os/exec: hungup error on Plan 9 while copying stdin #35753
Description
What version of Go are you using (go version)?
$ go version go version devel +master Thu Nov 21 01:22:38 EST 2019 plan9/386
What did you do?
Run this program:
package main
import (
"log"
"os"
"os/exec"
"strings"
)
func main() {
cmd := exec.Command("date")
cmd.Stdin = strings.NewReader("hello\n")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
log.Fatalf("Run failed: %v", err)
}
}What did you expect to see?
No error
What did you see instead?
cpu% go run main.go
Thu Nov 21 12:33:54 EST 2019
2019/11/21 12:33:54 Run failed: write |1: i/o on hungup channel
exit status: 'main 100206: 1'
Note: This issue is causing some go/packages tests to fail. See https://build.golang.org/log/f8afda4bf9009c118c39705ccf38712f705ab249
I propose ignoring this error, similar to how EPIPE is currently being ignored in unix.
@gopherbot Please add labels OS-Plan9, NeedsFix