Hi Prabhakar, These two patches add protection to the dma_queue. We discovered that not locking caused race conditions, which caused the display DMA to jam. After adding the lock we never saw this again. It makes sense as well since the interrupt routine and normal code both manipulated the same list. It's fixed for both capture and display. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html