Add a script to help reproduce #407

contrib/crashTest.go

@@ -0,0 +1,94 @@
+package main
+
+import (
+	"io"
+	"log"
+	"os"
+	"os/exec"
+	"time"
+)
+
+const DOCKER_PATH = "/home/creack/dotcloud/docker/docker/docker"
+
+func runDaemon() (*exec.Cmd, error) {
+	cmd := exec.Command(DOCKER_PATH, "-d")
+	outPipe, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+	errPipe, err := cmd.StderrPipe()
+	if err != nil {
+		return nil, err
+	}
+	if err := cmd.Start(); err != nil {
+		return nil, err
+	}
+	go func() {
+		io.Copy(os.Stdout, outPipe)
+	}()
+	go func() {
+		io.Copy(os.Stderr, errPipe)
+	}()
+	return cmd, nil
+}
+
+func crashTest() error {
+	if err := exec.Command("/bin/bash", "-c", "while true; do true; done").Start(); err != nil {
+		return err
+	}
+
+	for {
+		daemon, err := runDaemon()
+		if err != nil {
+			return err
+		}
+		time.Sleep(5000 * time.Millisecond)
+		go func() error {
+			for i := 0; i < 100; i++ {
+				go func() error {
+					cmd := exec.Command(DOCKER_PATH, "run", "base", "echo", "hello", "world")
+					log.Printf("%d", i)
+					outPipe, err := cmd.StdoutPipe()
+					if err != nil {
+						return err
+					}
+					inPipe, err := cmd.StdinPipe()
+					if err != nil {
+						return err
+					}
+					if err := cmd.Start(); err != nil {
+						return err
+					}
+					go func() {
+						io.Copy(os.Stdout, outPipe)
+					}()
+					// Expecting error, do not check
+					inPipe.Write([]byte("hello world!!!!!\n"))
+					go inPipe.Write([]byte("hello world!!!!!\n"))
+					go inPipe.Write([]byte("hello world!!!!!\n"))
+					inPipe.Close()
+
+					if err := cmd.Wait(); err != nil {
+						return err
+					}
+					outPipe.Close()
+					return nil
+				}()
+				time.Sleep(250 * time.Millisecond)
+			}
+			return nil
+		}()
+
+		time.Sleep(20 * time.Second)
+		if err := daemon.Process.Kill(); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func main() {
+	if err := crashTest(); err != nil {
+		log.Println(err)
+	}
+}