fatal error: fault
D0523 19:24:31.648006  251923 task_signals.go:466] [  13:  41] Notified of signal 23
D0523 19:24:31.648483  251923 task_signals.go:220] [  13:  41] Signal 23: delivering to handler
D0523 19:24:31.649077  251923 task_signals.go:466] [  13:  41] Notified of signal 23
D0523 19:24:31.652210  251923 task_signals.go:220] [  13:  41] Signal 23: delivering to handler
D0523 19:24:31.652645  251923 task_signals.go:477] [  13:  41] No task notified of signal 23
D0523 19:24:31.652826  251923 task_signals.go:220] [  13:  41] Signal 23: delivering to handler
D0523 19:24:31.653279  251923 task_signals.go:466] [  13:  41] Notified of signal 23
D0523 19:24:31.653563  251923 task_signals.go:220] [  13:  41] Signal 23: delivering to handler
[signal SIGBUS: bus error code=0x1 addr=0x7fb0ae82f010 pc=0x609946]