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-386-4,10.128.15.226' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   83.562249] device gre0 entered promiscuous mode
[  121.823038] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 38s!
[  121.831185] Showing busy workqueues and worker pools:
[  121.836400] workqueue events: flags=0x0
[  121.840437]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[  121.846594]     pending: vmstat_shepherd, cache_reap
[  121.851708] workqueue events_long: flags=0x0
[  121.856102]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  121.862224]     pending: gc_worker
[  121.865767] workqueue events_power_efficient: flags=0x80
[  121.871198]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256
[  121.877320]     pending: neigh_periodic_work, neigh_periodic_work, do_cache_clean, reg_check_chans_work
[  121.886868] workqueue mm_percpu_wq: flags=0x8
[  121.891348]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  121.897473]     pending: vmstat_update
[  121.901365] workqueue kblockd: flags=0x18
[  121.905504]   pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=2/256
[  121.911798]     pending: cfq_kick_queue, blk_delay_work
[  121.917182] workqueue ipv6_addrconf: flags=0x40008
[  121.922095]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1
[  121.928043]     pending: addrconf_dad_work