Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts.
2020/04/01 00:40:50 fuzzer started
2020/04/01 00:40:51 dialing manager at 10.128.0.105:45605
2020/04/01 00:40:52 syscalls: 2955
2020/04/01 00:40:52 code coverage: enabled
2020/04/01 00:40:52 comparison tracing: enabled
2020/04/01 00:40:52 extra coverage: enabled
2020/04/01 00:40:52 setuid sandbox: enabled
2020/04/01 00:40:52 namespace sandbox: enabled
2020/04/01 00:40:52 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/01 00:40:52 fault injection: enabled
2020/04/01 00:40:52 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/01 00:40:52 net packet injection: enabled
2020/04/01 00:40:52 net device setup: enabled
2020/04/01 00:40:52 concurrency sanitizer: enabled
2020/04/01 00:40:52 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/01 00:40:52 adding functions to KCSAN blacklist: 'ext4_has_free_clusters' 'alloc_empty_file' 'generic_write_end' '__ext4_new_inode' 'find_get_pages_range_tag' 'ep_poll' 
syzkaller login: [   71.010513][    T0] ==================================================================
[   71.018773][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event
[   71.027364][    T0] 
[   71.029679][    T0] write to 0xffffffff85d056d0 of 4 bytes by task 0 on cpu 0:
[   71.037036][    T0]  tick_nohz_idle_stop_tick+0x52c/0x680
[   71.042613][    T0]  do_idle+0x1ad/0x290
[   71.046669][    T0]  cpu_startup_entry+0x14/0x20
[   71.051433][    T0]  rest_init+0xe4/0xeb
[   71.055490][    T0]  arch_call_rest_init+0x13/0x2b
[   71.060415][    T0]  start_kernel+0xcc2/0xceb
[   71.065416][    T0]  secondary_startup_64+0xa4/0xb0
[   71.070425][    T0] 
[   71.072734][    T0] read to 0xffffffff85d056d0 of 4 bytes by task 0 on cpu 1:
[   71.080014][    T0]  tick_nohz_next_event+0x192/0x350
[   71.085192][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   71.090722][    T0]  do_idle+0x1ad/0x290
[   71.094771][    T0]  cpu_startup_entry+0x14/0x20
[   71.099517][    T0]  start_secondary+0x164/0x1b0
[   71.104259][    T0]  secondary_startup_64+0xa4/0xb0
[   71.109267][    T0] 
[   71.111569][    T0] Reported by Kernel Concurrency Sanitizer on:
[   71.117747][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[   71.125710][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.135766][    T0] ==================================================================
[   71.143809][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   71.150378][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc1-syzkaller #0
[   71.158242][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   71.168275][    T0] Call Trace:
[   71.172168][    T0]  dump_stack+0x11d/0x187
[   71.176528][    T0]  panic+0x210/0x640
[   71.180593][    T0]  ? vprintk_func+0x89/0x13a
[   71.185180][    T0]  kcsan_report.cold+0xc/0xf
[   71.189758][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   71.195116][    T0]  tick_nohz_next_event+0x192/0x350
[   71.200301][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[   71.205825][    T0]  ? ktime_get+0x1c9/0x210
[   71.210227][    T0]  ? debug_smp_processor_id+0x3f/0x129
[   71.215679][    T0]  do_idle+0x1ad/0x290
[   71.219748][    T0]  cpu_startup_entry+0x14/0x20
[   71.224493][    T0]  start_secondary+0x164/0x1b0
[   71.229238][    T0]  secondary_startup_64+0xa4/0xb0
[   71.235681][    T0] Kernel Offset: disabled
[   71.240006][    T0] Rebooting in 86400 seconds..