cpu.CPUInfo() returns empty []cpu.CPUInfoStat object on linux

[ghost]

The cpu library appears to be broken on linux, found while chasing down hashicorp/nomad#302

Tested with the following code:

// snippets2
package main

import (
"github.com/davecgh/go-spew/spew"
"github.com/shirou/gopsutil/cpu"
)

func main() {
info, err := cpu.CPUInfo()
if err != nil {
    panic(err)
}
spew.Dump(info)
}

On darwin I get this:

([]cpu.CPUInfoStat) (len=1 cap=1) {
 (cpu.CPUInfoStat) {"cpu":0,"vendor_id":"GenuineIntel","family":"6","model":"70","stepping":1,"physical_id":"","core_id":"","cores":4,"model_name":"Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz","mhz":2300,"cache_size":256,"flags":["fpu","vme","de","pse","tsc","msr","pae","mce","cx8","apic","sep","mtrr","pge","mca","cmov","pat","pse36","clfsh","ds","acpi","mmx","fxsr","sse","sse2","ss","htt","tm","pbe","sse3","pclmulqdq","dtes64","mon","dscpl","vmx","smx","est","tm2","ssse3","fma","cx16","tpr","pdcm","sse4.1","sse4.2","x2apic","movbe","popcnt","aes","pcid","xsave","osxsave","seglim64","tsctmr","avx1.0","rdrand","f16c","smep","erms","rdwrfsgs","tsc_thread_offset","bmi1","hle","avx2","bmi2","invpcid","rtm","syscall","xd","1gbpage","em64t","lahf","lzcnt","rdtscp","tsci"]}

}

On CentOS Linux release 7.1.1503 (Core)

([]cpu.CPUInfoStat) <nil>

This is with go version 1.5.1 in both places. Running as root doesn't make a difference. Tested with a 'go get' of the library a few minutes ago.

[kardianos]

That function is broken at tip right now. PR #98 fixes the issue (path combine bug).

[kardianos]

This is fixed at tip and can probably be closed. Can you re-test?

[ghost]

I will rebuild my test environment this evening and get back to you.

[shirou]

@rvm2015
How about your build at latest revision? I close this issue. if you still have a problem, feel free to reopen.
Thank you!