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

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [  857.979476] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 245s!
[  857.988059] Showing busy workqueues and worker pools:
[  857.993354] workqueue events: flags=0x0
[  857.997466]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
[  858.004677]     in-flight: 3472:rtc_timer_do_work
[  858.009526]     pending: cache_reap
[  858.013158]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.020116]     pending: defense_work_handler
[  858.024648] workqueue events_freezable: flags=0x4
[  858.029572]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.036507]     pending: update_balloon_stats_func
[  858.041476] workqueue events_power_efficient: flags=0x80
[  858.046918]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
[  858.053906]     pending: fb_flashcursor, neigh_periodic_work, check_lifetime, sync_cmos_clock
[  858.062656] workqueue mm_percpu_wq: flags=0x8
[  858.067145]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
[  858.074116]     pending: vmstat_update
[  858.078103] workqueue ipv6_addrconf: flags=0x40008
[  858.083022]   pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
[  858.089815]     pending: addrconf_verify_work
[  858.094352] pool 2: cpus=1 node=0 flags=0x0 nice=0 hung=245s workers=2 idle: 3636