diff --git a/tools/pidtest.c b/tools/pidtest.c
new file mode 100644
index 0000000000..cded580281
--- /dev/null
+++ b/tools/pidtest.c
@@ -0,0 +1,65 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <stdio.h>
+#define SAME 1
+
+int childflag = 0;
+int grandchildflag = 0;
+void *
+grandchild_func(void * data)
+{
+        pid_t pid = (pid_t) data;
+
+        if (pid ==  getpid()){
+                grandchildflag = SAME;
+        }
+
+        if (grandchildflag ^ childflag){
+                printf("Inconsistency detected\n");
+        }
+        return NULL;
+}
+
+void *
+child_func(void * data)
+{
+        pid_t pid = (pid_t) data;
+        pthread_t thread_id;
+
+        if (pid ==  getpid()){
+                childflag = SAME;
+        }
+
+        pthread_create(&thread_id, NULL, grandchild_func, (void*)getpid());
+
+}
+
+int
+main()
+{
+        pthread_t thread_id;
+        pthread_attr_t tattr;
+        int  firsttime = 1;
+
+        pthread_attr_init(&tattr);
+        pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
+
+again:
+       if ( fork() == 0 ) { 
+                childflag = 0; 
+                grandchildflag =0;
+                if (pthread_create(&thread_id, &tattr, child_func, (void*)getpid()) != 0){
+                        printf("%s: creating thread failed", __FUNCTION__);
+                }
+                sleep(1);
+                if (firsttime){
+                        firsttime=0;
+                        goto again;
+                }
+        }
+
+        sleep(5);
+        return 0;
+}
+