diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 806f1fb..deac5e8 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -177,6 +177,8 @@ static inline int snd_pcm_update_hw_ptr_post(struct snd_pcm_substream *substream
 			xrun(substream);
 		return -EPIPE;
 	}
+	printk(KERN_DEBUG "avail %lu max %lu min %lu\n", avail, runtime->avail_max,
+				runtime->control->avail_min);
 	if (avail >= runtime->control->avail_min)
 		wake_up(&runtime->sleep);
 	return 0;
@@ -1651,6 +1653,10 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
 		if (runtime->sleep_min == 0 && runtime->status->state == SNDRV_PCM_STATE_RUNNING)
 			snd_pcm_update_hw_ptr(substream);
 		avail = snd_pcm_playback_avail(runtime);
+		printk(KERN_DEBUG "writei size %lu avail %lu min %lu xfer %lu state %d\n",
+				size, avail, runtime->control->avail_min, runtime->xfer_align,
+				runtime->status->state);
+
 		if (((avail < runtime->control->avail_min && size > avail) ||
 		   (size >= runtime->xfer_align && avail < runtime->xfer_align))) {
 			wait_queue_t wait;
@@ -1695,6 +1701,8 @@ static snd_pcm_sframes_t snd_pcm_lib_write1(struct snd_pcm_substream *substream,
 					break;
 				}
 				avail = snd_pcm_playback_avail(runtime);
+				printk(KERN_DEBUG "writei loop avail %lu min %lu\n", avail,
+						runtime->control->avail_min);
 				if (avail >= runtime->control->avail_min) {
 					state = READY;
 					break;