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-6,10.128.0.14' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  152.032046] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 57s!
[  152.033311] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 52s!
[  152.034706] Showing busy workqueues and worker pools:
[  152.035433] workqueue events: flags=0x0
[  152.036006]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256
[  152.036906]     pending: vmstat_shepherd, cache_reap
[  152.037630] workqueue events_long: flags=0x0
[  152.038244]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  152.039099]     pending: gc_worker
[  152.039629] workqueue mm_percpu_wq: flags=0x8
[  152.040251]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  152.041119]     pending: vmstat_update
[  152.041677] workqueue writeback: flags=0x4e
[  152.042297]   pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256
[  152.043124]     in-flight: 5:wb_workfn
[  152.043683] workqueue kblockd: flags=0x18
[  152.044263]   pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256
[  152.045141]     pending: cfq_kick_queue
[  152.045726] workqueue ipv6_addrconf: flags=0x40008
[  152.046404]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1
[  152.047225]     pending: addrconf_dad_work
[  152.047834] pool 4: cpus=0-1 flags=0x4 nice=0 hung=28s workers=4 idle: 27 90 21