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-kasan-gce-0,10.128.0.3' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz1.accept_dad = 0
net.ipv6.conf.syz7.accept_dad = 0
net.ipv6.conf.syz6.accept_dad = 0
net.ipv6.conf.syz2.accept_dad = 0
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz3.accept_dad = 0
net.ipv6.conf.syz4.accept_dad = 0
net.ipv6.conf.syz5.accept_dad = 0
net.ipv6.conf.syz7.router_solicitations = 0
net.ipv6.conf.syz1.router_solicitations = 0
net.ipv6.conf.syz0.router_solicitations = 0
net.ipv6.conf.syz2.router_solicitations = 0
net.ipv6.conf.syz3.router_solicitations = 0
net.ipv6.conf.syz6.router_solicitations = 0
net.ipv6.conf.syz4.router_solicitations = 0
net.ipv6.conf.syz5.router_solicitations = 0
executing program
executing program
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [  127.281789] device gre0 entered promiscuous mode
executing program
executing program
executing program
executing program
executing program
executing program
executing program
[  127.425271] device gre0 entered promiscuous mode
[  183.776038] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 56s!
[  183.784195] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 56s!
[  183.792287] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 52s!
[  183.799919] Showing busy workqueues and worker pools:
[  183.805112] workqueue events: flags=0x0
[  183.809149]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  183.815347]     pending: cache_reap
[  183.818976]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[  183.825117]     pending: vmstat_shepherd, cache_reap
[  183.830236] workqueue events_long: flags=0x0
[  183.834634]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  183.840780]     pending: gc_worker
[  183.844329] workqueue events_power_efficient: flags=0x80
[  183.849765]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  183.855900]     pending: neigh_periodic_work
[  183.860315]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[  183.866453]     pending: neigh_periodic_work, do_cache_clean
[  183.872258] workqueue mm_percpu_wq: flags=0x8
[  183.876743]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  183.882880]     pending: vmstat_update
[  183.886769]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  183.892903]     pending: vmstat_update
[  183.896792] workqueue writeback: flags=0x4e
[  183.901140]   pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256
[  183.906886]     pending: wb_workfn
[  183.910425] workqueue kblockd: flags=0x18
[  183.914563]   pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
[  183.920875]     pending: blk_timeout_work
[  183.925038] workqueue ipv6_addrconf: flags=0x40008
[  183.929954]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1
[  183.935915]     pending: addrconf_dad_work
[  183.940133]     delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work, addrconf_dad_work
[  183.962584]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1
[  183.968545]     pending: addrconf_dad_work
[  183.972762]     delayed: addrconf_dad_work, addrconf_dad_work, addrconf_dad_work