Warning: Permanently added '10.128.0.18' (ECDSA) to the list of known hosts.
2020/06/10 13:20:54 fuzzer started
2020/06/10 13:20:54 dialing manager at 10.128.0.105:34607
2020/06/10 13:20:55 syscalls: 3076
2020/06/10 13:20:55 code coverage: enabled
2020/06/10 13:20:55 comparison tracing: enabled
2020/06/10 13:20:55 extra coverage: enabled
2020/06/10 13:20:55 setuid sandbox: enabled
2020/06/10 13:20:55 namespace sandbox: enabled
2020/06/10 13:20:55 Android sandbox: /sys/fs/selinux/policy does not exist
2020/06/10 13:20:55 fault injection: enabled
2020/06/10 13:20:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/06/10 13:20:55 net packet injection: enabled
2020/06/10 13:20:55 net device setup: enabled
2020/06/10 13:20:55 concurrency sanitizer: enabled
2020/06/10 13:20:55 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/06/10 13:20:55 USB emulation: enabled
syzkaller login: [   52.062149][ T8894] KCSAN: could not find function: '_find_next_bit'
2020/06/10 13:20:58 adding functions to KCSAN blacklist: '__ext4_new_inode' 'ktime_get_real_seconds' 'blk_mq_dispatch_rq_list' 'futex_wait_queue_me' 'ep_poll' 'copy_process' '_find_next_bit' 'do_nanosleep' 'blk_mq_sched_dispatch_requests' 'page_counter_charge' 'pcpu_alloc' 'find_get_pages_range_tag' 'generic_write_end' 'blk_mq_get_request' 'run_timer_softirq' 'echo_char' 'xas_clear_mark' 'mod_timer' 'ext4_free_inodes_count' 'ext4_mark_iloc_dirty' 'dd_has_work' 
[   95.537200][    T0] ==================================================================
[   95.545346][    T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_do_timer
[   95.553503][    T0] 
[   95.555833][    T0] write to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 1:
[   95.563467][    T0]  tick_sched_do_timer+0xb4/0xd0
[   95.568404][    T0]  tick_sched_timer+0x3f/0xd0
[   95.573077][    T0]  __hrtimer_run_queues+0x271/0x600
[   95.578266][    T0]  hrtimer_interrupt+0x226/0x490
[   95.583183][    T0]  smp_apic_timer_interrupt+0xd8/0x270
[   95.588615][    T0]  apic_timer_interrupt+0xf/0x20
[   95.593542][    T0] 
[   95.595850][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0:
[   95.603116][    T0]  tick_nohz_next_event+0x181/0x340
[   95.608323][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   95.613861][    T0]  do_idle+0x1ad/0x290
[   95.617903][    T0]  cpu_startup_entry+0x14/0x20
[   95.622726][    T0]  rest_init+0xe4/0xeb
[   95.626769][    T0]  arch_call_rest_init+0x13/0x2b
[   95.631678][    T0]  start_kernel+0x7fe/0x823
[   95.636157][    T0]  secondary_startup_64+0xa4/0xb0
[   95.641146][    T0] 
[   95.643455][    T0] Reported by Kernel Concurrency Sanitizer on:
[   95.649599][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[   95.657457][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   95.667927][    T0] ==================================================================
[   95.675958][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   95.682530][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[   95.690390][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   95.700428][    T0] Call Trace:
[   95.703798][    T0]  dump_stack+0x11d/0x187
[   95.708113][    T0]  panic+0x210/0x640
[   95.711987][    T0]  ? vprintk_func+0x89/0x13a
[   95.717160][    T0]  kcsan_report.cold+0xc/0x1a
[   95.721826][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   95.727175][    T0]  tick_nohz_next_event+0x181/0x340
[   95.732415][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   95.737965][    T0]  ? rcu_dynticks_eqs_exit+0x2c/0x60
[   95.743488][    T0]  ? debug_smp_processor_id+0x3f/0x129
[   95.748929][    T0]  do_idle+0x1ad/0x290
[   95.753112][    T0]  ? debug_smp_processor_id+0x3a/0x129
[   95.758562][    T0]  cpu_startup_entry+0x14/0x20
[   95.763306][    T0]  rest_init+0xe4/0xeb
[   95.767355][    T0]  ? trace_init_perf_perm_irq_work_exit+0xe/0xe
[   95.773576][    T0]  arch_call_rest_init+0x13/0x2b
[   95.778490][    T0]  start_kernel+0x7fe/0x823
[   95.782979][    T0]  secondary_startup_64+0xa4/0xb0
[   95.788682][    T0] Kernel Offset: disabled
[   95.792997][    T0] Rebooting in 86400 seconds..