package common import ( "fmt" "os" "runtime" "runtime/debug" ) func Report(extra ...interface{}) { fmt.Fprintln(os.Stderr, "You've encountered a sought after, hard to reproduce bug. Please report this to the developers <3 https://github.com/ethereum/go-ethereum/issues") fmt.Fprintln(os.Stderr, extra...) _, file, line, _ := runtime.Caller(1) fmt.Fprintf(os.Stderr, "%v:%v\n", file, line) debug.PrintStack() fmt.Fprintln(os.Stderr, "#### BUG! PLEASE REPORT ####") }