diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index c70441f..f7d61ab 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -916,7 +916,7 @@ static int add_recvbuf_small(struct virtnet_info *vi, struct receive_queue *rq,
 	void *ctx = (void *)(unsigned long)xdp_headroom;
 	int len = vi->hdr_len + VIRTNET_RX_PAD + GOOD_PACKET_LEN + xdp_headroom;
 	int err;
-
+	//printk("[Peter] add_recvbuf_small name = %s\n", rq->vq->name);
 	len = SKB_DATA_ALIGN(len) +
 	      SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
 	if (unlikely(!skb_page_frag_refill(len, alloc_frag, gfp)))
@@ -939,7 +939,7 @@ static int add_recvbuf_big(struct virtnet_info *vi, struct receive_queue *rq,
 	struct page *first, *list = NULL;
 	char *p;
 	int i, err, offset;
-
+	//printk("[Peter] add_recvbuf_big name = %s\n", rq->vq->name);
 	sg_init_table(rq->sg, MAX_SKB_FRAGS + 2);
 
 	/* page in rq->sg[MAX_SKB_FRAGS + 1] is list tail */
@@ -1002,7 +1002,7 @@ static int add_recvbuf_mergeable(struct virtnet_info *vi,
 	void *ctx;
 	int err;
 	unsigned int len, hole;
-
+	//printk("[Peter] add_recvbuf_mergeable name = %s\n", rq->vq->name);
 	len = get_mergeable_buf_len(rq, &rq->mrg_avg_pkt_len);
 	if (unlikely(!skb_page_frag_refill(len + headroom, alloc_frag, gfp)))
 		return -ENOMEM;
@@ -2463,9 +2463,15 @@ static ssize_t mergeable_rx_buffer_size_show(struct netdev_rx_queue *queue,
 	return sprintf(buf, "%u\n",
 		       get_mergeable_buf_len(&vi->rq[queue_index], avg));
 }
-
+//added by peter
+extern volatile int g_trigger_bug;
+ssize_t mergeable_rx_buffer_size_store(struct netdev_rx_queue *queue,
+	const char* buf, size_t len) {
+	kstrtos32(buf, 10, &g_trigger_bug);
+	printk("[Peter] g_trigger_bug set to %d\n", g_trigger_bug);
+}
 static struct rx_queue_attribute mergeable_rx_buffer_size_attribute =
-	__ATTR_RO(mergeable_rx_buffer_size);
+	__ATTR_RW(mergeable_rx_buffer_size); // modified by peter
 
 static struct attribute *virtio_net_mrg_rx_attrs[] = {
 	&mergeable_rx_buffer_size_attribute.attr,