Warning: Permanently added '10.128.1.22' (ECDSA) to the list of known hosts.
2020/04/07 08:26:38 fuzzer started
2020/04/07 08:26:40 dialing manager at 10.128.0.105:42903
2020/04/07 08:26:40 syscalls: 2955
2020/04/07 08:26:40 code coverage: enabled
2020/04/07 08:26:40 comparison tracing: enabled
2020/04/07 08:26:40 extra coverage: enabled
2020/04/07 08:26:40 setuid sandbox: enabled
2020/04/07 08:26:40 namespace sandbox: enabled
2020/04/07 08:26:40 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/07 08:26:40 fault injection: enabled
2020/04/07 08:26:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/07 08:26:40 net packet injection: enabled
2020/04/07 08:26:40 net device setup: enabled
2020/04/07 08:26:40 concurrency sanitizer: enabled
2020/04/07 08:26:40 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/07 08:26:40 USB emulation: /dev/raw-gadget does not exist
syzkaller login: [   56.320422][ T7803] KCSAN: could not find function: 'poll_schedule_timeout'
[   56.803543][ T7803] KCSAN: could not find function: '__follow_mount_rcu'
[   61.325462][ T7803] KCSAN: could not find function: '_find_next_bit'
2020/04/07 08:26:46 adding functions to KCSAN blacklist: 'ext4_free_inodes_count' 'n_tty_receive_buf_common' 'find_get_pages_range_tag' 'shmem_file_read_iter' 'futex_wait_queue_me' 'poll_schedule_timeout' '__follow_mount_rcu' 'ext4_write_end' 'ep_poll' 'wbt_done' 'do_nanosleep' 'xas_find_marked' '__filemap_fdatawrite_range' 'run_timer_softirq' 'pcpu_alloc' 'blk_mq_sched_dispatch_requests' 'mod_timer' 'ext4_mark_iloc_dirty' 'tick_sched_do_timer' 'ext4_mb_good_group' 'ktime_get_real_seconds' 'snd_seq_prioq_cell_out' 'do_exit' 'blk_mq_dispatch_rq_list' 'generic_fillattr' 'tick_nohz_idle_stop_tick' 'atime_needs_update' 'xas_clear_mark' 'do_syslog' '__ext4_new_inode' 'generic_write_end' 'echo_char' 'copy_process' 'kauditd_thread' '__snd_rawmidi_transmit_ack' 'dd_has_work' 'ext4_has_free_clusters' '__delete_from_page_cache' 'blk_mq_get_request' 'ext4_nonda_switch' 'add_timer' 'do_signal_stop' '_find_next_bit' 'tick_nohz_next_event' 'lruvec_lru_size' 'wbt_issue' 'ext4_writepages' 
[  225.428967][ T1077] ==================================================================
[  225.437100][ T1077] BUG: KCSAN: data-race in watchdog / worker_thread
[  225.443674][ T1077] 
[  225.446010][ T1077] write to 0xffff88812a02b010 of 8 bytes by task 2903 on cpu 0:
[  225.453655][ T1077]  worker_thread+0x1c9/0x7e0
[  225.458223][ T1077]  kthread+0x1cb/0x1f0
[  225.462288][ T1077]  ret_from_fork+0x1f/0x30
[  225.466694][ T1077] 
[  225.469026][ T1077] read to 0xffff88812a02b010 of 8 bytes by task 1077 on cpu 1:
[  225.476571][ T1077]  watchdog+0x2b8/0x960
[  225.480731][ T1077]  kthread+0x1cb/0x1f0
[  225.484799][ T1077]  ret_from_fork+0x1f/0x30
[  225.489199][ T1077] 
[  225.491519][ T1077] Reported by Kernel Concurrency Sanitizer on:
[  225.497673][ T1077] CPU: 1 PID: 1077 Comm: khungtaskd Not tainted 5.6.0-rc1-syzkaller #0
[  225.505903][ T1077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  225.515968][ T1077] ==================================================================
[  225.524030][ T1077] Kernel panic - not syncing: panic_on_warn set ...
[  225.530622][ T1077] CPU: 1 PID: 1077 Comm: khungtaskd Not tainted 5.6.0-rc1-syzkaller #0
[  225.538988][ T1077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  225.549061][ T1077] Call Trace:
[  225.552378][ T1077]  dump_stack+0x11d/0x187
[  225.556722][ T1077]  panic+0x210/0x640
[  225.560635][ T1077]  ? vprintk_func+0x89/0x13a
[  225.565256][ T1077]  kcsan_report.cold+0xc/0xf
[  225.569866][ T1077]  kcsan_setup_watchpoint+0x3fb/0x440
[  225.575252][ T1077]  watchdog+0x2b8/0x960
[  225.579426][ T1077]  ? constant_test_bit+0xd/0x30
[  225.584294][ T1077]  ? __read_once_size.constprop.0+0x20/0x20
[  225.590210][ T1077]  kthread+0x1cb/0x1f0
[  225.594294][ T1077]  ? kthread_unpark+0xd0/0xd0
[  225.598986][ T1077]  ret_from_fork+0x1f/0x30
[  225.604878][ T1077] Kernel Offset: disabled
[  225.609203][ T1077] Rebooting in 86400 seconds..