Warning: Permanently added '10.128.0.17' (ECDSA) to the list of known hosts.
2020/05/10 02:33:30 fuzzer started
2020/05/10 02:33:30 dialing manager at 10.128.0.105:46779
2020/05/10 02:33:30 syscalls: 3055
2020/05/10 02:33:30 code coverage: enabled
2020/05/10 02:33:30 comparison tracing: enabled
2020/05/10 02:33:30 extra coverage: enabled
2020/05/10 02:33:30 setuid sandbox: enabled
2020/05/10 02:33:30 namespace sandbox: enabled
2020/05/10 02:33:30 Android sandbox: /sys/fs/selinux/policy does not exist
2020/05/10 02:33:30 fault injection: enabled
2020/05/10 02:33:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/05/10 02:33:30 net packet injection: enabled
2020/05/10 02:33:30 net device setup: enabled
2020/05/10 02:33:30 concurrency sanitizer: enabled
2020/05/10 02:33:30 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/05/10 02:33:30 USB emulation: enabled
syzkaller login: [   47.670434][ T8891] KCSAN: could not find function: '_find_next_bit'
2020/05/10 02:33:33 adding functions to KCSAN blacklist: '_find_next_bit' 'do_nanosleep' 'generic_file_read_iter' 'ep_poll' 'ext4_mark_iloc_dirty' 'page_counter_charge' 'blk_mq_get_request' '__filemap_fdatawrite_range' 'generic_fillattr' 'mod_timer' 'ep_insert' 'sync_inodes_sb' 'ext4_free_inodes_count' '__ext4_new_inode' 'find_get_pages_range_tag' 'generic_write_end' 'xas_clear_mark' 
[   53.203269][    T0] ==================================================================
[   53.211412][    T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_idle_stop_tick
[   53.220330][    T0] 
[   53.222666][    T0] write to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 1:
[   53.230045][    T0]  tick_nohz_idle_stop_tick+0x52c/0x680
[   53.235594][    T0]  do_idle+0x1ad/0x290
[   53.239666][    T0]  cpu_startup_entry+0x14/0x20
[   53.244454][    T0]  start_secondary+0x169/0x1b0
[   53.249220][    T0]  secondary_startup_64+0xa4/0xb0
[   53.254222][    T0] 
[   53.256556][    T0] read to 0xffffffff8764e210 of 4 bytes by task 0 on cpu 0:
[   53.263846][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[   53.269399][    T0]  do_idle+0x1ad/0x290
[   53.273471][    T0]  cpu_startup_entry+0x14/0x20
[   53.278231][    T0]  rest_init+0xe4/0xeb
[   53.282300][    T0]  arch_call_rest_init+0x13/0x2b
[   53.287235][    T0]  start_kernel+0x7fe/0x823
[   53.291925][    T0]  secondary_startup_64+0xa4/0xb0
[   53.296932][    T0] 
[   53.299254][    T0] Reported by Kernel Concurrency Sanitizer on:
[   53.305426][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[   53.313306][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.323359][    T0] ==================================================================
[   53.331418][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   53.338016][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[   53.345897][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.355942][    T0] Call Trace:
[   53.359240][    T0]  dump_stack+0x11d/0x187
[   53.363958][    T0]  panic+0x210/0x640
[   53.367879][    T0]  ? vprintk_func+0x89/0x13a
[   53.372471][    T0]  kcsan_report.cold+0xc/0x1a
[   53.377167][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[   53.382557][    T0]  tick_nohz_idle_stop_tick+0x191/0x680
[   53.388109][    T0]  do_idle+0x1ad/0x290
[   53.392181][    T0]  ? debug_smp_processor_id+0x3f/0x129
[   53.397741][    T0]  cpu_startup_entry+0x14/0x20
[   53.402504][    T0]  rest_init+0xe4/0xeb
[   53.406588][    T0]  ? trace_init_perf_perm_irq_work_exit+0xe/0xe
[   53.412859][    T0]  arch_call_rest_init+0x13/0x2b
[   53.417805][    T0]  start_kernel+0x7fe/0x823
[   53.422320][    T0]  secondary_startup_64+0xa4/0xb0
[   53.428825][    T0] Kernel Offset: disabled
[   53.433149][    T0] Rebooting in 86400 seconds..