Warning: Permanently added '10.128.0.84' (ECDSA) to the list of known hosts.
2020/05/08 12:00:37 fuzzer started
2020/05/08 12:00:37 dialing manager at 10.128.0.105:46419
2020/05/08 12:00:46 syscalls: 3055
2020/05/08 12:00:46 code coverage: enabled
2020/05/08 12:00:46 comparison tracing: enabled
2020/05/08 12:00:46 extra coverage: enabled
2020/05/08 12:00:46 setuid sandbox: enabled
2020/05/08 12:00:46 namespace sandbox: enabled
2020/05/08 12:00:46 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/08 12:00:46 fault injection: enabled
2020/05/08 12:00:46 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/08 12:00:46 net packet injection: enabled
2020/05/08 12:00:46 net device setup: enabled
2020/05/08 12:00:46 concurrency sanitizer: enabled
2020/05/08 12:00:46 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/08 12:00:46 USB emulation: enabled
syzkaller login: [   57.368745][ T8921] KCSAN: could not find function: '_find_next_bit'
2020/05/08 12:00:49 adding functions to KCSAN blacklist: 'find_get_pages_range_tag' 'run_timer_softirq' '__ext4_new_inode' '_find_next_bit' 'futex_wait_queue_me' 'tick_nohz_idle_stop_tick' 'generic_write_end' 'ep_poll' 'blk_mq_dispatch_rq_list' 'do_nanosleep' 'shmem_file_read_iter' 'ext4_mark_iloc_dirty' 'page_counter_charge' 'add_timer' 'xas_clear_mark' 'mod_timer' 'pcpu_alloc' 'do_exit' '__add_to_page_cache_locked' 'do_syslog' 'blk_mq_sched_dispatch_requests' 'copy_process' 'ext4_free_inodes_count' 'generic_fillattr' 
[   80.559629][    T0] ==================================================================
[   80.567770][    T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_do_timer
[   80.575917][    T0] 
[   80.578330][    T0] write to 0xffffffff8764e210 of 4 bytes by interrupt on cpu 0:
[   80.585975][    T0]  tick_sched_do_timer+0xb4/0xd0
[   80.590920][    T0]  tick_sched_timer+0x3f/0xd0
[   80.595734][    T0]  __hrtimer_run_queues+0x271/0x600
[   80.600934][    T0]  hrtimer_interrupt+0x226/0x490
[   80.605882][    T0]  smp_apic_timer_interrupt+0xd8/0x270
[   80.611353][    T0]  apic_timer_interrupt+0xf/0x20
[   80.616305][    T0]  do_syscall_64+0x55/0x3b0
[   80.620822][    T0]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   80.626708][    T0] 
[   80.629044][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1:
[   80.636334][    T0]  tick_nohz_next_event+0x181/0x340
[   80.641636][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   80.647314][    T0]  do_idle+0x1ad/0x290
[   80.651393][    T0]  cpu_startup_entry+0x14/0x20
[   80.656167][    T0]  start_secondary+0x169/0x1b0
[   80.660942][    T0]  secondary_startup_64+0xa4/0xb0
[   80.665959][    T0] 
[   80.668282][    T0] Reported by Kernel Concurrency Sanitizer on:
[   80.674439][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   80.682324][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   80.692459][    T0] ==================================================================
[   80.700517][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   80.707118][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc1-syzkaller #0
[   80.715004][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   80.725186][    T0] Call Trace:
[   80.728468][    T0]  dump_stack+0x11d/0x187
[   80.732786][    T0]  panic+0x210/0x640
[   80.736737][    T0]  ? vprintk_func+0x89/0x13a
[   80.741323][    T0]  kcsan_report.cold+0xc/0x1a
[   80.745986][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   80.751360][    T0]  tick_nohz_next_event+0x181/0x340
[   80.756664][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   80.762194][    T0]  ? ktime_get+0x1c9/0x210
[   80.766647][    T0]  ? debug_smp_processor_id+0x3f/0x129
[   80.772124][    T0]  do_idle+0x1ad/0x290
[   80.776179][    T0]  cpu_startup_entry+0x14/0x20
[   80.781063][    T0]  start_secondary+0x169/0x1b0
[   80.785870][    T0]  secondary_startup_64+0xa4/0xb0
[   80.792687][    T0] Kernel Offset: disabled
[   80.797056][    T0] Rebooting in 86400 seconds..