--- sound/pci/emu10k1/memory.c

+++ sound/pci/emu10k1/memory.c

@@ -309,8 +309,10 @@ snd_emu10k1_alloc_pages(struct snd_emu10

if (snd_BUG_ON(!hdr))

return NULL;

+ idx = runtime->period_size >= runtime->buffer_size ?

+ (emu->delay_pcm_irq * 2) : 0;

mutex_lock(&hdr->block_mutex);

- blk = search_empty(emu, runtime->dma_bytes);

+ blk = search_empty(emu, runtime->dma_bytes + idx);

if (blk == NULL) {

mutex_unlock(&hdr->block_mutex);

return NULL;