Panic when using example on ARM

[Hades32]

I built the "surgemq" example on a Raspberry Pi 2 with Debian Jessie and get this

E0221 22:25:38.464626    3586 service.go:193/func·008] (1/mosqpub/3594-jessie-rpi) Recovering from panic: runtime error: invalid memory address or nil pointer dereference
E0221 22:25:38.468213    3586 sendrecv.go:33/func·003] (1/mosqpub/3594-jessie-rpi) Recovering from panic: runtime error: invalid memory address or nil pointer dereference
E0221 22:25:38.468502    3586 sendrecv.go:74/func·004] (1/mosqpub/3594-jessie-rpi) Recovering from panic: runtime error: invalid memory address or nil pointer dereference
^CE0221 22:25:45.004451    3586 surgemq.go:77/func·001] Existing due to trapped signal; interrupt

when I execute mosquitto_pub -r -m "test by mr" -t 'test/topic'.

I had to change the example although as otherwise I got more errors. My imports look now like this:

        "github.com/surgemq/surgemq/service"
        "github.com/surge/glog"

[Hades32]

sorry, looks like a bug in Go on ARM.

For the curious, this is the repro:

package main

import (
    "sync"
    "sync/atomic"
    "fmt"
)

type buffer struct {
        id int32

        mask int64

        done int64

        pcond *sync.Cond
        ccond *sync.Cond

        cwait int64
        pwait int64
}

func test(buf *buffer) bool {
        if atomic.LoadInt64(&buf.done) == 1 {
                return true
        }

        return false
}
func main() {
        var buf buffer
                buf.done = 1
        fmt.Println("pre-fail")
        res := test(&buf)
        fmt.Println("post-fail", res)
}