Warning: Permanently added '10.128.0.250' (ECDSA) to the list of known hosts. 2019/10/06 15:57:44 fuzzer started 2019/10/06 15:57:46 dialing manager at 10.128.0.105:35709 2019/10/06 15:57:46 syscalls: 2523 2019/10/06 15:57:46 code coverage: enabled 2019/10/06 15:57:46 comparison tracing: enabled 2019/10/06 15:57:46 extra coverage: extra coverage is not supported by the kernel 2019/10/06 15:57:46 setuid sandbox: enabled 2019/10/06 15:57:46 namespace sandbox: enabled 2019/10/06 15:57:46 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/06 15:57:46 fault injection: enabled 2019/10/06 15:57:46 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/06 15:57:46 net packet injection: enabled 2019/10/06 15:57:46 net device setup: enabled 2019/10/06 15:57:46 concurrency sanitizer: enabled syzkaller login: [ 52.117434][ T0] ================================================================== [ 52.125609][ T0] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event [ 52.134163][ T0] [ 52.136471][ T0] write to 0xffffffff85caf2d0 of 4 bytes by task 0 on cpu 1: [ 52.143840][ T0] tick_nohz_idle_stop_tick+0x525/0x670 [ 52.149360][ T0] do_idle+0x1e0/0x2c0 [ 52.153407][ T0] cpu_startup_entry+0x1b/0x20 [ 52.158149][ T0] start_secondary+0x207/0x260 [ 52.162887][ T0] secondary_startup_64+0xa4/0xb0 [ 52.167881][ T0] [ 52.170189][ T0] read to 0xffffffff85caf2d0 of 4 bytes by task 0 on cpu 0: [ 52.177447][ T0] tick_nohz_next_event+0x1a4/0x380 [ 52.182635][ T0] tick_nohz_idle_stop_tick+0x3c2/0x670 [ 52.188155][ T0] do_idle+0x1e0/0x2c0 [ 52.192200][ T0] cpu_startup_entry+0x1b/0x20 [ 52.196939][ T0] rest_init+0xec/0xf6 [ 52.200986][ T0] arch_call_rest_init+0x17/0x37 [ 52.205992][ T0] start_kernel+0x83e/0x864 [ 52.210472][ T0] x86_64_start_reservations+0x29/0x2b [ 52.215907][ T0] x86_64_start_kernel+0x72/0x76 [ 52.220816][ T0] secondary_startup_64+0xa4/0xb0 [ 52.225806][ T0] [ 52.228105][ T0] Reported by Kernel Concurrency Sanitizer on: [ 52.234232][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0+ #0 [ 52.240962][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.250991][ T0] ================================================================== [ 52.259037][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 52.265613][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.0+ #0 [ 52.272348][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.282374][ T0] Call Trace: [ 52.285647][ T0] dump_stack+0xf5/0x159 [ 52.289865][ T0] panic+0x209/0x639 [ 52.293742][ T0] ? vprintk_func+0x8d/0x140 [ 52.298311][ T0] kcsan_report.cold+0x57/0xeb [ 52.303051][ T0] __kcsan_setup_watchpoint+0x342/0x500 [ 52.308574][ T0] __tsan_read4+0x2c/0x30 [ 52.312895][ T0] tick_nohz_next_event+0x1a4/0x380 [ 52.318084][ T0] tick_nohz_idle_stop_tick+0x3c2/0x670 [ 52.323606][ T0] ? __tsan_read4+0x2c/0x30 [ 52.328088][ T0] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.334308][ T0] do_idle+0x1e0/0x2c0 [ 52.338356][ T0] cpu_startup_entry+0x1b/0x20 [ 52.343109][ T0] rest_init+0xec/0xf6 [ 52.347169][ T0] ? trace_event_define_fields_vector_free_moved+0xce/0xce [ 52.354339][ T0] arch_call_rest_init+0x17/0x37 [ 52.359254][ T0] start_kernel+0x83e/0x864 [ 52.364183][ T0] x86_64_start_reservations+0x29/0x2b [ 52.369616][ T0] x86_64_start_kernel+0x72/0x76 [ 52.374530][ T0] secondary_startup_64+0xa4/0xb0 [ 52.380676][ T0] Kernel Offset: disabled [ 52.384995][ T0] Rebooting in 86400 seconds..