Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts.
2020/05/20 15:51:46 fuzzer started
2020/05/20 15:51:47 dialing manager at 10.128.0.105:44971
2020/05/20 15:51:47 syscalls: 3055
2020/05/20 15:51:47 code coverage: enabled
2020/05/20 15:51:47 comparison tracing: enabled
2020/05/20 15:51:47 extra coverage: enabled
2020/05/20 15:51:47 setuid sandbox: enabled
2020/05/20 15:51:47 namespace sandbox: enabled
2020/05/20 15:51:47 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/20 15:51:47 fault injection: enabled
2020/05/20 15:51:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/20 15:51:47 net packet injection: enabled
2020/05/20 15:51:47 net device setup: enabled
2020/05/20 15:51:47 concurrency sanitizer: enabled
2020/05/20 15:51:47 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/20 15:51:47 USB emulation: enabled
syzkaller login: [   50.957926][ T8907] KCSAN: could not find function: '_find_next_bit'
2020/05/20 15:51:51 adding functions to KCSAN blacklist: 'generic_write_end' 'ktime_get_real_seconds' '__find_get_block' 'xas_clear_mark' 'do_signal_stop' '_find_next_bit' 'ext4_free_inodes_count' 'ktime_get_seconds' 'blk_mq_get_request' 'echo_char' 'mod_timer' 'get_cpu_idle_time_us' 'fsnotify' '__ext4_new_inode' 'blk_mq_dispatch_rq_list' 'ext4_ext_try_to_merge_right' 'add_timer' 'pcpu_alloc' 'tick_sched_do_timer' 'find_get_pages_range_tag' 'n_tty_receive_buf_common' 'page_counter_charge' 'generic_fillattr' 'dccp_fin' 'shmem_getpage_gfp' 'copy_process' 'blk_mq_sched_dispatch_requests' 'ep_poll' 'alloc_pid' 'do_nanosleep' 
[  138.169726][    T0] ==================================================================
[  138.178106][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event
[  138.186715][    T0] 
[  138.189040][    T0] write to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1:
[  138.196810][    T0]  tick_nohz_idle_stop_tick+0x52c/0x680
[  138.202396][    T0]  do_idle+0x1ad/0x290
[  138.206513][    T0]  cpu_startup_entry+0x14/0x20
[  138.211324][    T0]  start_secondary+0x169/0x1b0
[  138.216120][    T0]  secondary_startup_64+0xa4/0xb0
[  138.221165][    T0] 
[  138.223499][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0:
[  138.231065][    T0]  tick_nohz_next_event+0x181/0x340
[  138.236350][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  138.242060][    T0]  do_idle+0x1ad/0x290
[  138.246123][    T0]  cpu_startup_entry+0x14/0x20
[  138.250919][    T0]  rest_init+0xe4/0xeb
[  138.255145][    T0]  arch_call_rest_init+0x13/0x2b
[  138.260121][    T0]  start_kernel+0x7fe/0x823
[  138.264712][    T0]  secondary_startup_64+0xa4/0xb0
[  138.269929][    T0] 
[  138.272285][    T0] Reported by Kernel Concurrency Sanitizer on:
[  138.278426][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  138.286299][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  138.296396][    T0] ==================================================================
[  138.304529][    T0] Kernel panic - not syncing: panic_on_warn set ...
[  138.311165][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  138.319088][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  138.329138][    T0] Call Trace:
[  138.332611][    T0]  dump_stack+0x11d/0x187
[  138.336950][    T0]  panic+0x210/0x640
[  138.340842][    T0]  ? vprintk_func+0x89/0x13a
[  138.345534][    T0]  kcsan_report.cold+0xc/0x1a
[  138.350204][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[  138.355610][    T0]  tick_nohz_next_event+0x181/0x340
[  138.360844][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  138.366509][    T0]  ? rcu_dynticks_eqs_exit+0x2c/0x60
[  138.371873][    T0]  ? debug_smp_processor_id+0x3f/0x129
[  138.377483][    T0]  do_idle+0x1ad/0x290
[  138.381594][    T0]  ? debug_smp_processor_id+0x3a/0x129
[  138.387046][    T0]  cpu_startup_entry+0x14/0x20
[  138.391848][    T0]  rest_init+0xe4/0xeb
[  138.395912][    T0]  ? trace_init_perf_perm_irq_work_exit+0xe/0xe
[  138.402142][    T0]  arch_call_rest_init+0x13/0x2b
[  138.407075][    T0]  start_kernel+0x7fe/0x823
[  138.411799][    T0]  secondary_startup_64+0xa4/0xb0
[  138.418131][    T0] Kernel Offset: disabled
[  138.422462][    T0] Rebooting in 86400 seconds..