diff --git a/src/runtime/crash_unix_test.go b/src/runtime/crash_unix_test.go
index 1a012eb6ef15c..771b303f6ee39 100644
--- a/src/runtime/crash_unix_test.go
+++ b/src/runtime/crash_unix_test.go
@@ -14,6 +14,7 @@ import (
 	"os/exec"
 	"path/filepath"
 	"runtime"
+	"strings"
 	"syscall"
 	"testing"
 )
@@ -52,6 +53,18 @@ func TestCrashDumpsAllThreads(t *testing.T) {
 	cmd = exec.Command(filepath.Join(dir, "a.exe"))
 	cmd = testEnv(cmd)
 	cmd.Env = append(cmd.Env, "GOTRACEBACK=crash")
+
+	// Set GOGC=off. Because of golang.org/issue/10958, the tight
+	// loops in the test program are not preemptible. If GC kicks
+	// in, it may lock up and prevent main from saying it's ready.
+	newEnv := []string{}
+	for _, s := range cmd.Env {
+		if !strings.HasPrefix(s, "GOGC=") {
+			newEnv = append(newEnv, s)
+		}
+	}
+	cmd.Env = append(newEnv, "GOGC=off")
+
 	var outbuf bytes.Buffer
 	cmd.Stdout = &outbuf
 	cmd.Stderr = &outbuf