[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Update UTMP about System Runlevel Changes.
[  OK  ] Started Load/Save RF Kill Switch Status.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  857.970689] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 247s!
[  857.979086] Showing busy workqueues and worker pools:
[  857.984540] workqueue events: flags=0x0
[  857.988599]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
[  857.995643]     in-flight: 3:rtc_timer_do_work
[  858.000211]     pending: defense_work_handler, vmstat_shepherd, cache_reap
[  858.007299] workqueue events_long: flags=0x0
[  858.011718]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.018627]     pending: gc_worker
[  858.022194] workqueue events_freezable: flags=0x4
[  858.027020]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.033947]     pending: update_balloon_stats_func
[  858.038926] workqueue events_power_efficient: flags=0x80
[  858.044381]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.051294]     in-flight: 7981:sync_cmos_clock
[  858.055996]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
[  858.062937]     pending: neigh_periodic_work, neigh_periodic_work, do_cache_clean
[  858.070646] workqueue mm_percpu_wq: flags=0x8
[  858.075128]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.082040]     pending: vmstat_update
[  858.086010] workqueue dm_bufio_cache: flags=0x8
[  858.090686]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.097597]     pending: work_fn
[  858.100993] workqueue ipv6_addrconf: flags=0x40008
[  858.105909]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
[  858.112646]     pending: addrconf_verify_work
[  858.117179] pool 0: cpus=0 node=0 flags=0x0 nice=0 hung=248s workers=2 idle: 3624
[  858.125304] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=3 idle: 18 3573
executing program