print log after test

Makefile.am

@@ -22,4 +22,5 @@ build-runv:
 	go build -tags "static_build $(HYPER_BULD_TAGS)" -o runv .
 test-integration:
 	cd integration-test/test_data && make
-	cd integration-test && go test -check.v -test.timeout=120m ${TESTFLAGS} .
+	cd integration-test && go test -check.v -test.timeout=120m ${TESTFLAGS} . ; ret=$$? ;\
+	sync; sleep 20; sync; find /var/log/hyper/ -type f -exec echo -e '\n\nLog of ' {} ':' \; -exec cat {} \; ; exit $$ret

integration-test/utils.go

@@ -7,6 +7,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"syscall"
+	"time"
 
 	"github.com/docker/docker/integration-cli/checker"
 	"github.com/go-check/check"
@@ -39,11 +40,20 @@ func ProcessExitCode(err error) (exitCode int) {
 }
 
 func (s *RunVSuite) runvCommandWithError(args ...string) (string, int, error) {
+	killer := time.AfterFunc(40*time.Second, func() {
+		exec.Command("pkill", "-9", "runv").Run()
+		exec.Command("pkill", "-9", "qemu").Run()
+		exec.Command("pkill", "-9", "containerd-nslistener").Run()
+	})
+
 	cmdArgs := []string{"--kernel", s.kernelPath, "--initrd", s.initrdPath, "--debug"}
 	cmdArgs = append(cmdArgs, args...)
 	cmd := exec.Command(s.binaryPath, cmdArgs...)
 	out, err := cmd.CombinedOutput()
 	exitCode := ProcessExitCode(err)
+	if !killer.Stop() {
+		err = fmt.Errorf("test timeout error, orgin exec error: %v", err)
+	}
 	return string(out), exitCode, err
 }