Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts.
2020/05/14 14:35:19 fuzzer started
2020/05/14 14:35:20 dialing manager at 10.128.0.105:44163
2020/05/14 14:35:20 syscalls: 3055
2020/05/14 14:35:20 code coverage: enabled
2020/05/14 14:35:20 comparison tracing: enabled
2020/05/14 14:35:20 extra coverage: enabled
2020/05/14 14:35:20 setuid sandbox: enabled
2020/05/14 14:35:20 namespace sandbox: enabled
2020/05/14 14:35:20 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/14 14:35:20 fault injection: enabled
2020/05/14 14:35:20 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/14 14:35:20 net packet injection: enabled
2020/05/14 14:35:20 net device setup: enabled
2020/05/14 14:35:20 concurrency sanitizer: enabled
2020/05/14 14:35:20 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/14 14:35:20 USB emulation: enabled
syzkaller login: [   53.547275][ T8920] KCSAN: could not find function: '_find_next_bit'
[   54.231967][ T8920] KCSAN: could not find function: 'poll_schedule_timeout'
2020/05/14 14:35:26 adding functions to KCSAN blacklist: '__ext4_new_inode' 'generic_write_end' 'ext4_mark_iloc_dirty' 'dccp_rcv_reset' 'yama_ptracer_del' 'alloc_pid' 'add_timer' 'shmem_file_read_iter' 'xas_find_marked' 'blk_mq_dispatch_rq_list' 'do_nanosleep' 'tick_nohz_idle_stop_tick' 'ext4_free_inodes_count' 'tick_sched_do_timer' 'ktime_get_seconds' 'kauditd_thread' '__add_to_page_cache_locked' 'blk_mq_sched_dispatch_requests' 'wbt_done' 'copy_process' 'commit_echoes' '__delete_from_page_cache' 'perf_event_wakeup' 'ep_poll' 'do_signal_stop' 'ext4_da_write_end' '__get_user_pages' 'do_exit' 'find_get_pages_range_tag' '_find_next_bit' '__synchronize_hardirq' 'mod_timer' 'poll_schedule_timeout' 'ext4_mb_find_by_goal' 'run_timer_softirq' 'generic_fillattr' 'ktime_get_real_seconds' '__snd_rawmidi_transmit_ack' 'n_tty_receive_buf_common' 'page_counter_charge' 'echo_char' 'tick_nohz_next_event' '__perf_event_overflow' 'pcpu_alloc' 
[  226.108685][ T1926] ==================================================================
[  226.116843][ T1926] BUG: KCSAN: data-race in schedule_hrtimeout_range_clock / watchdog
[  226.124878][ T1926] 
[  226.127223][ T1926] write to 0xffff88812acb1010 of 8 bytes by task 8905 on cpu 1:
[  226.134847][ T1926]  schedule_hrtimeout_range_clock+0x14f/0x1f0
[  226.141009][ T1926]  schedule_hrtimeout_range+0x30/0x50
[  226.146747][ T1926]  poll_schedule_timeout.constprop.0+0x71/0xc0
[  226.152897][ T1926]  do_select+0xd7e/0x1020
[  226.157301][ T1926]  core_sys_select+0x2c7/0x5f0
[  226.162047][ T1926]  do_pselect.constprop.0+0x125/0x160
[  226.167508][ T1926]  __x64_sys_pselect6+0x12a/0x160
[  226.172547][ T1926]  do_syscall_64+0xc7/0x3b0
[  226.177033][ T1926]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  226.183268][ T1926] 
[  226.185586][ T1926] read to 0xffff88812acb1010 of 8 bytes by task 1926 on cpu 0:
[  226.193233][ T1926]  watchdog+0x2b8/0x960
[  226.197386][ T1926]  kthread+0x203/0x230
[  226.201441][ T1926]  ret_from_fork+0x1f/0x30
[  226.205836][ T1926] 
[  226.208148][ T1926] Reported by Kernel Concurrency Sanitizer on:
[  226.214396][ T1926] CPU: 0 PID: 1926 Comm: khungtaskd Not tainted 5.7.0-rc1-syzkaller #0
[  226.222637][ T1926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  226.232670][ T1926] ==================================================================
[  226.240707][ T1926] Kernel panic - not syncing: panic_on_warn set ...
[  226.247286][ T1926] CPU: 0 PID: 1926 Comm: khungtaskd Not tainted 5.7.0-rc1-syzkaller #0
[  226.255517][ T1926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  226.265639][ T1926] Call Trace:
[  226.269367][ T1926]  dump_stack+0x11d/0x187
[  226.273699][ T1926]  panic+0x210/0x640
[  226.277584][ T1926]  ? vprintk_func+0x89/0x13a
[  226.282286][ T1926]  kcsan_report.cold+0xc/0x1a
[  226.286959][ T1926]  kcsan_setup_watchpoint+0x3fb/0x440
[  226.292351][ T1926]  watchdog+0x2b8/0x960
[  226.296516][ T1926]  ? __read_once_size.constprop.0+0x20/0x20
[  226.302663][ T1926]  kthread+0x203/0x230
[  226.306735][ T1926]  ? kthread_unpark+0xd0/0xd0
[  226.311406][ T1926]  ret_from_fork+0x1f/0x30
[  226.317318][ T1926] Kernel Offset: disabled
[  226.321656][ T1926] Rebooting in 86400 seconds..