On Tuesday, April 3, 2018 at 4:50:36 PM UTC+2, Dave Cheney wrote:
> I’ve not seen that problem before. I’d hazard a guess that it’s an 
> incorrect go installation. Don’t set goroot, basically ever. But it’s just 
> a guess. 
It is basically problem when I run in docker container. This is sample 

package main

import (

func main() {
        f,_ :=os.Create("./ipcore_blocking.prof")
          defer func() {
                    if err := pprof.Lookup("block").WriteTo(f,0); err !=nil 
                        fmt.Printf("blocking profiler statistic collecition 
initialization failed: %v", err)
        // create new channel of type int
        ch := make(chan int)

        // start new anonymous goroutine
        go func() {
                // send 42 to channel
                ch <- 42
        // read from channel
When I run localhost, it workes well. when I tries to run docker container, 
it didnt work. I can give my dockerfile here. 
FROM golang:1.9-alpine as dev

RUN apk add --no-cache --repository 
http://dl-3.alpinelinux.org/alpine/edge/community upx

WORKDIR /go/src/project

COPY ./main.go /go/src/project
RUN go build -o /bin/project

FROM scratch
COPY --from=dev /bin/project /bin/project
ENTRYPOINT ["/bin/project"]
I have another problem when I run in Docker with CPU profile. 

In this case where to report the issues?

Best regards

> Are you able to create a stand alone program that demonstrates the issue 
> with the profile? Please consider raising a bug, golang.org/issue/new

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