diff --git a/kernel/pid.c b/kernel/pid.c
index b13b624e2c49..c9ef3328a52a 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -146,6 +146,8 @@ void free_pid(struct pid *pid)
 
 struct pid *alloc_pid(struct pid_namespace *ns)
 {
+	static int try = 0;
+	bool fail = false;
 	struct pid *pid;
 	enum pid_type type;
 	int i, nr;
@@ -153,6 +155,9 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 	struct upid *upid;
 	int retval = -ENOMEM;
 
+	if (strncmp(current->comm, "trinity", 7) == 0)
+		printk("%s: pid_ns level %d\n", __func__, ns->level);
+
 	pid = kmem_cache_alloc(ns->pid_cachep, GFP_KERNEL);
 	if (!pid)
 		return ERR_PTR(retval);
@@ -163,6 +168,9 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 	for (i = ns->level; i >= 0; i--) {
 		int pid_min = 1;
 
+		if (strncmp(current->comm, "trinity", 7) == 0)
+			printk("%s: '%s' level %d\n", __func__, current->comm, tmp->level);
+
 		idr_preload(GFP_KERNEL);
 		spin_lock_irq(&pidmap_lock);
 
@@ -173,12 +181,25 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 		if (idr_get_cursor(&tmp->idr) > RESERVED_PIDS)
 			pid_min = RESERVED_PIDS;
 
+		if (fail && strncmp(current->comm, "trinity", 7) == 0) {
+			fail = false;
+			nr = -ENOMEM;
+			goto xxx;
+		}
+
 		/*
 		 * Store a null pointer so find_pid_ns does not find
 		 * a partially initialized PID (see below).
 		 */
+		if (strncmp(current->comm, "trinity", 7) == 0) {
+			printk("BEFORE ->idr_next %u\n", tmp->idr.idr_next);
+		}
 		nr = idr_alloc_cyclic(&tmp->idr, NULL, pid_min,
 				      pid_max, GFP_ATOMIC);
+		if (strncmp(current->comm, "trinity", 7) == 0) {
+			printk(" AFTER ->idr_next %u\n", tmp->idr.idr_next);
+		}
+xxx:
 		spin_unlock_irq(&pidmap_lock);
 		idr_preload_end();
 
@@ -187,6 +208,12 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 			goto out_free;
 		}
 
+		if (try == 0 && strncmp(current->comm, "trinity", 7) == 0) {
+			if (tmp->level == 1) {
+				fail = true;
+			}
+		}
+
 		pid->numbers[i].nr = nr;
 		pid->numbers[i].ns = tmp;
 		tmp = tmp->parent;
@@ -229,6 +256,9 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 	spin_unlock_irq(&pidmap_lock);
 
 	kmem_cache_free(ns->pid_cachep, pid);
+	if (strncmp(current->comm, "trinity", 7) == 0) {
+		try++;
+	}
 	return ERR_PTR(retval);
 }