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-5,10.128.0.21' (ECDSA) to the list of known hosts.
2017/10/27 20:59:37 parsed 1 programs
2017/10/27 20:59:37 executed programs: 0
syzkaller login: [  166.486591] device gre0 entered promiscuous mode
[  166.543923] device gre0 entered promiscuous mode
[  166.552464] device gre0 entered promiscuous mode
[  215.008037] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 48s!
[  215.016210] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 48s!
[  215.024317] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=-20 stuck for 43s!
[  215.032555] BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 44s!
[  215.040187] Showing busy workqueues and worker pools:
[  215.045384] workqueue events: flags=0x0
[  215.049436]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256
[  215.055634]     pending: cache_reap, check_corruption
[  215.060838]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[  215.066976]     pending: vmstat_shepherd, cache_reap
[  215.072092] workqueue events_long: flags=0x0
[  215.076505]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  215.082643]     pending: gc_worker
[  215.086188] workqueue events_power_efficient: flags=0x80
[  215.091628]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256
[  215.097767]     pending: neigh_periodic_work, neigh_periodic_work, do_cache_clean
[  215.105409] workqueue mm_percpu_wq: flags=0x8
[  215.109893]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256
[  215.116031]     pending: vmstat_update
[  215.119920]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  215.126061]     pending: vmstat_update
[  215.129954] workqueue writeback: flags=0x4e
[  215.134312]   pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256
[  215.140063]     pending: wb_workfn
[  215.143605] workqueue kblockd: flags=0x18
[  215.147742]   pwq 3: cpus=1 node=0 flags=0x0 nice=-20 active=1/256
[  215.154052]     pending: blk_timeout_work
[  215.158219] workqueue ipv6_addrconf: flags=0x40008
[  215.163137]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1
[  215.169101]     pending: addrconf_dad_work
[  215.173345]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1
[  215.179316]     in-flight: 23:addrconf_dad_work
[  215.183997] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=48s workers=4 idle: 1343 1281 3