Warning: Permanently added '10.128.1.6' (ECDSA) to the list of known hosts.
2019/10/23 02:15:04 fuzzer started
2019/10/23 02:15:05 dialing manager at 10.128.0.105:42531
2019/10/23 02:15:06 syscalls: 2524
2019/10/23 02:15:06 code coverage: enabled
2019/10/23 02:15:06 comparison tracing: enabled
2019/10/23 02:15:06 extra coverage: extra coverage is not supported by the kernel
2019/10/23 02:15:06 setuid sandbox: enabled
2019/10/23 02:15:06 namespace sandbox: enabled
2019/10/23 02:15:06 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/23 02:15:06 fault injection: enabled
2019/10/23 02:15:06 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/23 02:15:06 net packet injection: enabled
2019/10/23 02:15:06 net device setup: enabled
2019/10/23 02:15:06 concurrency sanitizer: enabled
2019/10/23 02:15:08 adding functions to KCSAN blacklist: 'tcp_poll' 'generic_write_end' 'dd_has_work' 'tcp_add_backlog' 'find_next_bit' '__splice_from_pipe' '__hrtimer_run_queues' '__tcp_select_window' 
syzkaller login: [   57.451807][    T0] ==================================================================
[   57.459924][    T0] BUG: KCSAN: data-race in mod_timer / timer_clear_idle
[   57.466827][    T0] 
[   57.469136][    T0] read to 0xffff88812bf1b6e4 of 1 bytes by task 7173 on cpu 0:
[   57.476702][    T0]  mod_timer+0x50d/0x7a0
[   57.480993][    T0]  sk_reset_timer+0x2d/0x70
[   57.485492][    T0]  tcp_rearm_rto.part.0+0x190/0x240
[   57.490680][    T0]  tcp_rearm_rto+0x4f/0x60
[   57.495071][    T0]  tcp_event_new_data_sent+0x1bb/0x1c0
[   57.500502][    T0]  tcp_write_xmit+0xa16/0x3080
[   57.505243][    T0]  __tcp_push_pending_frames+0x7b/0x1d0
[   57.510760][    T0]  tcp_push+0x1e9/0x3d0
[   57.514890][    T0]  tcp_sendmsg_locked+0x1d1e/0x1f30
[   57.520060][    T0]  tcp_sendmsg+0x39/0x60
[   57.524278][    T0]  inet_sendmsg+0x6d/0x90
[   57.528593][    T0]  sock_sendmsg+0x9f/0xc0
[   57.532910][    T0]  sock_write_iter+0x16b/0x210
[   57.537645][    T0]  new_sync_write+0x388/0x4a0
[   57.542288][    T0] 
[   57.544604][    T0] write to 0xffff88812bf1b6e4 of 1 bytes by task 0 on cpu 1:
[   57.551947][    T0]  timer_clear_idle+0x42/0x50
[   57.556598][    T0]  __tick_nohz_idle_restart_tick+0x36/0x1b0
[   57.562464][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   57.567549][    T0]  do_idle+0xb1/0x280
[   57.571506][    T0]  cpu_startup_entry+0x1b/0x20
[   57.576247][    T0]  start_secondary+0x208/0x260
[   57.580984][    T0]  secondary_startup_64+0xa4/0xb0
[   57.585972][    T0] 
[   57.588272][    T0] Reported by Kernel Concurrency Sanitizer on:
[   57.594401][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[   57.601477][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.611512][    T0] ==================================================================
[   57.619545][    T0] Kernel panic - not syncing: panic_on_warn set ...
[   57.626124][    T0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.4.0-rc3+ #0
[   57.633204][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   57.643249][    T0] Call Trace:
[   57.646520][    T0]  dump_stack+0xf5/0x159
[   57.650738][    T0]  panic+0x210/0x640
[   57.654614][    T0]  ? vprintk_func+0x8d/0x140
[   57.659184][    T0]  kcsan_report.cold+0xc/0x10
[   57.663844][    T0]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   57.669373][    T0]  __tsan_write1+0x32/0x40
[   57.673766][    T0]  timer_clear_idle+0x42/0x50
[   57.678421][    T0]  __tick_nohz_idle_restart_tick+0x36/0x1b0
[   57.684289][    T0]  tick_nohz_idle_exit+0x1af/0x1e0
[   57.689378][    T0]  do_idle+0xb1/0x280
[   57.693337][    T0]  cpu_startup_entry+0x1b/0x20
[   57.698075][    T0]  start_secondary+0x208/0x260
[   57.702839][    T0]  secondary_startup_64+0xa4/0xb0
[   57.709041][    T0] Kernel Offset: disabled
[   57.713373][    T0] Rebooting in 86400 seconds..