ffff8801cc7af4b0 EFLAGS: 00010046
[   34.268431] RAX: 0000000000000000 RBX: ffff8801cb95a610 RCX: 0000000000000004
[   34.269386] RDX: 1ffffffff0bd9741 RSI: ffff8801cb95a628 RDI: 0000000000000082
[   34.270338] RBP: ffff8801cc7af5b0 R08: 0000000000000000 R09: 0000000000000000
[   34.271342] R10: 0000000000000000 R11: ffffffff8748cda0 R12: 0000000000000000
[   34.272361] R13: ffff8801cb95a650 R14: 0000000000000001 R15: ffff8801cb95a6b0
[   34.279622]  ? __lock_is_held+0xbc/0x140
[   34.283656]  ? lock_release+0xda0/0xda0
[   34.287604]  ? do_wait_intr+0x3e0/0x3e0
[   34.291552]  ? __lock_is_held+0xbc/0x140
[   34.295590]  __wake_up_locked+0x11/0x20
[   34.299536]  ep_insert+0x15d0/0x1b10
[   34.303239]  ? ep_poll+0x1190/0x1190
[   34.306928]  ? lock_release+0xda0/0xda0
[   34.310873]  ? trace_event_raw_event_sched_switch+0x800/0x800
[   34.316725]  ? lock_downgrade+0x980/0x980
[   34.320844]  ? rcu_note_context_switch+0x710/0x710
[   34.325746]  ? __might_sleep+0x95/0x190
[   34.329688]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.333807]  ? __mutex_lock+0x16f/0x1a80
[   34.337835]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.341954]  ? lock_downgrade+0x980/0x980
[   34.346069]  ? SyS_epoll_ctl+0x8a3/0x1ab0
[   34.350192]  ? lock_release+0xda0/0xda0
[   34.354136]  ? __lock_is_held+0xbc/0x140
[   34.358178]  ? __fget+0x362/0x580
[   34.361607]  ? iterate_fd+0x3f0/0x3f0
[   34.365377]  ? find_held_lock+0x39/0x1d0
[   34.369417]  ? lock_downgrade+0x980/0x980
[   34.373560]  ? __might_fault+0xe0/0x1d0
[   34.377506]  ? __fget_light+0x29d/0x390
[   34.381449]  ? fget_raw+0x20/0x20
[   34.384873]  ? is_bpf_text_address+0xa4/0x120
[   34.389335]  ? kernel_text_address+0x102/0x140
[   34.393887]  ? __might_sleep+0x95/0x190
[   34.397830]  ? ep_unregister_pollwait.isra.7+0x590/0x590
[   34.403255]  SyS_epoll_ctl+0x12e4/0x1ab0
[   34.407284]  ? SyS_epoll_ctl+0x12e4/0x1ab0
[   34.412094]  ? save_stack+0xa3/0xd0
[   34.416652]  ? SyS_epoll_create+0x240/0x240
[   34.420942]  ? __lock_is_held+0xbc/0x140
[   34.424985]  ? __fd_install+0x288/0x740
[   34.428929]  ? get_unused_fd_flags+0x190/0x190
[   34.433481]  ? may_open_dev+0xe0/0xe0
[   34.437258]  ? rcu_pm_notify+0xc0/0xc0
[   34.441115]  ? putname+0xee/0x130
[   34.444538]  ? putname+0xee/0x130
[   34.447961]  ? rcu_read_lock_sched_held+0x108/0x120
[   34.452949]  ? kmem_cache_free+0x249/0x280
[   34.457152]  ? putname+0xf3/0x130
[   34.460575]  ? do_sys_open+0x320/0x6d0
[   34.464436]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[   34.469247]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   34.474232]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   34.478961]  entry_SYSCALL_64_fastpath+0x1f/0x96
[   34.483685] RIP: 0033:0x45f7d8
[   34.486843] RSP: 002b:000000c4201c54b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
[   34.494519] RAX: ffffffffffffffda RBX: 0000000000000045 RCX: 000000000045f7d8
[   34.501755] RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000004
[   34.508992] RBP: 000000c4201c5720 R08: 0000000000000000 R09: 0000000000000000
[   34.516228] R10: 000000c4201c54e4 R11: 0000000000000246 R12: 000000c421a0b9b9
[   34.523464] R13: 00000000000000f5 R14: 0000000000000011 R15: 0000000000000018
[   34.530918] Dumping ftrace buffer:
[   34.534489]    (ftrace buffer empty)
[   34.538167] Kernel Offset: disabled
[   34.541765] Rebooting in 86400 seconds..